Thermal steam turbine PT-80 / 100-130 / 13 of the production association of the turbo buildings "Leningrad Metal Plant" (LMZ feet) with industrial and heating steam selection with a rated power of 80 MW, maximum 100 MW with initial pair pressure 12.8 MPa is designed for direct drive Electric TVF-120-2 generator with 50 Hz rotation frequency and heat leave for the needs of production and heating.
When ordering a turbine, as well as in other documentation, where it should be denoted by "Turbine Steam 1GG-80 / 100-130 / 13 TU 108-948-80".
The PT-80 / 100-130 / 13 turbine complies with the requirements of GOST 3618-85, GOST 24278-85 and GOST 26948-86.
The turbine has the following adjustable steam selements: an absolute pressure production (1.275 ± 0.29) MPa and two heating selections: upper with absolute pressure in the range of 0.049-0.245 MPa and lower with a pressure in the range of 0.029-0.098 MPa.
The pressure control of the heating selection is performed using one control aperture installed in the upper heating selection chamber. Adjustable pressure in heating selections is supported: in the upper selection - with both heating selections included in both heating selections, in the lower selection - with the same lower heating selection included. Network water through the network heaters of the lower and upper steps of heating is passed sequentially and in the same quantity. Water consumption passing through network heaters is controlled.
| Parameter | PT-8O / 100-130 / 13 |
| 1. Power, MW | |
| nominal | 80 |
| maximum | 100 |
| 2. Initial pair parameters: | |
| pressure, MPa | 12.8 |
| temperature. ° S. | 555 | 284 (78.88) |
| 4. Consumption of the selected steam on production. Needs, t / h | |
| nominal | 185 |
| maximum | 300 |
| 5. Pressure of production selection, MPa | 1.28 |
| 6. Maximum consumption of fresh steam, t / h | 470 |
| 7. Limits of changing the pressure of steam in adjustable heating selections of steam, MPa | |
| in Upper | 0.049-0.245 |
| in the bottom | 0.029-0.098 |
| 8. Water temperature, ° C | |
| nourishing | 249 |
| cooling | 20 |
| 9. Consumption of cooling water, t / h | 8000 |
| 10. Couple pressure in condenser, kPa | 2.84 |
With nominal parameters with fresh steam, cooling water consumption of 8000 m3 / h, a cooling water temperature of 20 ° C, fully incorporated regeneration, the number of condensate heated in a PVD, equal to 100% steam consumption through a turbine, when operating a turbo set with a deaerator 0.59 MPa, With a stepped heated of the network water, with the full use of the bandwidth of the turbine and the minimum passage of steam into the capacitor, the following selections can be taken:
- nominal values \u200b\u200bof adjustable selections with a capacity of 80 MW;
- production selection - 185 t / h at absolute pressure of 1.275 MPa;
- total heating selection - 285 gidge / h (132 t / h) at absolute pressures: in the upper selection - 0.088 MPa and in the lower selection - 0.034 MPa;
- The maximum amount of production selection at absolute pressure in the selection chamber 1.275 MPa is 300 tons / h. With this magnitude of the production selection and the absence of heating selections, the turbine power is -70 MW. At rated power of 80 MW and the absence of heating selections, the maximum production selection will be -250 t / h;
- the maximum total amount of heating selections is 420 gidge / h (200 t / h); With this magnitude of heating selections and the absence of industrial selection, the turbine power is about 75 MW; At rated power of 80 MW and the absence of production selection, the maximum heating selements will be about 250 gidge / h (-120 t / h).
- Maximum turbine power with production and heating selections off, with a cooling water consumption of 8000 m / h with a temperature of 20 ° C, fully turned on with a regeneration will be 80 MW. Maximum turbine power 100 MW. Received with certain combinations of industrial and heating selections, depends on the size of the selections and is determined by the diaphragm of modes.
It is possible to work the turbine installation with the passage of the feed and network water through the built-in bundle
When cooling the condenser with network water, the turbine can operate on thermal graphics. The maximum thermal power of the built-in beam is -130 gidge / h when maintaining the temperature in the exhaust part is not higher than 80 ° C.
The long operation of the turbine with a rated power is allowed at the following deviations of the main parameters from the nominal:
For this turbine installation PT-80 / 100-130 / 13, heater is used high pressure №7 (PVD-475-230-50-1). PVD-7 works when steam parameters before entering the heater: a pressure of 4.41 MPa, a temperature of 420 ° C and a steam consumption of 7.22 kg / s. Parameters nutrient water At the same time: Pressure 15.93MP, temperature 233 ° C and consumption of 130 kg / s.
For large plants of all industries that have large heat consumption, the energy supply system is optimal from the district or industrial CHP.
The process of electricity production at the CHP is characterized by increased thermal economy and higher energy indicators compared with condensation power plants. This is explained by the fact that the spent heat of the turbine, allocated to the cold source (heat receiver at the external consumer), is used in it.
The work was calculated by the principal thermal circuit of the power plant based on the PT-80 / 100-130 / 13 industrial process, operating on the calculated mode with the outer air temperature.
The task of calculating the heat scheme is to determine the parameters, costs and directions of working fluids in aggregates and nodes, as well as the total consumption of steam, electrical power and indicators of the heat efficiency of the station.
The power unit with an electric capacity of 80 MW consists of a high-pressure drum boiler E-320/140, a PT-80 / 100-130 / 13 turbine, generator and auxiliary equipment.
The power unit has seven selections. In turbo system, you can exercise two-stage heating of the power water. There is a primary and peak boiler, as well as a PVC, which turns on if the boiler cannot provide the desired heating of the network water.
Fresh pairs of a boiler with a pressure of 12.8 MPa and a temperature of 555 ° C enters the tour of the turbine and, working, headed into the turbine CSD, and then in Cund. After spending steam comes from Cund to the condenser.
In the power unit for regeneration, three heater of high pressure (PVD) and four low (PND) are provided. The numbering of the heaters comes from the tail of the turbo unigate. The condensate of the heating pair of PVD-7 is cascadingly merged into PVD-6, in PVD-5 and then in Deaerator (6 Ata). Drain of condensate from PND4, PND3 and PND2 is also carried out cascading in PND1. Then from the PND1 condensate of the heating steam, is sent to cm1 (see PRTS2).
The main condensate and nutrient water are heated sequentially in PE, CX and PS, in four heaters low pressure (PND), in DeaErator 0.6 MPa and in three high pressure heaters (PVD). Vacation Couple on these heaters is carried out of three adjustable and four unregulated selections of a pair of turbine.
On the water heating unit in the heating network, there is a boiler installation, consisting of the lower (PSG-1) and the upper (PSG-2) of the network heaters that feed on the ferry from the 6th and 7th selection, and PVC. Condensate from the upper and lower network heaters is supplied with drain pumps into the mixers of CM1 between PND1 and PND2 and CM2 between the heaters of PND2 and PND3.
The heating temperature of the nutrient water lies within (235-247) 0 C and depends on the initial pressure of fresh steam, the amount of underheating in PVD7.
The first selection of steam (from the CVD) is to heat the feed water in PVD-7, the second selection (from the CVD) - in PVD-6, the third (from the CVD) - in PVD-5, D6ATA, for production; The fourth (from the CSD) - in the PND-4, the fifth (from the CSD) - in PND-3, the sixth (from the CSD) - in the PND-2, Deaerator (1.2 Ata), in PSG2, in PSV; Seventh (from Cund) - in PND-1 and in PSG1.
To replenish losses in the scheme, the crude water is provided. Crude water is heated in the heater of raw water (PSV) to a temperature of 35 o C, then, passing chemical cleaning, enters the deaerator of 1.2 Ata. To ensure heating and deaeration of additional water, the heat of the sixth selection is used.
Couples from seal rods in the amount of D PC \u003d 0.003D 0 goes to DeaErator (6 Ata). Couples from extreme seals cameras are sent to CX, from the average seal chambers in PS.
Blowing boiler - two-stage. Couples with an expander of the 1st stage goes to Deaaerator (6 Ata), from the 2nd stage expander in Deaerator (1.2 Ata). Water from the 2nd stage extender is fed to the mains of the power water, for partially replenishing the loss of the network.
Figure 1. The fundamental heat diagram of the CHP based on TU PT-80 / 100-130 / 13
TECHNICAL DESCRIPTION
Description of the object.
Full name: "Automated training course" Operation of the PT-80 / 100-130 / 13 turbine ".
Symbol:
Year of issue: 2007.
The automated training course in the operation of the PT-80 / 100-130 / 13 turbine is designed to prepare operational personnel serving the turbine establishment of this type and is a means of learning, pre-examination preparation and examination testing of CHP personnel.
AUC is compiled on the basis of the regulatory and technical documentation used in the operation of Turbine PT-80 / 100-130 / 13. It contains text and graphic material for interactive learning and testing learners.
This auka describes the constructive and technological characteristics of the main and auxiliary equipment of heat turbine turbines PT-80 / 100-130 / 13, namely: the main steam valves, a locking valve, control valves, a steam mill, the design of the CCD, CSD, CND, turbine rotors , bearings, grinding device, seal system, condensation set, low pressure regeneration, nutritional pumps, high pressure regeneration, heat installation, oil system of turbine, etc.
The launchers, regular, emergency and stop modes of operation of the turbine installation, as well as the main criteria for reliability when warming up and adding steam pipelines, blocks of valve valves and turbine cylinders are considered.
The system of automatic regulation of the turbine, a system of protection, locks and alarms is considered.
The procedure for admission to inspection, testing, equipment repair, safety and explosion safety regulations is determined.
Auka composition:
Automated training course (AUC) is a software tool intended for the initial learning and subsequent testing of knowledge of electric stations and electrical networks. First of all, for training operational and operational and repair personnel.
The basis of the auka is the existing production and official instructions, regulatory materials, data manufacturers of equipment.
AUCH includes:
- section of general theoretical information;
- section in which the design and rules of operation of the specific type of equipment are considered;
- section of self-test learned;
- Examinator block.
AUC In addition to texts, contains the desired graphic material (schemes, pictures, photos).
Information content AUC.
1. Text material is based on instructions for operation, PT-80 / 100-130 / 13 turbines, factory instructions, other regulatory and technical materials and includes the following sections:
1.1. Operation of the turbine unit PT-80 / 100-130 / 13.
1.1.1. General About turbine.
1.1.2. Oil system.
1.1.3. System of regulation and protection.
1.1.4. Condensation device.
1.1.5. Regenerative installation.
1.1.6. Installation for heating the power water.
1.1.7. Preparation of the turbine to work.
Preparation and inclusion in the operation of the oil system and VPU.
Preparation and inclusion in the operation of the system regulation and protection of the turbine.
Testing protection.
1.1.8. Preparation and inclusion in the operation of the condensation device.
1.1.9. Preparation and inclusion in the operation of the regenerative installation.
1.1.10. Preparation of the installation for heating the network water.
1.1.11. Preparation of a turbine for launch.
1.1.12. General guidelines that should be performed when a turbine starts from any condition.
1.1.13. Start of a turbine from a cold state.
1.1.14. Starting a turbine from a hot state.
1.1.15. Work mode and change parameters.
1.1.16. Condensation mode.
1.1.17. Mode with selection for production and heating.
1.1.18. Reset and sketching the load.
1.1.19. Stop turbine and bringing the system to its original state.
1.1.20. Check technical condition and maintenance. Terms of checking protection.
1.1.21. Maintenance Lubrication and PPU systems.
1.1.22. Maintenance of the condensation and regenerative installation.
1.1.23. Maintenance of the installation for heating the network water.
1.1.24. Safety in the maintenance of the turbogenerator.
1.1.25. Fire safety When servicing turbo units.
1.1.26. The procedure for testing safety valves.
1.1.27. Annex (protection).
2. Graphic material in this auke is represented in 15 drawings and schemes:
2.1. A longitudinal section of the PT-80 / 100-130-13 turbine (CVD).
2.2. Longitudinal section of the PT-80 / 100-130-13 turbine (CSD).
2.3. Scheme of pair selection pipeline.
2.4. Turbogenerator oil conduction circuit.
2.5. Scheme of supply and suction steam with seals.
2.6. Silent heater PS-50.
2.7. Characteristics of the PS-50 gland heater.
2.8. Scheme of the main condensate of the turbogenerator.
2.9. Scheme of pipeline pipeline.
2.10. Scheme of pipeline pipelines of the steam-air mixture.
2.11. PVD protection scheme.
2.12. Scheme of the main steam road steam truck.
2.13. Drainage diagram of a turbine unit.
2.14. Scheme of the gas suite system of the TVF-120-2 generator.
2.15. Energy characteristics of TBE unit type PT-80 / 100-130 / 13 LMZ.
Check of knowledge
After studying text and graphic material, the learner can run the program of self-checking of knowledge. The program is a test that checks the degree of mastering the instructions. If an erroneous response, the operator is displayed an error message and a quote from the instruction text containing the correct answer. The total number of questions on this course is 300.
Exam
After passing the training course and self-controlling knowledge of the learner learn exam test. It includes 10 questions selected automatically randomly from among the issues provided for self-test. During the exam, the examination is invited to respond to these questions without tips and the opportunity to refer to the textbook. No error messages before the end of testing are displayed. After the exam end, the learner receives a protocol in which the proposed issues selected by the examinations of answers and comments on erroneous responses are set out. An evaluation for the exam is exhibited automatically. Testing protocol is saved on the hard disk of the computer. It is possible to print it on the printer.
| Task for a course project | 3 |
|
| 1. | Source reference data | 4 |
| 2. | Calculation of the boiler installation | 6 |
| 3. | Construction of the steam expansion process in the turbine | 8 |
| 4. | Paper and Nutrition Balance | 9 |
| 5. | Determination of parameters of steam, nutrient water and condensate for PTS elements | 11 |
| 6. | Drawing up and solving the equations of heat balances on sites and elements of the PTS | 15 |
| 7. | Power energy equation and its solution | 23 |
| 8. | Check calculation | 24 |
| 9. | Determination of energy indicators | 25 |
| 10. | Selection of auxiliary equipment | 26 |
| Bibliography | 27 |
|
Task for the term project
Student: Onuchin D.M..
Project topic: Calculation of the heat scheme PT-80 / 100-130 / 13
Project data
P 0 \u003d 130 kg / cm 2;
;
;
Q T \u003d 220 MW;
;
.
Pressure in unregulated selections - from reference data.
Preparation of additive water - from the atmospheric deaerator "D-1,2".
Volume of the calculated part
1. Original reference data
The main indicators of the turbine PT-80 / 100-130.
Table 1.
| Parameter | Value | Dimension |
| Rated power | 80 | MW. |
| Maximum power | 100 | MW. |
| Primary pressure | 23,5 | MPa |
| Starting temperature | 540 | FROM |
| Pressure at the exit from the CVD | 4,07 | MPa |
| Outlet temperature from CVD | 300 | FROM |
| The temperature of the superheated para | 540 | FROM |
| Cooling water consumption | 28000 | m 3 / h |
| Cooling water temperature | 20 | FROM |
| Pressure in the condenser | 0,0044 | MPa |
The turbine has 8 unregulated steam selements designed to heat the feed water in low pressure heaters, deaerator, in high pressure heaters and to power the leading turbine of the main nutritional pump. The spent pair of turbine returns to the turbine.
Table 2.
| Selection | Pressure, MPa | Temperature, 0 s |
|
| I. | PVD number 7. | 4,41 | 420 |
| II. | PVD number 6. | 2,55 | 348 |
| III | PND №5 | 1,27 | 265 |
| Deaerator | 1,27 | 265 |
|
| IV. | PND №4 | 0,39 | 160 |
| V. | PND №3. | 0,0981 | - |
| VI | PND №2. | 0,033 | - |
| VII | PND №1 | 0,003 | - |
The turbine has two heating selection of a pair of upper and lower, intended for one and two-stage heating of the network water. Heating selections have the following pressure regulation limits:
Upper 0.5-2.5 kg / cm 2;
Nizhny 0.3-1 kg / cm 2.
2. Calculation of the boiler installation
WB - upper boiler;
NB - lower boiler;
Obr - reverse network water.
DB, D NB Couple on the upper and lower boiler, respectively.
Temperature schedule: T PR / T OR BR \u003d 130/70 C;
T PR \u003d 130 0 C (403 K);
T Ob \u003d 70 0 C (343 K).
Determination of steam parameters in heat sewage
We will take a uniform heating on the VSP and NSP;
We accept the amount of underheating in network heaters 
.
We accept pressure loss in pipelines 
.
Pressure of the upper and lower selections from the turbine for VSP and NSP:
bar; 
bar.
h WB \u003d 418.77 kJ / kg
h NB \u003d 355.82 kJ / kg
D BB (H 5 - H WB /) \u003d K W SV (H WB - H NB) →
→ DB \u003d 1.01 ∙ 870,18 (418.77-355,82) / (2552.5-448,76) \u003d 26.3 kg / s
D NB H 6 + D WB H WB / + to W SV H OBR \u003d KW SV H NB + (D BB + D NB) H NB / →
→ D NB \u003d / (2492-384,88) \u003d 25.34kg / s
D BB + D NB \u003d D B \u003d 26.3 + 25.34 \u003d 51.64 kg / s
3. Construction of the steam expansion process in the turbine
We will take the pressure loss in cylinder pair distribution devices:
;
;
;
In this case, the pressure at the entrance to the cylinders (for regulating valves) will be:
The process in H, the S-diagram is shown in Fig. 2.
4. Paper and nutritious water balance.
Then:
D Prod \u003d 0.015d \u003d 1.03d K \u003d 0,0154d.
Condensate loss for production:
(1 - K PR) d \u003d (1-0.6) ∙ 75 \u003d 30 kg / s.
The pressure in the boiler drum is about 20% more than the pressure of fresh steam at the turbine (counted by hydraulic losses), i.e.
P K.V. \u003d 1.2p 0 \u003d 1.2 ∙ 12.8 \u003d 15.36 MPa → 
kJ / kg.
Pressure in the continuous purge expansion (RNP) is about 10% more than in DeaErator (D-6), i.e.
P pH \u003d 1.1p d \u003d 1.1 ∙ 5,88 \u003d 6.5 bar →
→
kj / kg;
KJ / kg;
KJ / kg;
D P.R. \u003d β ∙ D Prod \u003d 0.438 ∙ 0,0154d \u003d 0.0067d;
D.R. \u003d (1-β) D Prod \u003d (1-0.438) 0,0154d \u003d 0.00865d.
D Type \u003d D ut + (1-k PD) d PR + D V.R. \u003d 0.02d + 30 + 0.00865d \u003d 0.02865d + 30.
Determine the flow rate of network water through network heaters:
We accept leaks in the heat supply system 1% of the number of circulating water.
Thus, the necessary productivity is chemical. Water purification:
5. Determination of parameters of steam, nutrient water and condensate for PTS elements.
We accept the pressure loss in steam pipelines from the turbine to the heaters of the regenerative system in the amount:
| I selection | PVD-7. | 4% |
| II selection | PVD-6 | 5% |
| III selection | PVD-5. | 6% |
| IV selection | PVD-4. | 7% |
| V selection | PND-3. | 8% |
| VI selection | PND-2 | 9% |
| VII selection | PND-1 | 10% |
The determination of parameters depends on the design of the heaters ( see fig. 3.). In the calculated scheme, all PND and PVD superficial.
In the course of the main condensate and nutritious water from the capacitor to the boiler, we define the parameters you need.
5.1. Increased enthalpy in the condensate pump neglect. Then condensate parameters before EP:
0.04 bar, 
29 ° С, 
121.41 kJ / kg.
5.2. We adopt the heated of the main condensate in the ejector heater is 5 ° C.
34 ° C; KJ / kg.
5.3. Heated water in the gland heater (SP) we accept equal to 5 ° C.
39 ° C, 
KJ / kg.
5.4. PND-1 - disabled.
It is powered by a steam from the VI selection.
69,12 ° С, 
289.31 kJ / kg \u003d h d2 (drainage from PND-2).
° С 
4,19 ∙ 64,12 \u003d 268.66CH / kg
It is powered by a ferry from V selection.
The pressure of heating steam in the heater housing:
96.7 ° C, 
405.21 kJ / kg;
Water parameters for heater:
° С 
4,19 ∙ 91.7 \u003d 384.22 kJ / kg.
Pre-set the temperature at the expense of streaming before PND-3 
. We have:
It is powered by a ferry from IV selection.
The pressure of heating steam in the heater housing:
140.12 ° С, 
589.4 kJ / kg;
Water parameters for heater:
° С 
4.19 ∙ 135,12 \u003d 516.15 kJ / kg.
The parameters of the brass medium in the drainage cooler:
5.8. Deaerator of nutrient water.
Nutrient water deaerator operates at a constant steam pressure in the case
R d-6 \u003d 5.88 bar → T d-6 H \u003d 158 ˚С, H 'D-6 \u003d 667 kJ / kg, h "d-6 \u003d 2755,54 kJ / kg,
5.9. Nutritious pump.
PDA pump Pump 
0,72.
Pressure pressure: MPa. ° С, and the parameters of the brass medium in the drainage cooler:
Couple parameters in steam cooler:
° C; 
2833,36 kJ / kg.
We give heated in OP-7 equal to 17.5 ° C. Then the water temperature for PVD-7 is equal to ° C, and the parameters of the brass medium in the drainage cooler:
° C; 
1032.9 kJ / kg.
Nutrient water pressure after PVD-7 is:
Water parameters for proper heater.
And n with t r y to c and i
PT-80 / 100-130 / 13 LMZ.
The instructions should know:
1. Head of the Cottubbinal Workshop-2,
2. Deputy Head of the Cottubbinal Workshop for Operation-2,
3. Senior Head of Shift Station-2,
4. Head of changing station-2,
5. Head of the change in the turbine branch of the Cotturbinnian Workshop-2,
6. Cutting driver of steam turbines VI discharge,
7. Scroll driver on turbine equipment V discharge;
8. Scroll driver on turbine equipment IV discharge.
Petropavlovsk-Kamchatsky
OJSC Energy and Electrification "Kamchatskenergo".
Branch "Kamchatka CHP".
I argue:
Chief Engineer of the branch of Kamchatskenergo OJSC KTEC
Bolothenyuk Yu.N.
“ “ 20 g
And n with t r y to c and i
Operating steam turbine
PT-80 / 100-130 / 13 LMZ.
Duration of the instruction:
with "____" ____________ 20
by "____" ____________ 20
Petropavlovsk - Kamchatsky
1. General Provisions……………………………………………………………………6
1.1. Criteria for safe operation of the steam turbine PT80 / 100-130 / 13 .................... 7.
1.2. Technical data of the turbine ..................................................................... ... ... ..13
1.4. Protection of the turbine ..........................................................................................................18
1.5. The turbine must be emergency stopped with a broken vacuum manually ............ ......22
1.6. The turbine should be immediately stopped ................................................ ... ...22
The turbine must be unloaded and stopped in the period,
determined by the main engineer of the power plant .............................................................23
1.8. Long operation of the turbine with a nominal power is allowed ..................... ...23
2. Short description The design of the turbine ....................................... .. ...23
3. The oil supply system of the turbine unit ....................................... .. ...25
4. The generator shaft seal system ............................................ .... .... ...26
5. The turbine regulation system .................................................. ... ...30
6. Technical data and a description of the generator .................................... .... ....31
7. Technical characteristics and description of the condensation unit ....34
8. Description I. technical specifications Regenerative installation ......37
Description and technical characteristics of the installation for
heating of the network water ............................................................ ... ...42
10. Preparation of a turbine unit for launching ................................................. ...44
10.1. General provisions ....................................................................................... ... .44
10.2. Preparation for inclusion in the operation of the oil system ....................................... ... ........46
10.3. Preparation of the regulatory system for start ........................................................................ .49
10.4. Preparation and start of a regenerative and condensation unit ............................................... 49
10.5. Preparation for inclusion in the operation of the installation for heating the network water .................. ..... 54
10.6. Warning steam pipes to GPZ .........................................................................................
11. Starting a turboaggage .................................................................. .. ...55
11.1. General instructions ..............................................................................................55
11.2. Starting a turbine from a cold condition ............................................................................. ... 61
11.3. Starting a turbine from an uncomfortable state .............................................................................................................................................................................................................................................................................................................................. ... ..64
11.4. Starting a turbine from a hot state ................................................................................ ..65
11.5. Features of the launch of the turbine on the moving parameters of the fresh pair ...........................67
12. Inclusion of the production selection of a couple .................................... ...67
13. Disconnect the production selection of a couple .......................................................69
14. Inclusion of the heat selection of the pair ..................................................................69
15. Disable the heat selection of the pair .............................. ... ... ...71
16. Maintenance of the turbine during normal operation ...................... ...72
16.1 General provisions ........................................................................................................72
16.2 Maintenance of the condensation unit ....................................................................... ..74
16.3 Maintenance of regenerative installation ............................................................................76
16.4 Maintenance of the oil supply system .......................................................................... ... 87
16.5 Generator maintenance .................................................................................. 79
16.6 Maintenance of the installation for heating the network water ............................................ 80
17. Stop the turbine .........................................................................................81
17.1 General instructions on the stopping of the turbine .................................................................. 81
17.2 Stop the turbine to the reserve, as well as for repair without finding ........................ .. ... 82
17.3 Stop the turbine to repair with a discharge .................................................................... ... 84
18. Safety requirements ........................................... ......86
19. Activities for the prevention and elimination of accidents on the turbine ......88
19.1. General instructions ................................................................................................ 88
19.2. Cases of emergency stop turbine ............................................................... ... ... 90
19.3. Actions performed by technological protection of the turbine .................................... 91
19.4. The actions of the staff at the emergency on the turbine ..........................................92
20. Rules for admission to the repair of equipment ..................................... ...107
21. The procedure for admission to the tests of the turbine ......................................... ..108
Applications
22.1. Schedule Starting a turbine from a cold condition (metal temperature
FLOW in the steam area less than 150 ˚С) .......................................................................... .. ... 109
22.2. Tourbin start schedule after idle 48 hours (metal temperature
FLOLD in the steam area 300 ˚С) ........................................................................ ..110
22.3. Tourbin start schedule after idle 24 hours (metal temperature
FLOW in the steam area 340 ˚С) ..................................................................... .. ... 111
22.4. Tourbin start schedule after idle 6-8 hours (metal temperature
FLOLD in the 420 ˚С steam area) ........................................................................ .112
22.5. Tourbin start schedule after idle 1-2 hours (metal temperature
FLOLD in the 440 ˚С steam area) .......................................................................... 113
22.6. Estimated turbine start-up graphics on nominal
the parameters of fresh steam ............................................................................................. ... 114
22.7. Longitudinal incision of the turbine ..................................................................... .. ... 115
22.8. Turbine regulating circuit ............................................................................................................... ...
22.9. Thermal scheme of turbo installation ..........................................................................................................................................................................................................................................................................
23. Additions and changes ......................................................... ... ....119
General.
Turbine steam type PT-80 / 100-130 / 13 LMZ with a production and 2-speed heat selection of steam, a rated power of 80 MW and a maximum 100 MW (in a certain combination of adjustable selections) is intended for direct drive of the AC generator of the TWF-110-2E U3 with a capacity of 110 MW mounted on a common foundation with a turbine.
List of abbreviations and symbols:
AZV - high pressure automatic shutter;
VPU - grinding device;
GMN is the main oil pump;
GPZ - the main steam valve;
Kos - valve reverse with the servomotor;
Ken - condensate electric pump;
Mut is a turbine control mechanism;
Ohms - power limiter;
PVD - High Pressure Heaters;
PND - low pressure heaters;
PMN - launcher oil electric pump;
Mon - Couple cooler seals;
PS - seal cooler seals with ejector;
PSG-1 - Network heater of the lower selection;
PSG-2 - the same, upper selection;
Peng - nutritional electric pump;
RVD - high pressure rotor;
RK - regulating valves;
RTN - low pressure rotor;
RT - turbine rotor;
FVD - high pressure cylinder;
CND - low pressure cylinder;
RMN - backup oil pump;
AMN - emergency oil pump;
RPDS - Oil pressure drop relay in the lubrication system;
RPR - steam pressure in the production selection chamber;
P - pressure in the lower heat selection chamber;
R - the same, upper heat selection;
DPO - steam consumption in production selection;
D - consumption total on PSG-1.2;
Kaz - automatic shutter valve;
MNUV - Melonasos of the seal of the generator shaft;
Legs - generator cooling pump;
SAR - automatic regulation system;
EGP - electro-hydraulic converter;
Kis - Executive Solenoid Valve;
Then - heat selection;
For production selection;
MO - oil cooler;
RPD - pressure drop regulator;
PSM - mobile oil separator;
ZG - hydraulic shutter;
BD - damper dam;
It is an oil injector;
RS - speed controller;
RD - pressure regulator.
1.1.1. For the power of the turbine:
Maximum turbine power with fully included
regeneration and certain combinations of industrial and
heat selections ......................................................................................... ... 100 MW
Maximum power of the turbine on the condensation mode with the disconnected PVD-5, 6, 7 .............................................................................. ... 76 MW
The maximum power of the turbine on the condensation mode when the PND-2, 3, 4 ................................................................................ .... 71mW
Maximum turbine power on condensation mode with disconnected
PND-2, 3, 4 and PVD-5, 6, 7 ..................................................................................................68 MW
which is included in the work of PVD-5,6,7 .................................................................10 MW
The minimum power of the turbine on the condensation mode at
which is included in the work of the PND-2 plum pump ..................................................................20 MW
The minimum power of the turbine unit at which is included in
work adjustable selection of the turbine ................................................................................... 30 MW
1.1.2. By frequency of rotation of the turbine rotor:
Rotation frequency of rotation of the turbine rotor ................................................................. ..3000 rpm
Rotation frequency of rotor rotor turbine grinding
device ....................................................................................................... ..
The limit deviation of the rotor of the turbine rotor
which is turned off the turbine unit ..........................................................................................
3360 rpm
Critical frequency of rotation of the rotor of the turbogenerator .......................................... .1500 rpm
Critical frequency of rotation of the rotor of the turbine low pressure ......................... ...... 1600 rpm
Critical frequency of rotation of the rotor of the high pressure of the turbine ......................... ... .1800 rpm
1.1.3. According to the consumption of superheated steam on the turbine:
Nominal steam consumption on a turbine when working on condensation mode
with a fully enabled regeneration system (at rated power
turboaggage, equal to 80 MW) ........................................................................ 305 tons / hour
Maximum steam consumption on the turbine when the system is enabled
regeneration, regulated by industrial and heat seats
and closed regulating valve №5 ... .. ....................................................................... ..415 t / h
Maximum steam consumption on the turbine .............................................................................. 470 t / h
mode with disconnected PVD-5, 6, 7 .................................................................. ..270 t / h
Maximum steam consumption on the turbine when working on a condensation
mode with PND-2, 3, 4 ................................................................................ ..260t / hour
Maximum steam consumption on the turbine when working on a condensation
mode with PND-2, 3, 4 and PVD-5, 6, 7, 7 ......................................................................................... .. ... 230T / H
1.1.4. Over the absolute pressure of superheated steam before AZV:
Nominal absolute pressure of superheated steam before AZV ................................130 kgf / cm 2
Permissible reduction in the absolute pressure of superheated steam
before the AZV, when working the turbine ....... ..................................................................... 125 kgf / cm 2
Permissible increase in the absolute pressure of superheated steam
before the AZV when working the turbine. ........................................................................................... 135 kgf / cm 2
Maximum deviation of absolute pressure of superheated steam before AZV
during the operation of the turbine and with the duration of each deviation not more than 30 minutes ....... ..140 kgf / cm 2
1.1.5. On the temperature of the superheated steam before AZV:
Rated temperature of overheated steam before AZV .. ..................................................... .. ... ..555 0
Permissible decrease in the temperature of the superheated steam
before the AZV when the turbine is working .. ................................................................... ......... 545 0
Permissible increase in the temperature of the superheated steam before
AZV when working the turbine .................................................................................................. .. 560 0 C
Maximum deviation of the temperature of the superheated steam before AZV with
work turbine and duration of each deviation no more than 30
minutes ....................................................................................................... ............................................................................................................ 565 0
The minimum deviation of the temperature of the superheated steam before AZV is
which is turned off the turbine unit ............................................................ ... 425 0
1.1.6. Over the absolute pressure of steam in the regulating steps of the turbine:
with the cost of superheated steam on the turbine up to 415 tons per hour. .. .......................................... ... 98.8 kgf / cm 2
Maximum absolute steam pressure in the regulating stage of the CT
when working the turbine on condensation mode with disconnected PVD-5, 6, 7 .... .......... ... 64 kgf / cm 2
Maximum absolute steam pressure in the regulating stage of the CT
when the turbine is working on condensation mode with the TNN-2, 3, 4, 4 ............. ... 62 kgf / cm 2
Maximum absolute steam pressure in the regulating stage of the CT
when operating a turbine on condensation mode with PND-2, 3, 4 disconnected
and PVD-5, 6.7 ................................................................................................................... 55 kgf / cm 2.
Maximum absolute steam pressure in the chamber of the overload
valve TsVD (for the 4th stage) with the expenditures of the superheated steam on the turbine
more than 415 tons per hour .................................................................................................... 83 kgf / cm 2
Maximum absolute steam pressure in the chamber regulating
central CNDs (for the 18th Step) .......................................................................................... ..13,5 kgf / cm 2
1.1.7. Over the absolute pressure of steam in the regulated seboctions of the turbine:
Permissible increase in the absolute pressure of steam in
adjustable production selection .................................................................. 16 kgf / cm 2
Permissible decrease in the absolute pressure of steam in
adjustable production selection .................................................................. 10 kgf / cm 2
Maximum deviation of the absolute pressure of steam in an adjustable production selection in which safety valves are triggered .............................................................................................................
upper heat selection ................................................................... ... ..2.5 kgf / cm 2
upper heat selection ........................................................................................................
Maximum deviation of the absolute pressure of steam in adjustable
upper heat selection in which
safety valve .................................................................................. 3.4 kgf / cm 2
Maximum deviation of absolute steam pressure in
adjustable upper heat selection in which
turboaggage turns off the protection ....................................................................... ... 3.5 kgf
Permissible increase in the absolute pressure of steam in adjustable
lower heating selection ........................................................................ 1 kgf / cm 2
Permissible reduction in the absolute pressure of steam in adjustable
lower heat intake .....................................................................................................................
Maximum allowable decrease in pressure drops between the chamber
lower heat selection and turbine condenser ............................... ... to 0.15 kgf / cm 2
1.1.8. By steam consumption in adjustable turbine selections:
Nominal steam consumption in adjustable production
selection ....................................................................................................................................
Maximum steam consumption in adjustable production ...
nominal power of the turbine and disconnected
the heat selection ........................................................................................ ......... 245 t / h
Maximum steam consumption in adjustable production
selection at absolute pressure in it, equal to 13 kgf / cm 2,
reduced to 70 MW of the turbine power and disconnected
heat selection ................................................................................................ 300 tons
Nominal steam consumption in adjustable top
heat selection ............................................................................................... ... 132 tons
and a disconnected production selection ............................................................................. 150 t / h
Maximum steam consumption in adjustable top
cellular selection with reduced to 76 MW power
turbines and disconnected production selection .................................................................. 220 t / h
Maximum steam consumption in adjustable top
cellular selection at rated power of the turbine
and reduced to 40 tons / hour steam consumption in the production selection ............................................... 200 m / h
Maximum steam consumption in PSG-2 at absolute pressure
in the upper heat selection of 1.2 kgf / cm 2 .................................................................................... ... 145 tons
Maximum steam consumption in PSG-1 at absolute pressure
in the lower heat reference selection 1 kgf / cm 2 .........................................................................220 t / h
1.1.9. In terms of temperature in the turbine selection:
Nominal pair temperature in adjustable production
selection after OU-1, 2 (3.4) .................................................................................... ..280 0 C
Permissible increase in temperature steam in adjustable
production selection after OU-1, 2 (3.4) ............................................................ 285 0 C
Permissible decrease in steam temperature in adjustable
production selection after OU-1.2 (3.4) .................................................................................................................. ... 275 0 C
1.1.10. On the thermal state of the turbine:
Maximum speed increase in metal temperature
... .. .................................... ..15 0 c / min.
bypass pipes from AZV to regulating valves
at the temperatures of the superheated steam below 450 grads. ................................................................... 25 0 C
Maximum allowable metal temperature difference
bypass pipes from AZV to regulating valves
at the temperature of the superheated steam above 450 degrees ..................................................................20 0 С
Maximum allowable difference in metal temperatures
and Niza FVD (CND) in the area of \u200b\u200bthe steam room .................................................................................... ..50 0
Maximum allowable metals temperature difference in
cross section (width) horizontal flanges
cylinder connector without inclusion of the heating system
flanges and Spreads CLOC .. .................................................................................................... 80 0
cLOC connector with flanges and spills enabled ..................................................... .. ... 50 0 C
in cross section (width) horizontal flanges
cLOC connector with flanges and spills enabled .......................................... -25 0 with
Maximum allowable metals temperature difference between the upper
and the bottom (right and left) Flanges of the FLOLD when enabled
heating flanges and spills ............................................................................................ 10 0
Maximum allowable positive metals temperature difference
between flanges and studs FED with heating enabled
flanges and studs .......................................................................................................... .20 0 C
Maximum allowable negative difference in metal temperatures
between the flanges and the studs of the CLAS when the heating is enabled and the flanges and studs .................................................................................................................................................................. 20 0 S.
Maximum allowable difference in metal temperatures in thickness
the walls of the cylinder, measured in the zone of the regulating stage of the CLAD .... .............................. .35 0 s
bearings and stubborn turbine bearing .......................................................90 0 C
The maximum permissible temperature of the liners of the reference
generator bearings ........................................................................ .. ..................................................................
1.1.11. On the mechanical state of the turbine:
Maximum permissible shortening of the RVD relative to CLAST .... .....................................-2 mm
Maximum permissible RVD lengthening relative to CLAST .... ..................................... + 3 mm
Maximum allowable shortening of the RND relative to the CND .... ........................ .. ......... -2,5 mm
Maximum permissible elongation of the RND relative to the CND ....... ........................ .. ............................................................................
Maximum permissible curvature of the turbine rotor .......................................................... ..0 mm
Maximum permissible maximum curvature value
turtaaggate shaft when passing critical frequencies of rotation .............................0.25 mm
............................................................... generator side. ..................... .. ... 1.2 mm
Maximum allowable axial shift of the turbine rotor in
side of the control unit ........................................................................................ .1,7 mm
1.1.12. According to the vibration state of the turbine unit:
Maximum allowable vibration of turbine bearings
in all modes (except critical speed of rotation) ................... ........................ .4.5 mm / s
with an increase in the bearing vibration, more than 4.5 mm / s ................................. 30 days
Maximum allowable duration of the turbine unit
with an increase in the bearing vibration, more than 7.1 mm / s .................................. 7
Emergency raising of vibrations of any of the supports of the rotor ...................................... 11.2 mm / s
Emergency sudden simultaneous increase in vibration
supplement of one rotor, or adjacent supports, or two components of vibration
one support from any initial value ...................................................... ... 1mm and more
1.1.13. By consumption, pressure and temperature of circulation water:
The total consumption of cooling water to the turbine unit ............................................ .8300 m 3 / h
The maximum cooling water consumption through the condenser .... .............................. ..8000 m 3 / hour
The minimum cooling water consumption through the capacitor ................... .................2000 m 3 / hour
Maximum water consumption through the built-in capacitor bundle ............................ 1500 m 3 / h
Minimum water consumption through the built-in condenser beam .............................................300 m 3 / h
The maximum temperature of the cooling water at the entrance to the condenser .... ....................................................................................................................................... ..33 0 C
The minimum temperature of circulation water at the entrance to
condenser in the period of minus temperatures of outdoor air ......... ... .................. .8 0 s
The minimum pressure of circulation water in which the AVR circulating pumps TN-1,2,3,4 ....................................................................................................................
Maximum circulation water pressure in the pipe system
the left and right halves of the capacitor .............................................. .......... ......... .2,5 kg / cm 2
Maximum absolute water pressure in the pipe system
built-in condenser beam. ........................................................................8 kgf / cm 2
Nominal hydraulic resistance of the condenser when
clean tubes and flow rate of circulating water 6500 m3 /chas......................................3,8 m. waters. Art.
Maximum temperature difference of circulation water between
the entrance of it into the capacitor and the exit from it ...........................................................10 0 s
1.1.14. By consumption, pressure and temperature of steam and himobassive water into the condenser:
Maximum flow of himobassive water into the condenser .................. .. .................100 t / h.
Maximum steam consumption in the condenser in all modes
exploitation ............................................................................................................... 220 tons / hour
Minimum steam consumption across Cund Turbines in Condenser
with a closed rotary diaphragm ............................................................................ ...... 10 t / h.
The maximum permissible temperature of the exhaust of the CND .................................. ..70 0 with
The maximum permissible temperature of himobassive water,
condenser entering ...................................................................... ......... 100 0 C.
Absolute steam pressure in the exhaust part of the CND in which
the atmospheric valve-diaphragms are triggered .................................................................. ..1.2 kgf / cm 2
1.1.15. Over absolute pressure (vacuum) in the turbine condenser:
Nominal absolute pressure in the condenser ...................................................... 0.035 kgf / cm 2
The permissible decrease in vacuum in the condenser at which warning alarm is triggered ................... ........................... .. ......... ...- 0.91 kgf / cm 2
Emergency decrease in vacuum in a condenser in which
Turboaggage turns off the protection ............... ...................................................... ....- 0.75 kgf / cm 2
reset in it hot flows ... ..................................................................................................................................................
Permissible vacuum in the condenser when starting the turbine before
the shaft of the turboaggage .................................................................................. -0.75 kgf / cm 2
Permissible vacuum in the condenser when starting a turbine at the end
exposures of its rotor with a frequency of 1000 rpm ..............................................................-0.95 kgf / cm 2
1.1.16. By pressure and temperature of a pair of seals of the turbine:
Minimum absolute pair pressure on turbine seals
behind the pressure regulator ........................................................................... ... ..........1.1 kgf / cm 2
Maximum absolute pair pressure on turbine seals
for pressure regulator ....................................................................................................................
Minimum absolute pair pressure behind turbine seals
to the regulator of pressure maintenance ....... ........................................................................................................
Maximum absolute pair pressure behind turbine seals ...
to maintain the pressure regulator .................................................................. .. ... .1,5 kgf / cm 2
The minimum absolute pressure of the steam in the second seal chambers ........................ ... 1.03 kgf / cm 2
The maximum absolute pressure of the steam in the second chambers of the seals ........................ ..1.05 kgf / cm 2
Rated temperature pair on seals ............................................................ .150 0 C
1.1.17. On the pressure and temperature of oil on the lubrication of the bearings of the turbine unit:
Nominal overpressure of oil in the bearing lubrication system
turbines to butter cooler. .............................................................................. .. ........................................................................................
Nominal overpressure of oil in the lubrication system
bearings on shaft turbine level ............ ... ............................................. .1kgs / cm 2
at the axis level of the turbine truck in which it works
warning alarm .................................................................................
Overpressure oils in the bearings lubrication system
on the turbine shaft at that activates PMH ....................................... .0,7 kgf / cm 2
Excess oil pressure in the bearing lubrication system
on the turbine shaft at that activates AMS ................................. .. ... .0,6 kgf / cm 2
Excess oil pressure in the bearing lubrication system at the level
turbine shaft axis wherein CPG is disconnected protection ........................... ...... .. ... 0.3 kgf / cm 2
Emergency excess oil pressure in the bearing lubrication system
at the axis level of the turbine tree at which the turbine unit turns off the protection .............................................................................................................. 3 kgf / cm 2
Rated oil temperature on the lubricant bearings of the turbine unit .............................................40 0 C
Maximum allowable oil temperature on bearing lubrication
turbineaggate .................................................................................................................. ... 45 0
The maximum allowable oil temperature on plum from
bearings of the turbo unigate ............................................................................................... .... 65 0 C
Emergency temperature of oil plum from bearings
turbineaggate ..................................................................................................................... 75 0 C
1.1.18. By pressure of the oil in the turbine regulation system:
Excess oil pressure in the turbine control system created by the PMN ........................................................................................................... .. ... 18 kgf / cm 2
Excessive oil pressure in the turbine control system created by the GMN ................................................................................................................................................................................................................................................... ..
Outlet oil pressure in the turbine control system
In which there is a ban on closing the valve on the pressure and on the disconnection of the PMN .... ..........17,5 kgf / cm 2
1.1.19. By pressure, level, consumption and oil temperature in the turbine generator shaft seal system:
Excess oil pressure in the sealing system of the turbogenerator shaft at which a backup alternating current is turned on to operation ........................................................................ 8 kgf / cm 2
Excess oil pressure in the sealing system of the turbogenerator shaft at which the AVR is turned on to work
mNUV standby DC ........................................................................ ..7 kgf / cm 2
The permissible minimum difference between the oil pressure on the shaft seals and hydrogen pressure in the housing of the turbogenerator .................................04 kgf / cm 2
The permissible maximum difference between the oil pressure on the shaft seals and the hydrogen pressure in the housing of the turbogenerator ......................... ... ..... 0.8 kgf / cm 2
Maximum difference between the pressure of the oil inlet and pressure
oil at the output of MFG in which you need to go to the backup oil filter generator .................................................................................... .1kgs / cm 2
Rated oil temperature at the exit C could ...................................................... ..40 0 C
The permissible increase in the oil temperature at the exit C could .................................. ...... .45 0 s
1.1.20. In terms of temperature and flow of nutrient water through a group of PVD turbines:
The nominal temperature of nutrient water at the entrance to the PVD group .... ............................164 0 s
The maximum temperature of nutrient water at the exit from the PVD group at the rated power of the turbine unit ................................................................................ .. ... 249 0 C
Maximum feed water consumption through the PVD pipe system ..................... ... ... ... 550 tons per hour
1.2. Technical data of the turbine.
| Nominal power turbine | 80 MW |
| Maximum turbine power with fully included regeneration under certain combinations of industrial and heat selections defined by the diagram of modes | 100 MW |
| Absolute pressure of fresh steam automatic locking valve | 130 kgf / cm² |
| Steam temperature before locking valve | 555 ° C. |
| Absolute pressure in the condenser | 0.035 kgf / cm² |
| Maximum steam consumption through a turbine when working with all selections and with any combination of them | 470 t / h |
| Maximum passage pass to condenser | 220 t / h |
| Cooling water consumption in the condenser at the estimated temperature at the inlet in the capacitor 20 ° C | 8000 m³ / h |
| Absolute pair pressure of adjustable production selection | 13 ± 3 kgf / cm² |
| Absolute pair pressure of adjustable upper heat selection | 0.5 - 2.5 kgf / cm² |
| Absolute steam pressure of adjustable lower heat selection with a single-stage network water heating scheme | 0.3 - 1 kgf / cm² |
| Nutrient water temperature after PVD | 249 ° C. |
| Specific consumption Couple (Guaranteed Pot LMZ) | 5.6 kg / kWh |
Note: Starting a turbine unit, stopped due to the increase (change) of vibration, is allowed only after a detailed analysis of the causes of vibration and in the presence of the resolution of the main engineer of the power plant made by him personally in the operational journal of the station's shift.
1.6 The turbine must be immediately stopped in the following cases:
· Increase the rotational speed above 3360 rpm.
· Detection of rupture or through cracks on unconnected areas of the oil pipelines, a steam room, pair distribution nodes.
· The appearance of hydraulic shocks in fresh steam steam plates or in the turbine.
· Emergency decrease in vacuum to -0.75 kgf / cm² or overvaluation of atmospheric valves.
· A sharp decrease in the temperature of fresh
