基于磁致伸缩效应低频导波在高温工业管道腐蚀检测的应用
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摘要
低频导波检测技术在针对工业管道腐蚀检测方面有着良好的应用前景;研究中分析了3种不同类型低频导波检测技术的各自特点,介绍了导波检测的基本原理,采用美国西南研究院MsSR3030R磁致伸缩导波检测系统,对不同环境条件下的高温工业管道进行了低频超声导波检测,结果表明:与传统压电式低频超声导波检测方法不同,磁致伸缩效应导波检测技术可以有效检测出高温工业管道腐蚀缺陷,并通过观察特征信号表可实现对缺陷的准确定位;同时,磁致伸缩效应超声导波检测也存在一定范围的盲区。
For testing the corrosion of industrial pipeline,the Conventional technical ways such as Radiographic,Ultrasonic testing methods are inefficient,and need to stop the machine.The emerging Pulse eddy current testing technology can realize on-line detection without stopping,but this technology can only point by point testing,and the test results are easily disturbed.Low frequency guided wave testing technology has a good application prospect in corrosion detection of industrial pipelines.This research analyzes the characteristics of 3 different types of low frequency guided wave testing techniques,and introduce that basic principle of guide wave testing.The Southwest Research Institute MsSR3030R magnetostrictive guided wave dectection system was used to carry out low frequency ultrasonic guided wave testing on the high temperature industrial pipeline in different environmental conditions.The results show that unlike conventional piezoelectric low-frequency ultrasonic wave testing methods,Magnetostriction guided wave testing technology can effectively detect corrosion defects in high temperature industrial pipelines and realize the accurate position of the defect can be observed through the characteristic signal table.At the same time,the magnetostrictive ultrasonic wave testing has a certain range of blind areas.
For testing the corrosion of industrial pipeline,the Conventional technical ways such as Radiographic,Ultrasonic testing methods are inefficient,and need to stop the machine.The emerging Pulse eddy current testing technology can realize on-line detection without stopping,but this technology can only point by point testing,and the test results are easily disturbed.Low frequency guided wave testing technology has a good application prospect in corrosion detection of industrial pipelines.This research analyzes the characteristics of 3 different types of low frequency guided wave testing techniques,and introduce that basic principle of guide wave testing.The Southwest Research Institute MsSR3030R magnetostrictive guided wave dectection system was used to carry out low frequency ultrasonic guided wave testing on the high temperature industrial pipeline in different environmental conditions.The results show that unlike conventional piezoelectric low-frequency ultrasonic wave testing methods,Magnetostriction guided wave testing technology can effectively detect corrosion defects in high temperature industrial pipelines and realize the accurate position of the defect can be observed through the characteristic signal table.At the same time,the magnetostrictive ultrasonic wave testing has a certain range of blind areas.
引文
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[2]齐水宝,高会栋,徐延稳,等.电磁超声高温测厚原理及应用案例[J].无损检测.2013,35(12):53-57.
[3]陆阳,李永健,徐晓甲,等.基于脉冲涡流对包覆层管道检测技术应用[J].辽宁化工.2017,46(8):812-814.
[4]CAWLEY P,LOWE M,ALLEYNE D,et al.Practical long range guided wave testing:Applications to Pipes and rail[J].Materials Evaluation,2003,61(1):66-74.
[5]薛胜龙.复杂管道条件下带包覆层铁磁性管道腐蚀脉冲涡流检测[D].南昌:南昌航空大学,2016.
[6]蒋林林,杨涛,周兵,等.站场埋地管道超声导波检测技术应用[J].无损检测.2017,39(6):36-39.
[7]Alleyne D N,Lank A M,Mudge P J,et al.Guided wave inspection of chemical plant pipework[J].SPIE,1996,2947(1):177-188.
[8]Wilcox P,Lowe M,Cawley P.An EMAT Array for the Rapid Inspection of Large Structures Using Guided Waves[J].AIP,2003,657(1):814-821.
[9]Choi M S,Kim S Y,Kwun H.An equivalent circuit model of magnetostrictive transducers for guided wave applications[J].Journal of the Korean Physical Society,2005,47(3):454-462.
[10]龙盛蓉.管道磁致伸缩导波检测机理及传播特性研究[D].南昌:南昌大学,2014.
[11]WANG C H,CHANG F K.Scattering of plate waves by a cylindrical inhomogeneity[J].Journal of Sound and Vibration,2005,282(1/2):429-451.
[12]张路根,胡智,刘伟成,等.管道的超声导波检测试验[J].无损检测.2010,32(6):420-423.
[13]周正干,冯海伟.超声导波检测技术的进展[J].无损检测.2006,28(2):57-63.
[14]刘胜,骆苏军.基于超声导波技术的长输管道无损检测[J].无损检测,2015,37(6):40-42.
[15]邹宁波,谌海云,刘全利,等.基于T(0,1)模态超声导波的输气管道腐蚀检测[J].无损检测,2013,35(9):19-22,68.