CN219317016U - Auxiliary condensate pump equipment for saving energy of turbine condensate system - Google Patents
Auxiliary condensate pump equipment for saving energy of turbine condensate system Download PDFInfo
- Publication number
- CN219317016U CN219317016U CN202320625663.7U CN202320625663U CN219317016U CN 219317016 U CN219317016 U CN 219317016U CN 202320625663 U CN202320625663 U CN 202320625663U CN 219317016 U CN219317016 U CN 219317016U
- Authority
- CN
- China
- Prior art keywords
- condensate pump
- condensate
- pipeline
- pump
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000004134 energy conservation Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 abstract description 9
- 239000013589 supplement Substances 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
An auxiliary condensate pump device for saving energy of a turbine condensate system. At present, closed water supplementing after the condensate system stops running adopts a water supplementing pump to supplement water, and the water level is too high due to internal leakage of a water supplementing pipeline of the water supplementing pump and drainage of the machine side in the condenser. An auxiliary condensate pump device for energy conservation of a turbine condensate system, comprising: the air condenser (1), the A condensate pump (2) and the B condensate pump (3), one end of the A condensate pump is connected with an inlet pipeline (4) of the A condensate pump, the other end of the A condensate pump is connected with an outlet pipeline (5) of the A condensate pump, one end of the B condensate pump is connected with an inlet pipeline (6) of the B condensate pump, the other end of the B condensate pump is connected with an outlet pipeline (7) of the B condensate pump, the inlet pipeline of the A condensate pump and the inlet pipeline of the B condensate pump are connected with the air condenser, and the outlet pipeline of the A condensate pump and the outlet pipeline of the B condensate pump are connected with a main pipe (8) of the condensate pump. The utility model is applied to the field of turbine condensate systems.
Description
Technical Field
The utility model relates to auxiliary condensate pump equipment for saving energy of a turbine condensate system.
Background
The first-stage two turbines of the Jinggang mountain power plant are 73A type domestic introduction type 300MW units produced by Harbin turbine plants, and the types of the two turbines are subcritical, uniaxial, double-cylinder double-exhaust steam, high-medium pressure combined cylinders, low-pressure double-flow and one-time intermediate reheat condensing steam turbines. The boiler adopts an SG-1025/18.24-M848 type introduced subcritical natural circulation drum furnace of Shanghai boiler plant. The condensate pump adopts NLT350-400X-6-D condensate pump of Shanghai Kaiser company, and in operation, one power frequency is reserved, and the other frequency is changed to operate. If the frequency conversion fails, the power frequency operation is adopted. The rated power of the coagulation pump motor is 1000kW, the voltage is 6kV, and the synchronous rotating speed is 1500pm.
The average startup and shutdown times in the year are 16 times through counting the parameters of two 300MW steam turbine sets in one period of the Huanggangshan power plant in the last 5 years. After the unit is stopped, the vacuum on the steam side of the condenser is reduced to zero, so that the condensate pump needs to be operated for a period of time continuously to prevent the low-pressure cylinder and the throat part of the condenser from being overtemperature, and the requirements of low-pressure cylinder water spraying and temperature reduction, condenser water curtain water spraying and miscellaneous water supply are met. Under the condition of ensuring that the exhaust temperature of the low-pressure cylinder is not more than 65 ℃, the required temperature reduction water spray quantity is smaller, and the maximum water spray quantity is not more than 60t/h. However, because the power of the condensate pump is larger, the water supply to the steam drum is stopped after the unit is stopped, and in order to prevent cavitation caused by low flow of the condensate pump and ensure the operation safety of the condensate pump, the flow rate of the condensate is required to be larger than 240t/h by controlling the opening of a minimum flow recirculation door of the condensate pump, meanwhile, the damage to the condensate pump caused by long-time operation of the small flow is larger, the power consumption of a factory is larger, and the minimum flow recirculation electric door of the condensate is frequently opened and closed, so that equipment loss is caused.
Meanwhile, the closed water system still needs to run for a long time during the shutdown period of the unit to cool and maintain the EH oil temperature within a specified normal range, and the closed water supplementing water after the shutdown of the condensation water system adopts a supplementing water pump to supplement water. Because of leak in moisturizing pump moisturizing pipeline and the drainage of machine side lead to the water level too high in the condenser, often need to drain unnecessary condensate water to the trench through congeal pump entry filter screen drain door, and closed water system needs the normal supplementary demineralized water again, causes the two-way waste of power plant water.
Disclosure of Invention
The utility model aims to provide auxiliary condensate pump equipment for saving energy of a turbine condensate system.
The above object is achieved by the following technical scheme:
an auxiliary condensate pump device for energy conservation of a turbine condensate system, comprising: one end of the A condensate pump is connected with an inlet pipeline of the A condensate pump, the other end of the A condensate pump is connected with an outlet pipeline of the A condensate pump, one end of the B condensate pump is connected with an inlet pipeline of the B condensate pump, the other end of the B condensate pump is connected with an outlet pipeline of the B condensate pump,
an inlet pipeline of the condensate pump A and an inlet pipeline of the condensate pump B are connected with a condenser, an outlet pipeline of the condensate pump A and an outlet pipeline of the condensate pump B are connected with a condensate header pipe, the condensate header pipe is respectively connected with a circulation pipeline and a pipeline from a condensate system to a miscellaneous water system with minimum flow, and the minimum flow is connected with the condenser in the circulation pipeline;
the inlet pipeline of the condensate pump A and the inlet pipeline of the condensate pump B are respectively provided with inlet filter screens, and a filter screen water drain pipeline is arranged between the inlet filter screens of the two pipelines.
The auxiliary condensate pump equipment for saving energy of the turbine condensate system is characterized in that a condensate pump outlet pipeline A and a condensate pump outlet pipeline B are respectively provided with a condensate pump outlet check door and a condensate pump outlet electric door;
and the inlet pipeline of the condensate pump A and the inlet pipeline of the condensate pump B are respectively provided with an electric door of the condensate pump inlet.
The auxiliary condensate pump equipment for saving energy of the turbine condensate system is characterized in that the minimum flow is provided with a front electric door, a minimum flow recirculation regulating door and a rear electric door for minimum flow recirculation respectively on the circulating pipeline.
The auxiliary condensate pump equipment for saving energy of the turbine condensate system is characterized in that a condensate to miscellaneous water electric door is arranged on a pipeline from the condensate system to the miscellaneous water system.
The utility model has the beneficial effects that:
1. the utility model aims to save plant power and water, furthest reduce production cost, and through analysis and research, a low-power auxiliary condensate pump is additionally arranged in a condensate pump pit of an original unit, an inlet pipeline is connected to a water drain pipeline of an inlet filter screen of the condensate pump, an outlet is connected to a condensate main pipe at an outlet of the condensate pump to a hybrid water main pipe (both interfaces avoid an upper opening of a main pipeline of the condensate main pipe and can meet normal supply of condensate), so that a large amount of plant power and desalted water can be saved during the shutdown period of the unit.
2. According to the utility model, after the unit is shut down, the condensate pump is switched to the auxiliary condensate pump to operate, so that the condensate water meeting the requirement of small flow can be kept to be used for low-pressure cylinder water spray temperature reduction and water curtain protection, and water supplementing can be provided for the water reuse system, the need of switching the unit water reuse from the condensate system to the water supplementing pump to supply water after the condensate water is shut down can be avoided, and the water supplementing amount of the demineralized water to the condenser after the shut down is greatly reduced. Meanwhile, because the water feeding time of the unit starting process is longer, the auxiliary condensate pump after transformation can also be used for feeding water before starting the deaerator, and the running time of the 6kV high-power condensate pump is further reduced. Therefore, the small auxiliary condensate pump is added to the condensate system to optimize and reform the condensate system.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. condenser, 2, A condensate pump, 3, B condensate pump, 4, A condensate pump inlet pipeline, 5, A condensate pump outlet pipeline, 6, B condensate pump inlet pipeline, 7, B condensate pump outlet pipeline, 8, condensate main pipe, 9, minimum flow is in the circulation pipeline, 10, condensate system to miscellaneous water system pipeline, 11, entry filter screen, 12, filter screen drain pipe, 13, condensate pump outlet check door, 14, condensate pump outlet electric door, 15, condensate pump inlet electric door. 16. The front electric door is adjusted, 17, the minimum flow recirculation adjusting door, 18, the minimum flow recirculation rear electric door, 19 and the condensate water to the miscellaneous water electric door.
Detailed Description
Examples
An auxiliary condensate pump device for energy conservation of a turbine condensate system, comprising: the condenser 1, the A condensate pump 2 and the B condensate pump 3, one end of the A condensate pump is connected with an inlet pipeline 4 of the A condensate pump, the other end of the A condensate pump is connected with an outlet pipeline 5 of the A condensate pump, one end of the B condensate pump is connected with an inlet pipeline 6 of the B condensate pump, the other end of the B condensate pump is connected with an outlet pipeline 7 of the B condensate pump,
the inlet pipeline of the condensate pump A and the inlet pipeline of the condensate pump B are connected with a condenser, the outlet pipeline of the condensate pump A and the outlet pipeline of the condensate pump B are connected with a main condensate pipe 8, the main condensate pipe is respectively connected with a circulation pipeline 9 with minimum flow rate and a pipeline 10 from a condensate system to a miscellaneous water system, and the minimum flow rate is connected with the condenser in the circulation pipeline; an inlet filter screen 11 is respectively arranged on the inlet pipeline of the condensate pump A and the inlet pipeline of the condensate pump B, and a filter screen drain pipeline 12 is arranged between the inlet filter screens of the two pipelines.
Examples
The auxiliary condensate pump equipment for saving energy of the turbine condensate system is characterized in that a condensate pump outlet pipeline and a condensate pump outlet pipeline are respectively provided with a condensate pump outlet check valve 13 and a condensate pump outlet electric door 14, and a condensate pump inlet pipeline are respectively provided with a condensate pump inlet electric door 15.
Examples
The auxiliary condensate pump equipment for saving energy of the turbine condensate system is characterized in that a front regulating electric door 16, a minimum flow recirculation regulating door 17 and a rear minimum flow recirculation electric door 18 are respectively arranged on the circulation pipeline at the minimum flow. The electric door 19 for condensing water to miscellaneous water is installed on the pipeline from the condensed water system to the miscellaneous water system.
A small-power auxiliary condensate pump is additionally arranged in a condensate pump pit of an original unit, the pump outlet pressure is 1.0MPa, the flow is 100t/h, and the power is 45kW. The inlet pipeline is connected to the water drain pipeline of the inlet filter screen of the condensate pump, and the outlet is connected to the condensate mother pipe at the outlet of the condensate pump and the impurity mother pipe (the two interfaces avoid the upper opening of the main pipeline of the condensate mother pipe and can meet the normal supply of condensate). The inlet pipe of the newly added auxiliary condensate pump is provided with 1 manual valve and 1 electric valve, the outlet pipe is provided with 1 electric valve, one check valve and 1 manual valve, and the newly added pipelines are all made of the same steel material as the original condensate pipeline.
Claims (4)
1. An auxiliary condensate pump device for energy conservation of a turbine condensate system, comprising: the device comprises a condenser, an A condensate pump and a B condensate pump and is characterized in that: one end of the A condensate pump is connected with an inlet pipeline of the A condensate pump, the other end of the A condensate pump is connected with an outlet pipeline of the A condensate pump, one end of the B condensate pump is connected with an inlet pipeline of the B condensate pump, the other end of the B condensate pump is connected with an outlet pipeline of the B condensate pump,
an inlet pipeline of the condensate pump A and an inlet pipeline of the condensate pump B are connected with a condenser, an outlet pipeline of the condensate pump A and an outlet pipeline of the condensate pump B are connected with a condensate header pipe, the condensate header pipe is respectively connected with a circulation pipeline and a pipeline from a condensate system to a miscellaneous water system with minimum flow, and the minimum flow is connected with the condenser in the circulation pipeline;
the inlet pipeline of the condensate pump A and the inlet pipeline of the condensate pump B are respectively provided with inlet filter screens, and a filter screen water drain pipeline is arranged between the inlet filter screens of the two pipelines.
2. The auxiliary condensate pump apparatus for turbine condensate system energy conservation of claim 1, wherein: the outlet pipeline of the condensate pump A and the outlet pipeline of the condensate pump B are respectively provided with a condensate pump outlet check valve and a condensate pump outlet electric door;
and the inlet pipeline of the condensate pump A and the inlet pipeline of the condensate pump B are respectively provided with an electric door of the condensate pump inlet.
3. The auxiliary condensate pump apparatus for turbine condensate system energy conservation of claim 1, wherein: the minimum flow is provided with a front regulating electric door, a minimum flow recirculation regulating door and a minimum flow recirculation rear electric door on the circulation pipeline respectively.
4. The auxiliary condensate pump apparatus for turbine condensate system energy conservation of claim 1, wherein: and a condensation water-to-miscellaneous water electric door is arranged on the condensation water system-to-miscellaneous water system pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320625663.7U CN219317016U (en) | 2023-03-27 | 2023-03-27 | Auxiliary condensate pump equipment for saving energy of turbine condensate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320625663.7U CN219317016U (en) | 2023-03-27 | 2023-03-27 | Auxiliary condensate pump equipment for saving energy of turbine condensate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317016U true CN219317016U (en) | 2023-07-07 |
Family
ID=87005335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320625663.7U Withdrawn - After Issue CN219317016U (en) | 2023-03-27 | 2023-03-27 | Auxiliary condensate pump equipment for saving energy of turbine condensate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219317016U (en) |
-
2023
- 2023-03-27 CN CN202320625663.7U patent/CN219317016U/en not_active Withdrawn - After Issue
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109441575B (en) | Method for operating heat supply network system of steam combined cycle generator set in heat supply period | |
| CN110500148B (en) | High-back-pressure heat supply and monitoring method and system for large steam turbine generator unit | |
| CN109869786B (en) | Steam extraction and heat supply integrated system for power peak regulation of combined cycle unit and operation method of steam extraction and heat supply integrated system | |
| CN205477780U (en) | A low pressure bypass turbine system for high load condition of large -scale steam turbine | |
| CN109854315B (en) | Heating system for gas-steam combined cycle unit steam extraction integration and operation method thereof | |
| CN112361324A (en) | Energy-saving and consumption-reducing method for condensate pump of double reheating unit | |
| CN112879107A (en) | Shaft seal auxiliary steam source heat standby device and control method thereof | |
| CN113404551A (en) | Shaft seal steam supply system of gas-steam combined cycle heat supply unit and operation method | |
| CN207245763U (en) | A kind of high temperature gas cooled reactor Turbine Steam gland sealing steam supply system | |
| CN109869784B (en) | Combined cycle device for steam extraction integration and heat accumulation peak shaving coupling and operation method thereof | |
| CN212614913U (en) | Safe and energy-saving system for shaft seal steam of supercritical unit | |
| CN219317016U (en) | Auxiliary condensate pump equipment for saving energy of turbine condensate system | |
| CN206190339U (en) | Two branch road heating system of cogeneration steam turbine | |
| CN112443761A (en) | System and method for improving sealing water supply performance of water supply pump set of thermal power plant | |
| CN111042879B (en) | High-load high-efficiency turbine unit with high and medium pressure cylinders cut off by separate cylinders | |
| CN202810977U (en) | Condensed steam back-heating type small-turbine driving rotation equipment system of thermal power plant | |
| CN108487955B (en) | Coal gas efficiency-increasing utilization system based on steam parameter promotion | |
| CN206636604U (en) | A kind of quick cooling system of temperature of power plant steam turbine | |
| CN112833378B (en) | Reheating system capable of improving heat supply capacity | |
| CN109882256B (en) | 135MW ultrahigh-pressure backpressure heat supply transformation steam turbine | |
| CN220267794U (en) | Wide load peak regulation system is reformed transform to flexibility of steam turbine bypass steam supply | |
| CN214464421U (en) | Shaft seal auxiliary steam source hot standby device | |
| CN215765319U (en) | Wide-range condensing 600MW unit heating system with steam flow injection | |
| CN114934817B (en) | Shaft seal steam supply system of middle-low pressure cylinder type steam turbine and operation method | |
| CN215486640U (en) | Service frequency electric water feed pump mechanical seal life-prolonging structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20230707 Effective date of abandoning: 20240229 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20230707 Effective date of abandoning: 20240229 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |