A flange filter with replaceable screen

Abstract

The utility model discloses a flange filter with replaceable filter screen, including filter main part, the outer surface fixed communication of filter main part has fixed tube, the inside of fixed tube is equipped with the fixed groove that sets up, the inner wall of filter main part sets up the recess, the inner bottom wall fixed connection of recess has the compression spring of equidistance arrangement, the inner bottom wall fixed connection of recess has the damper of relative symmetry, the top of each compression spring is commonly fixed connection has the flow -coiled wire, the upper surface of flow -coiled wire sets up and has filter mechanism, filter mechanism includes seal groove, the inside of seal groove is equipped with filter drum. The cooperation of positioning groove and pressure ring can press the filter drum, increase the stability of filter drum clamping, utilize the cooperation of buckle plate and pull block, fasten the filter drum conveniently, further convenient for the filter drum to dismantle, the filter drum is convenient for dismantling and cleaning or replacement, and the maintenance cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of flange filters, and in particular to a flange filter with replaceable filter screen. Background Technology

[0002] A flange, also called a flange plate or flange, is a part used to connect shafts to each other, and is used to connect pipe ends. There are also flanges used on equipment inlets and outlets to connect two pieces of equipment, such as a speed reducer flange. Any connecting part that uses bolts to connect and seal the periphery of two planes is generally called a "flange", such as the connection of ventilation ducts. This type of part can be called a "flange part". Flanges are usually welded to the circumference of the end of a pipe to connect pipes, valves and shafts together.

[0003] Filters are an indispensable device in pipelines transporting media. They are typically installed at the inlet end of pressure reducing valves, pressure relief valves, level control valves, and other equipment. A filter consists of a cylinder, a stainless steel filter screen, a drain section, a transmission device, and an electrical control system. Currently, most flange filters use a fixed connection between the filter screen and the filter body, making it impossible to disassemble, clean, or replace the screen. After prolonged use, the screen is prone to clogging or damage, leading to filter failure and requiring complete replacement, resulting in high maintenance costs. Therefore, we propose a flange filter with a replaceable filter screen to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a flange filter with replaceable filter screen to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flange filter with replaceable filter screen includes a filter body. A fixing pipe is fixedly connected to the outer surface of the filter body. A fixing groove is provided inside the fixing pipe. A groove is provided on the inner wall of the filter body. Compression springs arranged at equal intervals are fixedly connected to the inner bottom wall of the groove. A symmetrical damper is fixedly connected to the inner bottom wall of the groove. A flow guide ring is fixedly connected to the top of each compression spring. A filtering mechanism is provided on the upper surface of the flow guide ring. The filtering mechanism includes a sealing groove. A filter cylinder is provided inside the sealing groove. A sealing ring is fixedly connected to the bottom end of the filter cylinder. A filter sheet is provided inside the filter cylinder.

[0007] In a further embodiment, both ends of the filter body are fixedly connected to a first flange, and a first sealing ring is provided on the side of the two first flanges that are far apart from each other.

[0008] In a further embodiment, a second flange is fixedly connected to the right end of the fixed pipe, and a limiting groove is formed on the right side of the second flange, with a sealing gasket provided inside the limiting groove.

[0009] In a further embodiment, a positioning groove is provided on the inner wall of the fixing tube, and a pressure ring is provided inside the positioning groove.

[0010] In a further embodiment, the upper surface of the pressure ring is provided with a buckle plate, and a pull block is fixedly connected to the upper surface of the buckle plate.

[0011] In a further embodiment, a second sealing ring is provided on the right side of the second flange, and the filter sheet is cross-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device enhances the sealing of the second flange connection through the combination of sealing gaskets and limiting grooves. The combination of compression springs and dampers provides cushioning for the filter cartridge, facilitating installation. The filter cartridge and filter discs work together to filter impurities in the fluid. The positioning groove and pressure ring compress the filter cartridge, increasing the stability of the connection. The fastening plate and pull block facilitate secure fastening of the filter cartridge and further simplify disassembly, cleaning, or replacement, thus reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a flange filter with replaceable filter screen.

[0015] Figure 2 This is a cross-sectional view of the filter body in a flange filter with replaceable filter screen.

[0016] Figure 3 This is a side sectional view of the fixed pipe in a flange filter with replaceable filter screen.

[0017] Figure 4 This is a side sectional view of the filter body in a flange filter with replaceable filter screen.

[0018] Figure 5 Flange filter with replaceable filter screen Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Filter body; 2. Filter mechanism; 201. Sealing groove; 202. Filter cylinder; 203. Sealing ring; 204. Filter disc; 3. Fixing pipe; 4. First flange; 5. First sealing ring; 6. Groove; 7. Compression spring; 8. Damper; 9. Flow guide ring; 10. Positioning groove; 11. Pressure ring; 12. Buckle plate; 13. Fixing groove; 14. Second sealing ring; 15. Pull block; 16. Second flange; 17. Limiting groove; 18. Sealing gasket. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

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

[0023] Please see Figure 1-5In this utility model, a flange filter with replaceable filter screen includes a filter body 1. A fixing pipe 3 is fixedly connected to the outer surface of the filter body 1. A fixing groove 13 is provided inside the fixing pipe 3. A groove 6 is provided on the inner wall of the filter body 1. Compression springs 7 arranged at equal intervals are fixedly connected to the inner bottom wall of the groove 6. A symmetrical damper 8 is fixedly connected to the inner bottom wall of the groove 6. A flow guide ring 9 is fixedly connected to the top of each compression spring 7. A filter mechanism 2 is provided on the upper surface of the flow guide ring 9. The filter mechanism 2 includes a sealing groove 201. A filter cylinder 202 is provided inside the sealing groove 201. A sealing ring 203 is fixedly connected to the bottom end of the filter cylinder 202. A filter sheet 204 is provided inside the filter cylinder 202. Through the cooperation of the compression springs 7 and the damper 8, the filter cylinder 202 can be buffered, making it convenient for the staff to install the filter cylinder 202. By using the cooperation of the filter cylinder 202 and the filter sheet 204, impurities in the fluid can be filtered.

[0024] Both ends of the filter body 1 are fixedly connected to a first flange 4. The two first flanges 4 are provided with a first sealing ring 5 on the side away from each other. The right end of the fixed pipe 3 is fixedly connected to a second flange 16. A limiting groove 17 is opened on the right side of the second flange 16. A sealing gasket 18 is provided inside the limiting groove 17. A second sealing ring 14 is provided on the right side of the second flange 16. The filter sheet 204 is cross-shaped. The first flange 4 and the first sealing ring 5 are used to facilitate the connection of the filter body 1. The second flange 16 and the second sealing ring 14 are used to facilitate the connection of the fixed pipe 3. The sealing gasket 18 and the limiting groove 17 are used to increase the sealing performance of the second flange 16 connection.

[0025] The inner wall of the fixed tube 3 is provided with a positioning groove 10, and a pressure ring 11 is provided inside the positioning groove 10. A buckle plate 12 is provided on the upper surface of the pressure ring 11, and a pull block 15 is fixedly connected to the upper surface of the buckle plate 12. Through the cooperation of the positioning groove 10 and the pressure ring 11, the filter cylinder 202 can be pressed, which increases the stability of the filter cylinder 202 snapping. The cooperation of the buckle plate 12 and the pull block 15 makes it easy to fasten the filter cylinder 202 and further facilitates the disassembly of the filter cylinder 202.

[0026] The working principle of this utility model is as follows:

[0027] In use, the first flange 4 and the first sealing ring 5 are used to facilitate the connection of the filter body 1. The second flange 16 and the second sealing ring 14 are used to facilitate the connection of the fixed pipe 3. The sealing gasket 18 and the limiting groove 17 are used to increase the sealing performance of the second flange 16 connection. Then, the compression spring 7 and the damper 8 are used to buffer the filter cylinder 202, making it easier for the operator to install the filter cylinder 202. The filter cylinder 202 and the filter sheet 204 are used to filter impurities in the fluid. The positioning groove 10 and the pressure ring 11 are used to press the filter cylinder 202, increasing the stability of the filter cylinder 202 snap-fit. The buckle plate 12 and the pull block 15 are used to facilitate the fastening of the filter cylinder 202, further facilitating the disassembly of the filter cylinder 202.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flange filter with replaceable filter screen, characterized in that: The filter includes a filter body (1), the outer surface of which is fixedly connected to a fixed tube (3), the inside of which is provided with a fixed groove (13), the inner wall of which is provided with a groove (6), the inner bottom wall of which is fixedly connected with compression springs (7) arranged at equal intervals, the inner bottom wall of which is fixedly connected with a symmetrical damper (8), the top of each compression spring (7) is fixedly connected with a guide ring (9), the upper surface of which is provided with a filter mechanism (2), the filter mechanism (2) includes a sealing groove (201), the inside of which is provided with a filter cylinder (202), the bottom end of which is fixedly connected with a sealing ring (203), and the inside of which is provided with a filter plate (204).

2. The flange filter with replaceable filter screen according to claim 1, characterized in that: Both ends of the filter body (1) are fixedly connected to a first flange (4), and a first sealing ring (5) is provided on the side of the two first flanges (4) that are far apart from each other.

3. A flange filter with replaceable filter screen according to claim 1, characterized in that: The right end of the fixed pipe (3) is fixedly connected to a second flange (16), and a limiting groove (17) is opened on the right side of the second flange (16). A sealing gasket (18) is provided inside the limiting groove (17).

4. A flange filter with replaceable filter screen according to claim 1, characterized in that: The inner wall of the fixed tube (3) is provided with a positioning groove (10), and a pressure ring (11) is provided inside the positioning groove (10).

5. A flange filter with replaceable filter screen according to claim 4, characterized in that: The upper surface of the pressure ring (11) is provided with a buckle plate (12), and a pull block (15) is fixedly connected to the upper surface of the buckle plate (12).

6. A flange filter with replaceable filter screen according to claim 3, characterized in that: The second flange (16) has a second sealing ring (14) on its right side, and the filter (204) is cross-shaped.

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