CN220366405U - Peak heat exchange system - Google Patents
Peak heat exchange system Download PDFInfo
- Publication number
- CN220366405U CN220366405U CN202321381729.9U CN202321381729U CN220366405U CN 220366405 U CN220366405 U CN 220366405U CN 202321381729 U CN202321381729 U CN 202321381729U CN 220366405 U CN220366405 U CN 220366405U
- Authority
- CN
- China
- Prior art keywords
- pipe
- peak
- water
- heat exchange
- communicated
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 3
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to a peak heat exchange system, which comprises a boiler, wherein the boiler is communicated with a steam turbine through a pipeline, the steam turbine is communicated with a steam exhaust device, the steam exhaust device is communicated with a peak cooler through a steam pipe, a demineralized water system and a cold water system are further connected to the peak cooler, the peak cooler cools steam into condensate water and then is communicated with a condensate water tank through a hydrophobic pipe, the condensate water tank is communicated with the demineralized water system, the condensate water tank is communicated with a deaerator through a condensate pipe, the deaerator is connected with a high-pressure heater through a heating pipe, and the high-pressure heater is used for supplementing the heated feed water into the boiler; the heat required to be replaced by the peak cooling system can be recycled on the basis of fully meeting the heat exchange efficiency of the peak cooling system.
Description
Technical Field
The utility model relates to a peak heat exchange system, and belongs to the technical field of unit cooling.
Background
At present, the condensing steam turbine of the power plant in the water-deficient area mostly adopts direct air cooling, and part of units can be additionally provided with a peak cooling system to further strengthen the cooling effect, improve the vacuum and nearly improve the unit efficiency. But no matter direct air cooling or peak cooler cooling is carried out, the condensation steam-water mixture is subjected to heat exchange and temperature reduction, at present, most of the peak cooling systems in China use a circulating pump to pressurize circulating water as a medium for heat exchange, then the circulating water is subjected to heat dissipation through a water cooling tower, and finally the circulating water is returned to a circulating water tank for recycling. This part of the heat absorbed by the circulating water as a medium is directly discharged to the atmosphere. The heat exchange efficiency of the peak cooling system is simply considered, the recycling of heat is not considered, and the effects of energy conservation and emission reduction are not achieved.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a peak heat exchange system, which can recycle heat required to be replaced by the peak cooling system on the basis of fully meeting the heat exchange efficiency of the peak cooling system.
The technical scheme of the utility model is as follows:
the utility model provides a peak heat transfer system, includes the boiler, the boiler passes through the pipeline intercommunication to the steam turbine, the steam turbine communicates to exhaust device, exhaust device communicates to peak cooler through the steam pipe, still be connected with demineralized water system and cold water system on the peak cooler, the peak cooler is circulated to the condensate tank through the hydrophobic pipe after being the condensate water with steam cooling, condensate tank and demineralized water system intercommunication, the condensate tank communicates to the deaerator through the condensate pipe, the deaerator passes through the heating pipe and is connected in high-pressure heater, high-pressure heater is used for supplying water after with the heating into the boiler.
The system comprises a demineralized water pump, wherein the demineralized water pump is connected to a peak cooler through a demineralized water inlet pipe, the peak cooler is connected to a condensate tank through a demineralized water return pipe, and a bypass door is communicated between the demineralized water inlet pipe and the demineralized water return pipe.
The peak cooling system comprises a cooling tower, the peak cooler is communicated with the cooling tower through a circulating water return pipe, the cooling tower is communicated with the peak cooler through a circulating water incoming pipe, and a circulating water pump is arranged on the circulating water incoming pipe.
The steam inlet pipe is provided with a branch pipe which is communicated with the air cooling island, and the air cooling island is connected with the drain pipe through a pipeline.
Wherein, be provided with the pump that congeals on the condensate pipe.
Wherein, the high-pressure heater is provided with two.
The utility model has the following beneficial effects:
the system is used for replacing part of heat required to be replaced by the peak cooling system through the heat exchanger taking the desalted water as a cooling medium on the basis of meeting the heat exchange efficiency of the peak cooling system, so that the temperature of the desalted water of the unit can be increased, the vacuum of the unit can be increased, and then the desalted water is led to a steam-water system or other heat supply systems taking the desalted water as the medium to achieve the aim of improving the economic efficiency of the unit.
Drawings
FIG. 1 is a schematic diagram of a system according to the present utility model.
The reference numerals in the drawings are as follows:
1. a boiler; 2. a steam turbine; 3. a steam exhaust device; 4. a steam inlet pipe; 5. spike cooler; 6. a water drain pipe; 7. a condensation tank; 8. a condensate pipe; 9. a deaerator; 11. a high pressure heater; 12. a desalting water pump; 13. demineralized water supply pipe; 14. a desalted water return pipe; 15. a water cooling tower; 16. a circulating water return pipe; 17. a circulating water supply pipe; 18. a circulating water pump; 19. air cooling island; 20. and (5) a coagulation pump.
Detailed Description
The utility model will now be described in detail with reference to the drawings and to specific embodiments.
Referring to fig. 1, the utility model provides a technical scheme:
a peak heat exchange system comprises a boiler 1, wherein the boiler 1 heats unsaturated water into superheated steam with certain pressure and temperature through combustion by using fuel chemical energy, then the superheated steam is led to a steam turbine 2 through a pipeline, and the steam turbine 2 blows high-temperature and high-pressure superheated steam generated by the boiler 1 to rotate an impeller to convert heat energy into machinery; exhaust steam which does work in the steam turbine 2 is discharged into the steam exhaust device 3, the steam exhaust device 3 is communicated to the peak cooler 5 through the steam inlet pipe 4, and meanwhile, the branch pipe is further arranged on the steam inlet pipe 4 and communicated to the air cooling island 19, so that steam entering the steam exhaust device 3 is communicated to the air cooling island 19 and the peak cooler 5 for heat exchange and cooling, and a certain vacuum is maintained. Meanwhile, the peak cooler 5 is led to the cooling tower 15 through the circulating water return pipe 16, the cooling tower 15 is communicated to the peak cooler 5 through the circulating water inlet pipe 17, the circulating water inlet pipe 17 is provided with the circulating water pump 18, and the cooling water return of the peak cooler 5 and the auxiliary machine cooling water return are contacted with cold air to evaporate, dissipate heat and cool by the cooling tower 15; the cooled condensate water is led to the condensate tank 7 through the water drain pipe 6, the condensate water pump 12 is connected to the peak cooler 5 through the desalted water inlet pipe 13, the peak cooler 5 is connected to the condensate tank 7 through the desalted water return pipe 14, a bypass door is communicated between the desalted water inlet pipe 13 and the desalted water return pipe 14 and is mainly used when the peak is overhauled, the condensate water pump 12 is used for supplying the desalted water to supplement the condensate water, the condensate tank 7 is communicated to the deaerator 9 through the condensate pipe 8, the condensate pipe 8 is provided with the condensate pump 20, the deaerator 9 deaerates and heats the condensate water, and then the condensate water enters the two high-pressure heaters 11 for heating, and the heated feed water enters the boiler 1 and is heated by the economizer, the steam drum, the water cooling wall and various superheaters and reheaters to become high-pressure superheated steam.
Specifically, the steam exhaust device 3 is a condenser, and valves are arranged on the circulating water return pipe 16, the circulating water inlet pipe 17, the desalted water inlet pipe 13 and the desalted water return pipe 14.
The working principle of the peak heat exchange system is as follows:
the boiler 1 heats unsaturated water into superheated steam with certain pressure and temperature through combustion by using fuel chemical energy, then high-temperature and high-pressure superheated steam is led to the steam turbine 2 through a pipeline, and the high-temperature and high-pressure superheated steam generated by the boiler blows an impeller to rotate through the steam turbine 2, so that heat energy is converted into mechanical energy. Exhaust steam which is done work in the steam turbine 2 is discharged into the steam exhaust device 3, and steam which enters the steam exhaust device 3 is then led to the air cooling island 19 and the peak cooler 5 for heat exchange, cooling and temperature reduction, and certain vacuum is maintained. Finally, the cooled condensate water is recovered to the condensate water tank 7 for continuous cyclic utilization, and when the recovered condensate water is insufficient, the desalted water provided by the desalted water pump 12 is supplemented. The condensed water in the condensed water tank 7 is pumped to the deaerator 9 through the condensed pump 20 for deaeration heating, then the water supply in the deaerator 9 is conveyed to the high-pressure heater 11 through the water supply pump for heating, the heated water supply enters the boiler 1, and the heated water supply is heated through the economizer, the steam drum, the water cooling wall and various superheaters and reheaters to become high-temperature high-pressure superheated steam.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. A spike heat exchange system, characterized by: including boiler (1), boiler (1) are through pipeline intercommunication to steam turbine (2), steam turbine (2) are linked together to exhaust device (3), exhaust device (3) are linked together to peak cooler (5) through coming vapour pipe (4), still be connected with demineralized water system and cold water system on peak cooler (5), peak cooler (5) circulate to condensate tank (7) through hydrophobic pipe (6) after being cooled down into the condensate water, condensate tank (7) are linked together with demineralized water system, condensate tank (7) are linked together to deaerator (9) through condensate pipe (8), deaerator (9) are connected in high-pressure heater (11) through the heating pipe, high-pressure heater (11) are used for supplying water after with the heating into boiler (1).
2. A spike heat exchange system as claimed in claim 1 wherein: the demineralized water system comprises a demineralized water pump (12), the demineralized water pump (12) is connected to the peak cooler (5) through a demineralized water inlet pipe (13), the peak cooler (5) is connected to the condensate tank (7) through a demineralized water return pipe (14), and a bypass door is communicated between the demineralized water inlet pipe (13) and the demineralized water return pipe (14).
3. A spike heat exchange system as claimed in claim 2 wherein: the cold water system comprises a cold water tower (15), the peak cooler (5) is led to the cold water tower (15) through a circulating water return pipe (16), the cold water tower (15) is communicated to the peak cooler (5) through a circulating water inlet pipe (17), and a circulating water pump (18) is arranged on the circulating water inlet pipe (17).
4. A spike heat exchange system as claimed in claim 3 wherein: the steam inlet pipe (4) is provided with a branch pipe which is communicated with the air cooling island (19), and the air cooling island (19) is connected with the drain pipe (6) through a pipeline.
5. A spike heat exchange system as claimed in claim 4 wherein: and a condensation pump (20) is arranged on the condensation pipe (8).
6. A spike heat exchange system as claimed in claim 5 wherein: the high-pressure heater (11) is provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381729.9U CN220366405U (en) | 2023-06-01 | 2023-06-01 | Peak heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381729.9U CN220366405U (en) | 2023-06-01 | 2023-06-01 | Peak heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220366405U true CN220366405U (en) | 2024-01-19 |
Family
ID=89521077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321381729.9U Active CN220366405U (en) | 2023-06-01 | 2023-06-01 | Peak heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220366405U (en) |
-
2023
- 2023-06-01 CN CN202321381729.9U patent/CN220366405U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101696643B (en) | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof | |
| CN201560812U (en) | Cogeneration low temperature thermal energy recovery device | |
| CN204987536U (en) | High temperature heating device based on lithium bromide absorption heat pump unit | |
| CN207094731U (en) | A kind of cold end is exhaust heat stepped to utilize heating system | |
| CN101705849B (en) | Self-coupling cold source heat pump circulating device of low-temperature exhaust heat power generating system in low temperature exhaust steam condensation process | |
| CN208253694U (en) | A kind of waste heat recycling system reducing heat supply network return water temperature | |
| CN110593977A (en) | Dual-working-medium Rankine cycle waste heat power generation method and system and generator | |
| CN203594565U (en) | Steam-driven driving system for solar thermal power generation large power pump | |
| CN108613237A (en) | A kind of thermal power cogeneration central heating system based on temperature counterpart cascade utilization | |
| CN220366405U (en) | Peak heat exchange system | |
| CN102997311B (en) | Power plant condensing heat recovery heat supply system | |
| CN216077238U (en) | Energy-saving steam turbine power generation device | |
| CN201671665U (en) | Thermal power generation device utilizing heat pump for energy saving | |
| CN101788141A (en) | Absorption type heat regenerator and application thereof in regenerative circulation system of power plant | |
| CN111780195B (en) | Supercritical unit improved heat supply network drainage system and working method thereof | |
| CN213300061U (en) | Heat and power cogeneration cooling water heat step recovery system | |
| CN210948820U (en) | Dual-working-medium Rankine cycle waste heat power generation system and generator | |
| CN209960462U (en) | Device for heating boiler feed water by utilizing heat pump to absorb waste heat of steam turbine | |
| CN211038763U (en) | Heating device utilizing waste heat of power plant | |
| CN107477650A (en) | One kind utilizes compression heat pump recovery coal-burning power plant's condensation hot systems | |
| CN207018039U (en) | The energy conserving system of the turbine generating system thermal efficiency is improved using absorption heat pump | |
| CN207471648U (en) | It is a kind of to utilize compression heat pump recycling coal-burning power plant's condensation hot systems | |
| CN206310568U (en) | Feed pump turbine low-vacuum-operating circulating water heating system | |
| CN219063808U (en) | Industrial water waste heat utilization system for thermal power plant | |
| CN104564189B (en) | The Application way of residual heat of electric power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |