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PE pipeline ultrasonic detection device and method

A detection device, ultrasonic technology, applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve the problem of poor signal-to-noise ratio and poor sound permeability of polyethylene materials , Difficult defects, precision and certainty, etc., to achieve the effect of ensuring accuracy, solving quantitative difficulties, and ensuring precision and certainty

Pending Publication Date: 2022-02-01
WUXI CHINA RESOURCES GAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, for the detection method of PE pipe electrofusion welding joints, conventional ultrasound is usually used to conduct traditional array sector scanning. Due to the limitation of polyethylene material's poor sound transmission performance and poor signal-to-noise ratio, conventional ultrasonic detection can only be performed at one time. A single defect is found, and the real position of the defect cannot be displayed by using a simple acoustic display, and it cannot be intuitively displayed whether there are unfavorable conditions such as resistance wire misalignment, holes, cold welding, and over-welding in the welded joint of the pipeline. It is difficult to accurately determine the defect, and in During the sector scanning process, the staff need to observe the detection image, and it is difficult to accurately quantify the location of the defect

Method used

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  • PE pipeline ultrasonic detection device and method
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  • PE pipeline ultrasonic detection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of PE pipe ultrasonic detection device and detection method, such as Figure 1-14 As shown, it includes a bracket 1, a control module 2, a roller 3, a rotating mechanism 4, and a detection mechanism 5. A control module 2 is fixedly installed on the top of the bracket 1. The control module 2 is used to display defects of welded joints. The bottom of the bracket 1 is distributed in four corners. The rolling wheel 3 is rotatably connected in the way, the rotating mechanism 4 is arranged on the bracket 1, and the detecting mechanism 5 is arranged on the rotating mechanism 4, and the detecting mechanism 5 is used for detecting the welded joint of the pipeline.

[0049] The rotating mechanism 4 includes a first arc-shaped plate 41, a first magnetic block 42, a second arc-shaped plate 43, a second magnetic block 44, a first ring gear 45, a second ring gear 46, a first guide ring 47, a second Two guide rings 48, T-shaped slide block 49, bevel gear 411, first slide bar 41...

Embodiment 2

[0055] On the basis of Example 1, such as Figure 11 As shown, it also includes sound-proof cotton 6 , two sound-proof cotton 6 are arranged symmetrically on the sound-proof box 52 , the first generator 54 passes through the sound-proof cotton 6 , and the sound-proof cotton 6 is used for isolating the sound emitted by the ultrasonic wave.

[0056] The sound-insulating cotton 6 can isolate the sound from the ultrasonic wave, preventing the sound from the ultrasonic wave from being loud.

Embodiment 3

[0058] On the basis of Example 1, such as Figure 12-14 As shown, it also includes a pause mechanism 7, the fixed frame 51 is provided with a pause mechanism 7, the pause mechanism 7 is used to cut off the power and stop the rotation detection, the pause mechanism 7 includes a first sliding frame 71, a first magnetic strip 72, a first magnetic strip 72, Two magnetic strips 73, an L-shaped frame 74, a second sliding frame 75 and a third magnetic block 76, the fixed frame 51 is slidably connected with a first sliding frame 71, and the bottom of the first sliding frame 71 is fixedly connected with a first magnetic strip 72 The second magnetic strip 73 is adsorbed on the first magnetic strip 72, the L-shaped frame 74 is symmetrically fixed on the fixed frame 51, and the two L-shaped frames 74 are jointly slidably connected with a second sliding frame 75 for easy pushing. The second sliding frame 75 is rotatably connected to the bevel gear 411 , and the third magnetic block 76 is f...

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Abstract

The invention relates to the field of PE pipeline detection, in particular to a PE pipeline ultrasonic detection device and method. The PE pipeline ultrasonic detection device comprises a support, a control module, rollers, a rotating mechanism and the like, wherein the control module is fixedly installed on the top of the support, the rollers are rotationally connected to the bottom of the support in a four-corner distribution mode, and the rotating mechanism is arranged on the support. Through cooperation of a single crystal normal probe and a phased array probe, the single crystal normal probe and the phased array probe carry out continuous scanning detection on a pipeline welding joint and transmit detection data to the control module through the single crystal receiver so as to obtain a real-time two-dimensional image, and the two-dimensional image can visually display whether the pipeline welding joint has the problems of resistance wire dislocation, holes, cold welding, over-welding, cracks and the like or not.

Description

technical field [0001] The invention relates to the field of PE pipeline detection, in particular to a PE pipeline ultrasonic detection device and detection method. Background technique [0002] With the increasing demand for gas in my country, in order to meet the living and production needs of residents, businesses, and industries, various cities have laid large-scale medium and low pressure gas transmission pipeline networks. The pipes used for urban gas medium pressure pipelines mainly include steel pipes , gray cast iron pipes, nodular cast iron pipes and PE pipes, etc., in order to improve the quality of buried pipeline welds, improve the reliability of safe operation of the pipeline network, and at the same time greatly improve the quality of gas safety management, so that citizens can use more in their work and life Safe, stable and reliable natural gas requires inspection of pipelines. [0003] At present, for the detection method of PE pipe electrofusion welding joi...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/265
CPCG01N29/04G01N29/265G01N2291/0234
Inventor 付晓霞承灿赟潘奕刘翔
Owner WUXI CHINA RESOURCES GAS