CN203116553U - Cooling water return system - Google Patents
Cooling water return system Download PDFInfo
- Publication number
- CN203116553U CN203116553U CN 201320028291 CN201320028291U CN203116553U CN 203116553 U CN203116553 U CN 203116553U CN 201320028291 CN201320028291 CN 201320028291 CN 201320028291 U CN201320028291 U CN 201320028291U CN 203116553 U CN203116553 U CN 203116553U
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- China
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- water
- cooling water
- pipe
- cooling
- deaerator
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- Expired - Fee Related
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Abstract
The utility model discloses a cooling water returning system. A control cooling pipe and a water pump sealing cooling water pipe are respectively connected with a water recovery main pipe, the water recovery main pipe is connected with a drain tank, and the drain tank is sequentially connected with a drain pump, a condenser, a low-pressure heater and a deaerator through pipelines. The cooling water returning system has the advantages that the temperature is increased through the low-pressure heater, the deaerator is added when the temperature reaches 120 degrees or so after heating, water supplement temperature difference of the deaerator and electricity generation costs are reduced, and the cooling water return system plays a very good role in safe and economic operations of the deaerator, and therefore operation costs are reduced.
Description
Technical field
The utility model belongs to the cooling system technical field, relates to a kind of cooling backwater system.
Background technology
Existing genco return water system structure is, condensed water enters automatic main inlet throttle-stop valve, throttle respectively, automatically the water outlet of main inlet throttle-stop valve, throttle is reclaimed female pipe through supercooled water and is entered into the jetting pond, circulating cooling make-up water is passed through in the jetting pond, the recirculated water backwater is inserted by overflow pipe, adjutage respectively again in the jetting pond, and the recirculated water backwater is to cooling tower.Wherein, throttle, automatic main inlet throttle-stop valve cooling water all are condensate water, and the cooling water return water temperature all is recovered to the jetting pond about 50 ℃.Summer circulating water temperature about 40 ℃, cooling water backwater effect jetting pond water temperature, unfavorable to the work of water jet air ejector, air ejector work water temperature so decrease for the unit vacuum, has influenced generated energy and exhaust casing temperature about 25 ℃.Jetting pond daily water consumption is recirculated water and long-term overflow, and overflow water is recovered to cooling tower, and long-term overflow and waste demineralized water increase cost of electricity-generating.
Summary of the invention
The purpose of this utility model provides a kind of cooling backwater system, has reduced cost of electricity-generating.
The technical scheme that the utility model adopts is, a kind of cooling backwater system, control cooling water pipe, water pump packing cooling water pipe are connected with recovery jellyfish pipe respectively, reclaim the jellyfish pipe and are connected with drain tank, and drain tank connects drainage pump, condenser, low-pressure heater, oxygen-eliminating device by pipeline successively.
Feature of the present utility model is that also low-pressure heater arranges 3.
The beneficial effects of the utility model are, improve temperature by low-pressure heater, reach about 120 ℃ by temperature after heating covering oxygen-eliminating device, have reduced the oxygen-eliminating device moisturizing temperature difference, have reduced cost of electricity-generating, and the safety and economic operation of oxygen-eliminating device is had good effect.Thereby reduced operating cost.
Description of drawings
Fig. 1 is the structural representation of the utility model cooling backwater system.
Among the figure, 1. control cooling water pipe, 2. the water pump packing cooling water pipe 3. reclaims the jellyfish pipe, 4. drain tank, 5. drainage pump, 6. condenser, 7. low-pressure heater, 8. oxygen-eliminating device.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Cooling backwater of the present utility model system, structure as shown in Figure 1, control cooling water pipe 1, water pump packing cooling water pipe 2 are connected with recovery jellyfish pipe 3 respectively, reclaim jellyfish pipe 3 and be connected with drain tank 4, drain tank 4 is successively by pipeline connection drainage pump 5, condenser 6, low-pressure heater 7, oxygen-eliminating device 8.
Cooling backwater of the present utility model system is with the speed governing valve, the main inlet throttle-stop valve cooling water all is recovered to drain tank 4 automatically, mending condenser 6 by drainage pump 5, improve temperature by 3 low-pressure heaters 7, reach about 120 ℃ by temperature after heating and to cover oxygen-eliminating device 8, reduced the oxygen-eliminating device moisturizing temperature difference.Reduced cost of electricity-generating, the safety and economic operation of oxygen-eliminating device has been had good effect.Thereby reduced operating cost.
Normal by transforming back system operation, to the transformation before and the contrast demineralized water consumption of transforming back demineralized water consumption per hour reduce 5 tons, surplus the annual saving cost of electricity-generating 40 ten thousand yuan.After jetting pond water temperature reduced, water jet air ejector had improved operating efficiency, and the unit vacuum improves, and has per hour increased generated energy 0.2MW, the annual generated energy 1728MW that increases.
Claims (2)
1. cooling backwater system, it is characterized in that, control cooling water pipe (1), water pump packing cooling water pipe (2) are connected with recovery jellyfish pipe (3) respectively, reclaim jellyfish pipe (3) and be connected with drain tank (4), described drain tank (4) connects drainage pump (5), condenser (6), low-pressure heater (7), oxygen-eliminating device (8) by pipeline successively.
2. cooling backwater according to claim 1 system is characterized in that described low-pressure heater (7) arranges 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028291 CN203116553U (en) | 2013-01-18 | 2013-01-18 | Cooling water return system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028291 CN203116553U (en) | 2013-01-18 | 2013-01-18 | Cooling water return system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116553U true CN203116553U (en) | 2013-08-07 |
Family
ID=48896889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028291 Expired - Fee Related CN203116553U (en) | 2013-01-18 | 2013-01-18 | Cooling water return system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203116553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108133A (en) * | 2018-12-24 | 2019-08-09 | 程琛 | A kind of connection of the steam-sprayed pumped vacuum systems cooling water heat exchanger of condenser and heat recovery method |
| CN113685550A (en) * | 2021-07-22 | 2021-11-23 | 华能国际电力股份有限公司上安电厂 | Low-pressure water return system of water feed pump |
-
2013
- 2013-01-18 CN CN 201320028291 patent/CN203116553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108133A (en) * | 2018-12-24 | 2019-08-09 | 程琛 | A kind of connection of the steam-sprayed pumped vacuum systems cooling water heat exchanger of condenser and heat recovery method |
| CN113685550A (en) * | 2021-07-22 | 2021-11-23 | 华能国际电力股份有限公司上安电厂 | Low-pressure water return system of water feed pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140118 |