Water immersion phased array ultrasonic detection device for on-site pipeline detection

Abstract

The utility model discloses a water immersion phased array ultrasonic detection device for on-site pipeline detection. The water immersion phased array ultrasonic detection device comprises a water immersion structure and a detection structure, the detection structure comprises a frame body, an annular rotating unit and a plurality of detection probes; a detected pipeline transversely penetrates through the water tank through the two sealing units of the water tank; the frame body is connected with the top of the water tank, an annular rotating unit is arranged on the frame body, and a plurality of detection probes are connected with the annular rotating unit; the annular rotating unit is used for driving the plurality of detection probes to rotate around the detected pipeline. The water immersion structure comprises a water tank and two sealing units; according to the utility model, a water immersion structure convenient to mount and dismount is designed, and the device can adapt to detection of pipelines with different pipe diameters. Water immersion type automatic scanning can be achieved, the size of the water tank is customized according to the specification of a pipeline, the water immersion phased array ultrasonic detection device is small in size, convenient to carry and suitable for water immersion phased array ultrasonic detection of pipelines of various specifications, and no water loss exists in a detection site.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic testing equipment, and in particular to a water immersion phased array ultrasonic testing device for on-site pipeline testing. Background Technology

[0002] Water serves as the coupling medium for ultrasonic waves, transmitting ultrasonic energy between the probe and the object being tested. Because the acoustic impedance of water is not significantly different from that of common materials, ultrasonic waves experience minimal attenuation during propagation, effectively transferring energy to the workpiece and reducing sound wave reflection. Furthermore, the water medium allows the probe to maintain a certain distance from the workpiece, eliminating the need for direct contact, which is particularly advantageous when inspecting workpieces with irregular or complex shapes.

[0003] Phased array technology uses an array probe composed of multiple independently controlled ultrasonic crystals. Each crystal (called a channel) can individually emit and receive ultrasonic waves. By controlling the excitation time (phase difference) of different channels, the wavefronts of the ultrasonic waves can be made to interfere in space, thereby achieving beam focusing and direction control. Changing the phase difference can dynamically change the focusing depth and angle of the ultrasonic waves. Phased array technology can scan materials at multiple angles and depths without moving the probe, and can quickly obtain information in multiple directions and depths. This makes phased array technology particularly suitable for inspecting workpieces with complex geometries.

[0004] In existing technologies, when inspecting pipelines on-site, the pipelines are fixed in place and cannot be fully submerged in a water tank, making it inconvenient to perform water immersion phased array ultrasonic testing.

[0005] Therefore, a water immersion phased array ultrasonic testing device for on-site pipeline inspection is needed to solve the above problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A water-immersion phased array ultrasonic testing device for on-site pipeline inspection.

[0008] Includes water immersion structure and detection structure;

[0009] The water immersion structure includes a water tank and two sealing units; a sealing unit is provided on each of the opposite sides of the water tank; a water filling space is provided inside the water tank; the sealing units are detachably connected to the water tank; the sealing units are detachably connected to the pipeline being tested; the water filling space is used to store the water required for testing; the pipeline being tested passes through the two sealing units of the water tank.

[0010] The detection structure includes a frame, a ring-shaped rotating unit, and several detection probes; the frame is connected to the top of the water tank, and the ring-shaped rotating unit is installed on the frame, with several detection probes connected to the ring-shaped rotating unit; the ring-shaped rotating unit is used to drive several detection probes to rotate around the pipe being detected.

[0011] The preferred water tank has a sealing port on each of its opposite sides. Each sealing unit is connected to the water tank and seals the corresponding sealing port. The sealing unit includes an upper sealing plate and a lower sealing plate. Both the upper and lower sealing plates have openings that fit against the outer wall of the pipe being tested. The upper and lower sealing plates are respectively located on both sides of the pipe being tested and are connected to the water tank.

[0012] Preferably, the sealing unit further includes an upper clamp and a lower clamp, with the upper clamp provided on the open side of the upper sealing plate and the lower clamp provided on the open side of the lower sealing plate; the upper clamp and the lower clamp are detachably connected.

[0013] Preferably, the annular rotating unit includes a toothed ring, a sliding groove, a stepper motor, and a gear; the outer surface of the toothed ring is provided with multiple protruding teeth; the sliding groove is provided on the frame; the output end of the stepper motor is fixedly connected to the gear, and the gear meshes with the protruding teeth; the inner surface of the toothed ring is slidably connected to the sliding groove; the stepper motor is provided on the frame; the toothed ring can rotate around the center of the toothed ring along the sliding groove.

[0014] Preferably, the toothed ring has a semi-circular structure and the sliding groove has an arc-shaped groove structure.

[0015] Preferably, a probe holder is provided at each end of the toothed ring, and each probe holder is provided with a receiving groove for accommodating the detection probe.

[0016] Furthermore, the probe holder is provided with an adjustment groove, and the gear ring is provided with an adjustment hole that matches the adjustment groove.

[0017] Preferably, the adjustment groove has a square groove structure, and the vertical position of the center of the toothed ring relative to the pipe being measured is adjusted by adjusting the adjustment groove.

[0018] Preferably, the frame includes a crossbar and a fixed frame; the stepper motor and the slide are both mounted on the fixed frame; the crossbar is provided with a horizontal groove, and the fixed frame is provided with a fixing hole that matches the horizontal groove; the horizontal groove is used to place a corresponding washer or nut, and the corresponding washer or nut can slide in the horizontal groove.

[0019] Preferably, the fixing hole has a rectangular structure, and the horizontal position of the center of the toothed ring relative to the pipe being measured can be adjusted through the fixing hole.

[0020] Preferably, the upper sealing plate and the lower sealing plate are screwed to the water tank respectively.

[0021] Preferably, the upper clamp and the lower clamp are detachably connected by bolts.

[0022] Preferably, the opening is semi-circular.

[0023] Preferably, a water collection trough is provided at the bottom of the water tank, the water pump is fixedly installed on the water tank, the input end of the water pump is connected to the water collection trough, and the output end of the water pump is connected to the water tank.

[0024] Preferably, two moving units are symmetrically arranged on the top of the water tank, and the moving units are respectively connected to both ends of the frame; the two moving units are used to drive the frame to move along the pipe being measured.

[0025] Preferably, the moving unit is a linear guide rail or a linear module, and the moving end of the moving unit is connected to the frame.

[0026] Preferably, the detection probe is connected to the phased array host.

[0027] Preferably, the stepper motor and the moving unit are connected to the controller; the controller detects the probe's circumferential and axial scanning of the pipeline being inspected.

[0028] Furthermore, the water pump is connected to the controller.

[0029] Preferably, the controller is a PLC controller or a computer.

[0030] Preferably, the detection probe is an ultrasonic probe.

[0031] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0032] This invention combines the advantages of water immersion method and phased array technology, enabling the detection of defects such as weld seams, base material, and corrosion thinning in pipelines at the inspection site.

[0033] This utility model features a water immersion structure that is easy to install and disassemble, and can also be adapted to the inspection of pipes of different diameters.

[0034] This utility model is equipped with a stepper motor and a moving unit, which can realize automatic water immersion scanning. The size of the water tank is customized according to the pipe specifications. It is small in size, easy to carry, and suitable for water immersion phased array ultrasonic testing of pipes of various specifications. There is no water loss at the inspection site. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1This is a schematic diagram of a water immersion phased array ultrasonic testing device for on-site pipeline inspection according to the present invention.

[0037] Figure 2 This is a schematic diagram of a water immersion phased array ultrasonic testing device for on-site pipeline inspection according to the present invention.

[0038] Figure 3 This is a schematic diagram of the annular rotating unit of a water immersion phased array ultrasonic testing device for on-site pipeline inspection according to this utility model.

[0039] Explanation of main component symbols

[0040]

[0041]

[0042] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to imply non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] Please see Figure 1-3This utility model provides a water immersion phased array ultrasonic testing device for on-site pipeline testing, including a water immersion structure 1 and a testing structure 2.

[0046] The water immersion structure 1 includes a water tank 11 and two sealing units; a sealing unit is provided on each of the opposite sides of the water tank 11; a water filling space is provided inside the water tank 11; the sealing unit is detachably connected to the water tank 11; the sealing unit is detachably connected to the pipeline to be tested 101; the water filling space is used to store the water required for testing; the pipeline to be tested 101 passes through the two sealing units of the water tank 11.

[0047] The detection structure 2 includes a frame 21, a ring-shaped rotating unit, and several detection probes; the frame 21 is connected to the top of the water tank, and the ring-shaped rotating unit is installed on the frame 21, with several detection probes connected to the ring-shaped rotating unit; the ring-shaped rotating unit is used to drive several detection probes to rotate around the pipe being detected.

[0048] In one embodiment of this utility model, a sealing port 111 is provided on each of the opposite sides of the water tank 11. Each sealing unit is connected to the water tank 11 and seals the corresponding sealing port 111. The sealing unit includes an upper sealing plate 112 and a lower sealing plate 113. Both the upper sealing plate 112 and the lower sealing plate 113 are provided with openings that fit against the outer wall of the pipe 101 being tested. The upper sealing plate 112 and the lower sealing plate 113 are respectively provided on both sides of the pipe 101 being tested, and the upper sealing plate 112 and the lower sealing plate 113 are connected to the water tank 11.

[0049] In one embodiment of the present invention, the sealing unit includes an upper clamp 114 and a lower clamp 115. The upper clamp 114 is provided on one side of the opening 116 of the upper sealing plate 112, and the lower clamp 115 is provided on one side of the opening 116 of the lower sealing plate 113. The upper clamp 114 and the lower clamp 115 are detachably connected.

[0050] Due to dimensional deviations in the pipe diameter, a large gap may form at the connection between the opening 116 of the upper sealing plate 112 and the lower sealing plate 113 and the pipe being tested. The upper clamp 114 and the lower clamp 115 are used to tighten the pipe being tested, reducing the rate of water loss. The upper sealing plate 112 and the lower sealing plate 113 are customized according to the specifications of different pipes being tested.

[0051] In one embodiment of this utility model, the annular rotating unit includes a toothed ring 41, a sliding groove 42, a stepper motor 43, and a gear 44. The outer surface of the toothed ring 41 is provided with multiple protruding teeth 411. The sliding groove 42 is disposed on the frame 21. The output end of the stepper motor 43 is fixedly connected to the gear 44, and the gear 44 meshes with the protruding teeth 411. The inner surface of the toothed ring 41 is slidably connected to the sliding groove 42. The stepper motor 43 is disposed on the frame 21. The toothed ring 41 can rotate around the center of the toothed ring along the sliding groove 42.

[0052] In one embodiment of this utility model, the toothed ring 41 has a semi-circular structure, and the sliding groove 42 has an arc-shaped groove structure.

[0053] In one embodiment of the present invention, a probe holder 401 is provided at each end of the toothed ring 41, and each probe holder 401 is provided with a receiving groove 412 for accommodating the detection probe.

[0054] Furthermore, the probe holder 401 is provided with an adjustment groove 413, and the gear ring 41 is provided with an adjustment hole 414 that matches the adjustment groove 413. By passing a bolt through both the adjustment groove 413 and the adjustment hole 414, the position of the probe holder 401 is adjusted according to the water depth, and then the bolt and nut are tightened to fix the probe holder 401 and the gear ring 41.

[0055] Furthermore, the adjustment groove 413 has a square groove structure, and the vertical position of the center of the toothed ring 41 relative to the pipe being measured is adjusted by adjusting the adjustment groove 413.

[0056] In one embodiment of this utility model, the frame 21 includes a crossbar 211 and a fixed frame 212; the stepper motor 43 and the slide groove 42 are both mounted on the fixed frame 212; the crossbar 211 is provided with a transverse groove 213, and the fixed frame 212 is provided with a fixing hole 214 that matches the transverse groove 213; the transverse groove 213 is used to place a corresponding washer or nut, which can slide within the transverse groove 213. In use, a bolt is passed through the fixing hole 214, and after adjusting the position of the washer or nut within the transverse groove 213, the nut is tightened with the corresponding bolt to fix the crossbar 211 to the fixed frame 212. By adjusting the position of the corresponding adjusting washer or nut within the transverse groove 213, the horizontal position of the center of the toothed ring 41 relative to the pipe being measured can be adjusted.

[0057] Furthermore, the fixing hole 214 has a rectangular structure, which allows adjustment of the horizontal position of the center of the toothed ring 41 relative to the pipe being measured. After adjustment, the fixing bracket 212 and the crossbar 211 are fixed by tightening the corresponding shims or nuts and bolts.

[0058] In one embodiment of this utility model, the upper sealing plate 112 and the lower sealing plate 113 are respectively screwed to the water tank 11.

[0059] In one embodiment of this utility model, the upper clamp 114 and the lower clamp 115 are detachably connected by bolts.

[0060] In one embodiment of this utility model, the opening 116 is semi-circular.

[0061] In one embodiment of this utility model, a water collection trough 5 is provided at the bottom of the water tank 11, and a water pump 51 is fixedly installed on the water tank 11. The input end of the water pump 51 is connected to the water collection trough 5, and the output end of the water pump 51 is connected to the water tank 11. The water pump 51 can transport water leaking from the water tank 11 back into the water tank to maintain the water level in the water tank.

[0062] In one embodiment of this utility model, two moving units 110 are symmetrically arranged on the top of the water tank 11, and the moving units 110 are respectively connected to both ends of the frame 21. The two moving units 110 are used to drive the frame 21 to move along the pipe being measured.

[0063] In one embodiment of this utility model, the moving unit 110 is a linear guide rail or a linear module, and the moving end of the moving unit 110 is connected to the frame 21.

[0064] In one embodiment of this utility model, the detection probe is connected to the phased array host.

[0065] In one embodiment of this utility model, the stepper motor 43 and the moving unit 110 are respectively connected to the controller; the controller detects the probe's circumferential and axial scanning of the pipe 101 being tested.

[0066] Furthermore, the water pump 51 is connected to the controller.

[0067] In one embodiment of this utility model, the controller is a PLC controller or a computer.

[0068] In one embodiment of this invention, the detection probe is an ultrasonic probe.

[0069] The implementation process of this utility model is as follows:

[0070] Based on the diameter of the pipe 101 to be tested, select a lower sealing plate 113 with an opening 116 that matches the diameter of the pipe 101 to be tested, and screw the two lower sealing plates 113 to both ends of the water tank 11 respectively.

[0071] Place the water tank 11 below the pipe, and the two sealing plates 113 support the pipe 101 being tested.

[0072] Based on the diameter of the pipe 101 being tested, select an upper sealing plate 112 with a matching pipe diameter. Use hexagonal screws and nuts to install the upper baffle at both ends of the water tank. At this point, the water tank can be fixed to the pipe 101 being tested. The pipe 101 being tested passes through the upper sealing plate 112 and lower sealing plate 113 at both ends of the water tank 11. If the bottom of the pipe 101 being tested is too high from the ground, the water tank 11 can still be mounted on the pipe 101 being tested.

[0073] At the connection points between the water tank 11 and the detection pipe 101, install upper clamps 114 and lower clamps 115, and tighten the upper clamps 114 and lower clamps 115.

[0074] Fill the water tank 11 with clean water until the detection pipe 101 is submerged. If any leakage occurs at the connection points of the water tank 11, the overflowing water enters the water collection tank 5. Turn on the water pump 51 to pump the water from the water collection tank 5 back into the water tank 11, keeping the water level in the water tank 11 constant. Insert the detection probe into the corresponding receiving slot 412. The moving unit 110 drives the detection probe to scan axially along the detected pipe 101, and the stepper motor 43 drives the detection probe to scan circumferentially along the detected pipe 101.

[0075] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A water immersion phased array ultrasonic testing device for on-site pipeline inspection, characterized in that: Includes water immersion structure and detection structure; The water immersion structure includes a water tank and two sealing units; a sealing unit is provided on each of the opposite sides of the water tank; a water filling space is provided inside the water tank; the sealing units are detachably connected to the water tank; the sealing units are detachably connected to the pipeline being tested; the water filling space is used to store the water required for testing; the pipeline being tested passes through the two sealing units of the water tank. The detection structure includes a frame, a ring-shaped rotating unit, and several detection probes; the frame is connected to the top of the water tank, and the ring-shaped rotating unit is installed on the frame, with several detection probes connected to the ring-shaped rotating unit; the ring-shaped rotating unit is used to drive several detection probes to rotate around the pipe being detected.

2. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 1, characterized in that: A sealing port is provided on each of the opposite sides of the water tank. Each sealing unit is connected to the water tank and seals the corresponding sealing port. The sealing unit includes an upper sealing plate and a lower sealing plate. Both the upper and lower sealing plates are provided with openings that fit against the outer wall of the pipe being tested. The upper and lower sealing plates are respectively located on both sides of the pipe being tested and are connected to the water tank.

3. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 2, characterized in that: The sealing unit includes an upper clamp and a lower clamp. The upper clamp is provided on the open side of the upper sealing plate, and the lower clamp is provided on the open side of the lower sealing plate. The upper clamp and the lower clamp are detachably connected.

4. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 1, characterized in that: The annular rotating unit includes a toothed ring, a sliding groove, a stepper motor, and a gear; the outer surface of the toothed ring is provided with multiple protruding teeth; the sliding groove is set on the frame; the output end of the stepper motor is fixedly connected to the gear, and the gear meshes with the protruding teeth; the inner surface of the toothed ring is slidably connected to the sliding groove; the stepper motor is set on the frame; the toothed ring can rotate around the center of the toothed ring along the sliding groove.

5. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 4, characterized in that: The toothed ring has a semi-circular structure, and the sliding groove has an arc-shaped groove structure; a probe holder is provided at each end of the toothed ring, and each probe holder is provided with a receiving groove for accommodating the detection probe.

6. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 5, characterized in that: The probe holder is equipped with an adjustment groove, and the gear ring is equipped with an adjustment hole that matches the adjustment groove.

7. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 6, characterized in that: The adjustment groove has a square groove structure, and the vertical position of the center of the toothed ring relative to the pipe being measured is adjusted by adjusting the adjustment groove.

8. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 1, characterized in that: The frame includes a crossbar and a fixed frame; the stepper motor and slide are both mounted on the fixed frame; the crossbar has a horizontal groove, and the fixed frame has a fixing hole that matches the horizontal groove; the horizontal groove is used to place the corresponding washer or nut, and the corresponding washer or nut can slide in the horizontal groove. The horizontal position of the center of the toothed ring relative to the pipe being measured is adjusted by the fixing hole.

9. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 1, characterized in that: A water collection trough is provided at the bottom of the water tank, and the water pump is fixedly installed on the water tank. The input end of the water pump is connected to the water collection trough, and the output end of the water pump is connected to the water tank.

10. The water immersion phased array ultrasonic testing device for on-site pipeline inspection as described in claim 1, characterized in that: Two moving units are symmetrically arranged on the top of the water tank, and the moving units are connected to both ends of the frame respectively; the two moving units are used to drive the frame to move along the pipe being measured.

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