Automation mechanisms for the pump are used to ensure the autonomous operation of devices with the setting of a suitable mode. In addition, high-quality automation protects the pumps from dry running and saves energy consumption. This approach allows you to extend the life of expensive pumping equipment.
A feature of Jileks' automation is the ability to use devices both with branded models and with devices from other manufacturers. In addition, inexpensive equipment has a number of other useful properties.
The main element of the company's pumping process automation is the Jileks automation unit. Such a device is connected directly to the pumping device and reacts to the pressure level in the system.
The Jileks block consists of a plastic case with a metal cover. Inside the body there is a spring, an electronic unit, complete with a pressure switch and a movable mechanism that closes the contacts when the pressure drops. For external control over the operation of the device, a pressure gauge is mounted on the side surface of the unit.
The device is designed to operate on the basis of a pumping station or other surface pump that transfers clean water... Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.
Dzhileks automatic equipment functions independently from the usual electrical network. After 30 seconds after installing and connecting the unit, it turns on and works within a few seconds. Then the device turns off and is activated only in case of a change in the pressure in the line.
When the tap at the point of water consumption is opened, the pressure in the pipe begins to decrease rapidly. In this case, the unit immediately turns on and, when the minimum pressure indicator is reached, activates the electric pump. The device pumps water until the pressure is equalized again (when the tap is closed). After the tap is closed, the device works for another 5-20 seconds, continuing to pump water into the line. This measure is a precaution in case the pressure in the system drops below normal and the device is not able to track the pressure level.
Dzhileks 9001 automatic equipment is installed in the supply line complete with additional equipment... Therefore, an important step is correct installation and setting up all components. Installation automation unit Press control from Gileks is carried out in the following order:
If necessary, the supply line is supplemented with filters for water purification and a receiver to equalize the pressure in the system.
After all the components are installed in the line, it is necessary to check the device. For this, the pump inlet through the pipeline is filled with liquid and the pump is turned on. One of the indicators on the unit immediately lights up. This indicates that there is contact between the unit and the pumping device. Within a few tens of seconds, the device works and then turns off.
After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then the topmost one is desirable). However, there are two options:
Automation from Dzhileks is a universal device. With its help, the operation of pumping devices from various manufacturers can be regulated. Regarding the principle of operation, such a pressure equalization mechanism is installed on a vibration, centrifugal, vortex, screw pump.
The device works most effectively in combination with pumping devices that meet the following characteristics:
In addition to the automation unit, the company also produces less popular automation options for pumping equipment. One of these options is the installation of Jilex Crab. The device is responsible for a stable pressure in the supply line, starts and stops the pump if necessary. In addition, the filter element removes solids from the stream.
Jilex Crab consists of the following components:
The device operates on the basis of a standard 220 V electrical network. Suitable for simultaneous connection of 2-3 water intake points. An adjustable relay allows you to set, even before starting work, the pressure level that the device will maintain. Like the previous type of devices, the Crab 50 is a universal device and is suitable for connecting to borehole pumps any manufacturer.
More simple option automation of the pumping station is the installation of a special relay RDM-5 on it. The compact device is mounted in the pipeline and connected to the pumping unit using electrical cable... The wire is fixed to the relay contacts.
The principle of operation of the device is as follows. The device reacts to the pressure level in the line. If the indicator is below the set value, the contacts are connected, the current is supplied to the water intake point and the liquid fills the pipeline until the pressure returns to normal. When the pressure level returns to normal (this indicator is also set by the user), the contacts diverge. The supply of current to the downhole apparatus is interrupted and it is turned off.
The minimum and maximum indicators at which the pumping device is triggered are set by the user. They can be adjusted using two nuts that fix the degree of spring tension. A larger nut, when turned counterclockwise, sets the maximum pressure, a smaller nut, when rotating, allows you to adjust the difference between the maximum and minimum value.
RDM-5 is designed to be used exclusively in water. The operating voltage for the device is 220-230 V. The temperature of the pumped liquid is 0-40 degrees. The relay is fixed to the ¼ ”pipeline. A prerequisite for using the RDM-5 is a high-quality grounding.
For drainage, fecal and surface water pumps, the cheapest and in a practical way automation is a float switch. According to the scope of use, such devices are divided into light and heavy. Drainage models are equipped with a light float, heavy floats are installed at water supply stations and water pumps.
The structure consists of an electric cable 3.5, 8 or 10 m long and a plastic float mechanism. Inside the float there are two contacts, a switch lever and a ball that changes the position of the lever. By the number of wires, two and three-wire floats are distinguished.
In the version with two wires, they are directly connected to the contacts of the float. When such a mechanism rises with the water level to the designated level, the lever presses on the contacts, they close and supply energy to the pump.
In models with three wires, the ability to turn on the fence point in the upper and lower positions is supported. To do this, one wire goes to one of the contacts, and the other two wires, depending on the position, go to the second contact.
The principle of operation of such a float mechanism is that the device automatically turns on the pump when the water level rises to the set value. In the case of a two-wire device, the float, on the contrary, opens the contacts and turns off the device when the water falls below normal.
Automation mechanisms for the pump are used to ensure the autonomous operation of devices with the setting of a suitable mode. In addition, high-quality automation protects the pumps from dry running and saves energy consumption. This approach allows you to extend the life of expensive pumping equipment.
A feature of Jileks' automation is the ability to use devices both with branded models and with devices from other manufacturers. In addition, inexpensive equipment has a number of other useful properties.
The main element of the company's pumping process automation is the Jileks automation unit. Such a device is connected directly to the pumping device and reacts to the pressure level in the system.
The Jileks block consists of a plastic case with a metal cover. Inside the body there is a spring, an electronic unit, complete with a pressure switch and a movable mechanism that closes the contacts when the pressure drops. For external control over the operation of the device, a pressure gauge is mounted on the side surface of the unit.
The device is designed to work on the basis of a pumping station or other surface pump pumping clean water. Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.
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Dzhileks automatic equipment functions independently from the usual electrical network. After 30 seconds after installing and connecting the unit, it turns on and works within a few seconds. Then the device turns off and is activated only in case of a change in the pressure in the line.
When the tap at the point of water consumption is opened, the pressure in the pipe begins to decrease rapidly. In this case, the unit immediately turns on and, when the minimum pressure indicator is reached, activates the electric pump. The device pumps water until the pressure is equalized again (when the tap is closed). After the tap is closed, the device works for another 5-20 seconds, continuing to pump water into the line. This measure is a precaution in case the pressure in the system drops below normal and the device is not able to track the pressure level.
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Dzhileks 9001 automatic equipment is installed in the supply line complete with additional equipment. Therefore, an important step is the correct installation and configuration of all components. The installation of the automatic control unit from Dzhileks is carried out in the following order:
If necessary, the supply line is supplemented with filters for water purification and a receiver to equalize the pressure in the system.
After all the components are installed in the line, it is necessary to check the device. For this, the pump inlet through the pipeline is filled with liquid and the pump is turned on. One of the indicators on the unit immediately lights up. This indicates that there is contact between the unit and the pumping device. Within a few tens of seconds, the device works and then turns off.
After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then the topmost one is desirable). However, there are two options:
Automation from Dzhileks is a universal device. With its help, the operation of pumping devices from various manufacturers can be regulated. Regarding the principle of operation, such a pressure equalization mechanism is installed on a vibration, centrifugal, vortex, screw pump.
The device works most effectively in combination with pumping devices that meet the following characteristics:
In addition to the automation unit, the company also produces less popular automation options for pumping equipment. One of these options is the installation of Jilex Crab. The device is responsible for a stable pressure in the supply line, starts and stops the pump if necessary. In addition, the filter element removes solids from the stream.
Jilex Crab consists of the following components:
The device operates on the basis of a standard 220 V electrical network. Suitable for simultaneous connection of 2-3 water intake points. An adjustable relay allows you to set, even before starting work, the pressure level that the device will maintain. Like the previous type of devices, the Crab 50 is a universal device and is suitable for connection to borehole pumps of any manufacturer.
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A simpler option for automating a pumping station is to install a special relay RDM-5 on it. The compact device is installed in the pipeline and connected to the pumping unit using an electric cable. The wire is fixed to the relay contacts.
The principle of operation of the device is as follows. The device reacts to the pressure level in the line. If the indicator is below the set value, the contacts are connected, the current is supplied to the water intake point and the liquid fills the pipeline until the pressure returns to normal. When the pressure level returns to normal (this indicator is also set by the user), the contacts diverge. The supply of current to the downhole apparatus is interrupted and it is turned off.
The minimum and maximum indicators at which the pumping device is triggered are set by the user. They can be adjusted using two nuts that fix the degree of spring tension. A larger nut, when turned counterclockwise, sets the maximum pressure, a smaller nut, when rotating, allows you to adjust the difference between the maximum and minimum value.
RDM-5 is designed to be used exclusively in water. The operating voltage for the device is 220-230 V. The temperature of the pumped liquid is 0-40 degrees. The relay is fixed to the ¼ ”pipeline. A prerequisite for using the RDM-5 is a high-quality grounding.
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For drainage, sewage and surface water pumps, the cheapest and most practical automation method is a float switch. According to the scope of use, such devices are divided into light and heavy. Drainage models are equipped with a light float, heavy floats are installed at water supply stations and water pumps.
The structure consists of an electric cable 3.5, 8 or 10 m long and a plastic float mechanism. Inside the float there are two contacts, a switch lever and a ball that changes the position of the lever. By the number of wires, two and three-wire floats are distinguished.
In the version with two wires, they are directly connected to the contacts of the float. When such a mechanism rises with the water level to the designated level, the lever presses on the contacts, they close and supply energy to the pump.
In models with three wires, the ability to turn on the fence point in the upper and lower positions is supported. To do this, one wire goes to one of the contacts, and the other two wires, depending on the position, go to the second contact.
The principle of operation of such a float mechanism is that the device automatically turns on the pump when the water level rises to the set value. In the case of a two-wire device, the float, on the contrary, opens the contacts and turns off the device when the water falls below normal.
byreniepro.ru
Structurally, the relay is made in the form of a compact block with springs of maximum and minimum pressure, the tension of which is regulated by nuts. The diaphragm, connected to the springs, reacts to changes in the pressure force. Upon reaching minimum value the spring weakens, at the maximum level - it is compressed more. The impact on the springs causes the relay contacts to open (close), switching off or on the pump.
The presence of a relay in the water supply system allows ensuring constant pressure and the required water pressure in the system. The pump is automatically controlled. Correctly set levels of minimum and maximum pressure ensure its periodic shutdown, which contributes to a significant increase in trouble-free service life.
The sequence of operation of the pumping station under the control of the relay is as follows:
The main parameters of the relay:
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In the process of assembling the pumping station, special attention is paid to setting the pressure switch. The ease of operation of the water supply system, as well as the terms of trouble-free service of all components of the device, depends on how correctly its limit levels are set.
At the first stage, you need to check the pressure that was created in the tank during the manufacture of the pumping station. Typically, the factory setting is set to 1.5 atmospheres and off to 2.5 atmospheres. Check this with an empty tank and a pumping station disconnected from the mains. It is recommended to check with an automotive mechanical pressure gauge. It is housed in a metal case, so measurements are more accurate than using electronic or plastic gauges. Their readings can be affected by both the room temperature and the battery charge level. It is desirable that the scale limit of the pressure gauge be as small as possible. Because on a scale of, say, 50 atmospheres, it will be very difficult to accurately measure one atmosphere.
To check the pressure in the tank, you need to unscrew the cap that closes the spool, connect the pressure gauge and take a reading on its scale. The air pressure should be checked periodically thereafter, eg once a month. In this case, water must be completely removed from the tank by turning off the pump and opening all the taps.
Another option is also possible - to carefully monitor the pump shutdown pressure. If it increases, this will mean a decrease in air pressure in the tank. The lower the air pressure, the more water supply can be created. However, the pressure spread from a completely filled to practically empty tank is large, and all this will depend on the preferences of the consumer.
Having chosen the desired operating mode, you need to install it, bleeding off excess air for this, or pump it up additionally. It must be borne in mind that you should not reduce the pressure to a value less than one atmosphere, and also pump it over too much. Due to the small amount of air, a rubber container filled with water inside the tank will touch its walls and wipe off. And excess air will not make it possible to pump a lot of water, since a significant part of the volume of the tank will be occupied by air.
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In pumping stations, which are supplied assembled, the pressure switch is preset to the best option... But when installing it from various elements at the place of operation, the relay setting must be carried out without fail. This is due to the need to ensure an effective relationship between the relay settings and the tank volume and pump head. In addition, it may be necessary to change the initial setting of the pressure switch. The procedure should be as follows:
In practice, the power of the pumps is chosen such that it does not allow pumping the tank to the extreme limit. Usually the cut-off pressure is set a couple of atmospheres above the cut-off threshold.
It is also allowed to set limit pressure levels that differ from the recommended values. In this way, you can set your own version of the operating mode of the pumping station. Moreover, when setting the pressure difference with a small nut, one must proceed from the fact that the starting point of reference should be the lower level set by the large nut. The upper level can only be set within the limits for which the system is designed. In addition, rubber hoses and other plumbing fixtures also withstand pressure no higher than the design pressure. All this must be taken into account when installing the pumping station. In addition, the excessive pressure of water from the tap is often completely unnecessary and uncomfortable.
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Adjustment of the pressure switch is practiced in cases where it is necessary to set the levels of the upper and lower pressures to the specified values. For example, you want to set the upper pressure to 3 atmospheres, the lower - 1.7 atmospheres. The adjustment process is as follows:
If given high pressure to turn off and low - to turn on, the tank is filled with a large amount of water, and there is no need to turn on the pump frequently. Inconvenience occurs only due to the large pressure drop when the tank is full or almost empty. In other cases, when the pressure range is small, and the pump often has to be pumped up, the water pressure in the system is uniform and quite comfortable.
In the next article, you will learn about connecting a hydraulic accumulator to a water supply system - the most common connection schemes.
delai-remont.com
A hydraulic accumulator, together with a pressure switch and a pump, is the most important part of the water supply for a summer cottage, a farm and other buildings. A properly configured and installed sensor can save the owner from most of the problems associated with water.
Connecting a pressure switch and installing additional equipment is not an easy process, it requires attention and specific knowledge in electronics and the operation of a pumping station with a hydraulic accumulator.
Water pressure sensor - electrical appliance, providing pressure control in the accumulator for the pumping station. It also monitors the pressure of the liquid in the pipeline and turns on or off the water supply to the accumulator tank.
This happens due to the short circuit of the wires. Exceeding the permissible threshold opens the contacts and the relay turns off the pump. Falling below the set level closes the device contact, including the water supply. You can manually adjust both the upper and lower thresholds.
Pressure switch operation diagram
Basic concepts of a pressure switch for a system with a hydraulic accumulator:
The main element of the pressure switch for the accumulator is a membrane that reacts to water pressure. It bends depending on the pressure and tells the mechanism how much the water pressure rises or falls in the pumping station. Bending switches contacts inside the relay. A special spring (which is tightened for adjustment) counteracts the pressure of water. The smaller spring determines the differential, that is, the difference between the lower and upper pressure thresholds.
Relays can be of two types. The first, power, directly acts on the pump contacts. The control type interacts with the station automation and through it affects the operation of the pump.
The hydraulic accumulator and pressure switch form a reliable system for providing water supply to any premises, outbuildings, fields and more. Automation for the pump is also a necessary part - thanks to it, it becomes as easy as possible to control the collection of water and quickly pump liquid into the tank and pipes.
Pumping station pressure switch device
You can always connect an additional accumulator, as well as relays, automation, sensors and pumps.
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Before connecting the equipment to the tank, you should check the functionality of the relay and adjust it. It is recommended to take readings with a mechanical pressure gauge. It is more points and is less prone to internal breakdowns, due to which its readings may not correspond to reality.
Next, instructions will follow on how to properly configure the pressure switch. First of all, it is necessary to familiarize yourself with the passport of the device, pump and accumulator tank in order to find out the pressure limits for these elements of the pumping station. Most advisable when buying familiarize yourself with these parameters in advance and adjust them to each other.
Since the sensor also determines the air pressure in the accumulator of the pumping station, you should also know the description of this equipment. This will ensure the correct connection of the accumulator. If you seriously think about how to choose a hydraulic accumulator, then you should pay attention to the following items.
The device is a metal tank for 19, 24, 50 liters and more, up to 1000. Tanks for 50 and 24 liters are the most common for summer cottages and small country houses... but it should be borne in mind that the total volume of the tank is not the volume of water... which can be contained in it. The air pressure inside the accumulator tank should be about 0.2-0.3 bar less than in the pipeline.
It is necessary to choose taking into account the settings of the snout pressure, the higher the settings and the more durable the device, the more water can be loaded into the tank. So in a pumping station with a tank of 24 liters, with a pressure Poff equal to 2.5, and Pvkl equal to 1.0, the volume of stored water will be a little over 9 liters. Special tables will allow you to correctly select the volume of the tank and the power of the pressure switch. Which one is best depends on the depth of the well, the length of the pipeline and the frequency and purpose of use.
Pumping stations with a hydraulic accumulator are pear and membrane. The first type has an internal rubber container, a "pear", into which air is pumped by a pump. The pear expands and presses on the water inside the tank, ensuring its flow through the pipes. How to pump air into a "pear"?
Accumulator pump
For this, a conventional air pump and an automotive nipple are used. In the membrane, it is arranged a little differently: water is pumped into a rubber container (from butyl), while air presses from the outside of the container. Air is located between the metal walls of the tank and the membrane with water.
The hydraulic accumulator is connected to the submersible pump through a system consisting of the following elements:
Before connecting to the network and the pumping system, the accumulator must be tested for pressure. Since the principle of operation of the pumping station is to build up pressure in the pipes using relays, pumps and a hydraulic accumulator, checking is an extremely important operation. Monitoring the level of air pressure, which will change over time due to wear, breakdowns, clogging, is the most difficult part of the pumping station's prevention.
Indicators are taken with a pressure gauge. It is necessary to remove the decorative cap and connect the pressure gauge to the nipple of the accumulator tank. A figure of 1.5 bar is generally considered acceptable.... however, even less is suitable - up to 0.8, depending on the type of tank. Thus, the accumulator for the pumping station is configured.
Set of tools for connecting a hydraulic accumulator
Adjusting the air pressure inside the tank will allow you to change the water pressure. The higher the water pressure, the faster the wear of the system. Low water pressure will not allow using a hydromassage shower or jacuzzi, but will significantly save money on repairs and replacement of parts of the hydraulic pumping system.
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The relay is connected to the mains with two pairs of contacts. The connection to the pipeline is made through a threaded hole, the standard diameter of which is 0.25 inches (6 millimeters). In order to independently provide the pumping station with a pressure switch, the following tools are required:
Diagram of connecting the accumulator to the water supply
Diagram of connecting a hydraulic accumulator to a pumping station with your own hands is as follows:
In this way, the pressure switch and the accumulator are connected to the pumping station.
Pressure switch- an element that controls the operation of a pumping station (for example AQUAJET or AQUAJET-INOX) and which makes it possible to work in automatic mode. The pressure switch has several characteristics:
Any pressure switch has factory settings and, as a rule, they are as follows:
Switch-on pressure: 1.5-1.8 bar
Switch-off pressure: 2.5-3 bar
Maximum shutdown pressure: 5 bar
How it all works:
Let's say the pumping station is connected (about this in the article "Preparing the DAB pumping station for work"), and the entire system is filled with water. After opening any tap (shower, sink, etc.) and the start of water intake, the pressure in the system will begin to drop smoothly (thanks to the membrane hydraulic tank), which can be easily tracked by the pressure gauge. All this time, water is supplied to the consumer from the hydraulic tank. When the “lower” switch-on pressure is reached (it can also be monitored by the pressure gauge at the moment the pump is switched on), the contacts inside the pressure switch will close and the pump will start. The rest of the time the water is drawn, the pump continues to work, supplying water directly to the consumer. After the completion of the water intake (all taps are closed), the pump still continues to work, only now the water is not supplied to the consumer, but is pumped into the hydraulic tank (since it has nowhere else to go) and the pressure gradually increases. When the shutdown pressure is reached (you can easily track it on the pressure gauge when the pump stops), the contacts inside the pressure switch open and the pump stops. At the next drawdown, the cycle is repeated. It's pretty simple.
But what if the factory settings of the pressure switch are not very comfortable? For instance:on the upper floors, the pressure drops very noticeably, or the water purification system requires at least 2.5 bar at the inlet, while the pump turns on only at 1.5-1.8 bar.
We write down the on and off pressure on the pressure gauge when the pump is running. Disconnect the power supply from the pump and remove the top cover of the pressure switch (usually by unscrewing one screw). You will see two screws, one larger at the top of the relay and a slightly smaller one below it. The top screw is responsible for the shutdown pressure and usually next to it there is a letter "P" and an arrow with the signs "+" and "-". Then we rotate the screw in the desired direction (if the cut-off pressure needs to be raised, then we rotate in the direction of the "+" sign, if lower, then in the direction of the "-" sign). How much to rotate? Make a turn (half a turn, one and a half - as much as you want). After that, we start the pump and see at what pressure it will turn off now. We remember, turn off the power to the pump, and turn the screw further, start the pump again and write down the new value, thus approaching the desired value.
The bottom screw is responsible for the difference between the switch-off pressure and the switch-on pressure. As a rule, “ΔP” is written next to it and there is an arrow with “+” and “- ”signs. Setting the differential pressure is the same as setting the switch-off pressure. There remains only one question, what should it be? The difference between the on and off pressure is usually 1.0-1.5 bar. Moreover, the higher the shutdown pressure, the greater this difference can be. For example, with factory settings P on = 1.6 bar, P off = 2.6 bar, the difference is 1 bar, this is just the standard value. If we want to change the factory settings and raise P off to 4 bar, then the difference can be made by 1.5 bar, i.e. P on must be set at 2.5 bar. It must be understood that the greater this difference, the higher the pressure drop in the system, which is not always comfortable. But at the same time, the pump will turn on less often, and more water will come from the hydraulic tank until the pump is turned on.
This is only true if the pump can supply the required pressure (see pump characteristic). Those. if the pump can only deliver 3.5 bar according to the passport (taking into account all types of losses), then setting the pressure switch to turn off 4 bar will give nothing. The pump simply will not be able to provide the required pressure and in this case it will work without stopping. And if you still need exactly 4 bar, then you will have to change the pump to a more powerful one.
Many do not think, or simply do not know that they also need to follow this. Unfortunately, yes, it is necessary, the service life of the diaphragm of the hydraulic tank, and ultimately, of the pump, directly depends on this.
We measure the air pressure in the air cavity of the hydraulic tank. Do it only on a hydraulic tank disconnected from the system- turn off the pump power, open any tap behind the pump and wait until the water comes out of the hydraulic tank. Or we measure it on an installation not yet connected to the water supply system. To do this, remove the decorative cap from the air nipple of the hydraulic tank and connect a regular car pressure gauge to it (to check the pressure in the tires of the car). We remember this pressure. (As a rule, on small hydraulic tanks with a capacity of up to 50 liters, this pressure will be equal to 1.5 bar). Now the most important rule : the air pressure in the hydraulic tank must be less than the pump start pressure by about 10%... Those. if the pump start pressure is 1.6 bar, the air pressure must be 1.4-1.5 bar. In most cases, these are the factory settings mentioned above. Those. buying a ready-made pumping station, you already have a fully configured system. But as soon as you have made changes to the factory settings of the pressure switch, you must always change the air pressure in the hydraulic tank. For example, if you set P on = 2.5 bar, P off = 3.5 bar, then it is necessary to raise the air pressure to a value of 2.2-2.3 bar.
By the way, even if you did not change anything in the factory settings, the air pressure must be monitored regularly, or at least checked once a year at the beginning. summer season... It is important that this pressure is constant, but if it has dropped slightly over the winter, it can always be raised with an ordinary car pump to the required level.
All these simple operations will not take much time, it is enough to pay attention to them once a year, especially since everything will pay off with a long and uninterrupted operation of the entire water supply system as a whole.
2007 DAB-SHOP.RU Setting the pressure switch and adjusting the air pressure in the accumulator.
When providing a structure with water from a well or a well, a hydraulic accumulator is mandatory, which is a container of a suitable volume. It is usually used in conjunction with a special pressure switch. For a hydraulic accumulator, it is a control device that allows you to reduce the number of pump operating cycles.
The main components of a pumping unit with a hydraulic accumulator
From the point of view of structural features, the relay is a small block equipped with special springs. The first of them defines the limit of the maximum pressure, and the second - the minimum. Adjustment is made using auxiliary nuts located inside the body.
Familiarization with the internal structure of the device
The working springs are connected to a diaphragm, which reacts to pressure surges in one way or another. Exceeding the maximum values leads to the compression of the metal spiral, and the decrease - to stretching. Thanks to such a device, in the contact group, the contacts are closed and opened at a certain moment.
Arrangement of the device in the general scheme
The principle of operation of the pressure switch for the accumulator is as follows. V membrane tank water enters until it is completely filled, which leads to an increase in pressure. When the maximum allowable level is reached, the pump stops pumping liquid.
As the water is consumed, the pressure in the system drops. When overcoming the lower level, the equipment will turn on again. The on and off cycles are repeated over and over as long as the system elements are in working order.
Connection diagram with a drain valve in the system
A relay usually consists of the following elements:
The pressure gauge can be used to visually determine the pressure
Addition! When working on the movable part of the platform, adjusting springs press against the force generated by the piston. Turning on and off the pump depends on the degree of their compression.
Any accumulator inside has a rubber membrane that divides the space into two chambers. One of them contains water, and the other contains compressed air. Thanks to this structure, it is possible to create the necessary pressure when filling and emptying the rubber container.
The device of the hydraulic accumulator is clearly shown
To extend the service life of the device, you need to know how much pressure should be in the accumulator. It largely depends on the indicators set to turn on the pump. The pressure inside the tank should be about 10 percent less.
Checking the pressure in the tank
For example, if the switch-on is set to 2.5 bar and the switch-off is set to 3.5 bar, then the air pressure inside the vessel should be set to 2.3 bar. Ready-made pumping stations usually do not require additional adjustment.
Although many people find the process of installing and adjusting the device difficult to understand, in fact it is not. Each owner of a country house with a well or well can independently connect and configure the device to provide the structure with water.
One of the schemes for connecting the accumulator to the system
The finished product interacts with both plumbing and electrical system building. When the contacts are closed and opened, liquid is supplied or blocked. The pressure device is installed permanently, since there is no need to move it from place to place.
The purpose of the contact groups of the device is indicated
It is recommended to allocate a separate electricity line for connection. Directly from the shield, a cable with a copper core cross-section of 2.5 square meters should be laid. mm. It is not recommended to connect wires without grounding, because the combination of water and electricity is fraught with latent danger.
Illustrative diagram for self-connecting the relay
The cables should be passed through the holes located on the plastic housing and then connected to the terminal block. It contains terminals for phase and zero, ground. wires for the pump.
Note! Electrical work must be carried out disconnected from the network. During installation, the observance of the general rules technical safety.
To adjust the device, an accurate pressure gauge is required to determine the pressure without errors. Based on its readings, you can make a relatively quick setting. By turning the nuts located on the springs, the pressure can be decreased or increased. During setup, you must adhere to a certain sequence of actions.
Work is underway to configure the device
So, the pressure switch for the accumulator is adjusted as follows.
Device adjusting nuts are shown
Note! Before you set up the pressure switch of the accumulator, you need to remember a simple truth. The minimum permissible difference between the maximum and minimum value should not be less than 1 atmosphere.
Relay models can be purchased relatively inexpensively. Usually, the cost of products does not exceed one thousand rubles. However, electronic counterparts can have a higher price, as they allow more precise tuning. The table shows the models of some manufacturers and their cost.
Presented pressure switch Dzhileks RDM-5
Note! On average, for a family of 4-8 people, as a rule, a hydraulic accumulator with a capacity of 50 liters is enough. With a smaller number of people living, a container with a volume of 24 liters is purchased, and with a larger number - 100 liters.
Hydroaccumulator Dzhileks, containing 24 l
Since the accumulator without a pressure switch, which is a control device, is not capable of functioning, special attention was paid to the installation and adjustment of this particular device. At correct adjustment products are quite realistic to extend the operating period of the main equipment.
Self-installation and adjustment of the water pressure switch for the pump 
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We offer for sale modern automation units for pumps manufactured by Dzhileks. Before buying an automatic device, we suggest that you familiarize yourself with its characteristics.
The automation unit (automatic device) allows you to automate the operation of the electric pump, start it when the pressure drops (when the tap is opened) and stop it when the water flow in the water supply system stops (when the tap is closed). In addition, the automation unit protects the pump from running without water ("dry running").
The automation unit is designed for pumping clean water that does not contain solid particles. In the presence of solid particles, it is necessary to install a filter at the entrance to the automation unit. The presence of a pressure gauge provides visual control of the pressure in the water supply system.
The automation unit starts the electric pump within 20-25 seconds after connecting to the mains. Subsequent starts of the electric pump occur when the starting pressure is reached, under the influence of opening the valve. Unlike systems with a pressure-tank switch, the condition for stopping the electric pump is not dictated by the achievement of a certain pressure in the system, but is determined by a decrease in flow to minimum values. As soon as the automation unit detects this condition, it stops the electric pump with a delay in the interval of 7 + 15 seconds, the timing logic is aimed at reducing the frequency of operation of the electric pump in low flow conditions.
The automation unit can be used in conjunction with the RDM-5 pressure switch
1. The pressure gauge can be mounted on one of the two sides of the automation box using an O-ring and two fixing screws. Having chosen a convenient location of the pressure gauge, plug the hole on the opposite side with a screw without using any seal. Install the automation unit in a strictly vertical position at any point located between the pump inlet and the first draw-off point (tap) so that the inlet (1 ″ external thread) is connected to the direction of the water flow out of the pump, and the side outlet (external thread 1 ″) corresponded to the direction of flow in the pipeline. Make sure that the hydraulic connections are completely tight. In the case of using an electric pump with a maximum pressure of over 10 bar, it is necessary to install a pressure reducer at the inlet to the automation unit.
2.For the electrical connection, follow the diagram shown on the cover of the circuit board. When using the automation unit with three-phase or single-phase electric pumps with a switching current of more than 10 A, use an electromagnetic starter. It is necessary to use an electric cable with a thermal resistance of at least 99 ° C.
3. The starting pressure is set to 1.5 bar, which is optimal value for most use cases. This value can be changed using the adjusting screw located on the top of the automation box labeled "+" and "-".
ATTENTION: If the level of the water to be filled is lower than the level at which the pump is installed, it is imperative to use the bottom check valve on the suction pipe.
1. Before starting the operation, completely fill the suction pipe and the electric pump with water and start the latter, thereby giving power to the “NETWORK” automation unit. After stopping the electric pump, open the tap located at the highest point.
2. The setting is correct if the electric pump runs continuously and there is a regular flow of water at the outlet of the tap. In the absence of water flow, it is possible to prolong the operation of the electric pump by holding down the "RESET" button, for an interval exceeding the timekeeping time of the automation unit. If, in this case, there is no flow, you should turn off the power supply to the electric pump, and repeat the procedure starting from item 1.
The red PROTECTION indicator lights up when the electric pump is switched off, signaling the danger of dry running. After making sure that the suction line is filled with water, start the electric pump by pressing the "RESET" button.
www.agrovodcom.ru
There are various means of automation for pumps, among which there are dry-running blockers, water pressure switches, electronic units, sensors, etc. As a rule, electronics operate in conjunction with additional equipment (hydraulic accumulator, float switch, etc.). In this case, the regulation of the operation of the pumping group can be carried out both by pressure and by flow. An important component is a pressure gauge, which provides visual control of the parameters of the water supply network.
Today, several generations of pump automation are distinguished. The latest electronic devices are considered the most efficient due to high-tech equipment, expanded functionality and more subtle settings.
General working principle:
www.jeelex.ru
In private houses, where the water supply is not connected, the issue of providing drinking quality water is solved in 2 ways:
Water is supplied to the house using a pump of the required power. But the value of the water pressure during its operation is too high to connect the pump unit directly to the internal water supply networks. Therefore, an intermediate tank with a membrane is installed in the house - a hydraulic accumulator, and the required pressure in the network is maintained by the pressure switch RDM 5. The device allows you to automate the process of supplying water to autonomous systems ah water supply.
The device consists of a brass body with fittings for connection to the water supply network, spring valves and an electrical relay. Outside, the elements are closed with a plastic cover. The scheme of operation of the pressure switch RDM 5 is as follows:
As a rule, the RDM 5 device is equipped with ready-made pumping stations, consisting of a pump, a water accumulator tank and a control relay itself. The station is set up at the factory and is completely ready for operation; all that remains is to connect it to the pipe and the mains. But finished products are not suitable for everyone for the following reasons:
In these cases, the automatic water supply system will have to be assembled from separate elements, and the pressure switch must be adjusted accordingly, coordinating its operation with the storage tank. Before purchasing and connecting a device, it is recommended to study its technical characteristics:
If any of technical characteristics the RDM 5 relay does not suit you, you will have to look for another regulator. But practice shows that the parameters of this device meet the requirements of the overwhelming number of autonomous water supply systems.
The pressure switch is set up after the installation of the internal and external water supply network of the house and connection to the electrical network.
External and internal piping connections must be verified by tests so that subsequent leaks do not interfere with the adjustment process. Due to the leakage of the joints, the pressure before or after the pump will spontaneously decrease, which will also affect the operation of the relay.
Before adjusting, you should determine the required head value. In order to supply water to all points of water intake located on different floors, it is necessary to provide the necessary pressure in the accumulator. The efforts of the tank membrane should be sufficient to push the entire volume of water to the required height and overcome all local resistance... At home, this pressure value is most often determined experimentally.
The calculation is simple: 1 m of the lifting height is equal to 10 m of the horizontal section and corresponds to a pressure of 0.1 bar. The farthest branch of the water supply is taken into account. Having approximately determined the required pressure, it is necessary to create such a pressure from the side of the air chamber of the accumulator. To do this, remove the plastic cap from the spool (usually located at the end of the tank) and pump the air chamber with a conventional automobile pump, controlling the pressure with a pressure gauge.
As a result of the settings, the difference between the lower and upper limits should not be less than 1 bar. Practice shows that the optimal pressure drop is about 1.5 bar, then the pump will not turn on too often. At the end of the adjustment, do not rush to put the cover back in place, follow the system for 1 day. Minor adjustments may be needed.
pikucha.ru
Despite the fact that the relay regulates the pressure of the water pressure, its mechanisms provide for electrical components. Under water pressure, two contacts are closed, this is how the connection to the mains is carried out:
The principle of operation is not complicated, but consumers have some difficulties when the pressure switch is adjusted, the lower and upper limits are set.
The pressure switch setting by manufacturers in factories is not always accurate or not suitable for local operating conditions. But the design is made so that each owner can easily adjust the necessary parameters himself. In private houses, pumps at the water supply point in front of the accumulator must create a head pressure of at least 1.4 atmospheres. Otherwise, the adjustment does not make sense, the contacts will not close, and the pump will not turn on. There must be a pressure gauge at the connection point, according to its readings, the magnitude of the pressure is judged:
Relay connection diagram to expansion tank
Under the housing cover there are large and small nuts with springs, when the large nut rotates clockwise, the fixing spring is compressed, the upper limit increases. Decrease the upper limit by turning the large nut counterclockwise.
The operating manual specifies that the lower limit pressure should ideally be 0.2 atmospheres higher than the pressure in the expansion tank. With such an installation ratio, the number of starts for the electric pump is optimal, which significantly extends the service life of the pump and relay. The difference can be corrected with a small bolt with a spring or by changing the pressure in the accumulator, pump up or bleed air. Correctly installed pressure switches RDM 5 "Dzhileks" will make the pump mode more economical, reduce power consumption and last a long time.
/ Automation unit for the pump
We offer for sale modern automation units for pumps manufactured by Dzhileks. Before buying an automatic device, we suggest that you familiarize yourself with its characteristics.
The automation unit (automatic device) allows you to automate the operation of the electric pump, start it when the pressure drops (when the tap is opened) and stop it when the water flow in the water supply system stops (when the tap is closed). In addition, the automation unit protects the pump from running without water ("dry running").
The automation unit is designed for pumping clean water that does not contain solid particles. In the presence of solid particles, it is necessary to install a filter at the entrance to the automation unit. The presence of a pressure gauge provides visual control of the pressure in the water supply system.
The automation unit starts the electric pump within 20-25 seconds after connecting to the mains. Subsequent starts of the electric pump occur when the starting pressure is reached, under the influence of opening the valve. Unlike systems with a pressure-tank switch, the condition for stopping the electric pump is not dictated by the achievement of a certain pressure in the system, but is determined by a decrease in flow to minimum values. As soon as the automation unit detects this condition, it stops the electric pump with a delay in the interval of 7 + 15 seconds, the timing logic is aimed at reducing the frequency of operation of the electric pump in low flow conditions.
The automation unit can be used in conjunction with
1. The pressure gauge can be mounted on one of the two sides of the automation box using an O-ring and two fixing screws. Having chosen a convenient location of the pressure gauge, plug the hole on the opposite side with a screw without using any seal. Install the automation unit in a strictly vertical position at any point located between the pump inlet and the first draw-off point (tap) so that the inlet (1 "external thread) is connected to the direction of the water flow out of the pump, and the side outlet (external thread 1 ") corresponded to the direction of flow in the pipeline. Make sure that the hydraulic connections are completely tight. In the case of using an electric pump with a maximum pressure of over 10 bar, it is necessary to install a pressure reducer at the inlet to the automation unit.
2.For the electrical connection, follow the diagram shown on the cover of the circuit board. When using the automation unit with three-phase or single-phase electric pumps with a switching current of more than 10 A, use an electromagnetic starter. It is necessary to use an electric cable with a thermal resistance of at least 99 ° C.
3. The starting pressure is set to 1.5 bar, which is the optimal value for most applications. This value can be changed using the adjusting screw located on the top of the automation box labeled "+" and "-".
ATTENTION: If the level of the water to be filled is lower than the level at which the pump is installed, it is imperative to use the bottom check valve on the suction pipe.
1. Before starting the operation, completely fill the suction pipe and the electric pump with water and start the latter, thereby giving power to the “NETWORK” automation unit. After stopping the electric pump, open the tap located at the highest point.
2. The setting is correct if the electric pump runs continuously and there is a regular flow of water at the outlet of the tap. In the absence of water flow, it is possible to prolong the operation of the electric pump by holding down the "RESET" button, for an interval exceeding the timekeeping time of the automation unit. If, in this case, there is no flow, you should turn off the power supply to the electric pump, and repeat the procedure starting from item 1.
The red PROTECTION indicator lights up when the electric pump is switched off, signaling the danger of dry running. After making sure that the suction line is filled with water, start the electric pump by pressing the "RESET" button.
Voltage - 230-240 V 50/60 Hz
Maximum switched current - 10 (6) A
Starting pressure - 1.5 + 3.5 atm.
Maximum water flow - 80 l / min
The maximum allowable pressure is 10 atm.
Maximum water temperature - 60 ° С
Connecting dimensions - 1 "
Protection degree - 1P65
ATTENTION:
A non-return valve located between the electric pump and the automation unit, as well as after the automation unit, may cause the automation unit itself to malfunction.
Starting pressure adjustments must be carried out by competent personnel in accordance with all safety regulations.
This operation is aimed at changing the starting pressure for turning on the electric pump.
The shutdown pressure of the automation unit is not adjustable, and corresponds to the maximum pressure generated by the electric pump.
We offer for sale modern automation units for pumps manufactured by Dzhileks. Before buying an automatic device, we suggest that you familiarize yourself with its characteristics.
The automation unit (automatic device) allows you to automate the operation of the electric pump, start it when the pressure drops (when the tap is opened) and stop it when the water flow in the water supply system stops (when the tap is closed). In addition, the automation unit protects the pump from running without water ("dry running").
The automation unit is designed for pumping clean water that does not contain solid particles. In the presence of solid particles, it is necessary to install a filter at the entrance to the automation unit. The presence of a pressure gauge provides visual control of the pressure in the water supply system.
The automation unit starts the electric pump within 20-25 seconds after connecting to the mains. Subsequent starts of the electric pump occur when the starting pressure is reached, under the influence of opening the valve. Unlike systems with a pressure-tank switch, the condition for stopping the electric pump is not dictated by the achievement of a certain pressure in the system, but is determined by a decrease in flow to minimum values. As soon as the automation unit detects this condition, it stops the electric pump with a delay in the interval of 7 + 15 seconds, the timing logic is aimed at reducing the frequency of operation of the electric pump in low flow conditions.
The automation unit can be used in conjunction with the RDM-5 pressure switch
1. The pressure gauge can be mounted on one of the two sides of the automation box using an O-ring and two fixing screws. Having chosen a convenient location of the pressure gauge, plug the hole on the opposite side with a screw without using any seal. Install the automation unit in a strictly vertical position at any point located between the pump inlet and the first draw-off point (tap) so that the inlet (1 ″ external thread) is connected to the direction of the water flow out of the pump, and the side outlet (external thread 1 ″) corresponded to the direction of flow in the pipeline. Make sure that the hydraulic connections are completely tight. In the case of using an electric pump with a maximum pressure of over 10 bar, it is necessary to install a pressure reducer at the inlet to the automation unit.
2.For the electrical connection, follow the diagram shown on the cover of the circuit board. When using the automation unit with three-phase or single-phase electric pumps with a switching current of more than 10 A, use an electromagnetic starter. It is necessary to use an electric cable with a thermal resistance of at least 99 ° C.
3. The starting pressure is set to 1.5 bar, which is the optimal value for most applications. This value can be changed using the adjusting screw located on the top of the automation box labeled "+" and "-".
ATTENTION: If the level of the water to be filled is lower than the level at which the pump is installed, it is imperative to use the bottom check valve on the suction pipe.
1. Before starting the operation, completely fill the suction pipe and the electric pump with water and start the latter, thereby giving power to the “NETWORK” automation unit. After stopping the electric pump, open the tap located at the highest point.
2. The setting is correct if the electric pump runs continuously and there is a regular flow of water at the outlet of the tap. In the absence of water flow, it is possible to prolong the operation of the electric pump by holding down the "RESET" button, for an interval exceeding the timekeeping time of the automation unit. If, in this case, there is no flow, you should turn off the power supply to the electric pump, and repeat the procedure starting from item 1.
The red PROTECTION indicator lights up when the electric pump is switched off, signaling the danger of dry running. After making sure that the suction line is filled with water, start the electric pump by pressing the "RESET" button.
www.agrovodcom.ru
The Jileks Crab automation unit is a device that automates the operation of an electric pump. It turns on the system when the pressure drops (the valve opens), and turns it off when the flow stops (the valve closes). Automation also consists in protecting the pumping station when it is "idle" - working without water, on "dry running".
Automatic Jileks block is applied only to clean water, which does not contain solid elements. If the latter are available, then a filter element must be purchased separately for the automation unit. And if you mount a pressure gauge, then the pressure can be monitored visually.
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The Dzhileks 9001 automatic unit turns on 30 seconds after connecting to the mains. Then it shuts down and goes to sleep. Further switching on of the device occurs when the pressure changes - opening and closing the valve.
As soon as the pressure drops to minimum permissible norm, the automatic control element will turn off the pump. So the safety and efficiency of the device is significantly extended.
After lowering the pressure to the minimum permissible level, the system does not turn off immediately, but after several tens of seconds (usually from five to twenty, depending on the specific model). The delay in turning off the pumps is needed so that, with a weak water pressure, it does not systematically turn off. This helps to extend the life of the system.
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To automate pump control, you need to purchase the appropriate additional components for it (depending on your needs), and connect them in the following sequence:
Important! When the level of the incoming water is below the level at which it is installed pumping system, it is imperative to install a non-return bottom valve on the inlet pipe.
We start the automation as follows:
When the "Protection" LED on the automation unit lights up, and the pump itself is turned off, this may indicate the danger of idle operation of the system. This is how press control works.
Recheck all systems. If everything is in order, drain the water from the incoming system and refill it. Then click the "Restart" button.
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Vibrating or any other type of pump can be additionally equipped with automation systems. But, they have different parameters, properties, etc. Which ones should you buy?
Technical indicators (optimal):
Important! The valve located in the pipe section between the automatic / pumping systems and the valve running on the outlet pipe of the automatic unit are the culprits of equipment malfunction.
The minimum working pressure of the equipment must not be changed by yourself. This should be done by electricians who have experience, are familiar with regulatory documents and comply with safety standards.
The maximum working pressure is not automatically regulated. It corresponds to the indicator of the electric pump.
nasosovnet.ru
Despite the fact that the relay regulates the pressure of the water pressure, its mechanisms provide for electrical components. Under water pressure, two contacts are closed, this is how the connection to the mains is carried out:
The principle of operation is not complicated, but consumers have some difficulties when the pressure switch is adjusted, the lower and upper limits are set.
The pressure switch setting by manufacturers in factories is not always accurate or not suitable for local operating conditions. But the design is made so that each owner can easily adjust the necessary parameters himself. In private houses, pumps at the water supply point in front of the accumulator must create a head pressure of at least 1.4 atmospheres. Otherwise, the adjustment does not make sense, the contacts will not close, and the pump will not turn on. There must be a pressure gauge at the connection point, according to its readings, the magnitude of the pressure is judged:
Relay connection diagram to expansion tank
Under the housing cover there are large and small nuts with springs, when the large nut rotates clockwise, the fixing spring is compressed, the upper limit increases. Decrease the upper limit by turning the large nut counterclockwise.
The operating manual specifies that the lower limit pressure should ideally be 0.2 atmospheres higher than the pressure in the expansion tank. With such an installation ratio, the number of starts for the electric pump is optimal, which significantly extends the service life of the pump and relay. The difference can be corrected with a small bolt with a spring or by changing the pressure in the accumulator, pump up or bleed air. Correctly installed pressure switches RDM 5 "Dzhileks" will make the pump mode more economical, reduce power consumption and last a long time.
domelectrik.ru
In private houses, where the water supply is not connected, the issue of providing drinking quality water is solved in 2 ways:
Water is supplied to the house using a pump of the required power. But the value of the water pressure during its operation is too high to connect the pump unit directly to the internal water supply networks. Therefore, an intermediate tank with a membrane is installed in the house - a hydraulic accumulator, and the required pressure in the network is maintained by the pressure switch RDM 5. The device allows you to automate the process of water supply in autonomous water supply systems.
The device consists of a brass body with fittings for connection to the water supply network, spring valves and an electrical relay. Outside, the elements are closed with a plastic cover. The scheme of operation of the pressure switch RDM 5 is as follows:
As a rule, the RDM 5 device is equipped with ready-made pumping stations, consisting of a pump, a water accumulator tank and a control relay itself. The station is set up at the factory and is completely ready for operation; all that remains is to connect it to the pipe and the mains. But finished products are not suitable for everyone for the following reasons:
In these cases, the automatic water supply system will have to be assembled from separate elements, and the pressure switch must be adjusted accordingly, coordinating its operation with the storage tank. Before purchasing and connecting a device, it is recommended to study its technical characteristics:
If according to some of the technical characteristics of the RDM 5 relay does not suit you, then you will have to look for another regulator. But practice shows that the parameters of this device meet the requirements of the overwhelming number of autonomous water supply systems.
The pressure switch is set up after the installation of the internal and external water supply network of the house and connection to the electrical network.
External and internal piping connections must be verified by tests so that subsequent leaks do not interfere with the adjustment process. Due to the leakage of the joints, the pressure before or after the pump will spontaneously decrease, which will also affect the operation of the relay.
Before adjusting, you should determine the required head value. In order to supply water to all points of water intake located on different floors, it is necessary to provide the necessary pressure in the accumulator. The efforts of the tank membrane should be sufficient to push the entire volume of water to the required height and overcome all local resistances. At home, this pressure value is most often determined experimentally.
The calculation is simple: 1 m of the lifting height is equal to 10 m of the horizontal section and corresponds to a pressure of 0.1 bar. The farthest branch of the water supply is taken into account. Having approximately determined the required pressure, it is necessary to create such a pressure from the side of the air chamber of the accumulator. To do this, remove the plastic cap from the spool (usually located at the end of the tank) and pump the air chamber with a conventional automobile pump, controlling the pressure with a pressure gauge.
As a result of the settings, the difference between the lower and upper limits should not be less than 1 bar. Practice shows that the optimal pressure drop is about 1.5 bar, then the pump will not turn on too often. At the end of the adjustment, do not rush to put the cover back in place, follow the system for 1 day. Minor adjustments may be needed.
pikucha.ru
The main element of the company's pumping process automation is the Jileks automation unit. Such a device is connected directly to the pumping device and reacts to the pressure level in the system.
The Jileks block consists of a plastic case with a metal cover. Inside the body there is a spring, an electronic unit, complete with a pressure switch and a movable mechanism that closes the contacts when the pressure drops. For external control over the operation of the device, a pressure gauge is mounted on the side surface of the unit.
The device is designed to work on the basis of a pumping station or other surface pump pumping clean water. Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.
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Dzhileks automatic equipment functions independently from the usual electrical network. After 30 seconds after installing and connecting the unit, it turns on and works within a few seconds. Then the device turns off and is activated only in case of a change in the pressure in the line.
When the tap at the point of water consumption is opened, the pressure in the pipe begins to decrease rapidly. In this case, the unit immediately turns on and, when the minimum pressure indicator is reached, activates the electric pump. The device pumps water until the pressure is equalized again (when the tap is closed). After the tap is closed, the device works for another 5-20 seconds, continuing to pump water into the line. This measure is a precaution in case the pressure in the system drops below normal and the device is not able to track the pressure level.
to the menu
to the menu
Dzhileks 9001 automatic equipment is installed in the supply line complete with additional equipment. Therefore, an important step is the correct installation and configuration of all components. The installation of the automatic control unit from Dzhileks is carried out in the following order:
If necessary, the supply line is supplemented with filters for water purification and a receiver to equalize the pressure in the system.
After all the components are installed in the line, it is necessary to check the device. For this, the pump inlet through the pipeline is filled with liquid and the pump is turned on. One of the indicators on the unit immediately lights up. This indicates that there is contact between the unit and the pumping device. Within a few tens of seconds, the device works and then turns off.
After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then the topmost one is desirable). However, there are two options:
Automation from Dzhileks is a universal device. With its help, the operation of pumping devices from various manufacturers can be regulated. Regarding the principle of operation, such a pressure equalization mechanism is installed on a vibration, centrifugal, vortex, screw pump.
The device works most effectively in combination with pumping devices that meet the following characteristics:
In addition to the automation unit, the company also produces less popular automation options for pumping equipment. One of these options is the installation of Jilex Crab. The device is responsible for a stable pressure in the supply line, starts and stops the pump if necessary. In addition, the filter element removes solids from the stream.
Jilex Crab consists of the following components:
The device operates on the basis of a standard 220 V electrical network. Suitable for simultaneous connection of 2-3 water intake points. An adjustable relay allows you to set, even before starting work, the pressure level that the device will maintain. Like the previous type of devices, the Crab 50 is a universal device and is suitable for connection to borehole pumps of any manufacturer.
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A simpler option for automating a pumping station is to install a special relay RDM-5 on it. The compact device is installed in the pipeline and connected to the pumping unit using an electric cable. The wire is fixed to the relay contacts.
The principle of operation of the device is as follows. The device reacts to the pressure level in the line. If the indicator is below the set value, the contacts are connected, the current is supplied to the water intake point and the liquid fills the pipeline until the pressure returns to normal. When the pressure level returns to normal (this indicator is also set by the user), the contacts diverge. The supply of current to the downhole apparatus is interrupted and it is turned off.
The minimum and maximum indicators at which the pumping device is triggered are set by the user. They can be adjusted using two nuts that fix the degree of spring tension. A larger nut, when turned counterclockwise, sets the maximum pressure, a smaller nut, when rotating, allows you to adjust the difference between the maximum and minimum value.
RDM-5 is designed to be used exclusively in water. The operating voltage for the device is 220-230 V. The temperature of the pumped liquid is 0-40 degrees. The relay is fixed to the ¼ ”pipeline. A prerequisite for using the RDM-5 is a high-quality grounding.
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For drainage, sewage and surface water pumps, the cheapest and most practical automation method is a float switch. According to the scope of use, such devices are divided into light and heavy. Drainage models are equipped with a light float, heavy floats are installed at water supply stations and water pumps.
The structure consists of an electric cable 3.5, 8 or 10 m long and a plastic float mechanism. Inside the float there are two contacts, a switch lever and a ball that changes the position of the lever. By the number of wires, two and three-wire floats are distinguished.
In the version with two wires, they are directly connected to the contacts of the float. When such a mechanism rises with the water level to the designated level, the lever presses on the contacts, they close and supply energy to the pump.
In models with three wires, the ability to turn on the fence point in the upper and lower positions is supported. To do this, one wire goes to one of the contacts, and the other two wires, depending on the position, go to the second contact.
The principle of operation of such a float mechanism is that the device automatically turns on the pump when the water level rises to the set value. In the case of a two-wire device, the float, on the contrary, opens the contacts and turns off the device when the water falls below normal.
byreniepro.ru
There are various means of automation for pumps, among which there are dry-running blockers, water pressure switches, electronic units, sensors, etc. As a rule, electronics operate in conjunction with additional equipment (hydraulic accumulator, float switch, etc.). In this case, the regulation of the operation of the pumping group can be carried out both by pressure and by flow. An important component is a pressure gauge, which provides visual control of the parameters of the water supply network.
Today, several generations of pump automation are distinguished. The latest electronic devices are considered the most efficient due to high-tech equipment, advanced functionality and more sophisticated settings.
General working principle:
www.jeelex.ru
Structurally, the relay is made in the form of a compact block with springs of maximum and minimum pressure, the tension of which is regulated by nuts. The diaphragm, connected to the springs, reacts to changes in the pressure force. When the minimum value is reached, the spring is weakened, and when the maximum level is reached, it is compressed more. The impact on the springs causes the relay contacts to open (close), switching off or on the pump.
The presence of a relay in the water supply system allows ensuring constant pressure and the required water pressure in the system. The pump is automatically controlled. Correctly set levels of minimum and maximum pressure ensure its periodic shutdown, which contributes to a significant increase in trouble-free service life.
The sequence of operation of the pumping station under the control of the relay is as follows:
The main parameters of the relay:
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In the process of assembling the pumping station, special attention is paid to setting the pressure switch. The ease of operation of the water supply system, as well as the terms of trouble-free service of all components of the device, depends on how correctly its limit levels are set.
At the first stage, you need to check the pressure that was created in the tank during the manufacture of the pumping station. Typically, the factory setting is set to 1.5 atmospheres and off to 2.5 atmospheres. Check this with an empty tank and a pumping station disconnected from the mains. It is recommended to check with an automotive mechanical pressure gauge. It is housed in a metal case, so measurements are more accurate than using electronic or plastic gauges. Their readings can be affected by both the room temperature and the battery charge level. It is desirable that the scale limit of the pressure gauge be as small as possible. Because on a scale of, say, 50 atmospheres, it will be very difficult to accurately measure one atmosphere.
To check the pressure in the tank, you need to unscrew the cap that closes the spool, connect the pressure gauge and take a reading on its scale. The air pressure should be checked periodically thereafter, eg once a month. In this case, water must be completely removed from the tank by turning off the pump and opening all the taps.
Another option is also possible - to carefully monitor the pump shutdown pressure. If it increases, this will mean a decrease in air pressure in the tank. The lower the air pressure, the more water supply can be created. However, the pressure spread from a completely filled to practically empty tank is large, and all this will depend on the preferences of the consumer.
Having chosen the desired operating mode, you need to install it, bleeding off excess air for this, or pump it up additionally. It must be borne in mind that you should not reduce the pressure to a value less than one atmosphere, and also pump it over too much. Due to the small amount of air, a rubber container filled with water inside the tank will touch its walls and wipe off. And excess air will not make it possible to pump a lot of water, since a significant part of the volume of the tank will be occupied by air.
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In pumping stations, which are delivered assembled, the pressure switch is pre-configured for the optimal option. But when installing it from various elements at the place of operation, the relay setting must be carried out without fail. This is due to the need to ensure an effective relationship between the relay settings and the tank volume and pump head. In addition, it may be necessary to change the initial setting of the pressure switch. The procedure should be as follows:
In practice, the power of the pumps is chosen such that it does not allow pumping the tank to the extreme limit. Usually the cut-off pressure is set a couple of atmospheres above the cut-off threshold.
It is also allowed to set limit pressure levels that differ from the recommended values. In this way, you can set your own version of the operating mode of the pumping station. Moreover, when setting the pressure difference with a small nut, one must proceed from the fact that the starting point of reference should be the lower level set by the large nut. The upper level can only be set within the limits for which the system is designed. In addition, rubber hoses and other plumbing fixtures also withstand pressure no higher than the design pressure. All this must be taken into account when installing the pumping station. In addition, the excessive pressure of water from the tap is often completely unnecessary and uncomfortable.
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Adjustment of the pressure switch is practiced in cases where it is necessary to set the levels of the upper and lower pressures to the specified values. For example, you want to set the upper pressure to 3 atmospheres, the lower - 1.7 atmospheres. The adjustment process is as follows:
If high pressure is set for shutdown and low pressure for shutdown, the tank is filled with a large amount of water and there is no need to turn on the pump frequently. Inconvenience occurs only due to the large pressure drop when the tank is full or almost empty. In other cases, when the pressure range is small, and the pump often has to be pumped up, the water pressure in the system is uniform and quite comfortable.
In the next article, you will learn about connecting a hydraulic accumulator to a water supply system - the most common connection schemes.
It is not always possible to repair the Jileks pump on your own, but there are a number of minor malfunctions, for the sake of which it is not necessary to contact service center... Homeowners using pumping units of this brand at home, it does not hurt to know how to act in the event of a particular breakdown. After all, it is extremely uncomfortable to do without water supply for a long time, it is better to try to disassemble and repair the apparatus of the Jilex company with your own hands. If this fails, you can always take it to specialists.
The main thing is not to cause even more damage to the unit when trying to repair, so you need to act carefully and start by finding out the causes of the malfunction. To provide water supply to private households, 2 types of pumping devices are used:
The former are used to raise water from deep wells or wells with a depth of 20 m and to supply water to the interior of the dwelling. They are constantly under water, being submerged to the bottom of the well. Surface stations are located outside, in a technical room or a caisson, and are installed to pump water from wells or tanks, the depth of which does not exceed 20 m.
Before you think you're faulty yourself submersible pump Jileks, it is advisable to make sure that the well is supplying enough water. If its performance has decreased due to various reasons (for example, silting), then when the level falls, the unit's automation will not allow it to turn on “dry”. Therefore, periodic failures household appliance they speak, most likely, about the lack of water resources.
The second point: it is impossible to determine the breakdown and its cause, when the unit is submerged in the well, it will have to be raised to the surface in any case. An exception is the failure of the circuit breaker through which electricity is supplied to the Vodomet pump. In this situation, you will not have to extract it.
Possible reasons for the failure of the downhole unit are as follows:
The first 3 reasons can be found and eliminated on your own. If the unit, when turned on, emits a hum, but does not swing, and when you touch it, an electric shock follows, then the capacitor has burned out or dried out. As for replacing bearings, brushes or rewinding the motor, you will have to contact a service center for this.
These complex devices are quite reliable in operation. The first problems may arise 4-5 years after the start of work, provided that there were no emergency situations in which the pump had to rotate the impeller without water. And then these malfunctions rarely occur in the engine of the unit, but appear in other elements of the station:
The most common malfunction leading to complete failure of the pump motor is a malfunction check valve... It starts to let water through due to wear or clogging, the supply pipe is emptied, and the impeller rotates "dry". Also, the rubber "bulb" (membrane) installed in the accumulator tank may lose its tightness. There are also problems with the pressure switch, then the unit does not turn on when there is a water draw in the house.
Malfunctions associated with the interruption of the supply of electricity to the pump are characterized by the absence of signs of "life" when the power is turned on.
To check the continuity of the electrical circuit, you must use a continuity tester or a multimeter in resistance measurement mode. If the power cable is intact, then you need to go to the inside of the unit, for which it will have to be disassembled.
For disassembly, you will need a standard set of plumbing tools, available in every home and including:
As an example, consider the process of disassembling a Jileks borehole pump model Vodomet 60/52. The sequence of work is as follows:
Now that the pump is disassembled, it is possible to check all the electrical circuits, right down to the motor windings. In a situation where the body of a household appliance is shocked, the capacitor must be replaced. Carefully examine the condition of the plastic impellers, cups and spacers. When worn out, they must be replaced, for which you will have to buy or order an appropriate repair kit. It makes no sense to put worn parts back, because when the shaft rotates, they still cannot create the necessary pressure in the water supply network.
Unlike submersible pumping devices, in the Jileks Jumbo pumping station, the accumulator and pressure switch most often fail. The brushes of the engine may also wear out, but it is better to contact a service technician to replace them. Burnout of the windings is indicated by the smell of melted insulation and plastic, the problem will most likely be solved only by replacing the motor.
The rubber "bulb" in the reservoir of the hydraulic accumulator cannot be replaced, and in case of loss of tightness, the entire reservoir must be replaced. To check, it is enough to remove the accumulator by disconnecting it from the station, unscrew the side plug and the spool, and then fill it with water from the injection side. If water runs through the spool, the battery should be replaced. They do the same with a pressure switch that cannot be adjusted - they change the entire element.
General working principle:
When choosing a pump automation, consider the following technical characteristics:
Specifications Description
Not a single autonomous water supply network can do without pumping units. They create the required pressure, providing fluid supply to the draw-off points. However, the use of water will become really convenient only if there is an automation for the pump. This functional block will take the quality of water management to a new level. As a result, the operation of the equipment will be optimized.
High-tech and functional automation:
There are various means of automation for pumps, among which there are dry-running blockers, water pressure switches, electronic units, sensors, etc. As a rule, electronics operate in conjunction with additional equipment (hydraulic accumulator, float switch, etc.). In this case, the regulation of the operation of the pumping group can be carried out both by pressure and by flow. An important component is a pressure gauge, which provides visual control of the parameters of the water supply network.
Today, several generations of pump automation are distinguished. The latest electronic devices are considered the most efficient due to high-tech equipment, advanced functionality and more sophisticated settings.
General working principle:
Installation of the automation unit is carried out in a vertical position in any place located between the pump and the first water distribution point (tap). In this case, the outlet is connected to the pipeline, and the inlet is connected to the outlet of the electric pump.
When choosing a pump automation, consider the following technical data.
Automation mechanisms for the pump are used to ensure the autonomous operation of devices with the setting of a suitable mode. In addition, high-quality automation protects the pumps from dry running and saves energy consumption. This approach allows you to extend the life of expensive pumping equipment.
A feature of Jileks' automation is the ability to use devices both with branded models and with devices from other manufacturers. In addition, inexpensive equipment has a number of other useful properties.
The main element of the company's pumping process automation is the Jileks automation unit. Such a device is connected directly to the pumping device and reacts to the pressure level in the system.
The Jileks block consists of a plastic case with a metal cover. Inside the body there is a spring, an electronic unit, complete with a pressure switch and a movable mechanism that closes the contacts when the pressure drops. For external control over the operation of the device, a pressure gauge is mounted on the side surface of the unit.
The device is designed to work on the basis of a pumping station or other surface pump pumping clean water. Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.
Dzhileks automatic equipment functions independently from the usual electrical network. After 30 seconds after installing and connecting the unit, it turns on and works within a few seconds. Then the device turns off and is activated only in case of a change in the pressure in the line.
When the tap at the point of water consumption is opened, the pressure in the pipe begins to decrease rapidly. In this case, the unit immediately turns on and, when the minimum pressure indicator is reached, activates the electric pump. The device pumps water until the pressure is equalized again (when the tap is closed). After the tap is closed, the device works for another 5-20 seconds, continuing to pump water into the line. This measure is a precaution in case the pressure in the system drops below normal and the device is not able to track the pressure level.
Dzhileks 9001 automatic equipment is installed in the supply line complete with additional equipment. Therefore, an important step is the correct installation and configuration of all components. The installation of the automatic control unit from Dzhileks is carried out in the following order:
If necessary, the supply line is supplemented with filters for water purification and a receiver to equalize the pressure in the system.
After all the components are installed in the line, it is necessary to check the device. For this, the pump inlet through the pipeline is filled with liquid and the pump is turned on. One of the indicators on the unit immediately lights up. This indicates that there is contact between the unit and the pumping device. Within a few tens of seconds, the device works and then turns off.
After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then the topmost one is desirable). However, there are two options:
Automation from Dzhileks is a universal device. With its help, the operation of pumping devices from various manufacturers can be regulated. Regarding the principle of operation, such a pressure equalization mechanism is installed on a vibration, centrifugal, vortex, screw pump.
The device works most effectively in combination with pumping devices that meet the following characteristics:
In addition to the automation unit, the company also produces less popular automation options for pumping equipment. One of these options is the installation of Jilex Crab. The device is responsible for a stable pressure in the supply line, starts and stops the pump if necessary. In addition, the filter element removes solids from the stream.
Jilex Crab consists of the following components:
The device operates on the basis of a standard 220 V electrical network. Suitable for simultaneous connection of 2-3 water intake points. An adjustable relay allows you to set, even before starting work, the pressure level that the device will maintain. Like the previous type of devices, the Crab 50 is a universal device and is suitable for connection to borehole pumps of any manufacturer.
A simpler option for automating a pumping station is to install a special relay RDM-5 on it. The compact device is installed in the pipeline and connected to the pumping unit using an electric cable. The wire is fixed to the relay contacts.
The principle of operation of the device is as follows. The device reacts to the pressure level in the line. If the indicator is below the set value, the contacts are connected, the current is supplied to the water intake point and the liquid fills the pipeline until the pressure returns to normal. When the pressure level returns to normal (this indicator is also set by the user), the contacts diverge. The supply of current to the downhole apparatus is interrupted and it is turned off.
The minimum and maximum indicators at which the pumping device is triggered are set by the user. They can be adjusted using two nuts that fix the degree of spring tension. A larger nut, when turned counterclockwise, sets the maximum pressure, a smaller nut, when rotating, allows you to adjust the difference between the maximum and minimum value.
RDM-5 is designed to be used exclusively in water. The operating voltage for the device is 220-230 V. The temperature of the pumped liquid is 0-40 degrees. The relay is fixed to the ¼ ”pipeline. A prerequisite for using the RDM-5 is a high-quality grounding.
For drainage, sewage and surface water pumps, the cheapest and most practical automation method is a float switch. According to the scope of use, such devices are divided into light and heavy. Drainage models are equipped with a light float, heavy floats are installed at water supply stations and water pumps.
The structure consists of an electric cable 3.5, 8 or 10 m long and a plastic float mechanism. Inside the float there are two contacts, a switch lever and a ball that changes the position of the lever. By the number of wires, two and three-wire floats are distinguished.
In the version with two wires, they are directly connected to the contacts of the float. When such a mechanism rises with the water level to the designated level, the lever presses on the contacts, they close and supply energy to the pump.
In models with three wires, the ability to turn on the fence point in the upper and lower positions is supported. To do this, one wire goes to one of the contacts, and the other two wires, depending on the position, go to the second contact.
The principle of operation of such a float mechanism is that the device automatically turns on the pump when the water level rises to the set value. In the case of a two-wire device, the float, on the contrary, opens the contacts and turns off the device when the water falls below normal.
One of the management solutions autonomous water supply- connect to the pump a pressure switch RDM 5, adjustment, the instructions of which are not always clear to the user. At the same time, this type of device from the Jileks brand is considered quite reliable and affordable. The setup problem can be solved, if desired, if you spend a little time studying the operation of the device.
In private houses, where the water supply is not connected, the issue of providing drinking quality water is solved in 2 ways:
Water is supplied to the house using a pump of the required power. But the value of the water pressure during its operation is too high to connect the pump unit directly to the internal water supply networks. Therefore, an intermediate tank with a membrane is installed in the house - a hydraulic accumulator, and the required pressure in the network is maintained by the pressure switch RDM 5. The device allows you to automate the process of water supply in autonomous water supply systems.
The device consists of a brass body with fittings for connection to the water supply network, spring valves and an electrical relay. Outside, the elements are closed with a plastic cover. The scheme of operation of the pressure switch RDM 5 is as follows:
As a rule, the RDM 5 device is equipped with ready-made pumping stations, consisting of a pump, a water accumulator tank and a control relay itself. The station is set up at the factory and is completely ready for operation; all that remains is to connect it to the pipe and the mains. But finished products are not suitable for everyone for the following reasons:
In these cases, the automatic water supply system will have to be assembled from separate elements, and the pressure switch must be adjusted accordingly, coordinating its operation with the storage tank. Before purchasing and connecting a device, it is recommended to study its technical characteristics:
If according to some of the technical characteristics of the RDM 5 relay does not suit you, then you will have to look for another regulator. But practice shows that the parameters of this device meet the requirements of the overwhelming number of autonomous water supply systems.
The pressure switch is set up after the installation of the internal and external water supply network of the house and connection to the electrical network.
External and internal piping connections must be verified by tests so that subsequent leaks do not interfere with the adjustment process. Due to the leakage of the joints, the pressure before or after the pump will spontaneously decrease, which will also affect the operation of the relay.
Before adjusting, you should determine the required head value. In order to supply water to all points of water intake located on different floors, it is necessary to provide the necessary pressure in the accumulator. The efforts of the tank membrane should be sufficient to push the entire volume of water to the required height and overcome all local resistances. At home, this pressure value is most often determined experimentally.
The calculation is simple: 1 m of the lifting height is equal to 10 m of the horizontal section and corresponds to a pressure of 0.1 bar. The farthest branch of the water supply is taken into account. Having approximately determined the required pressure, it is necessary to create such a pressure from the side of the air chamber of the accumulator. To do this, remove the plastic cap from the spool (usually located at the end of the tank) and pump the air chamber with a conventional automobile pump, controlling the pressure with a pressure gauge.
As a result of the settings, the difference between the lower and upper limits should not be less than 1 bar. Practice shows that the optimal pressure drop is about 1.5 bar, then the pump will not turn on too often. At the end of the adjustment, do not rush to put the cover back in place, follow the system for 1 day. Minor adjustments may be needed.
And the installation is affordable. It can work both with native pumps and with pumps from other manufacturers to automate the water supply.
The company offers reliable and modern options pump automatics with a long service life and good characteristics... Let's figure it out in more detail.
The Dzhileks 9001 automatic unit turns on 30 seconds after connecting to the mains. Then it shuts down and goes to sleep. Further switching on of the device occurs when the pressure changes - opening and closing the valve.
As soon as the pressure level drops to the minimum allowable rate, the control element of the automation will turn off the pump. So the safety and efficiency of the device is significantly extended.
After lowering the pressure to the minimum permissible level, the system does not turn off immediately, but after several tens of seconds (usually from five to twenty, depending on the specific model). The delay in turning off the pumps is needed so that, with a weak water pressure, it does not systematically turn off. This helps to extend the life of the system.
To automate pump control, you need to purchase the appropriate additional components for it (depending on your needs), and connect them in the following sequence:
Important! When the level of the incoming water is lower than the level at which the pumping system is installed, it is imperative to mount it on the inlet pipe.
We start the automation as follows:
When the "Protection" LED on the automation unit lights up, and the pump itself is turned off, this may indicate the danger of idle operation of the system. This is how press control works.
Recheck all systems. If everything is in order, drain the water from the incoming system and refill it. Then click the "Restart" button.
Vibrating or any other type of pump can be additionally equipped with automation systems. But, they have different parameters, properties, etc. Which ones should you buy?
Technical indicators (optimal):
