长距离输油管道阴极保护死区的腐蚀控制

(,221008):,,,,:;;;:TE988.2;TE980.41:B:10052748X(2003)0420172203CORROSIONCONTROLFORTHEDEADAREAOFCATHODICPROTECTIONOFLONGDISTANCEOILPIPELINEWANGKe2zhong(SINOPECPipelineStorageandTransportCo.,Xuzhou221008,China)Keywords:Oilpipeline;Cathodicprotection,Deadarea,Corrosioncontrol1,,,,,,,,,,13,,,70()()(),80,90,,,,,:2002211202;:2002212210,,(),,,,,,22.1,:(1),;,(2),,()(3)(4),()(5)-0.8527124420034CORROSION&PROTECTIONVol.24No.4April2003-0.95V(CuSO4,)-1.0-1.3V,(6),2.2,,,,,,,,,,,-0.85V,,,,,,FeFe2++2eO2+2H2O+4e4OH-,Fe2+Fe3+(Fe3O4),,2H2O+2eH2+2OH-,,,,,,,,,[2,3],,,,,,,,,,,,,,,,,3,,,,,,,,,,,-0.85-1.0V,-0.85-0.95V,-1.00V,,,,,,,,(1),,,,,,,,1978,,,(2),45,,,(3)-0.85V-0.95V,,,,-1.0V,371:,,(-1.5V),(4),,,,,,,,,,-1.00V(),,,,,(5),,,,,,,,4,,,,,,:[1],.[J].,1999,18(9):3031.[2],.[M].:,1998.3947.[3].:[M].:,1993.886900.(171)(3),(4)(5)(6),,:[1].[M].:,1995.[2].[M].:,2001.[3],,.[J].,2002,23(8):371372.(178),,,3,,5,,1P2,1P3,471: