Scanning device for phased array detection of large-diameter high-temperature pipeline special-shaped component

Abstract

The scanning device comprises an annular seat, a clamping assembly, a sliding assembly, a transmission assembly, a detection assembly and a control assembly, the annular seat comprises a plurality of sections of arc-shaped sub-seats which are connected, and first mounting grooves penetrating through the arc-shaped sub-seats in the thickness direction are formed in the arc-shaped sub-seats; the clamping assembly comprises a plurality of clamping pieces mounted on the inner circumference of the annular seat through the first mounting grooves, and the clamping pieces are used for clamping the outer wall of a pipe body; the peripheral wall of the arc-shaped sub-seat is further provided with a guide structure in sliding connection with the sliding assembly. The transmission assembly, the control assembly and the detection assembly are arranged on the sliding assembly, the detection assembly is detachably connected to the sliding assembly through a quick release assembly, and the control assembly controls the sliding assembly to move in the circumferential direction of the annular base through the transmission assembly. And the detection assembly is used for scanning and detecting the pipe body.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of pipeline inspection technology, specifically relating to a scanning device for phased array inspection of irregularly shaped components in large-diameter high-temperature pipelines. Background Technology

[0002] Large-diameter high-temperature pipelines often operate at temperatures exceeding 550℃, and many have already exceeded their design limits, enduring long-term exposure to high temperatures, high pressures, and corrosive media. Due to their complex structures and significant stress concentrations, irregularly shaped components (such as tees, elbows, and reducers) and butt welds are highly susceptible to defects such as cracks, incomplete fusion, and corrosion thinning. Failure to detect these defects promptly and accurately can lead to serious accidents such as pipeline cracking and leaks, and pipe bursts, resulting in significant casualties and economic losses.

[0003] Existing scanning devices for detecting defects in large-diameter high-temperature pipelines are often difficult to adapt to the installation and fixing requirements of pipelines of different diameters. They are prone to slippage and displacement at irregular parts such as tees and elbows. Moreover, the probes of existing scanning devices are mostly integrated fixed designs, making the disassembly and assembly process complicated. When the probe malfunctions or different models of probes need to be replaced according to the detection scenario, the operation is cumbersome and time-consuming.

[0004] Therefore, how to solve the above problems has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The embodiments disclosed herein aim to at least solve one of the technical problems existing in the prior art, and provide a scanning device for phased array detection of irregular components in large-diameter high-temperature pipelines.

[0006] One aspect of the embodiments of this disclosure provides a scanning device for phased array inspection of irregularly shaped components in large-diameter high-temperature pipelines, comprising: The device includes an annular seat, a clamping assembly, a sliding assembly, a transmission assembly, a detection assembly, and a control assembly. The annular seat comprises multiple interconnected arc-shaped sub-seats, each with a first mounting groove extending through its thickness. The clamping assembly includes multiple clamping members mounted on the inner circumference of the annular seat through the first mounting groove. The clamping members are used to clamp the outer wall of the tube. The outer peripheral wall of the arc-shaped sub-base is also provided with a guide structure that is slidably connected to the sliding assembly; the sliding assembly is respectively provided with the transmission assembly, the control assembly and the detection assembly, the detection assembly is detachably connected to the sliding assembly through a quick-release assembly, and the control assembly controls the sliding assembly to move circumferentially along the annular seat through the transmission assembly, so as to use the detection assembly to scan and detect the tube body.

[0007] Optionally, the guide structure includes two sliding rails protruding from the outer peripheral wall of the arc-shaped sub-base and spaced apart, and a plurality of meshing teeth arranged circumferentially around the arc-shaped sub-base between the two sliding rails; the sliding assembly is slidably connected to the sliding rails, and the transmission assembly includes an output motor disposed on the arc-shaped sub-base, a transmission gear drivenly connected to the output motor, and a rotating shaft drivenly connected between the output motor and the transmission gear, wherein the transmission gear is meshed with the meshing teeth.

[0008] Optionally, the end of the arc-shaped sub-base is provided with a locking groove extending circumferentially therein, and the locking groove has a first locking hole on the groove wall at the end of the extending direction. The first locking hole corresponding to two adjacent arc-shaped sub-bases is passed through by a fastener to achieve a fixed connection between the two adjacent arc-shaped sub-bases.

[0009] Optionally, the clamping component includes a fixing screw, a sleeve, a hexagonal locking block, and a soft rubber pad. One end of the fixing screw is fixedly connected to the first mounting groove, and the sleeve is sleeved on the outer periphery of the other end of the fixing screw. The hexagonal locking block is fastened to the outer periphery of the sleeve, and the soft rubber pad is fixedly connected to one end of the sleeve and is used to abut against the tube body.

[0010] Optionally, the sliding assembly includes a fixed plate, a first slider, and a second slider. The fixed plate has a through groove. Along the axial direction of the arc-shaped sub-base, the first slider is fixedly connected to one side of the fixed plate, and the first slider is slidably connected to the sliding track. The opposite side of the fixed plate is connected to the second slider through a screw drive mechanism, and the second slider is slidably connected to the sliding track. The second slider abuts against the bottom of the fixed plate.

[0011] Optionally, the lead screw propulsion mechanism includes an adjusting lead screw, a knob, and a bearing. The fixed plate is provided with a first shaft hole, and the second slider is provided with a second shaft hole. One end of the adjusting lead screw is equipped with the knob, and the other end passes through the first shaft hole and is connected to the second shaft hole through the bearing. The inner ring of the bearing is connected to the adjusting lead screw, and its outer ring is connected to the second slider.

[0012] Optionally, the output motor is further covered with a protective shell, which is fixed to the fixing plate. A top plate is also fixedly connected to the top of the fixing plate. The top plate has second mounting slots on opposite sides along its length. Each second mounting slot is equipped with a locking block, and the locking block has a second locking hole.

[0013] Optionally, the control component includes a control box, which is fixedly installed on the top of the top plate, and a signal receiver and a central control motherboard are also fixedly installed inside the control box.

[0014] Optionally, the detection component includes a fixing block, a connecting plate, and a phased array detector; the two ends of the fixing block are respectively fixedly connected to the connecting plate, the connecting plate is provided with a third mounting slot, the phased array detector is installed on the fixing block, and is electrically connected to a remote terminal display through a cable.

[0015] Optionally, the detection component is mounted on the top plate via the quick-release assembly. The quick-release assembly includes two mounting shells, which are respectively fixedly installed inside the two third mounting slots. A main rod is installed inside the mounting shell. Two locking rods are symmetrically installed at the bottom of the main rod. A button is fixedly installed at the top of the main rod. A spring is sleeved in the middle of the main rod, and one end of the spring is fixedly connected to the inside of the mounting shell.

[0016] The beneficial effects of the embodiments of this disclosure include: By employing a ring-shaped base composed of multiple arc-shaped sub-bases, a modular design and flexible adjustment are achieved, enabling it to adapt to the inspection needs of pipelines with different diameters, especially large diameters and irregularly shaped components. Its clamping components can be firmly fixed to the pipeline surface, effectively preventing slippage or displacement during inspection and ensuring reliable positioning under high temperature and vibration environments. The sliding component, in conjunction with the guide structure and transmission component, drives the inspection component to move smoothly along the circumference of the pipeline under the drive of the control component, achieving precise control of the inspection trajectory and consistent scanning. The inspection component can be quickly disassembled and assembled without tools via a quick-release component, greatly facilitating probe replacement, maintenance, and model switching, improving on-site operation efficiency. The overall integrated intelligent control supports remote command reception and data feedback, reducing operational difficulty and the risk of misjudgment. This device comprehensively improves the adaptability, stability, accuracy, and ease of operation of inspection, and is suitable for reliable phased array inspection of welds and irregularly shaped components in large-diameter pipelines under high temperature and high pressure environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a scanning device for phased array detection of irregular components in large-diameter high-temperature pipelines, according to an embodiment of the present disclosure. Figure 2 This is a schematic diagram of the structure of a scanning device for phased array detection of irregular components in large-diameter high-temperature pipelines, according to another embodiment of this disclosure. Figure 3 This is a partial structural schematic diagram of the scanning device in one embodiment of the present disclosure; Figure 4 This is a schematic diagram of the clamping component in one embodiment of the present disclosure; Figure 5 This is a schematic diagram of the transmission assembly in one embodiment of the present disclosure; Figure 6 This is a schematic diagram of the top plate structure in one embodiment of the present disclosure; Figure 7 This is a schematic diagram of the structure of the quick-release component in one embodiment of the present disclosure; Figure 8 for Figure 1 Enlarged view of a portion of region A in the middle; Figure 9 This is a schematic diagram of the structure of the control component in one embodiment of the present disclosure.

[0018] In the diagram: 1. Pipe body; 2. Weld seam; 3. Arc-shaped sub-seat; 4. Meshing teeth; 5. Sliding rail; 6. Locking groove; 7. First locking hole; 8. Bolt; 9. First mounting groove; 10. Fixing screw; 11. Sleeve; 12. Hexagonal locking block; 13. Soft rubber pad; 14. Fixing plate; 15. Through groove; 16. First slider; 17. Adjusting screw; 18. Knob; 19. Bearing; 20. Second slider; 21. Output motor; 22. Rotating shaft; 23. Transmission gear; 24. Protective shell; 25. Top plate; 26. Control box 27. Signal receiver; 28. Central control motherboard; 29. ​​Second mounting slot; 30. Locking block; 31. Second locking hole; 32. Fixing block; 33. Connecting plate; 34. Third mounting slot; 35. Mounting shell; 36. Main rod; 37. Locking rod; 38. Button; 39. Spring; 40. Phased array detector; 41. Terminal display; 42. Ring seat; 43. Clamping assembly; 44. Sliding assembly; 45. Guide structure; 46. Transmission assembly; 47. Control assembly; 48. Detection assembly; 49. Quick release assembly. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed descriptions and accompanying drawings of the following embodiments are used to exemplarily illustrate the principles of this application, but should not be used to limit the scope of this application; that is, this application is not limited to the described embodiments. In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0022] like Figure 1-9 As shown, a scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines includes an annular seat 42, a clamping assembly 43, and a sliding assembly 44. The annular seat 42 includes multiple interconnected arc-shaped sub-seats 3. Two first mounting grooves 9 are formed on the arc-shaped sub-seats 3, and the two first mounting grooves 9 are arranged relatively spaced along the axial direction of the arc-shaped sub-seats 3. The clamping assembly 43 includes multiple clamping members, each clamping member is fixedly disposed in the first mounting groove 9, and at least a portion of the structure of the clamping member extends out of the first mounting groove 9 toward the center of the arc-shaped sub-seat 3 to form a clamping part. The annular seat 42 can be clamped onto the pipe body 1 through the clamping part. The pipe body 1 is composed of two welded sub-pipe segments, and a weld 2 is formed between the two sub-pipe segments.

[0023] The arc-shaped sub-base 3 has a guide structure 45 on the side opposite to the center. The sliding component 44 is slidably connected to the guide structure 45. A transmission component 46 is fixedly installed on the sliding component 44. A control component 47 and a detection component 48 for sensing are fixedly installed on one side of the connection between the sliding component 44 and the transmission component 46. A quick-release component 49 is fixedly installed on the detection component 48. The detection component 48 is detachably connected to the sliding component 44 through the quick-release component 49. The control component 47 controls the sliding component 44 to move circumferentially along the annular seat 42 through the transmission component 46, so as to use the detection component 48 to scan and detect the tube body.

[0024] In some embodiments, see Figure 1 , Figure 3 , Figure 4 The guide structure 45 includes a sliding track 5 and multiple meshing teeth 4. The sliding track 5 protrudes from the arc-shaped sub-base 3 towards the side away from its center. There are two sliding tracks 5, arranged at intervals along the axial direction of the arc-shaped sub-base 3. The multiple meshing teeth 4 are fixedly arranged on the side of the arc-shaped sub-base 3 away from its own center, and are equally spaced. The sliding assembly 44 is slidably connected to the sliding track 5. The transmission assembly 46 includes an output motor 21 and a transmission gear 23. The output motor 21 is fixed relative to the arc-shaped sub-base 3 and drives the transmission gear 23, which meshes with the meshing teeth 4.

[0025] This design, with its sliding track and equidistant meshing teeth, combined with the transmission gear driven by the output motor, forms a rack and pinion transmission pair. This enables the sliding component to move precisely and smoothly on the arc-shaped sub-base, avoiding deviations in the detection trajectory caused by slippage or vibration during the scanning process, and improving the consistency and repeatability of the detection.

[0026] Furthermore, the arc-shaped sub-base 3 is provided with four locking grooves 6. Along the extending direction of the arc-shaped sub-base 3, the four locking grooves 6 are arranged in pairs on opposite sides of the arc-shaped sub-base 3, and the two locking grooves 6 on each side are spaced apart. A first locking hole 7 is provided on the first groove wall of the locking groove 6, and the first groove wall is the side wall where the end face of the arc-shaped sub-base 3 is located in the extending direction. The first locking holes 7 between adjacent arc-shaped sub-bases 3 in the annular seat 42 are correspondingly arranged so that the first locking holes 7 between adjacent arc-shaped sub-bases 3 are fixedly connected by bolts 8.

[0027] When assembling the annular seat 42, align the locking grooves 6 of adjacent arc-shaped sub-seats 3 so that the corresponding first locking holes 7 are connected. Tighten the bolts 8 by passing them through the connected first locking holes 7. The locking force of the bolts 8 is used to fix and connect multiple arc-shaped sub-seats 3 to form an annular detection base that is compatible with the tube body 1.

[0028] This design, by setting locking grooves and first locking holes on both sides of the arc-shaped sub-base and using fasteners to connect adjacent arc-shaped sub-bases, ensures a robust and reliable splicing structure with high overall rigidity. This effectively prevents loosening at the splice joints due to vibration or load during testing, thus guaranteeing the stability of the ring-shaped testing base. The fasteners include bolts.

[0029] In some embodiments, see Figure 5The clamping component includes a fixing screw 10, a sleeve 11, a hexagonal locking block 12, and a soft rubber pad 13. One end of the fixing screw 10 is fixedly connected to the first mounting groove 9, and the sleeve 11 is sleeved on the outer periphery of the other end of the fixing screw 10. The hexagonal locking block 12 is fastened to the outer periphery of the sleeve 11, and the soft rubber pad 13 is fixedly connected to one end of the sleeve 11. The soft rubber pad 13 is used to abut against the tube body 1.

[0030] With this design, the fixing screw 10 is fixed in the first mounting groove 9, and the sleeve 11 and the fixing screw 10 form a threaded transmission pair. Rotating the hexagonal locking block 12 can drive the sleeve 11 to move axially along the fixing screw 10, thereby adjusting the length of the soft rubber pad 13 extending relative to the arc-shaped sub-base 3, thereby controlling the distance between the soft rubber pad 13 and the pipe body 1 to adapt to pipes of different diameters.

[0031] In other words, the clamping component adopts a combination structure of a fixed screw, sleeve, hexagonal locking block and soft rubber pad. The extension length of the sleeve can be adjusted by rotating the hexagonal locking block. The soft rubber pad makes flexible contact with the pipe surface, which can not only adapt to the clamping requirements of different pipe diameters, but also avoid damage to the surface of high-temperature or coated pipes, thus balancing clamping force and pipe protection.

[0032] In some embodiments, the sliding assembly 44 further includes a fixed plate 14, a first slider 16, and a second slider 20. The fixed plate 14 has a through groove 15 and is configured as a mounting carrier for each component. Along the axial direction of the arc-shaped sub-base 3, the first slider 16 is fixedly connected to one side of the fixed plate 14, and the first slider 16 is slidably connected to the sliding track 5. The other side of the fixed plate 14 is connected to the second slider 20 via a screw drive mechanism. The screw drive mechanism includes an adjusting screw 17, a knob 18, and a bearing 19. The fixed plate 14 has a first shaft hole, and the second slider 20 has a second shaft hole. One end of the adjusting screw 17 is fitted with the knob 18, and the other end passes through the first shaft hole and is connected to the second shaft hole via the bearing 19. The inner ring of the bearing 19 is fixed to the adjusting screw 17, and the outer ring is fixedly connected to the second slider 20. The second slider 20 abuts against the bottom of the fixed plate 14 and is slidably connected to the sliding track 5 on the opposite side of the first slider 16.

[0033] During operation, rotating the knob 18 drives the adjusting screw 17 to rotate. Since the second slider 20 is guided by the bottom plane of the fixed plate 14 and cannot rotate, the rotational motion of the screw 17 is converted into a linear thrust on the second slider 20 through the bearing 19, causing the second slider 20 to move closer to or further away from the sub-rail of the sliding track 5. This structure enables the sliding assembly 44 to be quickly and accurately clamped and released on the track, ensuring stable attachment and flexible adjustment of the device during the testing process. Furthermore, it can be operated without tools, greatly improving assembly efficiency and adaptability.

[0034] In other words, the sliding assembly, through the combination design of a fixed plate, a first slider, and a second slider, combined with a screw drive mechanism, achieves rapid clamping and loosening with the sliding track. It can be flexibly adjusted and locked on tracks with different pipe diameters, enhancing the device's adaptability to pipes of different sizes and improving assembly efficiency. The screw drive mechanism adopts a cooperative structure of adjusting screw, knob, and bearing. By rotating the knob, the second slider can be moved along the track direction, achieving tool-free rapid locking. It is easy to operate and has high adjustment accuracy, ensuring a tight fit between the sliding assembly and the track and improving scanning stability.

[0035] In some embodiments, see Figure 3 , Figure 4 and Figure 5 The transmission assembly 46 includes an output motor 21, a rotating shaft 22, and a transmission gear 23. The output motor 21 is fixedly mounted on the fixed plate 14, and its output end is connected to one end of the rotating shaft 22. The other end of the rotating shaft 22 is fixedly mounted with the transmission gear 23. The transmission gear 23 meshes with the equidistant meshing teeth 4 on the outside of the arc-shaped sub-base 3, forming a gear and rack transmission pair.

[0036] In this way, the transmission component forms a rack and pinion transmission system through the output motor, rotating shaft and transmission gear. The transmission gear meshes with the meshing teeth on the arc-shaped sub-base, converting the rotational motion of the motor into the smooth linear motion of the sliding component. The power transmission is reliable and the noise is low, making it suitable for long-term operation in high-temperature and vibrating industrial environments.

[0037] The output motor 21 is covered with a protective shell 24, which is fixed to the fixing plate 14 to protect the motor from interference from the construction site environment. In addition, a top plate 25 is fixedly connected to the top of the fixing plate 14. The top plate 25 has two second mounting slots 29 spaced apart on opposite sides along its length. Each second mounting slot 29 is equipped with a locking block 30, and the locking block 30 has a second locking hole 31.

[0038] In this way, the output motor 21 drives the transmission gear 23 to rotate, which meshes with the fixed meshing teeth 4 through the arc-shaped sub-base 3, converting the rotational motion into a smooth linear motion of the sliding component 44 along the circumference of the pipe, thus achieving precise control of the detection trajectory. The protective shell 24 effectively isolates dust, moisture, and mechanical impact, ensuring reliable operation of the motor in high-temperature and dusty industrial environments. The design of the top plate 25 and its locking block 30 provides a stable and easy-to-install interface for the detection component 48, and the overall structure takes into account transmission stability, environmental adaptability, and ease of operation.

[0039] In some embodiments, see Figure 6 and Figure 7The detection component 48 includes a fixing block 32, a connecting plate 33, and a phased array detector 40. A connecting plate 33 is fixedly connected to each end of the fixing block 32, and a third mounting slot 34 is provided in the middle of the connecting plate 33 as a standard interface. The phased array detector 40 is mounted on the fixing block 32 and electrically connected to a remote terminal display 41 via a cable.

[0040] The detection component 48 is mounted on the top plate 25 via a quick-release component 49. The quick-release component 49 is a pin-type spring lock mechanism, comprising two independent and symmetrically arranged locking units. The core of each locking unit is a mounting shell 35, which is fixedly embedded in the third mounting groove 34 of the connecting plate 33 of the detection component 48, forming the mounting base of the quick-release component 49. A main body rod 36 vertically penetrates the interior of the mounting shell 35, and this rod can slide axially and rotate around its axis. Two locking rods 37 are radially symmetrically fixed at the bottom of the main body rod 36, a button 38 is fixed at the top, and a spring 39 is sleeved in the middle. The two ends of the spring 39 abut against the internal structure of the mounting shell 35 and the button 38 (or the shoulder of the main body rod 36), respectively, thereby providing a continuous restoring force to the main body rod 36.

[0041] The quick-release assembly 49 engages with the locking block 30 fixed to the top plate 25 via the locking rod 37. The locking block 30 has a second locking hole 31, the shape of which allows the locking rod 37 to pass through in a specific alignment. The working principle is based on a "press-rotate-lock" mechanical procedure: during installation, the detection assembly 48 is lowered to align the locking rod 37 with the second locking hole 31. The button 38 is pressed, causing the locking rod 37 to move down and pass through the second locking hole 31. Then, the button 38 is rotated approximately 90 degrees, causing the locking rod 37 to rotate and displace the hole. Releasing the button causes the spring 39 to return, firmly locking the locking rod 37 onto the lower surface of the locking block 30, achieving a secure lock. Disassembly is achieved by reversing the operation.

[0042] This design allows the connection between the detection component 48 and the sliding component 44 to be made without any tools, and can be installed and disassembled in seconds by simply operating the button. This greatly improves the efficiency of replacing, repairing or calibrating the detection probe. At the same time, the spring force and mechanical misalignment structure ensure the reliability of the connection in the scanning vibration environment.

[0043] In some embodiments, see Figure 9The control component 47 includes a control box 26, which is fixedly installed at one end of the top of the top plate 25. The control box 26 contains a signal receiver 27 and a central control motherboard 28. The control box 26 is fixed on the top plate 25. The central control motherboard 28 inside serves as the core control unit, receiving instructions from the terminal display 41 and generating control signals to drive the output motor 21 to run according to the set parameters. The signal receiver 27 is responsible for receiving the detection signals transmitted by the phased array detector 40 and transmitting the signals to the central control motherboard 28 for processing. The processed detection data is then fed back to the terminal display 41.

[0044] In this embodiment, the following steps are taken: Several arc-shaped sub-bases 3, each matching the specifications of the tube body 1 to be tested, are selected. Based on the diameter of the tube body 1, each arc-shaped sub-base 3 is placed around and fitted to the periphery of the weld seam 2 of the tube body 1, aligning the locking grooves 6 at the outer corners of adjacent arc-shaped sub-bases 3. Bolts 8 are passed through the first locking holes 7 in the corresponding two locking grooves 6, and the bolts 8 are tightened to complete the splicing and fixing of multiple arc-shaped sub-bases 3, forming an annular testing base adapted to the tube body 1. The hexagonal locking blocks 12 outside the multiple fixing screws 10 are rotated, causing the sleeve 11 to move downwards along the fixing screws 10 until the soft rubber pad 13 at the bottom of the sleeve 11 is tightly fitted to the surface of the tube body 1, achieving a firm clamping between the arc-shaped sub-bases 3 and the tube body 1, preventing device displacement during testing. The first locking hole 7 at the bottom of the fixing plate 14 is then... A slider 16 is attached to one side of the sliding track 5. Rotating the knob 18 drives the adjusting screw 17 to rotate forward, pushing the second slider 20 to move through the bearing 19, so that the second slider 20 is precisely attached to the other side of the sliding track 5, completing the connection between the sliding assembly 44 and the guide structure 45. The output motor 21 is fixedly installed on the fixed plate 14, ensuring that the rotating shaft 22 at its output end is firmly connected to the transmission gear 23, and that the transmission gear 23 accurately meshes with the meshing teeth 4 on the outside of the arc-shaped sub-base 3. Finally, the protective shell 24 is fixed on the fixed plate 14, covering the output motor 21. The control box 26 is fixed on the top plate 25 on the top of the fixed plate 14, ensuring that the signal receiver 27 inside the control box 26 is securely connected to the central control motherboard 28, and that the central control motherboard 28 is securely connected to the output motor 21. The motor 21 is electrically connected to achieve effective transmission of control signals. The phased array detector 40 is fixed to the outside of the fixing block 32, and the third mounting groove 34 on the connecting plates 33 at both ends of the fixing block 32 is aligned with the locking block 30 in the second mounting groove 29 on the top plate 25. Pressing the button 38 pushes the main rod 36 downward, compressing the spring 39 and simultaneously driving the two locking rods 37 to insert into the locking block 30 through the second locking hole 31. Then, the button 38 is rotated 90 degrees to displace the two locking rods 37 from the second locking hole 31. The elastic force released by the spring 39 fixes the connecting plate 33 to the top plate 25, thereby fixing the fixing block 32 and the phased array detector 40 to the top plate 25. The signal is transmitted to the signal receiver in the control box 26 through the terminal display 41. 27 sends a debugging command. Signal receiver 27 transmits the command to central control motherboard 28. Central control motherboard 28 drives output motor 21 to start trial operation. Output motor 21 drives transmission gear 23 to rotate through rotating shaft 22. Transmission gear 23 meshes with meshing teeth 4 on arc-shaped sub-base 3, thereby driving fixed plate 14 to move along sliding track 5 through first slider 16 and second slider 20. According to the detection requirements of weld 2, the detection frequency, signal gain and other parameters of phased array detector 40 are set to ensure that the detection sensitivity meets the requirements. The output signal of phased array detector 40 is observed through terminal display 41. The distance and angle between it and the surface of tube body 1 are adjusted to ensure that the sound beam can accurately cover weld 2 and the surrounding heat-affected zone. After the full circumference scan of weld 2 is completed,A stop command is sent via the terminal display 41, causing the output motor 21 to stop running, and the sliding component 44 and the detection component 48 to stop moving.

[0045] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A scanning device for phased array inspection of irregularly shaped components in large-diameter high-temperature pipelines, characterized in that, include: The device includes an annular seat, a clamping assembly, a sliding assembly, a transmission assembly, a detection assembly, and a control assembly. The annular seat comprises multiple interconnected arc-shaped sub-seats, each with a first mounting groove extending through its thickness. The clamping assembly includes multiple clamping members mounted on the inner circumference of the annular seat through the first mounting groove. The clamping members are used to clamp the outer wall of the tube. The outer peripheral wall of the arc-shaped sub-base is also provided with a guide structure that is slidably connected to the sliding assembly; the sliding assembly is respectively provided with the transmission assembly, the control assembly and the detection assembly, the detection assembly is detachably connected to the sliding assembly through a quick-release assembly, and the control assembly controls the sliding assembly to move circumferentially along the annular seat through the transmission assembly, so as to use the detection assembly to scan and detect the tube body.

2. The scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 1, characterized in that, The guide structure includes two sliding tracks protruding from the outer peripheral wall of the arc-shaped sub-base and spaced apart, and a plurality of meshing teeth arranged circumferentially around the arc-shaped sub-base between the two sliding tracks; the sliding assembly is slidably connected to the sliding tracks, and the transmission assembly includes an output motor disposed on the arc-shaped sub-base, a transmission gear drivenly connected to the output motor, and a rotating shaft drivenly connected between the output motor and the transmission gear, wherein the transmission gear is meshed with the meshing teeth.

3. The scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 1, characterized in that, The end of the arc-shaped sub-base is provided with a locking groove extending circumferentially. The locking groove has a first locking hole on the groove wall at the end of the extension direction. A fastener is used to pass through the first locking hole corresponding to two adjacent arc-shaped sub-bases to achieve a fixed connection between the two adjacent arc-shaped sub-bases.

4. The scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 1, characterized in that, The clamping component includes a fixing screw, a sleeve, a hexagonal locking block, and a soft rubber pad. One end of the fixing screw is fixedly connected to the first mounting groove, and the sleeve is sleeved on the outer periphery of the other end of the fixing screw. The hexagonal locking block is fastened to the outer periphery of the sleeve, and the soft rubber pad is fixedly connected to one end of the sleeve. The soft rubber pad is used to abut against the tube body.

5. A scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 1, characterized in that, The sliding assembly includes a fixed plate, a first slider, and a second slider. The fixed plate has a through groove. Along the axial direction of the arc-shaped sub-base, the first slider is fixedly connected to one side of the fixed plate. The first slider is slidably connected to the sliding track. The opposite side of the fixed plate is connected to the second slider through a screw drive mechanism. The second slider is slidably connected to the sliding track, and the second slider abuts against the bottom of the fixed plate.

6. A scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 5, characterized in that, The lead screw propulsion mechanism includes an adjusting lead screw, a knob, and a bearing. The fixed plate has a first shaft hole, and the second slider has a second shaft hole. One end of the adjusting lead screw is fitted with the knob, and the other end passes through the first shaft hole and is connected to the second shaft hole through the bearing. The inner ring of the bearing is connected to the adjusting lead screw, and its outer ring is connected to the second slider.

7. A scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 2, characterized in that, The output motor is also covered by a protective shell, which is fixed to the fixing plate. A top plate is also fixedly connected to the top of the fixing plate. The top plate has a second mounting groove on each of its opposite sides along its length. A locking block is installed in each of the second mounting grooves, and a second locking hole is opened on the locking block.

8. A scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 7, characterized in that, The control assembly includes a control box, which is fixedly installed on the top of the top plate. A signal receiver and a central control motherboard are also fixedly installed inside the control box.

9. A scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 7, characterized in that, The detection component includes a fixed block, a connecting plate, and a phased array detector; the two ends of the fixed block are respectively fixedly connected to the connecting plate, and a third mounting slot is provided on the connecting plate. The phased array detector is installed on the fixed block and is electrically connected to a remote terminal display through a cable.

10. A scanning device for phased array detection of irregularly shaped components in large-diameter high-temperature pipelines according to claim 9, characterized in that, The detection component is mounted on the top plate via the quick-release assembly. The quick-release assembly includes two mounting shells, which are respectively fixedly installed inside the two third mounting slots. A main rod is installed inside the mounting shell. Two locking rods are symmetrically installed at the bottom of the main rod. A button is fixedly installed at the top of the main rod. A spring is sleeved in the middle of the main rod, and one end of the spring is fixedly connected to the inside of the mounting shell.

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