Non-destructive testing equipment for welding seam of pressure vessel
By injecting water into the sink of the pressure vessel weld detection equipment as a coupling agent, the problem of air layer interference in ultrasonic detection is solved, the detection accuracy is improved, and the automatic adjustment function is used to adapt to pressure vessels of different sizes.
Patent Information
- Application Number
- CN202420890168.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-26
AI Technical Summary
When using ultrasonic detection technology to detect the welds of pressure vessels, ultrasonic waves are susceptible to interference from the air layer, affecting the accuracy of the detection results.
A detection device including a sink and a water tank is designed. By injecting water into the sink as a coupling agent, it avoids the air layer interference between the ultrasonic probe and the pressure vessel, and automatically adjusts the height and position of the pressure vessel through moving components and adjusting components to adapt to pressure vessels of different sizes.
It effectively avoids interference from the air layer on ultrasonic propagation, improves the accuracy of weld detection, and through automatic adjustment function, it is suitable for pressure vessels of various sizes, simplifying the detection process.
Smart Images
Figure CN222636129U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of weld detection, in particular to nondestructive detection equipment for welds of pressure vessels. Background Art
[0002] Pressure vessels refer to closed equipment that contains gas or liquid and bears a certain pressure. Pressure vessels can be divided into small pressure vessels and large pressure vessels according to their size. Large pressure vessels are usually made of multiple sections of cylinders welded together due to their large cylinder volume. This results in multiple welds on large pressure vessels. To ensure the safety and effectiveness of use, it is usually necessary to detect whether there are cracks on the surface of the welds of large pressure vessels before they leave the factory and during use. When ultrasonic testing is used to detect the welds of pressure vessels, there is a certain distance between the ultrasonic testing probe and the welds of the pressure vessel. When the ultrasonic wave propagates at this distance, the air layer interferes with the ultrasonic wave propagation, which will have a certain impact on the test data.
[0003] Therefore, a nondestructive testing device for pressure vessel welds is proposed. Utility Model Content
[0004] The utility model aims to provide a nondestructive testing device for pressure vessel welds, so as to solve the problem proposed in the above background technology that when ultrasonic weld testing technology is used to test welds, ultrasonic waves are easily disturbed by air layers, which in turn affects the test results.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nondestructive testing device for pressure vessel welds, comprising a workbench, a test box and a water tank are arranged at the upper end of the workbench, a water tank is arranged inside the test box, the water tank and the water tank are connected by a water pipe, a moving component and a wiper component are arranged inside the test box, the moving component comprises a slider and a test frame, the slider is slidably arranged inside the test box, the test frame and the slider are fixedly arranged, an ultrasonic probe is fixedly arranged on the upper end of the test frame, the test frame and the ultrasonic probe are both arranged inside the water tank, the wiper component comprises a mounting rod and a rubber scraper, the mounting rod is arranged on the upper part of the water tank, the rubber scraper is arranged on the upper end of the mounting rod, an adjustment component is arranged on the upper end of the workbench, the adjustment component comprises a moving frame and a roller, the moving frame is arranged in two groups and is slidably arranged at the upper end of the workbench, and the roller is arranged on the upper part of the moving frame and is rotatably arranged with the moving frame.
[0006] Preferably, a slide groove is symmetrically arranged inside the detection box, a slider is slidably arranged inside the slide groove, a first screw rod is arranged inside the slide groove, and the first screw rod is threadedly connected to the slider.
[0007] Preferably, both ends of the first screw rod are configured to be cylindrical and rotatably arranged inside the detection box, one end of the first screw rod is provided with a pulley, the pulley is connected to the third motor through a belt, and the third motor is fixed to the workbench.
[0008] Preferably, an electromagnetic control valve and a water pump are provided at the upper end of the workbench, one end of the electromagnetic control valve is connected with the water tank through a water pipe, the other end of the electromagnetic control valve is connected with the water inlet through the water pipe, one end of the water pump is connected with the water tank through the water pipe, the other end of the water pump is connected with the drain through the water pipe, and the water inlet and the drain are arranged at the bottom of one side of the sink.
[0009] Preferably, a sliding rod is provided at the upper end of the workbench, and at least two groups of sliding rods are provided. The sliding rod is arranged inside the movable frame and is slidably connected. A bidirectional screw rod is arranged inside the movable frame and is threadedly connected to the bidirectional screw rod. Both ends of the bidirectional screw rod are arranged in a cylindrical shape and are rotatably arranged inside the two ends of the workbench. A first motor is provided at one end of the bidirectional screw rod, and the first motor is arranged on one side of the workbench.
[0010] Preferably, a second motor is arranged at one end of the movable frame, an output shaft of the second motor is arranged at one end of a rotating roller, and a plurality of rubber rings are arranged on the outer side of the rotating roller.
[0011] Preferably, a photoelectric switch is provided on an upper end of one side of the detection box, and an image collector is provided on an inner side of the water tank.
[0012] Preferably, a mounting rod is provided at the upper end of the interior of the water tank, and both ends of the mounting rod are fixed to the two ends of the detection box by screws. A card slot is provided inside the mounting rod, and a card strip is provided at the lower end of the rubber scraper and is arranged inside the card slot.
[0013] Beneficial effects of the utility model:
[0014] 1. The utility model designs a water tank and a water tank. When performing weld inspection, the bottom of the pressure vessel is lowered into the water tank, and water is injected into the water tank as a coupling agent, so as to avoid interference of the air layer between the ultrasonic probe and the pressure vessel on ultrasonic propagation during inspection, thereby improving the accuracy of the inspection result of the ultrasonic probe.
[0015] 2. The utility model automatically adjusts the height of the pressure vessel by designing a moving component and an adjusting component, so that the equipment is convenient for applying the pressure vessels of various sizes to weld detection.
[0016] 3. The utility model designs a scraper assembly to scrape off the water carried out from the water tank on the surface of the pressure vessel, thereby preventing too much water from adhering to the surface and spilling onto other parts of the equipment, and at the same time facilitates rapid air drying of the surface of the pressure vessel after the inspection is completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 The utility model is a kind of pressure vessel weld nondestructive testing equipment overall three-dimensional Figure 1 ;
[0019] Figure 2 The utility model is a kind of pressure vessel weld nondestructive testing equipment overall three-dimensional Figure 2 ;
[0020] Figure 3 The utility model is a pressure vessel weld nondestructive testing device Figure 1 Sectional view at AA;
[0021] Figure 4 The utility model is a pressure vessel weld nondestructive testing device Figure 3 Enlarged schematic diagram of the structure at point B in the middle.
[0022] The markings in the figure are: 1. workbench; 2. detection box; 3. water tank; 4. water inlet; 5. electromagnetic control valve; 6. drain outlet; 7. water pump; 8. water tank; 9. slide rod; 10. movable frame; 11. bidirectional screw rod; 12. first motor; 13. roller; 14. rubber ring; 15. second motor; 16. slide groove; 17. slider; 18. detection frame; 19. ultrasonic probe; 20. image collector; 21. photoelectric switch; 22. first screw rod; 23. third motor; 24. pulley; 25. mounting rod; 26. rubber scraper; 27. pressure vessel. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] like Figures 1 to 4 As shown, a specific embodiment of the utility model provides a nondestructive testing device for pressure vessel welds, including a workbench 1, a test box 2 and a water tank 8 are arranged at the upper end of the workbench 1, a water tank 3 is arranged inside the test box 2, the water tank 3 is connected to the water tank 8 through a water pipe, a moving component and a wiper component are arranged inside the test box 2, the moving component includes a slider 17 and a test frame 18, the slider 17 is slidably arranged inside the test box 2, the test frame 18 and the slider 17 are fixedly arranged, an ultrasonic probe 19 is fixedly arranged on the upper end of the test frame 18, the test frame 18 and the ultrasonic probe 19 are both arranged inside the water tank 3, the wiper component includes a mounting rod 25 and a rubber scraper 26, the mounting rod 25 is arranged on the upper part of the water tank 3, the rubber scraper 26 is arranged on the upper end of the mounting rod 25, an adjustment component is arranged on the upper end of the workbench 1, the adjustment component includes a moving frame 10 and a roller 13, the moving frame 10 is arranged in two groups and is slidably arranged on the upper end of the workbench 1, and the roller 13 is arranged on the upper part of the moving frame 10 and is rotatably arranged with the moving frame 10.
[0026] By adopting the above technical scheme, the utility model is designed with a water tank 3, and water is injected into the water tank 3 as a coupling agent to avoid the air layer between the ultrasonic probe 19 and the pressure vessel 27 from interfering with the ultrasonic propagation during detection, thereby improving the accuracy of the detection result of the ultrasonic probe 19. By setting a moving component, it is convenient to adjust the position of the ultrasonic probe 19, so that the ultrasonic probe 19 can be moved and adjusted to the bottom of multiple welding positions of the pressure vessel 27. By setting an adjusting component, the adjusting component can drive the pressure vessel 27 to roll to adjust the position of the pressure vessel 27 for weld detection. At the same time, the adjusting component can regulate the position of the pressure vessel 27 to fall into the water tank 3. By setting a wiper component, the water carried out from the water tank 3 on the surface of the pressure vessel 27 is scraped off to avoid spilling on other parts of the equipment. At the same time, it is convenient for the surface of the pressure vessel 27 to be quickly dried after the detection is completed.
[0027] Specifically, Figure 2 and Figure 4 As shown, a slide groove 16 is symmetrically arranged inside the detection box 2, a slider 17 is slidably arranged inside the slide groove 16, a first screw rod 22 is arranged inside the slide groove 16, the first screw rod 22 is threadedly connected to the slider 17, both ends of the first screw rod 22 are arranged in a cylindrical shape and are rotatably arranged inside the detection box 2, a pulley 24 is arranged at one end of the first screw rod 22, the pulley 24 is connected to the third motor 23 through a belt, and the third motor 23 is fixed to the workbench 1.
[0028] By adopting the above technical solution, the third motor 23 runs and rotates to drive the two groups of first screw rods 22 to rotate in the same direction and at the same speed through the belt connection, thereby realizing the electric control and adjustment of the position of the detection frame 18 inside the water tank 3.
[0029] Specifically, Figure 2 As shown, an electromagnetic control valve 5 and a water pump 7 are arranged at the upper end of the workbench 1, one end of the electromagnetic control valve 5 is connected with the water tank 8 through a water pipe, and the other end of the electromagnetic control valve 5 is connected with the water inlet 4 through a water pipe, one end of the water pump 7 is connected with the water tank 8 through a water pipe, and the other end of the water pump 7 is connected with the drain 6 through a water pipe, and the water inlet 4 and the drain 6 are arranged at the bottom of one side of the water tank 3.
[0030] By adopting the above technical solution, the overall water level inside the water tank 8 is higher than the water tank 3. Due to the liquid level difference, the water inside the water tank 8 flows into the water tank 3 when the electromagnetic control valve 5 is opened and closed. After the detection is completed, the water pump 7 runs to pump the water inside the water tank 3 back into the water tank 8. Under the condition of good water quality, the water is recycled, which is beneficial to saving water resources.
[0031] Specifically, Figure 1 and Figure 2 As shown, a slide rod 9 is provided at the upper end of the workbench 1, and at least two groups of slide rods 9 are provided. The slide rod 9 is arranged inside the moving frame 10 and is slidably connected. A bidirectional screw rod 11 is provided inside the moving frame 10 and is threadedly connected to the bidirectional screw rod 11. Both ends of the bidirectional screw rod 11 are arranged in a cylindrical shape and are rotatably arranged inside the two ends of the workbench 1. A first motor 12 is provided at one end of the bidirectional screw rod 11, and the first motor 12 is arranged on one side of the workbench 1.
[0032] By adopting the above technical solution, the first motor 12 drives the bidirectional screw 11 to rotate, so that the two groups of mobile frames 10 can move synchronously in opposite directions to adjust the distance between them, and the position of the rubber ring 14 supported on the outside of the pressure vessel 27 is changed to adjust the rise and fall of the pressure vessel 27. The slide bar 9 is used to assist the balance and stability of the mobile frame 10 during movement.
[0033] Specifically, Figure 2As shown, a second motor 15 is disposed at one end of the moving frame 10 , an output shaft of the second motor 15 is disposed at one end of a rotating roller 13 , and a plurality of rubber rings 14 are disposed on the outer side of the rotating roller 13 .
[0034] By adopting the above technical solution, the rubber ring 14 reduces the damage to the outer side of the pressure container 27 during rotation, and the second motor 15 provides power for the roller 13 and the rubber ring 14 to rotate at the upper end of the moving frame 10 .
[0035] Specifically, Figure 2 and Figure 4 As shown, a photoelectric switch 21 is disposed on the upper end of one side of the detection box 2 , and an image collector 20 is disposed on the inner side of the water tank 3 .
[0036] By adopting the above technical solution, a photoelectric switch 21 is set as the lowest position detection point of the pressure vessel 27 to avoid the pressure vessel 27 hitting the detection box 2 when it falls. An image collector 20 is set to collect and identify the position of the lower part of the pressure vessel 27 descending to the inside of the water tank 3. The pressure vessel 27 stops descending after it falls into place, and the electromagnetic control valve 5 opens and closes to inject water into the water tank 3. The image collector 20 stops injecting water after recognizing that the water surface overflows the weld, and then the weld detection process is carried out.
[0037] Specifically, Figure 4 As shown, a mounting rod 25 is provided at the upper end of the interior of the water tank 3, and both ends of the mounting rod 25 are fixed to the two ends of the detection box 2 by screws. A card slot is provided inside the mounting rod 25, and a card strip is provided at the lower end of the rubber scraper 26 and is arranged inside the card slot.
[0038] By adopting the above technical solution, the mounting rod 25 and the rubber scraper strip 26 can be detachably arranged, so that the rubber scraper strip 26 which is severely worn due to long-term use can be replaced conveniently.
[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0040] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A pressure vessel weld nondestructive testing device, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is provided with a detection box (2) and a water tank (8); a water tank (3) is provided inside the detection box (2); the water tank (3) and the water tank (8) are connected via a water pipe; a moving component and a wiper component are provided inside the detection box (2); the moving component comprises a slider (17) and a detection frame (18); the slider (17) is slidably arranged inside the detection box (2); the detection frame (18) and the slider (17) are fixedly arranged; an ultrasonic probe (19) is fixedly arranged on the upper end of the detection frame (18); the detection frame (18) and the ultrasonic probe (19) are connected to each other via a water pipe. The wave probes (19) are all arranged inside the water tank (3); the water scraping assembly comprises a mounting rod (25) and a rubber scraping strip (26); the mounting rod (25) is arranged on the upper part of the water tank (3); the rubber scraping strip (26) is arranged on the upper end of the mounting rod (25); an adjustment assembly is arranged on the upper end of the workbench (1); the adjustment assembly comprises a moving frame (10) and a roller (13); the moving frame (10) is arranged in two groups and is slidably arranged on the upper end of the workbench (1); the roller (13) is arranged on the upper part of the moving frame (10) and is rotatably arranged with the moving frame (10).
2. The pressure vessel weld nondestructive testing equipment according to claim 1, characterized in that: A slide groove (16) is symmetrically arranged inside the detection box (2), a slider (17) is slidably arranged inside the slide groove (16), a first screw rod (22) is arranged inside the slide groove (16), and the first screw rod (22) is threadedly connected to the slider (17).
3. The pressure vessel weld nondestructive testing equipment according to claim 2, characterized in that: Both ends of the first screw rod (22) are arranged in a cylindrical shape and are rotatably arranged inside the detection box (2); one end of the first screw rod (22) is provided with a pulley (24); the pulley (24) is connected to the third motor (23) via a belt; and the third motor (23) is fixedly arranged on the workbench (1).
4. The pressure vessel weld nondestructive testing equipment according to claim 3, characterized in that: An electromagnetic control valve (5) and a water pump (7) are arranged at the upper end of the workbench (1); one end of the electromagnetic control valve (5) is connected to the water tank (8) through a water pipe, and the other end of the electromagnetic control valve (5) is connected to the water inlet (4) through a water pipe; one end of the water pump (7) is connected to the water tank (8) through a water pipe, and the other end of the water pump (7) is connected to the water outlet (6) through a water pipe; the water inlet (4) and the water outlet (6) are arranged at the bottom of one side of the water tank (3).
5. The pressure vessel weld nondestructive testing equipment according to claim 4, characterized in that: A slide bar (9) is arranged at the upper end of the workbench (1), and at least two groups of the slide bars (9) are arranged inside a movable frame (10) and are slidably connected. A bidirectional screw rod (11) is arranged inside the movable frame (10) and is threadedly connected to the bidirectional screw rod (11). Both ends of the bidirectional screw rod (11) are arranged in a cylindrical shape and are rotatably arranged inside the two ends of the workbench (1). A first motor (12) is arranged at one end of the bidirectional screw rod (11), and the first motor (12) is arranged on one side of the workbench (1).
6. The pressure vessel weld nondestructive testing equipment according to claim 5, characterized in that: A second motor (15) is arranged at one end of the moving frame (10), an output shaft of the second motor (15) is arranged at one end of a rotating roller (13), and a plurality of rubber rings (14) are arranged on the outer side of the rotating roller (13).
7. The pressure vessel weld nondestructive testing equipment according to claim 1, characterized in that: A photoelectric switch (21) is provided at the upper end of one side of the detection box (2), and an image collector (20) is provided at one side inside the water tank (3).
8. The pressure vessel weld nondestructive testing equipment according to claim 1, characterized in that: A mounting rod (25) is provided at the upper end of the water tank (3), and the two ends of the mounting rod (25) are fixed to the two ends of the detection box (2) by screws. A card slot is provided inside the mounting rod (25), and a card strip is provided at the lower end of the rubber scraper (26) and is arranged inside the card slot.