Circulating cooling water supply and return water system of air compressor

Abstract

The utility model relates to the technical field of circulating water supply and return of air compressors, in particular to a circulating cooling water supply and return system of an air compressor. According to the technical scheme, the device comprises a nitrogen station, an air compressor, a freezing dryer, a cold water pool and a hot water pool, a cold water main flow pipe is installed on the cold water pool and connected with a first cold water branch pipe and a second cold water branch pipe, and the first cold water branch pipe is connected with a first cold water small pipe, a second cold water small pipe and a third cold water small pipe; the first cold water small pipe, the second cold water small pipe and the third cold water small pipe are connected with the nitrogen station, the air compressor and the freezing dryer respectively. In the cold repair process, the air compressor does not stop when the old gas protection underground circulating water pipeline is dismantled and laid again for construction, power consumption is reduced on the premise that safe gas supply is guaranteed, and cost is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressor water cooling, in particular to a circulating cooling water supply and return system for an air compressor. Background Art

[0002] A large amount of heat is generated during the operation of the air compressor. In order to ensure the normal operation of the air compressor, the air compressor needs to be cooled. The currently commonly used cooling method is water cooling.

[0003] At present, when water-cooling the air compressor, an open water supply pipeline is used, that is, the water in the cold water pool is sent to the air compressor for cooling, the cooled water is sent to the hot water pool for cooling, and the cooled water is sent to the cold water pool again. This requires multiple water pumps to work, which will inevitably cause the cooling water circulation system to be more expensive and there are multiple hidden dangers. Any failure of any water pump will affect the normal operation of the air compressor. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an air compressor circulating cooling water supply and return system which adopts a closed cycle, has lower cost and more reliable operation.

[0005] The technical solution of the utility model is: an air compressor circulating cooling water supply and return system, comprising an air compressor, a cold water tank, a cold water pump and a cooling tower, a cooling water inlet pipe and a cooling water outlet pipe are arranged between the cold water tank and the air compressor, the cold water pump is arranged on the cooling water inlet pipe, the cooling tower is arranged on the cooling water outlet pipe, and the cooling tower is arranged higher than the cold water tank;

[0006] A sealed air compressor cooling water jacket is provided on the outside of the air compressor, a cooling water inlet pipe is sealedly connected to the cooling water inlet of the air compressor cooling water jacket, and a cooling water outlet pipe is sealedly connected to the cooling water outlet of the air compressor cooling water jacket.

[0007] Preferably, it further comprises a cold dryer, wherein the compressed gas outlet of the air compressor is connected to the inlet of the cold dryer through a pipeline;

[0008] A sealed cold dryer cooling water jacket is provided on the outside of the cold dryer, a cooling water inlet pipe is sealedly connected to the cooling water inlet of the cold dryer cooling water jacket, and a cooling water outlet pipe is sealedly connected to the cooling water outlet of the cold dryer cooling water jacket.

[0009] Preferably, the cooling water outlet of the cooling water jacket of the cold dryer and the cooling water inlet of the cooling water jacket of the air compressor are sealedly connected via parallel water outlet pipelines, and the cooling water outlet pipe is connected to the parallel water outlet pipelines.

[0010] Preferably, the cooling water inlet pipe is connected to the air compressor cooling water jacket through a first cooling water inlet pipe, and the cooling water inlet pipe is connected to the cold dryer cooling water jacket through a second cooling water inlet pipe. Valves are respectively provided on the first cooling water inlet pipe and the second cooling water inlet pipe, and valves are also respectively provided at the ends of the parallel water outlet pipe connecting the air compressor cooling water jacket and the cold dryer cooling water jacket.

[0011] Preferably, at least one cooling grate is provided between the cooling tower and the cold water pool.

[0012] Preferably, a plurality of water holes are provided on the cooling grate, and the diameters of the water holes gradually increase from inside to outside along the radial direction of the cooling grate.

[0013] Preferably, a support column is provided in the cold water pool, and a cooling grate is fixed to the upper end of the support column.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model closes and connects the cooling water inlet pipe, the air compressor cooling water jacket, the cooling water outlet pipe to the cooling tower, changing the open cycle into a closed cycle. The circulation of cooling water can be completed by using one cold water pump, which has lower cost and only uses one cold water pump, reduces the hidden dangers of failure, and makes the operation more reliable. Moreover, the return water no longer enters the hot water tank, which is convenient for cold modification and reconstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of an embodiment of the utility model is given.

[0017] Figure 2 It is a schematic diagram of the structure of the cooling grate.

[0018] Reference numerals:

[0019] 1. Nitrogen and hydrogen station 2. Air compressor 3. Cold dryer 4. Cooling water inlet pipe 5. Cold water pump 6. Cold water tank 7. Cooling water outlet pipe 8. Cooling tower 9. Cooling grate 10. Support column 11. Parallel outlet pipeline 12. Nitrogen station return pipeline 21. Air compressor cooling water jacket 31. Cold dryer cooling water jacket 41. First cooling water inlet pipe 41. Second cooling water inlet pipe 43. Third cooling water inlet pipe 91. Water hole. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 The utility model is further described.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 As shown, an air compressor circulating cooling water supply and return system proposed by the utility model includes an air compressor 2, a cold water tank 6, a cold water pump 5 and a cooling tower 8. A cooling water inlet pipe 4 and a cooling water outlet pipe 7 are provided between the cold water tank 6 and the air compressor 2. The cold water pump is arranged on the cooling water inlet pipe 4, the cooling tower 8 is arranged on the cooling water outlet pipe 7, and the cooling tower 8 is arranged higher than the cold water tank 6.

[0023] In this embodiment, a cold dryer 3 is further provided. The compressed air outlet of the air compressor 2 is connected to the inlet of the cold dryer 3 through a pipeline. The cold dryer 3 cools down and removes water from the compressed air output by the compressor 2.

[0024] A sealed air compressor cooling water jacket 21 is provided on the outside of the air compressor 2, a cooling water inlet pipe 4 is sealedly connected to the cooling water inlet of the air compressor cooling water jacket 21, and a cooling water outlet pipe 7 is sealedly connected to the cooling water outlet of the air compressor cooling water jacket 21. A sealed cold dryer cooling water jacket 31 is provided on the outside of the cold dryer 3, a cooling water inlet pipe 4 is sealedly connected to the cooling water inlet of the cold dryer cooling water jacket 31, and a cooling water outlet pipe 7 is sealedly connected to the cooling water outlet of the cold dryer cooling water jacket 31.

[0025] The cooling water outlet of the cold dryer cooling water jacket 31 and the cooling water inlet of the air compressor cooling water jacket 21 are sealed and connected via a parallel outlet pipe 11, and the cooling water outlet pipe 7 is connected to the parallel outlet pipe 11, which is convenient for connection.

[0026] The cooling water inlet pipe 4 is connected to the air compressor cooling water jacket 21 through the first cooling water inlet pipe 41, and the cooling water inlet pipe 4 is connected to the cold dryer cooling water jacket 31 through the second cooling water inlet pipe 42. Valves are respectively provided on the first cooling water inlet pipe 41 and the second cooling water inlet pipe 42, and valves are also respectively provided at the ends of the parallel outlet pipe 11 connecting the air compressor cooling water jacket 21 and the cold dryer cooling water jacket 31.

[0027] A compressor is also provided in the nitrogen and hydrogen station 1, which completes the gas supply task together with the air compressor 2. The original underground water supply pipeline needs to be removed during maintenance. After the transformation, the nitrogen and hydrogen station 1 is connected to the cooling water inlet pipe through the third cooling water inlet pipe, and directly connected to the cold water pool 6 through the nitrogen station return pipe 12. The cooling water is directly sent back to the cold water pool 6 by the pressure of the cold water pump 5, and no longer cooled by the cooling tower 8, so that the cooling tower 8 can fully cool the cooling water of the air compressor 2 and the cold dryer 3, and the cooling water of the compressor in the nitrogen and hydrogen station 1 enters the cooling pool 6 for cooling.

[0028] At least one cooling grate 9 is also provided between the cooling tower 8 and the cold water pool 6. A support column 10 is provided in the cold water pool 6, and the cooling grate 9 is fixed to the upper end of the support column 10, which can further ensure the cooling of the cooling water of the air compressor 2 and the cold dryer 3.

[0029] like Figure 2 As shown, a plurality of water holes 91 are provided on the cooling grate 9, and the diameter of the water holes 91 gradually increases from the inside to the outside along the radial direction of the cooling grate 9. After the cooling water falls on the cooling grate 9, part of the cooling water flows downward through the water holes 91 into the cold water pool 6, and another part of the cooling water flows through the edge of the cooling grate 9 into the cold water pool 6.

[0030] In this embodiment, a separate water supply and return system is built for the air compressor 2 and the cold dryer 3, and the current open cycle is changed to a closed cycle, so that the air compressor 2 can be supplied with water independently, and the return water no longer enters the hot water pool when the open cycle is changed to a closed cycle, which is convenient for cold repair and reconstruction. During the cold repair process, the air compressor 2 does not stop during the removal and re-laying of the underground circulating water pipeline, which reduces power consumption and costs while ensuring safe gas supply, and is easy to promote.

[0031] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An air compressor circulating cooling water supply and return system, Features: The air compressor comprises an air compressor (2), a cold water tank (6), a cold water pump (5) and a cooling tower (8); a cooling water inlet pipe (4) and a cooling water outlet pipe (7) are provided between the cold water tank (6) and the air compressor (2); the cold water pump is provided on the cooling water inlet pipe (4); the cooling tower (8) is provided on the cooling water outlet pipe (7); and the cooling tower (8) is provided higher than the cold water tank (6); A sealed air compressor cooling water jacket (21) is provided on the outside of the air compressor (2); a cooling water inlet pipe (4) is sealedly connected to the cooling water inlet of the air compressor cooling water jacket (21); and a cooling water outlet pipe (7) is sealedly connected to the cooling water outlet of the air compressor cooling water jacket (21).

2. The air compressor circulating cooling water supply and return system according to claim 1, It is characterized in that It also includes a cold dryer (3), wherein the compressed air outlet of the air compressor (2) is connected to the inlet of the cold dryer (3) via a pipeline; A sealed cold dryer cooling water jacket (31) is provided on the outside of the cold dryer (3); a cooling water inlet pipe (4) is sealedly connected to the cooling water inlet of the cold dryer cooling water jacket (31); and a cooling water outlet pipe (7) is sealedly connected to the cooling water outlet of the cold dryer cooling water jacket (31).

3. The air compressor circulating cooling water supply and return system according to claim 2, It is characterized in that The cooling water outlet of the cold dryer cooling water jacket (31) and the cooling water inlet of the air compressor cooling water jacket (21) are sealedly connected via a parallel water outlet pipeline (11), and the cooling water outlet pipe (7) is connected to the parallel water outlet pipeline (11).

4. The air compressor circulating cooling water supply and return system according to claim 2, It is characterized in that The cooling water inlet pipe (4) is connected to the air compressor cooling water jacket (21) via a first cooling water inlet pipe (41), and the cooling water inlet pipe (4) is connected to the cold dryer cooling water jacket (31) via a second cooling water inlet pipe (42). Valves are respectively provided on the first cooling water inlet pipe (41) and the second cooling water inlet pipe (42), and valves are also respectively provided at the ends of the parallel outlet pipe (11) connected to the air compressor cooling water jacket (21) and the cold dryer cooling water jacket (31).

5. The air compressor circulating cooling water supply and return system according to claim 1, It is characterized in that At least one cooling grate (9) is also provided between the cooling tower (8) and the cold water pool (6).

6. The air compressor circulating cooling water supply and return system according to claim 5, It is characterized in that The cooling grate (9) is provided with a plurality of water holes (91), and the diameters of the water holes (91) gradually increase from the inside to the outside along the radial direction of the cooling grate (9).

7. The air compressor circulating cooling water supply and return system according to claim 5, It is characterized in that A support column (10) is provided in the cold water pool (6), and a cooling grate (9) is fixed to the upper end of the support column (10).

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