Oil-gas separation device for compressor

Abstract

The oil-gas separation device comprises a box body, the top of the box body is in threaded connection with a top cover, the bottom of the box body is fixedly connected with a bottom box, the outer wall of the bottom box is fixedly connected with an air inlet pipe, the outer wall of the air inlet pipe is fixedly connected with an air inlet valve, and the inner wall of the bottom box is provided with a filtering pretreatment mechanism. And a rotary air inlet mechanism is arranged at the bottom of the inner wall of the box body. Solid impurities in an oil-gas mixture are intercepted through a filtering plate of the filtering pretreatment mechanism, a motor of the rotating gas inlet mechanism drives a rotating shaft to rotate, gas is guided into a centrifugal box through a gas guide hole, the centrifugal treatment mechanism enables oil drops to be separated from the gas through centrifugal force, and the gas temperature is reduced in cooperation with a refrigeration piece of the cooling treatment mechanism; the oil vapor is condensed into a liquid state, and tiny oil drops are further adsorbed through a filtering medium of the filtering treatment mechanism. The multi-stage separation design can reduce the oil content of the air outlet, and the efficiency is improved compared with that of traditional single-stage separation.

Description

Technical Field

[0001] This utility model relates to the field of oil-gas separation technology, and in particular to an oil-gas separation device for compressors. Background Technology

[0002] An air compressor is a machine that pressurizes and outputs gas, widely used in various fields such as automobiles, medical devices, and electrical appliances. During the air compression process, compressed air needs to be sprayed with oil. Oil spraying increases the equipment's sealing and lubrication, and also reduces the temperature during gas compression. However, the oil and gas in the compressed gas need to be separated before output. Existing oil-gas separation devices often fail to separate oil and gas completely, resulting in oil and gas mixed in with the air. This increases lubricating oil consumption, and the presence of gas in the lubricating oil reduces its lubricating effect, increases equipment wear, and raises maintenance costs.

[0003] For example, the utility model patent with authorization announcement number CN216171147U discloses an oil-gas separation device for an air compressor, which includes a main body, a sealing cover on the top of the main body, a diffuser assembly on one side of the main body with an air inlet, and the other end of the diffuser assembly extending into the inner cavity of the main body. An oil drain port is provided on one side of the bottom of the main body, and a condenser plate is provided on the inner cavity sidewall of the main body. Heat dissipation fins are provided on the surface of the main body. However, the oil-gas separation mechanism is simple and it is difficult to guarantee the oil-gas separation effect. Therefore, an oil-gas separation device for a compressor is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil-gas separation device for compressors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An oil-gas separator for a compressor includes a housing, a top cover threadedly connected to the top of the housing, a bottom box fixedly connected to the bottom of the housing, an air inlet pipe fixedly connected to the outer wall of the bottom box, an air inlet valve fixedly connected to the outer wall of the air inlet pipe, a filter pretreatment mechanism provided on the inner wall of the bottom box, a rotating air inlet mechanism provided at the bottom of the inner wall of the housing, a centrifugal treatment mechanism provided on the inner wall of the housing, a cooling treatment mechanism provided on top of the centrifugal treatment mechanism, a filter treatment mechanism provided on top of the cooling treatment mechanism, and an air outlet pipe fixedly connected to the top of the top cover.

[0007] Preferably, the filtration pretreatment mechanism includes a filter plate and a maintenance plate, the filter plate is fixedly connected to the inner wall of the bottom box, and the maintenance plate is rotatably connected to one side of the bottom box.

[0008] Preferably, the rotating air intake mechanism includes a motor and a rotating shaft. The motor and the base box are fixedly connected. The bottom of the rotating shaft is fixedly connected to the motor. The rotating shaft is hollow and has an air guide hole on its outer wall, which is located inside the base box.

[0009] Preferably, the centrifugation processing mechanism includes a centrifuge box and a through hole, the bottom of the centrifuge box and the rotating shaft are fixedly connected, the through hole is provided with the outer wall of the centrifuge box, and the top of the rotating shaft is located inside the centrifuge box.

[0010] Preferably, the cooling mechanism includes a liquid collection tank and a heat exchange tank. The heat exchange tank is fixedly connected to the inner wall of the tank, and the liquid collection tank is fixedly connected to the outer wall of the tank. A first liquid guide pipe is fixedly connected to one end of the heat exchange tank, and a liquid pump is fixedly connected to the other end of the first liquid guide pipe. The liquid pump is fixedly connected to the inner wall of the liquid collection tank. An inlet pipe is fixedly connected to the top of the liquid collection tank. A second liquid guide pipe is fixedly connected to the other end of the heat exchange tank, and the other end of the second liquid guide pipe is fixedly connected to the liquid collection tank. A cooling plate is fixedly connected to the inner wall of the liquid collection tank, and a heat dissipation device is fixedly connected to the bottom of the cooling plate.

[0011] Preferably, the filtration mechanism includes a treatment box and a cover plate. The treatment box and the inner wall of the box are fixedly connected. The cover plate is located at the top of the box. Air holes are provided at the bottom of the box and the outer wall of the cover plate. The inner wall of the treatment box is provided with a filter medium. A first scraper is provided at the bottom of the treatment box. The first scraper is in natural contact with the outer wall of the bottom of the treatment box.

[0012] Preferably, a second scraper is provided at the bottom of the inner wall of the box, the second scraper is fixedly connected to the rotating shaft, and an oil drain pipe is fixedly connected to the outer wall of the bottom of the box.

[0013] The beneficial effects of this utility model are as follows:

[0014] The pre-treatment filter first intercepts solid impurities in the oil-gas mixture. The motor of the intake mechanism drives the rotating shaft, guiding the gas through the air inlet into the centrifuge chamber. The centrifugal treatment mechanism uses centrifugal force to separate oil droplets from the gas. In conjunction with the cooling mechanism, the cooling plates lower the gas temperature, causing the oil vapor to condense into a liquid state. The gas then passes through the filter media of the filtration mechanism for further adsorption of tiny oil droplets. This multi-stage separation design reduces the oil content at the outlet and improves efficiency compared to traditional single-stage separation.

[0015] By setting a second scraper to rotate with the rotating shaft, the accumulated oil at the bottom of the tank is scraped off and discharged through the oil drain pipe. The first scraper cleans the oil stains at the bottom of the tank to prevent impurities from clogging the filter medium. The liquid pump of the cooling treatment mechanism drives the coolant to circulate between the heat exchange tank and the liquid collection tank. The cooling plate continuously cools down the oil-gas mixture, reducing the temperature of the separation element caused by high temperature and extending the equipment maintenance cycle. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the main structure of an oil-gas separation device for a compressor proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom main structure of an oil-gas separator for a compressor according to the present invention;

[0018] Figure 3 This is a side sectional view of an oil-gas separation device for a compressor proposed in this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of an oil-gas separation device for a compressor proposed in this utility model.

[0020] In the diagram: 1. Box body, 2. Liquid collection tank, 3. Air outlet pipe, 4. Top cover, 5. Motor, 6. Bottom box, 7. Oil drain pipe, 8. Air inlet valve, 9. Air inlet pipe, 10. Rotating shaft, 11. Centrifuge box, 12. Through hole, 13. Liquid pump, 14. First liquid guide pipe, 15. Liquid inlet pipe, 16. First scraper, 17. Vertical rod, 18. Cover plate, 19. Processing box, 20. Heat exchange box, 21. Second liquid guide pipe, 22. Refrigeration element, 23. Heat dissipation equipment, 24. Second scraper, 25. Air guide hole, 26. Inspection plate, 27. Filter plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 An oil-gas separation device for a compressor includes a housing 1, a top cover 4 threadedly connected to the top of the housing 1, a bottom box 6 fixedly connected to the bottom of the housing 1, an air inlet pipe 9 fixedly connected to the outer wall of the bottom box 6, an air inlet valve 8 fixedly connected to the outer wall of the air inlet pipe 9, a filter pretreatment mechanism on the inner wall of the bottom box 6, a rotating air inlet mechanism at the bottom of the inner wall of the housing 1, a centrifugal treatment mechanism on the inner wall of the housing 1, a cooling treatment mechanism on the top of the centrifugal treatment mechanism, a filter treatment mechanism on the top of the cooling treatment mechanism, and an air outlet pipe 3 fixedly connected to the top of the top cover 4. The filter plate 27 of the filter pretreatment mechanism first intercepts solid impurities in the oil-gas mixture. The motor 5 of the rotating air inlet mechanism drives the rotating shaft 10 to rotate, and the gas is introduced into the centrifugal box 11 through the air guide hole 25. The centrifugal treatment mechanism uses centrifugal force to separate oil droplets from gas. The cooling plate 22 of the cooling treatment mechanism lowers the gas temperature, causing the oil vapor to condense into liquid. The gas is then further adsorbed by the filter medium of the filter treatment mechanism. This multi-stage separation design can reduce the oil content at the outlet and improve efficiency compared to traditional single-stage separation.

[0023] In this utility model, the filtration pretreatment mechanism includes a filter plate 27 and a maintenance plate 26. The filter plate 27 is fixedly connected to the inner wall of the bottom box 6, and the maintenance plate 26 is rotatably connected to one side of the bottom box 6. The filter plate 27 of the filtration pretreatment mechanism first intercepts solid impurities in the oil-gas mixture.

[0024] The rotating air intake mechanism includes a motor 5 and a rotating shaft 10. The motor 5 is fixedly connected to the bottom box 6. The bottom of the rotating shaft 10 is fixedly connected to the motor 5. The rotating shaft 10 is hollow. An air guide hole 25 is opened on the outer wall of the rotating shaft 10. The air guide hole 25 is located inside the bottom box 6. The centrifugal processing mechanism includes a centrifuge box 11 and a through hole 12. The bottom of the centrifuge box 11 is fixedly connected to the rotating shaft 10. The through hole 12 is opened on the outer wall of the centrifuge box 11. The top of the rotating shaft 10 is located inside the centrifuge box 11. The motor 5 of the rotating air intake mechanism drives the rotating shaft 10 to rotate. Gas is introduced into the centrifuge box 11 through the air guide hole 25. The centrifugal processing mechanism uses centrifugal force to separate oil droplets from gas.

[0025] The cooling mechanism includes a liquid collection tank 2 and a heat exchange tank 20. The heat exchange tank 20 is fixedly connected to the inner wall of the tank body 1, and the liquid collection tank 2 is fixedly connected to the outer wall of the tank body 1. A first liquid guide pipe 14 is fixedly connected to one end of the heat exchange tank 20, and a liquid pump 13 is fixedly connected to the other end of the first liquid guide pipe 14. The liquid pump 13 is fixedly connected to the inner wall of the liquid collection tank 2. An inlet pipe 15 is fixedly connected to the top of the liquid collection tank 2, and a second liquid guide pipe 21 is fixedly connected to the other end of the heat exchange tank 20. The other end of the second liquid guide pipe 21 is fixedly connected to the liquid collection tank 2. A cooling plate 22 is fixedly connected to the inner wall of the liquid collection tank 2, and a heat dissipation device 23 is fixedly connected to the bottom of the cooling plate 22. The liquid pump 13 of the cooling mechanism drives the coolant to circulate between the heat exchange tank 20 and the liquid collection tank 2. The cooling plate 22 continuously cools down the mixture, reducing the temperature of the oil-gas mixture, reducing the wear of the separation element due to high temperature, and extending the equipment maintenance cycle.

[0026] The filtration mechanism includes a treatment box 19 and a cover plate 18. The treatment box 19 is fixedly connected to the inner wall of the box body 1. The cover plate 18 is located at the top of the box body 1. Air holes are provided at the bottom of the box body 1 and on the outer wall of the cover plate 18. The inner wall of the treatment box 19 is provided with a filter medium. The bottom of the treatment box 19 is provided with a first scraper 16. The first scraper 16 is in natural contact with the bottom outer wall of the treatment box 19. The filter medium of the filtration mechanism further adsorbs tiny oil droplets.

[0027] A second scraper 24 is provided at the bottom of the inner wall of the housing 1. The second scraper 24 is fixedly connected to the rotating shaft 10. An oil drain pipe 7 is fixedly connected to the outer wall of the bottom of the housing 1. By setting the second scraper 24 to rotate with the rotating shaft 10, the accumulated oil at the bottom of the housing 1 is scraped off and discharged through the oil drain pipe 7.

[0028] Working Principle: In the idle period of this device, all the components mentioned above, and their corresponding structural parts, are connected. The specific connection methods should refer to the working principle described below, and the connection between each component should be completed in the order of operation. The detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and will not elaborate further. When using this device, the air inlet valve 8 is opened, and the oil-gas mixture enters the bottom box 6 through the air inlet pipe 9. After the filter plate 27 pre-treats impurities, the motor 5 drives the rotating shaft 10 to rotate, and the gas enters the centrifuge box 11 through the air guide hole 25. Centrifugal force causes oil droplets to be thrown against the box wall and fall to the bottom of the box through the through hole 12. In the cooling treatment mechanism, the liquid pump 13 pumps the coolant in the liquid collection tank 2 into the heat exchange box 20 through the first liquid guide pipe 14. The cooling plate 22 cools the coolant, and the gas temperature is reduced by circulation, promoting the condensation of oil vapor. The cooled gas enters the treatment box 19, the filter medium adsorbs the remaining oil droplets, and the purified gas is discharged from the air outlet pipe 3. The rotating shaft 10 drives the second scraper 24 to scrape off the oil accumulated at the bottom of the tank, and the first scraper 16 cleans the oil stains on the surface of the filter medium. The separated lubricating oil is recovered through the oil drain pipe 7, realizing efficient oil-gas separation and automatic cleaning.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An oil-gas separator for a compressor, comprising a housing (1), wherein a top cover (4) is threadedly connected to the top of the housing (1), characterized in that, The bottom of the box (1) is fixedly connected to a bottom box (6), the outer wall of the bottom box (6) is fixedly connected to an air inlet pipe (9), the outer wall of the air inlet pipe (9) is fixedly connected to an air inlet valve (8), the inner wall of the bottom box (6) is provided with a filter pretreatment mechanism, the bottom of the inner wall of the box (1) is provided with a rotating air inlet mechanism, the inner wall of the box (1) is provided with a centrifugal treatment mechanism, the top of the centrifugal treatment mechanism is provided with a cooling treatment mechanism, the top of the cooling treatment mechanism is provided with a filter treatment mechanism, and the top of the top cover (4) is fixedly connected to an air outlet pipe (3).

2. The oil-gas separator for a compressor according to claim 1, characterized in that, The pre-treatment filter includes a filter plate (27) and a maintenance plate (26). The filter plate (27) is fixedly connected to the inner wall of the bottom box (6), and the maintenance plate (26) is rotatably connected to one side of the bottom box (6).

3. The oil-gas separator for a compressor according to claim 1, characterized in that, The rotating air intake mechanism includes a motor (5) and a rotating shaft (10). The motor (5) and the base box (6) are fixedly connected. The bottom of the rotating shaft (10) is fixedly connected to the motor (5). The rotating shaft (10) is hollow. An air guide hole (25) is opened on the outer wall of the rotating shaft (10). The air guide hole (25) is located inside the base box (6).

4. The oil-gas separator for a compressor according to claim 3, characterized in that, The centrifugation processing mechanism includes a centrifuge box (11) and a through hole (12). The bottom of the centrifuge box (11) and the rotating shaft (10) are fixedly connected. The through hole (12) is opened on the outer wall of the centrifuge box (11), and the top of the rotating shaft (10) is located inside the centrifuge box (11).

5. The oil-gas separator for a compressor according to claim 4, characterized in that, The cooling mechanism includes a liquid collection tank (2) and a heat exchange tank (20). The heat exchange tank (20) is fixedly connected to the inner wall of the box body (1), and the liquid collection tank (2) is fixedly connected to the outer wall of the box body (1). A first liquid guide pipe (14) is fixedly connected to one end of the heat exchange tank (20), and a liquid pump (13) is fixedly connected to the other end of the first liquid guide pipe (14). The liquid pump (13) is fixedly connected to the inner wall of the liquid collection tank (2), and an inlet pipe (15) is fixedly connected to the top of the liquid collection tank (2). A second liquid guide pipe (21) is fixedly connected to the other end of the heat exchange tank (20), and the other end of the second liquid guide pipe (21) is fixedly connected to the liquid collection tank (2). A cooling plate (22) is fixedly connected to the inner wall of the liquid collection tank (2), and a heat dissipation device (23) is fixedly connected to the bottom of the cooling plate (22).

6. The oil-gas separator for a compressor according to claim 5, characterized in that, The filtration mechanism includes a processing box (19) and a cover plate (18). The processing box (19) is fixedly connected to the inner wall of the box body (1). The cover plate (18) is located at the top of the box body (1). Air holes are provided at the bottom of the box body (1) and the outer wall of the cover plate (18). The inner wall of the processing box (19) is provided with a filter medium. The bottom of the processing box (19) is provided with a first scraper (16). The first scraper (16) is in natural contact with the bottom outer wall of the processing box (19).

7. The oil-gas separator for a compressor according to claim 6, characterized in that, The bottom of the inner wall of the box (1) is provided with a second scraper (24), the second scraper (24) and the rotating shaft (10) are fixedly connected, and the bottom outer wall of the box (1) is fixedly connected with an oil drain pipe (7).

Images