Pressure vessel welding seam nondestructive testing equipment with high detection precision for pressure vessel detection

Abstract

The nondestructive testing equipment comprises a base, the top of the base is fixedly connected with a shell, the bottom of the base is movably connected with a threaded pipe, an inner cavity of the threaded pipe is in threaded connection with a screw rod, the bottom of the screw rod is provided with a suction cup, and the bottom of the suction cup is fixedly connected with the shell. And the surface of the screw rod is movably connected with a limiting sleeve. The base, the shell, the threaded pipe, the screw rod, the suction cup, the limiting sleeve, the connecting piece, the telescopic rod, the mounting frame, the protection pad, the weld joint nondestructive testing instrument, the spring, the fan, the connecting port, the sealing cover and the lifting handle are used in cooperation, so that the pressure vessel weld joint nondestructive testing equipment has the advantage of being convenient to carry; the problems that although an existing pressure vessel welding seam nondestructive testing device is provided with moving wheels, the existing pressure vessel welding seam nondestructive testing device is still inconvenient to carry due to the shape of the existing pressure vessel welding seam nondestructive testing device and cannot detect a far pressure vessel which is inconvenient to transport are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of weld nondestructive testing equipment, in particular to pressure vessel weld nondestructive testing equipment with high testing accuracy for pressure vessel testing. Background Art

[0002] Pressure vessels refer to closed equipment that contains gas or liquid and bears a certain pressure. Pressure vessels are widely used. At present, pressure vessel weld non-destructive testing equipment is needed in the process of pressure vessel inspection. Weld non-destructive testing equipment is also called ultrasonic weld defect detector. It can quickly, conveniently, non-destructively and accurately detect, locate, evaluate and diagnose various defects (cracks, inclusions, pores, incomplete penetration, incomplete fusion, etc.) inside the workpiece;

[0003] For example, the disclosed utility model provides "a nondestructive testing device for pressure vessel welds with high detection accuracy for pressure vessel inspection and testing", and its announcement number is: CN216386850U. The patent includes a testing device body, the bottom of the testing device body is fixedly connected to a bottom plate, both sides of the bottom of the bottom plate are provided with limit boxes, and the top of the limit box is fixedly connected to a limit frame, which solves the problem of low practicality of existing nondestructive testing equipment for pressure vessel welds. The nondestructive testing equipment for pressure vessel welds has the advantage of high practicality. Although the patent is provided with moving wheels, it is still inconvenient to carry due to its size, and it cannot detect pressure vessels that are far away and inconvenient to transport. Therefore, the purpose of the utility model is to improve the practicality of nondestructive testing equipment for pressure vessel welds through a portable mechanism. Utility Model Content

[0004] The utility model aims to provide a pressure vessel weld nondestructive testing device with high testing accuracy for pressure vessel testing, which has the advantage of being easy to carry and solves the problem that the existing pressure vessel weld nondestructive testing device is inconvenient to carry due to its size although it is provided with moving wheels, and cannot be used to test pressure vessels that are far away and inconvenient to transport.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pressure vessel weld nondestructive testing device with high testing accuracy for pressure vessel testing, comprising a base, a shell fixedly connected to the top of the base, a threaded tube movably connected to the bottom of the base, a screw threadedly connected to the inner cavity of the threaded tube, a suction cup provided at the bottom of the screw, a limit sleeve movably connected to the surface of the screw, connecting pieces fixedly connected to both sides of the limit sleeve, a telescopic rod fixedly connected to the top of the connecting piece, a mounting frame movably connected to the top and bottom of the inner cavity of the shell, protective pads provided on both sides of the inner cavity of the mounting frame, a weld nondestructive testing instrument provided on one side opposite to the mounting frame, a spring fixedly connected to the opposite side of the mounting frame, a fan provided on the left side of the shell, a connecting port provided on the right side of the weld nondestructive testing instrument, a sealing cover provided on the right side of the shell, and a handle provided on the top of the shell.

[0006] Preferably, support pads are provided on both sides of the bottom of the base, and anti-slip bumps are provided on the bottom of the support pads.

[0007] Preferably, a positioning frame is provided at the bottom of the sealing cover, and a screw is connected through the inner cavity of the positioning frame, and one end of the screw passes through the inner cavity of the outer shell.

[0008] Preferably, a first buffer pad is provided on the top and the bottom of the inner cavity of the shell, and a second buffer pad is provided on the opposite side of the mounting frame.

[0009] Preferably, the top and bottom of both sides of the inner cavity of the shell are provided with limiting grooves, the inner cavity of the limiting grooves is movably connected to the limiting blocks, and one side of the limiting blocks is fixedly connected to the surface of the mounting frame.

[0010] Preferably, a protective door panel is provided on the front side of the shell, and a handle is provided on the front side of the protective door panel.

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

[0012] 1. The utility model uses a base, a shell, a threaded tube, a screw, a suction cup, a limit sleeve, a connecting piece, a telescopic rod, a mounting frame, a protective pad, a weld nondestructive testing instrument, a spring, a fan, a connecting port, a sealing cover and a handle to make the pressure vessel weld nondestructive testing equipment have the advantage of being easy to carry, thereby solving the problem that although the existing pressure vessel weld nondestructive testing equipment is provided with moving wheels, it is still inconvenient to carry due to its size and cannot be used to test pressure vessels that are far away and inconvenient to transport.

[0013] 2. The utility model provides a support pad to support the bottom of the base so that the pressure vessel weld nondestructive testing equipment can be stably placed in the use position, provides a positioning frame and screws to fix the bottom of the sealing cover so that it will not rotate at will, provides a first buffer pad and a second buffer pad to buffer between the mounting frame and the inner wall of the shell so that the mounting frame will not shake significantly when hit by external force, provides a limit groove and a limit block to limit one side of the mounting frame, and can limit the movement range of the mounting frame, and provides a protective door panel to protect the components of the inner cavity of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A local enlarged schematic diagram of the middle A;

[0017] Figure 4 For this utility model Figure 2 A local enlarged schematic diagram of point B in the middle.

[0018] In the figure: 1. base; 2. shell; 3. threaded tube; 4. screw; 5. suction cup; 6. limit sleeve; 7. connecting plate; 8. telescopic rod; 9. mounting frame; 10. protective pad; 11. weld nondestructive testing instrument; 12. spring; 13. fan; 14. connecting port; 15. sealing cover; 16. handle; 17. positioning frame; 18. screw; 19. first buffer pad; 20. second buffer pad; 21. protective door panel. Implementation

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The components of the present invention are all common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0021] See also Figure 1-4, a pressure vessel weld nondestructive testing device with high testing accuracy for pressure vessel testing, comprising a base 1, a shell 2 is fixedly connected to the top of the base 1, a threaded tube 3 is movably connected to the bottom of the base 1, a screw 4 is threadedly connected to the inner cavity of the threaded tube 3, a suction cup 5 is arranged at the bottom of the screw 4, a limit sleeve 6 is movably connected to the surface of the screw 4, a connecting piece 7 is fixedly connected to both sides of the limit sleeve 6, a telescopic rod 8 is fixedly connected to the top of the connecting piece 7, a mounting frame 9 is movably connected to the top and bottom of the inner cavity of the shell 2, a protective pad 10 is arranged on both sides of the inner cavity of the mounting frame 9, a weld nondestructive testing instrument 11 is arranged on the opposite side of the mounting frame 9, a spring 12 is fixedly connected to the opposite side of the mounting frame 9, a fan 13 is arranged on the left side of the shell 2, a connecting port 14 is arranged on the right side of the weld nondestructive testing instrument 11, a sealing cover 15 is arranged on the right side of the shell 2, and a handle 16 is arranged on the top of the shell 2.

[0022] Support pads are arranged on both sides of the bottom of the base 1, and anti-skid bumps are arranged on the bottom of the support pads.

[0023] Through the above technical solution, by providing a support pad to support the bottom of the base 1, the pressure vessel weld nondestructive testing equipment can be stably placed in the use position.

[0024] A positioning frame 17 is provided at the bottom of the sealing cover 15 . A screw 18 is connected through the inner cavity of the positioning frame 17 . One end of the screw 18 penetrates into the inner cavity of the housing 2 .

[0025] Through the above technical solution, by providing the positioning frame 17 and the screw 18, the bottom of the sealing cover 15 is fixed so that it will not rotate at will.

[0026] A first buffer pad 19 is disposed on the top and bottom of the inner cavity of the housing 2 , and a second buffer pad 20 is disposed on the opposite side of the mounting frame 9 .

[0027] Through the above technical solution, by providing the first buffer pad 19 and the second buffer pad 20, buffering is performed between the mounting frame 9 and the inner wall of the housing 2, so that the mounting frame 9 will not shake significantly when impacted by external force.

[0028] Limiting grooves are provided at the top and bottom of both sides of the inner cavity of the shell 2 , and the inner cavity of the limiting groove is movably connected to a limiting block, and one side of the limiting block is fixedly connected to the surface of the mounting frame 9 .

[0029] Through the above technical solution, by providing a limiting groove and a limiting block to limit one side of the mounting bracket 9, the moving range of the mounting bracket 9 can be limited.

[0030] A protective door plate 21 is disposed on the front of the housing 2 , and a handle is disposed on the front of the protective door plate 21 .

[0031] Through the above technical solution, the protective door plate 21 is provided to protect the components in the inner cavity of the shell 2.

[0032] When in use, the pressure vessel inspector carries the pressure vessel weld nondestructive testing device to the vicinity of the pressure vessel to be inspected, first places the pressure vessel weld nondestructive testing device on the ground, then rotates the threaded tube 3, the rotation of the threaded tube 3 drives the screw 4 in its inner cavity to move downward, the screw 4 drives the suction cup 5 at its bottom to move downward until it contacts the ground and sucks it tightly, so that the weld nondestructive testing instrument 11 can be firmly placed in the use position, open the protective door panel 21 and the sealing cover 15, and connect the connecting wire on one side of the detection probe to the connecting port 14 on one side of the weld nondestructive testing instrument 11 through the plug, Then place the probe close to the weld on the surface of the pressure vessel and move slowly at the weld. At the same time, the inspector can operate the buttons on the surface of the weld nondestructive testing instrument 11 to start the inspection. When the weld nondestructive testing instrument 11 is hit by external force during the carrying and moving process, the external force will cause the mounting frame 9 to shake up and down. The spring 12 will be squeezed during the shaking of the mounting frame 9, and the spring 12 will give the mounting frame 9 an elastic resistance in the reverse direction. The second buffer pad 20 will also be driven to move during the shaking of the mounting frame 9. The movement of the second buffer pad 20 will hit the first buffer pad 19, thereby reducing the shaking of the mounting frame 9.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel weld nondestructive testing device with high testing accuracy for pressure vessel testing, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the shell (2), the bottom of the base (1) is movably connected to the threaded tube (3), the inner cavity of the threaded tube (3) is threadedly connected to the screw (4), the bottom of the screw (4) is provided with a suction cup (5), the surface of the screw (4) is movably connected to a limit sleeve (6), both sides of the limit sleeve (6) are fixedly connected to connecting pieces (7), the top of the connecting piece (7) is fixedly connected to a telescopic rod (8), the top and bottom of the inner cavity of the shell (2) are movably connected A mounting frame (9) is provided, and pads (10) are provided on both sides of the inner cavity of the mounting frame (9), a weld non-destructive testing instrument (11) is provided on the opposite side of the mounting frame (9), and a spring (12) is fixedly connected to the opposite side of the mounting frame (9), a fan (13) is provided on the left side of the housing (2), a connection port (14) is provided on the right side of the weld non-destructive testing instrument (11), a sealing cover (15) is provided on the right side of the housing (2), and a handle (16) is provided on the top of the housing (2).

2. The pressure vessel weld nondestructive testing equipment with high testing accuracy for pressure vessel testing according to claim 1, characterized in that: Support pads are provided on both sides of the bottom of the base (1), and anti-slip bumps are provided on the bottom of the support pads.

3. The pressure vessel weld nondestructive testing equipment with high testing accuracy for pressure vessel testing according to claim 1, characterized in that: A positioning frame (17) is provided at the bottom of the sealing cover (15), and a screw (18) is connected through the inner cavity of the positioning frame (17), and one end of the screw (18) penetrates into the inner cavity of the outer shell (2).

4. The pressure vessel weld nondestructive testing equipment with high testing accuracy for pressure vessel testing according to claim 1, characterized in that: A first buffer pad (19) is provided at the top and bottom of the inner cavity of the shell (2), and a second buffer pad (20) is provided on the opposite side of the mounting frame (9).

5. The pressure vessel weld nondestructive testing equipment with high testing accuracy for pressure vessel testing according to claim 1, characterized in that: Limiting grooves are provided at the top and bottom of both sides of the inner cavity of the shell (2); the inner cavity of the limiting groove is movably connected to a limiting block; and one side of the limiting block is fixedly connected to the surface of the mounting frame (9).

6. The pressure vessel weld nondestructive testing equipment with high testing accuracy for pressure vessel testing according to claim 1, characterized in that: A protective door panel (21) is provided on the front of the housing (2), and a handle is provided on the front of the protective door panel (21).

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