A non-destructive testing device for pressure vessel inspection

Abstract

This application relates to the field of non-destructive testing equipment technology, and discloses a non-destructive testing device for pressure vessel inspection, including a mounting frame. A telescopic rod is fixedly mounted on the upper surface of the mounting frame, and a crossbar is fixedly mounted on the output end of the telescopic rod. A motor is fixedly mounted on the right end of the crossbar, and a worm gear is fixedly connected to the output shaft of the motor. This non-destructive testing device for pressure vessel inspection, by setting up components such as a telescopic rod, a worm gear, a worm wheel, and a threaded rod, allows the crossbar and ultrasonic testing probe to rise and fall when the telescopic rod is activated. Activating the motor drives the worm gear to rotate. Through the connection between the worm gear and the worm wheel, the threaded rod drives a slider to slide on the inner wall of a groove, thereby allowing the ultrasonic testing probe to move laterally. This allows the device to easily adjust the height and position of the ultrasonic testing probe, enabling the inspection of test pieces of different sizes while ensuring inspection accuracy and expanding the inspection range.

Description

Technical Field

[0001] This application relates to the field of nondestructive testing equipment technology, specifically a nondestructive testing device for pressure vessel inspection. Background Technology

[0002] Non-destructive testing equipment for pressure vessel inspection is a key technical tool to ensure the safe operation of pressure vessels. Its core lies in identifying internal defects in materials through non-destructive means. As a closed device that carries gas or liquid and withstands pressure, pressure vessels are widely used in petrochemical, energy, nuclear and other fields. During their manufacturing and use, defects such as corrosion, cracks and deformation may cause safety accidents. Therefore, quality control is required through non-destructive testing technology.

[0003] However, in the existing technology, it has been found that when inspecting pressure vessels, the inspection probe usually needs to be fixed or held by the operator. Fixed probes cannot adjust the distance between the probe and the pressure vessel according to the size of the pressure vessel, resulting in a decrease in inspection accuracy. Furthermore, the position of the probe cannot be changed, which means that only single-point inspection can be achieved, resulting in a narrow inspection range. On the other hand, if the operator holds the probe, human error is likely to occur, leading to inaccurate inspection data. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a non-destructive testing device for pressure vessel inspection. This device features adjustable ultrasonic probe height and position, enabling inspection of components of different sizes while maintaining accuracy and expanding the inspection range. It solves the problems of existing fixed probes, which cannot adjust the distance between the probe and the pressure vessel according to its size, leading to decreased inspection accuracy; limited single-point inspection with a narrow inspection range; and operator-held probes, which are prone to human error and inaccurate data.

[0005] To achieve the above objectives, this application provides the following technical solution: a non-destructive testing device for pressure vessel inspection, comprising a mounting frame, a telescopic rod fixedly mounted on the upper surface of the mounting frame, a crossbar fixedly mounted on the output end of the telescopic rod, a motor fixedly mounted on the right end of the crossbar, a worm gear fixedly connected to the output shaft of the motor, a worm wheel meshing with the outer surface of the worm gear, a threaded rod fixedly connected to the inner wall of the worm wheel, the outer surface of the threaded rod rotatably connected to the inner wall of the crossbar, a slider threadedly connected to the outer surface of the threaded rod, an ultrasonic testing probe fixedly mounted on the bottom surface of the slider, a groove formed on the bottom surface of the crossbar, the inner wall of the groove slidingly connected to the outer surface of the slider, and two limiting rods fixedly connected to the upper surface of the crossbar, the outer surface of each limiting rod slidingly connected to the inner wall of the mounting frame.

[0006] In order to facilitate the adjustment of the height and lateral position of the ultrasonic testing probe, thereby adapting to test pieces of different sizes and improving testing accuracy and range, the above scheme is implemented by setting up a mounting frame and installing a telescopic rod on the upper surface of the mounting frame. A crossbar is installed at the output end of the telescopic rod, allowing the crossbar to be raised and lowered. A limiting rod is fixed to the crossbar and connected to the mounting frame to limit the raising and lowering of the crossbar, making the distance between the ultrasonic testing probe and the test piece adjustable. This facilitates the testing of test pieces of different sizes and improves testing accuracy. Starting motor one causes the worm gear to rotate. Through the connection between the worm gear and the worm wheel, threaded rod one rotates. Through the connection between threaded rod one and slider one, slider one slides on the inner wall of the slide groove one, thereby driving the ultrasonic testing probe to adjust laterally, so as to test different positions of the test piece and thus improve the testing range.

[0007] Furthermore, a limiting member is fixedly connected to the right side of the crossbar, and the inner wall of the limiting member is rotatably connected to the outer surface of the worm gear.

[0008] The above scheme involves installing the limiting component on the right side of the crossbar as a fixed connection, thus achieving the installation of the limiting component. The limiting component is then connected to the worm gear as a rotatable connection, enabling the limiting component to support and limit the worm gear.

[0009] Furthermore, a base plate is fixedly connected to the bottom surface of the mounting bracket, and the bottom surface of the base plate is fixedly equipped with equally spaced support legs.

[0010] The above solution involves installing the base plate on the bottom surface of the mounting frame for a fixed connection. The base plate supports the mounting frame, and the legs are placed on the bottom surface of the base plate to facilitate the placement of the entire device in the desired location.

[0011] Furthermore, a second motor is fixedly installed on the upper surface of the base plate, and a first pulley is fixedly connected to the output shaft of the second motor. A belt assembly is driven to the outer surface of the first pulley, and a second pulley is driven to the inner wall of the belt assembly.

[0012] With the above scheme, motor 2 is installed on the upper surface of the base plate, and pulley 1 is fixed to motor 2, so that motor 2 can drive pulley 1 to rotate. The belt assembly is placed on the outside of pulley 1 and wound around pulley 2 on the other side of the belt assembly. When motor 2 drives pulley 1 to rotate, pulley 2 can rotate together under the action of the belt assembly.

[0013] Furthermore, a pressure vessel body is provided above the base plate, and clamping components are provided on the left and right sides of the pressure vessel body. A support frame is rotatably connected to the outer surface of each clamping component.

[0014] The above scheme provides a pressure vessel body above the base plate, and clamping components are provided on the left and right sides of the pressure vessel body. The connecting pins of the clamping components can be connected to the connecting flanges at both ends of the pressure vessel body to clamp the pressure vessel body. The support frame is installed on the surface of the corresponding clamping component and is set as a rotatable connection to support and limit the clamping component.

[0015] Furthermore, the bottom surface of one of the support frames is fixedly connected to the upper surface of the base plate, the outer surface of one of the clamping members is fixedly connected to the inner wall of the pulley two, and two sliding grooves two are opened on the upper surface of the base plate. Each sliding groove two has a slider two slidably connected to its inner wall, and the upper surface of each slider two is fixedly connected to the bottom surface of the corresponding support frame.

[0016] The above scheme fixes the bottom surface of the left support frame to the base plate, thereby limiting the position of the left support frame and the clamping component. The surface of the left clamping component is fixed to the second pulley, so that when the second motor drives the first pulley to rotate, the second pulley can drive the left clamping component to rotate, thus allowing the pressure vessel body to rotate. This facilitates the ultrasonic testing probe to detect various positions on the outer surface of the pressure vessel body. A second sliding groove is opened on the upper surface of the base plate, and a second slider is set on the inner wall of the second sliding groove to limit the position of the second slider. The bottom surface of the right support frame is fixed to the second slider, so that when the second slider moves, it drives the right support frame to move.

[0017] Furthermore, the inner wall of the base plate is rotatably connected to a threaded rod II, and the outer surface of the threaded rod II is threadedly connected to the inner wall of the corresponding slider II.

[0018] The above scheme involves connecting the threaded rod 2 to the base plate in a rotating manner to limit the movement of the threaded rod 2. The threaded rod 2 is then connected to one of the sliders 2, so that when the operator rotates the threaded rod 2, the slider 2 can move the support frame on the right side.

[0019] Furthermore, a guide rod is fixedly connected to the inner wall of the base plate, and the outer surface of the guide rod is slidably connected to the inner wall of the corresponding slider.

[0020] The above solution involves fixing a guide rod to the inner wall of the base plate and connecting the guide rod to another slider, thereby limiting the movement of the slider and enabling the support frame on the right to move stably.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This non-destructive testing device for pressure vessel inspection comprises components such as a telescopic rod, a worm gear, a worm wheel, and a threaded rod. Activating the telescopic rod allows the horizontal bar and ultrasonic testing probe to rise and fall. Starting a motor drives the worm gear to rotate. Through the connection between the worm gear and the worm wheel, the threaded rod drives a slider to slide on the inner wall of a groove, thereby allowing the ultrasonic testing probe to move laterally. This allows for easy adjustment of the ultrasonic testing probe's height and position, enabling the inspection of different sized components while maintaining accuracy and expanding the inspection range. Starting a second motor rotates a pulley, which, through the connection of pulley one, a belt assembly, and pulley two, drives the left-side clamping component to rotate. The connection between the two clamping components and the pressure vessel body allows the pressure vessel body to rotate, enabling the device to inspect various locations on the outer surface of the pressure vessel body without requiring operators to repeatedly adjust the pressure vessel body's position. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is the overall main view structure diagram of this application;

[0025] Figure 3 This is a structural diagram showing the connection relationship between the telescopic pole and the crossbar in this application;

[0026] Figure 4 This is a structural diagram showing the connection relationship between the worm and the worm wheel in this application;

[0027] Figure 5 This is a structural diagram showing the connection relationship between the threaded rod 2 and the slider 2 in this application.

[0028] In the picture:

[0029] 1. Mounting bracket; 2. Telescopic rod; 3. Crossbar; 4. Motor 1; 5. Worm gear; 6. Worm wheel; 7. Threaded rod 1; 8. Slider 1; 9. Ultrasonic testing probe; 10. Slide groove 1; 11. Limiting rod; 12. Limiting component; 13. Base plate; 14. Support leg; 15. Motor 2; 16. Pulley 1; 17. Belt assembly; 18. Pulley 2; 19. Pressure vessel body; 20. Clamping component; 21. Support frame; 22. Slide groove 2; 23. Slider 2; 24. Guide rod; 25. Threaded rod 2. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 2 , Figure 3 and Figure 4 This embodiment of a non-destructive testing device for pressure vessel inspection includes a mounting frame 1. A telescopic rod 2 is fixedly mounted on the upper surface of the mounting frame 1. A crossbar 3 is fixedly mounted on the output end of the telescopic rod 2. A motor 4 is fixedly mounted on the right end of the crossbar 3. A worm gear 5 is fixedly connected to the output shaft of the motor 4. A worm wheel 6 meshes with the outer surface of the worm gear 5. A threaded rod 7 is fixedly connected to the inner wall of the worm wheel 6. The outer surface of the threaded rod 7 is rotatably connected to the inner wall of the crossbar 3. A slider 8 is threadedly connected to the outer surface of the threaded rod 7. An ultrasonic testing probe 9 is fixedly mounted on the bottom surface of the slider 8. A groove 10 is formed on the bottom surface of the crossbar 3. The inner wall of the groove 10 is slidably connected to the outer surface of the slider 8. Two limiting rods 11 are fixedly connected to the upper surface of the crossbar 3. The outer surface of each limiting rod 11 is slidably connected to the inner wall of the mounting frame 1.

[0032] Please see Figure 4 A limiting member 12 is fixedly connected to the right side of the crossbar 3. The inner wall of the limiting member 12 is rotatably connected to the outer surface of the worm 5. The limiting member 12 is installed on the right side of the crossbar 3 as a fixed connection, thereby realizing the installation of the limiting member 12. The limiting member 12 is connected to the worm 5 as a rotatable connection, so that the limiting member 12 can support and limit the worm 5.

[0033] Please see Figure 1 , Figure 2 and Figure 3 The bottom surface of the mounting frame 1 is fixedly connected to a base plate 13, and the bottom surface of the base plate 13 is fixedly installed with equally spaced support legs 14. The base plate 13 is installed on the bottom surface of the mounting frame 1 and is set as a fixed connection. The base plate 13 supports the mounting frame 1. The support legs 14 are set on the bottom surface of the base plate 13. The support legs 14 facilitate the placement of the entire device in the required position.

[0034] Please see Figure 1 , Figure 3 and Figure 5A second motor 15 is fixedly installed on the upper surface of the base plate 13. The output shaft of the second motor 15 is fixedly connected to a pulley 16. A belt assembly 17 is driven to the outer surface of the pulley 16, and a second pulley 18 is driven to the inner wall of the belt assembly 17. The second motor 15 is installed on the upper surface of the base plate 13, and the pulley 16 is fixed to the second motor 15, so that the second motor 15 can drive the pulley 16 to rotate. The belt assembly 17 is placed on the outside of the pulley 16 and wound around it. The second pulley 18 is wound around the other side of the belt assembly 17. When the second motor 15 drives the pulley 16 to rotate, the second pulley 18 can rotate together under the action of the belt assembly 17.

[0035] Please see Figure 1 , Figure 2 and Figure 5 A pressure vessel body 19 is provided above the base plate 13. Clamping members 20 are provided on the left and right sides of the pressure vessel body 19. A support frame 21 is rotatably connected to the outer surface of each clamping member 20. The clamping members 20 can be connected to the connecting flanges at both ends of the pressure vessel body 19 through the connecting pins of the clamping members 20 to clamp the pressure vessel body 19. The support frame 21 is installed on the surface of the corresponding clamping member 20 and is set as a rotatable connection to support and limit the clamping member 20.

[0036] Please see Figure 1 , Figure 3 and Figure 5 One of the support frames 21 has its bottom surface fixedly connected to the upper surface of the base plate 13, and the outer surface of one of the clamping parts 20 is fixedly connected to the inner wall of the pulley 18. Two grooves 22 are formed on the upper surface of the base plate 13, and a slider 23 is slidably connected to the inner wall of each groove 22. The upper surface of each slider 23 is fixedly connected to the bottom surface of the corresponding support frame 21. This fixes the bottom surface of the left support frame 21 to the base plate 13, thus limiting the position of the left support frame 21 and the clamping part 20. The surface of the left clamping part 20 is then connected to the pulley 18. The motor 15 drives the pulley 16 to rotate, which in turn drives the clamping member 20 on the left side to rotate, thus allowing the pressure vessel body 19 to rotate. This facilitates the ultrasonic testing probe 9 to detect various positions on the outer surface of the pressure vessel body 19. A groove 22 is formed on the upper surface of the base plate 13, and a slider 23 is set on the inner wall of the groove 22 to limit the movement of the slider 23. The bottom surface of the support frame 21 on the right side is fixed to the slider 23, so that when the slider 23 moves, it drives the support frame 21 on the right side to move.

[0037] Please see Figure 5A threaded rod 25 is rotatably connected to the inner wall of the base plate 13. The outer surface of the threaded rod 25 is threadedly connected to the inner wall of the corresponding slider 23. The threaded rod 25 is rotatably connected to the base plate 13 to limit the movement of the threaded rod 25. The threaded rod 25 is connected to one of the sliders 23 so that when the operator rotates the threaded rod 25, the slider 23 can drive the support frame 21 on the right side to move.

[0038] Please see Figure 5 A guide rod 24 is fixedly connected to the inner wall of the base plate 13. The outer surface of the guide rod 24 is slidably connected to the inner wall of the corresponding slider 23. The guide rod 24 is fixed to the inner wall of the base plate 13 and connected to another slider 23 to limit the movement of the slider 23, so that the support frame 21 on the right can move stably.

[0039] This embodiment of a non-destructive testing device for pressure vessel inspection includes components such as a telescopic rod 2, a worm gear 5, a worm wheel 6, and a threaded rod 7. Activating the telescopic rod 2 allows the crossbar 3 and ultrasonic testing probe 9 to rise and fall. Starting the motor 4 drives the worm gear 5 to rotate. Through the connection between the worm gear 5 and the worm wheel 6, the threaded rod 7 drives the slider 8 to slide on the inner wall of the groove 10, thereby allowing the ultrasonic testing probe 9 to move laterally. This allows for easy adjustment of the height and position of the ultrasonic testing probe 9, enabling the inspection of different sized components while maintaining accuracy and expanding the inspection range. Starting the motor 15 causes the pulley 16 to rotate. Through the connection between the pulley 16, the belt assembly 17, and the pulley 18, the pulley 18 drives the left-side clamping member 20 to rotate. The connection between the two clamping members 20 and the pressure vessel body 19 allows the pressure vessel body 19 to rotate, enabling the device to inspect various positions on the outer surface of the pressure vessel body 19 without requiring operators to repeatedly adjust its position.

[0040] It should be noted that both motor 4 and motor 15 are servo motors, which can realize the forward and reverse rotation of worm gear 5 and pulley 16 respectively. The ultrasonic detection probe 9 can detect data such as the wall thickness and internal defects of the pressure vessel body 19. The telescopic rod 2 is an electric push rod, which can realize the rapid lifting and lowering of the crossbar 3.

[0041] The working principle of the above embodiments is as follows:

[0042] When inspecting the pressure vessel body 19, firstly, position the pressure vessel body 19 at a specified height, connect the left end of the pressure vessel body 19 to the left-side clamping member 20, rotate the threaded rod 25 to move the slider 23, thereby causing the right-side support frame 21 to move the clamping member 20. The two clamping members 20 limit the pressure vessel body 19. Then, activate the telescopic rod 2 to raise and lower the crossbar 3 and the ultrasonic testing probe 9, facilitating the adjustment of the distance between the ultrasonic testing probe 9 and the pressure vessel body 19, thus adapting to pressure vessel bodies 19 of different sizes and improving inspection accuracy. Start the motor 4 to drive the worm gear 5 to rotate. Through the connection between the worm gear 5 and the worm wheel 6, the threaded rod 7 drives the slider 8 in the groove. The inner wall of the ultrasonic testing probe 9 slides, allowing it to move laterally. This facilitates adjustment of the lateral position of the ultrasonic testing probe 9, thereby increasing the detection range. After the test is completed, the motor 15 is started, causing the pulley 16 to rotate. Through the connection of the pulley 16, the belt assembly 17, and the pulley 18, the pulley 18 drives the left clamping member 20 to rotate. Through the connection between the two clamping members 20 and the pressure vessel body 19, the pressure vessel body 19 can rotate. This allows the remaining untested surfaces of the pressure vessel body 19 to be rotated to the area below the ultrasonic testing probe 9 for testing, achieving all-around testing of the pressure vessel body 19 without requiring the operator to repeatedly adjust the position of the pressure vessel body 19.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for pressure vessel inspection, comprising a mounting bracket (1), characterized in that: A telescopic rod (2) is fixedly installed on the upper surface of the mounting frame (1). A crossbar (3) is fixedly installed at the output end of the telescopic rod (2). A motor (4) is fixedly installed at the right end of the crossbar (3). A worm gear (5) is fixedly connected to the output shaft of the motor (4). A worm wheel (6) meshes with the outer surface of the worm gear (5). A threaded rod (7) is fixedly connected to the inner wall of the worm wheel (6). The outer surface of the threaded rod (7) is rotatably connected to the inner wall of the crossbar (3). A slider (8) is threadedly connected to the outer surface of the threaded rod (7). An ultrasonic detection probe (9) is fixedly installed on the bottom surface of the slider (8). A groove (10) is opened on the bottom surface of the crossbar (3). The inner wall of the groove (10) is slidably connected to the outer surface of the slider (8). Two limiting rods (11) are fixedly connected to the upper surface of the crossbar (3). The outer surface of each limiting rod (11) is slidably connected to the inner wall of the mounting frame (1).

2. The non-destructive testing device for pressure vessel inspection according to claim 1, characterized in that: A limiting member (12) is fixedly connected to the right side of the crossbar (3), and the inner wall of the limiting member (12) is rotatably connected to the outer surface of the worm (5).

3. The non-destructive testing device for pressure vessel inspection according to claim 1, characterized in that: The bottom surface of the mounting bracket (1) is fixedly connected to a base plate (13), and the bottom surface of the base plate (13) is fixedly installed with equally spaced support legs (14).

4. The non-destructive testing device for pressure vessel inspection according to claim 3, characterized in that: The upper surface of the base plate (13) is fixedly mounted with a second motor (15), the output shaft of the second motor (15) is fixedly connected to a first pulley (16), the outer surface of the first pulley (16) is connected to a belt assembly (17), and the inner wall of the belt assembly (17) is connected to a second pulley (18).

5. The non-destructive testing device for pressure vessel inspection according to claim 3, characterized in that: The pressure vessel body (19) is provided above the base plate (13). Clamping parts (20) are provided on the left and right sides of the pressure vessel body (19). A support frame (21) is rotatably connected to the outer surface of each clamping part (20).

6. The non-destructive testing device for pressure vessel inspection according to claim 5, characterized in that: One of the support frames (21) has its bottom surface fixedly connected to the upper surface of the base plate (13), and the outer surface of one of the clamping members (20) is fixedly connected to the inner wall of the pulley (18). The upper surface of the base plate (13) has two sliding grooves (22), and each sliding groove (22) has a slider (23) slidably connected to its inner wall. The upper surface of each slider (23) is fixedly connected to the bottom surface of the corresponding support frame (21).

7. The non-destructive testing device for pressure vessel inspection according to claim 6, characterized in that: The inner wall of the base plate (13) is rotatably connected to a threaded rod (25), and the outer surface of the threaded rod (25) is threadedly connected to the inner wall of the corresponding slider (23).

8. The non-destructive testing device for pressure vessel inspection according to claim 6, characterized in that: The inner wall of the base plate (13) is fixedly connected to a guide rod (24), and the outer surface of the guide rod (24) is slidably connected to the inner wall of the corresponding slider (23).

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