Water-lubricated single-screw air compressor

Abstract

The present application relates to the technical field of air compressors, and in particular to a water-lubricated single-screw air compressor, comprising a compressor and a cooling separation tank. A first pipe and a second pipe are respectively provided on the compressor, and a first partition plate is provided in the cooling separation tank. The first partition plate can separate the cooling separation tank into a water-cooling zone and an air-water separation zone. Cooling water is stored in the water-cooling zone, and the air-water separation zone is used to separate gas from water. The water-cooling zone is arranged near the bottom of the cooling separation tank, and the first pipe and the second pipe are respectively connected to the water-cooling zone, and the connection point between the first pipe and the water-cooling zone is arranged near the bottom of the water-cooling zone. The present application has the effect of reducing the space occupied by the single-screw air compressor.

Description

Technical Field

[0001] The present application relates to the technical field of air compressors, and in particular to a water-lubricated single-screw air compressor. Background Art

[0002] At present, the single-screw water-lubricated oil-free air compressor is an energy-saving and environmentally friendly product that can provide completely oil-free compressed air. It is suitable for industries or fields with high requirements for compressed air quality, such as environmental protection, electronics, chemicals, new energy, textiles, papermaking, medical care, food, aerospace, military industry, etc.

[0003] Water-lubricated oil-free air compressors are the ultimate choice for air compressor development due to their zero oil emissions, zero environmental pollution, energy conservation, and low maintenance costs. In addition to the main engine (the screw and planetary gear meshing pair), single-screw water-lubricated oil-free air compressors also have crucial components for water-gas separation, water filtration, and air storage.

[0004] Regarding the above-mentioned related technologies: the water-gas separator and the water cooler in the single-screw air compressor are independent of each other, and there are many connecting pipes between them, which makes the single-screw air compressor occupy a large space. Summary of the Invention

[0005] In order to reduce the space occupied by a single-screw air compressor, the present application provides a water-lubricated single-screw air compressor.

[0006] The present application provides a water-lubricated single-screw air compressor that adopts the following technical solution:

[0007] A water-lubricated single-screw air compressor includes a compressor and a cooling separation tank, wherein a first pipe and a second pipe are respectively provided on the compressor, and a first partition plate is provided in the cooling separation tank. The first partition plate can separate the cooling separation tank into a water cooling zone and an air-water separation zone. Cooling water is stored in the water cooling zone, and the air-water separation zone is used to separate gas from water. The water cooling zone is arranged near the bottom of the cooling separation tank, and the first pipe and the second pipe are respectively connected to the water cooling zone, and the connection point between the first pipe and the water cooling zone is arranged near the bottom of the water cooling zone.

[0008] By adopting the above technical solution, the cooling separation tank integrates the cooling function and the air-water separation function, so that the cooling separation tank can not only transport cooling and lubrication water to the compressor, but also separate the air-water mixture transported by the compressor into air and water, which is beneficial for the compressor not to be connected to the air-water separator and the water cooler through pipelines respectively, thereby helping to reduce the space occupied by the single-screw air compressor.

[0009] Optionally, the first partition plate is provided with a one-way valve, and there are at least two one-way valves, which are arranged opposite to each other, one of the one-way valves is used to allow the gas in the water cooling zone to flow into the gas-water separation zone, and the other one-way valve is used to allow the water in the gas-water separation zone to flow into the water cooling zone.

[0010] By adopting the above technical solution, the setting of two one-way valves allows the gas in the cooling zone to flow unidirectionally to the gas-water separation zone, and allows the water in the gas-water separation zone to flow back to the cooling zone, which is beneficial to the separation of gas and water in the gas-water mixture transported by the compressor to the cooling separation tank.

[0011] Optionally, a condensing plate is provided on the inner wall of the cooling separation tank, and the condensing plate is located in the water cooling zone. A driving device is provided in the cooling separation tank, and the driving device includes a driving assembly and a rotating shaft. The driving assembly is used to drive the rotating shaft to rotate, and one end of the rotating shaft is rotatably connected to the top of the cooling separation tank, and the other end of the rotating shaft is arranged near the bottom of the cooling separation tank. A stirring blade is fixedly connected to the rotating shaft, and the stirring blade is located in the water cooling zone.

[0012] By adopting the above technical solution, the driving component can drive the stirring blade to rotate in the water cooling zone through the rotating shaft, which is conducive to allowing the water in the water cooling zone to quickly and fully contact the condensing plate, and further conducive to quickly reducing the temperature of the water in the water cooling zone.

[0013] Optionally, a second partition plate is provided in the cooling separation tank, and the second partition plate is located in the gas-water separation zone. The second partition plate is used to separate the airflow zone from the gas-water separation zone. The driving assembly includes a high-pressure nozzle and a rotating impeller. The high-pressure nozzle is installed on the second partition plate, and the rotating impeller is fixedly connected to the rotating shaft. The high-pressure nozzle is used to spray compressed gas to the rotating impeller.

[0014] By adopting the above technical solution, the high-pressure nozzle can spray the gas in the gas-water separation zone toward the rotating impeller, causing the rotating impeller to rotate. The rotating impeller drives the stirring blades to rotate through the rotating shaft, which is beneficial for the water in the water-cooling zone to be in contact with the condensing sheet more, and to a certain extent improves the utilization rate of the gas in the gas-water separation zone, which is beneficial for quickly reducing the temperature of the water in the water-cooling zone.

[0015] Optionally, a reflux one-way valve is further provided on the second partition plate, and the reflux one-way valve is used to guide the water in the air flow area back into the air-water separation area.

[0016] By adopting the above technical solution and setting up the reflux one-way valve, the water in the air-water separation zone that enters the air-flow zone through the high-pressure nozzle can flow back into the air-water separation zone, thereby helping to reduce the possibility of water accumulation in the air-flow zone, and further reducing to a certain extent the possibility of the accumulated water in the air-flow zone colliding with the rotating impeller when the rotating impeller rotates, causing damage to the rotating impeller.

[0017] Optionally, a sealing sleeve is provided in the water cooling zone, the sealing sleeve is connected to the first pipe, a through groove is opened through the circumferential side wall of the sealing sleeve, a check valve is provided at one end of the first pipe close to the sealing sleeve, the driving device also includes a pumping assembly, the pumping assembly is provided at one end of the rotating shaft close to the bottom of the cooling separation tank, the pumping assembly is slidably inserted in the sealing sleeve at one end away from the rotating shaft, the pumping assembly is used to seal the through groove, and the rotating shaft is used to drive the pumping assembly to slide in the sealing sleeve.

[0018] By adopting the above technical solution, the drive assembly can drive the pumping assembly to slide back and forth within the sealing sleeve via the rotating shaft, thereby facilitating the pumping assembly to deliver cooling water from the water-cooling zone to the compressor through the first pipeline, thereby facilitating cooling of the compressor. In addition, the provision of the check valve helps to reduce the possibility of cooling water in the first pipeline flowing back into the water-cooling zone, thereby preventing cooling water from flowing into the compressor.

[0019] Optionally, the pumping assembly includes a first connecting rod, a second connecting rod and a push block, the first connecting rod is rotatably connected to the rotating shaft, the axis of the first connecting rod is perpendicular to the axis of the rotating shaft, the end of the first connecting rod away from the rotating shaft is rotatably connected to the second connecting rod, the axis of the second connecting rod is parallel to the axis of the first connecting rod, the end of the second connecting rod away from the first connecting rod is rotatably connected to the push block, the end of the push block away from the second connecting rod is slidably inserted in the sealing sleeve, and the push block is used to seal the through groove.

[0020] By adopting the above technical solution, when the driving assembly drives the rotating shaft to rotate, the rotating shaft can drive the first connecting rod to rotate, and the first connecting rod can drive the push block to move back and forth in the sealing sleeve through the second connecting rod, so that when the push block moves in the direction away from the first pipe until it no longer blocks the through groove, the cooling water in the water-cooling area can flow into the sealing sleeve; when the push block moves in the direction close to the first pipe, the cooling water in the sealing sleeve can be squeezed into the first pipe and flow from the first pipe into the compressor, which is beneficial to cooling the compressor.

[0021] Optionally, a third partition plate is provided in the cooling separation tank, the third partition plate is located in the water cooling zone, the third partition plate is located between the second pipe and the first pipe, and there is a gap between the end of the third partition plate away from the second pipe and the inner wall of the cooling separation tank.

[0022] By adopting the above technical solution, the setting of the third partition plate can separate the gas-liquid mixture input into the water-cooling zone by the compressor through the second pipe from the cooling water transported into the compressor, thereby helping to reduce the possibility of the gas-liquid mixture being transported back into the compressor by the pumping component and the auxiliary pump.

[0023] Optionally, an auxiliary pump is further included, which is connected to the first pipeline and the cooling separation tank through pipelines respectively, and the connection point between the auxiliary pump and the cooling separation tank is arranged near the bottom of the water cooling zone.

[0024] By adopting the above technical solution, the auxiliary pump can deliver the cooling water in the water-cooling zone to the compressor, thereby facilitating cooling of the compressor.

[0025] Optionally, the first pipeline is connected to a gas-water separator.

[0026] By adopting the above technical solution, the gas-water separator provided on the first pipeline further reduces the possibility that the gas in the water-cooling zone enters the compressor along the first pipeline.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Through the interaction of the compressor, the cooling separation tank, the first pipeline, the second pipeline, the first partition plate, the one-way valve and the condensing plate, the cooling separation tank can not only deliver cooling and lubricating water to the compressor, but also separate the gas-water mixture delivered by the compressor, thereby helping to reduce the space occupied by the single-screw air compressor;

[0029] 2. Through the cooperation of the second partition plate, the high-pressure nozzle, the rotating impeller, the rotating shaft, the first connecting rod, the second connecting rod, the push block, the sealing sleeve and the first pipe, the cooling water in the water-cooling zone can be transported to the compressor, thereby facilitating cooling of the compressor;

[0030] 3. Through the mutual cooperation of the second partition plate, the high-pressure nozzle, the rotating impeller, the rotating shaft, the stirring blade and the condensing plate, the stirring blade can rotate in the water-cooling zone, which is conducive to using the stirring blade to stir the water in the water-cooling zone, so that the water in the water-cooling zone can quickly and fully contact the condensing plate, which is conducive to quickly reducing the temperature of the water in the water-cooling zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the water-lubricated single-screw air compressor of an embodiment of the present application.

[0032] Figure 2 It is a cross-sectional view of a water-lubricated single-screw air compressor according to an embodiment of the present application.

[0033] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0034] Description of reference numerals:

[0035] 1. Compressor; 11. First pipeline; 111. Solenoid valve; 112. Check valve; 12. Second pipeline; 2. Air filter; 3. Water filter; 4. Cooling separation tank; 41. First partition plate; 411. One-way valve; 42. Water cooling zone; 421. Condensing plate; 43. Air-water separation zone; 44. Second partition plate; 441. Backflow check valve; 45. Air flow zone; 46. Drive device; 461. Drive assembly; 4611. High-pressure nozzle; 4612. Rotating impeller; 462. Rotating shaft; 4621. Stirring blade; 463. Pumping assembly; 4631. First connecting rod; 4632. Second connecting rod; 4633. Push block; 47. Third pipeline; 471. Air-water separator; 48. Third partition plate; 49. Sealing sleeve; 491. Through groove; 5. Auxiliary pump; 6. Air-water separator. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-3 This application is described in further detail.

[0037] The embodiments of the present application disclose a water-lubricated single-screw air compressor.

[0038] Reference Figure 1 The water-lubricated single-screw air compressor includes a compressor 1, an air filter 2, a water filter 3, and a cooling and separating tank 4. The compressor 1, the water filter 3, and the cooling and separating tank 4 are sequentially connected, and the air filter 2 is connected to the compressor 1 through a pipeline, thereby reducing the space occupied by the single-screw air compressor without affecting the normal operation of the compressor 1.

[0039] Reference Figure 1 The compressor 1 is connected to a first pipe 11 and a second pipe 12 , and the first pipe 11 and the second pipe 12 are connected to the cooling separation tank 4 , respectively.

[0040] Reference Figure 1 An electromagnetic valve 111 is provided at one end of the first pipeline 11 close to the compressor 1. The electromagnetic valve 111 is used to control the on-off of the first pipeline 11, thereby facilitating the on-off control of the first pipeline 11 according to the working condition of the compressor 1.

[0041] Reference Figure 1 The water filter 3 is connected to the first pipe 11 and is located between the cooling separation tank 4 and the electromagnetic valve 111. The water filter 3 is used to filter the cooling water transported from the cooling separation tank 4 to the compressor 1.

[0042] Reference Figure 2 A first partition plate 41 is fixedly connected to the cooling and separation tank 4. The circumferential sidewalls of the first partition plate 41 are in contact with the inner wall of the cooling and separation tank 4, so that the first partition plate 41 can separate the interior of the cooling and separation tank 4 into a water-cooling zone 42 and an air-water separation zone 43. The water-cooling zone 42 is located near the bottom of the cooling and separation tank 4 and stores cooling water. The air-water separation zone 43 is used to separate the air-water mixture into air and water.

[0043] Reference Figure 2 The end of the first pipe 11 away from the compressor 1 is connected to the end of the cooling separation tank 4 close to the water cooling zone 42, and the end of the second pipe 12 away from the compressor 1 is also connected to the end of the cooling separation tank 4 close to the water cooling zone 42, and the end of the first pipe 11 away from the compressor 1 is arranged close to the bottom of the water cooling zone 42.

[0044] Reference Figure 2 The setting of the first pipe 11 enables the cooling water in the water-cooling zone 42 to be transported to the compressor 1; the setting of the second pipe 12 enables the gas-water mixture in the compressor 1 to be transported to the water-cooling zone 42, thereby facilitating the normal operation of the single-screw air compressor.

[0045] Reference Figure 2 When the gas-water mixture enters the water-cooling zone 42 through the second pipe 12, the gas-water mixture will first enter the cooling water. The cooling water can intercept a portion of the water in the gas-water mixture, and the gas-water mixture after leaving the cooling water can be gathered at one end of the water-cooling zone 42 near the gas-water separation zone 43.

[0046] Reference Figure 2 A one-way valve 411 is fixedly connected to the first partition plate 41. At least two one-way valves 411 are provided, spaced apart and facing opposite directions. One of the two one-way valves 411 allows the gas-water mixture in the water-cooling zone 42 to flow into the gas-water separation zone 43, while the other one-way valve 411 allows water in the gas-water separation zone 43 to flow into the water-cooling zone 42.

[0047] Reference Figure 2 The first partition plate 41 is tilted in the cooling separation tank 4 to facilitate guiding the water separated in the gas-water separation zone 43, and then facilitate using the one-way valve 411 to guide the water in the gas-water separation zone 43 back to the water cooling zone 42.

[0048] Reference Figure 2 A condensing sheet 421 is fixedly connected to the inner wall of the cooling separation tank 4. A plurality of condensing sheets 421 may be provided, and the plurality of condensing sheets 421 are evenly spaced along the inner wall of the cooling separation tank 4. The plurality of condensing sheets 421 are all located in the water cooling zone 42 and are used to cool the water in the water cooling zone 42.

[0049] Reference Figure 2 A second partition plate 44 is fixedly connected to the cooling separation tank 4, the circumferential side wall of the second partition plate 44 is in contact with the inner wall of the cooling separation tank 4, and the second partition plate 44 is located in the gas-water separation zone 43, so that the second partition plate 44 can separate the airflow zone 45 from the gas-water separation zone 43.

[0050] Reference Figure 2 A driving device 46 is provided in the cooling separation tank 4 . The driving device 46 can be provided in various ways. In this embodiment, the driving device 46 includes a driving component 461 , a rotating shaft 462 and a pumping component 463 .

[0051] Reference Figure 2 One end of the rotating shaft 462 is rotatably connected to the top of the cooling separation tank 4, and the other end of the rotating shaft 462 passes through the first partition plate 41 and the second partition plate 44 in sequence, and the end of the rotating shaft 462 passing through the first partition plate 41 can extend to a position close to the bottom of the cooling separation tank 4.

[0052] Reference Figure 2 The axis of the rotating shaft 462 coincides with the axis of the cooling separation tank 4, and the rotating shaft 462 is rotatably connected to the first partition plate 41 and the second partition plate 44 respectively. A stirring blade 4621 is fixedly connected to the rotating shaft 462. The stirring blade 4621 is located in the water cooling zone 42 and can be immersed in the cooling water.

[0053] Reference Figure 2 The drive assembly 461 can be configured in various ways. In this embodiment, the drive assembly 461 includes a high-pressure nozzle 4611 and a rotating impeller 4612. The high-pressure nozzle 4611 is fixedly mounted on the second partition plate 44 and is capable of spraying the compressed gas separated in the gas-water separation zone 43 into the gas flow zone 45.

[0054] Reference Figure 2 The rotating impeller 4612 is fixedly mounted on the rotating shaft 462 and is located within the airflow region 45. The rotating impeller 4612 corresponds to the high-pressure nozzle 4611 near its circumference, so that the high-pressure nozzle 4611 can spray compressed gas toward the rotating impeller 4612 and drive the rotating impeller 4612 to rotate.

[0055] Reference Figure 2 When the high-pressure nozzle 4611 sprays the compressed gas separated in the gas-water separation zone 43 toward the rotating impeller 4612, the rotating impeller 4612 can drive the rotating shaft 462 to rotate, and the rotating shaft 462 drives the stirring blade 4621 to rotate, so that the stirring blade 4621 can stir the water in the water-cooling zone 42, so that the water in the water-cooling zone 42 can more fully contact the condensing sheet 421, which is conducive to achieving the purpose of quickly reducing the temperature of the water in the water-cooling zone 42.

[0056] Reference Figure 2 A reflux check valve 441 is also fixedly connected to the second partition plate 44. The reflux check valve 441 is used to guide the water entering the airflow area 45 through the high-pressure nozzle 4611 back to the air-water separation area 43, thereby helping to reduce the possibility of water accumulation in the airflow area 45, and further helping to reduce the possibility of the rotating impeller 4612 being damaged due to the collision between the rotating impeller 4612 and the rotating impeller 4612 when the rotating impeller 4612 rotates.

[0057] Reference Figure 2 The second partition plate 44 can be tilted in the cooling separation tank 4, and the reflux check valve 441 is set close to the first partition plate 41, so that the water in the airflow zone 45 can be guided to the reflux check valve 441, and then the water in the airflow zone 45 can be guided back to the air-water separation zone 43 through the reflux check valve 441, and then guided back to the water cooling zone 42 through the check valve 411 on the first partition plate 41.

[0058] Reference Figure 2 The cooling and separation tank 4 is connected to a third pipe 47 , and the third pipe 47 is connected to the airflow area 45 , so that the gas in the airflow area 45 can flow out of the cooling and separation tank 4 through the third pipe 47 .

[0059] Reference Figure 2 The third pipe 47 is connected to a gas-water fine separator 471 , which can perform fine separation on the gas discharged from the cooling separation tank 4 , thereby helping to improve the purity of the compressed gas discharged from the cooling separation tank 4 .

[0060] Reference Figure 2 A third partition plate 48 is fixedly connected to the cooling and separation tank 4. The third partition plate 48 is located in the water-cooling zone 42 and between the first pipe 11 and the second pipe 12. A gap is formed between the end of the third partition plate 48 away from the first pipe 11 and the inner wall of the cooling and separation tank 4, thereby facilitating the flow of cooling water in the water-cooling zone 42 through the gap.

[0061] Reference Figure 2The setting of the third partition plate 48 can separate the cooling water and the gas-water mixture in the water-cooling zone 42, so that the gas-water mixture flowing into the water-cooling zone 42 through the second pipe 12 is not easy to flow back into the compressor 1 through the first pipe 11.

[0062] Reference Figure 2 The end of the rotating shaft 462 away from the rotating impeller 4612 passes through the third partition plate 48, and the rotating shaft 462 is rotatably connected to the third partition plate 48. Therefore, the first partition plate 41, the second partition plate 44, and the third partition plate 48 can respectively support the rotating shaft 462, thereby helping to reduce the possibility of shaking of the rotating shaft 462 during rotation.

[0063] Reference Figure 2 and Figure 3 A sealing sleeve 49 is also fixedly connected to the cooling and separation tank 4. The sealing sleeve 49 is located at the end of the third partition plate 48 away from the stirring blade 4621, and the sealing sleeve 49 can communicate with the first pipe 11. The end of the sealing sleeve 49 away from the first pipe 11 is open, and a through groove 491 is formed on the circumferential side wall of the sealing sleeve 49.

[0064] Reference Figure 2 The pumping assembly 463 can be configured in various ways. In this embodiment, the pumping assembly 463 includes a first connecting rod 4631, a second connecting rod 4632, and a push block 4633. One end of the rotating shaft 462 passes through the third partition plate 48 and is rotatably connected to the first connecting rod 4631. The axis of the first connecting rod 4631 is perpendicular to the axis of the rotating shaft 462, and the first connecting rod 4631 is rotatable about the axis of the rotating shaft 462.

[0065] Reference Figure 2 One end of the first connecting rod 4631 away from the rotating shaft 462 is rotatably connected to the second connecting rod 4632 , and the axis of the second connecting rod 4632 is parallel to the axis of the first connecting rod 4631 .

[0066] Reference Figure 2 and Figure 3 The push block 4633 is slidably inserted into the sealing sleeve 49, the circumferential side wall of the push block 4633 fits with the inner wall of the sealing sleeve 49, and the end of the push block 4633 away from the first pipe 11 is rotatably connected to the end of the second connecting rod 4632 away from the first connecting rod 4631, and the push block 4633 can block the through groove 491.

[0067] Reference Figure 2 and Figure 3When the rotating impeller 4612 drives the rotating shaft 462 to rotate, the rotation of the rotating shaft 462 can drive the first connecting rod 4631 to rotate around the axis of the rotating shaft 462, the first connecting rod 4631 can drive the second connecting rod 4632 to rotate, and the second connecting rod 4632 can drive the push block 4633 to slide back and forth in the sealing sleeve 49.

[0068] Reference Figure 2 and Figure 3 When the push block 4633 slides in the sealing sleeve 49 in the direction away from the first pipe 11 until it no longer blocks the through groove 491, the cooling water in the water-cooling zone 42 can flow into the sealing sleeve 49; when the push block 4633 moves in the direction close to the first pipe 11, the cooling water in the sealing sleeve 49 can be squeezed into the first pipe 11 and flow into the compressor 1 through the first pipe 11, thereby facilitating the purpose of cooling the compressor 1.

[0069] Reference Figure 2 and Figure 3 A check valve 112 is fixedly connected to one end of the first pipe 11 close to the cooling separation tank 4. The setting of the check valve 112 makes it difficult for the water in the first pipe 11 to flow back into the water cooling zone 42, thereby facilitating the push block 4633 to squeeze the cooling water into the first pipe 11 and allow the cooling water to flow into the compressor 1 through the first pipe 11.

[0070] Reference Figure 2 and Figure 3 The water-lubricated single-screw air compressor further includes an auxiliary pump 5 and an air-water separator 6. The auxiliary pump 5 is connected to the first pipeline 11 and the cooling separation tank 4 through pipelines, and the connection position between the auxiliary pump 5 and the cooling separation tank 4 is located between the sealing sleeve 49 and the third partition plate 48.

[0071] Reference Figure 2 When the amount of cooling water delivered by the pumping component 463 to the compressor 1 is insufficient, the auxiliary pump 5 is started. The auxiliary pump 5 can pump the cooling water in the water-cooling zone 42 into the first pipe 11 and deliver the cooling water to the compressor 1 through the first pipe 11, thereby reducing the possibility that the amount of cooling water in the compressor 1 is insufficient, resulting in the cooling water being difficult to fully cool the compressor 1, thereby facilitating sufficient cooling of the compressor 1.

[0072] Reference Figure 1 The gas-water separator 6 is connected to the first pipe 11, and the gas-water separator 6 is located between the water filter 3 and the cooling separation tank 4, so that the gas-water separator 6 can separate the gas carried in the cooling water in the first pipe 11, which is beneficial to reduce the possibility of the gas-water mixture input into the cooling separation tank 4 by the compressor 1 flowing back into the compressor 1 again.

[0073] The implementation principle of a water-lubricated single-screw air compressor in an embodiment of the present application is as follows: when the single-screw air compressor is needed to compress air, the electromagnetic valve 111 is first opened to connect the first pipe 11 .

[0074] The single-screw air compressor is then started to draw in outside air, which then passes through air filter 2 and enters compressor 1 for compression. The compressed gas is then transported through second pipe 12 to water cooling zone 42, where it is cooled. The cooled compressed gas passes through one-way valve 411 on first partition plate 41 and enters gas-water separation zone 43 for gas-water separation.

[0075] Next, compressed gas is sprayed into the airflow zone 45 through the high-pressure nozzle 4611 on the second partition plate 44. Simultaneously, the high-pressure nozzle 4611 sprays the compressed gas toward the rotating impeller 4612, causing it to rotate. This in turn drives the rotating shaft 462, which in turn drives the stirring blades 4621 and the first connecting rod 4631. The first connecting rod 4631, through the second connecting rod 4632, drives the push block 4633 to slide back and forth within the sealing sleeve 49, allowing the push block 4633 to squeeze the cooling water on the side of the third partition plate 48 facing away from the first partition plate 41 into the first pipe 11.

[0076] Finally, the cooling water flows in the first pipe 11 and passes through the air-water separator 6 , the water filter 3 and the electromagnetic valve 111 in sequence before entering the compressor 1 , thereby achieving the purpose of cooling the compressor 1 .

[0077] The water-lubricated single-screw air compressor of the present application, through the mutual cooperation of the compressor 1, the cooling separation tank 4, the first pipe 11, the second pipe 12, the first partition plate 41, the one-way valve 411 and the condensing plate 421, enables the cooling separation tank 4 to integrate the functions of the water cooler and the gas-liquid separator, thereby, to a certain extent, making it unnecessary for the compressor 1 to be connected to the water cooler and the gas-liquid separator respectively through pipes, thereby helping to achieve the purpose of reducing the space occupied by the single-screw air compressor.

[0078] In addition, through the mutual cooperation of the second partition plate 44, the high-pressure nozzle 4611, the rotating impeller 4612, the rotating shaft 462, the first connecting rod 4631, the second connecting rod 4632, the push block 4633 and the sealing sleeve 49, the utilization rate of compressed air is improved to a certain extent, which is beneficial to saving the operating cost of the single-screw air compressor.

[0079] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A water-lubricated single-screw air compressor, characterized in that: The invention comprises a compressor (1) and a cooling separation tank (4), wherein the compressor (1) is provided with a first pipe (11) and a second pipe (12), and the cooling separation tank (4) is provided with a first partition plate (41). The first partition plate (41) can separate the cooling separation tank (4) into a water cooling zone (42) and a gas-water separation zone (43). Cooling water is stored in the water cooling zone (42). The gas-water separation zone (43) is used to separate gas from water. The water cooling zone (42) is arranged near the bottom of the cooling separation tank (4), and the first pipe (11) and the second pipe (12) are respectively connected to the water cooling zone (42). The connection point between the first pipe (11) and the water cooling zone (42) is arranged near the bottom of the water cooling zone (42). A condensing sheet (421) is provided on the inner wall of the cooling separation tank (4), and the condensing sheet (421) is located in the water cooling zone (42). A driving device (46) is provided in the cooling separation tank (4), and the driving device (46) includes a driving component (461) and a rotating shaft (462). The driving component (461) is used to drive the rotating shaft (462) to rotate, and one end of the rotating shaft (462) is rotatably connected to the top of the cooling separation tank (4), and the other end of the rotating shaft (462) is arranged near the bottom of the cooling separation tank (4). A stirring blade (4621) is fixedly connected to the rotating shaft (462), and the stirring blade (4621) is located in the water cooling zone (42); A sealing sleeve (49) is provided in the water cooling zone (42), the sealing sleeve (49) is communicated with the first pipe (11), a through groove (491) is provided on the circumferential side wall of the sealing sleeve (49), a check valve (112) is provided at one end of the first pipe (11) close to the sealing sleeve (49), the driving device (46) further comprises a pumping assembly (463), the pumping assembly (463) is provided at one end of the rotating shaft (462) close to the bottom of the cooling separation tank (4), the pumping assembly (463) is slidably inserted into the sealing sleeve (49) at one end away from the rotating shaft (462), the pumping assembly (463) is used to block the through groove (491), and the rotating shaft (462) is used to drive the pumping assembly (463) to slide in the sealing sleeve (49); The pumping assembly (463) includes a first connecting rod (4631), a second connecting rod (4632) and a push block (4633), wherein the first connecting rod (4631) is rotatably connected to the rotating shaft (462), the axis of the first connecting rod (4631) is perpendicular to the axis of the rotating shaft (462), the end of the first connecting rod (4631) away from the rotating shaft (462) is rotatably connected to the second connecting rod (4632), the axis of the second connecting rod (4632) is parallel to the axis of the first connecting rod (4631), the end of the second connecting rod (4632) away from the first connecting rod (4631) is rotatably connected to the push block (4633), the end of the push block (4633) away from the second connecting rod (4632) is slidably inserted into the sealing sleeve (49), and the push block (4633) is used to block the through groove (491).

2. The water-lubricated single-screw air compressor according to claim 1, characterized in that: The first partition plate (41) is provided with a one-way valve (411), and at least two one-way valves (411) are provided. The two one-way valves (411) are arranged opposite to each other, and one of the one-way valves (411) is used to allow the gas in the water cooling zone (42) to flow into the gas-water separation zone (43), and the other one-way valve (411) is used to allow the water in the gas-water separation zone (43) to flow into the water cooling zone (42).

3. The water-lubricated single-screw air compressor according to claim 1, characterized in that: A second partition plate (44) is provided in the cooling separation tank (4), the second partition plate (44) is located in the gas-water separation zone (43), and the second partition plate (44) is used to separate the airflow zone (45) from the gas-water separation zone (43). The driving component (461) includes a high-pressure nozzle (4611) and a rotating impeller (4612), the high-pressure nozzle (4611) is installed on the second partition plate (44), the rotating impeller (4612) is fixedly connected to the rotating shaft (462), and the high-pressure nozzle (4611) is used to spray compressed gas to the rotating impeller (4612).

4. The water-lubricated single-screw air compressor according to claim 3, characterized in that: A reflux check valve (441) is also provided on the second partition plate (44), and the reflux check valve (441) is used to guide the water in the air flow area (45) back into the air-water separation area (43).

5. The water-lubricated single-screw air compressor according to claim 1, characterized in that: A third partition plate (48) is provided in the cooling separation tank (4), the third partition plate (48) is located in the water cooling zone (42), the third partition plate (48) is located between the second pipe (12) and the first pipe (11), and a gap exists between an end of the third partition plate (48) away from the second pipe (12) and the inner wall of the cooling separation tank (4).

6. The water-lubricated single-screw air compressor according to claim 1, characterized in that: It also includes an auxiliary pump (5), which is connected to the first pipeline (11) and the cooling separation tank (4) through pipelines, and the connection point between the auxiliary pump (5) and the cooling separation tank (4) is arranged near the bottom of the water cooling zone (42).

7. The water-lubricated single-screw air compressor according to claim 1, characterized in that: The first pipeline (11) is connected to a gas-water separator (6).

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