催化气压机出口冷却器换热管开裂原因分析

*TQ051.5B1001-4837200209-0044-03CauseAnalysisonCrackingofHeatExchangeTubeforOutletCoolerofCatalyticGasCompressorFujianOilRefineryChemicalCo.Ltd.CHENYing-fengAbstractAninternalleakoccurredonthetubebundleofoutletcoolerofcatalyticgascompressor.Throughpressurizedleakdetectionthethroughwallflawwerefoundontheheatexchangetubeoftubebundle.Byphys-icalandchemicalexaminationwithasamplethecauseforcrackgenerationwasanalyzedanditprovidedaba-sisforsafeserviceofcoolertubebundle.Keywordsheatexchangercrackstresscorrosion111/33702φ800×7645mm264m2φ19×2mm304L1Cr18Ni9Ti1.6MPa/0.6MPa+2%H2S/110～120℃/25～30℃3144*3.1GB222GB22311Wt%CSiMnPSCrNiTi0.030.220.680.0280.01018.310.20.0170.0160.330.660.0300.00518.319.60TP304LASMESA213≤0.035≤0.75≤2.00≤0.040≤0.03018.0～20.08.00～13.00ASMESA213TP304LPS3.22+2%H2S23.33.4XX2SCl3.583545+δ672Wt%SClOFeSiMnCrNi3.510.895.8359.451.302.1617.699.175.571.1524.9953.131.771.886.495.023200×4200×4X4.154199118GB15119995.5.25.6.4.15500×6500×4.2+2%H2S7200×4.30.2～10×10-618-8Cr-Ni60×10-651GB1511999GB151199922002-05-09362000!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!64CPVTVol19.No92002