Liquid cooling capacity recovery system

Abstract

The utility model relates to a liquid cooling capacity recovery system, and belongs to the technical field of cooling capacity recovery, the liquid cooling capacity recovery system comprises a liquid storage tank, a vaporizer, a circulating water pool, a water cooling tower, an air cooling tower and a connecting pipeline, the liquid storage tank, the vaporizer, the water cooling tower and the air cooling tower are sequentially connected through the connecting pipeline, and the circulating water pool is connected with the vaporizer through the connecting pipeline; a connecting pipeline of the vaporizer is connected to the position, close to the top, of the water cooling tower, and a connecting pipeline of the water cooling tower is connected to the position, close to the top, of the air cooling tower from the bottom of the water cooling tower, so that the problems that liquid (liquid oxygen, liquid nitrogen and liquid argon) vaporization and compressed air cooling are involved, and cooling capacity is wasted on one side; the technical problem that the energy waste is greatly increased due to the fact that a large amount of cooling capacity is needed to cool the gas on the other side when the cooling capacity is not fully utilized and a large amount of cost is needed to cool the gas at the same time is solved, and the application has the effect of reducing the possibility of energy waste.

Description

Technical Field

[0001] The present application relates to the field of cold recovery technology, and in particular to a liquid cold recovery system. Background Art

[0002] The cryogenic oxygen production air separation process is that before the compressed air enters the distillation tower, it needs to pass through a purifier to remove impurities. Before the compressed air enters the molecular sieve purification, it is cooled by an ice machine. The compressed air temperature (about 80-90°C) is cooled to below 12°C through an air cooling tower to remove liquid free water before entering the molecular sieve purification system. This process requires the use of cold energy to cool the compressed air.

[0003] For the cooling of both liquid (liquid oxygen, liquid nitrogen, liquid argon) vaporization and compressed air, there is a waste of cold on one side, and a large amount of cold is needed to cool the gas on the other side, so that the cold cannot be fully utilized and a large amount of cost is required to cool the gas, which greatly increases the waste of energy. Utility Model Content

[0004] In order to reduce the possibility of energy waste, the present application provides a liquid cooling recovery system.

[0005] The present application provides a liquid cooling recovery system, which adopts the following technical solution:

[0006] A liquid cooling recovery system comprises a circulating water pool, a liquid storage tank, a vaporizer, a water cooling tower, an air cooling tower and a connecting pipe, wherein the liquid storage tank, the vaporizer, the water cooling tower and the air cooling tower are connected in sequence via the connecting pipe, and the circulating water pool is connected to the vaporizer via the connecting pipe, wherein the connecting pipe of the vaporizer is connected to a position near the top of the water cooling tower, and the connecting pipe of the water cooling tower is connected from the bottom of the water cooling tower to a position near the top of the air cooling tower.

[0007] By adopting the above technical scheme, the liquid in the liquid storage tank enters the vaporizer through the connecting pipe, and the water in the circulating water pool enters the vaporizer through the branch pipe. When the liquid in the vaporizer vaporizes, the heat in the water is absorbed to cool the water entering the vaporizer. The cooled water in the vaporizer enters the water cooling tower through the connecting pipe, and the water in the water cooling tower enters the air cooling tower through the connecting pipe, so that the cold energy of vaporizing the liquid can be used in other processes, thereby reducing the possibility of energy waste.

[0008] Optionally, the connecting pipe of the circulating water pool includes a main pipe, the main pipe is provided with three branch pipes, one of the branch pipes is connected to the vaporizer, one of the branch pipes is connected to the water cooling tower, and the other branch pipe is connected to a position near the top of the air cooling tower, a first electric valve is provided on the branch pipe where the vaporizer is located, the first electric valve is electrically connected to the control module, and a second electric valve is provided on the connecting pipe between the vaporizer and the water cooling tower, and the second electric valve is electrically connected to the control module.

[0009] Optionally, a circulating water pool outlet valve, a first filter, a first water pump and a first water pump outlet valve are sequentially arranged on the main pipeline, and the first water pump is electrically connected to the control module.

[0010] Optionally, a third electric valve is provided in the branch pipeline where the water cooling tower is located, and the third electric valve is electrically connected to the control module.

[0011] Optionally, a dirty nitrogen pipeline is further provided on the water cooling tower, and the dirty nitrogen pipeline is arranged in the middle position of the water cooling tower. A fourth electric valve is also provided on the dirty nitrogen pipeline, and the fourth electric valve is electrically connected to the control module.

[0012] By adopting the above technical solution and setting up a dirty nitrogen pipeline, the dirty nitrogen enters the water cooling tower to cool the water entering the water cooling tower from the vaporizer again, so that the dirty nitrogen generated in other processes in the production process can participate in the cooling step in the water, thereby improving the utilization rate of resources.

[0013] Optionally, a water cooling tower outlet valve, a second filter, a second water pump, a second water pump outlet valve, an ice machine and a fifth electric valve are sequentially arranged on the connecting pipe between the water cooling tower and the air cooling tower, and the fifth electric valve and the second water pump are both electrically connected to the control module.

[0014] Optionally, a branch pipeline where the air-cooling tower is located is connected to a position near the top of the air-cooling tower, and a sixth electric valve is further provided on the branch pipeline, and the sixth electric valve is electrically connected to the control module.

[0015] Optionally, a flow detection module is provided on the connecting pipelines where the first electric valve, the second electric valve, the third electric valve, the fifth electric valve and the sixth electric valve are located, and the flow detection module is electrically connected to the control module.

[0016] Optionally, a liquid storage tank outlet valve, a liquid pump and a one-way valve are sequentially arranged on the connecting pipe between the liquid storage tank and the vaporizer.

[0017] Optionally, the liquid cooling recovery system further includes a decooling water tower, and the decooling water tower is connected to the air tower via the connecting pipe.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. The liquid in the liquid storage tank enters the vaporizer through the connecting pipe, and the water in the circulating water pool enters the vaporizer through the branch pipe. When the liquid in the vaporizer vaporizes, the heat in the water is absorbed to cool the water entering the vaporizer. The cooled water in the vaporizer enters the water cooling tower through the connecting pipe, and the water in the water cooling tower enters the air cooling tower through the connecting pipe, so that the cold energy of the vaporized liquid can be used in other processes, thereby reducing the possibility of energy waste;

[0020] 2. By setting up a dirty nitrogen pipeline, the dirty nitrogen enters the water cooling tower to cool the water entering the water cooling tower from the vaporizer again, so that the dirty nitrogen generated by other processes in the production process can participate in the cooling step in the water, thereby improving the utilization rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a liquid cooling recovery system in an embodiment of the present application.

[0022] Figure 2 It is a structural block diagram of the control module control in the embodiment of the present application.

[0023] Explanation of the accompanying drawings: 1. circulating water pool; 11. circulating water pool outlet valve; 12. first filter; 13. first water pump; 14. first water pump outlet valve; 2. liquid storage tank; 21. liquid storage tank outlet valve; 22. liquid pump; 23. one-way valve; 3. vaporizer; 31. first electric valve; 32. control module; 33. flow detection module; 34. second electric valve; 4. water cooling tower; 41. third electric valve; 42. fourth electric valve; 43. water cooling tower outlet valve; 44. second filter; 45. second water pump; 46. second water pump outlet valve; 47. ice machine; 48. fifth electric valve; 5. air cooling tower; 51. sixth electric valve; 6. cooling water tower; 61. seventh electric valve; 62. manual valve. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-2 This application is described in further detail.

[0025] The present application embodiment discloses a liquid cooling recovery system, referring to Figure 1 and Figure 2The liquid cooling capacity recovery system includes a circulating water pool 1, a liquid storage tank 2, a vaporizer 3, a water cooling tower 4, an air cooling tower 5 and a connecting pipe, wherein the liquid storage tank 2, the vaporizer 3, the water cooling tower 4 and the air cooling tower 5 are connected in sequence through the connecting pipe, wherein the connecting pipe of the circulating water pool 1 includes a main pipe, on which there are three branch pipes, one of which is connected to the vaporizer 3, one of which is connected to the water cooling tower 4, and the branch pipe where the water cooling tower 4 is located is merged with the connecting pipe between the vaporizer 3 and the water cooling tower 4 at a position close to the water cooling tower 4, and the other branch pipe is connected to a position close to the top of the air cooling tower 5, wherein the connecting pipe between the vaporizer 3 and the water cooling tower 4 is connected to a position close to the top of the water cooling tower 4, and the connecting pipe between the water cooling tower 4 and the air cooling tower 5 is connected from the bottom of the water cooling tower 4 to a position close to the top of the air cooling tower 5.

[0026] The liquid in the liquid storage tank 2 enters the vaporizer 3 through the connecting pipe, and the water in the circulating water pool 1 enters the vaporizer 3 through the branch pipe. When the liquid in the vaporizer 3 vaporizes, the heat in the water is absorbed to cool the water entering the vaporizer 3. The cooled water in the vaporizer 3 enters the water cooling tower 4 through the connecting pipe, and the water in the water cooling tower 4 enters the air cooling tower 5 through the connecting pipe.

[0027] A liquid storage tank outlet valve 21, a liquid pump 22 and a one-way valve 23 are sequentially arranged on the connecting pipe between the liquid storage tank 2 and the vaporizer 3. When the liquid in the liquid storage tank 2 needs to be vaporized, the liquid storage tank outlet valve 21 is opened, and the liquid pump 22 is started, so that the liquid in the liquid storage tank 2 enters the vaporizer 3 through the connecting pipe. By setting the one-way valve 23, the liquid in the liquid storage tank 2 can only flow into the vaporizer 3 in one direction.

[0028] A circulating water pool outlet valve 11, a first filter 12, a first water pump 13 and a first water pump outlet valve 14 are sequentially arranged on the main pipeline of the circulating water pool 1, a first electric valve 31 and a flow detection module 33 are arranged on the branch pipeline where the vaporizer 3 is located, the first electric valve 31 is electrically connected to the control module 32, the flow detection module 33 and the first water pump 13 are both electrically connected to the control module 32, a second electric valve 34 and a flow detection module 33 are arranged on the connecting pipeline between the vaporizer 3 and the water cooling tower 4, and the second electric valve 34 is electrically connected to the control module 32.

[0029] When the water in the circulating water pool 1 needs to enter the vaporizer 3, the circulating water pool outlet valve 11, the first water pump outlet valve 14 and the first electric valve 31 are opened, and the first water pump 13 is started to allow the water in the circulating water pool 1 to enter the vaporizer 3. By setting the flow detection module 33, the water volume in the vaporizer 3 is maintained at a preset water volume. The flow detection module 33 detects the water volume data flowing into the vaporizer 3 and the water volume data flowing out of the vaporizer 3 in real time. The flow detection module 33 sends the detected water volume data to the control module 32. When the control module 32 receives the water volume data, it calculates the difference between the water volume data at the first electric valve 31 and the second electric valve 34, thereby determining the water volume data in the vaporizer 3. When the water volume data in the vaporizer 3 is less than the preset water volume, the control module 32 controls the opening of the first electric valve 31 to replenish the water volume in the vaporizer 3.

[0030] A third electric valve 41 and a flow detection module 33 are provided in the branch pipe where the water cooling tower 4 is located. The third electric valve 41 is electrically connected to the control module 32. When the flow data received by the control module 32 through the first electric valve 31 is greater than a preset value, the control module 32 controls the opening of the third electric valve 41 to become smaller, thereby allowing more cold water to enter the water cooling tower 4.

[0031] A dirty nitrogen pipeline is also fixedly connected to the middle position of the water cooling tower 4, wherein the source of the dirty nitrogen can be an air separation tower. A fourth electric valve 42 is provided on the dirty nitrogen pipeline, and the fourth electric valve 42 is electrically connected to the control module 32. The dirty nitrogen enters the water cooling tower 4 by opening the fourth electric valve 42, and the water entering the water cooling tower 4 from the circulating water pool 1 and the vaporizer 3 exchanges heat with the dirty nitrogen and then flows into the water cooling tower 4, and the dirty nitrogen is discharged from the top of the water cooling tower 4.

[0032] The connecting pipe between the water cooling tower 4 and the air cooling tower 5 is connected from the bottom of the water cooling tower 4 to a position near the top of the air cooling tower 5, and a water cooling tower outlet valve 43, a second filter 44, a second water pump 45, a second water pump outlet valve 46, an ice machine 47 and a fifth electric valve 48 are sequentially arranged on the connecting pipe between the water cooling tower 4 and the air cooling tower 5. The fifth electric valve 48 and the second water pump 45 are both electrically connected to the control module 32. When it is necessary to transport the water in the water cooling tower 4 to the air cooling tower 5, the water cooling tower outlet valve 43, the second water pump outlet valve 46 and the fifth electric valve 48 are opened, so that the water in the water cooling tower 4 is transported to the air cooling tower 5, and a flow detection module 33 is also arranged on the connecting pipe where the fifth electric valve 48 is located.

[0033] The branch pipeline where the air cooling tower 5 is located is located below the connecting pipeline between the water cooling tower 4 and the air cooling tower 5. A sixth electric valve 51 is provided on the branch pipeline where the air cooling tower 5 is located. The sixth electric valve 51 is electrically connected to the control module 32. A flow detection module 33 is provided on the pipelines where the fifth electric valve 48 and the sixth valve are located. When the flow data received by the control module 32 through the fifth electric valve 48 is greater than a preset value, the control module 32 controls the opening of the sixth electric valve 51 to become smaller, so that more cold water enters the air cooling tower 5.

[0034] The liquid cooling capacity recovery system also includes a water decooling tower 6, which is connected to the air cooling tower 5 via a connecting pipe, and two connecting pipes are provided between the water decooling tower 6 and the air cooling tower 5, one of which is provided with a seventh electric valve 61, and the other is provided with a manual valve 62. The seventh electric valve 61 is electrically connected to the control module 32. When the water in the air cooling tower 5 needs to be transported to the water decooling tower 6, it is only necessary to open the seventh electric valve 61 or the manual valve 62.

[0035] In this embodiment, the liquid storage tank outlet valve 21, the circulating water pool outlet valve 11, the water cooling tower outlet valve 43, the first water pump outlet valve 14, the second water pump outlet valve 46 and the water cooling tower outlet valve 43 are all manual valves. In other optional embodiments, the liquid storage tank outlet valve 21, the circulating water pool outlet valve 11, the water cooling tower outlet valve 43, the first water pump outlet valve 14, the second water pump outlet valve 46 and the water cooling tower outlet valve 43 can be electric valves, and there is no specific limitation on this. The flow detection module 33 can use a flow meter.

[0036] The implementation principle of a liquid cooling recovery system in the embodiment of the present application is as follows:

[0037] When the liquid needs to be vaporized, the liquid storage tank outlet valve 21 is opened, and the liquid pump 22 is started to allow the liquid in the liquid storage tank 2 to enter the vaporizer 3. By setting the one-way valve 23, the liquid in the liquid storage tank 2 can only flow into the vaporizer 3 in one direction. At this time, the circulating water pool outlet valve 11, the first water pump outlet valve 14 and the first electric valve 31 are opened, and the first water pump 13 is started to allow the water in the circulating water pool 1 to enter the vaporizer 3. At this time, the liquid in the vaporizer 3 absorbs the heat in the water to cool the water in the circulating water pool 1 entering the vaporizer 3. The cooled water in the vaporizer 3 enters the water cooling tower 4 through the connecting pipe, and the water in the water cooling tower 4 enters the air cooling tower 5 through the connecting pipe. At this time, the water in the circulating water pool 1 will also enter the water cooling tower 4.

[0038] When the water in the water cooling tower 4 needs to be transported to the air cooling tower 5, when the water in the water cooling tower 4 needs to be transported to the air cooling tower 5, the water cooling tower outlet valve 41, the second water pump outlet valve 46, and the fifth electric valve 48 are opened, so that the water in the water cooling tower 4 is transported to the air cooling tower 5. At this time, the water in the circulating water pool 1 will also enter the air cooling tower 5.

[0039] When the contaminated nitrogen needs to enter the water cooling tower 4 to cool the water entering the water cooling tower 4, the fourth electric valve 42 is opened.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liquid cooling recovery system, characterized in that: The invention comprises a circulating water pool (1), a liquid storage tank (2), a vaporizer (3), a water cooling tower (4), an air cooling tower (5) and a connecting pipe, wherein the liquid storage tank (2), the vaporizer (3), the water cooling tower (4) and the air cooling tower (5) are connected in sequence via the connecting pipe, and the circulating water pool (1) is connected to the vaporizer (3) via the connecting pipe, wherein the connecting pipe of the vaporizer (3) is connected to a position near the top of the water cooling tower (4), and the connecting pipe of the water cooling tower (4) is connected from the bottom of the water cooling tower (4) to a position near the top of the air cooling tower (5).

2. A liquid cooling recovery system according to claim 1, characterized in that: The connecting pipeline of the circulating water pool (1) comprises a main pipeline, and the main pipeline is provided with three branch pipelines, one of the branch pipelines is connected to the vaporizer (3), one of the branch pipelines is connected to the water cooling tower (4), and another branch pipeline is connected to a position near the top of the air cooling tower (5). A first electric valve (31) is provided on the branch pipeline where the vaporizer (3) is located, and the first electric valve (31) is electrically connected to a control module (32). A second electric valve (34) is provided on the connecting pipeline between the vaporizer (3) and the water cooling tower (4), and the second electric valve (34) is electrically connected to the control module (32).

3. A liquid cooling recovery system according to claim 2, characterized in that: A circulating water pool outlet valve (11), a first filter (12), a first water pump (13) and a first water pump outlet valve (14) are sequentially arranged on the main pipeline, and the first water pump (13) is electrically connected to a control module (32).

4. A liquid cooling recovery system according to claim 2 or 3, characterized in that: A third electric valve (41) is provided in the branch pipeline where the water cooling tower (4) is located, and the third electric valve (41) is electrically connected to the control module (32).

5. A liquid cooling recovery system according to claim 4, characterized in that: The water cooling tower (4) is also provided with a dirty nitrogen pipeline, which is arranged in the middle of the water cooling tower (4). A fourth electric valve (42) is also provided on the dirty nitrogen pipeline, and the fourth electric valve (42) is electrically connected to the control module (32).

6. A liquid cooling recovery system according to claim 5, characterized in that: A water cooling tower outlet valve (43), a second filter (44), a second water pump (45), a second water pump outlet valve (46), an ice machine (47) and a fifth electric valve (48) are sequentially arranged on the connecting pipe between the water cooling tower (4) and the air cooling tower (5); the fifth electric valve (48) and the second water pump (45) are both electrically connected to the control module (32).

7. A liquid cooling recovery system according to claim 6, characterized in that: A sixth electric valve (51) is also provided on the branch pipeline where the air cooling tower (5) is located, and the sixth electric valve (51) is electrically connected to the control module (32).

8. A liquid cooling recovery system according to claim 7, characterized in that: A flow detection module (33) is provided on the connecting pipelines where the first electric valve (31), the second electric valve (34), the third electric valve (41), the fifth electric valve (48) and the sixth electric valve (51) are located, and the flow detection module (33) is electrically connected to the control module (32).

9. The liquid cooling recovery system according to claim 1, characterized in that: A liquid storage tank outlet valve (21), a liquid pump (22) and a one-way valve (23) are sequentially arranged on the connecting pipeline between the liquid storage tank (2) and the vaporizer (3).

10. The liquid cooling recovery system according to claim 1, characterized in that: The liquid cooling recovery system further comprises a de-cooling water tower (6), and the de-cooling water tower (6) is connected to the air cooling tower (5) via the connecting pipe.

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