电磁超声和漏磁管道内检测技术对比分析  

Comparison and Analysis of Electromagnetic Acoustic Transducer and Magnetic Flux Leakage in Pipelines Internal Inspection Technology

作　　者：王晓司 王勇[1] 杨静[1] 王晓霖[1] Wang Xiaosi;Wang Yong;Yang Jing;Wang Xiaolin(Dalian Research Institute of Petroleum and Petrochemicals,Sinopec,Dalian,116049,China)

机构地区：[1]中国石化大连石油化工研究院,辽宁大连116045

出　　处：《石油化工自动化》2018年第5期55-57,共3页Automation in Petro-chemical Industry

基　　金：国家重点研发计划专项"石化装置静设备质量性能检测评价与控制技术研究";2017YFF0210404

摘　　要：管道内检测是管道完整性管理的重要环节,也是发现管道本体缺陷的主要手段。详细介绍了漏磁检测、电磁超声检测的原理和适用性。对某成品油管道内检测数据的分析和开挖验证结果表明:漏磁检测对缺陷的定量测量误差较大,难以检测出裂纹类缺陷;电磁超声检测可以检测管道的外部缺陷以及防腐层剥离,尤其对裂纹类缺陷检测精度高。Pipeline internal inspection is an important link of pipeline integrity management.It R also the main means to find the pipeline body defect.The principle and applicability of magnetic flux leakage and electromagnetic acoustic transducer are mtroduced in detail.The analysis and excavation of test data verification result m one finished product pipeline shows the quantitative measurement error of magnetic flux leakage s large.It is difficult to detect crack defects.Electromagnetic acoustic transducer can detect the external defects of the pipeline and the peel of the anti-corrosion layer.The detection accuracy for the defect kind of crack is especially high.

关 键 词：管道内检测技术 漏磁检测 电磁超声检测 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]