A vacuum pump oil-gas separation device

Abstract

This utility model relates to a vacuum pump oil-gas separation device, comprising: an inner and outer separation cylinder; a mounting plate fixedly installed at the bottom of the inner separation cylinder, with limiting kits fixedly installed on it at circumferentially distributed intervals; a hollow filter element detachably pluggable; and a swinging mechanism, including a drive cylinder fixedly installed on a cover, the piston rod end of the drive cylinder facing the inner side of the inner separation cylinder, and a mounting frame rotatably mounted thereon via corresponding ball joints. The hollow filter elements are connected to the mounting frame via flexible parts on their tops, or via rods hinged at both ends to the hollow filter element and the mounting frame respectively. The extension and retraction of the piston rod of the drive cylinder drives the mounting frame to move up and down and rotate around the ball joints, thereby driving the hollow filter element to swing irregularly. This utility model can effectively promote the rapid dripping and detachment of oil adhering to the filter element, thereby improving the service life of the filter element and reducing the replacement frequency.

Description

Technical Field

[0001] This utility model relates to the technical field of oil-gas separation equipment, specifically to a vacuum pump oil-gas separation device. Background Technology

[0002] Lubricating oil plays a crucial role in the use of vacuum pumps, but it mixes with air in the vacuum pump unit to form an oil-gas mixture. This oil-gas mixture is discharged from the vacuum pump unit and the lubricating oil and air are separated in the oil-gas separator. The separated lubricating oil is cooled and filtered before being recycled back into the vacuum pump unit, while the separated gas is discharged from the vacuum pump.

[0003] A typical oil-gas separator mainly consists of a cylinder and a filter element fixedly installed inside the cylinder. When oil and gas enter the cylinder, they collide with the inner wall, resulting in initial oil-gas separation. The oil-gas mixture after this initial separation passes through the filter element for further separation. The cleaner gas obtained after separation can be discharged through the exhaust pipe. The oil in the oil-gas mixture is intercepted by the filter element and adheres to it, thus achieving the oil-gas separation effect. However, because the filtered oil adheres to the filter element, although some of the adhered oil aggregates into large droplets and drips downwards under gravity, over time, the oil adhering to the filter element can still easily clog the small pores of the filter element, leading to a decrease in oil-gas separation efficiency and requiring frequent replacement of the filter element, which is quite troublesome.

[0004] Therefore, the research objective of this invention is to design a vacuum pump oil-gas separation device that can effectively promote the rapid dripping and detachment of oil adhering to the filter element, thereby reducing the replacement frequency and increasing the service life of the filter element. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the present invention provides a vacuum pump oil-gas separation device, which can effectively solve the technical problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A vacuum pump oil-gas separation device, comprising:

[0008] The outer cylinder is separated, and its side and top are respectively provided with corresponding air inlets and air outlets. The top of the outer cylinder is detachably provided with a corresponding cover, and the air outlet is provided on the cover.

[0009] The inner separator is spaced out and fitted inside the outer separator, thereby dividing the outer separator into a primary separation chamber and an oil collection chamber.

[0010] The mounting plate is fixedly installed at the bottom of the separating inner cylinder and cooperates with the separating inner cylinder to form a corresponding secondary separation chamber. Multiple limiting kits are fixedly arranged at circumferential intervals on the mounting plate, and a through hole is provided in the middle of the limiting kit.

[0011] The hollow filter element is detachably inserted into the limiting kit. After the oil and gas pass through the hollow filter element, the oil in the oil and gas is intercepted by the hollow filter element and adheres to the hollow filter element. The gas flows upward through the small pores on the surface of the hollow filter element and is discharged through the air outlet at the top.

[0012] The oscillating mechanism is used to drive all the hollow filter elements to swing irregularly, causing the oil droplets adhering to the hollow filter elements to fall downwards.

[0013] The swinging mechanism includes a drive cylinder fixedly mounted on the cover. The piston rod end of the drive cylinder faces the inner side of the separating inner cylinder and is rotatably mounted with a mounting bracket via a corresponding ball joint. Each hollow filter element is connected to the mounting bracket via a flexible member set on its top, or via a rod whose two ends are respectively hinged to the hollow filter element and the mounting bracket. When the piston rod of the drive cylinder is reset or extended into place, the bottom of the hollow filter element is always inserted into the limiting kit. The extension and retraction of the piston rod of the drive cylinder drives the mounting bracket to move up and down and rotate around the ball joint, thereby driving the hollow filter element to swing irregularly.

[0014] The oil-gas separation device includes two outer separation cylinders, each containing a corresponding inner separation cylinder. The two outer separation cylinders are spaced apart to form corresponding air guiding intervals. The air inlet is located at the upper part of one side of the air guiding interval, and a herringbone-shaped air diversion guide is located in the middle of the other side where the air inlet is not located. A horizontal isolation plate is installed in the middle of the air guiding interval to separate the upper and lower parts. The lower parts of the two outer separation cylinders are connected to form the oil collecting chamber.

[0015] The oil collecting chamber is equipped with a corresponding oil filling connector, a drain connector, and an oil outlet pipe connected to the vacuum pump. The mounting plate has an oil guide hole in the middle and is connected to the vacuum pump through a corresponding oil guide pipe.

[0016] The limiting kit is composed of two cylindrical parts that are spaced apart and integrally formed. The longitudinal section of the limiting kit has a concave shape. The distance between the inner and outer cylindrical parts is greater than the thickness of the hollow filter element. The bottom of the hollow filter element and the bottom of the distance between the inner and outer cylindrical parts are set as mutually tangent spherical arc shapes.

[0017] The flexible component can be a chain or a pull rope, and is detachably and fixedly connected to the hollow filter element.

[0018] The mounting bracket is formed by an integral mounting section in the middle and support rods around it in a cross shape, and the number of support rods corresponds to the number of limiting kits.

[0019] The limiting kit has a guide rod coaxially arranged in the middle. The guide rod is suspended by a support frame fixed below the mounting plate, and the top of the guide rod is spaced apart from the hollow filter element.

[0020] Advantages of this utility model:

[0021] 1) This utility model adds a swinging mechanism to the oil-gas separation device to allow all hollow filter elements to swing irregularly. This ensures the stability of the hollow filter element installation. A corresponding drive cylinder is installed on the cover, and a star-shaped mounting bracket is mounted at the piston rod end of the drive cylinder via a ball joint. The mounting bracket is connected to each hollow filter element via a flexible component, or via rods with hinged ends to both the hollow filter element and the mounting bracket. After the piston rod of the drive cylinder returns to its original position, it ensures that the bottom of the hollow filter element is always inserted into the limiting kit. When the piston rod of the drive cylinder extends or retracts, it causes the mounting bracket to move up and down irregularly. The flexible component or rods further cause the connected hollow filter elements to swing irregularly, promoting the downward movement of oil adhering to the hollow filter element, which then collects into large particles and drips onto the mounting plate. This reduces the replacement frequency and increases the service life of the hollow filter elements.

[0022] 2) This utility model further provides two parallel-connected outer separation cylinders, and promotes the separation of oil and gas into two parts for processing through the cooperation of the isolation plate and the herringbone-shaped diversion guide. After the oil and gas are diverted by the diversion guide, they flow along the outer and inner separation cylinders to form an annular channel for gas-oil separation. Based on the compact structure, it improves the efficiency and practical effect of oil-gas separation.

[0023] 3) This utility model further improves the limiting kit by setting it into two integrally formed cylindrical parts with an inner and outer spacing, and the spacing is greater than the thickness of the hollow filter element. The bottom of the hollow filter element and the bottom of the spacing between the inner and outer cylindrical parts are set into a spherical arc shape that is mutually tangent. In this way, while ensuring the installation stability of the hollow filter element, the swing smoothness of the hollow filter element can be improved, effectively preventing jamming problems caused by installation, and promoting the installation and use of the swing mechanism and the hollow filter element.

[0024] 4) The present invention further provides a guide rod coaxially arranged in the middle of the limiting kit. The guide rod is suspended by a support frame fixed below the mounting plate, and the top of the guide rod is spaced apart from the hollow filter element. This effectively avoids interference with the swing of the hollow filter element caused by the setting of the guide rod. The hollow filter element can be guided and installed by the setting of the guide rod, which facilitates the quick connection between the hollow filter element and the limiting kit, and further improves the practical effect of the present invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the separated outer cylinder.

[0027] Figure 3 for Figure 1 A cross-sectional diagram.

[0028] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the diagram.

[0029] Figure 5 for Figure 1 A top view diagram with the cover removed.

[0030] In the attached diagram: 1. Separating outer cylinder; 101. Air inlet; 102. Air outlet; 103. Primary separation chamber; 104. Oil collection chamber; 105. Oil filling connector; 106. Sewage discharge connector; 107. Oil outlet pipe; 2. Cover; 3. Separating inner cylinder; 301. Secondary separation chamber; 4. Mounting plate; 5. Limiting kit; 6. Hollow filter element; 7. Swinging mechanism; 701. Drive cylinder; 702. Ball joint; 703. Mounting bracket; 704. Flexible component; 8. Diverting air guide component; 9. Guide rod; 10. Support frame; 11. Oil guide pipe; 12. Isolation plate. Detailed Implementation

[0031] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0032] refer to Figure 1-5 A vacuum pump oil-gas separation device, comprising:

[0033] The outer cylinder 1 is separated, and its side and top are respectively provided with corresponding air inlets 101 and air outlets 102. The top of the outer cylinder 1 is detachably provided with a corresponding cover 2, and the air outlet 102 is provided on the cover 2.

[0034] The inner cylinder 3 is spaced out and sleeved inside the outer cylinder 1, thereby dividing the outer cylinder 1 into a primary separation chamber 103 and an oil collection chamber 104.

[0035] Mounting plate 4 is fixedly installed at the bottom of the separating inner cylinder 3 and cooperates with the separating inner cylinder 3 to form a corresponding secondary separation cavity 301. Multiple limiting kits 5 are fixedly arranged at circumferential intervals on the mounting plate 4, and a through hole is provided in the middle of the limiting kit 5.

[0036] Hollow filter element 6 is detachably inserted into the limiting kit 5. After the oil and gas pass through the hollow filter element 6, the oil in the oil and gas is intercepted by the hollow filter element 6 and adheres to the hollow filter element 6. The gas flows upward through the small pores on the surface of the hollow filter element 6 and is discharged through the air outlet 102 at the top.

[0037] The swing mechanism 7 is used to drive all the hollow filter elements 6 to swing irregularly, so that the oil droplets adhering to the hollow filter elements 6 fall downward.

[0038] The swinging mechanism 7 includes a drive cylinder 701 fixedly mounted on the cover 2. The piston rod end of the drive cylinder 701 faces the inner side of the separating inner cylinder 3 and is rotatably mounted with a mounting bracket 703 via a corresponding ball joint 702. The hollow filter element 6 is connected to the mounting bracket 703 via a flexible member 704 set on its top, or via a rod whose two ends are respectively hinged to the hollow filter element 6 and the mounting bracket 703. When the piston rod of the drive cylinder 701 is reset or extended into place, the bottom of the hollow filter element 6 is always inserted into the limiting kit 5. The extension and retraction of the piston rod of the drive cylinder 701 drives the mounting bracket 703 to move up and down and rotate around the ball joint 702, thereby driving the hollow filter element 6 to swing irregularly.

[0039] This utility model adds a swinging mechanism 7 to the oil-gas separation device for irregularly swinging all hollow filter elements 6. While ensuring the stable installation of hollow filter elements 6, a corresponding drive cylinder 701 is installed on the cover, and a star-shaped mounting bracket 703 is rotatably installed at the piston rod end of the drive cylinder 701 through a corresponding ball joint 702. The mounting bracket 703 is connected to each hollow filter element 6 through a flexible part 704, or through a rod body with both ends hinged to the hollow filter element 6 and the mounting bracket 703 respectively. After the piston rod of the drive cylinder 701 is reset, it is ensured that the bottom of the hollow filter element 6 is always inserted into the limiting kit 5. When the piston rod of the drive cylinder 701 extends and retracts, it causes the mounting bracket 703 to move up and down and swing irregularly. Through the flexible part 704 or the rod, the connected hollow filter element 6 swings irregularly, thereby promoting the oil adhering to the hollow filter element 6 to move downward, collect into large particles, and then drip onto the mounting plate 4, so as to improve the service life of the hollow filter element 6 and reduce the replacement frequency.

[0040] The oil-gas separation device includes two outer separation cylinders 1, and each of the two outer separation cylinders 1 is provided with a corresponding inner separation cylinder 3. The two outer separation cylinders 1 are spaced apart to form corresponding air guiding intervals. The air inlet 101 is located at the upper part of one side of the air guiding interval, and a herringbone-shaped air diversion guide 8 is provided in the middle of the other side where the air inlet 101 is not located. A horizontal isolation plate 12 is provided in the middle of the air guiding interval to isolate the upper and lower parts. The lower parts of the two outer separation cylinders 1 are connected to form the oil collecting chamber 104.

[0041] This utility model further provides two parallel-connected outer separation cylinders 1, and through the cooperation of the isolation plate 12 and the herringbone-shaped diversion guide 8, promotes the separation of oil and gas into two parts for processing. After the oil and gas are diverted by the diversion guide 8, they flow along the outer separation cylinder 1 and the inner separation cylinder 2 to form an annular channel for gas-oil separation. Based on the compact structure, it improves the efficiency and practical effect of oil-gas separation.

[0042] The oil collecting chamber 104 is equipped with a corresponding oil filling connector 105, a drain connector 106, and an oil outlet pipe 107 connected to the vacuum pump. The mounting plate 4 has an oil guide hole in the middle and is connected to the vacuum pump through a corresponding oil guide pipe 11.

[0043] The limiting kit 5 is composed of two cylindrical parts that are spaced apart and integrally formed. The longitudinal section of the limiting kit 5 is U-shaped. The distance between the inner and outer cylindrical parts is greater than the thickness of the hollow filter element 6. The bottom of the hollow filter element 6 and the bottom of the distance between the inner and outer cylindrical parts are set as mutually tangent spherical arc shapes.

[0044] This utility model further improves the limiting kit 5 by setting it into two integrally formed cylindrical parts with an inner and outer spacing, and the spacing is greater than the thickness of the hollow filter element 6. The bottom of the hollow filter element 6 and the bottom of the spacing between the inner and outer cylindrical parts are set into a spherical arc shape that is mutually tangent. In this way, while ensuring the installation stability of the hollow filter element 6, the smoothness of the swing of the hollow filter element 6 can be improved, effectively preventing jamming problems caused by installation, and promoting the installation and use of the swing mechanism 7 and the hollow filter element 6.

[0045] The flexible component 704 may be a chain or a pull rope, and is detachably and fixedly connected to the hollow filter element 6.

[0046] The mounting bracket 703 is formed by an integral mounting part in the middle and support rods around it in a cross shape, and the number of support rods corresponds to the number of limiting kits 5.

[0047] The limiting kit 5 has a guide rod 9 coaxially arranged in the middle. The guide rod 9 is suspended by a support frame 10 fixed below the mounting plate 4, and the top of the guide rod 9 is spaced apart from the hollow filter element 6.

[0048] This utility model further includes a guide rod 9 coaxially arranged in the middle of the limiting kit 5. The guide rod 9 is suspended by a support frame 10 fixed below the mounting plate 4, and the top of the guide rod 9 is spaced apart from the hollow filter element 6. This effectively avoids interference with the swing of the hollow filter element 6 caused by the setting of the guide rod 9. The hollow filter element 6 can be guided and installed by the setting of the guide rod 9, which facilitates the quick connection between the hollow filter element 6 and the limiting kit 5, further improving the practical effect of this utility model.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vacuum pump oil and gas separation device, characterized in that, include: The outer cylinder (1) is separated, and its side and top are respectively provided with corresponding air inlets (101) and air outlets (102). The top of the outer cylinder (1) is detachably provided with a corresponding cover (2), and the air outlet (102) is provided on the cover (2). The inner cylinder (3) is spaced out and sleeved on the inner side of the outer cylinder (1), thereby dividing the outer cylinder (1) into a primary separation chamber (103) and an oil collection chamber (104). The mounting plate (4) is fixedly installed at the bottom of the separating inner cylinder (3) and forms a corresponding secondary separation chamber (301) with the separating inner cylinder (3). Multiple limiting kits (5) are fixedly arranged on the mounting plate (4) with a circumferentially distributed spacing. A through hole is provided in the middle of the limiting kit (5) that runs through the top and bottom. Hollow filter element (6) is detachably inserted into the limiting kit (5). After the oil and gas pass through the hollow filter element (6), the oil in the oil and gas is intercepted by the hollow filter element (6) and adheres to the hollow filter element (6). The gas flows upward through the small pores on the surface of the hollow filter element (6) and is discharged through the air outlet (102) at the top. The swing mechanism (7) is used to drive all the hollow filter elements (6) to swing irregularly, so that the oil droplets adhering to the hollow filter elements (6) fall downward.

2. A vacuum pump oil and gas separation device according to claim 1, characterized in that The swinging mechanism (7) includes a drive cylinder (701) fixedly installed on the cover (2). The piston rod end of the drive cylinder (701) faces the inner side of the separating inner cylinder (3) and is rotatably mounted with a mounting bracket (703) through a corresponding ball joint (702). The hollow filter element (6) is connected to the mounting bracket (703) through a flexible part (704) set on its top, or through a rod body with both ends hinged to the hollow filter element (6) and the mounting bracket (703) respectively. When the piston rod of the drive cylinder (701) is reset or extended into place, the bottom of the hollow filter element (6) is always inserted into the limiting kit (5). The extension and retraction of the piston rod of the drive cylinder (701) drives the mounting bracket (703) to move up and down and rotate around the ball joint (702), thereby driving the hollow filter element (6) to swing irregularly.

3. A vacuum pump oil and gas separation device according to claim 2, wherein, The oil-gas separation device includes two outer separation cylinders (1) and each of the two outer separation cylinders (1) is provided with a corresponding inner separation cylinder (3). The two outer separation cylinders (1) are spaced apart to form a corresponding air guiding interval. The air inlet (101) is located on the upper part of one side of the air guiding interval, and a herringbone-shaped air diversion guide (8) is provided in the middle of the other side where the air inlet (101) is not provided. A horizontal isolation plate (12) is provided in the middle of the air guiding interval to isolate the upper and lower parts. The lower parts of the two outer separation cylinders (1) are connected to form the oil collecting chamber (104).

4. A vacuum pump oil and gas separation device according to claim 2 or 3, characterised in that, The oil collection chamber (104) is equipped with a corresponding oil filling connector (105), a drain connector (106), and an oil outlet pipe (107) connected to the vacuum pump. The mounting plate (4) has an oil guide hole in the middle and is connected to the vacuum pump through a corresponding oil guide pipe (11).

5. A vacuum pump oil and gas separation device according to claim 2, wherein, The limiting kit (5) is composed of two cylindrical parts that are spaced apart and integrally formed. The longitudinal section of the limiting kit (5) is U-shaped. The distance between the inner and outer cylindrical parts is greater than the thickness of the hollow filter element (6). The bottom of the hollow filter element (6) and the bottom of the distance between the inner and outer cylindrical parts are set as mutually tangent spherical arc shapes.

6. The vacuum pump oil-gas separation device according to claim 2, characterized in that, The flexible component (704) may be a chain or a pull rope, and is detachably and fixedly connected to the hollow filter element (6).

7. A vacuum pump oil and gas separation device according to claim 2, wherein, The mounting bracket (703) is formed by the central mounting part and the surrounding support rods in an integrated manner, forming a cross-shaped structure, and the number of the support rods corresponds to the number of the limiting kit (5).

8. A vacuum pump oil and gas separation device according to claim 2, wherein, The limiting kit (5) has a guide rod (9) coaxially arranged in the middle. The guide rod (9) is suspended by a support frame (10) fixed below the mounting plate (4), and the top of the guide rod (9) is spaced apart from the hollow filter element (6).

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