A high-pressure container weld nondestructive testing device and method

Abstract

The application relates to the technical field of detection devices, and discloses a high-pressure container weld nondestructive detection device and a detection method, which comprises a base and a high-pressure container tank, the high-pressure container tank is arranged above the base, and the circumferential outer surface of the high-pressure container tank is provided with a weld. The contact wheel is in abutment with the weld, the circular-arc contact lever drives the rocker plate to rotate, the rocker plate drives the T-shaped pin column to move downwards through the second guide groove and the second guide column, the T-shaped pin column drives the rubber friction wheel to separate from the surface of the high-pressure container tank through the C-shaped plate, an electric signal is sent through the pressure sensor, one brake assembly at the end of the rubber supporting wheel is operated, the rubber supporting wheel is braked, the high-pressure container tank is stopped from rotating, the position of the weld can be automatically located through the device, manual operation for locating the position of the weld is not needed, and the detection efficiency is greatly improved when a batch of high-pressure container tanks are detected.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a non-destructive testing device and method for weld seams of high-pressure vessels. Background Technology

[0002] Laser imaging-based high-pressure vessel weld inspection equipment represents a highly efficient and non-destructive testing method widely used in the inspection of welds on high-pressure vessels. High-pressure vessels typically withstand significant internal and external pressures, therefore the quality of their welds directly impacts the vessel's safety. To ensure weld quality, regular non-destructive testing is necessary. Laser imaging technology, due to its ability to magnify weld structures and effectively detect welding defects (such as cracks, porosity, and slag inclusions), has found widespread application in this field.

[0003] Existing laser imaging high-pressure vessel weld inspection devices require manual rotation of the high-pressure vessel to align the weld seam with the laser generator module. This manual positioning is too slow and cumbersome, significantly reducing inspection efficiency when inspecting high-pressure vessel tanks in batches. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a non-destructive testing device and method for weld seams in high-pressure vessels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A non-destructive testing device for weld seams in high-pressure vessels includes a base and a high-pressure vessel tank. The high-pressure vessel tank is positioned above the base, and a weld seam is formed on its outer circumferential surface. Multiple support seats are fixedly mounted at equal intervals on the upper surface of the base. Two rubber support wheels are symmetrically and rotatably mounted on the inner walls of each support seat near its top. The high-pressure vessel tank is positioned above the two rubber support wheels, abutting against their outer surfaces. Two arc-shaped grooves are symmetrically formed on the outer surfaces of opposite sides of the middle support seat. Arc-shaped sliders are slidably mounted on the inner walls of each of the two arc-shaped grooves, and the two arc-shaped sliders are rotatably mounted between each other. The device includes a rotating shaft with a rubber friction wheel fixedly mounted on its outer surface. The rubber friction wheel abuts against the outer circumferential surface of the high-pressure container. A T-shaped pin is slidably inserted into the bottom wall of the support base. A C-shaped plate is fixedly mounted on the top of the T-shaped pin. Horizontal grooves are formed on the outer surfaces of opposite ends of the C-shaped plate. The two ends of the rotating shaft are slidably mounted against the inner walls of the two horizontal grooves. A second support is fixedly mounted on the bottom wall of one end of the support base. An arc-shaped contact rod is rotatably mounted between the inner walls of the second support. A contact wheel is rotatably mounted on the inner wall of the top of the arc-shaped contact rod, and the contact wheel abuts against the outer surface of the high-pressure container.

[0007] As a further embodiment of the present invention, a first support is fixedly installed on the bottom wall of the support base, and a rocker is rotatably installed between the inner walls of the first support. A first guide groove is provided at one end of the rocker near the arc-shaped contact rod, and a first guide post is fixedly installed at the bottom end of the arc-shaped contact rod. The first guide post is slidably installed with the inner wall of the first guide groove.

[0008] As a further embodiment of the present invention, a second guide groove is provided at the other end of the rocker, and a second guide post is fixedly installed on the outer surface of the T-shaped pin near the top. The second guide post is slidably installed with the inner wall of the second guide groove. A spring is sleeved on the outer surface of the T-shaped pin near the bottom. The bottom end of the spring is fixedly connected to the bottom wall of the support base, and the top end of the spring is fixedly connected to the outer surface of the T-shaped pin near the top.

[0009] As a further embodiment of the present invention, a second pulley is fixedly installed at one end of the rotating shaft through the outer surface of one of the arc-shaped sliders. A first bevel gear is rotatably installed on the upper surface of one end of the support base. A first pulley is fixedly installed at the rotation center of one end of the first bevel gear. A belt is fitted on the outer surfaces of the first pulley and the second pulley. A second bevel gear is also rotatably installed on the upper surface of one end of the support base. The first bevel gear and the second bevel gear mesh with each other. The arc-shaped groove and the first pulley are located at the same center. A pressure sensor is fixedly installed at the bottom end of the arc-shaped slider. A brake assembly is provided at one end of the rubber support wheel near the rubber friction wheel. The pressure sensor is electrically connected to the brake assembly.

[0010] As a further embodiment of the present invention, two push rods are symmetrically slidably mounted on the upper surface of the plurality of support seats. A rack is fixedly mounted on the upper surface of the push rod near the first bevel gear. A gear is fixedly mounted on the rotation center of one end of the second bevel gear. The gear meshes with the rack. A hydraulic telescopic rod is fixedly mounted on the end face of one end of one of the support seats. The telescopic end of the hydraulic telescopic rod is fixedly connected to one end of the two push rods.

[0011] As a further embodiment of the present invention, a mounting frame is rotatably mounted on the outer surface of one side of each of the multiple support seats, and V-shaped wheels are rotatably mounted on the inner walls of opposite ends of the mounting frame. Multiple fixing rods are fixedly mounted at equal intervals between the two push rods, and a drive rod is rotatably mounted on the upper surface of each of the multiple fixing rods. The top end of the drive rod is rotatably mounted to the lower surface of the mounting frame, and the outer surface of the V-shaped wheel abuts against the outer surface of the high-pressure container tank.

[0012] As a further embodiment of the present invention, a motion support is provided on the upper surface of one end of the base, and an X-axis moving component, a Y-axis moving component, and a Z-axis moving component are provided inside the motion support.

[0013] As a further embodiment of the present invention, the motion support is provided with a square tube telescopic tube inside, and a laser generating module is fixedly installed at the telescopic end of the square tube telescopic tube. The laser generating module is located inside the high-pressure container tank.

[0014] As a further embodiment of the present invention, a lifting frame is provided on the upper surface of the base, a telescopic component is provided inside the lifting frame, an imaging module is provided at the end of the telescopic component, and an acquisition module is provided inside the imaging module.

[0015] A method for using a non-destructive testing device for weld seams in high-pressure vessels includes the following steps:

[0016] S1: The X-axis moving component, Y-axis moving component and Z-axis moving component on the motion support drive the square tube telescopic tube to the position of the central axis of the high pressure container tank. The square tube telescopic tube drives the laser generating module to the position of the central axis of the high pressure container tank. The up and down movement of the lifting frame and the telescopic component inside the lifting frame drive the imaging module to a position close to the laser generating module and aligned with it.

[0017] S2: The high-pressure container is transported to the V-shaped wheel on the support base by an external conveying device, and then the movement of the conveying device drives the high-pressure container to move along the surface of the V-shaped wheel to the designated position.

[0018] S3: The push rod causes the rack to drive the second bevel gear to rotate through the gear. The second bevel gear drives the first pulley to rotate through the first bevel gear. The first pulley drives the shaft to rotate through the belt and the second pulley. The shaft drives the rubber friction wheel to rotate. The rubber friction wheel drives the high-pressure container tank to rotate along the outer surface of the rubber support wheel.

[0019] S4: By contacting the contact wheel against the weld, the arc-shaped contact rod drives the rocker to rotate. The rocker drives the T-shaped pin to move downward through the second guide groove and the second guide post. The T-shaped pin drives the rubber friction wheel to separate from the surface of the high-pressure container tank through the C-shaped plate. The pressure sensor sends an electrical signal to activate the brake assembly at the end of one of the rubber support wheels, which brakes the rubber support wheel and stops the high-pressure container tank from rotating.

[0020] S5: The laser generator module is used to emit a scanning laser to the weld seam of the high-pressure vessel; the imaging module is used to display the three-dimensional image of the laser scan and convert the three-dimensional image into a corresponding first current signal; the acquisition module is used to acquire the first current signal, integrate and amplify the first current signal to obtain a second current signal, and perform analog-to-digital conversion on the second current signal to obtain a corresponding digital signal; the operator iteratively processes the imaging image according to the digital signal, and then compares the smallest defect according to the database information.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By contacting the weld seam with the contact wheel, the arc-shaped contact rod drives the rocker plate to rotate. The rocker plate drives the T-shaped pin to move downward through the second guide groove and the second guide post. The T-shaped pin drives the rubber friction wheel to separate from the surface of the high-pressure vessel tank through the C-shaped plate. The pressure sensor sends an electrical signal, which activates the brake assembly at the end of one of the rubber support wheels, braking the rubber support wheel and stopping the high-pressure vessel tank from rotating. This device can automatically locate the weld seam, eliminating the need for manual location by operators. It greatly improves the efficiency of batch inspection of high-pressure vessel tanks.

[0023] 2. A laser generating module is used to emit a scanning laser onto the weld seam of the high-pressure vessel; an imaging module is used to display the three-dimensional image of the laser scan and convert the three-dimensional image into a corresponding first current signal, wherein the three-dimensional image is the image generated after the first laser irradiates the weld seam of the high-pressure vessel; an acquisition module is used to acquire the first current signal, integrate and amplify the first current signal to obtain a second current signal, and perform analog-to-digital conversion on the second current signal to obtain a corresponding digital signal. The operator iteratively processes the imaging image based on the digital signal, and then compares the smallest defect with the database information, which greatly improves accuracy and real-time efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a non-destructive testing device for high-pressure vessel welds proposed in this invention.

[0025] Figure 2 This is a schematic diagram of the left-side structure of a non-destructive testing device for high-pressure vessel welds proposed in this invention.

[0026] Figure 3 This is a front view schematic diagram of a non-destructive testing device for weld seams of high-pressure vessels proposed in this invention;

[0027] Figure 4 This is a schematic diagram of a support base for a non-destructive testing device for high-pressure vessel welds proposed in this invention.

[0028] Figure 5 This is a schematic diagram of a rubber support wheel based on a non-destructive testing device for high-pressure vessel welds proposed in this invention;

[0029] Figure 6 This is a schematic diagram of a rubber friction wheel based on a non-destructive testing device for high-pressure vessel welds proposed in this invention;

[0030] Figure 7 This is a schematic diagram of an arc-shaped contact rod based on a non-destructive testing device for high-pressure vessel welds proposed in this invention.

[0031] Figure 8 This is a schematic diagram of an arc slider based on a non-destructive testing device for weld seams of high-pressure vessels proposed in this invention.

[0032] In the diagram: 1. Base; 2. Lifting frame; 3. Imaging module; 4. Motion support; 5. Square tube telescopic tube; 6. Laser generating module; 7. High-pressure container; 701. Weld seam; 8. Support base; 9. Arc-shaped contact rod; 901. Contact wheel; 10. Push rod; 11. Hydraulic telescopic rod; 12. Rubber support wheel; 13. V-shaped wheel; 14. Fixed rod; 15. Drive rod; 16. Mounting frame; 17. First bevel gear; 18. Rack; 19. Gear; 2 0. Second bevel gear; 21. First pulley; 22. Second pulley; 23. Belt; 24. Rubber friction wheel; 25. C-shaped plate; 2501. Horizontal groove; 26. T-shaped pin; 27. Spring; 28. Arc slider; 2801. Arc groove; 29. ​​First support; 30. Rocker; 31. First guide groove; 32. Second guide groove; 33. Second guide post; 34. First guide post; 35. Second support; 36. Pressure sensor; 37. Brake assembly. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] Reference Figures 1-8A non-destructive testing device for weld seams in high-pressure vessels includes a base 1 and a high-pressure vessel tank 7. The high-pressure vessel tank 7 is positioned above the base 1. A weld seam 701 is formed on the outer circumferential surface of the high-pressure vessel tank 7. Multiple support seats 8 are fixedly installed at equal intervals on the upper surface of the base 1. Two rubber support wheels 12 are symmetrically and rotatably mounted on the inner wall of each support seat 8 near its top. The high-pressure vessel tank 7 is positioned above the two rubber support wheels 12 and abuts against their outer surfaces. Two arc-shaped grooves 2801 are symmetrically formed on the outer surfaces of the middle support seat 8 on opposite sides. The inner wall of the high-pressure vessel 7 is slidably fitted with arc-shaped sliders 28. A rotating shaft is rotatably mounted between two arc-shaped sliders 28. A rubber friction wheel 24 is fixedly mounted on the outer surface of the rotating shaft. The rubber friction wheel 24 abuts against the outer circumference of the high-pressure vessel 7. A T-shaped pin 26 is slidably inserted into the bottom wall of the support base 8. A C-shaped plate 25 is fixedly mounted on the top of the T-shaped pin 26. Horizontal grooves 2501 are opened on the outer surfaces of opposite ends of the C-shaped plate 25. The two ends of the rotating shaft are slidably mounted with the inner walls of the two horizontal grooves 2501 respectively. A second support 35 is fixedly mounted on the bottom wall of the support base 8 near one end. An arc-shaped contact rod 9 is rotatably mounted between the inner walls of the support 35. A contact wheel 901 is rotatably mounted on the inner wall of the top of the arc-shaped contact rod 9, and the contact wheel 901 abuts against the outer surface of the high-pressure vessel tank 7. A first support 29 is fixedly mounted on the bottom wall of the support base 8. A rocker plate 30 is rotatably mounted between the inner walls of the first support 29. A first guide groove 31 is opened at one end of the rocker plate 30 near the arc-shaped contact rod 9. A first guide post 34 is fixedly mounted at the bottom end of the arc-shaped contact rod 9. The first guide post 34 is slidably mounted on the inner wall of the first guide groove 31. A second guide groove 3 is opened at the other end of the rocker plate 30. 2. A second guide post 33 is fixedly installed on the outer surface of the T-shaped pin 26 near the top. The second guide post 33 is slidably installed on the inner wall of the second guide groove 32. A spring 27 is sleeved on the outer surface of the T-shaped pin 26 near the bottom. The bottom end of the spring 27 is fixedly connected to the bottom wall of the support seat 8. The top end of the spring 27 is fixedly connected to the outer surface of the T-shaped pin 26 near the top. A pressure sensor 36 is fixedly installed on the bottom end of the arc slider 28. A brake assembly 37 is provided at one end of the rubber support wheel 12 near the rubber friction wheel 24. The pressure sensor 36 is electrically connected to the brake assembly 37.

[0035] By contacting the weld 701 with the contact wheel 901, the arc-shaped contact rod 9 drives the rocker 30 to rotate. The rocker 30 drives the T-shaped pin 26 to move downward through the second guide groove 32 and the second guide post 33. The T-shaped pin 26 drives the rubber friction wheel 24 to separate from the surface of the high-pressure container tank 7 through the C-shaped plate 25. The pressure sensor 36 sends an electrical signal, which causes the brake assembly 37 at the end of one of the rubber support wheels 12 to operate, braking the rubber support wheel 12 and stopping the high-pressure container tank 7 from rotating. This device can automatically locate the position of the weld 701 without the need for operators to manually locate the position of the weld 701, which greatly improves the efficiency of batch inspection of high-pressure container tanks 7.

[0036] In this embodiment, a second pulley 22 is fixedly installed on one end of a rotating shaft through the outer surface of one of the arc-shaped sliders 28. A first bevel gear 17 is rotatably installed on the upper surface of one end of the support base 8. A first pulley 21 is fixedly installed at the rotation center of one end of the first bevel gear 17. A belt 23 is sleeved on the outer surfaces of the first pulley 21 and the second pulley 22. A second bevel gear 20 is also rotatably installed on the upper surface of one end of the support base 8. The first bevel gear 17 and the second bevel gear 20 mesh with each other. The arc-shaped sliding groove 2801 and the first pulley 21 are located at the same center.

[0037] As push rod 10 continues to move, rack 18 drives second bevel gear 20 to rotate via gear 19. Second bevel gear 20 drives first pulley 21 to rotate via first bevel gear 17. First pulley 21 drives shaft to rotate via belt 23 and second pulley 22. Shaft drives rubber friction wheel 24 to rotate. Rubber friction wheel 24 drives high pressure vessel tank 7 to rotate along the outer surface of rubber support wheel 12. This device facilitates adjustment of the position of weld 701 of high pressure vessel tank 7.

[0038] In this embodiment, two push rods 10 are symmetrically slidably mounted on the upper surface of multiple support seats 8. A rack 18 is fixedly mounted on the upper surface of the push rod 10 near the first bevel gear 17. A gear 19 is fixedly mounted at the rotation center of one end of the second bevel gear 20. The gear 19 meshes with the rack 18. A hydraulic telescopic rod 11 is fixedly mounted on the end face of one end of one of the support seats 8. The telescopic end of the hydraulic telescopic rod 11 is fixedly connected to one end of the two push rods 10. A mounting frame 16 is rotatably mounted on the outer surface of one side of multiple support seats 8. V-shaped wheels 13 are rotatably mounted on the inner walls of the mounting frame 16 at opposite ends. Multiple fixed rods 14 are fixedly mounted at equal intervals between the two push rods 10. A drive rod 15 is rotatably mounted on the upper surface of the multiple fixed rods 14. The top end of the drive rod 15 is rotatably mounted on the lower surface of the mounting frame 16. The outer surface of the V-shaped wheel 13 abuts against the outer surface of the high-pressure container tank 7.

[0039] The operator uses an external conveying device to transport the high-pressure container tank 7 to the V-shaped wheel 13 on the support base 8. The movement of the conveying device then moves the high-pressure container tank 7 along the surface of the V-shaped wheel 13 to the designated position. The extension movement of the extension end of the hydraulic telescopic rod 11 drives the two push rods 10 to move away from the moving bracket 4. The push rods 10 drive the mounting bracket 16 to rotate downward through the drive rod 15. The mounting bracket 16 drives the V-shaped wheel 13 to leave the outer surface of the high-pressure container tank 7. At this time, the high-pressure container tank 7 falls on the rubber support wheel 12.

[0040] In this embodiment, a motion support 4 is provided on the upper surface of one end of the base 1. An X-axis moving component, a Y-axis moving component, and a Z-axis moving component are provided inside the motion support 4. A square tube telescopic tube 5 is provided inside the motion support 4. A laser generating module 6 is fixedly installed at the telescopic end of the square tube telescopic tube 5. The laser generating module 6 is located inside the high-pressure container tank 7. A lifting frame 2 is provided on the upper surface of the base 1. A telescopic component is provided inside the lifting frame 2. An imaging module 3 is provided at the end of the telescopic component. An acquisition module is provided inside the imaging module 3.

[0041] The laser generating module 6 is used to emit a scanning laser to the weld 701 of the high-pressure vessel tank 7; the imaging module 3 is used to display the three-dimensional image of the laser scan and convert the three-dimensional image into a corresponding first current signal, wherein the three-dimensional image is the image generated after the first laser irradiates the weld 701 of the high-pressure vessel tank 7; the acquisition module is used to acquire the first current signal, integrate and amplify the first current signal to obtain a second current signal, and perform analog-to-digital conversion on the second current signal to obtain a corresponding digital signal. The operator iteratively processes the imaging image according to the digital signal, and then compares the smallest defect according to the database information, which greatly improves the accuracy and real-time efficiency.

[0042] In this embodiment, the rubber friction wheel 24 can drive the high-pressure container tank 7 to rotate one revolution. When the rubber friction wheel 24 encounters the weld seam 701, the high-pressure container tank 7 can directly rotate past it due to the inertia of the high-pressure container tank 7 and the excess height of the weld seam 701 being 2-3 mm.

[0043] A method for using a non-destructive testing device for weld seams in high-pressure vessels includes the following steps:

[0044] S1: The X-axis moving component, Y-axis moving component and Z-axis moving component on the motion support 4 drive the square tube telescopic tube 5 to the position of the central axis of the high pressure container tank 7. The square tube telescopic tube 5 drives the laser generating module 6 to the position of the central axis of the high pressure container tank 7. The up and down movement of the lifting frame 2 and the telescopic component inside the lifting frame 2 drive the imaging module 3 to a position close to the laser generating module 6 and aligned with it.

[0045] S2: The high-pressure container tank 7 is transported to the V-shaped wheel 13 on the support base 8 by an external conveying device, and then the high-pressure container tank 7 is moved to the designated position along the surface of the V-shaped wheel 13 by the movement of the conveying device.

[0046] S3: The push rod 10 causes the rack 18 to drive the second bevel gear 20 to rotate through the gear 19. The second bevel gear 20 drives the first pulley 21 to rotate through the first bevel gear 17. The first pulley 21 drives the rotating shaft to rotate through the belt 23 and the second pulley 22. The rotating shaft drives the rubber friction wheel 24 to rotate. The rubber friction wheel 24 drives the high pressure container tank 7 to rotate along the outer surface of the rubber support wheel 12.

[0047] S4: The contact wheel 901 abuts against the weld 701, causing the arc-shaped contact rod 9 to drive the rocker 30 to rotate. The rocker 30 drives the T-shaped pin 26 to move downward through the second guide groove 32 and the second guide post 33. The T-shaped pin 26 drives the rubber friction wheel 24 to separate from the surface of the high-pressure container tank 7 through the C-shaped plate 25. The pressure sensor 36 sends an electrical signal, causing the brake assembly 37 at the end of one of the rubber support wheels 12 to operate, braking the rubber support wheel 12 and stopping the high-pressure container tank 7 from rotating.

[0048] S5: The laser generating module 6 is used to emit a scanning laser to the weld seam 701 of the high-pressure vessel tank 7; the imaging module 3 is used to display the three-dimensional image of the laser scan and convert the three-dimensional image into a corresponding first current signal; the acquisition module is used to acquire the first current signal, integrate and amplify the first current signal to obtain a second current signal, and perform analog-to-digital conversion on the second current signal to obtain a corresponding digital signal; the operator iteratively processes the imaging image according to the digital signal, and then compares the smallest defect according to the database information.

[0049] It should be noted that before the inspection, the operator, according to the model of the high-pressure container tank 7 to be inspected, uses the X-axis moving component, Y-axis moving component and Z-axis moving component on the moving support 4 to move the square tube telescopic tube 5 to the position of the central axis of the high-pressure container tank 7. The square tube telescopic tube 5 moves the laser generating module 6 to the position of the central axis of the high-pressure container tank 7. The up and down movement of the lifting frame 2 and the telescopic component inside the lifting frame 2 move the imaging module 3 to a position close to the laser generating module 6, and align it with the laser generating module 6, which facilitates the subsequent inspection of the weld 701.

[0050] In use, the operator uses an external conveying device to transport the high-pressure container tank 7 to the V-shaped wheel 13 on the support base 8, and then the movement of the conveying device drives the high-pressure container tank 7 to move along the surface of the V-shaped wheel 13 to the designated position.

[0051] The extension movement of the hydraulic telescopic rod 11 drives the two push rods 10 to move away from the moving bracket 4. The push rods 10 drive the mounting bracket 16 to rotate downward through the drive rod 15. The mounting bracket 16 drives the V-shaped wheel 13 to leave the outer surface of the high pressure container tank 7. At this time, the high pressure container tank 7 falls on the rubber support wheel 12. The rubber friction wheel 24 abuts against the outer surface of the high pressure container tank 7 through the force of the spring 27, which facilitates the subsequent rotation of the high pressure container tank 7.

[0052] As push rod 10 continues to move, rack 18 drives second bevel gear 20 to rotate via gear 19. Second bevel gear 20 drives first pulley 21 to rotate via first bevel gear 17. First pulley 21 drives shaft to rotate via belt 23 and second pulley 22. Shaft drives rubber friction wheel 24 to rotate. Rubber friction wheel 24 drives high pressure vessel tank 7 to rotate along the outer surface of rubber support wheel 12. This device facilitates adjustment of the position of weld 701 of high pressure vessel tank 7.

[0053] Since the diameter of the high-pressure vessel tank 7 is fixed, when the high-pressure vessel tank 7 rotates, the contact wheel 901 rotates just along the surface of the high-pressure vessel tank 7. Because the weld seam 701 after welding is between 2-3 mm, when the weld seam 701 moves to the position of the contact wheel 901, it will push the contact wheel 901 away by a certain distance. The contact wheel 901 drives the arc-shaped contact rod 9 to rotate away from the high-pressure vessel tank 7. The arc-shaped contact rod 9, through the cooperation of the first guide groove 31 and the first guide post 34, drives one end of the rocker plate 30 to tilt upwards, causing the end of the rocker plate 30 near the T-shaped pin 26 to move downwards. The rocker plate 30, through the second guide groove 32 and the second guide post 33, drives the T-shaped pin 26 to move downwards. The T-shaped pin 26 drives the C-shaped plate 25 to move downwards, and the C-shaped plate 25, through the transverse groove... 2501 and the rotating shaft drive the rubber friction wheel 24 to move downwards. The rubber friction wheel 24 moves downwards along the arc groove 2801 via the arc slider 28. At this time, the rubber friction wheel 24 separates from the surface of the high pressure vessel tank 7. Simultaneously, the downward movement of the arc slider 28 causes the pressure sensor 36 to be squeezed. The pressure sensor 36 sends an electrical signal, causing the brake assembly 37 at the end of one of the rubber support wheels 12 to operate, braking the rubber support wheel 12 and stopping its rotation, thus stopping the high pressure vessel tank 7 from rotating. At this time, the weld 701 aligns with the imaging module 3 and the laser generation module 6. This device can automatically locate the position of the weld 701 without the need for operators to manually locate the position of the weld 701, greatly improving the efficiency of inspection when batch inspecting the high pressure vessel tank 7.

[0054] During inspection, the laser generating module 6 emits a scanning laser to the weld 701 of the high-pressure vessel tank 7; the imaging module 3 displays the three-dimensional image of the laser scan and converts the three-dimensional image into a corresponding first current signal, wherein the three-dimensional image is the image generated after the laser irradiates the weld 701 of the high-pressure vessel tank 7; the acquisition module acquires the first current signal, integrates and amplifies the first current signal to obtain a second current signal, and performs analog-to-digital conversion on the second current signal to obtain a corresponding digital signal. The operator iteratively processes the imaging image based on the digital signal, and then compares the smallest defect with the database information, which greatly improves accuracy and real-time efficiency.

[0055] In this solution, the electrical components are controlled by their associated peripheral controllers. The control circuit can be easily programmed by those skilled in the art and is common knowledge in the field. It is used without modification. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A non-destructive testing device for weld seams of high-pressure vessels, comprising a base (1) and a high-pressure vessel tank (7), wherein the high-pressure vessel tank (7) is disposed above the base (1), and a weld seam (701) is provided on the outer circumferential surface of the high-pressure vessel tank (7), characterized in that, Multiple support seats (8) are fixedly installed at equal intervals on the upper surface of the base (1). Two rubber support wheels (12) are symmetrically rotated on the inner wall of each support seat (8) near the top. The high-pressure container (7) is positioned above the two rubber support wheels (12) and abuts against their outer surfaces. Two arc-shaped sliding grooves (2801) are symmetrically opened on the outer surfaces of the middle support seat (8) on opposite sides. Arc-shaped sliders (28) are slidably installed on the inner walls of the two arc-shaped sliding grooves (2801). A rotating shaft is rotatably installed between the two arc-shaped sliders (28). A rubber friction wheel (24) is fixedly installed on the outer surface of the rotating shaft. The rubber friction wheel (24) and the high-pressure container (7) are connected. The outer circumferential surface of the support (8) abuts against each other. A T-shaped pin (26) is slidably inserted into the bottom wall of the support (8). A C-shaped plate (25) is fixedly installed at the top of the T-shaped pin (26). A transverse groove (2501) is opened on the outer surface of the C-shaped plate (25) at both ends. The two ends of the rotating shaft are slidably installed with the inner walls of the two transverse grooves (2501). A second support (35) is fixedly installed on the bottom wall of the support (8) at one end. An arc-shaped contact rod (9) is rotatably installed between the inner walls of the second support (35). A contact wheel (901) is rotatably installed on the inner wall at the top of the arc-shaped contact rod (9). The contact wheel (901) abuts against the outer surface of the high-pressure container (7). A first support (29) is fixedly installed on the bottom wall of the support base (8). A rocker (30) is rotatably installed between the inner walls of the first support (29). A first guide groove (31) is provided at one end of the rocker (30) near the arc-shaped contact rod (9). A first guide post (34) is fixedly installed at the bottom end of the arc-shaped contact rod (9). The first guide post (34) is slidably installed with the inner wall of the first guide groove (31). A second guide groove (32) is provided at the other end of the rocker (30). A second guide post (33) is fixedly installed on the outer surface of the T-shaped pin (26) near the top. The second guide post (33) is slidably installed with the inner wall of the second guide groove (32). A spring (27) is sleeved on the outer surface of the T-shaped pin (26) near the bottom. The bottom end of the spring (27) is fixedly connected to the bottom wall of the support base (8). The top end of the spring (27) is fixedly connected to the outer surface of the T-shaped pin (26) near the top. One end of the rotating shaft passes through the outer surface of one of the arc sliders (28) and is fixedly installed with a second pulley (22). A first bevel gear (17) is rotatably installed on the upper surface of one end of the support base (8). A first pulley (21) is fixedly installed at the rotation center of one end of the first bevel gear (17). A belt (23) is sleeved on the outer surface of the first pulley (21) and the second pulley (22). A second bevel gear (20) is also rotatably installed on the upper surface of one end of the support base (8). The first bevel gear (17) and the second bevel gear (20) mesh. The arc groove (2801) and the first pulley (21) are located at the same center. A pressure sensor (36) is fixedly installed at the bottom end of the arc slider (28). A brake assembly (37) is provided at one end of the rubber support wheel (12) near the rubber friction wheel (24). The pressure sensor (36) and the brake assembly (37) are electrically connected.

2. The non-destructive testing device for high-pressure vessel welds according to claim 1, characterized in that, Two push rods (10) are symmetrically slidably mounted on the upper surface of multiple support seats (8). A rack (18) is fixedly mounted on the upper surface of the push rod (10) near the first bevel gear (17). A gear (19) is fixedly mounted at the rotation center of one end of the second bevel gear (20). The gear (19) meshes with the rack (18). A hydraulic telescopic rod (11) is fixedly mounted on the end face of one end of one of the support seats (8). The telescopic end of the hydraulic telescopic rod (11) is fixedly connected to one end of the two push rods (10).

3. The non-destructive testing device for high-pressure vessel welds according to claim 2, characterized in that, A mounting bracket (16) is rotatably mounted on the outer surface of one side of each of the multiple support bases (8). V-shaped wheels (13) are rotatably mounted on the inner walls of the mounting brackets (16) at opposite ends. Multiple fixing rods (14) are fixedly mounted at equal intervals between the two push rods (10). A drive rod (15) is rotatably mounted on the upper surface of each of the multiple fixing rods (14). The top of the drive rod (15) is rotatably mounted on the lower surface of the mounting bracket (16). The outer surface of the V-shaped wheel (13) abuts against the outer surface of the high-pressure container tank (7).

4. The non-destructive testing device for high-pressure vessel welds according to claim 1, characterized in that, The upper surface of one end of the base (1) is provided with a motion support (4), the inside of the motion support (4) is provided with an X-axis moving component, the inside of the motion support (4) is provided with a Y-axis moving component, and the inside of the motion support (4) is provided with a Z-axis moving component.

5. The non-destructive testing device for high-pressure vessel welds according to claim 4, characterized in that, The motion support (4) is provided with a square tube telescopic tube (5) inside, and a laser generating module (6) is fixedly installed at the telescopic end of the square tube telescopic tube (5). The laser generating module (6) is located inside the high-pressure container tank (7).

6. The non-destructive testing device for high-pressure vessel welds according to claim 5, characterized in that, The upper surface of the base (1) is provided with a lifting frame (2), the inside of the lifting frame (2) is provided with a telescopic component, the end of the telescopic component is provided with an imaging module (3), and the inside of the imaging module (3) is provided with a data acquisition module.

7. A method for using a non-destructive testing device for weld seams of high-pressure vessels, characterized in that, The non-destructive testing device for high-pressure vessel welds according to any one of claims 1-6 includes the following steps: S1: The X-axis moving component, Y-axis moving component and Z-axis moving component on the motion support (4) drive the square tube telescopic tube (5) to the position of the central axis of the high pressure container tank (7). The square tube telescopic tube (5) drives the laser generating module (6) to the position of the central axis of the high pressure container tank (7). The up and down movement of the lifting frame (2) and the telescopic component inside the lifting frame (2) drive the imaging module (3) to the position close to the laser generating module (6) and align it with the laser generating module (6). S2: The high pressure container (7) is transported to the V-shaped wheel (13) on the support base (8) by an external conveying device, and then the high pressure container (7) is moved to the designated position along the surface of the V-shaped wheel (13) by the movement of the conveying device. S3: The push rod (10) causes the rack (18) to drive the second bevel gear (20) to rotate through the gear (19). The second bevel gear (20) drives the first pulley (21) to rotate through the first bevel gear (17). The first pulley (21) drives the shaft to rotate through the belt (23) and the second pulley (22). The shaft drives the rubber friction wheel (24) to rotate. The rubber friction wheel (24) drives the high pressure container (7) to rotate along the outer surface of the rubber support wheel (12). S4: By contacting the contact wheel (901) against the weld (701), the arc-shaped contact rod (9) drives the rocker (30) to rotate. The rocker (30) drives the T-shaped pin (26) to move downward through the second guide groove (32) and the second guide post (33). The T-shaped pin (26) drives the rubber friction wheel (24) to separate from the surface of the high-pressure container tank (7) through the C-shaped plate (25). The pressure sensor (36) sends an electrical signal, causing the brake assembly (37) at the end of one of the rubber support wheels (12) to operate, braking the rubber support wheel (12) and stopping the high-pressure container tank (7) from rotating. S5: The laser generating module (6) is used to emit a scanning laser to the weld (701) of the high-pressure vessel (7); the imaging module (3) is used to display the three-dimensional image of the laser scan and convert the three-dimensional image into the corresponding first current signal; the acquisition module is used to acquire the first current signal, and to integrate and amplify the first current signal to obtain the second current signal, and to perform analog-to-digital conversion on the second current signal to obtain the corresponding digital signal; the operator iteratively processes the imaging image according to the digital signal, and then compares the smallest defect according to the database information.

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