Flange filter valve

Abstract

This application relates to the technical field of valves. A flanged filter valve includes a valve body, which comprises a main body and flanges. Two flanges are connected to the outer periphery of the main body and are symmetrically distributed along the axis of the main body. The two ends of the flanges along the axial direction are welded and fixed to the outer wall of the main body. The main body and flanges are manufactured separately, and then the flanges are fitted onto the outer periphery of the main body. The valve body is manufactured by circumferentially welding the two ends of the flanges to the connecting grooves on the outer wall of the main body. When the main body or any flange is damaged, that component can be replaced individually, thereby improving the service life of the valve body and reducing the production and operating costs of the filter valve.

Description

Technical Field

[0001] This application relates to the technical field of valves, and in particular to a flange filter valve. Background Technology

[0002] With the increasing prevalence of pipeline transportation, valves are inevitably used in pipeline transportation. In water or other liquid transportation pipelines, filter valves are often used to filter impurities in the liquid.

[0003] Existing filter valves typically have flanges at both ends of the valve body to allow for connection with external pipelines. Currently, filter valve bodies on the market are generally made using a one-piece casting method, and when the flanges are damaged, the entire valve body needs to be replaced, resulting in high production and operating costs for filter valves. Utility Model Content

[0004] In order to achieve separate manufacturing of the filter valve body and reduce the production and usage costs of the filter valve, this application provides a flange filter valve.

[0005] The flange filter valve provided in this application adopts the following technical solution:

[0006] A flanged filter valve includes a valve body, which comprises a main body and a flange. The flange is connected to the outer periphery of the main body. Two flanges are provided and are symmetrically distributed along the axis of the main body. The two ends of the flange along the axis of the flange are welded and fixed to the outer wall of the main body.

[0007] By adopting the above technical solution, the main body and flange are manufactured separately, and then the flange is fitted onto the outer periphery of the main body. The valve body is manufactured by circumferentially welding the connecting grooves of the two ends of the flange to the outer wall of the main body. When the main body or any flange is damaged, the component can be replaced separately, thereby improving the service life of the valve body and reducing the production and usage costs of the filter valve.

[0008] Preferably, the outer periphery of both ends of the main body along the main body axis is provided with annular grooves, the groove walls of the annular grooves are in contact with the inner wall of the flange, and the bottom of the annular grooves abuts against one end of the flange.

[0009] By adopting the above technical solution, it is helpful to achieve the initial fixation of the flange and the body along the axis and radial direction of the body, reduce the possibility of the flange moving relative to the body during the welding process, facilitate the welding and fixing of the flange and the body, and improve the convenience of valve body production.

[0010] Preferably, the end of the flange away from the other flange is flush with one end of the body, and the surface of the flange away from the other flange is provided with a groove for the sealing element to be embedded, and the groove is arranged around the body.

[0011] By adopting the above technical solution, the sealing element is embedded in the groove, and the flange abuts against the external pipe or connecting seat, reducing the possibility of liquid leakage from the connection between the flange and the external pipe or connecting seat in the filter valve, and improving the sealing performance of the connection between the valve body and the external pipe or connecting seat.

[0012] Preferably, the outer wall of the main body is provided with a gripping groove, and there are two gripping grooves, which are symmetrically distributed along a direction perpendicular to the axis of the main body.

[0013] By adopting the above technical solution, when welding the main body and the flange, the external positioning block can be embedded in the gripping groove to limit the main body, reduce the possibility of the main body moving in the direction during the welding process, improve the convenience of valve body production, and when handling, the operator can insert their fingers into the two gripping grooves to handle the valve body, thus improving the convenience of the filter valve.

[0014] Preferably, the device further includes a filter cartridge. The main body has a main channel, and the valve body also includes a side tube. One end of the side tube extends into the main channel. The side tube and the main body are integrally formed. The axis of the side tube is inclined to the axis of the main body. The side tube has a filter chamber. The end of the side tube near the main channel has a liquid inlet. The liquid inlet connects the filter chamber and the main channel. The filter chamber has a liquid outlet on one side wall near the main channel. The liquid outlet is connected to the main channel. The filter cartridge is embedded in the filter chamber, and the liquid inlet is located inside the filter cartridge.

[0015] By adopting the above technical solution, the filter cartridge is embedded in the filter chamber. The liquid enters the main channel and enters the inner side of the filter cartridge from the inlet. After being filtered by the filter cartridge and impurities are removed, the liquid flows to the outer side of the filter cartridge and then enters the main channel through the outlet, thus achieving the filtration of the liquid.

[0016] Preferably, it also includes a valve cover, wherein the end of the side tube away from the main body is provided with an installation groove, one end of the valve cover extends into the installation groove, the valve cover abuts against the end of the filter cartridge away from the liquid inlet, and the outer wall of the valve cover is threadedly connected to the wall of the installation groove.

[0017] By adopting the above technical solution and setting a valve cover, when the filter cartridge needs to be cleaned, the valve cover can be removed and the filter cartridge can be taken out of the filter chamber for cleaning, ensuring the filtration effect of the filter cartridge and improving the convenience of the filter valve.

[0018] Preferably, the filter chamber is drum-shaped, and the inlet is provided with a groove on the wall of the hole near one end of the filter chamber. One end of the filter cylinder abuts against the bottom of the groove, and the outer wall of the filter cylinder fits against the wall of the groove.

[0019] By adopting the above technical solution, one end of the filter cartridge is embedded in the groove, and the outer wall of the filter cartridge is in close contact with the groove wall, which improves the sealing performance between the filter cartridge and the inner wall of the valve body, reduces the possibility of impurities passing through the gap between the filter cartridge and the inner wall of the valve body, and ensures the filtration performance of the filter valve.

[0020] Preferably, a positioning ring is connected to the outer periphery of the valve cover, and the positioning ring is used to abut against the end of the side tube away from the main body.

[0021] By adopting the above technical solution, when the filter cartridge is installed in place, the positioning ring abuts against the end of the side tube, avoiding excessive pressure of the valve cover on the filter cartridge, which may lead to damage to the filter cartridge and improve the service life of the filter cartridge.

[0022] Preferably, it also includes a sealing ring, and a sealing groove is provided on the groove wall at the end of the mounting groove away from the main body. The sealing ring is embedded in the sealing groove, and the two ends of the sealing ring abut against the bottom of the sealing groove and the side surface of the positioning ring near the main body, respectively.

[0023] By adopting the above technical solution, the sealing ring is embedded in the sealing groove, which reduces the possibility of liquid leakage from the connection between the valve cover and the side pipe in the filter valve and improves the sealing performance between the valve cover and the valve body.

[0024] Preferably, a protrusion is connected to the end of the valve cover away from the main body, and the cross-section of the protrusion is hexagonal.

[0025] By adopting the above technical solution and setting hexagonal protrusions, operators can easily rotate the valve cover by using tools or by directly holding the side wall of the protrusion, thereby separating the valve cover from the valve body and improving the convenience of disassembling and assembling the filter valve.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The body and flange are manufactured separately, and then the flange is fitted onto the outer periphery of the body. The valve body is manufactured by circumferentially welding the two ends of the flange to the connecting groove of the outer wall of the body. When the body or any flange is damaged, the component can be replaced separately, which improves the service life of the valve body and reduces the production and use costs of the filter valve.

[0028] 2. It helps to initially fix the flange and body along the axis and radial direction of the body, reduces the possibility of the flange moving relative to the body during welding, facilitates the welding and fixing of the flange and body, and improves the convenience of valve body production;

[0029] 3. Embed the seal in the groove, and the flange abuts against the external pipe or connector to reduce the possibility of liquid leakage from the connection between the flange and the external pipe or connector, and improve the sealing performance of the connection between the valve body and the external pipe or connector. Attached Figure Description

[0030] Figure 1 This is a cross-sectional view of a flange filter valve.

[0031] Figure 2 This is a structural diagram of a flange filter valve.

[0032] Figure 3 This is an exploded structural diagram of a flange filter valve.

[0033] Figure 4 yes Figure 1 Enlarged view of point A in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Valve body; 11. Main body; 111. Annular groove; 112. Grip groove; 113. Main channel; 114. First chamfer; 115. Indicator arrow; 12. Flange; 121. Groove; 122. Second chamfer; 123. Clearance groove; 124. Mounting hole; 13. Side pipe; 131. Filter chamber; 132. Liquid inlet; 133. Liquid outlet; 134. Mounting groove; 135. Embedded groove; 136. Sealing groove;

[0036] 2. Filter cartridge;

[0037] 3. Valve cover; 31. Locating ring; 32. Protrusion;

[0038] 4. Sealing ring. Detailed Implementation

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] Reference Figure 1 This application discloses a flange filter valve including a valve body 1, which includes a main body 11 and a side pipe 13. The main body 11 has a main channel 113 coaxially arranged, which runs through the main body 11 along its axis. One end of the side pipe 13 extends into the main channel 113. The side pipe 13 is integrally formed with the main body 11, and its axis coincides with the axis of the main body 11 at surface A. The axis of the side pipe 13 is inclined to the axis of the main body 11. In this embodiment, the angle between the axis of the side pipe 13 and the axis of the main body 11 is 50°. The side pipe 13 has a filter chamber 131 coaxially arranged, which is drum-shaped. The end of the side pipe 13 near the main channel 113 has a liquid inlet 132 coaxially arranged, which connects the filter chamber 131 and the main channel 113. The filter chamber 131 has a liquid outlet 133 on the side wall near the main channel 113, which is connected to the main channel 113.

[0041] Reference Figure 2The outer wall of the main body 11, away from the side pipe 13, is provided with a gripping groove 112. There are two gripping grooves 112, which are located on both sides of surface A. An indicator arrow 115 is fixedly connected to the outer wall of the main body 11. The indicator arrow 115 extends from the side of the main channel 113 near the liquid inlet 132 to the side of the main channel 113 near the liquid outlet 133. There are two indicator arrows 115, which are located on both sides of surface A.

[0042] Reference Figure 1 and Figure 3 A flanged filter valve further includes a valve cover 3, a filter cartridge 2, and a sealing ring 4. A groove 135 is coaxially provided on the inner wall of the inlet 132 near the filter chamber 131. One end of the filter cartridge 2 abuts against the bottom of the groove 135, and the outer wall of the filter cartridge 2 is in contact with the wall of the groove 135. The inlet 132 is located inside the filter cartridge 2. A mounting groove 134 is coaxially provided on the end of the side tube 13 away from the main body 11. The mounting groove 134 communicates with the filter chamber 131, and there is a gap between the wall of the mounting groove 134 and the outer wall of the filter cartridge 2. One end of the valve cover 3 is embedded in the mounting groove 134, and the valve cover 3 abuts against the end of the filter cartridge 2 away from the bottom of the groove 135. The outer wall of the valve cover 3 is threadedly connected to the wall of the mounting groove 134. A positioning ring 31 is coaxially fixedly connected to the outer circumference of the valve cover 3 away from the filter cartridge 2. The surface of the positioning ring 31 near the filter cartridge 2 abuts against the end of the side tube 13 away from the main body 11. A protrusion 32 is fixedly connected to one end of the valve body 1 near the positioning ring 31. The cross-section of the protrusion 32 along the axis of the valve cover 3 is hexagonal. A sealing groove 136 is provided on the groove wall of the mounting groove 134 away from the main body 11. The sealing ring 4 is embedded in the sealing groove 136. One end of the sealing ring 4 abuts against the bottom of the sealing groove 136, and the other end of the sealing ring 4 abuts against the side surface of the positioning ring 31 near the side tube 13. The outer wall of the sealing ring 4 fits against the groove wall of the sealing groove 136, and the inner wall of the sealing ring 4 fits against the outer wall of the valve body 1.

[0043] Reference Figure 1 and Figure 4The main body 11 has annular grooves 111 on its outer periphery at both ends along the main axis. The valve body 1 also includes flanges 12, the number of which is the same as the number of annular grooves 111 and they correspond one-to-one. The inner side of the flange 12 is embedded in the annular groove 111, the axis of the flange 12 coincides with the axis of the main body 11, the inner wall of the flange 12 is in contact with the groove wall of the annular groove 111, one end of the flange 12 near the other flange 12 abuts against the bottom of the annular groove 111, and the other end of the flange 12 is flush with one end of the main body 11 along the axis of the main body 11. A first chamfer 114 is provided on the groove wall of the annular groove 111 away from the other annular groove 111. The first chamfer 114 is used to allow the end of the flange 12 near the other flange 12 to abut against each other. A second chamfer 122 is provided on the inner wall of the end of the flange 12 away from the other flange 12. The second chamfer 122 is welded and fixed between the first chamfer 114 and the end of the flange 12 near the other flange 12 and the bottom of the annular groove 111.

[0044] Reference Figure 2 and Figure 4 A clearance groove 123 is provided on the outer periphery of the end of the flange 12 furthest from the other flange 12. Several mounting holes 124 are provided at the bottom of the clearance groove 123, penetrating the flange 12 along its axis. The mounting holes 124 are circumferentially distributed around the flange 12 axis. In this embodiment, four mounting holes 124 are provided, evenly distributed around the flange 12 axis. Several grooves 121 are provided on the end of the flange 12 near the second chamfer 122. The grooves 121 are annular, with their centers coinciding with the flange 12 axis. The distances from the grooves 121 to the flange 12 axis are unequal. The grooves 121 are used for embedding seals, with the groove walls abutting against the outer wall of the seal. In this embodiment, three grooves 121 are provided, with a V-shaped cross-section.

[0045] The implementation principle of a flange filter valve according to an embodiment of this application is as follows: During the production of valve body 1, the main body 11 and filter cylinder 2 are integrally formed. Then, the end of flange 12 away from the second chamfer 122 is abutted against the first chamfer 114, so that flange 12 is embedded in an annular groove 111. The inner wall of flange 12 is in contact with the groove wall of annular groove 111, and the end of flange 12 away from the second chamfer 122 abuts against the bottom of annular groove 111. The two ends of flange 12 along the axial direction of flange 12 are welded and fixed to the outer wall of main body 11.

[0046] During assembly, the filter cartridge 2 is embedded in the filter chamber 131, and the sealing ring 4 is fitted around the outer circumference of the valve cover 3. One end of the valve cover 3 abuts against the end of the filter cartridge 2 away from the main body 11. The valve cover 3 is rotated so that the valve cover 3 is threadedly connected to the wall of the mounting groove 134. The filter cartridge 2 is embedded in the groove 135, and the outer wall of the filter cartridge 2 fits against the wall of the groove 135. The sealing ring 4 is embedded in the sealing groove 136, and the sealing groove 136 abuts against the bottom of the sealing groove 136. The positioning ring 31 abuts against the end of the filter cartridge 2 away from the main body 11, and the end of the filter cartridge 2 away from the valve cover 3 abuts against the bottom of the groove 135.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flange filter valve, characterized in that: The valve body (1) includes a main body (11) and a flange (12). The flange (12) is connected to the outer periphery of the main body (11). There are two flanges (12). The two flanges (12) are symmetrically distributed along the axial direction of the main body (11). The two ends of the flanges (12) along the axial direction of the flanges (12) are welded and fixed to the outer wall of the main body (11).

2. The flange filter valve according to claim 1, characterized in that: The outer periphery of the main body (11) at both ends along the axis of the main body (11) is provided with annular grooves (111); the groove wall of the annular groove (111) is in contact with the inner wall of the flange (12); the bottom of the annular groove (111) abuts against one end of the flange (12).

3. The flange filter valve according to claim 1, characterized in that: The end of the flange (12) away from the other flange (12) is flush with one end of the body (11); the side surface of the flange (12) away from the other flange (12) is provided with a groove (121); the groove (121) is used for the embedding of the seal; the groove (121) is arranged around the body (11).

4. The flange filter valve according to claim 1, characterized in that: The outer wall of the main body (11) is provided with a grip groove (112); there are two grip grooves (112); the two grip grooves (112) are symmetrically distributed along the direction perpendicular to the axis of the main body (11).

5. The flange filter valve according to claim 1, characterized in that: It also includes a filter cartridge (2); the main body (11) is provided with a main channel (113); the valve body (1) also includes a side tube (13); one end of the side tube (13) extends into the main channel (113); the side tube (13) and the main body (11) are integrally formed; the axis of the side tube (13) is inclined to the axis of the main body (11); the side tube (13) is provided with a filter chamber (131); the side tube (13) is provided with an inlet (132) at one end near the main channel (113); the inlet (132) connects the filter chamber (131) and the main channel (113); the filter chamber (131) is provided with an outlet (133) on one side of the cavity wall near the main channel (113); the outlet (133) is connected to the main channel (113); the filter cartridge (2) is embedded in the filter chamber (131); the inlet (132) is located inside the filter cartridge (2).

6. The flange filter valve according to claim 5, characterized in that: It also includes a valve cover (3); the side tube (13) is provided with an installation groove (134) at one end away from the main body (11); one end of the valve cover (3) extends into the installation groove (134); the valve cover (3) abuts against the end of the filter cartridge (2) away from the liquid inlet (132); the outer wall of the valve cover (3) is threadedly connected to the groove wall of the installation groove (134).

7. The flange filter valve according to claim 6, characterized in that: The filter chamber (131) is drum-shaped; the inlet (132) is provided with a groove (135) at one end of the filter chamber (131); one end of the filter cylinder (2) abuts against the bottom of the groove (135); the outer wall of the filter cylinder (2) is in contact with the wall of the groove (135).

8. The flange filter valve according to claim 6, characterized in that: The valve cover (3) is connected to a positioning ring (31) on its outer periphery; the positioning ring (31) is used to abut against the end of the side tube (13) away from the main body (11).

9. The flange filter valve according to claim 8, characterized in that: It also includes a sealing ring (4); a sealing groove (136) is provided on the groove wall of the mounting groove (134) away from the main body (11); the sealing ring (4) is embedded in the sealing groove (136); the two ends of the sealing ring (4) abut against the bottom of the sealing groove (136) and the side surface of the positioning ring (31) near the main body (11), respectively.

10. The flange filter valve according to claim 6, characterized in that: The valve cover (3) is connected to a protrusion (32) at the end away from the main body (11); the cross-section of the protrusion (32) is hexagonal.

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