管道漏磁检测技术及应用

20092PipelineTechniqueandEquipment2009No2:2008-05-06:2008-10-21武万辉,郭勇,王同德,杨寒(,065000):根据漏磁检测技术在国内管道内检测领域的应用实际,介绍了漏磁检测系统的3个组成部分:漏磁检测器地面标记系统和数据分析系统,主要介绍了漏磁检测器的结构及工作原理根据电磁感应定律及霍尔效应原理,分析了线圈式探头和霍尔元件探头拾取的缺陷漏磁场的信号特征介绍了检测数据的处理方法及数据分析系统对于含缺陷管道的完整性评价:漏磁;地面标记系统;数据分析系统:TG115.28:B:1004-9614(2009)02-0033-02MagneticFluxLeakageOn-lineInspectioinTechniqueandItsApplicationtoPipelinesWUWan-hu,iGUOYong,WANGTong-de,YANGHan(ChinaPetroleumPipelineInspectionTechnologyCompanyLtd.,Langfang065000,China)Abstract:Accordingtotheapplicationofmagneticfluxleakagetechniqueinthefieldofon-lineinspectionoftheinlandpipelines,theMFLsystemisdescribedinthreeaspects:theMFLpig,anabovegroundmarker(AGM)systemandadataanalysissystem.ThestructureoftheMFLpiganditsworkingprincipleareintroduced.ThemaganeticmfluxleakagesignalcharacterofthecoilsensorandofHallcomponentsensorisanalyzedinlightoftheelectromagneticinductionlawandHalleffectprinciple.Com-binedwithapplicationoftheproject,thispapersummarizestheprocessingmethodofinspectiondataandtheintegrityassessmentofpipelineswithdefectsinthedataanalysissystem.Keywords:magneticfluxleakage;abovegroundmarker(AGM)system;dataanalysissystem0,,,,111,1,(ID/OD)()(HARNESS)112[1],,,,,,,,,,,,34PipelineTechniqueandEquipmentMar200922121漏磁信号,,u:u=-nddt(1):;n;-U(2):U=RhJB(2):Rh;J;B,,,3(a)3(c),,3(b)3(d),,,,,,40mW,,,,110%,,,,,,,122区分内外缺陷ID/OD,,,,ID/OD,,,,123里程传感器,,2[3],,,,,,,(下转第57页)第2期王闯等:短信电位遥测系统在输油管道上的应用57(9),,3(1),(2),50,;(3)4,,,,,,,,(上接第34页),,3,,,,,,,,[4-5],,,31,(MAOP),(ERF),32,:(1),,,,;(2),;(3);(4),,,,33,,,,,4,;,(GIS)GPS,,,,,:[1],,..,2002,24(3):100-102.[2]..,2008,35(2):39-41.[3],,,..,2008,35(2):81-82.[4],,,..,2003,22(5):1-6.[5]..,2003,22(6):1-12.:(1975),,