Omnibearing pressure vessel nondestructive testing device

Abstract

The utility model discloses an omnibearing pressure vessel nondestructive testing device which comprises a base, the base serves as a supporting seat for a pressure vessel, supporting frames are symmetrically and fixedly installed in the middle of the base, the tops of the supporting frames are arranged in an arc shape, and the pressure vessel is placed on the tops of the two supporting frames. A welded pressure container is placed on the tops of the two supporting frames, the inner ring of the arc sealing frame is driven to be attached to and extrude the surface of the pressure container, gas with specified pressure is introduced into the gas inlet pipe through the gas pump system, and a gas value is displayed on the pressure valve on the gas outlet pipe and is displayed on the control panel. The welding position of the pressure container can be subjected to damage detection judgment by determining that the value of the introduced specified pressure gas is the same as that of the gas on the pressure valve, the mode is simple and convenient to operate, the subsequent reprocessing operation on the pressure container is not needed, meanwhile, the gas easily penetrates through small holes in the pressure container, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel damage detection, in particular to an all-round pressure vessel non-destructive detection device. Background Art

[0002] Pressure vessels refer to closed equipment that can hold gas or liquid and bear a certain pressure. Pressure vessels can also be used for mixing and storing raw materials, and they play an important role in many fields such as industry and military industry. In the production process of pressure vessels, the outer shell of the pressure vessel is generally produced separately, and the ends of the pressure vessel are welded to form a whole. Therefore, after the pressure vessel is produced, in order to detect the sealing of the welding position, it is necessary to perform damage detection on the pressure vessel.

[0003] At present, the damage detection method for pressure vessels is mostly to immerse the pressure vessel in water, and judge the sealing of the pressure vessel welding position by whether water enters the pressure vessel. Through this method, if the pressure vessel is damaged, the water inside the pressure vessel needs to be cleaned and discharged later, which is a cumbersome operation. At the same time, when the cavity of the welding damage in the pressure vessel is small, water will not enter the pressure vessel or the amount of water entering the pressure vessel is very small, which is inconvenient for people to observe. Utility Model Content

[0004] The purpose of the utility model is to provide an all-round non-destructive testing device for pressure vessels to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an all-round non-destructive testing device for pressure vessels, comprising a base, the base serving as a support seat for the pressure vessel, a support frame symmetrically fixedly installed in the middle of the base, the top of the support frame is arranged in an arc shape, the pressure vessel is placed on the top of the two support frames, hydraulic rods are symmetrically fixedly installed on both sides of the base, the movable end of the hydraulic rod passes through the base and is fixedly installed with a mounting plate, arc sealing frames are symmetrically fixedly installed at both ends of the mounting plate, the arc sealing frames are arranged corresponding to the welding positions of the pressure vessel, and a sealing gasket is fixedly installed on the inner ring of the arc sealing frame, An air groove is opened in the middle of the arc sealing frame, and the air groove completely covers the welding part on the pressure vessel. An air inlet pipe is fixedly installed at one end of one of the arc sealing frames, and the air inlet pipe is used to inject high-pressure gas. The air inlet pipe is connected to the inside of the air groove. A connecting pipe is fixedly installed between the tops of the two arc sealing frames, and the connecting pipe is connected to the air grooves inside the two arc sealing frames. An air outlet pipe is fixedly installed at one end of the other arc sealing frame away from the connecting pipe, and the air outlet pipe is connected to the inside of the air groove here. A pressure valve is fixedly installed on the outside of the air outlet pipe, and the pressure valve is used to detect the pressure of the gas inside the air outlet pipe.

[0006] As a further preferred embodiment of the present technical solution, the arc angle of the arc sealing frame is ninety-five degrees.

[0007] As a further preferred embodiment of the present technical solution, a fixing plate is fixedly installed in the middle of the support frame, and through holes are symmetrically provided at both ends of the fixing plate. A sliding rod is slidably installed inside the through holes, and a contact plate is fixedly installed on the top of the sliding rod. The contact plate can be set through the support frame, and the top of the contact plate is set in an arc shape. A buffer spring is sleeved on the outer side of one end of the sliding rod away from the contact plate, one end of the buffer spring is fixedly connected to the lower surface of the fixing plate, and the other end of the buffer spring is fixedly connected to the bottom of the sliding rod.

[0008] As a further preferred embodiment of the present technical solution, a positioning plate is fixedly mounted on one side of the support frame, and an inner wall of the positioning plate matches the shape of an end portion of the pressure vessel.

[0009] As a further preferred embodiment of the present technical solution, a limiting rod is symmetrically fixedly installed on one side of the mounting plate, a limiting hole is provided at a position of the base corresponding to the limiting rod, and the limiting rod is slidably connected to the limiting hole.

[0010] As a further preferred embodiment of the present technical solution, a bracket is fixedly installed in the middle of the base, a servo motor is fixedly installed on the top of the bracket, a rubber wheel is fixedly installed on the output end of the servo motor, and the rubber wheel is arranged in extrusion contact with the surface of the pressure vessel.

[0011] The utility model provides a comprehensive nondestructive testing device for pressure vessels, which has the following beneficial effects:

[0012] (1) The utility model places the welded pressure vessel on the top of two support frames, drives the inner ring of the arc sealing frame to fit and squeeze the surface of the pressure vessel, introduces gas of specified pressure into the air inlet pipe through the air pump system, and displays a gas value on the pressure valve on the air outlet pipe and on the control panel. When the gas of specified pressure is different from the gas value on the pressure valve, it indicates that a leak occurs at the welding position on the pressure vessel, and the welding position of the pressure vessel can be detected. This method is relatively simple to operate and does not require subsequent processing of the pressure vessel.

[0013] (2) The utility model introduces a closed pressurized gas into the welding position on the pressure vessel, and the gas can easily pass through the small holes on the pressure vessel, thereby improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the overall structural diagrams of the utility model;

[0015] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall explosion structure of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0018] In the figure: 1. base; 2. support frame; 3. hydraulic rod; 4. mounting plate; 5. arc sealing frame; 6. sealing gasket; 7. air groove; 8. air inlet pipe; 9. connecting pipe; 10. air outlet pipe; 11. pressure valve; 12. fixing plate; 13. perforation; 14. sliding rod; 15. contact plate; 16. buffer spring; 17. positioning plate; 18. limit rod; 19. limit hole; 20. bracket; 21. servo motor; 22. rubber wheel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, an all-round non-destructive testing device for pressure vessels includes a base 1, the base 1 serves as a support seat for the pressure vessel, a support frame 2 is symmetrically fixedly installed in the middle of the base 1, the top of the support frame 2 is arranged in an arc shape, and the pressure vessel is placed on the top of the two support frames 2, hydraulic rods 3 are symmetrically fixedly installed on both sides of the base 1, and the movable end of the hydraulic rod 3 passes through the base 1 and is fixedly installed with a mounting plate 4, arc sealing frames 5 are symmetrically fixedly installed at both ends of the mounting plate 4, the arc sealing frames 5 are arranged corresponding to the welding positions of the pressure vessel, and a sealing gasket 6 is fixedly installed on the inner ring of the arc sealing frame 5, and the sealing gasket 6 squeezes the arc sealing frame 5 and the surface of the pressure vessel to form the condition of internal sealing of the air groove 7, and an air groove 7 is opened in the middle of the arc sealing frame 5, and the air groove 7 is completely A welding part on the pressure vessel is covered, wherein an air inlet pipe 8 is fixedly installed at one end of one of the arc sealing frames 5, and gas of specified pressure is introduced into the air inlet pipe 8 through an air pump system. The air inlet pipe 8 is used to inject high-pressure gas, and the air inlet pipe 8 is connected to the inside of the air groove 7. A connecting pipe 9 is fixedly installed between the tops of the two arc sealing frames 5, and the connecting pipe 9 is connected to the air grooves 7 inside the two arc sealing frames 5. An air outlet pipe 10 is fixedly installed at one end of the other side arc sealing frame 5 away from the connecting pipe 9, and the air outlet pipe 10 is connected to the inside of the air groove 7 here. A pressure valve 11 is fixedly installed on the outside of the air outlet pipe 10, and the pressure valve 11 is used to detect the pressure of the gas inside the air outlet pipe 10. The pressure valve 11 is electrically connected to the control panel through a wire, and is used to display the value of the pressure valve 11.

[0021] like Figures 1 to 4 As shown, the arc angle of the arc sealing frame 5 is ninety-five degrees.

[0022] The entire pressure vessel can be inspected by rotating the pressure vessel half a turn, without rotating the pressure vessel multiple times.

[0023] like Figures 1 to 4 As shown, a fixing plate 12 is fixedly installed in the middle of the support frame 2, and through holes 13 are symmetrically opened at both ends of the fixing plate 12. A sliding rod 14 is slidably installed inside the through hole 13, and a contact plate 15 is fixedly installed on the top of the sliding rod 14. The contact plate 15 can be set through the support frame 2, and the top of the contact plate 15 is set in an arc shape. A buffer spring 16 is sleeved on the outer side of one end of the sliding rod 14 away from the contact plate 15, one end of the buffer spring 16 is fixedly connected to the lower surface of the fixing plate 12, and the other end of the buffer spring 16 is fixedly connected to the bottom of the sliding rod 14.

[0024] When the pressure vessel is placed, the pressure vessel will first contact the contact plate 15 and exert downward pressure on the contact plate 15 . The placement of the pressure vessel is buffered by the buffer spring 16 , ensuring that the pressure vessel is placed stably and smoothly.

[0025] like Figures 1 to 4 As shown, a positioning plate 17 is fixedly mounted on one side of the support frame 2, and the inner wall of the positioning plate 17 matches the shape of the end of the pressure vessel.

[0026] The positions of both ends of the pressure vessel can be limited to ensure that the gas groove 7 completely covers the welding position on the pressure vessel.

[0027] like Figures 1 to 4 As shown, a limiting rod 18 is symmetrically fixedly installed on one side of the mounting plate 4, and a limiting hole 19 is provided at a position corresponding to the limiting rod 18 on the base 1, and the limiting rod 18 is slidably connected to the limiting hole 19.

[0028] When the hydraulic rod 3 operates to drive the inner ring of the arc sealing frame 5 to fit and press the surface of the pressure vessel, the position of the arc sealing frame 5 can be positioned to prevent the arc sealing frame 5 from being inaccurately aligned.

[0029] like Figures 1 to 4 As shown, a bracket 20 is fixedly installed in the middle of the base 1, a servo motor 21 is fixedly installed on the top of the bracket 20, and a rubber wheel 22 is fixedly installed at the output end of the servo motor 21. The rubber wheel 22 is arranged in extrusion contact with the surface of the pressure vessel.

[0030] The servo motor 21 can drive the rubber wheel 22 to rotate, and the pressure vessel can be driven to rotate by the extrusion and friction between the rubber wheel 22 and the surface of the pressure vessel, so as to detect the pressure vessel as a whole.

[0031] The utility model provides a comprehensive nondestructive testing device for pressure vessels, and the specific working principle is as follows:

[0032] When the device is in use, the welded pressure vessel is placed on the top of the two support frames 2. During this process, the pressure vessel will first contact the contact plate 15 and squeeze the contact plate 15 downward, driving the slide bar 14 to slide inside the perforation 13, and the placement of the pressure vessel is buffered by the buffer spring 16 to ensure that the pressure vessel is placed stably and smoothly. Then, the two hydraulic rods 3 are controlled to operate simultaneously, which will drive the inner circle of the arc sealing frame 5 to fit and squeeze the surface of the pressure vessel to achieve the sealing inside the gas groove 7. Then, the gas of specified pressure is introduced into the inlet pipe 8 through the air pump system, and a gas value is displayed on the pressure valve 11 on the outlet pipe 10 and controlled. The panel displays that when the gas at the specified pressure is different from the gas value on the pressure valve 11, it will indicate that there is a leak at the welding position on the pressure vessel, and the welding position of the pressure vessel can be detected. When the gas at the specified pressure is the same as the gas value on the pressure valve 11, it will indicate that there is no leak at the welding position on the pressure vessel. Then, the hydraulic rod 3 is canceled to control the extrusion of the inner ring of the arc sealing frame 5 and the surface of the pressure vessel, and the rubber wheel 22 is driven to rotate by the servo motor 21. The pressure vessel will be driven to rotate through the extrusion and friction between the rubber wheel 22 and the surface of the pressure vessel. In the same way as above, another section of the pressure vessel can be detected.

[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 comprehensive non-destructive testing device for pressure vessels, Features: The invention comprises a base (1), wherein the base (1) serves as a support seat for a pressure vessel, a support frame (2) is symmetrically fixedly installed in the middle of the base (1), the top of the support frame (2) is arranged in an arc shape, and the pressure vessel is placed on the top of the two support frames (2), hydraulic rods (3) are symmetrically fixedly installed on both sides of the base (1), the movable end of the hydraulic rod (3) passes through the base (1) and is fixedly installed with a mounting plate (4), arc sealing frames (5) are symmetrically fixedly installed at both ends of the mounting plate (4), the arc sealing frames (5) are arranged corresponding to the welding position of the pressure vessel, a sealing gasket (6) is fixedly installed on the inner ring of the arc sealing frame (5), an air groove (7) is opened in the middle of the arc sealing frame (5), and the air groove (7) completely covers the pressure vessel. At a welding position on the container, an air inlet pipe (8) is fixedly installed at one end of one of the arc sealing frames (5), the air inlet pipe (8) is used to inject high-pressure gas, and the air inlet pipe (8) is connected to the inside of the air groove (7). A connecting pipe (9) is fixedly installed between the tops of the two arc sealing frames (5), and the connecting pipe (9) is connected to the air grooves (7) inside the two arc sealing frames (5). An air outlet pipe (10) is fixedly installed at one end of the other arc sealing frame (5) away from the connecting pipe (9), and the air outlet pipe (10) is connected to the inside of the air groove (7) at this location. A pressure valve (11) is fixedly installed on the outside of the air outlet pipe (10), and the pressure valve (11) is used to detect the pressure of the gas inside the air outlet pipe (10).

2. A comprehensive nondestructive testing device for pressure vessels according to claim 1, Features: The arc angle of the circular arc sealing frame (5) is ninety-five degrees.

3. The omnidirectional nondestructive testing device for pressure vessels according to claim 1, Features: A fixing plate (12) is fixedly installed in the middle of the support frame (2), and through holes (13) are symmetrically opened at both ends of the fixing plate (12). A sliding rod (14) is slidably installed inside the through hole (13), and a contact plate (15) is fixedly installed on the top of the sliding rod (14). The contact plate (15) can pass through the support frame (2) and is arranged. The top of the contact plate (15) is arranged in an arc shape. A buffer spring (16) is sleeved on the outer side of one end of the sliding rod (14) away from the contact plate (15), one end of the buffer spring (16) is fixedly connected to the lower surface of the fixing plate (12), and the other end of the buffer spring (16) is fixedly connected to the bottom of the sliding rod (14).

4. The omnidirectional nondestructive testing device for pressure vessels according to claim 3, Features: A positioning plate (17) is fixedly mounted on one side of the support frame (2), and the inner wall of the positioning plate (17) matches the shape of the end of the pressure vessel.

5. The omnidirectional nondestructive testing device for pressure vessels according to claim 1, Features: A limiting rod (18) is symmetrically fixedly mounted on one side of the mounting plate (4); a limiting hole (19) is provided on the base (1) at a position corresponding to the limiting rod (18); and the limiting rod (18) is slidably connected to the limiting hole (19).

6. The omnidirectional nondestructive testing device for pressure vessels according to claim 1, Features: A bracket (20) is fixedly mounted in the middle of the base (1), a servo motor (21) is fixedly mounted on the top of the bracket (20), a rubber wheel (22) is fixedly mounted on the output end of the servo motor (21), and the rubber wheel (22) is arranged in extrusion contact with the surface of the pressure container.

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