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1、运行中管道的定点测厚技术（Fixedpointthicknessmeasuringtechniqueforpipelineinoperation）MonitoringandtestingofpetrochemicalcorrosionandprotectionCorrosion&ProtectioninPetrochemiealIndustry2003,20(2),'53'FixedpointthicknessmeasuringtechniqueforpipelineinoperationHuYang,BiYanjin,LiuKai(QiluPetrochemicalIndustr
2、iesCoShengliRefinery,Shandong,Zibo255434)Abstract:sitethicknessmeasurementisoneofthemainmeanstomonitorpipelinecorrosioninrefinery.ForA,theclassBpipelinerequiresquarterlyorsemiannualFixedpointthicknessmeasurementandfullthicknessmeasurementduringshutdown.NothicknessmeasurementisrequiredforCandDp
3、ipelines.Inordertomakethethicknessdatamanagementmorestandardized,ThepipelinethicknessdatamanagementsoftwarehasbeendevelopedinShengliRefinery,whichhasthefunctionsofdatamaintenance,query,reportoutputandcorrosionratealarm.ThearticleisdefiniteEconomicbenefitsofmeasuringthicknessandpointsforattenti
4、ontothicknessmeasurementarealsodiscussed.Keywords:pipelinecorrosion;sitemeasurement;thicknessmeasurementCLCnumber:TE980.2,documentidentificationcode:B,articlenumber:1007-015X(2003)02-0053,O3QiluPetrochemicalIndustriesCoShengliRefineryselfprocessinghighsulfurcrudeoiltoThepipelinecorrosionleakag
5、eaccidentoccurredmanytimes.HeavyoilhydrogenationunitTheE1703outletpipeoftheaircoolerismadeofcarbonsteelandthepipeismadeofcarbonsteel1999L2monthsforuse,corrosionperforationbeganinJuly2000,ByMay2001,theoverhaullasted1andahalfyearsPerforationleaksmorethanl0times,seriouslyendangeringthenormalprodu
6、ctionandoperationoftheequipmentPersonalsafetyofpersonnel.HighpressureaircoolerEl03-/jnhydrogenunitTheexportpipelineburstinJuly2001duetocorrosionthinningLeakageofhydrogen,andcausefireaccident,resultingindeviceshutdownfor1weeks,Directeconomiclossofmillionsofyuan.ThisiscausedbypipecorrosionAccide
7、ntsalsooccurfrequentlyinotherrefineries.Tothisend,thePetrochemicalCorporationIn2001,partoftheequipmentforprocessinghighsulfurcrudeoilwasputintouseEquipmentandpipingmaterialselectionguidelines"onenhancingRefineryCorrosionRegulationsforth
