超临界锅炉末级过热器T23管性能状态评估及监督管理

44120131BOILERTECHNOLoGYV0144No1Jan2013T231122111(12154332215004)630MwT2340000hT2315497mT233000040000h20T23T23TK225B16724763(2013)010063040630MW20062011640000hT23T23[1]T23T23T231T23DLT4382009T23221T23qb381636mm(1)T231mm22(2)GB53102008ASMESA213T2354056022012031220121117(1975)6444(1)GB53i02008(3)(4)GB53102008ASMESA2132T23T23535450225520435245T23381636mm570480245GB5310200807Cr2MoW2VNbB51040022ASMESA213T2351040020540540aE560aC560C540540560aciT2334560C2R10100l00010000100000H2T23560y247575006178x(1)099823560104h560000(21693MPa23T23(34)15497m4T2333140000hT23mm1T236532ASMESA213DLT4382009T2340000hT23GB53102008ASMESA2135408T233334h356010105h10105h56010105h51601C1468MPaGermanversionENl021622002+A22007SeamlesssteeltubesforpressurepurposesTechnicaldeliveryconditionsPart2Nonalloyandalloysteeltubeswithspecifiedelevatedtemperatureproperties7CrWVMoNb96(T23)56010104h170MPa10105h134MPaGB5310200810105h122MPaT2339779h56010104hENl021622002+A22007[3]1510105hGB5310--2008ENl021622002+A2200733T23368T23(58)1DLT4382009nj4l!44T23200m500pmLaborelec[2]T_i(2)Tzmmthnn72928119b18743(2)T2356029105h54010105h50m20T234T23T23T23T23(1)(2)50000h(3)(4)T23T23T235T2340104hT23T2310104hT23T23(71)171VibrationReasonAnalysisandVibrationReductionMethodsofPipingSysteminThermalPowerPlantZHAOXinghailZHAISon91PENGLongfeilXINGJingweilXINGuohua2(1SchoolofEnergyandPowerEngineeringNortheastDianliUniversityJilin132012China2JilinVocationalCollegeofIndustryandTechnologyJilin132013China)AbstractTheimproperinstallationofsupporthangersandtheunreasonablearrangementoflocalpipeinpowerplantwillcausethevibrationinpipingoperationfrequentlywhichbringgreathiddendangertothesafeoperationofthepipingandrelatedequipmentsfurthermoreinfluencingthesafetyandreliabilityofthepowerplantToensurethesafeoperationofpowerplantandeliminatethehiddendangeritisnecessarytOmakethoroughanalysisandresearchontheformationmechanismforthepipingvibrationInthispaperthereasonsofcausingthesteamwaterpipevibrationwereanalyzedandtheexcitingforcewasregardedasthemainfactorsofthepipingvibrationTheotherreasonsofvibrationinthepipingwereanalyzedandthesuggestionsandmeasurestOeliminateordecreasethepipingvibrationweregivenTheinvestigationofthispapercanprovidetechnicalsupportforvibrationtreatmentworkofsteamwaterpipeinpowerplantKeywordssteamwaterpipevibrationstressanalysissafetyexcitingforce(66)[13T23[J3200945(10)E231[J]200925(2)41--42[33[M]1979PerformanceStateEvaluationandofSupercriticalBoilerT23SupervisionManagementSuperheaterTubeXIAOGuozhenlYINChen-wulZHUPin92WANGGangan92ZHENCanghailYANGHongquanlYINJinyul(1ShenhuaGuohuaTaicangPowerGenerationCoLtdTaicang215433China2SuzhouNuclearPowerResearchInstituteCoLtdSuzhou215004China)AbstractTheperformancestatusofT23furnacetubeinsuperheaterwasevaluatedthroughasetoftestofmacrocheckMechanicaltestmicrostructureexaminationEquivalenttemperaturecalculationandhightemperatureenduringstrengthtestTheresultshowthatServiceto40000hoursofT23pipestrengthdecreasedobviouslyorganizationagingfasterwallthicknessof154umthicknessattachedtOtheoxidationlayerleadtoT23furnacetubeequivalentmetaltemperatureby3000040000hours20riseduringservicebutstillkeephighternperaturelastingstrengthhighlevelsThemainsafetyoperationriskisanalysisedbasingonthetestresultsofthefurnacepipeputsforwardT23furnacetubemetalsupervisionmeasurestOavoideffectivelyexplosionaccidentscausedbyoxideskinblockingoffthepipeKeywordsT23tubeoxidationlayerequivalenttemperaturelastingstrengthmetalsupervision