焊管2024，Vol.47Issue(6)：17-21,38,6.DOI:10.19291/j.cnki.1001-3938.2024.06.003
油气管道典型渐变缺陷的漏磁特征研究
Research on Magnetic Flux Leakage Characteristics of Typical Gradual Defects in Oil and Gas Pipelines
摘要
Abstract
Based on magnetic flux leakage detection technology,a finite element simulation model of typical gradual defects of oil and gas pipelines is established to analyze the influence of defect type and geometric size on magnetic flux leakage field,further explore the corresponding relationship between defect section shape characteristic parameters and magnetic flux leakage signal,and analyze the change law of magnetic flux leakage signal characteristics of different defects.It is very important to improve the accuracy of defect identification and quantification and enrich the defect sample database.Taking the typical gradient defects of trapezoid and echelon as the research object,the corresponding relationship between characteristic parameters of trapezoid and echelon defects and magnetic leakage signal is further explored through simulation research,which provides a reference for qualitative and quantitative analysis of magnetic flux leakage field of defects.关键词
漏磁信号/典型渐变缺陷/仿真模拟/油气管道Key words
magnetic flux leakage signals/typical gradual defects/simulations/oil and gas pipeline分类
矿业与冶金引用本文复制引用
陈鸵,朱波,路辉,祝卫国..油气管道典型渐变缺陷的漏磁特征研究[J].焊管,2024,47(6):17-21,38,6.基金项目
山东省重点研发计划"安惠万家"燃气安全科技示范工程项目(项目编号2022SFGC0801) （项目编号2022SFGC0801）
国家开发投资集团有限公司科技项目"油气管道内检测系统关键技术及装置研究"(项目编号SDIC2023-06). （项目编号SDIC2023-06）
