A phased array detection scanning device for pressure vessel nozzle fillet welds

Abstract

The utility model relates to pressure vessel weld scanning technical field discloses a kind of pressure vessel nozzle fillet weld phased array detection scanning device suitable for, it include: fixed plate, the plate wall of fixed plate is equipped with horizontal plate by bolt, the plate wall of horizontal plate is slidably connected with clamp block, the block wall of clamp block is welded with the vertical sleeve of sleeve vertical plate, the sleeve inner wall of vertical sleeve is connected with vertical plate, and one end of vertical plate is connected with the shell wall inner wall of concave shell by spring, the frame for connecting phased array probe is fixed in the shell wall of concave shell, and the base of phased array probe is at the tank wall of pressure vessel, realize the dynamic adjustment between phased array probe and pressure vessel, improve the stability of detection.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel weld inspection technology, specifically a phased array inspection device for pressure vessel nozzle fillet welds. Background Technology

[0002] Fillet welds are critical connection points in pressure vessels, storage tanks, and other equipment, and their quality directly affects equipment safety. Existing pressure vessel and nozzle fillet weld scanning devices are typically heavily reliant on manual operation to meet the requirements of weld inspection: inspectors must manually move the probe along the weld, resulting in low efficiency, poor stability, and susceptibility to operator experience; poor environmental adaptability: in high-temperature, high-altitude, toxic environments, or complex curved weld surfaces, manual inspection carries high risks and accuracy is difficult to guarantee; insufficient coverage: traditional scanning devices are poorly adaptable to changes in weld angle and curvature, easily leading to missed detections, and existing scanning frames often employ simple structures, making it difficult to automatically adjust the probe posture according to the weld shape. Therefore, we propose a phased array scanning device suitable for pressure vessel nozzle fillet weld inspection, facilitating probe posture adjustment for convenient weld inspection. Utility Model Content

[0003] The purpose of this invention is to provide a phased array scanning device for detecting fillet welds in pressure vessel nozzles, in order to solve the problems mentioned in the background art, such as poor adaptability to changes in weld angle and curvature, easy to cause missed detections, and high labor cost and cumbersome process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a phased array scanning device for detecting fillet welds in pressure vessel nozzles, comprising a fixed plate, a horizontal plate mounted on the wall of the fixed plate by bolts, a clamping block slidably connected to the wall of the horizontal plate, a vertical sleeve for connecting a vertical plate welded to the wall of the clamping block, a vertical plate sleeved to the inner wall of the vertical sleeve, one end of the vertical plate being connected to the inner wall of a concave shell by a spring, and a frame for connecting a phased array probe fixed to the wall of the concave shell.

[0005] By adopting the above technical solution, when inspecting the weld, the operator moves the clamp block, causing it to move along the wall of the horizontal plate. This allows for adjustment of the lateral position of the phased array probe. Since a vertical sleeve is welded to the wall of the clamp block, the operator moves the vertical plate inside the sleeve, adjusting the distance between the vertical plate and the tank wall. This allows the base of the phased array probe to be attached to the tank wall. Once the base of the phased array probe is attached to the tank, the probe is located within a frame connected to a concave shell. The concave shell is connected to the vertical plate via a spring. This allows for dynamic adjustment between the phased array probe and the pressure vessel, improving the stability of the inspection.

[0006] Preferably, the side walls of the fixing plate are slidably connected to wheel frames, and the grooves of the wheel frames are rotatably connected to magnetic suction wheels that adsorb the side walls of the tube.

[0007] By adopting the above technical solution, the wheel frame is used to install the magnetic suction wheel, and the magnetic suction wheel is used to attract the pipe. When performing a circumferential inspection of the weld, the personnel push the vertical plate to make the magnetic suction wheel move around the pipe wall of the pipe, thereby realizing the inspection of the weld.

[0008] Preferably, a slider is welded to the frame wall of the wheel frame, the slider is located in a groove on the side wall of the fixed plate, and a bolt is threaded to the frame wall of the wheel frame, the other end of the bolt being located in the groove.

[0009] By adopting the above technical solution, the slider moves within the groove by moving the wheel frame, and the distance between the wheel frames is adjusted to facilitate the magnetic suction wheel at the concave part of the wheel frame to adsorb pipes of different heights. After the wheel frame is fixed, the personnel tighten the bolts to press the inner wall of the groove, thereby fixing the wheel frame.

[0010] Preferably, an encoder positioning device for recording the probe position is fixed to the wall of the fixed plate.

[0011] By adopting the above technical solution, the encoder positioning device is used to record the probe position in real time, avoiding missed detection of weld seams.

[0012] Preferably, a limiting plate is welded to the inner sidewall of the concave shell, and a vertical groove for limiting the limiting plate is provided on the sidewall of the vertical plate.

[0013] By adopting the above technical solution, after the limiting plate is inserted into the vertical groove, the vertical groove limits the limiting plate. Pulling the vertical plate causes it to move within the vertical sleeve. Tightening the bolts causes them to press against the vertical plate, fixing it in place. This allows the vertical plate to move within the concave shell. The spring applies a set of opposing forces, causing it to be compressed. After the spring is compressed, the bottom of the phased array probe is attached to the tank wall of the pressure vessel, and the phased array probe detects the weld seam.

[0014] Preferably, both ends of the frame are threaded with rotating threaded rods, and one end of the threaded rod is connected to the wall of the clamping plate through a bearing.

[0015] By adopting the above technical solution, after the threaded rod is turned, the threaded rod rotates on the side wall of the frame. The threaded rod pushes the clamping plate to move in the groove of the frame, thereby clamping the phased array probe and fixing the phased array probe.

[0016] Preferably, a phased array probe for detecting the fillet weld between the pressure vessel and the nozzle is clamped and connected to the wall of the clamping plate.

[0017] By adopting the above technical solution, phased array testing is an ultrasonic non-destructive testing technology. Its core principle is to use a probe array composed of multiple independently controlled piezoelectric crystals (array elements) to achieve dynamic control of the ultrasonic beam by precisely controlling the time delay (phase) of each crystal transmitting or receiving ultrasonic pulses, thereby realizing the detection of weld seams.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model includes a bracket mechanism and a bottom support unit installed on the outer wall of a water purifier. When inspecting welds, personnel move the clamp block, causing it to move along the wall of the horizontal plate. This adjusts the lateral position of the phased array probe. Since a vertical sleeve is welded to the wall of the clamp block, personnel move the vertical plate inside the vertical sleeve, adjusting the distance between the vertical plate and the tank wall. This allows the base of the phased array probe to be attached to the tank wall. Once the base of the phased array probe is attached to the tank, the probe is located within a frame. The frame is connected to a concave shell, and the concave shell is connected to the vertical plate via a spring. This allows the base of the phased array probe to be positioned at the tank wall of the pressure vessel, enabling dynamic adjustment between the phased array probe and the pressure vessel and improving the stability of the inspection.

[0019] 2. The wheel frame added in this utility model is used to install the magnetic suction wheel. The magnetic suction wheel is used to attract the connecting pipe. When performing a circumferential inspection of the weld, the operator pushes the vertical plate, causing the magnetic suction wheel to move circumferentially along the pipe wall of the connecting pipe to achieve weld inspection. After the limiting plate is inserted into the vertical groove, the vertical groove limits the limiting plate. Pulling the vertical plate causes it to move within the vertical sleeve. Tightening the bolts compresses the vertical plate, fixing it in place. Thus, the vertical plate moves within the concave shell. A spring applies a set of opposing forces, causing the spring to be compressed. After the spring is compressed, the bottom of the phased array probe... The phased array probe is attached to the tank wall of the pressure vessel to inspect the weld. After the threaded rod is turned, the threaded rod rotates on the side wall of the frame. The threaded rod pushes the clamping plate to move in the groove of the frame, thereby clamping the phased array probe and fixing it. Phased array testing is an ultrasonic non-destructive testing technology. Its core principle is to use a probe array composed of multiple independently controlled piezoelectric crystals (array elements). By precisely controlling the time delay (phase) of the ultrasonic pulse emitted or received by each crystal, the dynamic control of the ultrasonic beam is achieved, thereby realizing the inspection of the weld. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the assembly structure of the clamp block and the cross plate in this utility model; Figure 3 This is a schematic diagram of the assembly structure of the concave shell and vertical plate of this utility model; Figure 4 This is a schematic diagram of the assembly structure of the fixing plate, wheel frame and magnetic wheel of this utility model; Figure 5 This is a schematic diagram of the frame and clamping plate structure of this utility model; Figure 6 This is a schematic diagram of the weld inspection structure of this utility model.

[0021] In the diagram: 1. Fixed plate; 2. Encoder positioning device; 3. Horizontal plate; 4. Wheel frame; 5. Concave shell; 6. Vertical plate; 7. Phased array probe; 8. Vertical sleeve; 9. Vertical groove; 10. Limiting plate; 11. Spring; 12. Magnetic suction wheel; 13. Slide groove; 14. Slider; 15. Frame; 16. Clamping plate; 17. Threaded rod; 18. Clamping block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example Please see Figures 1-6 The diagram shows a phased array scanning device for inspecting fillet welds of pressure vessel nozzles, comprising a fixed plate 1, a horizontal plate 3 bolted to the wall of the fixed plate 1, a clamping block 18 slidably connected to the wall of the horizontal plate 3, a vertical sleeve 8 welded to the wall of the clamping block 18 for connecting a vertical plate 6, a vertical plate 6 connected to the inner wall of the vertical sleeve 8, one end of the vertical plate 6 connected to the inner wall of a concave shell 5 by a spring 11, and a frame 15 for connecting a phased array probe 7 fixed to the wall of the concave shell 5.

[0024] In this scheme, when inspecting the weld, the operator moves the clamp block 18, causing it to move along the wall of the horizontal plate 3. This adjusts the lateral position of the phased array probe 7. Since the clamp block 18 has a vertical sleeve 8 welded to its wall, the operator moves the vertical plate 6 inside the vertical sleeve 8. After adjusting the distance between the vertical plate 6 and the tank wall, the base of the phased array probe 7 is attached to the tank wall. Once the base of the phased array probe 7 is attached to the tank, the phased array probe 7 is located within the frame 15, which is connected to the concave shell 5. The concave shell 5 is connected to the vertical plate 6 via a spring 11. This allows the base of the phased array probe 7 to be positioned at the tank wall of the pressure vessel, enabling dynamic adjustment between the phased array probe 7 and the pressure vessel and improving the stability of the inspection.

[0025] For further details, please refer to [link / reference]. Figure 1 and Figure 4 The side walls of the fixed plate 1 are slidably connected to wheel frames 4, and the grooves of the wheel frames 4 are slidably connected to magnetic suction wheels 12 on the side walls of the suction pipe. Specifically, the wheel frame 4 is used to install the magnetic roller 12, which is used to attract the pipe. When performing a circumferential inspection of the weld, the personnel push the vertical plate 6 to make the magnetic roller 12 move around the pipe wall of the pipe to achieve the inspection of the weld.

[0026] For further details, please refer to [link / reference]. Figure 1 and Figure 5 A slider 14 is welded to the frame wall of the wheel frame 4. The slider 14 is located in the groove 13 on the side wall of the fixed plate 1. A bolt is threaded to the frame wall of the wheel frame 4. The other end of the bolt is located in the groove 13. Specifically, by moving the wheel frame 4, the slider 14 moves within the slide groove 13, adjusting the distance between the wheel frames 4, so that the magnetic suction wheel 12 at the concave part of the wheel frame 4 can attract pipes of different heights. After the wheel frame 4 is fixed, the personnel tighten the bolts, causing the bolts to press against the inner wall of the slide groove 13, thereby fixing the wheel frame 4.

[0027] For further details, please refer to [link / reference]. Figure 1 An encoder positioning device 2 for recording the probe position is fixed on the wall of the fixed plate 1; Specifically, the encoder positioning device 2 is used to record the probe position in real time to avoid missing weld seams.

[0028] For further details, please refer to Figures 2-3 A limiting plate 10 is welded to the inner side wall of the concave shell 5, and a vertical groove 9 for limiting the limiting plate 10 is provided on the side wall of the vertical plate 6. Specifically, after the limiting plate 10 is inserted into the vertical groove 9, the vertical groove 9 limits the limiting plate 10. Pulling the vertical plate 6 causes the vertical plate 6 to move within the vertical sleeve 8. After the bolt is tightened, the bolt presses against the vertical plate 6, fixing the vertical plate 6. Thus, the vertical plate 6 moves within the concave shell 5. The spring 11 applies a set of opposite forces, causing the spring 11 to be compressed. After the spring 11 is compressed, the bottom of the phased array probe 7 is attached to the tank wall of the pressure vessel, and the phased array probe 7 detects the weld.

[0029] For further details, please refer to Figure 1 , Figure 2 and Figure 5 Both ends of the frame 15 are threaded with rotating threaded rods 17, and one end of the threaded rod 17 is connected to the wall of the clamping plate 16 through a bearing.

[0030] Specifically, after the threaded rod 17 is turned, the threaded rod 17 rotates on the side wall of the frame 15. The threaded rod 17 pushes the clamping plate 16 to move in the groove of the frame 15, so that the clamping plate 16 clamps the phased array probe 7 and fixes the phased array probe 7.

[0031] For further details, please refer to Figures 1-2 The clamping plate 16 has a phased array probe 7 for detecting the fillet welds between the pressure vessel and the nozzle connected to its plate wall.

[0032] Specifically, phased array testing is an ultrasonic non-destructive testing technology. Its core principle is to use a probe array composed of multiple independently controlled piezoelectric crystals (array elements) to achieve dynamic control of the ultrasonic beam by precisely controlling the time delay (phase) of each crystal's transmission or reception of ultrasonic pulses, thereby enabling the detection of weld seams.

[0033] In use, when inspecting welds, personnel move the clamp block 18, adjusting its position on the horizontal plate 3. Since a vertical sleeve 8 is welded to the wall of the clamp block 18, personnel move the vertical plate 6 within the sleeve 8, adjusting the distance between the vertical plate 6 and the tank wall. This allows the base of the phased array probe 7 to adhere to the tank wall. Once the base of the phased array probe 7 is attached to the tank, it is located within the frame 15, which is connected to the concave shell 5. The concave shell 5 is connected to the vertical plate 6 via a spring 11. This allows for dynamic adjustment between the phased array probe 7 and the pressure vessel, improving detection stability. The magnetic roller 12 is used for adsorption of the connecting pipe. During the circumferential inspection of the weld, personnel push the vertical plate 6, causing the magnetic roller 12 to move around the pipe wall of the connecting pipe to detect the weld. After the limiting plate 10 is inserted into the vertical groove 9, the phased array probe 7 detects the weld. After turning the threaded rod 17, the threaded rod 17 rotates on the side wall of the frame 15. The threaded rod 17 pushes the clamping plate 16 to move in the groove of the frame 15, thereby clamping the phased array probe 7 and fixing it. Phased array detection is an ultrasonic non-destructive testing technology. Its core principle is to use a probe array composed of multiple independently controlled piezoelectric crystals (array elements). By precisely controlling the time delay (phase) of each crystal to emit or receive ultrasonic pulses, dynamic control of the ultrasonic beam is achieved, thereby realizing the detection of the weld.

[0034] 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 process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A phased array scanning device for inspecting fillet welds in pressure vessel nozzles, characterized in that: include: A fixed plate (1) is provided, and a horizontal plate (3) is installed on the plate wall of the fixed plate (1) by bolts. A clamp block (18) is slidably connected to the plate wall of the horizontal plate (3). A vertical sleeve (8) for connecting the vertical plate (6) is welded to the block wall of the clamp block (18). The vertical plate (6) is connected to the inner wall of the sleeve of the vertical sleeve (8). One end of the vertical plate (6) is connected to the inner wall of the concave shell (5) by a spring (11). A frame (15) for connecting the phased array probe (7) is fixed to the shell wall of the concave shell (5).

2. The phased array scanning device for detecting fillet welds in pressure vessel nozzles according to claim 1, characterized in that: The side of the fixed plate (1) is slidably connected to a wheel frame (4), and the groove of the wheel frame (4) is slidably connected to a magnetic suction wheel (12) on the side wall of the suction tube.

3. The phased array scanning device for detecting fillet welds in pressure vessel nozzles according to claim 2, characterized in that: A slider (14) is welded to the frame wall of the wheel frame (4). The slider (14) is located in the groove (13) on the side wall of the fixed plate (1). A bolt is threaded to the frame wall of the wheel frame (4). The other end of the bolt is located in the groove (13).

4. The phased array scanning device for detecting fillet welds in pressure vessel nozzles according to claim 1, characterized in that: An encoder positioning device (2) for recording the probe position is fixed on the wall of the fixed plate (1).

5. The phased array scanning device for detecting fillet welds in pressure vessel nozzles according to claim 1, characterized in that: A limiting plate (10) is welded to the inner side wall of the concave shell (5), and a vertical groove (9) for limiting the limiting plate (10) is provided on the side wall of the vertical plate (6).

6. The phased array scanning device for detecting fillet welds in pressure vessel nozzles according to claim 1, characterized in that: Both ends of the frame (15) are threaded with rotating threaded rods (17), and one end of the threaded rod (17) is connected to the plate wall of the clamping plate (16) through a bearing.

7. The phased array scanning device for detecting fillet welds in pressure vessel nozzles according to claim 6, characterized in that: The clamping plate (16) is clamped and connected to a phased array probe (7) for detecting the fillet weld between the pressure vessel and the nozzle.

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