基于相控阵超声的电力线夹检测技术研究

材料导报

2022, Vol. 36

Issue (Z1): 22030019-6

高分子与聚合物基复合材料

基于相控阵超声的电力线夹检测技术研究

余超¹, 季昌国¹, 张鹏鲲¹, 王凯², 王静³, 刘畅³

1 华北电力科学研究院有限责任公司,北京 100045
2 国网山东省电力公司,济南 250000
3 北京华科同和科技有限公司,北京 100045

Research on Power Clamp Detection Technology Based on Phased Array Ultrasound

YU Chao¹, JI Changguo¹, ZHANG Pengkun¹, WANG Kai², WANG Jing³, LIU Chang³

1 North China Electric Power Research Institute Co., Ltd., Beijing 100045, China
2 State Grid Shandong Electric Power Company, Jinan 250000, China
3 Beijing Huake Tonghe Technology Co., Ltd., Beijing 100045, China

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摘要采用相控阵超声检测技术(PAUT)对电力线夹的压接质量进行检测。本工作首先采用CIVA软件对压接质量不同的电力线夹试样进行了相控阵超声仿真研究。仿真结果表明:随着压入深度减小,反射面的宽度增大、间距减小,反射信号逐渐增强。若有一根导线未压入,漏压的反射幅值相当于规则反射体中的大平底回波声压,欠压缺陷的回波规律类似于规则反射体中的长横孔回波声压规律。此外,通过相控阵超声检测实验得到了正常线夹和带缺陷线夹的相控阵超声典型图谱,表明相控阵超声检测技术可直观检测出线夹漏压、欠压等缺陷。线夹解剖后的截面结构与仿真模拟、相控阵检测图谱信号特征相吻合,进一步验证了相控阵超声检测压接质量的有效性和准确性,为其大规模的工程应用提供了一定参考。

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关键词: 电力线夹 CIVA仿真相控阵超声检测压接质量

Abstract: The crimping quality of the power cable clamp was tested by using phased array ultrasonic testing(PAUT). In this work, CIVA software is used to carry out phased array ultrasonic simulation research on power clip samples with different crimping quality. The simulation results show that as the indentation depth decreases, the width of the reflecting surface increases, the spacing decreases, and the reflected signal increases gradually. If a wire is not pressed in, the reflection amplitude of the leakage pressure is equivalent to the sound pressure of the large flat bottom echo in the regular reflector, and the echo law of the undervoltage defect is similar to the echo sound pressure law of the long transverse hole in the regular reflector. In addition, the phased array ultrasonic typical patterns of normal wire clips and defective wire clips were obtained through the PAUT experiment, indicating that the PAUT can intuitively detect the leakage pressure and undervoltage of the wire clips. The anatomical cross-sectional structure of the wire clip is consistent with the signal characteristics of the simulation and phased array detection map, which further verifies the validity and accuracy of the phased array detection of crimping quality, and provides a certain reference value for its large-scale engineering applications.

Key words: power clamp CIVA simulation phased array ultrasonic testing crimping quality

出版日期: 2022-06-05 发布日期: 2022-06-08

ZTFLH:

TG115.28

基金资助: 华北电力科学研究院有限责任公司自有资金科技项目(KJZ2020076)

通讯作者: 18092863911@163.com

作者简介: 余超,2015年8月于西安交通大学大学获得硕士学位。现为华北电力科学研究院金属研究所工程师。目前主要研究领域为电厂和电网金属监督、检验及无损检测技术的研发与应用工作。发表论文8篇,专著1部,修编行业标准2个,授权专利5项。

引用本文:

余超, 季昌国, 张鹏鲲, 王凯, 王静, 刘畅. 基于相控阵超声的电力线夹检测技术研究[J]. 材料导报, 2022, 36(Z1): 22030019-6.
YU Chao, JI Changguo, ZHANG Pengkun, WANG Kai, WANG Jing, LIU Chang. Research on Power Clamp Detection Technology Based on Phased Array Ultrasound. Materials Reports, 2022, 36(Z1): 22030019-6.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2022/V36/IZ1/22030019

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