Gas-liquid separation device and air compressor
By incorporating a three-stage cooler and separator into the air compressor, and employing a design that prioritizes cooling before separation, the problem of poor gas-liquid separation in air compressors is solved. This achieves efficient gas-liquid separation and cooling, extends equipment life, and reduces maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU QIAN ZHONGZHI CONSTR MANAGEMENT CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-12
AI Technical Summary
During operation, the gas temperature of existing air compressors rises, affecting the gas-liquid separation effect. Furthermore, the lack of effective cooling and separation methods causes oil and water droplets to adhere to the air valves, affecting their lifespan and lubrication performance.
采用三级冷却器和分离器结构,先冷却后分离的设计,通过水冷降温并在每一级进行气液分离,确保气体分子冷却后再进行分离,结合三级分离器提高分离效果。
It effectively improves gas-liquid separation, extends the service life of air compressors, reduces noise and maintenance costs, and significantly enhances separation performance.
Smart Images

Figure CN224221086U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compressor technology, and in particular to a gas-liquid separation device and an air compressor. Background Technology
[0002] The working principle of an air compressor is to use an electric motor to drive the crankshaft of the air compressor to rotate, and the piston does work to draw in air and gradually compress it, and finally release the compressed air. It is mainly used in many fields such as industrial production, manufacturing, automobile repair and maintenance, construction sites, medical equipment, food and beverage industry, aerospace, and agriculture.
[0003] The gas discharged from the air compressor cylinder often contains oil and water vapor, which condenses into droplets after intermediate cooling. If the oil and water droplets in the condensate are not separated and enter the next stage cylinder with the gas, they will adhere to the valves, causing them to malfunction and shorten their lifespan; water droplets will adhere to the cylinder walls, deteriorating the lubrication of the cylinder walls. Therefore, a water-gas separator is needed, such as the air-water separator for air compressors disclosed in patent publication number CN117212108A, which achieves water-gas separation by setting up a drying device, a water suction device, a shielding device, and a guiding device.
[0004] During operation, an air compressor compresses air, reducing its volume. This process reduces the distance between gas molecules, increasing collision frequency and energy, which in turn raises the temperature and hinders gas-liquid separation. Currently available air compressor water-air separators rarely have cooling capabilities. Utility Model Content
[0005] The purpose of this invention is to provide a gas-liquid separation device and air compressor that can improve the gas-liquid separation effect.
[0006] The technical solution of this utility model is: a gas-liquid separation device, including a first pipe assembly, a second pipe assembly and a third pipe assembly. The first pipe assembly includes a first cooler and a first separator. One end of the first cooler is provided with a first interface for connecting to the first cylinder of an air compressor. One end of the first separator is provided with a second interface for connecting to the second cylinder of an air compressor. The other end of the first cooler and the other end of the first separator are interconnected.
[0007] The second pipe assembly includes a second cooler and a second separator. One end of the second cooler is provided with a third interface for connecting to the second cylinder of the air compressor, and one end of the second separator is provided with a fourth interface for connecting to the third cylinder of the air compressor. The other end of the second cooler and the other end of the second separator are interconnected.
[0008] The third pipe assembly includes a third cooler and a third separator. One end of the third cooler is provided with a fifth interface for connecting to the third cylinder of the air compressor, and one end of the third separator is provided with a sixth interface for connecting to the air tank. The other ends of the third cooler and the other ends of the third separator are interconnected.
[0009] In the above scheme, a cooler is installed at the front end of the separator to cool the gas molecules before separation, which effectively ensures the gas-liquid separation effect. In addition, the use of third cooling and third separation greatly improves the cooling and separation effect and extends the service life of the air compressor.
[0010] Preferably, the first cooler is provided with a first cooling water inlet for connecting to the first cylinder of the air compressor; the second cooler is provided with a second cooling water inlet for connecting to the second cylinder of the air compressor; and the third cooler is provided with a third cooling water inlet for connecting to the third cylinder of the air compressor.
[0011] Preferably, one end of the first cooler is connected to a first conveying pipe, and the end of the first conveying pipe away from the first cooler forms the first interface; one end of the first separator is connected to a second conveying pipe, and the end of the second conveying pipe away from the first separator forms the second interface.
[0012] Preferably, a first flange is provided at the first interface of the first conveying pipe; and a second flange is provided at the second interface of the second conveying pipe.
[0013] Preferably, the first conveying pipe is bent horizontally into an L-shape from the first cooler, and the second conveying pipe is bent vertically upward into an L-shape from the first separator.
[0014] Preferably, one end of the second cooler is connected to a third conveying pipe, and the end of the third conveying pipe away from the second cooler forms the third interface; one end of the second separator is connected to a fourth conveying pipe, and the end of the fourth conveying pipe away from the second separator forms the fourth interface.
[0015] Preferably, a third flange is provided at the third interface of the third conveying pipe, and a fourth flange is provided at the fourth interface of the fourth conveying pipe; the third conveying pipe is horizontally bent into an n-shape from the second cooler, and a support plate is connected to the opening of the n-shape; the fourth conveying pipe is vertically bent upward into an L-shape from the second separator.
[0016] Preferably, one end of the third cooler is connected to a fifth conveying pipe, and the end of the fifth conveying pipe away from the third cooler forms the fifth interface; one end of the third separator is connected to a sixth conveying pipe, and the end of the sixth conveying pipe away from the third separator forms the sixth interface.
[0017] A fifth flange is provided at the fifth interface of the fifth conveying pipe, and a sixth flange is provided at the sixth interface of the sixth conveying pipe; the fifth conveying pipe is bent vertically upward from the third cooler into an irregular shape.
[0018] This utility model also provides an air compressor, including a first cylinder, a second cylinder, a third cylinder, and the above-mentioned gas-liquid separation device. The first interface of the gas-liquid separation device is connected to the first cylinder, the second interface and the third interface are respectively connected to the second cylinder, and the fourth interface and the fifth interface are respectively connected to the third cylinder.
[0019] Compared with related technologies, the beneficial effects of this utility model are as follows:
[0020] I. This utility model has a cooler installed at the front end of the separator to cool the gas molecules before separation, which effectively ensures the gas-liquid separation effect;
[0021] Second, the cooler uses water cooling, which is more environmentally friendly;
[0022] Third, this utility model adopts a three-stage cooling system, each stage can cool the temperature evenly, resulting in good cooling effect, low maintenance cost, and low noise.
[0023] Fourth, this utility model adopts a three-stage separation, which can fully separate the air and liquid after each compression, resulting in good separation effect and extending the service life of the air compressor. Attached Figure Description
[0024] Figure 1 A schematic diagram of the gas-liquid separation device provided by this utility model;
[0025] Figure 2 This is a structural schematic diagram of the first pipe fitting;
[0026] Figure 3 This is a structural schematic diagram of the second pipe fitting;
[0027] Figure 4 This is a structural schematic diagram of the third pipe fitting;
[0028] Figure 5 This is a structural schematic diagram of the air compressor provided by this utility model.
[0029] In the attached diagram: 1. First pipe assembly; 11. First delivery pipe; 12. First cooler; 13. First separator; 14. First cooling water inlet; 15. First interface; 16. Second interface; 17. Second delivery pipe; 18. First flange; 19. Second flange; 2. Second pipe assembly; 21. Third delivery pipe; 22. Second cooler; 23. Fourth delivery pipe; 24. Second separator; 25. Support plate; 26. Third interface; 27. Fourth interface; 28. Third flange; 29. Fourth flange; 210. Second cooling water inlet; 3. Third pipe assembly; 31. Fifth delivery pipe; 32. Third cooler; 33. Third separator; 34. Fifth interface; 35. Third cooling water; 36. Sixth interface; 37. Fifth flange; 38. Sixth flange; 39. Sixth delivery pipe; 4. First cylinder body; 5. Second cylinder body; 6. Third cylinder body. Detailed Implementation
[0030] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.
[0031] like Figure 1 As shown, the gas-liquid separation device provided in this embodiment includes a first tube assembly 1, a second tube assembly 2, and a third tube assembly 3.
[0032] like Figure 1 , Figure 2 As shown, the first pipe assembly 1 includes a first cooler 12 and a first separator 13. One end of the first cooler 12 is connected to a first delivery pipe 11. The end of the first delivery pipe 11 away from the first cooler 12 forms a first interface 15, and a first flange 18 is provided at the first interface 15 of the first delivery pipe 11. The first delivery pipe 11 is horizontally bent into an L-shape from the first cooler 12. The other end of the first cooler 12 is connected to one end of the first separator 13. The first cooler 12 is provided with a first cooling water inlet 14 for communicating with a cooling water pipe in the first cylinder of the air compressor. The first separator 13 is vertically arranged, and its top is connected to a second delivery pipe 17 that is vertically bent upward into an L-shape. The end of the second delivery pipe 17 away from the first separator 13 forms a second interface 16. A second flange 19 is provided at the second interface 16 of the second delivery pipe 17.
[0033] like Figure 1 , Figure 3As shown, the second pipe assembly 2 includes a second cooler 22 and a second separator 24. One end of the second cooler 22 is connected to a third delivery pipe 21. The third delivery pipe 21 is horizontally bent into an n-shape from the second cooler 22, and a support plate 25 is connected to the open end of the n-shape. The end of the third delivery pipe 21 away from the second cooler 22 forms a third interface 26. A third flange 28 is provided at the third interface 26 of the third delivery pipe 21. The second cooler 22 is provided with a second cooling water inlet 210 for connection to the second cylinder of the air compressor. The support plate 25 is connected between the third delivery pipe 21 and the third flange 28. The other end of the second cooler 22 is connected to one end of the second separator 24. The second separator 24 is vertically arranged, and its top is connected to a fourth delivery pipe 23 that is bent vertically upward into an L-shape. The end of the fourth delivery pipe 23 away from the second separator 24 forms a fourth interface 27. A fourth flange 29 is provided at the fourth interface 27 of the fourth delivery pipe 23.
[0034] like Figure 1 , Figure 4 As shown, the third pipe assembly 3 includes a third cooler 32 and a third separator 33. One end of the third cooler 32 is connected to a fifth delivery pipe 31. The fifth delivery pipe 31 is bent vertically upward from the third cooler 32 into an irregular shape. The end of the fifth delivery pipe 31 away from the third cooler 32 forms a fifth interface 34. A fifth flange 37 is provided at the fifth interface 34 of the fifth delivery pipe 31. The third cooler 32 is provided with a third cooling water inlet 35 for connecting to the third cylinder of the air compressor. The other end of the third cooler 32 is connected to the third separator 33. The third separator 33 is vertically arranged, and a sixth delivery pipe 39 extending vertically upward is provided at its top. The end of the sixth delivery pipe 39 away from the third separator 33 forms the sixth interface 36. A sixth flange 38 is provided at the sixth interface 36 of the sixth delivery pipe 39.
[0035] like Figures 1-4 As shown, this utility model also provides an air compressor, which includes a first cylinder 4, a second cylinder 5, a third cylinder 6, and the aforementioned gas-liquid separator device. The first port 15 of the first delivery pipe 11 communicates with the interior of the first cylinder 4, and the first flange 18 is mounted on the outer surface of the first cylinder 4. The first cooling water inlet 14 is connected to the water-cooled pipe inside the first cylinder 4 via a water pipe. The second port 16 of the second delivery pipe 17 communicates with the interior of the second cylinder 5, and the second flange 19 is mounted on the outer surface of the second cylinder 5.
[0036] The third port 26 of the third delivery pipe 21 communicates with the interior of the second cylinder 5, and the third flange 28 is mounted on the outer surface of the second cylinder 5. The fourth port 27 of the fourth delivery pipe 23 communicates with the interior of the third cylinder 6, and the fourth flange 29 is mounted on the outer surface of the third cylinder 6. The second cooling water inlet 210 is connected to the water-cooled pipe inside the second cylinder 5 via a water pipe.
[0037] The fifth port 34 on the fifth delivery pipe 31 is connected to the interior of the third cylinder 6, and the fifth flange 37 is mounted on the outer surface of the third cylinder 6. The sixth port 36 on the sixth delivery pipe 39 is connected to the gas storage tank (not shown), and the sixth flange 38 is mounted on the outer surface of the gas storage tank.
[0038] When the air compressor is working, the air, after being compressed in the first cylinder 4, enters the first delivery pipe 11 through the first interface 15, and then enters the first cooler 12. Simultaneously, cooling water from the first cylinder 4 enters the first cooler 12 through the water pipe and the first cooling water inlet 14, cooling the air with water. The cooled air continues to flow into the first separator 13, where the water further cools the air and exits through another outlet. The first separator 13 performs gas-liquid separation on the incoming air; the separated liquid accumulates at the bottom of the first separator 13 due to gravity, and the separated air enters the second cylinder 5 of the air compressor through the second interface 16.
[0039] After being compressed, the air in the second cylinder 5 enters the third delivery pipe 21 through the third port 26, and then enters the second cooler 22. Simultaneously, cooling water from the second cylinder 5 enters the second cooler 22 through the water pipe and the second cooling water inlet 210, cooling the air. The cooled air continues to flow into the second separator 24, where the water further cools the air and exits through another outlet. The second separator 24 performs gas-liquid separation on the incoming air; the separated liquid accumulates at the bottom of the second separator 24 due to gravity, while the separated air enters the third cylinder 6 of the air compressor through the fourth port 27.
[0040] After being compressed, the air in the third cylinder 6 enters the fifth delivery pipe 31 through the fifth port 34, and then enters the third cooler 32. While the air passes through the third cooler 32, cooling water from the third cylinder 6 enters the third cooler 32 through the water pipe and the third cooling water inlet 35, cooling the air with water. The cooled air continues to flow into the third separator 33, where the water further cools the air and is discharged from another outlet on the third cooler 32. The third separator 33 performs gas-liquid separation on the incoming air; the separated liquid accumulates at the bottom of the third separator 33 due to gravity, while the separated air is output from the sixth port 36 and stored in an air storage tank.
[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A gas-liquid separation device, characterized in that, The first pipe assembly includes a first pipe assembly (1), a second pipe assembly (2), and a third pipe assembly (3). The first pipe assembly (1) includes a first cooler (12) and a first separator (13). One end of the first cooler (12) is provided with a first interface (15) for connecting to the first cylinder of the air compressor. One end of the first separator (13) is provided with a second interface (16) for connecting to the second cylinder of the air compressor. The other end of the first cooler (12) and the other end of the first separator (13) are interconnected. The second pipe assembly (2) includes a second cooler (22) and a second separator (24). One end of the second cooler (22) is provided with a third interface (26) for connecting to the second cylinder of the air compressor. One end of the second separator (24) is provided with a fourth interface (27) for connecting to the third cylinder of the air compressor. The other end of the second cooler (22) and the other end of the second separator (24) are interconnected. The third pipe assembly (3) includes a third cooler (32) and a third separator (33). One end of the third cooler (32) is provided with a fifth interface (34) for connecting to the third cylinder of the air compressor, and one end of the third separator (33) is provided with a sixth interface (36) for connecting to the air tank. The other end of the third cooler (32) and the other end of the third separator (33) are interconnected.
2. The gas-liquid separation device according to claim 1, characterized in that, The first cooler (12) is provided with a first cooling water inlet (14) for connecting to the first cylinder of the air compressor; the second cooler (22) is provided with a second cooling water inlet (210) for connecting to the second cylinder of the air compressor; and the third cooler (32) is provided with a third cooling water inlet (35) for connecting to the third cylinder of the air compressor.
3. The gas-liquid separation device according to claim 1, characterized in that, One end of the first cooler (12) is connected to a first conveying pipe (11), and the end of the first conveying pipe (11) away from the first cooler (12) forms the first interface (15); one end of the first separator (13) is connected to a second conveying pipe (17), and the end of the second conveying pipe (17) away from the first separator (13) forms the second interface (16).
4. The gas-liquid separation device according to claim 3, characterized in that, A first flange (18) is provided at the first interface (15) of the first conveying pipe (11); a second flange (19) is provided at the second interface (16) of the second conveying pipe (17).
5. The gas-liquid separation device according to claim 3, characterized in that, The first conveying pipe (11) is bent horizontally into an L-shape from the first cooler (12), and the second conveying pipe (17) is bent vertically upward into an L-shape from the first separator (13).
6. The gas-liquid separation device according to claim 1, characterized in that, One end of the second cooler (22) is connected to a third delivery pipe (21), and the end of the third delivery pipe (21) away from the second cooler (22) forms the third interface (26); one end of the second separator (24) is connected to a fourth delivery pipe (23), and the end of the fourth delivery pipe (23) away from the second separator (24) forms the fourth interface (27).
7. The gas-liquid separation device according to claim 6, characterized in that, A third flange (28) is provided at the third interface (26) of the third conveying pipe (21), and a fourth flange (29) is provided at the fourth interface (27) of the fourth conveying pipe (23); the third conveying pipe (21) is bent horizontally into an n-shape from the second cooler (22), and a support plate (25) is connected at the opening of the n-shape; the fourth conveying pipe (23) is bent vertically upward into an L-shape from the second separator (24).
8. The gas-liquid separation device according to claim 1, characterized in that, One end of the third cooler (32) is connected to a fifth delivery pipe (31), and the end of the fifth delivery pipe (31) away from the third cooler (32) forms the fifth interface (34); one end of the third separator (33) is connected to a sixth delivery pipe (39), and the end of the sixth delivery pipe (39) away from the third separator (33) forms the sixth interface (36).
9. The gas-liquid separation device according to claim 8, characterized in that, A fifth flange (37) is provided at the fifth interface (34) of the fifth conveying pipe (31), and a sixth flange (38) is provided at the sixth interface (36) of the sixth conveying pipe (39); the fifth conveying pipe (31) is bent vertically upward from the third cooler (32) into an irregular shape.
10. An air compressor, comprising a first cylinder (4), a second cylinder (5), and a third cylinder (6), characterized in that, It also includes a gas-liquid separation device as described in any one of claims 1-9, wherein the first interface (15) of the gas-liquid separation device is connected to the first cylinder (4), the second interface (16) and the third interface (26) are connected to the second cylinder (5) respectively, and the fourth interface (27) and the fifth interface (34) are connected to the third cylinder (6) respectively.