Airtightness testing device for explosion-proof valve

Abstract

The utility model belongs to the technical field of explosion-proof valves, and particularly relates to an explosion-proof valve air tightness testing device, which comprises a bottom plate, and further comprises a clamping assembly used for extruding and fixing an explosion-proof valve and arranged on the top of the bottom plate; the positioning assembly is used for correcting the position of the anti-explosion valve and is arranged on the clamping assembly; and the test assembly is used for carrying out air tightness test on the explosion-proof valve, is arranged on the top of the bottom plate and is connected with the clamping assembly. According to the explosion-proof valve airtightness testing device, the clamping assembly used for extruding and fixing the explosion-proof valve, the positioning assembly used for correcting the position of the explosion-proof valve, and the testing assembly used for carrying out airtightness testing on the explosion-proof valve are arranged, so that airtightness testing can be carried out on explosion-proof valves of various sizes, and the flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof valves, and particularly relates to an airtightness testing device for explosion-proof valves. Background Technique

[0002] An explosion-proof valve is a safety device used in a dust removal system containing combustible gas or combustible substances, aiming to prevent explosion accidents. In addition, the explosion-proof valve is through its internal pressure sensing mechanism. When the pressure in the system exceeds the set value, the valve body will automatically open to release the excess pressure, thereby preventing the system from being damaged due to overpressure. When the pressure drops to the safe range, the valve body automatically closes to restore the normal working state of the system.

[0003] Currently, after the explosion-proof valve is processed, it is usually subjected to airtightness testing to determine whether there is an air leakage phenomenon in the explosion-proof valve. Since the flange size on the explosion-proof valve is fixed, it is difficult for the existing airtightness testing devices to test explosion-proof valves of various sizes, which has limitations. Therefore, an airtightness testing device for explosion-proof valves is invented. Content of the Utility Model

[0004] In view of the above and / or existing problems in an airtightness testing device for explosion-proof valves, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide an airtightness testing device for explosion-proof valves, which can solve the above-mentioned existing problems.

[0006] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0007] An airtightness testing device for explosion-proof valves, which includes a bottom plate, and further includes:

[0008] A clamping assembly for squeezing and fixing the explosion-proof valve, and the clamping assembly is arranged on the top of the bottom plate;

[0009] A positioning assembly for correcting the position of the explosion-proof valve, and the positioning assembly is arranged on the clamping assembly;

[0010] A testing assembly for performing airtightness testing on the explosion-proof valve, and the testing assembly is arranged on the top of the bottom plate and is connected to the clamping assembly.

[0011] As a preferred solution of an airtightness testing device for explosion-proof valves according to the present utility model, wherein: the clamping assembly includes:

[0012] Side plates, and both ends of the top of the bottom plate are fixedly installed with side plates;

[0013] The first box body, and the first box body is fixedly installed on the side plates.

[0014] As a preferred embodiment of an explosion-proof valve airtightness testing device according to the present utility model, wherein: the clamping assembly further includes:

[0015] A first cylinder, which is fixedly installed in the first box body;

[0016] A first circular plate, and the first cylinder is fixedly installed with the first circular plate through a piston rod.

[0017] As a preferred embodiment of an explosion-proof valve airtightness testing device according to the present utility model, wherein: the clamping assembly further includes:

[0018] A hard pipe, which is fixedly installed in the middle of the first circular plate, and the hard pipe is slidably connected to the side plate, and the opposite ends of the two groups of hard pipes are inserted into the air inlet and air outlet of the explosion-proof valve;

[0019] A second circular plate, the opposite ends of the two groups of hard pipes are fixedly installed with the second circular plate, and the second circular plate is in close contact with the flange on the explosion-proof valve.

[0020] As a preferred embodiment of an explosion-proof valve airtightness testing device according to the present utility model, wherein: the opposite ends of the two groups of second circular plates are each provided with a plurality of sealing rings of different sizes, so as to ensure the sealing performance when contacting flanges of different sizes.

[0021] As a preferred embodiment of an explosion-proof valve airtightness testing device according to the present utility model, wherein: the positioning assembly includes:

[0022] A second box body, and a plurality of second box bodies are fixedly installed in an annular arrangement at the opposite ends of the two groups of hard pipes;

[0023] A second cylinder, which is fixedly installed in the second box body;

[0024] An extrusion block, and the second cylinder is fixedly installed with the extrusion block through a piston rod, and the shape of the extrusion block is set as a hemisphere.

[0025] As a preferred embodiment of an explosion-proof valve airtightness testing device according to the present utility model, wherein: the testing assembly includes:

[0026] An air pump, which is fixedly installed on the top right side of the bottom plate;

[0027] A pipeline, which is fixedly installed at the air outlet end of the air pump, and one end of the pipeline is fixedly installed in the hard pipe on the right side.

[0028] As a preferred embodiment of an explosion-proof valve airtightness testing device according to the present utility model, wherein: the testing assembly further includes:

[0029] A glass box is fixedly installed on the top left side of the bottom plate, and one end of the rigid pipe on the left side is slidably connected to the side wall of the glass box;

[0030] A one-way valve is fixedly installed at one end of the rigid pipe on the left side.

[0031] Compared with the prior art:

[0032] By providing a clamping assembly for squeezing and fixing the explosion-proof valve, a positioning assembly for correcting the position of the explosion-proof valve, and a testing assembly for performing airtightness testing on the explosion-proof valve, it is possible to perform airtightness testing on explosion-proof valves of various sizes, with high flexibility; in addition, through the provided clamping assembly, it is also convenient for personnel to fix the explosion-proof valve, which improves the testing efficiency of the explosion-proof valve to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0034] Figure 2 It is a sectional view schematic diagram of the structure of the present invention;

[0035] Figure 3 For the present invention Figure 2 It is an enlarged schematic diagram of the structure at A in the present invention;

[0036] Figure 4 It is a side view schematic diagram of the rigid pipe and the second circular plate of the present invention.

[0037] In the figure: bottom plate 10, side plate 20, first box body 21, first cylinder 22, first circular plate 23, rigid pipe 24, second circular plate 25, second box body 30, second cylinder 31, extrusion block 32, air pump 40, pipeline 41, glass box 42, one-way valve 43. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] To make the objects, technical solutions and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail with reference to the drawings.

[0039] The present invention provides an explosion-proof valve airtightness testing device. Please refer to Figures 1-4 , including a bottom plate 10;

[0040] It further includes: a clamping assembly for squeezing and fixing the explosion-proof valve, and the clamping assembly is arranged on the top of the bottom plate 10;

[0041] The clamping assembly includes: side plate 20, first box body 21, first cylinder 22, first circular plate 23, rigid pipe 24, second circular plate 25;

[0042] At both ends of the top of the bottom plate 10, side plates 20 are fixedly installed. The first box body 21 is fixedly installed on the side plate 20. The first cylinder 22 is fixedly installed in the first box body 21. The first cylinder 22 fixedly installs the first circular plate 23 through a piston rod. The hard pipe 24 is fixedly installed in the middle of the first circular plate 23, and the hard pipe 24 is slidably connected to the side plate 20. The opposite ends of the two groups of hard pipes 24 are inserted into the air inlet and air outlet of the explosion-proof valve. The opposite ends of the two groups of hard pipes 24 are fixedly installed with second circular plates 25, and the second circular plates 25 are in close contact with the flange on the explosion-proof valve. A number of sealing rings of different sizes are provided at the opposite ends of the two groups of second circular plates 25 to ensure the sealing performance when contacting flanges of different sizes.

[0043] It further includes: a positioning component for correcting the position of the explosion-proof valve, and the positioning component is arranged on the clamping component;

[0044] The positioning component includes: a second box body 30, a second cylinder 31, and an extrusion block 32;

[0045] A number of second box bodies 30 are fixedly installed in a circular arrangement at the opposite ends of the two groups of hard pipes 24. The second cylinder 31 is fixedly installed in the second box body 30. The second cylinder 31 fixedly installs the extrusion block 32 through a piston rod, and the shape of the extrusion block 32 is set as a hemisphere.

[0046] It further includes: a testing component for testing the airtightness of the explosion-proof valve, and the testing component is arranged on the top of the bottom plate 10 and is connected to the clamping component;

[0047] The testing component includes: an air pump 40, a pipeline 41, a glass box 42, and a one-way valve 43;

[0048] The air pump 40 is fixedly installed on the right side of the top of the bottom plate 10. The pipeline 41 is fixedly installed at the air outlet end of the air pump 40. The length of the pipeline 41 can be set according to requirements, and one end of the pipeline 41 is fixedly installed in the hard pipe 24 on the right side. The glass box 42 is fixedly installed on the left side of the top of the bottom plate 10. One end of the hard pipe 24 on the left side is slidably connected to the side wall of the glass box 42. A sealing ring can be set at the connection between the hard pipe 24 and the glass box 42 according to requirements. The one-way valve 43 is fixedly installed at one end of the hard pipe 24 on the left side; among them, there is water in the glass box 42.

[0049] When in specific use, the specific steps are as follows:

[0050] Step 1: Place the explosion-proof valve between two groups of second circular plates 25. Then, move the second circular plates 25 towards the explosion-proof valve through the first cylinder 22 until the second circular plates 25 squeeze the flange on the explosion-proof valve. Thus, the explosion-proof valve can be squeezed and fixed. During this process, the opposite ends of the two hard pipes 24 will be respectively inserted into the air inlet and air outlet of the explosion-proof valve. At the same time, the extrusion block 32 will be used to squeeze the inner wall of the air inlet or the inner wall of the air outlet of the explosion-proof valve through the second cylinder 31 to prevent the position of the explosion-proof valve from shifting and improve stability. Among them, the air inlet of the explosion-proof valve is on the right side, and the air outlet of the explosion-proof valve is on the left side.

[0051] Step 2: Inject an appropriate amount of air into the explosion-proof valve through the air pump 40. Then, observe whether there are bubbles generated in the water in the glass box 42. If bubbles are generated, it means that the explosion-proof valve has a leakage phenomenon. On the contrary, if no bubbles are generated, it means that the explosion-proof valve has no leakage phenomenon.

[0052] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An explosion-proof valve airtightness test device, including a bottom plate (10), characterized in that, Further included are: A clamping assembly for squeezing and fixing the explosion-proof valve, and the clamping assembly is arranged on the top of the bottom plate (10); A positioning assembly for correcting the position of the explosion-proof valve, and the positioning assembly is arranged on the clamping assembly; A testing assembly for performing an airtightness test on the explosion-proof valve, and the testing assembly is arranged on the top of the bottom plate (10) and is connected to the clamping assembly.

2. The airtightness testing device for an explosion-proof valve according to claim 1, wherein, The clamping assembly includes: Side plates (20), and both ends of the top of the bottom plate (10) are fixedly installed with side plates (20); The first box body (21), and the first box body (21) is fixedly installed on the side plate (20).

3. The airtightness testing device for an explosion-proof valve according to claim 2, wherein, The clamping assembly further includes: The first cylinder (22), and the first cylinder (22) is fixedly installed in the first box body (21); The first circular plate (23), and the first cylinder (22) is fixedly installed with the first circular plate (23) through a piston rod.

4. An explosion-proof valve airtightness testing device according to claim 3, characterized in that, The clamping assembly further includes: The hard pipe (24), and the hard pipe (24) is fixedly installed in the middle of the first circular plate (23), and the hard pipe (24) is slidably connected to the side plate (20), and the opposite ends of the two groups of hard pipes (24) are inserted into the air inlet and air outlet of the explosion-proof valve; The second circular plate (25), and the opposite ends of the two groups of hard pipes (24) are fixedly installed with the second circular plate (25), and the second circular plate (25) is in close contact with the flange on the explosion-proof valve.

5. An explosion-proof valve airtightness test device according to claim 4, characterized in that, A plurality of sealing rings of different sizes are provided at the opposite ends of the two groups of second circular plates (25) to ensure the sealing performance when contacting flanges of different sizes.

6. An explosion-proof valve airtightness testing device according to claim 4, characterized in that, The positioning assembly includes: The second box body (30), and a plurality of second box bodies (30) are fixedly installed in an annular arrangement at the opposite ends of the two groups of hard pipes (24); The second cylinder (31), and the second cylinder (31) is fixedly installed in the second box body (30); The extrusion block (32), and the second cylinder (31) is fixedly installed with the extrusion block (32) through a piston rod, and the shape of the extrusion block (32) is set as a hemisphere.

7. An explosion-proof valve airtightness testing device according to claim 4, characterized in that, The testing assembly includes: The air pump (40), and the air pump (40) is fixedly installed on the right side of the top of the bottom plate (10); The pipeline (41), and the pipeline (41) is fixedly installed on the air outlet end of the air pump (40), and one end of the pipeline (41) is fixedly installed in the hard pipe (24) on the right side.

8. An explosion-proof valve airtightness test device according to claim 7, characterized in that The testing assembly further includes: The glass box (42), and the glass box (42) is fixedly installed on the left side of the top of the bottom plate (10), and one end of the hard pipe (24) on the left side is slidably connected to the side wall of the glass box (42); The one-way valve (43), and the one-way valve (43) is fixedly installed at one end of the hard pipe (24) on the left side.

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