Threaded connection oil mist separation filter element with high sealing performance
By designing an oil mist separation filter element with threaded connection and high-pressure gas cleaning, the problems of cumbersome operation and poor sealing in the existing technology have been solved, achieving simple installation and efficient cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-14
AI Technical Summary
The existing oil mist separator filter element is cumbersome to replace and has poor sealing at the connection, which affects the filter element's performance.
A threaded connection oil mist separator filter element with high sealing performance was designed. It adopts an upper and lower cover structure, and the mounting base is equipped with external threads and sealing rings. The threaded connection enables simple installation, and high-pressure gas is used to clean the filter media cartridge, reducing disassembly steps.
It achieves easy installation and high-sealing connection of the filter element, simplifies the replacement process, and improves cleaning efficiency and filter element performance by cleaning the filter media cartridge with high-pressure gas.
Smart Images

Figure CN224113578U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of filter element technology, specifically relating to a threaded connection oil mist separation filter element with high sealing performance. Background Technology
[0002] With the acceleration of industrialization, oil mist generated in industrial production poses an increasingly serious threat to the environment and human health. Oil mist contains various harmful substances, such as oil droplets, particulate matter, and volatile organic compounds, which not only pollute the air but may also cause respiratory diseases, skin allergies, and other health problems. Furthermore, oil mist can damage equipment, reducing its lifespan and performance. As the core component of oil mist purification equipment, the performance of the oil mist separator filter element directly affects the separation effect and purification efficiency. High-quality oil mist separator filters can efficiently remove harmful substances from oil mist, reducing harm to the environment and human health, while protecting equipment and improving production efficiency.
[0003] Existing oil mist separator filters require replacement and cleaning during use. Since they are fixed to the equipment with screws, multiple screws need to be removed one by one during replacement, which is a cumbersome operation. In addition, the sealing effect at the connection between the oil mist separator filter and the equipment is not good, which can easily affect the performance of the oil mist separator filter. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a threaded connection oil mist separator filter element with high sealing performance. This filter element aims to solve the problems that the operation steps of replacing existing oil mist separator filter elements are relatively cumbersome, and the sealing effect at the connection between the oil mist separator filter element and the equipment is not good, which affects the performance of the oil mist separator filter element.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides a threaded connection oil mist separator filter element with high sealing performance. The filter element includes an upper cover and a lower cover, and a filter media cylinder is disposed between the upper cover and the lower cover. One end of the filter media cylinder is inserted into the upper cover, and the other end of the filter media cylinder is inserted into the lower cover. A mounting base is fixedly connected to the end of the upper cover away from the filter media cylinder. An annular mounting groove is opened on the outer surface of the end of the mounting base near the filter media cylinder. A sealing ring is installed inside the mounting groove. An external thread is opened on the outer surface of the other end of the mounting base. An axial liquid inlet hole is opened on the mounting base, and the liquid inlet hole communicates with the cavity of the filter media cylinder.
[0008] Preferably, the upper cover and the lower cover are provided with annular grooves at their adjacent ends, and the filter media cartridge is inserted into the annular grooves and fixed with adhesive.
[0009] Furthermore, the filter media cartridge is made of an outer mesh, filter cotton, middle mesh, first protective cotton, filter media, second protective cotton, and inner mesh wound together.
[0010] Furthermore, conductive wires are installed between the lower cover and the inner wall of the filter media cylinder.
[0011] Furthermore, multiple hollow tubes are fixedly connected to both the inner and outer sides of the grille. Multiple air holes are opened on the side of the hollow tubes away from the grille. A collecting pipe is fixedly connected to one end of the grille near the lower cover. A connecting pipe is fixedly connected to the other side of the collecting pipe. The other end of the connecting pipe passes through the lower cover and is threaded with a sealing cap.
[0012] Furthermore, the stomata have a conical structure, with the end of the stomata furthest from the central mesh gradually increasing in size.
[0013] Furthermore, a groove is provided on the side of the lower cover away from the filter media cylinder, and a sealing cap is located inside the groove. A wrench groove is provided on the other side of the sealing cap.
[0014] (3) Beneficial effects
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] When installing this utility model, the mounting base of the oil mist separator filter element is inserted into the mounting hole of the equipment. Since one end of the mounting base has an external thread, the oil mist separator filter element can be spirally inserted into the mounting hole of the equipment. The operation steps are very simple. At the same time, the mounting base can squeeze the sealing ring in the annular groove into the mounting hole, thereby increasing the sealing between the oil mist separator filter and the equipment and avoiding affecting the effect of the oil mist separator filter element.
[0017] This invention involves inserting a wrench into the wrench slot, then turning the wrench to unscrew the sealing cap. High-pressure air is then introduced into the connecting pipe, passing through the connecting pipe and the collecting pipe before entering the hollow tube. Simultaneously, the high-pressure gas is blown from multiple air holes on the hollow tube onto the filter screen inside the filter media cartridge, removing surface dust. This allows for cleaning of the filter media cartridge without disassembly, shortening the steps required for cleaning and resulting in more even and convenient cleaning. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model.
[0019] Figure 2 This is a cross-sectional structural diagram of Embodiment 1 of this utility model.
[0020] Figure 3 This is the utility model Figure 3 A magnified structural diagram of point A in the middle.
[0021] Figure 4 This is a three-dimensional structural diagram of Embodiment 2 of this utility model.
[0022] Figure 5 This is a cross-sectional structural diagram of Embodiment 2 of this utility model.
[0023] Figure 6 This is the utility model Figure 3 A magnified structural diagram at point B in the middle.
[0024] Figure 7 This is a three-dimensional structural diagram of the grille of this utility model.
[0025] The markings in the attached diagram are as follows: 1. Top cover; 2. Bottom cover; 3. Filter media cylinder; 4. Mounting base; 5. Mounting groove; 6. Sealing ring; 7. External thread; 8. Liquid inlet hole; 9. Annular groove; 10. Conductive wire; 11. Hollow tube; 12. Air hole; 13. Manifold; 14. Connecting tube; 15. Sealing cap; 16. Groove; 17. Wrench groove; 301. Outer mesh; 302. Filter cotton; 303. Middle mesh; 304. First protective cotton; 305. Filter media; 306. Second protective cotton; 307. Inner mesh. Detailed Implementation
[0026] Example 1
[0027] This specific embodiment is a threaded connection oil mist separator filter element with high sealing performance, and its structural schematic diagram is shown below. Figures 1-3 As shown, the filter element includes an upper cover 1 and a lower cover 2. A filter media cylinder 3 is disposed between the upper cover 1 and the lower cover 2. One end of the filter media cylinder 3 is inserted into the upper cover 1, and the other end of the filter media cylinder 3 is inserted into the lower cover 2. A mounting base 4 is fixedly connected to the end of the upper cover 1 away from the filter media cylinder 3. An annular mounting groove 5 is opened on the outer surface of the end of the mounting base 4 near the filter media cylinder 3. A sealing ring 6 is installed inside the mounting groove 5. The sealing ring 6 is made of fluororubber. An external thread 7 is opened on the outer surface of the other end of the mounting base 4. An inlet hole 8 is opened axially on the mounting base 4. The inlet hole 8 communicates with the cavity of the filter media cylinder 3. Oil enters into the filter media cylinder 3 from the inlet hole 8 and is filtered and discharged by the filter media cylinder 3.
[0028] During installation, the mounting base 4 of the oil mist separator filter element is inserted into the mounting hole of the equipment. Since one end of the mounting base 4 has an external thread 7, the oil mist separator filter element can be spirally inserted into the mounting hole of the equipment by the mounting base 4. The operation steps are very simple. At the same time, the mounting base 4 can squeeze the sealing ring 6 in the annular groove 9 into the mounting hole, thereby increasing the sealing between the oil mist separator filter and the equipment and avoiding affecting the effect of the oil mist separator filter element.
[0029] like Figure 2As shown: In this embodiment, the upper cover 1 and the lower cover 2 are both provided with annular grooves 9 at their close ends. The filter media cylinder 3 is inserted into the annular grooves 9 and fixed by adhesive. The upper cover 1 and the lower cover 2 are made of aluminum alloy.
[0030] like Figure 2 and Figure 3 As shown: In this embodiment, the filter media cylinder 3 is formed by winding an outer mesh 301, filter cotton 302, middle mesh 303, first protective cotton 304, filter media 305, second protective cotton 306 and inner mesh 307. The outer mesh 301, middle mesh 303 and inner mesh 307 are galvanized plates, the filter cotton 302 is made of PE material, and the first protective cotton 304 and second protective cotton 306 are made of T20 non-woven fabric.
[0031] like Figure 2 As shown: In this embodiment, a conductive wire 10 is installed between the lower cover 2 and the inner wall of the filter media cylinder 3. The conductive wire 10 is made of stainless steel.
[0032] Example 2
[0033] like Figure 4-7 As shown, unlike Embodiment 1, multiple hollow tubes 11 are fixedly connected to both the inner and outer sides of the grille 303. Multiple air holes 12 are opened on the side of the hollow tubes 11 away from the grille 303. A collecting pipe 13 is fixedly connected to one end of the grille 303 near the lower cover 2. A connecting pipe 14 is fixedly connected to the other side of the collecting pipe 13. The other end of the connecting pipe 14 passes through the lower cover 2 and is threaded with a sealing cap 15. The hollow tubes 11 are evenly distributed around the inner and outer sides of the grille 303. After the high-pressure gas is introduced into the interior of the connecting pipe 14, the high-pressure gas passes through the connecting pipe 14 and the collecting pipe 13 and enters the hollow tube 11.
[0034] like Figure 5 and Figure 6 As shown: In this embodiment, the air hole 12 has a conical structure, and the end of the air hole 12 away from the central mesh 303 gradually increases in size; in this way, high-pressure air can be blown from the multiple air holes 12 on the hollow tube 11 to the filter screen inside the filter media cylinder 3.
[0035] like Figure 6 and Figure 7 As shown: In this embodiment, a groove 16 is provided on the side of the lower cover 2 away from the filter media cylinder 3, and a sealing cap 15 is located inside the groove 16. A wrench groove 17 is provided on the other side of the sealing cap 15. By inserting a wrench into the wrench groove 17, the sealing cap 15 can be unscrewed by rotating the wrench. The sealing cap 15 is located inside the groove 16 and will not protrude from the surface of the lower cover 2. There is a sealing gasket between the sealing cap 15, the connecting pipe 14, and the inner wall of the groove 16.
[0036] Working principle: During installation, the mounting base 4 of the oil mist separator filter element is inserted into the mounting hole of the equipment. Since one end of the mounting base 4 has an external thread 7, the oil mist separator filter element can be spirally inserted into the mounting hole by the mounting base 4. The operation is very simple. Simultaneously, the mounting base 4 allows the sealing ring 6 in the annular groove 9 to be squeezed into the mounting hole, thereby increasing the sealing between the oil mist separator filter and the equipment and preventing any impact on the filter element's performance. During use, oil enters the filter media cartridge 3 through the inlet hole 8 and is filtered and discharged by the cartridge. As the oil is used... The cleaning process extends the time required for cleaning the inner and outer surfaces of the filter media cartridge 3. Simply insert a wrench into the wrench slot 17, turn the wrench to unscrew the sealing cap 15, and then introduce external high-pressure air into the connecting pipe 14. The high-pressure gas passes through the connecting pipe 14 and the collecting pipe 13 and enters the hollow pipe 11. At the same time, it blows through multiple air holes 12 on the hollow pipe 11 onto the filter screen inside the filter media cartridge 3 and blows away the dust on the surface. Thus, the filter media cartridge 3 can be cleaned without disassembly, shortening the steps required for cleaning the filter media cartridge 3, and making the cleaning more uniform and convenient.
[0037] All technical features in this embodiment can be freely combined according to actual needs.
[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A threaded connection oil mist separator filter element with high sealing performance, the filter element comprising an upper cover (1) and a lower cover (2), characterized in that: A filter media cylinder (3) is provided between the upper cover (1) and the lower cover (2). One end of the filter media cylinder (3) is inserted into the upper cover (1), and the other end of the filter media cylinder (3) is inserted into the lower cover (2). A mounting base (4) is fixedly connected to the end of the upper cover (1) away from the filter media cylinder (3). An annular mounting groove (5) is opened on the outer surface of the end of the mounting base (4) close to the filter media cylinder (3). A sealing ring (6) is installed inside the mounting groove (5). An external thread (7) is opened on the outer surface of the other end of the mounting base (4). An inlet hole (8) is opened in the axial direction of the mounting base (4). The inlet hole (8) is connected to the cavity of the filter media cylinder (3).
2. The threaded connection oil mist separator filter element with high sealing performance according to claim 1, characterized in that, The upper cover (1) and the lower cover (2) are both provided with annular grooves (9) at their close ends. The filter material cylinder (3) is inserted into the annular grooves (9) and fixed by adhesive.
3. The threaded connection oil mist separator filter element with high sealing performance according to claim 2, characterized in that, The filter media cylinder (3) is formed by winding an outer net (301), filter cotton (302), middle net (303), first protective cotton (304), filter media (305), second protective cotton (306) and inner net (307).
4. The threaded connection oil mist separator filter element with high sealing performance according to claim 3, characterized in that, A conductive wire (10) is installed between the lower cover (2) and the inner wall of the filter media cylinder (3).
5. The threaded connection oil mist separator filter element with high sealing performance according to claim 3, characterized in that, Multiple hollow tubes (11) are fixedly connected to both the inner and outer sides of the central mesh (303). Multiple air holes (12) are opened on the side of the hollow tubes (11) away from the central mesh (303). A collecting pipe (13) is fixedly connected to one end of the central mesh (303) near the lower cover (2). A connecting pipe (14) is fixedly connected to the other side of the collecting pipe (13). The other end of the connecting pipe (14) passes through the lower cover (2) and is threaded with a sealing cap (15).
6. The threaded connection oil mist separator filter element with high sealing performance according to claim 5, characterized in that, The vent (12) has a conical structure, and the end of the vent (12) away from the center mesh (303) gradually increases in size.
7. The threaded connection oil mist separator filter element with high sealing performance according to claim 6, characterized in that, The lower cover (2) has a groove (16) on the side away from the filter media cylinder (3), the sealing cap (15) is located inside the groove (16), and the other side of the sealing cap (15) has a wrench groove (17).