CN211577064U - Manual scanning device for ultrasonic phased array of polyethylene pipeline welded joint - Google Patents

Manual scanning device for ultrasonic phased array of polyethylene pipeline welded joint Download PDF

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Publication number
CN211577064U
CN211577064U CN201920776914.5U CN201920776914U CN211577064U CN 211577064 U CN211577064 U CN 211577064U CN 201920776914 U CN201920776914 U CN 201920776914U CN 211577064 U CN211577064 U CN 211577064U
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CN
China
Prior art keywords
probe
phased array
ultrasonic phased
bracket
scanner
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Expired - Fee Related
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CN201920776914.5U
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Chinese (zh)
Inventor
金灿华
王强
凌张伟
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China Jiliang University
Zhejiang Special Equipment Inspection and Research Institute
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China Jiliang University
Zhejiang Special Equipment Inspection and Research Institute
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Priority to CN201920776914.5U priority Critical patent/CN211577064U/en
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Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an ultrasonic phased array detection area specifically is a manual scanning device that is used for polyethylene pipe welded joint ultrasonic phased array. Including scanning the ware support, be provided with the handle at scanning ware support both ends symmetry, it is provided with the magnetism wheelset to scan ware support four corners, it is provided with probe clamping device to scan in the central guide rail of looking into the ware support, the magnetism wheelset is including articulating the adjustable wheelset that hinges on scanning the ware support, fix the fixed wheelset on scanning the ware support, probe clamping device central authorities are provided with the probe holding rod of lower extreme threaded structure, the probe support of setting at probe holding rod lower extreme, be provided with the flexible metal-containing guide rail that uses with the cooperation of magnetism wheelset in polyethylene pipe week, keep laminating through magnetic attraction and slide.

Description

Manual scanning device for ultrasonic phased array of polyethylene pipeline welded joint
Technical Field
The utility model relates to an ultrasonic phased array detection area specifically is a manual scanning device that is used for polyethylene pipe welded joint ultrasonic phased array.
Technical Field
In recent 30 years, polyethylene pipes have been used in natural gas engineering in a large number because of their characteristics of good environmental protection, impact resistance, corrosion resistance, easy processing, etc., and have gradually replaced steel pipes in the aspect of natural gas branch lines and water supply pipelines. With the increasing use number of pipelines, the accidents of gas polyethylene pipeline failure also happen continuously. Statistically, the most significant cause of failure in polyethylene pipe is failure at the pipe joints. The connection mode of polyethylene pipeline mainly has two kinds: hot melt welding, electro-fusion welding. The electric fusion welding is mainly used for small-diameter pipelines, and the polyethylene pipelines for gas are generally large-diameter pipes, so that the safety of the hot-melting joints of the polyethylene pipelines is very necessary for ensuring the safety of the polyethylene pipelines for gas.
At present, a method for ensuring the quality of a polyethylene pipe welding joint mainly controls a polyethylene pipe welding process, but careless mistakes can occur in a large-batch and multi-factor welding process, and thus detection is required. Aiming at the hot-melt welding joint of the polyethylene pipeline, the ultrasonic phased array is an ideal detection method, particularly has a good detection effect on holes and cracks generated by hot-melt welding, and the ultrasonic phased array detection method also becomes an important method for detecting the hot-melt joint of the polyethylene pipeline. However, the polyethylene pipeline is different from the traditional metal pipeline, the pipeline material is not a metal material, the traditional ultrasonic scanner cannot be used due to no magnetism, so that the operation of detecting the hot-melt joint of the polyethylene pipeline by using the ultrasonic phased array is mostly manual operation, the manual ultrasonic phased array scanning consumes a long time, and the detection result is greatly influenced by human factors due to the fact that the operation is not standardized enough.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a manual scanning device that is used for polyethylene pipe welded joint ultrasonic phased array. In order to solve the technical problem, the utility model discloses a solution is:
the utility model provides a manual scanning device that is used for polyethylene pipe welded joint ultrasonic phased array, look into the ware support including sweeping the ware support is looked into to sweep ware support both ends symmetry and be fixed with the handle that can promote, it is provided with the magnetism wheelset to sweep ware support four corners of looking into, it is provided with probe clamping device in the central guide rail of looking into the ware support to sweep, the magnetism wheelset is including articulating adjustable wheelset on looking into the ware support, fix sweep and look into fixed wheelset on the ware support, probe clamping device central authorities are provided with lower extreme threaded structure's probe supporting rod, set up probe supporting rod lower extreme is provided with in polyethylene pipe week with the flexible metal-containing guide rail that the cooperation of magnetism wheelset used, keep the laminating to slide through magnetic attraction. The flexible track is made by flexible rubber and is internally provided with flexible metal wires, and is arranged in the circumferential direction of the polyethylene pipeline through the sucking discs at the bottom, namely the flexible track is fixed on the pipe wall of the polyethylene pipeline by the sucking discs at the bottom in an adsorption manner. The encoder, the water wedge and the ultrasonic phased array probe are arranged below the probe bracket and can slide along a track of the probe clamp, the encoder, the probe and the wedge are used for acquiring signals and transmitting the signals to the ultrasonic phased array detector, and a handle on the scanner bracket is pushed to enable the scanner to move and measure on the two flexible metal-containing tracks.
The detection method of the manual scanning device based on the ultrasonic phased array is provided for detecting the hot-melt welding joint of the polyethylene pipeline for the detected gas, and the ultrasonic longitudinal sound velocity of the polyethylene material is about 1800-2400 m/s.
Further, the encoder is a wheel encoder.
Furthermore, the wedge block is a water wedge block, and water is used as a coupling agent.
Further, the C-scan image is obtained by performing axial electronic scanning and circumferential mechanical scanning on the ultrasonic phased array, and the ultrasonic phased array detector processes ultrasonic signals of the axial electronic scanning and the circumferential mechanical scanning according to signals of the encoder and outputs the C-scan image on a display screen of the ultrasonic phased array detector.
The utility model has the advantages that: the utility model provides a detection device contains the metal guide rail through the flexibility and can fix ultrasonic phased array equipment on different bore polyethylene pipelines to can universal regulation realize the voussoir and the laminating of waiting to examine the position through sweeping the ware support of looking into, satisfied among the prior art the manual demand of looking into of sweeping of ultrasonic phased array. Furthermore, the problems of large sound attenuation, poor imaging effect and the like of the polyethylene material can be effectively solved by using a phased array ultrasonic detection technology; aiming at the acoustic characteristics of polyethylene materials, the water wedge block is adopted, the water wedge block can be used for polyethylene pipelines with different curvatures, and the used coupling agent is water, so that the operation is simple and convenient, and the water wedge block is economical and practical.
Drawings
Fig. 1 is a schematic view of the overall mechanical structure of the present invention;
FIG. 2 is a schematic view of a flexible metal-containing track of the invention;
FIG. 3 is a schematic view of the utility model;
in the figure: 1 a flexible metal-containing track; 2, a magnetic wheel set; 21 an adjustable wheel set; 22 fixing the wheel set; 3 a scanner bracket; 31 operating a handle; 4, a probe clamping device; 41 probe clamping rods; 42 a probe mount; 43 wedge probe; 10 a flexible metal wire; 11 a flexible rubber; 12, a sucker; 13 welding the joint by hot melting; 14, a defect; 15 phased array scanning range.
Detailed Description
The following provides a more detailed description of the present invention with reference to the accompanying drawings and detailed description.
The utility model provides a pair of a manual device of looking into of sweeping for polyethylene pipe welded joint ultrasonic phased array, sweep and look into the device and include: an ultrasonic phased array detector 1 comprises a flexible metal-containing guide rail; 2, a magnetic wheel set; 21 an adjustable wheel set; 22 fixing the wheel set; 3 a scanner bracket; 31 operating a handle; 4, a probe clamping device; 41 probe clamping rods; 42 a probe mount; 43 wedge probe; 10 a flexible metal wire; 11 a flexible rubber; 12, a sucker; 13 welding the joint by hot melting; 14, a defect; 15 phased array scanning range.
Sweep and look into ware support both ends symmetry and be fixed with the handle that can promote, it is provided with the magnetism wheelset to sweep and look into ware support four corners, be provided with probe clamping device in the central guide rail of looking into the ware support, the magnetism wheelset is including articulating sweep and look into adjustable wheelset on the ware support, fix sweep and look into fixed wheelset on the ware support, probe clamping device central authorities are provided with lower extreme threaded structure's probe supporting rod, set up and are in the probe support of probe supporting rod lower extreme is provided with on polyethylene pipe week with the flexible metal guide rail that the cooperation of magnetism wheelset was used contains, keeps laminating through magnetism attraction and slides. The flexible track is made of flexible rubber and internally provided with metal wires, is arranged on the circumference of the polyethylene pipeline through a sucker at the bottom, namely is fixed on the wall of the polyethylene pipeline by virtue of the sucker at the bottom in an adsorption manner. Incidentally, the encoder, the water wedge block and the ultrasonic phased array probe are arranged below the probe clamp and can slide along the track of the probe clamp, the encoder, the probe and the wedge block are used for collecting signals and transmitting the signals to the ultrasonic phased array detector, and the handle on the scanner bracket is pushed to enable the scanner to move on two flexible metal-containing tracks for measurement.
As shown in FIG. 2, the flexible metal-containing track 1 is L-shaped on the side, contains flexible metal wires 10 inside, is made of plastic outside, and is mounted on the pipeline through a suction cup 12 at the bottom. The flexible metal wire 10 is made of iron-nickel alloy material and has magnetism. As shown in fig. 1, the whole scanner is attracted above the flexible metal-containing track 1 by the magnetic wheel set 2, wherein: the scanner bracket 3 is arranged on the magnetic wheel set 2 and can smoothly scan around the pipe wall; the adjustable wheel set 21 is arranged on one side of the scanner bracket 3 and is hinged with the scanner bracket, and the direction of the wheel set can be changed to fit pipelines with different curvatures; the fixed wheel set 22 is fixed on the scanning device bracket and is matched with the scanning device bracket to improve the scanning stability; two ends of the probe bracket 4 are respectively arranged in the mounting groove in the middle of the scanning bracket 3 and can move horizontally along the track direction of the mounting groove in the middle of the scanning bracket 3; the probe clamping rod 41 is arranged in a threaded hole in the probe bracket 4 and is fixed and adjusted in height by virtue of threads; the probe holder 42 is fixed to the probe holding lever 41 by a bolt; an encoder 44, a wedge block and an ultrasonic phased array probe 43 which are used cooperatively are arranged below the probe bracket 42 and can slide along a track of the probe clamp; the operating handles 9 are arranged at two ends of the scanner bracket and push the scanner to slide on the flexible metal-containing track 1. The encoder, the wedge block and the ultrasonic phased array probe are used for acquiring signals and transmitting the signals to the ultrasonic phased array detector.
Based on foretell a manual scanning device that is used for polyethylene pipe welded joint ultrasonic phased array for examine polyethylene pipe hot melt welded joint. The specific method shown in fig. 3 is: the method comprises the steps of cleaning pipe walls on two sides of a polyethylene pipe hot-melting joint, adjusting the space between guide rails by two flexible metal-containing tracks, adsorbing and installing the flexible metal-containing tracks on two sides of the pipe hot-melting welding joint by using suckers, installing a scanner on the tracks to enable a magnetic wheel set to be vertically aligned with the tracks, adjusting the position of a probe by using a probe support and a probe clamping rod to enable the probe to be attached to the pipe, pushing the scanner to slide along the tracks by using a handle, acquiring signals by using an encoder and the probe and transmitting the signals to an ultrasonic phased detector, and presenting a detection result in a C scanning image form by using the ultrasonic phased array detector.

Claims (5)

1. The utility model provides a manual scanning device that is used for polyethylene pipe welded joint ultrasonic phased array which characterized in that: comprises a scanner bracket (3), handles (31) which can be pushed are symmetrically fixed at two ends of the scanner bracket (3), magnetic wheel sets (2) are arranged at four corners of the scanner bracket (3), a probe clamping device (4) is arranged in a central guide rail of the scanner bracket (3), each magnetic wheel set (2) comprises an adjustable wheel set (21) hinged on the scanner bracket (3) and a fixed wheel set (22) fixed on the scanner bracket (3), a probe clamping rod (41) with a thread structure at the lower end and a probe bracket (42) arranged at the lower end of the probe clamping rod (41) are arranged in the center of the probe clamping device (4), a flexible metal-containing guide rail (1) matched with the magnetic wheel set (2) is arranged on the periphery of a polyethylene pipeline, and the flexible metal-containing guide rail (1) keeps jointing and sliding through magnetic attraction, the flexible track is made of flexible rubber and internally provided with flexible metal wires (10), the flexible track is arranged on the circumference of the polyethylene pipeline through a sucker (12) at the bottom, an encoder (44), a water wedge block (43) and an ultrasonic phased array probe are arranged below a probe bracket (42) and can slide along a track of a probe clamp, the encoder, the probe and the wedge block are used for acquiring signals and transmitting the signals to an ultrasonic phased array detector, and a handle on the scanner bracket is pushed to enable the scanner to move and measure on the two flexible metal-containing tracks.
2. The manual scanning device for the ultrasonic phased array of the polyethylene pipeline welding joint according to claim 1, is characterized in that: the flexible metal-containing guide rail (1) is internally provided with a flexible metal wire (10), and the outside of the flexible metal-containing guide rail is wrapped by flexible rubber and is adsorbed and fixed on the wall of the polyethylene pipeline by a sucker (12) at the bottom.
3. The manual scanning device for the ultrasonic phased array of the polyethylene pipeline welding joint according to claim 1, is characterized in that: the adjustable wheel set (21) is hinged with the scanner bracket (3), and the direction of the wheel set can be changed to fit pipelines with different curvatures; the fixed wheel set (22) is fixed on the scanning device support (3) through bolts, and scanning stability is improved.
4. The manual scanning device for the ultrasonic phased array of the polyethylene pipeline welding joint according to claim 1, is characterized in that: the probe clamping device (4) can transversely slide through a built-in guide rail of the scanner bracket (3), the probe clamping rod (41) is provided with an external thread, and the probe bracket (42) can longitudinally move by adjusting the probe clamping rod (41).
5. The manual scanning device for the ultrasonic phased array of the polyethylene pipe welding joint as claimed in claim 4, is characterized in that the top of the probe clamping rod (41) is flat and convenient for hand screwing, and the bottom end of the probe clamping rod is welded with the probe bracket (42).
CN201920776914.5U 2019-05-28 2019-05-28 Manual scanning device for ultrasonic phased array of polyethylene pipeline welded joint Expired - Fee Related CN211577064U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920776914.5U CN211577064U (en) 2019-05-28 2019-05-28 Manual scanning device for ultrasonic phased array of polyethylene pipeline welded joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920776914.5U CN211577064U (en) 2019-05-28 2019-05-28 Manual scanning device for ultrasonic phased array of polyethylene pipeline welded joint

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112461937A (en) * 2020-09-27 2021-03-09 大唐东北电力试验研究院有限公司 Fitting device for assisting in improving ultrasonic detection precision
CN114002322A (en) * 2021-10-29 2022-02-01 无锡华润燃气有限公司 PE pipeline ultrasonic detection device and detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112461937A (en) * 2020-09-27 2021-03-09 大唐东北电力试验研究院有限公司 Fitting device for assisting in improving ultrasonic detection precision
CN112461937B (en) * 2020-09-27 2022-12-27 大唐东北电力试验研究院有限公司 Fitment ware of supplementary ultrasonic detection precision that improves
CN114002322A (en) * 2021-10-29 2022-02-01 无锡华润燃气有限公司 PE pipeline ultrasonic detection device and detection method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200925

Termination date: 20210528

CF01 Termination of patent right due to non-payment of annual fee