CN210343570U - Cooling device for hydropower station - Google Patents
Cooling device for hydropower station Download PDFInfo
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- CN210343570U CN210343570U CN201921278002.1U CN201921278002U CN210343570U CN 210343570 U CN210343570 U CN 210343570U CN 201921278002 U CN201921278002 U CN 201921278002U CN 210343570 U CN210343570 U CN 210343570U
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- circulating water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model provides a cooling device for power station, including circulating water tank, circulating water tank's delivery port links to each other with main line one end, be provided with generator air cooler on the main line, parallelly connected being provided with first branch pipe on the main line, be provided with oil cooler group on the first branch pipe, oil cooler group rear end is provided with the second branch pipe, the second branch pipe other end links to each other with generator air cooler's front end, the main line other end links to each other with external cooler entry, be equipped with the bar cooling tube in the external cooler, be provided with the ventiduct between the bar cooling tube, bar cooling tube one end is connected with the main line, the other end passes through circulating water pipe and links to each other with circulating water tank's water inlet, the circulating water tank bottom is. The utility model discloses have and can be through the cooperation between a plurality of valves, realize the regulation of the connected mode between generator air cooler and each bearing cooler, the main transformer cooler, can effectively reduce the water supply.
Description
Technical Field
The utility model relates to a generator and transformer cooling device technical field in the power station especially relate to a cooling device for power station.
Background
Water supply in the hydropower station is mainly for generator and transformer cooling, and the reliability of cooling water supply and the quality of water have very big influence to power station normal operating, generally adopt before the dam or spiral case water intaking or low reaches water intaking, and such water supply easily receives the influence of silt and floater, and the water supply quality is difficult to guarantee, and current cooler radiating efficiency is not high simultaneously, can not guarantee to fall hot water to predetermined temperature. The hydropower station cooling device mainly provides cooling water for the generator air cooler, each bearing cooler and the main transformer cooler, wherein the water consumption of the generator air cooler is the largest and is generally larger than the sum of the water consumption of the rest coolers.
At present, each cooler of each hydropower station technical water supply system is generally connected in parallel, and the total water supply flow is equal to the sum of the flows of the coolers. For large, huge power generation units, this results in a huge amount of cooling water and also means a high water cost. On the other hand, the water source of the technical water supply system is generally taken from river water, and in the connection mode, the temperature rise of cooling water passing through each cooler is not high and is usually far less than the temperature difference of water flow at the inlet of each cooler in summer and winter, so the cooling efficiency of the connection mode is not high.
Disclosure of Invention
An object of the utility model is to overcome the aforesaid not enough, provide a cooling device for power station to solve the problem that proposes in the above-mentioned background art.
The utility model aims at realizing through the following technical scheme:
a cooling device for a hydropower station, comprising a circulation tank, characterized in that: the water outlet of the circulating water tank is connected with one end of a main pipeline, a generator air cooler is arranged on the main pipeline, a first branch pipe is arranged on the main pipeline in parallel, an oil cooler group is arranged on the first branch pipe, the rear end of the oil cooler group is provided with a second branch pipe, the other end of the second branch pipe is connected with the front end of the generator air cooler, the other end of the main pipeline is connected with an inlet of an external cooler, a bar-shaped cooling pipe is arranged in the external cooler, an air duct is arranged between the bar-shaped cooling pipes, one end of the bar-shaped cooling pipe is connected with the main pipeline, the other end of the bar-shaped cooling pipe is connected with a water inlet of.
Preferably, the oil cooler group comprises an upper guide bearing cooler, a thrust bearing cooler, a water turbine guide bearing cooler and a main transformer cooler, wherein the upper guide bearing cooler, the thrust bearing cooler, the water turbine guide bearing cooler and the main transformer cooler are connected in parallel on the first branch pipeline.
Preferably, a first valve is arranged at the front end of the generator air cooler, and a second valve is arranged at the rear end of the generator air cooler.
Preferably, the front end of the oil cooler group is provided with a third valve, and the rear end of the oil cooler group is provided with a fourth valve.
Preferably, fifth valves are arranged at two ends of the upper guide bearing cooler, the thrust bearing cooler, the water turbine guide bearing cooler and the main transformer cooler.
Preferably, a sixth valve is arranged on the second branch pipe.
Preferably, a temperature sensor is arranged on the circulating water pipe.
Preferably, the high-pressure water pump is a variable-frequency high-pressure water pump.
Preferably, the circulating water tank is also provided with a water adding pipe.
Preferably, the main pipeline is provided with a filter close to the circulating water tank.
The beneficial effects of this technical scheme are as follows:
the utility model provides a cooling device for hydropower station, circulating water tank, the delivery port of circulating water tank is connected with one end of the main pipeline, the main pipeline is provided with a generator air cooler, the main pipeline is provided with a first branch pipe in parallel, the first branch pipe is provided with an oil cooler group, the rear end of the oil cooler group is provided with a second branch pipe, the other end of the second branch pipe is connected with the front end of the generator air cooler, the other end of the main pipeline is connected with the inlet of an external cooler, the external cooler is internally provided with a strip-shaped cooling pipe, a ventilation channel is arranged between the strip-shaped cooling pipes, one end of the strip-shaped cooling pipe is connected with the main pipeline, the other end is connected with the water inlet of the circulating water tank through the circulating water pipe, the bottom of the circulating water tank is provided with a high pressure water pump, when in operation, cold water flows into, the hot water after circulation flows into the external cooler to be cooled and then flows back to the circulating water tank, and the strip-shaped cooling pipe can increase the contact area of the hot water and air, so that the hot water can be quickly cooled.
Secondly, according to the cooling device for the hydropower station, a first valve is arranged at the front end of an air cooler of a generator, a second valve is arranged at the rear end of the air cooler of the generator, a third valve is arranged at the front end of an oil cooler group, a fourth valve is arranged at the rear end of the oil cooler group, fifth valves are arranged at two ends of a cooler of an upper guide bearing, a cooler of a thrust bearing, a cooler of a water turbine and a cooler of a main transformer, and a sixth valve is arranged on a second branch pipe; can carry out the regulation of series-parallel mode between generator air cooler and the oil cooler group according to the temperature at water supply source, when water supply source temperature was fit for, adopt the series connection, can reduce the total supply water of system, when water supply source temperature is higher, adopt parallelly connected, can promote the cooling effect.
Three, the utility model provides a pair of a cooling device for power station is provided with temperature sensor on the circulating pipe, and high pressure water pump adopts frequency conversion high pressure water pump, can realize the circulation volume of water and adjust through the frequency of adjusting frequency conversion high pressure water pump according to circulating pipe department temperature, satisfies the demand of generator and voltage ware cooling.
Four, the utility model provides a pair of a cooling device for power station still is provided with the filler pipe on the circulating water tank, and the convenient outside of setting up of filler pipe carries out moisturizing work to circulating water tank, and the main line is close to circulating water tank department and is provided with the filter, reduces the impurity entering generator air cooler and the oil cooler group of aquatic, prevents that generator air cooler and oil cooler group work is unusual.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
wherein: 1. a circulating water tank; 2. a main pipeline; 3. a generator air cooler; 4. a first branch pipe; 5. an oil cooler group; 6. a second branch pipe; 7. an external cooler; 8. a strip-shaped cooling pipe; 9. a circulating water pipe; 10. a high pressure water pump; 11. an upper guide bearing cooler; 12. a thrust bearing cooler; 13. a turbine guide bearing cooler; 14. a main transformer cooler; 15. a first valve; 16. a second valve; 17. a third valve; 18. a fourth valve; 19. a fifth valve; 20. a sixth valve; 21. a temperature sensor; 22. a water feeding pipe; 23. and (3) a filter.
Detailed Description
The technical solution for achieving the objectives of the present invention will be further described by using several specific examples, and it should be noted that the technical solution claimed in the present invention includes, but is not limited to, the following examples.
Example 1
As the most basic embodiment of the utility model, the embodiment discloses a cooling device for hydropower station, as shown in figure 1, comprising a circulating water tank 1, wherein the water outlet of the circulating water tank 1 is connected with one end of a main pipeline 2, the main pipeline 2 is provided with a generator air cooler 3, the main pipeline 2 is provided with a first branch pipe 4 in parallel, the first branch pipe 4 is provided with an oil cooler group 5, the rear end of the oil cooler group 5 is provided with a second branch pipe 6, the other end of the second branch pipe 6 is connected with the front end of the generator air cooler 3, the other end of the main pipeline 2 is connected with the inlet of an external cooler 7, the external cooler 7 is internally provided with a strip-shaped cooling pipe 8, an air duct is arranged between the strip-shaped cooling pipes 8, one end of the strip-shaped cooling pipe 8 is connected with the main pipeline 2, the other end is connected with the water inlet of the circulating, the bottom of the circulating water tank 1 is provided with a high-pressure water pump 10.
The utility model provides a cooling device for hydropower station, circulating water tank 1, the delivery port of circulating water tank 1 is connected with one end of main pipeline 2, be provided with generator air cooler 3 on main pipeline 2, parallelly connected first branch pipe 4 on main pipeline 2, be provided with oil cooler group 5 on first branch pipe 4, oil cooler group 5 rear end is provided with second branch pipe 6, the other end of second branch pipe 6 is connected with the front end of generator air cooler 3, the other end of main pipeline 2 is connected with external cooler 7 entry, be equipped with bar cooling tube 8 in external cooler 7, be provided with the ventiduct between bar cooling tube 8, bar cooling tube 8 one end is connected with main pipeline 2, the other end passes through circulating pipe 9 and links to each other with circulating water tank 1's water inlet, circulating water tank 1 bottom is provided with high pressure water pump 10, during operation, cold water flows into generator air cooler 3 and oil cooler group 5 from main pipeline 2, the generator and the transformer are cooled, the circulated hot water flows into the external cooler 7 to be cooled and then flows back to the circulating water tank 1, and the strip-shaped cooling pipe 8 can enlarge the contact area of the hot water and air, so that the hot water can be rapidly cooled.
Example 2
As a preferred embodiment of the present invention, this embodiment discloses a cooling device for hydropower station, as shown in FIG. 1, comprising a circulation water tank 1, wherein a water outlet of the circulation water tank 1 is connected to one end of a main pipeline 2, the main pipeline 2 is provided with a generator air cooler 3, the main pipeline 2 is provided with a first branch pipe 4 in parallel, the first branch pipe 4 is provided with an oil cooler group 5, the rear end of the oil cooler group 5 is provided with a second branch pipe 6, the other end of the second branch pipe 6 is connected to the front end of the generator air cooler 3, the other end of the main pipeline 2 is connected to an inlet of an external cooler 7, the external cooler 7 is provided with a bar-shaped cooling pipe 8, an air duct is arranged between the bar-shaped cooling pipes 8, one end of the bar-shaped cooling pipe 8 is connected to the main pipeline 2, and the other end is connected to a water inlet of the, the bottom of the circulating water tank 1 is provided with a high-pressure water pump 10.
Preferably, the oil cooler group 5 comprises an upper guide bearing cooler 11, a thrust bearing cooler 12, a turbine guide bearing cooler 13 and a main transformer cooler 14, wherein the upper guide bearing cooler 11, the thrust bearing cooler 12, the turbine guide bearing cooler 13 and the main transformer cooler 14 are connected in parallel on the first branch pipe 4.
Preferably, a first valve 15 is arranged at the front end of the generator air cooler 3, and a second valve 16 is arranged at the rear end of the generator air cooler 3.
Preferably, a third valve 17 is provided at the front end of the oil cooler group 5, and a fourth valve 18 is provided at the rear end of the oil cooler group 5.
Preferably, a fifth valve 19 is arranged at two ends of the upper guide bearing cooler 11, the thrust bearing cooler 12, the turbine guide bearing cooler 13 and the main transformer cooler 14.
Preferably, a sixth valve 20 is arranged on the second branch pipe 6.
Preferably, a temperature sensor 21 is disposed on the circulating water pipe 9.
Preferably, the high-pressure water pump 10 is a variable-frequency high-pressure water pump.
Preferably, the circulating water tank 1 is further provided with a water adding pipe 22.
Preferably, the main pipe 2 is provided with a filter 23 near the circulation tank 1.
The working principle of the device is as follows:
when water is supplied to the device, the first valve 15 and the fourth valve 18 are closed when the serial connection mode is adopted, and at the moment, water flows through the first branch pipeline 4, the oil cooler group 5, the second branch pipeline 6 and the generator air cooler 3 in sequence and finally flows into the external cooler from the main pipeline. When it is desired to connect the generator air cooler 3 in parallel with the oil cooler package 5, it is only necessary to close the sixth valve 20 while keeping the other valves open.
The utility model provides a cooling device for hydropower station, circulating water tank 1, the delivery port of circulating water tank 1 is connected with one end of main pipeline 2, be provided with generator air cooler 3 on main pipeline 2, parallelly connected first branch pipe 4 on main pipeline 2, be provided with oil cooler group 5 on first branch pipe 4, oil cooler group 5 rear end is provided with second branch pipe 6, the other end of second branch pipe 6 is connected with the front end of generator air cooler 3, the other end of main pipeline 2 is connected with external cooler 7 entry, be equipped with bar cooling tube 8 in external cooler 7, be provided with the ventiduct between bar cooling tube 8, bar cooling tube 8 one end is connected with main pipeline 2, the other end passes through circulating pipe 9 and links to each other with circulating water tank 1's water inlet, circulating water tank 1 bottom is provided with high pressure water pump 10, during operation, cold water flows into generator air cooler 3 and oil cooler group 5 from main pipeline 2, the generator and the transformer are cooled, the circulated hot water flows into the external cooler 7 to be cooled and then flows back to the circulating water tank 1, and the strip-shaped cooling pipe 8 can enlarge the contact area of the hot water and air, so that the hot water can be rapidly cooled.
A first valve 15 is arranged at the front end of the generator air cooler 3, a second valve 16 is arranged at the rear end of the generator air cooler 3, a third valve 17 is arranged at the front end of the oil cooler group 5, a fourth valve 18 is arranged at the rear end of the oil cooler group 5, fifth valves 19 are arranged at two ends of the upper guide bearing cooler 11, the thrust bearing cooler 12, the water turbine guide bearing cooler 13 and the main transformer cooler 14, and sixth valves 20 are arranged on the second branch pipes 6; can carry out the regulation of series-parallel mode between generator air cooler 3 and the oil cooler group 5 according to the temperature of water supply source, when water supply source temperature was fit for, adopt the series connection, can reduce the total water supply of system, when water supply source temperature is higher, adopt parallelly connected, can promote the cooling effect. The circulating water pipe 9 is provided with a temperature sensor 21, the high-pressure water pump 10 adopts a variable-frequency high-pressure water pump 10, the circulation volume of water can be adjusted by adjusting the frequency of the variable-frequency high-pressure water pump 10 according to the water temperature at the circulating water pipe 9, and the requirement of cooling a generator and a voltage device is met. Still be provided with filler pipe 22 on circulating water tank 1, filler pipe 22 set up convenient outside and carry out moisturizing work to circulating water tank 1, and main line 2 is close to circulating water tank 1 department and is provided with filter 23, reduces the impurity entering generator air cooler 3 and the oil cooler group 5 of aquatic, prevents that generator air cooler 3 and the work of oil cooler group 5 are unusual.
Claims (10)
1. A cooling device for a hydropower station, comprising a circulation tank (1), characterized in that: a water outlet of the circulating water tank (1) is connected with one end of a main pipeline (2), a generator air cooler (3) is arranged on the main pipeline (2), a first branch pipe (4) is connected in parallel on the main pipeline (2), an oil cooler group (5) is arranged on the first branch pipe (4), a second branch pipe (6) is arranged at the rear end of the oil cooler group (5), the other end of the second branch pipe (6) is connected with the front end of the generator air cooler (3), the other end of the main pipeline (2) is connected with the inlet of an external cooler (7), a strip-shaped cooling pipe (8) is arranged in the external cooler (7), a ventilation channel is arranged between the strip-shaped cooling pipes (8), one end of the strip-shaped cooling pipe (8) is connected with the main pipeline (2), the other end of the strip-shaped cooling pipe is connected with a water inlet of the circulating water tank (1) through a circulating water pipe (9), and a high-pressure water pump (10) is arranged at the bottom of the circulating water tank (1).
2. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: the oil cooler group (5) comprises an upper guide bearing cooler (11), a thrust bearing cooler (12), a water turbine guide bearing cooler (13) and a main transformer cooler (14), wherein the upper guide bearing cooler (11), the thrust bearing cooler (12), the water turbine guide bearing cooler (13) and the main transformer cooler (14) are connected on the first branch pipe (4) in parallel.
3. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: the front end of the generator air cooler (3) is provided with a first valve (15), and the rear end of the generator air cooler (3) is provided with a second valve (16).
4. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: the front end of the oil cooler group (5) is provided with a third valve (17), and the rear end of the oil cooler group (5) is provided with a fourth valve (18).
5. A cooling arrangement for a hydroelectric power plant as claimed in claim 2, wherein: and fifth valves (19) are arranged at two ends of the upper guide bearing cooler (11), the thrust bearing cooler (12), the water turbine guide bearing cooler (13) and the main transformer cooler (14).
6. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: and a sixth valve (20) is arranged on the second branch pipe (6).
7. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: and a temperature sensor (21) is arranged on the circulating water pipe (9).
8. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: the high-pressure water pump (10) adopts a variable-frequency high-pressure water pump.
9. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: and a water adding pipe (22) is also arranged on the circulating water tank (1).
10. A cooling arrangement for a hydroelectric power plant as claimed in claim 1, wherein: the main pipeline (2) is provided with a filter (23) close to the circulating water tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278002.1U CN210343570U (en) | 2019-08-08 | 2019-08-08 | Cooling device for hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278002.1U CN210343570U (en) | 2019-08-08 | 2019-08-08 | Cooling device for hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343570U true CN210343570U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921278002.1U Active CN210343570U (en) | 2019-08-08 | 2019-08-08 | Cooling device for hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343570U (en) |
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2019
- 2019-08-08 CN CN201921278002.1U patent/CN210343570U/en active Active
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