Safety valve sealing performance detection tool

Abstract

The utility model relates to the technical field of safety valve sealing performance detection, and discloses a safety valve sealing performance detection tool which comprises a detection box, a circular groove communicated with the detection box is formed in the rear surface of the detection box, a sealing ring and a fixing assembly are fixedly connected to the inner wall of the circular groove, and the fixing assembly is arranged on the detection box. The detection assembly is arranged on the detection box, the front surface of the detection box is fixedly connected with a connecting pipe, the front end of the connecting pipe is fixedly connected with a first connecting piece communicated with the connecting pipe, and the rear end of the connecting pipe penetrates into the detection box. The safety valve sealing performance detection tool not only can perform sealing performance detection on the safety valve, but also can perform sealing performance detection on the joint of the safety valve and the pipeline, so that detection personnel can visually detect the sealing performance of the joint of the safety valve or the safety valve pipeline, and the practicability of the safety valve sealing performance detection tool is further improved.

Description

Technical Field

[0001] This utility model relates to the field of safety valve sealing performance testing technology, specifically a safety valve sealing performance testing fixture. Background Technology

[0002] Safety valves are a type of automatic valve, mainly used in boilers, pressure vessels, and pipelines to control pressure and prevent it from exceeding specified values. They play an important role in protecting personal safety and equipment operation.

[0003] During long-term use, the outer shell or encapsulation structure of a safety valve may age, leading to gas leakage. Because of its small size, gas leakage is often not easily detected. When the safety valve's sealing performance is substandard, if the system pressure continues to rise, it will increase the risk of equipment damage and explosion. This is because the main function of a safety valve is to automatically open when the pressure exceeds the specified value, releasing excess pressure to protect equipment and pipelines. If the safety valve is not sealed properly, it cannot effectively control the pressure, which may cause the equipment to be subjected to excessive pressure and be damaged, or even cause an explosion. Therefore, a safety valve sealing performance testing fixture is needed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a safety valve sealing performance testing fixture, which solves the problem that during long-term use of safety valves, the outer shell or encapsulation structure will age, leading to gas leakage, and that because safety valves are small in size, gas leakage may not be easily detected.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a safety valve sealing performance testing fixture, including a testing box, a circular groove communicating with the rear surface of the testing box, and a sealing ring fixedly connected to the inner wall of the circular groove;

[0008] The fixing component is installed on the testing box;

[0009] The detection component is set on the detection box. A connecting pipe is fixedly connected to the front surface of the detection box. A first connecting piece communicating with the front end of the connecting pipe is fixedly connected to the front end of the connecting pipe. The rear end of the connecting pipe penetrates into the interior of the detection box.

[0010] The rear end of the connecting pipe is fixedly connected to a conveying pipe that communicates with it. The conveying pipe is a flexible hose, and the rear end of the conveying pipe is fixedly connected to a second connecting piece that communicates with it.

[0011] A gas sensor is fixedly installed on the rear inner wall of the detection box.

[0012] Preferably, the fixing component includes a concave frame, which is fixedly connected to the bottom of the detection box, and the upper surface of the concave frame has two rectangular grooves.

[0013] Both rectangular slots extend through the lower surface of the concave frame, and a dual-axis cylinder is fixedly installed on the lower surface of the concave frame. The left and right extension / retraction ends of the dual-axis cylinder are fixedly connected to connecting plates.

[0014] Preferably, a movable plate is fixedly connected to the upper surface of each of the two connecting plates, and the upper ends of the two movable plates slide through the inner wall of the corresponding rectangular groove.

[0015] Preferably, the upper ends of both movable plates are fixedly connected to a fixing frame, and the opposite sides of the two fixing frames are fixedly connected to a fixing clamp.

[0016] Preferably, a safety valve is provided on the upper surface of the concave frame, and the delivery pipe is used to connect to the safety valve.

[0017] Preferably, a pipe is fixedly installed at the rear end of the safety valve.

[0018] Preferably, the rear end of the pipe extends through the inner wall of the circular groove, and a sealing door is provided on the top of the testing box.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides a safety valve sealing performance testing fixture, which has the following beneficial effects:

[0021] 1. This safety valve sealing performance testing fixture, by setting up testing components, can not only quickly fix the safety valve and pipeline, but also perform sealing performance testing not only on the safety valve, but also on the connection between the safety valve and the pipeline. This allows the testing personnel to intuitively test the sealing performance of the safety valve or the connection between the safety valve and the pipeline, thereby improving the practicality of the safety valve sealing performance testing fixture.

[0022] 2. This safety valve sealing performance testing fixture uses two moving plates to move two fixed frames and two fixed clamps to relative positions, thereby fixing the safety valve in place by the two fixed clamps and improving the stability of the safety valve during testing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the safety valve sealing performance testing fixture of this utility model;

[0024] Figure 2 This is a schematic diagram of the interior of the testing box of this utility model;

[0025] Figure 3This is a schematic diagram showing the connection between the sealing ring and the circular groove of this utility model;

[0026] Figure 4 This is a bottom view of the lower surface of the concave frame of this utility model;

[0027] Figure 5 This is a top view of the upper surface of the concave frame of this utility model;

[0028] In the diagram: 1. Detection box; 2. Sealed door; 3. First connector; 4. Connecting pipe; 5. Delivery pipe; 6. Pipeline; 7. Gas sensor; 8. Safety valve; 9. Second connector; 10. Sealing ring; 11. Circular groove; 12. Connecting plate; 13. Concave frame; 14. Rectangular groove; 15. Moving plate; 16. Dual-axis cylinder; 17. Fixed clamp; 18. Fixed frame. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-5 This utility model provides a new technical solution: a safety valve sealing performance testing fixture, including a testing box 1, a circular groove 11 communicating with the rear surface of the testing box 1, a sealing ring 10 fixedly connected to the inner wall of the circular groove 11, and a fixing component, which is set on the testing box 1.

[0031] The detection component is set on the detection box 1. A connecting pipe 4 is fixedly connected to the front surface of the detection box 1. A first connecting piece 3 communicating with the front end of the connecting pipe 4 is fixedly connected to the front end of the connecting pipe 4. The rear end of the connecting pipe 4 penetrates into the interior of the detection box 1.

[0032] Among them, the rear end of the connecting pipe 4 is fixedly connected to the conveying pipe 5, which is a flexible hose, and the rear end of the conveying pipe 5 is fixedly connected to the second connecting piece 9.

[0033] Among them, a gas sensor 7 is fixedly installed on the rear inner wall of the detection box 1.

[0034] Furthermore, the fixing component includes a concave frame 13, which is fixedly connected to the bottom of the detection box 1, and two rectangular grooves 14 are formed on the upper surface of the concave frame 13.

[0035] Both rectangular slots 14 extend through the lower surface of the concave frame 13. A dual-axis cylinder 16 is fixedly installed on the lower surface of the concave frame 13, and connecting plates 12 are fixedly connected to the left and right extension ends of the dual-axis cylinder 16.

[0036] Furthermore, movable plates 15 are fixedly connected to the upper surfaces of the two connecting plates 12, and the upper ends of the two movable plates 15 slide through the inner walls of the corresponding rectangular grooves 14.

[0037] Furthermore, a fixing frame 18 is fixedly connected to the upper end of each of the two movable plates 15, and a fixing clamp 17 is fixedly connected to the opposite side of each of the two fixing frames 18.

[0038] Furthermore, a safety valve 8 is provided on the upper surface of the concave frame 13, and the delivery pipe 5 is used to connect to the safety valve 8.

[0039] Furthermore, a pipe 6 is fixedly installed at the rear end of the safety valve 8.

[0040] Furthermore, the rear end of the pipe 6 extends through the inner wall of the circular groove 11, and a sealing door 2 is installed on the top of the testing box 1.

[0041] Furthermore, when using this safety valve sealing performance testing fixture, the operator first opens the sealing door 2, then picks up the safety valve 8, places the safety valve 8 on the first connecting piece 3, and then starts the dual-axis cylinder 16. The left and right extension ends of the dual-axis cylinder 16 drive the two connecting plates 12 to move to the opposite position, thereby driving the two moving plates 15 to move to the opposite position.

[0042] Among them, the two movable plates 15 drive the two fixed frames 18 and the two fixed clamps 17 to move to the relative position, thereby fixing the safety valve 8 with the two fixed clamps 17, thereby improving the stability of the safety valve 8 during testing.

[0043] Then, the second connector 9 is picked up and fixedly installed together with the front end of the safety valve 8;

[0044] Then, pick up a pipe 6, insert the front end of the pipe 6 through the inner wall of the circular groove 11 into the inner wall of the detection box 1, and then fix the pipe 6 to the rear end of the safety valve 8 together with the connector.

[0045] It is worth mentioning that the rear end of pipe 6 needs to be sealed during the inspection.

[0046] Then, the first connector 3 is connected to the external gas supply pipe, and then a special gas (carbon dioxide) or the gas that can be detected by the gas sensor 7 is introduced, while the sealing door 2 is closed.

[0047] The input is fed into the safety valve 8 through the first connector 3, the connecting pipe 4, the delivery pipe 5, and the second connector 9. After a certain value is input, the input stops, and then the time at one end is observed.

[0048] If the safety valve 8 fails to seal properly, the special gas will leak into the inside of the detection box 1, and the gas sensor 7 will detect the special gas. The staff will then use this information to confirm whether the safety valve 8 is properly sealed.

[0049] When it is necessary to test the sealing performance of the connection between safety valve 8 and pipeline 6, safety valve 8 is opened to allow special gas to be introduced into the interior of pipeline 6. The working principle is the same as that for testing the sealing performance of safety valve 8. If the connection between safety valve 8 and pipeline 6 is not up to standard, the special gas will leak into the interior of the test box 1, and the gas sensor 7 will detect the special gas. The staff can then use this to confirm whether the sealing performance of the connection between safety valve 8 and pipeline 6 is up to standard.

[0050] The detection components not only allow for the rapid fixing of the safety valve 8 and the pipeline 6, but also enable the sealing test of both the safety valve 8 and the connection between the safety valve 8 and the pipeline 6. This allows inspectors to visually detect the sealing performance of the safety valve 8 or the connection between the safety valve 8 and the pipeline 6, thereby improving the practicality of the safety valve sealing performance testing fixture.

[0051] Structural Description:

[0052] Gas sensor 7: Gas sensor 7 is an existing structure, and its structure and working principle are the same as those of the gas sensor in an airtightness testing device disclosed in CN221612333U.

[0053] Rectangular groove 14: The rectangular groove 14 plays an auxiliary role in the movement of the movable plate 15.

[0054] Sealing ring 10: Sealing ring 10 is used for sealing the connection between pipe 6 and circular groove 11.

[0055] Fixing clamp 17: Fixing clamp 17 is used to fix the safety valve 8.

[0056] Fixture 18: Fixture 18 is used to support the fixing plate 17.

[0057] Second connector 9: The second connector 9 is used for connection with safety valve 8.

[0058] Dual-axis cylinder 16: Dual-axis cylinder 16 is used to drive the movement of the moving plate 15.

[0059] Circular groove 11: Circular groove 11 is used for the installation of pipe 6.

[0060] Concave bracket 13: Concave bracket 13 is used for placing safety valve 8.

[0061] Connecting pipe 4: Connecting pipe 4 is used for the delivery of special gases.

[0062] Delivery pipe 5: Delivery pipe 5 is a flexible hose, and it is used to deliver special gases.

[0063] 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 fixture for testing the sealing performance of a safety valve, characterized in that, include: The test box (1) has a circular groove (11) communicating with it on its rear surface, and a sealing ring (10) is fixedly connected to the inner wall of the circular groove (11). A fixing component is installed on the detection box (1); The detection component is set on the detection box (1). A connecting pipe (4) is fixedly connected to the front surface of the detection box (1). A first connecting piece (3) communicating with the front end of the connecting pipe (4) is fixedly connected to the front end of the connecting pipe (4). The rear end of the connecting pipe (4) penetrates into the interior of the detection box (1). Among them, the rear end of the connecting pipe (4) is fixedly connected to the conveying pipe (5) that communicates with it. The conveying pipe (5) is a flexible hose, and the rear end of the conveying pipe (5) is fixedly connected to the second connecting piece (9) that communicates with it. Among them, a gas sensor (7) is fixedly installed on the rear inner wall inside the detection box (1).

2. The safety valve sealing performance testing fixture according to claim 1, characterized in that: The fixing component includes a concave frame (13), which is fixedly connected to the bottom of the detection box (1). Two rectangular slots (14) are opened on the upper surface of the concave frame (13). Among them, the two rectangular slots (14) both extend through the lower surface of the concave frame (13), and the lower surface of the concave frame (13) is fixedly installed with a dual-axis cylinder (16), and the left and right extension ends of the dual-axis cylinder (16) are fixedly connected with connecting plates (12).

3. The safety valve sealing performance testing fixture according to claim 2, characterized in that: The upper surfaces of the two connecting plates (12) are fixedly connected with movable plates (15), and the upper ends of the two movable plates (15) slide through the inner walls of the corresponding rectangular grooves (14).

4. The safety valve sealing performance testing fixture according to claim 3, characterized in that: The upper ends of the two movable plates (15) are fixedly connected to a fixing frame (18), and the opposite sides of the two fixing frames (18) are fixedly connected to a fixing clamp (17).

5. The safety valve sealing performance testing fixture according to claim 2, characterized in that: The upper surface of the concave frame (13) is provided with a safety valve (8), and the delivery pipe (5) is used to connect to the safety valve (8).

6. The safety valve sealing performance testing fixture according to claim 5, characterized in that: The safety valve (8) has a pipe (6) fixedly installed at its rear end.

7. The safety valve sealing performance testing fixture according to claim 6, characterized in that: The rear end of the pipe (6) extends through the inner wall of the circular groove (11), and a sealing door (2) is provided on the top of the detection box (1).

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