Hollow fiber membrane device for purifying compressor oil

Abstract

The present application belongs to the technical field of hollow fiber membrane filtration, and specifically discloses a hollow fiber membrane device for purifying compressor oil liquid, which comprises a support ring body, support frames are symmetrically arranged on both sides of the support ring body, fixed legs are arranged on the side walls of the support frames, an annular groove is arranged on the inner wall of the support ring body, an oil passage ring body is rotatably arranged in the annular groove, a rotary conversion assembly is arranged on the support frame, a vibrating hollow fiber membrane assembly is arranged on the rotary conversion assembly, both ends of the vibrating hollow fiber membrane assembly are fixed to the inner side walls of the oil passage ring body, a backwashing assembly is arranged at the lower part of the support ring body, and a magnetic vibrating assembly is arranged on the support ring body and the vibrating hollow fiber membrane assembly. The present application alternately realizes the straightening and non-straightening state of the hollow fiber membrane bundle, and alternately realizes the purification of the hollow fiber membrane bundle to the dirty oil and the backwashing of the hollow fiber membrane bundle, thereby improving the efficiency of the hollow fiber membrane purification and backwashing.

Description

Technical Field

[0001] This invention belongs to the field of hollow fiber membrane filtration technology, specifically referring to a hollow fiber membrane device for purifying compressor oil. Background Technology

[0002] In the daily operation of compressors and other construction machinery, the control of hydraulic oil contamination is crucial for the normal operation of the hydraulic system. Hydraulic oil contains stationary contaminants that remain after the wear of hydraulic components or after machining and assembly.

[0003] Currently, hydraulic oil contamination control technologies mainly include: 1. High-precision filter cartridge filtration: This method uses multiple types of filter cartridges for multi-stage filtration to remove particulate contaminants from hydraulic oil. It offers good filtration efficiency and is easy to use, but the filter cartridges are prone to clogging and require frequent replacement. 2. Electrostatic filtration: This method uses high-voltage electrostatic adsorption to remove contaminants from the oil. It is suitable for purifying oil storage equipment, but has low purification efficiency. 3. Centrifugal filtration: This method offers fast purification speed, but requires large equipment, is inconvenient to move, and has low precision. 4. Coalescing filtration: By utilizing the wettability of the surface material of the coalescing filter cartridge, a certain degree of oil-water separation can be achieved. It has a certain removal effect on solid and water contaminants in hydraulic oil, but is not suitable for hydraulic oils with high levels of fixed contaminants. Traditional filtration technologies are energy-intensive and inefficient. Waste filter cartridges are classified as hazardous waste, and their disposal is expensive.

[0004] Hollow fiber membranes are fibrous membranes with a self-supporting structure. They are made from polysulfone and dimethylacetamide, processed into hollow filaments with selective permeation properties. Therefore, hollow fiber membranes are very effective for purifying hydraulic oil. To improve purification efficiency, hollow fiber membranes need to be densely packed. However, if the density is too high, particulate matter in the hydraulic oil may become trapped between the hollow fiber membranes and cannot settle, reducing the purification effect.

[0005] Therefore, a hollow fiber membrane device for compressor oil purification is needed to solve the above problems. Summary of the Invention

[0006] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a hollow fiber membrane device for purifying compressor oil. A sliding cylinder is fitted onto the purification cylinder, which alternating between the straightened and non-straightened states of the hollow fiber membrane bundle. Simultaneously, it alternately purifies the contaminated oil and backwashes the hollow fiber membrane bundle, improving the efficiency of hollow fiber membrane purification and backwashing. This also solves the technical problem of excessively high hollow fiber membrane density, causing particulate matter in the hydraulic oil to become trapped between the hollow fiber membranes and unable to settle and be removed.

[0007] The technical solution adopted by this invention is as follows: This invention proposes a hollow fiber membrane device for purifying compressor oil, including a support ring body. Support frames are symmetrically arranged on both sides of the support ring body. Fixed legs are provided on the side walls of the support frames. An annular groove is provided on the inner wall of the support ring body. An oil-passing ring body is rotatably arranged within the annular groove. A rotational conversion assembly is provided on the support frame. A vibrating hollow fiber membrane assembly is provided on the rotational conversion assembly. Both ends of the vibrating hollow fiber membrane assembly are fixed to the inner side walls of the oil-passing ring body. A backwashing assembly is provided at the lower part of the support ring body. Magnetic vibration components are provided on the support ring body and the vibrating hollow fiber membrane assembly.

[0008] Furthermore, the rotational conversion assembly includes a fixed hoop, a rotating shaft, and a drive motor. The two sides of the fixed hoop are rotatably mounted on the inner sidewall of the support frame via the rotating shaft, one of which passes through the sidewall of the support frame. The drive motor is mounted on the fixed leg and is connected to the rotating shaft.

[0009] Furthermore, the vibrating hollow fiber membrane module includes a purification cylinder, a fixing ring, a compression spring, a sliding cylinder, a hollow fiber membrane bundle, a movable end cap, a fixed end cap, a support tube, a sleeve, a fixing tube, a support block, and a fixing block. The purification cylinder is fixedly disposed within a fixing hoop. The fixed end cap is disposed at the lower end of the purification cylinder. The fixing ring is fixedly sleeved on the upper part of the outer wall of the purification cylinder. The sliding cylinder is slidably sleeved on the upper end of the purification cylinder. The movable end cap is disposed at the end of the sliding cylinder. The compression spring is sleeved on the outer wall of the purification cylinder, and the two ends of the compression spring are respectively disposed on the fixing ring and the sliding cylinder. The supporting block is located on the inner wall of the connection between the purification cylinder and the fixed end cap. The fixed block is located on the inner wall of the connection between the sliding cylinder and the movable end cap. The hollow fiber membrane bundle array is located between the supporting block and the fixed end cap. One end of the hollow fiber membrane bundle is located inside the fixed block, and the other end of the hollow fiber membrane bundle passes through the supporting block. The upper end of the fixed tube is located on the fixed end cap, and the lower end of the fixed tube is located on the oil passage ring. The lower end of the supporting tube passes through the fixed block and the fixed end cap. The sleeve is slidably sleeved on the upper end of the supporting tube, and the upper end of the sleeve is located on the inner wall of the oil passage ring.

[0010] Furthermore, the outer wall of the oil passage ring is provided with a through hole one and a through hole two. The through hole one is aligned with the sleeve, and the through hole two is aligned with the fixed pipe. The outer wall of the oil passage ring is provided with an oil passage groove in a clockwise direction starting from the fixed pipe. The curvature of the oil passage groove is smaller than the curvature between the moving poles of the fixed pipe.

[0011] Furthermore, the magnetic vibration assembly includes a support column, which is disposed on the outer wall of the movable end cap. A magnetic block one is disposed on the support column, and a magnetic block two is arranged on the inner side wall of the support ring between the two moving poles of the sleeve. The magnetic blocks one and the magnetic blocks two have the same magnetism.

[0012] Furthermore, the lower part of the outer wall of the support ring is provided with a lower oil pipe, which is aligned with one of the moving poles of the fixed pipe.

[0013] Furthermore, the upper part of the outer wall of the support ring is provided with an oil sludge pipe, which is connected to the ring groove.

[0014] Furthermore, a slag removal pipe is provided on the outer wall of the connection between the purification cylinder and the fixed end cap.

[0015] Furthermore, the backwashing assembly includes an oil tank, an oil pump, an oil suction pipe, and an oil outlet pipe. The oil tank is located between the lower parts of the fixed legs, the oil pump is located on the outer wall of the oil tank, the oil tank and the oil pump are connected by the oil suction pipe, the oil pump and the support ring are connected by the oil outlet pipe, the oil outlet pipe communicates with the ring groove, and the connection point of the oil outlet pipe on the support ring is aligned with another moving pole of the fixed pipe.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] 1. In the initial state, the through hole one on the oil ring body is aligned with the sludge pipe, and the lower oil pipe is aligned with the through hole two. The sludge enters the sleeve and support pipe through the through hole one, and then enters the space composed of the purification cylinder, the fixed block, the sliding cylinder and the support block. Under the action of oil pressure, the purified oil enters the hollow fiber membrane bundle, while solid impurities are blocked outside the hollow fiber membrane bundle. The purified oil that enters the hollow fiber membrane bundle enters between the fixed end cap and the support block, and then flows into the oil tank through the fixed pipe, the through hole two and the lower oil pipe.

[0018] 2. When the purification cylinder rotates clockwise, the first through hole is misaligned with the sludge pipe, preventing the sludge from entering the sleeve. The second through hole is misaligned with the lower oil pipe, and at the same time, the second through hole enters the stage of connecting with the oil trough. The oil pump delivers the purified oil to the space between the fixed end cover and the support block. Under the action of oil pressure, the oil enters the hollow fiber membrane bundle, thereby backwashing the hollow fiber membrane bundle.

[0019] 3. During the clockwise and counterclockwise rotation of the rotating shaft, when magnetic block one aligns with magnetic block two, magnetic block one moves towards the fixed hoop. Magnetic block one drives the movable end cover, sliding cylinder, and fixed block to move. The fixed block drives the upper end of the hollow fiber membrane bundle to move. At this time, the hollow fiber membrane bundle is in a non-stretched state. When magnetic block one and magnetic block two are misaligned, the compression spring pushes the sliding cylinder and movable end cover upwards, and the fixed block moves upwards along the axis. The fixed block straightens the hollow fiber membrane bundle, thereby realizing that the hollow fiber membrane bundle is alternately in a non-stretched state and a straightened state, so that the solid impurities stuck between the hollow fiber membrane bundles sink to the slag removal pipe. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural schematic diagram of a hollow fiber membrane device for purifying compressor oil proposed in this invention;

[0021] Figure 2 for Figure 1 The left view;

[0022] Figure 3 A schematic diagram showing the positional relationship between the support ring, support frame, and rotary transformation assembly;

[0023] Figure 4 for Figure 3 Top view;

[0024] Figure 5 A three-dimensional structural diagram of an oil-passing ring and a vibrating hollow fiber membrane module;

[0025] Figure 6 A cross-sectional view of the oil-passing annulus and the vibrating hollow fiber membrane module;

[0026] Figure 7 for Figure 6 Enlarged view of section A in the middle;

[0027] Figure 8 for Figure 6 Enlarged view of section B.

[0028] The components are as follows: 1. Support ring body, 2. Support frame, 3. Fixed leg, 4. Ring groove, 5. Oil passage ring body, 6. Rotation conversion assembly, 7. Vibrating hollow fiber membrane assembly, 8. Backwash assembly, 9. Magnetic vibration assembly, 10. Fixed hoop, 11. Rotating shaft, 12. Drive motor, 13. Purification cylinder, 14. Fixed ring, 15. Compression spring, 16. Sliding cylinder, 17. Hollow fiber membrane bundle, 18. Movable end cap, 19. Fixed end cap, 20. Support tube, 21. Sleeve, 22. Fixed tube, 23. Support block, 24. Fixed block, 25. Through hole one, 26. Oil passage groove, 27. Support column, 28. Magnetic block one, 29. Magnetic block two, 30. Lower oil pipe, 31. Sludge pipe, 32. Slag removal pipe, 33. Oil tank, 34. Oil pump, 35. Oil suction pipe, 36. Oil outlet pipe, 37. Through hole two.

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] like Figure 1 As shown, this invention proposes a hollow fiber membrane device for purifying compressor oil, comprising a support ring 1, with support frames 2 symmetrically arranged on both sides of the support ring 1, fixed legs 3 provided on the side walls of the support frames 2, annular grooves 4 provided on the inner walls of the support ring 1, an oil-passing ring 5 rotatably arranged within the annular grooves 4, a rotational conversion assembly 6 provided on the support frames 2, a vibrating hollow fiber membrane assembly 7 provided on the rotational conversion assembly 6, with both ends of the vibrating hollow fiber membrane assembly 7 fixed to the inner side walls of the oil-passing ring 5, a backwashing assembly 8 provided at the lower part of the support ring 1, and magnetic vibration assemblies 9 provided on the support ring 1 and the vibrating hollow fiber membrane assembly 7.

[0033] like Figure 1 , Figure 3 , Figure 4 As shown, the rotational conversion assembly 6 includes a fixed hoop 10, a rotating shaft 11, and a transmission motor 12. The two sides of the fixed hoop 10 are rotatably mounted on the inner sidewall of the support frame 2 via the rotating shaft 11, one of which of the rotating shafts 11 passes through the sidewall of the support frame 2. The transmission motor 12 is mounted on the fixed leg 3 and is connected to the rotating shaft 11.

[0034] like Figure 1 , Figure 3 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the vibrating hollow fiber membrane module 7 includes a purification cylinder 13, a fixing ring 14, a compression spring 15, a sliding cylinder 16, a hollow fiber membrane bundle 17, a movable end cap 18, a fixed end cap 19, a support tube 20, a sleeve 21, a fixing tube 22, a support block 23, and a fixing block 24. The purification cylinder 13 is fixedly installed inside the fixing hoop 10. The fixed end cap 19 is located at the lower end of the purification cylinder 13. The fixing ring 14 is fixedly sleeved on the upper part of the outer wall of the purification cylinder 13. The sliding cylinder 16 is slidably sleeved on the upper end of the purification cylinder 13. The movable end cap 18 is located at the end of the sliding cylinder 16. The compression spring 15 is sleeved on the outer wall of the purification cylinder 13. The two ends of the compression spring 15 are respectively located on the fixing ring 14 and the sliding cylinder 16. On the moving cylinder 16, the support block 23 is located on the inner wall of the connection between the purification cylinder 13 and the fixed end cap 19, the fixed block 24 is located on the inner wall of the connection between the sliding cylinder 16 and the moving end cap 18, the hollow fiber membrane bundle 17 is arrayed between the support block 23 and the fixed end cap 18, one end of the hollow fiber membrane bundle 17 is located inside the fixed block 24, and the other end of the hollow fiber membrane bundle 17 passes through the support block 23, the upper end of the fixed tube 22 is located on the fixed end cap 19, the lower end of the fixed tube 22 is located on the oil passage ring 5, the lower end of the support tube 20 passes through the fixed block 24 and the fixed end cap 19, the sleeve 21 is slidably sleeved on the upper end of the support tube 20, and the upper end of the sleeve 21 is located on the inner wall of the oil passage ring 5.

[0035] like Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the outer wall of the oil passage ring 5 is provided with a first through hole 25 and a second through hole 37. The first through hole 25 is aligned with the sleeve 21, and the second through hole 37 is aligned with the fixed pipe 22. The outer wall of the oil passage ring 5 is provided with an oil passage groove 26 in a clockwise direction starting from the fixed pipe 22. The arc of the oil passage groove 26 is less than the arc between the moving poles of the fixed pipe 22. The oil passage groove 26 is not connected to the second through hole 37. When the second through hole 37 is aligned with the lower oil pipe 30, the oil outlet pipe 36 is not connected to the oil passage groove 26.

[0036] like Figure 1 , Figure 2 , Figure 5 As shown, the magnetic vibration assembly 9 includes a support column 27, which is located on the outer wall of the movable end cover 18. A magnetic block 28 is provided on the support column 27. A magnetic block 29 is arranged on the inner side wall of the support ring 1 between the two moving poles of the sleeve 21. The magnetic blocks 28 and 29 have the same magnetism.

[0037] like Figure 1 , Figure 3 , Figure 5As shown, the lower part of the outer wall of the support ring 1 is provided with a lower oil pipe 30, and the lower oil pipe 30 is aligned with a moving pole of the fixed pipe 22.

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, the upper part of the outer wall of the support ring 1 is provided with an oily pipe 31, which is connected to the ring groove 4.

[0039] like Figure 1 , Figure 2 , Figure 5 As shown, the outer wall of the connection between the purification cylinder 13 and the fixed end cap 19 is provided with a slag removal pipe 32, and a switch is provided on the slag removal pipe 32.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the backwashing assembly 8 includes an oil tank 33, an oil pump 34, an oil suction pipe 35, and an oil outlet pipe 36. The oil tank 33 is located between the lower parts of the fixed legs 3. The oil pump 34 is located on the outer wall of the oil tank 33. The oil tank 33 and the oil pump 34 are connected by the oil suction pipe 35. The oil pump 34 is connected to the support ring 1 by the oil outlet pipe 36. The oil outlet pipe 36 communicates with the ring groove 4. The connection point of the oil outlet pipe 36 on the support ring 1 is aligned with another moving pole of the fixed pipe 22.

[0041] In practical use, the sludge is introduced into the sludge pipe 31 by a pump. In the initial state, the through hole 25 on the oil ring body 5 is aligned with the sludge pipe 31, and the lower oil pipe 30 on the support ring body 1 is aligned with the through hole 37 on the oil ring body 5. The sludge enters the sleeve 21 through the through hole 25, enters the support pipe 20 through the sleeve 21, and then enters the space composed of the purification cylinder 13, the fixed block 24, the sliding cylinder 16 and the support block 23 through the support pipe 20. Under the action of oil pressure, the purified oil enters the hollow fiber membrane bundle 17, while solid impurities are blocked outside the hollow fiber membrane bundle 17. The purified oil that enters the hollow fiber membrane bundle 17 enters between the fixed end cap 19 and the support block 23, and then flows into the oil tank 33 through the fixed pipe 22, the through hole 37 and the lower oil pipe 30.

[0042] After a period of purification, the drive motor 12 is turned on. The drive motor 12 drives the rotating shaft 11 to rotate clockwise, the rotating shaft 11 drives the fixing clamp 10 to rotate clockwise, and the fixing clamp 10 drives the purification cylinder 13 to rotate clockwise. During this process, the through hole 1 25 is misaligned with the sludge pipe 31, preventing sludge from entering the sleeve 21. The through hole 2 37 is misaligned with the lower oil pipe 30, and at the same time, the through hole 2 37 enters the stage of connecting with the oil passage 26. The oil pump 34 is turned on, and the oil pump 34 sucks the purified oil into the suction pipe 35, and then delivers it to the oil outlet pipe 36. After passing through the oil outlet pipe 36, it enters the oil passage 26, and then enters the fixed pipe 22. Inside, the solid impurities enter between the fixed end cap 19 and the support block 23 through the fixed pipe 22. Under the action of oil pressure, they enter the hollow fiber membrane bundle 17, thereby backwashing the hollow fiber membrane bundle 17. The solid impurities adsorbed on the hollow fiber membrane bundle 17 enter the purification cylinder 13 and the sliding cylinder 16. After the purification cylinder 13 rotates clockwise to the extreme position, it controls the drive motor 12 in the reverse direction. The drive motor 12 drives the rotating shaft 11 to rotate clockwise. The rotating shaft 11 drives the fixed hoop 10 to rotate counterclockwise. The fixed hoop 10 drives the purification cylinder 13 to rotate counterclockwise. During the above process, the switch on the slag removal pipe 32 is opened to export the solid impurities.

[0043] During the clockwise and counterclockwise rotation of the rotating shaft 11 driven by the drive motor 12, magnetic block 1 28 and magnetic block 29 are intermittently aligned. When magnetic block 1 28 and magnetic block 29 are aligned, since magnetic block 1 28 and magnetic block 29 have the same magnetism, magnetic block 1 28 moves toward the fixed hoop 10. Magnetic block 1 28 drives the movable end cover 18 and the sliding cylinder 16 to move, which in turn drives the fixed block 24 to move. The fixed block 24 drives the upper end of the hollow fiber membrane bundle 17 to move. At this time, the hollow fiber membrane bundle 17 is in a non-straightened state. When magnetic block 1 28 and magnetic block 29 are misaligned, the compression spring 15 pushes the sliding cylinder 16 and the movable end cover 18 upward, which in turn drives the fixed block 24 to move upward along the axis. The fixed block 24 straightens the hollow fiber membrane bundle 17, thereby realizing that the hollow fiber membrane bundle 17 is alternately in a non-straightened state and a straightened state, so that the solid impurities stuck between the hollow fiber membrane bundles 17 sink to the slag removal pipe 32.

[0044] When the through hole 25 is aligned with the sludge pipe 31 again, and the through hole 37 is aligned with the lower oil pipe 30 again, close the slag removal pipe 32 and the drive motor 12, and repeat the above operation to achieve the purification of sludge.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

[0047] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A hollow fiber membrane device for purifying compressor oil, comprising a support ring (1), wherein support frames (2) are symmetrically arranged on both sides of the support ring (1), and the side walls of the support frames (2) are provided with fixing legs (3), characterized in that: The inner wall of the support ring (1) is provided with an annular groove (4), and an oil-conducting ring (5) is rotatably provided in the annular groove (4). The support frame (2) is provided with a rotation conversion component (6), and a vibrating hollow fiber membrane component (7) is provided on the rotation conversion component (6). The two ends of the vibrating hollow fiber membrane component (7) are fixed to the inner sidewall of the oil-conducting ring (5). The lower part of the support ring (1) is provided with a backwashing component (8), and a magnetic vibration component (9) is provided on the support ring (1) and the vibrating hollow fiber membrane component (7). The rotational conversion assembly (6) includes a fixed hoop (10), a rotating shaft (11), and a drive motor (12). The two sides of the fixed hoop (10) are rotatably mounted on the inner side wall of the support frame (2) via the rotating shaft (11). One of the rotating shafts (11) passes through the side wall of the support frame (2). The drive motor (12) is mounted on the fixed leg (3) and is connected to the rotating shaft (11). The vibrating hollow fiber membrane module (7) includes a purification cylinder (13), a fixing ring (14), a compression spring (15), a sliding cylinder (16), a hollow fiber membrane bundle (17), a movable end cap (18), a fixed end cap (19), a support tube (20), a sleeve (21), a fixing tube (22), a support block (23), and a fixing block (24). The purification cylinder (13) is fixed inside the fixing hoop (10). The fixed end cap (19) is located at the lower end of the purification cylinder (13). The fixing ring (14) is fixedly sleeved on the upper part of the outer wall of the purification cylinder (13). The sliding cylinder (16) is slidably sleeved on the upper end of the purification cylinder (13). The movable end cap (18) is located at the end of the sliding cylinder (16). The compression spring (15) is sleeved on the outer wall of the purification cylinder (13). The two ends of the compression spring (15) are respectively located on the fixing ring (14). On the sliding cylinder (16), the support block (23) is located on the inner wall of the connection between the purification cylinder (13) and the fixed end cap (19), the fixed block (24) is located on the inner wall of the connection between the sliding cylinder (16) and the movable end cap (18), the hollow fiber membrane bundle (17) array is located between the support block (23) and the fixed end cap (19), one end of the hollow fiber membrane bundle (17) is located inside the fixed block (24), and the other end of the hollow fiber membrane bundle (17) is located through the support block (23), the upper end of the fixed tube (22) is located on the fixed end cap (19), the lower end of the fixed tube (22) is located on the oil passage ring (5), the lower end of the support tube (20) is located through the fixed block (24) and the movable end cap (18), the sleeve (21) is slidably sleeved on the upper end of the support tube (20), and the upper end of the sleeve (21) is located on the inner wall of the oil passage ring (5); The magnetic vibration assembly (9) includes a support column (27), which is located on the outer wall of the movable end cap (18). A magnetic block (28) is provided on the support column (27). A magnetic block (29) is arranged on the inner wall of the support ring (1) between the two moving poles of the sleeve (21). The magnetic blocks (28) and the magnetic blocks (29) have the same magnetism.

2. The hollow fiber membrane device for purifying compressor oil according to claim 1, characterized in that: The outer wall of the oil passage ring (5) is provided with a through hole one (25) and a through hole two (37). The through hole one (25) is aligned with the sleeve (21), and the through hole two (37) is aligned with the fixed pipe (22). The outer wall of the oil passage ring (5) is provided with an oil passage groove (26) starting from the fixed pipe (22) and moving clockwise. The arc of the oil passage groove (26) is smaller than the arc between the moving poles of the fixed pipe (22).

3. The hollow fiber membrane device for purifying compressor oil according to claim 1, characterized in that: The lower part of the outer wall of the support ring (1) is provided with a lower oil pipe (30), and the lower oil pipe (30) is aligned with a moving pole of the fixed pipe (22).

4. The hollow fiber membrane device for purifying compressor oil according to claim 3, characterized in that: The upper part of the outer wall of the support ring (1) is provided with an oil sludge pipe (31), which is connected to the ring groove (4).

5. A hollow fiber membrane device for purifying compressor oil according to claim 4, characterized in that: The outer wall of the connection between the purification cylinder (13) and the fixed end cap (19) is provided with a slag removal pipe (32).

6. The hollow fiber membrane device for purifying compressor oil according to claim 5, characterized in that: The backwashing assembly (8) includes an oil tank (33), an oil pump (34), an oil suction pipe (35), and an oil outlet pipe (36). The oil tank (33) is located between the lower parts of the fixed legs (3). The oil pump (34) is located on the outer wall of the oil tank (33). The oil tank (33) and the oil pump (34) are connected by the oil suction pipe (35). The oil pump (34) is connected to the support ring (1) by the oil outlet pipe (36). The oil outlet pipe (36) is connected to the ring groove (4). The connection point of the oil outlet pipe (36) on the support ring (1) is aligned with another moving pole of the fixed pipe (22).

Images