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[1]莫丽,雍浩,李长俊,等.油气管道组合缺陷漏磁检测信号数值模拟研究*[J].中国安全生产科学技术,2024,20(1):5-10.[doi:10.11731/j.issn.1673-193x.2024.01.001]
　MO Li,YONG Hao,LI Changjun,et al.Numerical simulation study on magnetic flux leakage testing signals of combined defects in oil and gas pipelines[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(1):5-10.[doi:10.11731/j.issn.1673-193x.2024.01.001]
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油气管道组合缺陷漏磁检测信号数值模拟研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年1期
页码:
5-10
栏目:
学术论著
出版日期:
2024-01-31

文章信息/Info

Title:
Numerical simulation study on magnetic flux leakage testing signals of combined defects in oil and gas pipelines
文章编号:
1673-193X(2024)-01-0005-06
作者:
莫丽; 雍浩; 李长俊; 陈超
（1.西南石油大学 机电工程学院，四川 成都 610500；
2.西南石油大学 石油与天然气工程学院，四川 成都 610500；
3.四川省燃气安全与高效利用工程技术研究中心，四川 成都 610500；
4.中国安全生产科学研究院，北京 100012）
Author(s):
MO Li;  YONG Hao;  LI Changjun;  CHEN Chao
(1.School of Mechanical Engineering,Southwest Petroleum University,Chengdu Sichuan 610500,China;
2.School of Petroleum Engineering,Southwest Petroleum University,Chengdu Sichuan 610500,China;
3.Sichan Engineering Research Center for Gas Safety and High-Efficiency Utilization,Southwest Petroleum University,Chengdu Sichuan 610500,China;
4.China Academy of Safety Science and Technology,Beijing 100012,China)
关键词:
安全工程; 漏磁检测; 组合缺陷; 有限元; 干扰距离
Keywords:
safety engineering;  magnetic flux leakage testing;  combined defects;  finite element;  interference distance
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2024.01.001
文献标志码:
A
摘要:
为解决管道组合缺陷之间漏磁检测信号互相干扰，难以识别的问题，采用有限元方法建立仿真模型，研究管道内外、不同形状缺陷以及内外组合缺陷邻近情况下的漏磁场检测信号规律。研究结果表明：管道缺陷的漏磁检测信号在其轴向和径向分量上均存在显著差异；组合缺陷的检测信号存在相互干扰且具有一定的叠加性；当缺陷深度约为管壁厚的10%、25%、40%时，轴向信号干扰距离分别约为缺陷长度的1倍、2倍、3倍，径向信号干扰距离均约为长度的4倍，组合缺陷径向信号的互相干扰程度大于轴向信号，缺陷深度对轴向信号的影响大于径向信号。研究结果可为油气管道组合缺陷的识别提供理论依据。
Abstract:
To deal with the problem of mutual interference and difficulty in identifying the magnetic flux leakage testing signals between the combined defects of pipeline,a simulation model was established by using the finite element method,and the laws of magnetic flux leakage testing signals inside and outside the pipeline of the defects with different shapes and the adjacent internal and external combined defects were studied.The results show that there are significant differences in the axial and radial components of magnetic flux leakage testing signals of pipeline defects.The testing signals of the combined defects have mutual interference and certain superposition.When the defect depth is about 10%,25%,and 40% of the pipeline wall thickness,the interference distance of axial signals is about 1,2,and 3 times as the defect length,respectively,and the interference distance of radial signals is about 4 times as the length.The mutual interference degree of combined defect radial signals is greater than that of axial signals,and the influence of defect depth on axial signals is greater than that of radial signals.The research results can provide a theoretical basis for identifying the combined defects in oil and gas pipelines.

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备注/Memo

备注/Memo:
收稿日期： 2023-08-09
* 基金项目： 四川省重点研发项目（2023YFS0412）
作者简介： 莫丽，硕士，教授，主要研究方向为油气装备和流体机械。
通信作者： 陈超，博士，研究员，主要研究方向为油气与新能源储运安全。
更新日期/Last Update: 2024-02-19