CN214286383U - Converter station valve cold spray water double-water-replenishing water storage system - Google Patents
Converter station valve cold spray water double-water-replenishing water storage system Download PDFInfo
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- CN214286383U CN214286383U CN202022846765.0U CN202022846765U CN214286383U CN 214286383 U CN214286383 U CN 214286383U CN 202022846765 U CN202022846765 U CN 202022846765U CN 214286383 U CN214286383 U CN 214286383U
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Abstract
The utility model relates to the research field of a valve cooling system of a direct-current transmission converter station, in particular to a cold spray water double-water-replenishing water storage system of a converter station valve, which comprises a main circulating water system, a spray water double-water-replenishing water storage system and a closed cooling tower (6); the closed cooling tower (6) comprises a snakelike heat exchange coil (7) arranged in the closed cooling tower, and the snakelike heat exchange coil (7) is arranged between an inlet valve of the closed cooling tower (6) and an outlet valve of the closed cooling tower (6); the main circulating water system is arranged at two ends of the snakelike heat exchange coil (7); the spray water double-water-replenishing water storage system is also arranged at two ends of the snakelike heat exchange coil (7); and so on. The utility model has the advantages that: through the improvement to the cold system of current convertor station valve that has now disclosed, adopt a cold spray water two moisturizing water storage system of convertor station valve, both using water wisely, optimize the spray water moisturizing system structure again and improve the moisturizing system reliability.
Description
Technical Field
The utility model relates to a direct current transmission current conversion station valve cooling system research field, specific saying so relates to a cold shower water two moisturizing water storage system of current conversion station valve.
Background
At present, the converter valve cooling system of the converter station of the direct current transmission project in China comprises two types: and inner cooling and outer cooling, wherein the inner cooling adopts a closed pure water circulating water cooling system, and the outer cooling adopts cooling modes such as water cooling, air cooling or air cooling series water cooling and the like according to the outdoor environment temperature. When the outdoor environment temperature is higher than the temperature of the internally-cooled closed circulating water entering the converter valve, the externally-cooled closed circulating water is generally water-cooled.
The external cooling system of the existing closed circulating pure water cooling equipment of the direct-current transmission converter valve generally has two forms, namely a closed cooling tower and an air radiator, wherein the air cooler adopts a heat exchange form of a cooling medium and air, and the closed cooling tower adopts a heat exchange form of the cooling medium and water. The closed cooling tower utilizes water as a heat exchange medium, has high heat exchange rate and needs to be close to a water source. For high-temperature water-deficient areas, it is difficult to use a cooling tower as secondary heat exchange. The outer cold water moisturizing of closed cooling tower generally adopts single water supply pipe to constitute, and through outer cold water pool moisturizing, the moisturizing return circuit is comparatively simple, if single water supply pipe trouble or outer cold water pool moisturizing trouble then can't be to the outer cold water moisturizing of closed cooling tower.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a cold spray water double-water-replenishing water storage system for a converter station valve, wherein the spray water collection tank water of a closed cooling tower of the system is directly replenished with water by an external pressure pump room water supply pipeline, and the water storage tank is used for storing and replenishing water under the condition of water replenishing faults of the external pressure pump room water supply pipeline; in addition, when the water supply of the external pressurizing pump room water supply pipeline and the water storage tank is in fault, the standby pressurizing pump room water supply pipeline supplies water; if the external pressurizing pump room water supply pipeline and the standby pressurizing pump room water supply pipeline both break down, the water storage tank stores water and replenishes water, and the possibility of rush repair of the pressurizing pump room water supply pipeline is gained. Not only saves water, but also optimizes the structure of the spray water replenishing system to improve the reliability of the replenishing system.
In order to achieve the above object, the technical solution of the present invention is realized by the following means:
the utility model provides a cold spray water double-moisturizing water storage system of convertor station valve, which comprises a main circulating water system, a spray water double-moisturizing water storage system and a closed cooling tower 6;
the closed cooling tower 6 comprises a snakelike heat exchange coil 7 arranged in the closed cooling tower, and the snakelike heat exchange coil 7 is arranged between an inlet valve of the closed cooling tower 6 and an outlet valve of the closed cooling tower 6;
the main circulating water system is arranged at two ends of the snakelike heat exchange coil 7; the spray water double-water-replenishing water storage system is also arranged at two ends of the serpentine heat exchange coil 7;
the main circulating water system comprises a rectifying device 1, a buffer water tank 2, a gas-water separator 3, a circulating pump 4 and a serpentine heat exchange coil 7;
a heat-carrying pure water (main circulating water) outlet pipeline at the output end of the rectifying device 1 is connected with an inlet valve elbow of the buffer water tank 2, an outlet valve elbow of the buffer water tank 2 is connected with the gas-water separator 3, and the gas-water separator 3 is connected with an inlet valve elbow of the circulating pump 4 after air is separated;
an automatic reversing valve elbow of the circulating pump 4 is connected to an inlet valve of the closed cooling tower 6 to a pipeline of the snakelike heat exchange coil 7; and an outlet valve of the closed cooling tower 6 is connected with a pipeline to an inlet valve elbow of the rectifying device 1 to form a closed circulation loop.
Namely: an automatic reversing valve elbow of the circulating pump 4 is connected to an inlet valve of the closed cooling tower 6 to a pipeline of the snakelike heat exchange coil 7; heat-carrying pure water (main circulating water) passes through a snakelike heat exchange coil 7 in a closed cooling tower 6, exchanges heat with spray water and air and then passes through a closed cooling tower 6 outlet valve connecting pipeline to a rectifying device 1 inlet valve elbow, pure water (main circulating water) is communicated with a rectifying device 1 main circulating water pipeline after rectifying device 1 inlet valve exchanges heat and cools, and the main circulating water outputs the heat-carrying pure water (main circulating water) after passing through the rectifying device 1 main circulating water pipeline, so that a closed circulating loop is formed.
Further, the main circulating water system of the utility model also comprises an ion exchanger 5; the automatic reversing valve of the circulating pump 4 is connected with an inlet valve elbow of the ion exchanger 5 through a pipeline, and an outlet valve elbow of the ion exchanger 5 is connected with a pipeline to the gas-water separator 3.
Namely: when the main circulating water needs to be purified, the automatic reversing valve of the circulating pump 4 is connected with the inlet valve elbow of the ion exchanger 5 through a pipeline, and the main circulating water is subjected to fractional lift purification by the ion exchanger 5 and then is connected with the pipeline to the gas-water separator 3 through the outlet valve elbow of the ion exchanger 5.
Further, the circulating pump 4 or the ion exchanger 5 of the present invention is respectively set to be two in parallel connection.
Furthermore, the spray water double-water-replenishing water storage system of the utility model comprises a water storage tank 13, an electromagnetic valve 20, a pressure water pump 14, a pressure pump room water supply outlet valve 15 and a standby pressure pump room water supply outlet valve 16;
the closed cooling tower 6 comprises a liquid level float valve 18 arranged on the side wall;
the water supply outlet valve 15 of the pressure pump room is connected with a liquid level ball float valve 18 through a first water outlet pipeline 15.1 to supply water to the spraying water collecting tank 9;
the water supply outlet valve 15 of the pressure pump room is connected with the electromagnetic valve 20 through a second water outlet pipeline 15.2 to replenish water to the water storage tank 13, the water storage tank 13 is connected with the inlet valve of the pressure water pump 14 through a pipeline, and the outlet valve of the pressure water pump 14 is connected with the liquid level ball float valve 18 to replenish water to the spray water collecting tank 9;
a backup pressurized pump house water supply outlet valve 16 is provided connected to a level float valve 18 via a first outlet conduit 15.1.
Namely: when the water supply fault of the water supply pipeline [ the first water outlet pipeline or the second water outlet pipeline ] of the pressure pump room or the water storage tank 13 occurs, the standby pressure pump room water supply outlet valve 16 is manually opened and the pressure pump room water supply outlet valve 15 is manually closed, and the standby pressure pump room water supply outlet valve 16 is connected with the liquid level ball float valve 18 through the first water outlet pipeline 15.1 to supply water to the spray water collection tank 9; the second water outlet pipeline 15.2 is connected with an electromagnetic valve 20 for supplying water to the water storage tank 13, the water storage tank 13 is connected with an inlet valve of a pressure water pump 14 through a pipeline, and an outlet valve of the pressure water pump 14 is connected with a liquid level ball float valve 18 for supplying water to the spraying water collecting tank 9.
Further, the pressure water pump 14 of the present invention is provided in two parallel.
Further, storage water tank 13 on be provided with transparent liquid level observation tube 21.
Further, closed cooling tower 6 still including set up in the bottom spray header tank 9, set up the drain valve 19 on the lateral wall, with 6 bottom connection of closed cooling tower spray water pump 8, set up shower nozzle 10, the filler district 11 of setting between shower nozzle 10 and snakelike heat exchange coil 7, set up the opening at the top of upper portion position in closed cooling tower 6.
Further, the utility model discloses be provided with fan 12 on the opening at top.
Further, the utility model discloses be provided with level gauge 17 on spraying header tank 9.
Further, the number of the nozzles 10 of the present invention is set to be plural.
The utility model has the advantages that: through the improvement to the cold system of current convertor station valve that has now disclosed, adopt a cold spray water two moisturizing water storage system of convertor station valve, both using water wisely, optimize the spray water moisturizing system structure again and improve the moisturizing system reliability.
Drawings
Fig. 1 is a schematic view of the working principle of the present invention.
The reference numbers in the figures are: 1-a rectifying device; 2-a buffer water tank; 3-a gas-water separator; 4-a circulating pump; 5-an ion exchanger; 6-closed cooling tower; 7-serpentine heat exchange coil; 8-a spray water pump; 9-spraying water collecting tank; 10-a spray head; 11-a packing zone; 12-a fan; 13-a water storage tank; 14-a pressurized water pump; 15-a water supply outlet valve of the pressurizing pump room; 15.1-a first outlet conduit; 15.2-a second outlet conduit; 16-a spare pressurized pump room water supply outlet valve; 17-a liquid level meter; 18-liquid level float valve; 19-a drain valve; 20-an electromagnetic valve; 21-transparent liquid level observation tube; 22-a drain valve.
Detailed Description
The invention will be further explained with reference to the drawings: as shown in fig. 1:
a cold spray water double-water-replenishing water storage system of a converter station valve comprises a rectifying device 1, a buffer water tank 2, a gas-water separator 3, a circulating pump 4, an ion exchanger 5, a closed cooling tower 6, a snakelike heat exchange coil 7, a spray water pump 8, a spray water collecting tank 9, a spray head 10, a packing area 11, a fan 12, a water storage tank 13, a pressure water pump 14, a pressure pump room water supply outlet valve 15 (normally open type), a standby pressure pump room water supply outlet valve 16 (normally closed type), a liquid level meter 17, a liquid level ball float valve 18, a drain valve 19, an electromagnetic valve 20, a transparent liquid level observation pipe 21 and a drain valve 22;
the connection mode is as follows: the heat-carrying pure water (main circulating water) output by the rectifying device 1 enters a gas-water separator 3 through a buffer water tank 2, air is separated out by the gas-water separator 3 and then enters a circulating pump 4 (one for one use and one for standby) (when the main circulating water needs to be purified, an automatic reversing valve of the circulating pump 4 is connected with an inlet valve of an ion exchanger 5 through a pipeline, the main circulating water is lifted and purified by the ion exchanger 5 and then is connected with the gas-water separator 3 through an outlet valve of the ion exchanger 5, and the main circulating water enters a serpentine heat exchange coil 7 of a closed cooling tower 6 after being pressurized by the circulating pump 4 to exchange heat in the closed cooling tower 6 and simultaneously passes through the following two forms of heat exchange;
the main circulating water flows in the serpentine heat exchange coil 6, the spray water pump 8 conveys spray water from the lower spray header tank 9 to the upper spray header tank spray head 10, the spray water is sprayed on the surface of the filler area 11 through the spray head 10 and then uniformly sprayed on the surface of the serpentine heat exchange coil 7 so as to exchange heat with the main circulating water in the serpentine heat exchange coil 7, and in the process that the spray water is sprayed downwards from the filler area 11, natural wind exchanges heat with the spray water through the filler area 11 and then passes through the fan 12 at the top of the tower body to discharge hot air into the atmosphere; natural wind outside the closed cooling tower 6 enters the tower body through an air inlet grille beside the snakelike heat exchange coil 7, and when the natural wind flows through the snakelike heat exchange coil 7, the wind exchanges heat with main circulating water inside the snakelike heat exchange coil 7 and is exhausted to the atmosphere through a fan 12 at the top of the closed cooling tower 6; the main circulating water is subjected to heat exchange in the two modes to reduce the water temperature, and then enters the rectifying device 1 through the connecting pipeline, so that a closed circulating loop is formed.
The spray water double-water-replenishing water storage system comprises a closed cooling tower 6, a spray water pump 8, a water storage tank 13, a pressurized water pump 14, a pressurized pump room water supply outlet valve 15 (normally open type), and a standby pressurized pump room water supply outlet valve 16 (normally closed type);
the closed cooling tower 6 is provided with a liquid level meter 17, a liquid level ball float valve 18 and a drain valve 19;
the water storage tank 13 comprises an electromagnetic valve 20, a transparent liquid level observation pipe 21 and a drain valve 22; a first water outlet pipeline of the water supply outlet valve 15 of the pressurizing pump room is connected with a liquid level ball float valve 18 of the closed cooling tower 6 for replenishing water to a spray header tank 17 of the closed cooling tower 6, a second water outlet pipeline is connected with an electromagnetic valve 20 of a water storage tank 13 for replenishing water to the water storage tank 13, the lower part of the water storage tank 13 is connected with an inlet valve elbow of a pressurizing water pump 14 through a pipeline, and an outlet valve elbow of the pressurizing water pump 14 is connected with the liquid level ball float valve 18 to the spray header tank 9 for replenishing water; and a water outlet pipeline of a water supply outlet valve 16 of the standby pressurizing pump room is connected with a liquid level ball float valve 18 of the closed cooling tower 6 for replenishing water to a spray water collecting tank 17 of the closed cooling tower 6 for replenishing water.
The spray water double-water-replenishing water storage system has the working principle that:
1. when the water supply of the pressure pump room or the standby pressure pump room supplies water to replenish the spray water in the spray water collecting tank 9, and the liquid level of the spray water is 0.5 m lower than the set liquid level of the liquid level meter 17, the liquid level float valve 18 liquid level switch is linked to open a water outlet pipeline from the pressure pump room water supply outlet valve 15 (normally open, the outlet valve is manually closed in case of failure) or the standby pressure pump room water supply outlet valve 16 (when the water supply pipeline of the pressure pump room water supply outlet valve 15 fails, the standby pressure pump room water supply outlet valve 16 is manually opened) to the spray water collecting tank 9 for replenishing water; when the liquid level of the spray water is 0.5 m higher than the set liquid level of the liquid level meter 17, the liquid level switch of the liquid level float valve 18 is automatically closed, and the water supplement of the spray water is stopped.
2. When the water supply of the pressure pump room or the water supply of the spare pressure pump room fails, the water storage tank 13 is utilized to supplement the spray water, when the spray water liquid level of the spray water collection tank 9 is lower than the set liquid level of the liquid level meter 17, the liquid level float valve 18 liquid level switch is automatically opened at the moment, the water storage tank 13 enters the spray water collection tank 9 to supplement the water after being pressurized by the pressure water pump 14, when the supplement liquid level is higher than the set liquid level of the liquid level meter 17 by 0.5 meter, the liquid level float valve 18 liquid level switch is automatically closed to stop the water supplement of the spray water, and the surplus spray water with the supplement liquid level higher than the set liquid level of the liquid level meter 17 by 0.5 meter is discharged out of the spray water collection tank 9 through the drain valve 19.
3. When the pressurizing pump room supplies water to store and replenish water in the water storage tank 13, the liquid level of the water storage tank 13 is set to be between 1.8 and 2.5 meters and is a safe water storage amount liquid level (the electromagnetic valve 20 of the water storage tank 13 cannot be opened), and the electromagnetic valve 20 can be manually opened to store and replenish water in the water storage tank 13 by observing the liquid level through the transparent liquid level observation tube 21; when the water storage liquid level of the water storage tank 13 is 1.8 m lower than the set liquid level, the electromagnetic valve 20 senses pressure and is electrified to be opened, water is supplied to the water storage tank 13 by the pressurizing pump room to replenish water, and the electromagnetic valve 20 is powered off to be closed when the water replenishing liquid level reaches the set safe liquid level, so that water replenishing is stopped. When the water storage liquid level of the water storage tank 13 is 2.5 meters higher than the set liquid level, the redundant water storage is discharged by manually opening the drain valve 22.
The above description is only a part of the specific embodiments of the present invention (since the technical solution of the present invention relates to a combination of multiple components, the embodiments cannot be exhaustive, the protection scope of the present invention is based on the description of the component structure and other technical essential scope of the present invention), and the well-known specific content or common knowledge in the solution is not described herein. It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and for those skilled in the art, all the technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A cold spray water double-water-replenishing water storage system of a converter station valve is characterized by comprising a main circulating water system, a spray water double-water-replenishing water storage system and a closed cooling tower (6);
the closed cooling tower (6) comprises a snakelike heat exchange coil (7) arranged in the closed cooling tower, and the snakelike heat exchange coil (7) is arranged between an inlet valve of the closed cooling tower (6) and an outlet valve of the closed cooling tower (6);
the main circulating water system is arranged at two ends of the snakelike heat exchange coil (7); the spray water double-water-replenishing water storage system is also arranged at two ends of the snakelike heat exchange coil (7);
the main circulating water system comprises a rectifying device (1), a buffer water tank (2), a gas-water separator (3), a circulating pump (4) and a snakelike heat exchange coil (7);
a water outlet pipeline at the output end of the rectifying device (1) is connected with an inlet valve bent pipe of the buffer water tank (2), an outlet valve bent pipe of the buffer water tank (2) is connected with the gas-water separator (3), and the gas-water separator (3) is connected with an inlet valve bent pipe of the circulating pump (4);
an automatic reversing valve elbow of the circulating pump (4) is connected to an inlet valve of the closed cooling tower (6) and a pipeline from the inlet valve to the snakelike heat exchange coil (7); an outlet valve of the closed cooling tower (6) is connected with a pipeline to an inlet valve elbow of the rectifying device (1) to form a closed circulation loop.
2. The cold shower water double-replenishing water storage system of the converter station valve according to claim 1, wherein the main circulating water system further comprises an ion exchanger (5); the automatic reversing valve of the circulating pump (4) is connected with an inlet valve elbow of the ion exchanger (5) through a pipeline, and an outlet valve elbow of the ion exchanger (5) is connected with the pipeline to the gas-water separator (3).
3. The cold spray water double-replenishing water storage system of the converter station valve according to claim 2, wherein the circulating pump (4) or the ion exchanger (5) is respectively provided as two connected in parallel.
4. The cold spray water double-water-supplement water storage system of the converter station valve according to claim 1, characterized in that the spray water double-water-supplement water storage system comprises a water storage tank (13), an electromagnetic valve (20), a pressurized water pump (14), a pressurized pump room water supply outlet valve (15) and a standby pressurized pump room water supply outlet valve (16);
the closed cooling tower (6) comprises a liquid level ball float valve (18) arranged on the side wall;
a water supply outlet valve (15) of the pressure pump room is connected with a liquid level ball float valve (18) through a first water outlet pipeline (15.1) to supply water to a spraying water collecting tank (9);
a water supply outlet valve (15) of the pressurizing pump room is connected with an electromagnetic valve (20) through a second water outlet pipeline (15.2) to supplement water to a water storage tank (13), the water storage tank (13) is connected with an inlet valve of a pressurizing water pump (14) through a pipeline, and the outlet valve of the pressurizing water pump (14) is connected with a liquid level ball float valve (18) to supplement water to a spraying water collecting tank (9);
a spare pressure pump room water supply outlet valve (16) is arranged to be connected to a liquid level ball float valve (18) through a first water outlet pipeline (15.1).
5. The cold shower water double-replenishing water storage system according to claim 4, wherein the two pressurized water pumps (14) are arranged in parallel.
6. The cold shower water double-replenishing water storage system of the converter station valve according to claim 4, characterized in that a transparent liquid level observation pipe (21) is arranged on the water storage tank (13).
7. The cold spray water double-water-replenishing water storage system of the converter station valve according to claim 1, 2, 3, 4, 5 or 6, wherein the closed cooling tower (6) further comprises a spray water collecting tank (9) arranged at the bottom, a drain valve (19) arranged on the side wall, a spray water pump (8) connected with the bottom of the closed cooling tower (6), a spray head (10) arranged at the upper part in the closed cooling tower (6), a packing area (11) arranged between the spray head (10) and the serpentine heat exchange coil (7), and an opening arranged at the top.
8. The converter station valve cold spray water double water replenishing and storing system according to claim 7, characterized in that a fan (12) is arranged on the opening of the top.
9. The converter station valve cold spray water double-replenishing water storage system according to claim 7, characterized in that a level gauge (17) is arranged on the spray header tank (9).
10. The cold shower water replenishing and storing system for the converter station valve according to claim 7, wherein the number of the spray heads (10) is set to be multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022846765.0U CN214286383U (en) | 2020-12-01 | 2020-12-01 | Converter station valve cold spray water double-water-replenishing water storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022846765.0U CN214286383U (en) | 2020-12-01 | 2020-12-01 | Converter station valve cold spray water double-water-replenishing water storage system |
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| Publication Number | Publication Date |
|---|---|
| CN214286383U true CN214286383U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022846765.0U Active CN214286383U (en) | 2020-12-01 | 2020-12-01 | Converter station valve cold spray water double-water-replenishing water storage system |
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| Country | Link |
|---|---|
| CN (1) | CN214286383U (en) |
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2020
- 2020-12-01 CN CN202022846765.0U patent/CN214286383U/en active Active
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