使用网状阳极的储罐阴极保护系统中若干问题的讨论

,(,221008):,:;:TG174.41:A:10052748X(2002)0520208203DISCUSSIONONSOMEASPECTSOFCATHODICPROTECTIONSYSTEMAPPLYINGGRIDANODEGUOMeng2fei,CHENXue2jiang(ThePipelineScienceResearchInstituteofSINOPEC,PipelineStorage&TransportationCo.,Xuzhou221008,China)Abstract:SomeaspectsinvolvedinthedesignandoperationofcathodicprotectionsystemapplyingMMO(MixedMetalOxide)gridanodeforabovegroundstoragetankarediscussed.Therecommendedpracticeorsolutionispresented.Keywords:Gridanode;Cathodicprotection1,,[1],,,22.1,,,,:,:20012042125m3(1)(1),111/-V(vs.Cu/CuSO4)11.1521.1431.12(2)(2)280223520025CORROSION&PROTECTIONVol.23No.5May2002©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(vs.Cu/CuSO4)11.1721.1431.13,,10m3,,2.22.2.1,,,,,(),,2.2.2IRIR(1)3IR433IR1234/m171420/-V0.560.570.560.54/-V1.121.101.081.16IR/V0.250.220.200.23/-V0.870.880.880.9334IR(;100mV)(2)5,IR6,44IR123/m11530/-V0.560.570.56/-V1.431.511.46IR/V0.560.630.58/-V0.870.880.883,,IR0.200125V,0.200125V4,,IR,,0.560.63V,(,IR),,,902:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(;200mV)[4],,,IR,IR,2.3,,2m33,5m34,10m362.4(1),,,,(2),,,,(3),2.5,,API6511020mA/m2;[3],10mA/m2;[4]510mA/m2:,1mA/m2[2]2.3516mA/m2,,2.6VREC=1.2IRT[5](1)VREC;I;RTRT=RN+RW+RC(2)RN;RW;RCRC=RS/A(3)RS;A;RC,RC=0,,5m31A2.7(1),200mV,(2),Cu/CuSO4;Cu/CuSO4(3),012:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[6],,(4)Cu/CuSO4,,(5),(6),,:[1].(MMO)[J].,2000,21(11):495497.[2]MohammedAli,.Titaniumribbonanodegridtypeca2thodicprotectionsystemforabovegroundstoragetankbottomswithdoublecontainment2acasestudy[A].Cor2rosion99[C].Houston:NACE,1999.289.[3]BS7361-1991,[S].[4]SY/T0088-95[S].[5]U.S.ArmyCorpsofEngineers,Cathodicprotectionsys2temusingceramicanodes[Z].TechnicalLetterNo.111029210.1996.[6]LouisKoszewski,.Retrofittingasphaltstoragetankswithanimprovedcathodicprotectiionsystem[A].Corro2sion99[C].Houston:NACE,1999.265.(207)3316Ti(SEM)[2][3,4],,,Cu23,,,,,4,:(1),80%118,,,,(2):SAF2205SAF2507316Ti310S,310S316TiSAF2205SAF25072(3)310S316Ti,,,310S316Ti:[1].[J].,1999,20(1):2729.[2].[M].:,1984.[3]TakizawaKikuo,NakavamaYoshinori,KurokawaKeiko,etal.CorrosionbehavioroftypeSUS304stain2lesssteelscontainingtininorganicacidsolutions[J].CorrosionEngineering,1990,39(1):39.[4]OteroE,PardoA,UtrillaMV.CorrosionbehaviourofAISI304Land316Lstainlesssteelspreparedbypowdermetallurgyinthepresenceoforganicaicds[J].CorrosionScience,1997,39(3):453463.112:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.