Novel high-pressure filter

Abstract

The utility model discloses a novel high pressure filter relates to filter technical field, including barrel, filter cartridge, filter element, filter cartridge joint, thread bushing, lead screw, nut and locating sleeve, the upper end of filter cartridge is provided with the filter cartridge joint, the lower end of barrel is rotatablely provided with the thread bushing, the inner wall of thread bushing protrudes to form convex ring, and the locating sleeve is provided with the screw rod. The convex ring is in threaded connection with the upper end of the filter cartridge connector, a lead screw is arranged in the cartridge body, the positioning sleeve is arranged on the periphery of the lead screw, the nut is in threaded connection with the outer wall of the lead screw, and the filter element is arranged between the positioning sleeve and the nut. According to the utility model, the filter cartridge joint, the threaded sleeve, the screw rod, the nut and the positioning sleeve are matched with one another, so that the filter element can be quickly disassembled and assembled, and the time for assembling and disassembling the filter element can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a novel high-pressure filter. Background Art

[0002] Filters are widely used to filter solid impurities in the medium in pipelines, avoiding impurities from entering key equipment and damaging the equipment or affecting the process purity. In the past, due to the limitation of the filter mesh structure design, filters usually could not be used in high-pressure working conditions, and the applicable pressure was not more than 4.0 MPa.

[0003] The high-pressure filter in the prior art includes a valve body and a valve cover. The valve cover is fixed on the valve body. A medium inflow channel and a medium outflow channel are arranged in the valve body. A filter channel is arranged between the medium inflow channel and the medium outflow channel. A filter cartridge is installed in the filter channel. Both ends of the filter cartridge are fixed in the filter channel through an upper end ring and a lower end ring respectively. The valve cover is arranged at the end of the lower end ring and is fixed to the valve body. The barrel wall of the filter cartridge includes an outer-layer stainless steel perforated plate, an intermediate-layer filter mesh, and an inner-layer stainless steel perforated plate that are sequentially adhered. A drain valve communicating with the filter channel is arranged on the valve cover.

[0004] However, in the prior art, the filter cartridge is installed in the valve body through the upper end ring and the lower end, and then the filter cartridge is fixed through structures such as the valve cover and bolts, resulting in inconvenient installation and disassembly of the filter cartridge. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a novel high-pressure filter to solve the above technical problems.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A novel high-pressure filter includes a cylinder body, a filter cartridge, a filter element, a filter cartridge joint, a threaded sleeve, a lead screw, a nut, and a positioning sleeve. The filter cartridge joint is arranged at the upper end of the filter cartridge. The threaded sleeve is rotatably arranged at the lower end of the cylinder body. A convex ring is formed on the inner wall of the threaded sleeve. The convex ring is threadedly connected to the upper end of the filter cartridge joint. A lead screw is arranged inside the cylinder body. A positioning sleeve is arranged around the lead screw. The nut is threadedly connected to the outer wall of the lead screw. The filter element is arranged between the positioning sleeve and the nut.

[0008] Preferably, it further includes a reducing tee and an upper end cover. The upper end cover is threadedly connected to the upper end of the cylinder body. The reducing tee is arranged at the lower end of the upper end cover. An air inlet is arranged on one side of the cylinder body. An air outlet is arranged on the other side of the cylinder body. The air inlet is communicated with one inlet of the reducing tee. The air outlet is communicated with the inner cavity of the cylinder body. The upper end of the lead screw is connected to the lower end of the upper end cover. The lead screw passes through the reducing tee.

[0009] As a further preference, the upper end of the positioning sleeve abuts against the lower end outlet of the reducing tee, and the lower end of the positioning sleeve abuts against the upper end of the filter element.

[0010] As a preference, a positioning groove is formed on the inner wall of the positioning sleeve, a joint is formed by the upward protrusion of the middle part of the upper end of the filter element, and the joint is inserted into the positioning groove.

[0011] As a preference, it further includes a lower end cover. The lower end of the filter cartridge is provided with the lower end cover. A sewage discharge pipe is provided at the lower end of the lower end cover. The sewage discharge pipe is communicated with the inner cavity of the filter cartridge, and a manual valve is provided on the sewage discharge pipe.

[0012] As a preference, it further includes a first sealing ring, and the first sealing ring is arranged between the threaded sleeve and the cylinder body.

[0013] As a preference, it further includes a second sealing ring, and the second sealing ring is arranged between the threaded sleeve and the filter cartridge.

[0014] As a preference, it further includes a third sealing ring. The third sealing ring includes a first sealing part and a second sealing part which are integrally connected. The first sealing part is located between the threaded sleeve and the filter cartridge joint, and the second sealing part is located between the cylinder body and the filter cartridge joint.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the present utility model, through the mutual cooperation among the filter cartridge joint, the threaded sleeve, the lead screw, the nut and the positioning sleeve, the rapid disassembly and installation of the filter element can be realized quickly, and the time for installing and disassembling the filter element can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the novel high-pressure filter in the present utility model;

[0018] Figure 2 is Figure 1 the cross-sectional view taken along the line A-A in

[0019] Figure 3 is the perspective view of the novel high-pressure filter in the present utility model;

[0020] Figure 4 is Figure 2 the enlarged view at position B in

[0021] In the figure: 1. Cylinder body; 2. Filter cartridge; 3. Filter element; 4. Filter cartridge joint; 5. Threaded sleeve; 6. Lead screw; 7. Nut; 8. Positioning sleeve; 9. Convex ring; 10. Air inlet; 11. Air outlet; 12. Reducing tee; 13. Upper end cover; 14. Lower end cover; 15. Drain pipe; 16. Manual valve; 17. First sealing ring; 18. Second sealing ring; 19. Third sealing ring; 20. First sealing part; 21. Second sealing part. Detailed implementation manners

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Figure 1 is the front view of the novel high-pressure filter in the present utility model; Figure 2 is Figure 1 the sectional view taken along the A-A direction in Figure 3 is the perspective view of the novel high-pressure filter in the present utility model; Figure 4 is Figure 2 the enlarged view at B in Figures 1 to 4As shown, a preferred embodiment is shown, which is a new type of high-pressure filter, including a cylinder body 1, a filter cartridge 2, a filter element 3, a filter cartridge joint 4, a threaded sleeve 5, a lead screw 6, a nut 7 and a positioning sleeve 8. A filter cartridge joint 4 is provided at the upper end of the filter cartridge 2. A threaded sleeve 5 is rotatably provided at the lower end of the cylinder body 1. A convex ring 9 is formed by a convexity on the inner wall of the threaded sleeve 5. The convex ring 9 is threadedly connected to the upper end of the filter cartridge joint 4. A lead screw 6 is provided inside the cylinder body 1. A positioning sleeve 8 is provided around the lead screw 6. A nut 7 is threadedly connected to the outer wall of the lead screw 6. A filter element 3 is provided between the positioning sleeve 8 and the nut 7. In this embodiment, refer to Figure 1 As shown, an air inlet 10 is provided on one side of the cylinder body 1, and an air outlet 11 is provided on the other side of the cylinder body 1. The air inlet 10 is used to pump compressed air into the filter element 3. After being filtered by the filter element 3, the impurities in the compressed air are filtered out to obtain pure gas. The pure gas is then discharged through the air outlet 11. The compressed air contains water vapor and impurities. Water droplets are easily generated when the water vapor contacts the filter element 3. After the impurities and water are mixed, they will drip onto the bottom of the filter cartridge 2.

[0026] Among them, the filter cartridge joint 4 is welded to the upper end of the filter cartridge 2, and the threaded sleeve 5 is threadedly connected to the filter cartridge joint 4. By rotating the threaded sleeve 5, the installation or disassembly between the threaded sleeve 5 and the filter cartridge joint 4 can be realized. After the filter cartridge 2 is removed, by rotating the nut 7, the filter element 3 can be directly removed from or installed on the lead screw 6, and the quick installation or disassembly of the filter element 3 can be realized.

[0027] Furthermore, as a preferred implementation manner, it further includes a reducing tee 12 and an upper end cover 13. The upper end of the cylinder body 1 is threadedly connected to the upper end cover 13. A reducing tee 12 is provided at the lower end of the upper end cover 13. The air inlet 10 is communicated with one inlet of the reducing tee 12. The air outlet 11 is communicated with the inner cavity of the cylinder body 1. The upper end of the lead screw 6 is connected to the lower end of the upper end cover 13. The lead screw 6 passes through the reducing tee 12. Among them, the upper end of the reducing tee 12 is connected to the lower end of the upper end cover 13 to seal the inlet at the upper end of the reducing tee 12. Compressed air enters through the inlet on the right side of the reducing tee 12, then enters into the filter element 3 through the outlet at the lower end of the reducing tee 12, and is discharged through the air outlet 11 after being filtered by the filter element 3. Refer to Figure 2 As shown, the inlet on the right side of the reducing tee 12 extends into the air inlet 10 and is communicated with the air inlet 10. The upper end of the lead screw 6 is threadedly connected or directly welded to the upper end cover 13.

[0028] Further, as a preferred embodiment, the upper end of the positioning sleeve 8 abuts against the lower end outlet of the reducing tee 12, and the lower end of the positioning sleeve 8 abuts against the upper end of the filter element 3. Among them, the positioning sleeve 8 is movably sleeved around the screw rod 6. When installing the filter element 3, by tightening the nut 7, the nut 7 is pushed to move the filter element 3 upward, and the filter element 3 will push the positioning sleeve 8 upward until the upper end of the positioning sleeve 8 abuts against the reducing tee 12. A positioning groove is formed on the inner wall of the positioning sleeve 8, and a joint is formed by the upward protrusion in the middle of the upper end of the filter element 3. The joint is inserted into the positioning groove, which can position the upper end of the filter element 3.

[0029] Further, as a preferred embodiment, it further includes a lower end cover 14. The lower end of the filter cartridge 2 is provided with a lower end cover 14. A sewage discharge pipe 15 is provided at the lower end of the lower end cover 14. The sewage discharge pipe 15 is communicated with the inner cavity of the filter cartridge 2, and a manual valve 16 is provided on the sewage discharge pipe 15. Among them, the lower end cover 14 and the lower end of the filter cartridge 2 can be threadedly connected. A through hole is provided in the middle of the lower end cover 14. The upper end of the sewage discharge pipe 15 is arranged in the through hole and can be welded or sealed with the through hole through a sealing ring. The water droplets of the mixed impurities dripping along the filter element 3 will drip on the bottom of the filter cartridge 2, and then the manual valve 16 can be manually opened to discharge the sewage inside the filter cartridge 2.

[0030] Further, as a preferred embodiment, it further includes a first sealing ring 17. The first sealing ring 17 is arranged between the threaded sleeve 5 and the cylinder body 1. See Figure 2 and Figure 4 As shown, among them, the first sealing ring 17 is provided for the seal between the threaded sleeve 5 and the cylinder body 1. A spline-shaped protrusion structure is arranged on the inner wall of the upper end of the threaded sleeve 5, and a spline-shaped groove structure matching with the protrusion structure is arranged on the outer wall of the lower end of the cylinder body 1. The protrusion structure can rotate in the groove structure. Without affecting the rotation of the threaded sleeve 5, it can also prevent the threaded sleeve 5 from separating from the cylinder body 1.

[0031] Further, as a preferred embodiment, it further includes a second sealing ring 18. The second sealing ring 18 is arranged between the threaded sleeve 5 and the filter cartridge 2. See Figure 4 As shown, an installation groove is arranged on the outer wall of the upper end of the filter cartridge 2. The second sealing ring 18 is arranged in the installation groove. After the filter cartridge 2 is connected to the threaded sleeve 5, the inner wall of the lower end of the threaded sleeve 5 can squeeze the second sealing ring 18 to achieve a sealing effect.

[0032] Further, as a preferred embodiment, it further includes a third sealing ring 19. The third sealing ring 19 includes a first sealing portion 20 and a second sealing portion 21 which are integrally connected. The first sealing portion 20 is located between the threaded sleeve 5 and the filter cartridge joint 4, and the second sealing portion 21 is located between the cylinder body 1 and the filter cartridge joint 4. See Figure 4As shown, the third sealing ring 19 includes a first sealing portion 20 and a second sealing portion 21, which can achieve the sealing between the filter cartridge joint 4 and the threaded sleeve 5, and at the same time can also achieve the sealing between the cylinder body 1 and the filter cartridge joint 4, improving the sealing effect.

[0033] See Figure 4 As shown, after the threaded sleeve 5 is threadedly connected to the upper end of the filter cartridge joint 4, at least part of the convex ring 9 will squeeze the first sealing portion 20.

[0034] During use, compressed air enters the reducing tee 12 from the air inlet 10, and then enters the filter element 3 for filtration. The filtered impurities will be mixed with water droplets and drip onto the bottom of the filter cartridge 2. The filtered compressed air will be discharged from the air outlet 11. When sewage discharge is required, just open the manual valve 16.

[0035] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of high pressure filter, characterized in that: It includes a barrel, a filter barrel, a filter element, a filter barrel joint, a threaded sleeve, a screw rod, a nut and a positioning sleeve. The upper end of the filter barrel is provided with the filter barrel joint, the lower end of the barrel is rotatably provided with the threaded sleeve, the inner wall of the threaded sleeve protrudes to form a convex ring, and the convex ring is threadedly connected to the upper end of the filter barrel joint. The inside of the barrel is provided with a screw rod, the periphery of the screw rod is provided with the positioning sleeve, the outer wall of the screw rod is threadedly connected with the nut, and the filter element is provided between the positioning sleeve and the nut.

2. The novel high pressure filter according to claim 1, characterized in that: It also includes a reducing tee and an upper end cover, the upper end of the cylinder is threadedly connected to the upper end cover, the lower end of the upper end cover is provided with the reducing tee, one side of the cylinder is provided with an air inlet, the other side of the cylinder is provided with an air outlet, the air inlet is communicated with an inlet of the reducing tee, the air outlet is communicated with the inner cavity of the cylinder, the upper end of the screw rod is connected to the lower end of the upper end cover, and the screw rod passes through the reducing tee.

3. The novel high pressure filter according to claim 2, characterized in that: The upper end of the positioning sleeve abuts against the lower end outlet of the reducing tee, and the lower end of the positioning sleeve abuts against the upper end of the filter element.

4. The novel high pressure filter according to claim 1, characterized in that: A positioning groove is provided on the inner wall of the positioning sleeve, and the middle part of the upper end of the filter element protrudes upward to form a joint, and the joint is inserted into the positioning groove.

5. The novel high pressure filter according to claim 1, characterized in that: It also includes a lower end cover, which is arranged at the lower end of the filter cartridge, and a sewage pipe is arranged at the lower end of the lower end cover, the sewage pipe is connected with the inner cavity of the filter cartridge, and a manual valve is arranged on the sewage pipe.

6. The novel high pressure filter according to claim 1, characterized in that: It also includes a first sealing ring, which is arranged between the threaded sleeve and the cylinder.

7. The novel high pressure filter according to claim 1, characterized in that: It also includes a second sealing ring, which is arranged between the threaded sleeve and the filter cartridge.

8. The novel high pressure filter according to claim 1, characterized in that: It also includes a third sealing ring, which includes a first sealing portion and a second sealing portion that are integrally connected, the first sealing portion is located between the threaded sleeve and the filter cartridge joint, and the second sealing portion is located between the cylinder body and the filter cartridge joint.

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