CN217504405U - Power station exhaust steam cooling system - Google Patents
Power station exhaust steam cooling system Download PDFInfo
- Publication number
- CN217504405U CN217504405U CN202221322764.9U CN202221322764U CN217504405U CN 217504405 U CN217504405 U CN 217504405U CN 202221322764 U CN202221322764 U CN 202221322764U CN 217504405 U CN217504405 U CN 217504405U
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- cooling
- steam
- water
- medium channel
- condenser
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- 238000001816 cooling Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000012080 ambient air Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 239000003570 air Substances 0.000 abstract description 12
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 1
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Abstract
The utility model provides a power station exhaust steam cooling system, which comprises a heating device, a steam turbine, a generator, a condenser, a cooling tower, a fan, a first water pump and a second water pump; the condenser is a three-medium heat exchanger with a first medium channel and a second medium channel, the first medium channel is connected with exhaust steam of the steam turbine, the second medium channel is connected with the cooling water loop, and the exhaust steam in the first medium channel can realize independent or simultaneous heat exchange with the cooling water and the ambient air in the second medium channel. The utility model discloses can be realizing pure water-cooling, water-cooling and air cooling jointly, three kinds of modes of pure air cooling discharge exhaust steam heat of condensation to can show reduction air cooler area and water consumption, reduce the cold season of freezing risk.
Description
Technical Field
The utility model belongs to the power generation field, in particular to power station exhaust steam cooling system.
Background
At present, thermal power generation, nuclear power generation and solar thermal power generation generally heat water into steam, a steam turbine drives a generator to generate power, exhaust steam from the steam turbine enters a cooling device to be condensed, and then is pressurized by a water pump and then is sent to a heating device.
The dead steam cooling mode is generally divided into an air cooling mode and a water cooling mode. The air cooling mode does not need to consume water resources, but the area of a heat exchanger which is usually needed is large, the investment cost is high, and the cooling effect in hot summer is poor.
The cooling effect is all better all the year round when adopting the water-cooling mode, but even in severe cold season, need operate the cooling tower, can consume a large amount of water resources, still have the risk of freezing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is big that present air cooling mode heat exchanger area, hot summer cooling effect are poor, and the water cooling mode still need open the water resource consumption that the cooling tower brought and freeze the risk in cold season.
In order to solve the technical problem, the utility model provides a power station exhaust steam cooling system, which comprises a heating device, a steam turbine, a generator, a condenser, a cooling tower, a fan, a first water pump and a second water pump; the heating device, the steam turbine, the condenser and the first water pump are sequentially connected to form a steam circulation loop; the condenser, the cooling tower and the second water pump are sequentially connected to form a cooling water loop; the condenser is a three-medium heat exchanger with a first medium channel and a second medium channel, the first medium channel is connected with the steam circulation loop, the second medium channel is connected with the cooling water loop, and steam in the first medium channel can exchange heat with cooling water in the second medium channel and can also exchange heat with ambient air under the action of a fan.
Optionally, the heating device is one or more of a boiler, a nuclear reactor, a fuel combustion device, a chemical reaction device and a solar heat collector.
Preferably, the fan is a speed-adjustable fan.
Preferably, the first water pump and the second water pump are variable frequency water pumps.
Optionally, the circulating medium of the steam circulating loop is water steam or other working medium steam.
Has the advantages that:
the utility model relates to a power station exhaust steam cooling system adopts three medium heat exchangers to replace conventional condenser, realizes that air cooling and water-cooling mode are alone or jointly multiple mode accomplishes the cooling of exhaust steam, and cooling efficiency is high, compares the air-cooled system and can reduce air cooler heat exchanger area to solved the poor problem of hot summer cooling effect, compared the water-cooled system then can water economy resource consumption, and avoided cooling device in winter to freeze the risk.
Drawings
Fig. 1 is a schematic view of the exhaust steam cooling system of the power station of the present invention.
Reference numerals: 1. A heating device; 2. a steam turbine; 3. a generator; 6. a condenser; 7. a first water pump; 10. a steam circulation loop; 60. A cooling water circuit; 61. A first medium channel of the three-medium heat exchanger; 62. A second medium channel of the three-medium heat exchanger; 63. A cooling tower; 65. a second water pump; 66. a fan.
The specific implementation mode is as follows:
the embodiment of the utility model relates to a power station exhaust steam cooling system, which is shown in figure 1 and comprises a heating device (1), a steam turbine (2), a generator (3), a condenser (6), a cooling tower (63), a fan (66), a first water pump (7) and a second water pump (65); heating device (1), steam turbine (2), condenser (6), first water pump (7) are connected in proper order and are constituted steam circulation return circuit (10), condenser (6), cooling tower (63), second water pump (65) are connected in proper order and are constituted cooling water return circuit (60), condenser (6) are the three medium heat exchanger that has first medium passageway (61) and second medium passageway (62), first medium passageway (61) link to each other with steam circulation return circuit (10), second medium passageway (62) link to each other with cooling water return circuit (60), steam in first medium passageway (61) can carry out the heat transfer with the cooling water in second medium passageway (62), also can carry out the heat transfer with ambient air under fan (66) effect.
When the temperature of the outside air is high, the cooling water generated by the cooling device (63) is driven by the second water pump (65) to pass through the second medium channel (62) of the condenser (6) and cool the exhaust steam passing through the first medium channel (61) of the condenser (6) together with the ambient air driven by the fan (66). At this time, the water quantity of the second water pump (65) or the air quantity of the fan (66) can be adjusted according to the requirement.
When the outside air temperature is particularly low, only the ambient air driven by the fan (66) cools the dead steam passing through the first medium channel (61) of the condenser (6). At the moment, the second water pump (65) and the cooling tower (63) stop running, and the fan (66) adjusts the air volume as required.
Claims (5)
1. A power station exhaust steam cooling system comprises a heating device, a steam turbine, a generator, a condenser, a cooling tower, a fan, a first water pump and a second water pump; the heating device, the steam turbine, the condenser and the first water pump are sequentially connected to form a steam circulation loop; the condenser, the cooling tower and the second water pump are sequentially connected to form a cooling water loop; the steam condenser is characterized in that the condenser is a three-medium heat exchanger with a first medium channel and a second medium channel, the first medium channel is connected with a steam circulation loop, the second medium channel is connected with a cooling water loop, and steam in the first medium channel can exchange heat with cooling water in the second medium channel or exchange heat with ambient air under the action of a fan.
2. The spent steam cooling system of a power plant of claim 1, wherein the heating device is one or more of a boiler, a nuclear reactor, a fuel burning device, a chemical reaction device, and a solar collector.
3. The plant exhaust steam cooling system of claim 1, wherein the fan is a variable speed fan.
4. The power plant exhaust steam cooling system of claim 1, wherein the first and second water pumps are variable frequency water pumps.
5. The spent steam cooling system of a power plant of claim 1, wherein the circulating medium of the steam circulation loop is steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322764.9U CN217504405U (en) | 2022-05-30 | 2022-05-30 | Power station exhaust steam cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322764.9U CN217504405U (en) | 2022-05-30 | 2022-05-30 | Power station exhaust steam cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217504405U true CN217504405U (en) | 2022-09-27 |
Family
ID=83358147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221322764.9U Expired - Fee Related CN217504405U (en) | 2022-05-30 | 2022-05-30 | Power station exhaust steam cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217504405U (en) |
-
2022
- 2022-05-30 CN CN202221322764.9U patent/CN217504405U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220927 |