Evgeny Sedov
When the arms grow out of the right place, live more fun :)
Content
Pipes located in unheated premises need to be protected from freezing. From what material they would be made, their thermal conductivity is high, so the freezing occurs quickly. To avoid unnecessary problems, use a pipe insulation, which will create reliable insulation for pipelines from frosts and even insulation from noise due to its noise absorbing qualities.
On the russian market There are many companies producing structural elements to reduce heat transfer. You can choose products made from different materials, choose right size And suitable for your communications characteristics. Thermal insulation of pipes can be carried out of several types of protection, such as polyethylene or foam.
One of the best ratios of the price and quality is characterized by the insulation for polyethylene pipes. It is a material consisting of the smallest cells that use well the system well. It protects against metal corrosion. The material itself practically does not absorb water and withstands the temperature from -60 to +90 degrees. The coating is easy to install.
In systems for heating, the following material reduces heat loss to 80%. It is produced by sleeves 2 meters of different thickness:
Well copes with the insulation of cold and hot communications the following product. Due to the color separation, it allows distinguishes pipes with hot and cold water:
Another universal material with which you can work to protect heating, sewage systems, etc. It is racks to the effects of materials such as concrete, plaster, lime:
Foil - heat insulator, which is often used in construction. Its functions are largely superior to other types of materials such as foam or mineral wool. When the need for a material capable of reflecting heat waves is used, a foil insulation for pipes is used. It is a basic heat insulating materialcovered with foil.
Thermal insulation for pipes of this type is used in different branches of construction. It is suitable for pipes of any size due to the fact that you yourself cut the necessary pieces of material:
If you need an excellent insulator, which will provide a double heat shielding effect, select the following item. Heatlopotieri with him will be minimized:
As protection against steam, the outlet of heat, the reduction of noise is suitable for this isolator. It reflects about 55% of energy and perfectly transfers the wet environment:
Polyfoam is one of the most common materials. The second name is polystyrene foam. It combines favorable characteristics: cheap and easy to use. Pipe polystyrene foam received a second name - "shell for pipes" due to the corresponding external view. It can have 1 or two cuts with grooves at the junctions that fasten the edges securely.
Polymerisolation Company produces products such as foam heat insulation for heating pipes. They are durable, lungs and safe:
Another type of foam products for fast and light mounting, which will effectively protect any external thermal pipeline:
In the case when plastic communications in sewage or pipeline is required, you can use this product. It is suitable for reusable and will provide you with quick access to problem places if necessary:
Cylinders made from basalt fiber are manufactured in any diameter and size. They have the highest temperature resistance (from -200 to + 300 ° C), withstand temperatures above 1000 degrees, without melting, are perfectly suitable for reduced heating costs. The heat loss level, where the basalt insulation is used is 8%, which leads to savings up to 20% of the funds.
Excellent thermal and sound isolation can be achieved using this product. Manufacturers produce it to order on customer customer requirements:
There is another species of the same material that has increased thermal insulation properties. This product is produced with different coatings:
The following means of protection is produced with different coatings. It performs not only a protective, but also a decorative function in those places where the pipes are located:
The thermal insulation of pipelines can be carried out using special paint, which creates an energy-saving barrier with a thickness of 1 mm. Method of applying: with a tassel, roller or with a sprayer. After drying, the liquid insulation for pipes forms a matte surface, which serves as a thermal mirror, not inlet cold and non-burning heat.
The thermal insulation for the water supply pipes of the company Corundum deserves attention. It protects well from freezing and prevents the formation of moisture on the surface:
Another type of liquid isolation that can withstand temperatures from -60 to +600 degrees, this production heat maker. The paint will serve you about 30 years and will help to significantly save on heating:
Basic composition, which is suitable for various applications. After applying, it is tight and reliably envelops the surface:
To properly choose the insulation for water supply pipes and protect yourself from problems, you need to pay attention to the three main factors: place (apartment, attic, in the ground, in sewage, outdoors), convenience of installation, price. All types of products are easily installed independently, but universal in all characteristics - polyethylene.
When it is important to reduce heat absorption, choose a foil insulation on the pipes. Polystyrene foam fragile, but suitable for work anywhere. Basalt material is easily mounted, possesses good characteristicsBut it costs expensive. If there is a task to quickly heat the system, but other ways are not suitable, choose a heatcharacy that is easily applied, it looks beautiful and protects well.
The functional manifold of pipelines, as well as the climatic conditions of our country led the variety of methods that are carried out thermal insulation for pipes.
Pipelines are classified by several features. Depending on the type of product, which is transported according to them, they are divided into the following types:
Depending on the distance to which transportation is carried out, pipelines are:
In a separate group allocated technological pipelineswho serve industrial needs, being directly at the production.
In addition, there is a division of pipelines on species according to the characteristics of the transported medium and working pressure.
Depending on the purpose of the pipeline, thermal insulation for pipes can solve different tasks. List them:
The choice of material and the method of thermal insulation is made on the basis of its purpose.
There are two main insulation methods:
To date, insulating materials are produced in such forms:
Important! When choosing a insulation, it is necessary to consider for what types of pipeline it is intended. Failure to comply with this rule can lead not only to the violation of heat shields, but also to damage the pipeline itself.
Consider the most common types of insulation, as well as methods of their installation.
Of all kinds of insulation, mineral wool is characterized by the lowest cost. Installation of isolation from this material is simple, but labor crews.
For this, the roll roll is cut across the cuts with a thickness of 200 mm and then wind pipes. And first wind the layer of mineral wool, and on top of her layer of fiberglass.
Fiberglass needs to be laid tight, but so that it does not comprehend the insulation. The thickness of the wool layer, covering the heat insulated pipes, should be about 100 mm. This indicator depends on the ambient temperature.
When cooked mineral wool, it should be followed so that it moves evenly and not crushed.
Mineral wool is used as thermal insulation of large-diameter pipelines, most often for the heating of urban networks and for sewage systems.
For water supply, heating, as well as sewer small diameter, this type of insulation is usually not practiced.
This type of insulation is used for sewage, plumbing and heating pipes with a diameter of more than 50 mm. The shell consists of insulation and protective shell.
The insulation is made of mineral wool or mounting foam, and the protective shell is a thin metal sheet, bent in the form of halves of the nut shell.
When mounting, half the shells are superimposed on the pipe, forming a protective cocoon around it, and bonded with a clamp or mounting wire.
To insulate the angular elements of the shell can be made curved at an angle of 45 or 90 degrees.
In the average price of the shell exceeds the remaining types of thermal insulation.
This type of insulation or, in other words, liquid insulation is a composite material. It consists of a two-component polyurethane sealant and a protective shell, which is made from thin sheet stainless steel or from galvanized.
It is also used to insulate the high-diameter highways.
The installation process consists of the following steps:
During the reaction between the components, a mounting foam is formed, the filling space between the shell and the surface of the pipe.
Important! When working with polyurethane sealants, it is necessary to strictly observe security measures. You can not allow it to hit the skin.
Tubular insulation - Merilov, is made of foamed polyethylene. It is used to insulate the waterways with a diameter of no more than 100 mm.
To mount a Мерилона, you should remove the ribbon fixed along the tube. After that, the tube is revealed and it can be easily put on a tap pipe. Then the merilon is fixed with a tape or scotch.
They are isolated by domestic networks, water supply, sewer or designed for heating, located in the building or depicted to the depth of no more than meters.
Important! Merilon is not intended for use in the open air.
The climatic features of Russia are such that they often have to spend large funds for the heating of buildings and maintain heat in them. The Russian economy develops today towards saving fuel and energy resources. One of the successful options for solving the problem of heat conservation is thermal insulation of pipelines.
It lies in the separation of one thermal conducting from others. Pipe isolation helps effectively preserve the energy of the energy carrier, and warns the freezing of cold pipelines. For this purpose, the blocking materials are used. When choosing optimal insulation materials, it is necessary to consider the following parameters:
Pipe isolation - benefits of use
When performing thermal insulation of tanks or pipelines, the main task is pursued: reliable and long-term protection of insulated surfaces. However, the requirements for thermal insulation materials may vary depending on the operating conditions.
The thermal insulation of pipelines of cold water supply, air conditioning and refrigeration equipment is carried out in order to prevent freezing pipes and the formation of condensate, and the appearance of corrosion. If working with hot pipelines are performed, the tasks are given different: reduce heat loss and make the heating system economical. In addition, the insulation of pipes serves to quenct unwanted noise effects, inevitably arising in cases of pressure drop inside the pipes.
Methods of isolation
Mineral wool cylinders and mats are used for thermal insulation of tanks and pipelines.
TEKHNONICOL CYLINDERS MAKED FROM stone watiAllowed to carry out effective thermal insulation of pipelines. In addition to other advantages, the insulation of pipes by this method is convenient and easy to install. For insulation of pipelines, Mat Lamiel TechnoNikol, a firmware Mat Technonol, Cylinder Teknonikol can be used. To achieve a higher level of thermal insulation, mats are coated with aluminum foil. Wire, aluminum scotch, assembly clamps are successfully used for their attachment.
Mat Lamiel TechnoNIKOL is used for thermal insulation of pipelines of different diameters, heat and vaporizolation of air ducts, is used at a temperature of insulated surfaces up to 250 degrees. It is made of mineral fibers, which are mounted with glue to the reinforced foil. Mat Lamiel is distinguished by high compressive strength and low deformation during installation.
The TEKHNONIKOL is used for insulation of ventilation channels and pipelines. It is a non-combustible heat and sound insulation material made of mineral wool. Sometimes the firmware Mat Technonol is made with a stacking glass cholester or aluminum foil. Insulation rigidity gives a galvanized steel mesh that is sewn to the mat with steel wire.
The TEKNONIKOL cylinder is used to insulate industrial pipes, at objects of various industries. In order to save energy, the most effective way is to reduce heat losses by heat insulation of tanks and pipelines.
In order to save energy, the most effective way is to reduce heat losses by heat insulation of tanks and pipelines.
Thermal insulation of pipelines is a set of activities aimed at preventing the heat exchange of the medium transported on them with the environment. Thermal insulation of pipelines is applied not only in hot water heating and supply systems, but also where the technology requires transportation of substances with some particular temperature, such as refrigerants.
The meaning of thermal insulation is the use of funds that have thermal resistance to heat exchange of any kind: Contact and implemented by infrared radiation.
The greatest use, expressed in numbers, has thermal insulation of pipelines of thermal networks. Unlike Europe, the centralized heating system is dominated by the entire post-Soviet space. Only in Russia alone, the total length of the heat network is more than 260 thousand kilometers.
Significantly less often isolation for heating pipes finds the use of private households having an autonomous heating system. Only in several northern regions, private houses are connected to the central heating area with the placement of heating pipes on the street.
Some types of boilers, for example, powerful gas or diesel, the requirements of the joint venture of the SP 61.13330.2012 "Thermal insulation of equipment and pipelines" is prescribed separate from the placement building - in the boiler room, separated from the heated object by several meters. In their case, the fragment of the strapping passing through the street necessarily needs insulation.
On the street, insulation of heating pipelines is required and when there is an open location, and with a hidden gasket - under the ground. The last way can be channel - a reinforced concrete chute is placed in the trench first, and pipes are already placed in it. The infantal way of accommodation is directly in the ground. The used insulation materials differ not only on thermal conductivity, but also vapor, waterproof, durability and installation methods.
Not so obvious the need for insulation of cold water pipes. However, without it, it is not necessary to do when the water supply is laid by an open landfinder - pipes need to be protected from freezing and subsequent damage. But also inside buildings, the water pipes are also available - to prevent moisture condensation on them.
Proven practice operation insulation materials. Meet the requirements of the SP 61.13330.2012, SNIP 41-03-2003 and fire safety standards with any method of laying. It is a fiber with a diameter of 3-15 μm, according to the structure close to crystals.
Glasswater is made of glass production waste, minvat from silicon-containing slags and silicate waste of metallurgy. The differences of their properties are insignificant. Released in the form of rolls, firmware mats, plates and crimped cylinders.
Materials It is important to keep care and be able to apply. Any manipulations must be performed in protective overalls, gloves and respirator.
The pipe is wrapped or plated by cotton, providing a uniform fill density over the entire surface. Then isolation, not too transmitting, fixed with a knitting wire. Material is hygroscopic and easily wet, therefore, the insulation of the outer pipelines made of mineral or glass wool requires the installation of a vapor insulating layer of material with low vapor permeability: rubberoid or polyethylene film.
The coating layer is placed on top of it, preventing sediment penetration - the roofing casing, galvanized iron or leaf aluminum.
More dense than glass gamble. Fibers are made from the melt of gabbro-basalt rocks. Absolutely non-flag, briefly withstands the effects of temperatures up to 900 ° C. Not any insulating materials can be in contact with the surfaces, heated to 700 ° C.
The thermal conductivity is comparable to polymers, varies from 0.032 to 0.048 W / (M · K). High performance indicators make it possible to use its thermal insulation properties not only for pipelines, but also with the arrangement of hot chimneys.
Available in several versions:
The last two performances have different modifications that differ in the density and the presence of a heat transfer film. The cylinder slot and the edge of the shell can be made in the form of a thickening connection. 
SP 61.13330.2012 contains an indication of the thermal insulation of pipelines is required to comply with the requirements of the safety and environmental protection. Basalt cotton wool itself corresponds to fully.
Manufacturers often resort to tricks: To improve consumer indicators - to give it hydrophobicity, greater density, vapor permeability they use impregnation based on phenolofehyd resins. Therefore, 100% safe for a person cannot be called it. Before applying basalt wool in a residential room, it is desirable to study its hygienic certificate.
The fibers of the insulation are stronger than that of glass gambles, so the hitting of its particles into the body through lungs or skin is almost excluded. However, during the work, it is still recommended to use gloves and respirator.
The installation of the roll canvas does not differ from that method, which isolation of the heating pipes with glass gamble. Heat shutter in the form of shell and cylinders is attached to the pipes using the assembly tape or a wide bandage. Despite some hydrophobicity of basalt wool, a waterproof vapor-permeable shell of polyethylene or rubberoid is also required to isolated with its help pipes from polyethylene or rubberoid, and an additional, from tin or dense aluminum foil.
More than twice reduces thermal losses compared to glass gamble and mineral Vata.. Its advantages include low thermal conductivity, excellent waterproofing properties. The service provisions - 30 years old;. The operating temperature range from -40 to +140 ° C, the maximum withstanding for a short time is 150 ° C.
The main grades of the PPU relate to the combustible group of G4 (strong-horror). When the composition is changed using an additive of anti-epires, they are assigned g3 (normal-horritable).
Although polyurethane foam is perfect as an insulating material for heating pipes, keep in mind that the SP 61.13330.2012 allows the use of such thermal insulation only in single-family residential buildings, and SP 2.13130.2012 limits their height in two floors.
The heat insulation coating is available in the form of shell - semicircular segments with tongue locks on the ends. There are also ready-made steel tubes In isolation from polyurethan With a prevention shell of polyethylene.
Shells are fixed on the heating tube using screeds, clamps, plastic or metal bandage. Like many polymers, the material does not tolerate the long-term exposure to sunlight, so the open ground pipeline when using the PPU-shell need a coating layer, for example, from galvanized steel.
For underground chamberless placement, thermal insulation products are laid on waterproof and temperature mastic or glue, and isolate with waterproof coating outside. It is also necessary to take care of the anti-corrosion treatment of the surface of metal pipes - even the cocked locking pinch is not tight enough to prevent the condensation of water vapor from air.
Released in the form of a shell, externally practically not different from polyurethane foam - the same dimensions, the same castle compound "Schip-groove". But the temperature range of application, from -100 to +80 ° C, with all this external similarity makes it impossible or limited to its use for thermal insulation of the heating pipeline.
Snip 41-01-2003 "Heating, ventilation and air conditioning" states that in the case of a two-pipe heat supply system, the maximum feed temperature can reach 95 ° C. As for the inverse heating risers, it is not so unambiguous here: it is believed that the temperature does not exceed 50 ° C.
The insulation of the foam is more often used for cold water pipe and sewage pipes. However, it can be used on top of other insulation with a higher admissible use temperature.
The material is inherent in a number of certain drawbacks: the string (even with the additive of flames), it does not tolerate chemical effects (dissolved in acetone), shied with balls with long-term exposure to solar radiation.
There are other, non-polystyrene foams - formaldehyde, or short, phenolic. In fact, it is a completely different material. It is deprived of these disadvantages, successfully applies as thermal insulation of pipelines, but not so widespread.
The shells are fixed on the pipe with a bandage or foil tape, it is allowed to be glued to the pipe and between themselves.
The temperature range in which the use of high pressure polyethylene is allowed, from -70 to +70 ° C. The upper limit is not combined with the maximum temperature of the heating pipe, usually taken during the calculations. This means that as thermal insulation of pipelines, the material is unsuitable, but can be used as an insulating layer on the heat-resistant.
Polysto foam isolation found almost non-alternative use as protection against the freezing of pipes of water supply. Very often it is used as vapor barrier and waterproofing.
The material is produced in the form of sheets or in the form of a flexible thick-walled pipe. The last form is more often used, as more convenient for the insulation of the water supply. Standard length - 2 meters. Color varies from white to dark gray. Perhaps the presence of a coating of aluminum foil reflecting IR radiation. Differences relate to internal diameters (from 15 to 114 mm), wall thicknesses (from 6 to 30 mm).
Application provides a temperature on the pipe above the dew point, which means it prevents condensate.
A simple way with worst vapor insulation results - cut the foamy material for a small deepening along the side surface, reveal the edges and wear onto the pipe. Then wrap along the entire length of the assembly tape.
More complex solution (And not always feasible) - to block the water, fully disassemble the warmed plots of water supply and put on whole segments. Then collect everything back. Polyethylene consolidate with screeds. In this case, only segments of segments will be a vulnerable place. It can be glued or closed with scotch.
Foamed synthetic rubber with a closed structure - the most versatile material for maintaining heat and cold. Designed for temperature range from -200 to +150 ° C. Complies with all environmental safety requirements.
It is used as insulation of cold water pipelines, insulation of heating pipes, often occurs in refrigeration systems and ventilation systems. Pipes for heating, laid inside buildings and rubber, do not require the installation of a vapor insulating layer.
Externally similar to foamed polyethylene, also produced in the form of sheets and flexible thick-walled pipes. Installation is also practically no different, except that such thermal insulation of pipes can be attached to glue.
Technology that allows you to independently spray foam from polyurethane composition on ready-made designs. Excellent adhesive properties allow you to use it not only for insulation of pipelines, but also apply on other elements that need insulation: the foundation, walls, roof. Coating, in addition to thermal protection, provides hydro, vapor barrier, provides anti-corrosion resistance.
ConclusionProperly performed installation of thermal insulation is the key to the fact that the pipe does not lose heat, and the consumer will not freeze. The freezing of the cold water supply pipeline invariably leads to its rupture. Until recently, fiberglass has been glasswater on hidden and open heating materials on hidden and open heating materials. Its disadvantages arise one of the other. Such a coating requires constant control.
Even with insignificant damage to the protective surface layer, vapor permeability and hygroscopicity reduces all savings on no. Moisture is the cause of low thermal resistance and premature destruction. Significantly improve the situation will help modern insulating materials with a cellular structure, inert to the effects of steam and water: polyurethane foam, foamed rubber, polyethylene foam.
