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基于力 - 磁耦合模型的埋地管道腐蚀检测研究

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  • 西南石油大学机电工程学院
刘艳军(1978-),博士,讲师,研究方向为管道无损检测、油气储运,电话:13693498308,E - mail:liuyanjun98@126.com

收稿日期: 2021-12-19

  修回日期: 2022-01-19

  录用日期: 2022-02-28

  网络出版日期: 2024-01-09

Research on Buried Pipeline Corrosion Detection Based on Force - Magnetic Coupling Model

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  • School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China

Received date: 2021-12-19

  Revised date: 2022-01-19

  Accepted date: 2022-02-28

  Online published: 2024-01-09

摘要

为能够实现埋地管道的非开挖状态的检测,给弱磁检测提供理论依据,利用ANSYS有限元软件研究了腐蚀管道在内压及地磁场作用下空间磁信号的分布规律,分析了不同提离高度对于管道缺陷磁信号的影响,以及不同缺陷深度下的磁信号分布。同时,利用自制的管道弱磁检测仪器对管道进行现场检测,将检测到的磁信号与模拟结果进行对比分析,验证了两者的一致性。利用仿真分析得到的关于腐蚀位置判断的磁信号特征对检测到的磁信号数据进行分析,并对缺陷位置进行开挖验证,结果表明:利用这一波形特征可以实现对腐蚀缺陷的识别,能够实现对埋地铁磁管道的非接触式检测。

本文引用格式

徐鸿飞, 刘艳军, 王鲜 . 基于力 - 磁耦合模型的埋地管道腐蚀检测研究[J]. 材料保护, 2022 , 55(6) : 69 -74 . DOI: 10.16577/j.issn.1001-1560.2022.0156

Abstract

In order to realize the detection of buried pipes without excavation and provide a theoretical basis for the weak magnetic inspection, the spatial magnetic signal distribution of corroded pipelines under the influences of internal pressure and geomagnetic field was studied using ANSYS finite element software. The effects of varing uplifting heights on the magnetic signal of pipeline defects and the distribution of magnetic signal under different defect depths were analyzed. Furthermore, the pipeline was detected on site by a self - made pipeline weak - magnetic detection instrument, and the detected magnetic signal was compared with the simulated result to verify the consistency. Based on the magnetic signal characteristics regarding corrosion position judgment obtained by simulation analysis, the detected magnetic signal data was analyzed, and the defect location was verified by excavation. Results showed that the recognition of corrosion defects and non-contact detection of buried magnetic pipelines could be realized by using this waveform feature.
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