Butterfly valve sealing performance detection device

Abstract

The utility model discloses a butterfly valve sealing performance detection device comprising a first sealing detection housing, one side of the outer wall of the first sealing detection housing is fixedly provided with an installation mechanism, and one side of the outer surface of the installation mechanism is fixedly provided with a sealing performance detection mechanism. And a gas flowing mechanism capable of moving left and right is arranged on one side of the inner wall of the first sealing detection shell. According to the butterfly valve sealing performance detection device, the mounting mechanism is arranged, so that the sealing performance detection device can be mounted on the surface position of the butterfly valve in a sealing manner, and the sealing performance detection device can stably perform sealing performance detection on the butterfly valve.

Description

Technical Field

[0001] This utility model relates to the technical field of butterfly valves, specifically a butterfly valve sealing performance testing device. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for on / off control of low-pressure pipeline media. A butterfly valve is characterized by a disc-shaped closing element (valve disc or butterfly plate) that rotates around a valve shaft to open and close. Butterfly valves can control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. They primarily function as shut-off and throttling devices in pipelines. The butterfly valve's opening and closing element is a disc-shaped butterfly plate that rotates around its own axis within the valve body to achieve opening, closing, or regulation. Currently, butterfly valves require sealing performance testing during production; therefore, we propose a butterfly valve sealing performance testing device.

[0003] The current sealing testing device cannot directly display the location of poor sealing in the butterfly valve during testing. Therefore, further testing is required at the location of the gap. Utility Model Content

[0004] The purpose of this invention is to provide a butterfly valve sealing performance testing device to solve the problem mentioned in the background art that the currently used sealing performance testing devices cannot directly display the location of poor sealing performance of the butterfly valve during testing, thus requiring further testing of the gap location during testing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a butterfly valve sealing performance testing device, comprising a first sealing performance testing housing, an installation mechanism fixedly installed on one side of the outer wall of the first sealing performance testing housing, a sealing performance testing mechanism fixedly installed on one side of the outer surface of the installation mechanism, and a gas flow mechanism that can move left and right on one side of the inner wall of the first sealing performance testing housing.

[0006] Preferably, the installation mechanism includes a second sealing detection housing, a sealing gasket, a limiting groove, a fixing block, a connecting block, and a threaded rod. The second sealing detection housing is disposed on one side of the outer wall of the first sealing detection housing. A sealing gasket is bonded to one side of the outer surface of the first sealing detection housing. A limiting groove is formed on one side of the inner wall of the second sealing detection housing. A fixing block is fixedly installed on the lower side of the outer wall of the first sealing detection housing. A connecting block is fixedly installed on the lower side of the outer wall of the second sealing detection housing. A threaded rod is fixedly installed on the inner wall of the connecting block.

[0007] Preferably, the connecting block is threadedly connected to the fixing block via a threaded rod, and the outer wall of the threaded rod is tightly fitted to the inner wall of the fixing block.

[0008] Preferably, the sealing test mechanism includes a connecting pipe, an external threaded pipe, an inner adhesive plate, and a phosphor plate. The connecting pipe is connected and installed on one side of the outer wall of the second sealing test housing. An external threaded pipe is fixedly installed on the outer surface of the connecting pipe. An inner adhesive plate is bonded to the inner wall of the external threaded pipe. A phosphor plate is bonded to the inner wall of the inner adhesive plate.

[0009] Preferably, the external threaded tube is threadedly connected to the second sealing detection housing via a connecting tube, and the outer wall of the connecting tube is tightly fitted to the inner wall of the external threaded tube.

[0010] Preferably, the gas flow mechanism includes a side pipe, a fixed pipe, a limiting pipe, and a fixed plate. The side pipe is connected and installed on one side of the outer wall of the first sealing detection housing. A fixed pipe is welded and installed on one side of the outer wall of the side pipe. A limiting pipe is movably connected to the inner wall of the fixed pipe. A fixed plate of matching size is provided on one side of the outer wall of the limiting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This butterfly valve sealing performance testing device, through the installation mechanism, can be sealed and installed on the surface of the butterfly valve, thus enabling the sealing performance testing device to stably test the sealing performance of the butterfly valve.

[0013] 2. This butterfly valve sealing performance testing device, by setting up a sealing performance testing mechanism and a gas flow mechanism, can perform sealing performance testing on butterfly valves. This testing operation is simple and can intuitively display the location of poor sealing inside the butterfly valve. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is a diagram of the sealing performance testing mechanism of this utility model;

[0016] Figure 3 This is a diagram of the installation mechanism of this utility model;

[0017] Figure 4 This is a diagram of the gas flow mechanism of this utility model.

[0018] In the diagram: 1. First sealing test housing; 2. Mounting mechanism; 201. Second sealing test housing; 202. Sealing gasket; 203. Limiting groove; 204. Fixing block; 205. Connecting block; 206. Threaded rod; 3. Sealing test mechanism; 301. Connecting pipe; 302. External threaded pipe; 303. Inner adhesive plate; 304. Fluorescent powder plate; 4. Gas flow mechanism; 401. Side pipe; 402. Fixing pipe; 403. Limiting pipe; 404. Fixing plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a butterfly valve sealing performance testing device, including a first sealing performance testing housing 1. An installation mechanism 2 is fixedly installed on one side of the outer wall of the first sealing performance testing housing 1. The installation mechanism 2 includes a second sealing performance testing housing 201, a sealing gasket 202, a limiting groove 203, a fixing block 204, a connecting block 205, and a threaded rod 206. The second sealing performance testing housing 201 is positioned on one side of the outer wall of the first sealing performance testing housing 1. A sealing gasket 202 is bonded to one side of the outer surface of the first sealing performance testing housing 1. A limiting groove 203 is formed on one side of the inner wall of the second sealing performance testing housing 201. A fixing block 204 is fixedly installed on the lower side of the outer wall of the first sealing performance testing housing 1. A connecting block 205 is fixedly installed on the lower side of the outer wall of the second sealing performance testing housing 201. A threaded rod 206 is fixedly installed on the inner wall of the connecting block 205. The sealing detection housing 1 is fixed on one side of the outer surface of the butterfly valve. The second sealing detection housing 201 is moved closer to the other side of the outer surface of the butterfly valve, so that the limiting groove 203 can be fixed on the surface of the sealing gasket 202. This can stably fix the sealing detection device on the surface of the butterfly valve. The threaded rod 206 is rotated to rotate within the inner wall of the fixing block 204, which can stably seal the surface of the butterfly valve. The connecting block 205 is threadedly connected to the fixing block 204 through the threaded rod 206, and the outer wall of the threaded rod 206 is tightly fitted with the inner wall of the fixing block 204. This can stably fix the position of the first sealing detection housing 1 and the second sealing detection housing 201, thereby covering and fixing both sides of the butterfly valve, and stably installing the sealing detection device.

[0021] A sealing test mechanism 3 is fixedly installed on one side of the outer surface of the mounting mechanism 2. The sealing test mechanism 3 includes a connecting pipe 301, an external threaded pipe 302, an inner adhesive plate 303, and a phosphor plate 304. The connecting pipe 301 is connected to and installed on one side of the outer wall of the second sealing test housing 201. The external threaded pipe 302 is fixedly installed on the outer surface of the connecting pipe 301. The inner adhesive plate 303 is bonded to the inner wall of the external threaded pipe 302. The phosphor plate 304 is bonded to the inner wall of the inner adhesive plate 303. The phosphor plate 304 is bonded to the inner wall of the inner adhesive plate 303. In this way, when the gas flows, the phosphor inside the phosphor plate 304 can flow. This allows the fluorescent powder to adhere to the inner surfaces of the first sealing detection housing 1 and the second sealing detection housing 201 at locations with poor sealing. The distribution of the fluorescent powder directly indicates the location of poor sealing in the butterfly valve. The external threaded pipe 302 is threadedly connected to the second sealing detection housing 201 via the connecting pipe 301, with the outer wall of the connecting pipe 301 tightly fitted to the inner wall of the external threaded pipe 302. This seals one side of the sealing detection device, preventing deviations in the sealing test results due to poor sealing.

[0022] The inner wall of the first sealing detection housing 1 is provided with a gas flow mechanism 4 that can move left and right. The gas flow mechanism 4 includes a side pipe 401, a fixed pipe 402, a limiting pipe 403, and a fixed plate 404. The side pipe 401 is connected and installed on one side of the outer wall of the first sealing detection housing 1. The fixed pipe 402 is welded and installed on one side of the outer wall of the side pipe 401. The limiting pipe 403 is movably connected to the inner wall of the fixed pipe 402. The fixed plate 404 of a matching size is provided on one side of the outer wall of the limiting pipe 403. Moving the limiting pipe 403 allows it to move within the inner wall of the fixed pipe 402, which in turn drives the fixed plate 404 to move within the inner wall of the side pipe 401. This enhances the gas flow inside the sealing detection device, allowing the gas to move within the butterfly valve.

[0023] Working principle: First, place the device in the designated position. Fix the first sealing detection housing 1 to one side of the outer surface of the butterfly valve. Move the second sealing detection housing 201 closer to the other side of the outer surface of the butterfly valve, so that the limiting groove 203 can be fixed on the surface of the sealing gasket 202. This can stably fix the sealing detection device on the surface of the butterfly valve. Rotate the threaded rod 206 to make it rotate within the inner wall of the fixing block 204, thus stabilizing the sealing installation on the surface of the butterfly valve. Move the limiting tube 403 to move within the inner wall of the fixing tube 402, which can drive the fixing plate 404 to move within the inner wall of the side pipe 401, thus enhancing the sealing detection device. The internal gas flow is arranged so that the gas can move inside the butterfly valve. The rotating sealing gasket 202 rotates on the surface of the connecting pipe 301, which seals one side of the butterfly valve and prevents the flowing air from leaking out. The fluorescent powder plate 304 is adhered to the inner wall of the inner adhesive plate 303. When the gas flows, the fluorescent powder inside the fluorescent powder plate 304 can flow, so that it can adhere to the inner surface of the first sealing detection shell 1 and the second sealing detection shell 201 at the location of poor sealing. At the same time, the location of poor sealing of the butterfly valve can be directly displayed by the distribution of the fluorescent powder. This completes the operation process of the butterfly valve sealing detection device.

[0024] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A butterfly valve sealing performance testing device, characterized in that, The first sealing detection housing (1) is provided with a mounting mechanism (2) fixedly installed on one side of the outer wall of the first sealing detection housing (1), a sealing detection mechanism (3) fixedly installed on one side of the outer surface of the mounting mechanism (2), and a gas flow mechanism (4) that can move left and right on one side of the inner wall of the first sealing detection housing (1).

2. The butterfly valve sealing performance testing device according to claim 1, characterized in that: The installation mechanism (2) includes a second sealing detection housing (201), a sealing gasket (202), a limiting groove (203), a fixing block (204), a connecting block (205), and a threaded rod (206). The second sealing detection housing (201) is located on one side of the outer wall of the first sealing detection housing (1). A sealing gasket (202) is bonded to one side of the outer surface of the first sealing detection housing (1). A limiting groove (203) is opened on one side of the inner wall of the second sealing detection housing (201). A fixing block (204) is fixedly installed on one side of the lower outer wall of the first sealing detection housing (1). A connecting block (205) is fixedly installed on one side of the lower outer wall of the second sealing detection housing (201). A threaded rod (206) is fixedly installed on the inner wall of the connecting block (205).

3. The butterfly valve sealing performance testing device according to claim 2, characterized in that: The connecting block (205) is threadedly connected to the fixing block (204) via a threaded rod (206), and the outer wall of the threaded rod (206) is tightly fitted to the inner wall of the fixing block (204).

4. The butterfly valve sealing performance testing device according to claim 2, characterized in that: The sealing test mechanism (3) includes a connecting pipe (301), an external threaded pipe (302), an inner adhesive plate (303), and a fluorescent powder plate (304). The connecting pipe (301) is connected and installed on one side of the outer wall of the second sealing test housing (201). The external threaded pipe (302) is fixedly installed on the outer surface of the connecting pipe (301). The inner adhesive plate (303) is bonded to the inner wall of the external threaded pipe (302). The fluorescent powder plate (304) is bonded to the inner wall of the inner adhesive plate (303).

5. The butterfly valve sealing performance testing device according to claim 4, characterized in that: The external threaded tube (302) is threadedly connected to the second sealing detection housing (201) through the connecting tube (301), and the outer wall of the connecting tube (301) is tightly fitted to the inner wall of the external threaded tube (302).

6. The butterfly valve sealing performance testing device according to claim 1, characterized in that: The gas flow mechanism (4) includes a side pipe (401), a fixed pipe (402), a limiting pipe (403), and a fixed plate (404). The side pipe (401) is connected and installed on one side of the outer wall of the first sealing detection housing (1). The fixed pipe (402) is welded and installed on one side of the outer wall of the side pipe (401). The inner wall of the fixed pipe (402) is movably connected to the limiting pipe (403). The outer wall of the limiting pipe (403) is provided with a fixed plate (404) of matching size.

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