Portable valve pressure testing device

Abstract

The utility model discloses a portable valve pressure test device, which comprises an operation table, and a lifting sealing pressure test table and a limiting device are mounted on the operation table. The lifting sealing pressure test table comprises a bearing surface for bearing a bottom end flange of a valve to be subjected to pressure test, and a sealing piece is arranged between the bearing surface and the bottom end flange; and the limiting device is positioned above the lifting sealing pressure test table so as to block the valve to be subjected to pressure test along the vertical direction. And when the lifting sealing pressure test table ascends until the valve to be subjected to pressure test abuts against the limiting device, the lifting sealing pressure test table and the limiting device clamp the valve to be subjected to pressure test in the vertical direction, and a sealing piece deforms to seal a bottom end flange of the valve to be subjected to pressure test. According to the portable valve pressure test device, the installation steps of the valve to be subjected to pressure test can be simplified, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve pressure testing, in particular to a portable valve pressure testing device. Background Art

[0002] Valve pressure testing is an important quality control process that is critical to ensuring valve reliability and safety.

[0003] In the prior art, manual installation and disassembly is usually adopted, where the assembled valve is manually installed on the pressure test device through a flange or a pipe, and then the valve is filled with fluid for pressure test, and then manually disassembled after the pressure test. The manual installation and disassembly process is both labor-consuming and time-consuming.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0005] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a convenient valve pressure testing device in view of the deficiencies in the prior art, so as to shorten the valve installation time and thus improve work efficiency.

[0006] In order to solve the above technical problems, the utility model discloses a convenient valve pressure testing device, which includes an operating table, on which a lifting sealing pressure testing table and a limit device are installed; the lifting sealing pressure testing table includes a supporting surface for supporting the bottom end flange of the valve to be pressure tested, and a sealing member is arranged between the supporting surface and the bottom end flange; the limit device is located above the lifting sealing pressure testing table to resist the valve to be pressure tested in the vertical direction.

[0007] When the lifting sealing pressure test platform rises until the valve to be pressure tested abuts against the limiting device, the lifting sealing pressure test platform and the limiting device clamp the valve to be pressure tested in the vertical direction and deform the sealing member to seal the bottom flange of the valve to be pressure tested.

[0008] In some examples, the device also includes an air source connecting pipe, a shockproof pressure gauge and a needle valve, one end of the air source connecting pipe is connected to the lifting sealing pressure test platform to communicate with the interior of the valve to be pressure tested, and the other end is used to connect with an external air source; the shockproof pressure gauge and the needle valve are arranged on the air source connecting pipe, and the shockproof pressure gauge is arranged between the needle valve and the lifting sealing pressure test platform.

[0009] In some examples, a fluid channel for connecting to the interior of the valve to be pressure tested is formed inside the lifting seal pressure test platform; a first opening and a second opening are respectively provided at both ends of the fluid channel, the first opening is provided in the area of ​​the lifting seal pressure test platform located inside the seal, the second opening is provided on the side wall of the lifting seal pressure test platform, and one end of the air source connecting pipe is connected to the second opening of the lifting seal pressure test platform.

[0010] In some examples, the device includes a lifting device for driving the lifting and moving of the lifting and sealing pressure test platform, the lifting device includes a stationary part and a movable part, the stationary part is fixedly supported under the operating platform; the movable part can pass through the operating platform and connect with the lifting and sealing pressure test platform.

[0011] In some examples, the operating platform is provided with a hole for the movable component of the lifting device to pass through.

[0012] In some examples, the limiting device includes a limiting column and a limiting baffle for resisting the valve to be pressure tested in the vertical direction, the bottom end of the limiting column is fixedly connected to the operating table, and the limiting baffle is rotatably connected to the upper part of the limiting column.

[0013] In some examples, the limiting baffle is provided with a mounting groove along its extension direction, and the limiting device is fixedly connected to the upper portion of the limiting column through the mounting groove by a mounting screw.

[0014] In some examples, there are three or more limit devices, which are arranged around the lifting sealing pressure test platform.

[0015] In some examples, an annular groove group is formed on the supporting surface, and the annular groove group includes a plurality of concentrically arranged annular grooves, and the annular grooves are used to place the sealing members of corresponding specifications.

[0016] Beneficial effects:

[0017] 1. The portable valve pressure testing device disclosed by the utility model has a simple structure and is easy to carry to the production site to perform pressure resistance tests on some valves.

[0018] 2. In the utility model, when the lifting sealing pressure test platform rises to the point where the valve to be pressure tested abuts against the limit device, the lifting sealing pressure test platform and the limit device clamp the valve to be pressure tested in the vertical direction, and deform the sealing member to seal the bottom flange of the valve to be pressure tested, which can simplify the valve installation steps and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, and the above and / or other advantages of the present invention will become more clear.

[0020] Figure 1 A schematic structural diagram of a portable valve pressure testing device disclosed in one embodiment of the utility model;

[0021] Figure 2 for Figure 1 A top view of the portable valve pressure testing device shown;

[0022] Figure 3 It is a structural schematic diagram of a valve to be pressure tested being clamped on a portable valve pressure testing device disclosed in one embodiment of the utility model;

[0023] Figure 4 for Figure 1 A top view of the lifting seal pressure testing platform in the portable valve pressure testing device shown.

[0024] Figure 5 for Figure 4 A cross-sectional view of the lifting seal pressure test bench is shown.

[0025] The description of the accompanying drawings is:

[0026] 1. Operating table; 11. Hole; 2. Lifting seal pressure test table; 21. Supporting surface; 22. Fluid channel; 23. First opening; 24. Second opening; 25. Annular groove; 3. Limiting device; 31. Limiting column; 32. Limiting baffle; 33. Mounting screw; 34. Mounting groove; 4. Valve to be pressure tested; 41. Bottom flange; 5. Seal; 6. Lifting device; 61. Stationary part; 62. Movable part; 7. Air source connecting pipe; 8. Shockproof pressure gauge; 9. Needle valve; 10. Base. DETAILED DESCRIPTION

[0027] See also Figures 1 to 3 The utility model discloses a convenient valve pressure testing device, which can simplify the pressure testing steps while ensuring the accuracy of the pressure test, thereby reducing labor costs.

[0028] See also Figures 1 to 3 The device comprises an operating platform 1, on which a lifting seal pressure test platform 2 and a limit device 3 are fixedly mounted. The lifting seal pressure test platform 2 comprises a supporting surface 21 for supporting a bottom flange 41 of a valve 4 to be pressure tested, and a sealing member 5 is arranged between the supporting surface 21 and the bottom flange 41. The limit device 3 is located above the lifting seal pressure test platform 2 to resist the valve 4 to be pressure tested in the vertical direction.

[0029] When the lifting sealing pressure test platform 2 rises until the valve 4 to be pressure tested abuts against the limit device 3, the lifting sealing pressure test platform 2 and the limit device 3 clamp the valve 4 to be pressure tested in the vertical direction and deform the sealing member 5 to seal the bottom flange 41 of the valve 4 to be pressure tested.

[0030] For some examples, see Figure 3 The device also includes a pressure test pipeline that can be switched on and off, and the pressure test pipeline that can be switched on and off includes an air source pipe 7, a shockproof pressure gauge 8 and a needle valve 9. One end of the air source pipe 7 is connected to the lifting and sealing pressure test platform 2 to communicate with the inside of the valve 4 to be pressure tested, and the other end is used to communicate with an external air source. The air source pipe 7 is provided with a shockproof pressure gauge 8 and a needle valve 9, and the shockproof pressure gauge 8 is arranged between the needle valve 9 and the lifting and sealing pressure test platform 2. In some examples, the air source pipe 7 is threadedly connected to the sealing platform body 21.

[0031] For some examples, see Figure 4 and Figure 5 A fluid channel 22 for communicating with the inside of the valve 4 to be pressure tested is formed inside the lifting and sealing pressure test platform 2. In some examples, a first opening 23 and a second opening 24 are respectively provided at both ends of the fluid channel 22, the first opening 23 is provided in the area of ​​the lifting and sealing pressure test platform 2 located inside the sealing member 5, the second opening 24 is provided on the side wall of the lifting and sealing pressure test platform 2, and one end of the air source pipe 7 is communicated with the second opening 24 of the lifting and sealing pressure test platform 2.

[0032] like Figure 3 As shown, after the device is clamped, the flange surface on the other side of the valve 4 to be pressure tested is fastened and blindly sealed, and the pressure is adjusted by the needle valve 9 so that the valve test pressure reaches 1.1 times the design pressure of the valve 4 to be pressure tested for pressure resistance test.

[0033] For some examples, see Figure 3 The sealing pressure test platform 2 and the limit device 3 are lifted and lowered to clamp the bottom flange 41 of the valve 4 to be pressure tested in the vertical direction.

[0034] For some examples, see Figure 3 The supporting surface 21 is the top surface of the lifting and sealing pressure testing platform 2.

[0035] For some examples, see Figure 3 The device includes a lifting device 6 for driving the lifting and lowering sealing pressure test platform 2 to move up and down. The lifting device 6 includes a stationary component 61 and a movable component 62. The stationary component 61 is fixedly supported below the operating platform 1. The movable component 62 can pass through the operating platform 1 and connect with the lifting and lowering sealing pressure test platform 2. In some examples, see Figure 3 , the lifting device 6 is a standard screw jack.

[0036] For some examples, see Figure 1The operating platform 1 is provided with a hole 11 for the movable component 62 of the lifting device 6 to pass through. In some embodiments, the hole 11 is adapted to the movable component 62 to guide the movable component 62.

[0037] For some examples, see Figure 1 The limiting device 3 includes a limiting column 31 and a limiting baffle 32 for resisting the valve 4 to be pressure tested in the vertical direction. The bottom end of the limiting column 31 is fixedly connected to the operating table 1, and the limiting baffle 32 is rotatably connected to the upper part of the limiting column 31.

[0038] In some examples, there are three or more limit devices 3, which are arranged around the lifting and sealing pressure test platform 2. Figure 3 , there are four limiting devices 3.

[0039] For some examples, see Figure 2 The limiting baffle 32 is provided with a mounting groove 34 along its extending direction, and the mounting screw 33 fixes the limiting device 3 to the upper part of the limiting column 31 through the mounting groove 34 .

[0040] In this embodiment, the position of the upper portion of the limit column 31 passing through the installation groove 34 is adjusted, and the length of the limit baffle 32 extending toward the center position of the lifting sealing pressure test platform 2 is adjusted so that valves of different diameters can be clamped.

[0041] For some examples, see Figure 4 The supporting surface 21 is provided with an annular groove group, which includes a plurality of concentrically arranged annular grooves 25, and the annular grooves 25 are used to place a sealing member 5 of corresponding specifications. In some embodiments, the sealing member 5 is an O-ring.

[0042] In a specific embodiment, see Figure 3 The operating platform 1 is fixedly mounted on a base 10 through a column. The stationary component 61 of the jacking device 6 is fixedly mounted on the base 10 to achieve a fixed connection with the operating platform 1.

[0043] The utility model provides a concept and method of a portable valve pressure test device. There are many methods and ways to implement the technical solution. The above is only the preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A portable valve pressure testing device, characterized in that: The invention comprises an operating table (1), on which a lifting sealing pressure test table (2) and a limiting device (3) are installed; the lifting sealing pressure test table (2) comprises a supporting surface (21) for supporting a bottom flange (41) of a valve (4) to be pressure tested, and a sealing member (5) is arranged between the supporting surface (21) and the bottom flange (41); the limiting device (3) is located above the lifting sealing pressure test table (2) to support the valve (4) to be pressure tested in the vertical direction.

2. The portable valve pressure testing device according to claim 1, characterized in that: When the lifting sealing pressure test platform (2) rises until the valve (4) to be pressure tested abuts against the limiting device (3), the lifting sealing pressure test platform (2) and the limiting device (3) clamp the valve (4) to be pressure tested in the vertical direction and deform the sealing member (5) to seal the bottom flange (41) of the valve (4) to be pressure tested.

3. The portable valve pressure testing device according to claim 2 is characterized in that: The device further comprises an air source connecting pipe (7), a shockproof pressure gauge (8) and a needle valve (9); one end of the air source connecting pipe (7) is connected to the lifting seal pressure test platform (2) to communicate with the inside of the valve (4) to be pressure tested, and the other end is used to communicate with an external air source; the shockproof pressure gauge (8) and the needle valve (9) are arranged on the air source connecting pipe (7), and the shockproof pressure gauge (8) is arranged between the needle valve (9) and the lifting seal pressure test platform (2).

4. The portable valve pressure testing device according to claim 3 is characterized in that: A fluid channel (22) for communicating with the interior of the valve (4) to be pressure tested is formed inside the lifting seal pressure test platform (2); a first opening (23) and a second opening (24) are respectively provided at both ends of the fluid channel (22); the first opening (23) is provided in the area of ​​the lifting seal pressure test platform (2) located inside the sealing member (5); the second opening (24) is provided on the side wall of the lifting seal pressure test platform (2); and one end of the air source connecting pipe (7) is communicated with the second opening (24) of the lifting seal pressure test platform (2).

5. The portable valve pressure testing device according to claim 1, characterized in that: The device comprises a lifting device (6) for driving the lifting and moving sealing pressure test platform (2), the lifting device (6) comprising a stationary component (61) and a movable component (62), the stationary component (61) being fixedly supported below the operating platform (1); and the movable component (62) being able to pass through the operating platform (1) and be connected to the lifting and moving sealing pressure test platform (2).

6. The portable valve pressure testing device according to claim 5, characterized in that: The operating platform (1) is provided with a hole (11) for the movable component (62) of the lifting device (6) to pass through.

7. The portable valve pressure testing device according to claim 1, characterized in that: The limiting device (3) comprises a limiting column (31) and a limiting baffle (32) for resisting the valve (4) to be pressure tested in the vertical direction; the bottom end of the limiting column (31) is fixedly connected to the operating table (1), and the limiting baffle (32) is rotatably connected to the upper part of the limiting column (31).

8. The portable valve pressure testing device according to claim 7, characterized in that: The limiting baffle (32) is provided with a mounting groove (34) along its extension direction, and the limiting device (3) is fixedly connected to the upper part of the limiting column (31) through the mounting groove (34) by a mounting screw (33).

9. The portable valve pressure testing device according to claim 1, characterized in that: The limiting devices (3) are provided with more than three and are arranged around the lifting sealing pressure testing platform (2).

10. The portable valve pressure testing device according to claim 1, characterized in that: The supporting surface (21) is provided with an annular groove group, the annular groove group comprising a plurality of concentrically arranged annular grooves (25), and the annular grooves (25) are used to place the sealing element (5) of corresponding specifications.

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