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py2006(04):20050620:(1980),,,,T911,2,1(1.,710032;2.,712085)[]T91:,;,;[]T91;;;;[]TG13[]A[]10023364(2006)040054051%CMnPSSiCrMoVNbNAlNi0.0930.450.0150.0100.418.880.920.190.100.230.0900.570.0140.0050.308.310.910.240.23ASTMA213T91[3]0.070.120.300.600.200.010.200.508.009.500.751.050.180.250.060.10.030.070.040.40,,,[1,2]T91(9Cr1MoVNb),,10hT91,T91T91,T91,T911A300MW1025t/h,d54mm9mm17.2MPa540,75787h700mm900mm41B300MW1069t/h,d63mm4mm3761015;541,6734h,4(1)11,,OLYMPUSGX71JEM200CX(TEM),JEM2010TEMEDS22.1(1)1(a)(b)T911,,©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(04)pz12,;,,(2)2375787h6374h2,,3,,32.2TEM(1)TEM(4),,,,,,,(2)56TEM5,©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.{2006(04)4TEM5TEM,,,,,6,,,,,6TEM2.3(EDS)77,M23C6,M23C6,Laves,M23C6M23C648%Fe39%Cr4%Mo8%C0.5%V0.6%Mn,M23C6MFeCrMo,T91,Laves,Laves44%Fe7%Cr44%Mo4%Si1%Mn3%Cu,Laves54%Fe10%Cr33%Mo3%©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(04)p|Si1%Mn,,LavesFeCrMo,72.4B6374h1,,TEM,TEM(89),,,,,TEM89TEM3(1)T91T9VNb,1,CrMo,,VNb,VNb,CrSi(2)T9110401080750780,[3]T91,,,Laves[4](3),(12Cr1MoV10CrMo91015CrMo),T91©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.}2006(04),,,;(),(8)(4)TEMT91,,T91,(56),,(5),,,,,,,,,,,[57](6)75787h6374h,,,623,606,475787h6374hT91,,T91,TEMT91;,[][1].[M].,2003.[2],,,.[M].,1986.[3]K.Haarmann,J.C.Vailant,B.Vandenberghe,etal.TheBookT91/P91[M].2002.[4]A.Srang,V.Vodarek.ModelingandExperimentalVeri2ficationofMinorPhaseCompositionChangesinCreepResistant12CrMoVNbSteels[C].Parson2000AdvancedMaterialsfor21thCenturyTurbinesandPowerPlant.5722589.[5]130000hT91()[C].,2000.[6]B.H.Sencer,F.A.Garner,D.S.Gellesetal.Micro2structuralevolutioninmodified9Cr21Moferritic/marten2siticsteelirradiatedwithmixedhigh2energyprotonandneutronspectraatlowtemperatures[J].JournalofNu2clearMaterials3072311(2002)2662271.[7]A.Orlov,J.BurÍk,K.Kucharovetal.Microstructur2aldevelopmentduringhightemperaturecreepof9%Crsteel[J].MaterialsScienceandEngineering,1998,A245:39248.(53),,,,3:(1),,,(750kg);(2),95%,,,,[][1].[J].,1990,(6):40243.[2].[J].,1992,10(5):41244.©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:300MWsteamturbine;slidingpressureoperation;optimalinitialpressure;specificheatconsumptionCAUSESANALYSISOFBIGTEMPERATUREDIFFERENCEBTWEENCASINGSOFUNITNO.9INSHAOGUANPOWERPLANTANDTREATMENTTHEREOFZHENGCaiping,HEJiankang,SONGWenxi(44)Abstract:Theexistingproblems,suchasbigtemperaturedifferencebetweenupperandlowercasings,aswellasrotorbendingetc.,duringprocessofstartupandshutdownofsteamturbineno.9inShaoguanPowerPlanthavebeendescribed.Throughdiagnostictest,theaffectingfactorsproducedbythefaultshavebeenanalysed,andcorrespondingmeasuresbeingtaken.Finally,thehiddendangerpuzzlingsafetyinstartupandshutdownofthesaidunithasbeenremoved.Keywords:200MWunit;casings;temperaturedifference;rotorbendingBRIEFPRESENTATIONOFSOESYSTEMANDFAULTCLEARANCETHEREOFLAIHuaxin,WANGDong(46)Abstract:Thehardwarestructure,function,andsoftwareconfigurationforsequenceofevents(SOE)systemhavebeenpresented,thefaultsoccurredinoperationofSOEsystembeinganalysedandcleared,ensuringtheSOEsystemtobeinnormaloperation.Keywords:distributedcontrolsystem;SOE;configuration;gasturbinepowerplantDESIGNOFCONTROLSYSTEMSFOR440t/hCFBBOILERSINYUELIANPOWERPLANTLIJin(48)Abstract:Combiningwithpracticalprojectexampleofapplyingdistributedcontrolsystem(DCS)forcirculatingfluidizedbed(CFB)boilersof135MWunitsinYuelianPowerPlant,thedesignofcontrolsystemsforfuel,airflowrate,andbedpressureoftheCFBboilershasbeendescribedindetail.Keywords:CFBboiler;DCS;analogvariablecontrol;fuelandairflowratecontrol;bedpressurecontrolTHEDEVELOPMENTOFANEQUIPMENTUSEDTOFISHINGTHEGLASSMICROBALLOONSAUTOMATICALLYINTHESYS2TEMOFCONCENTRATEDDUSTABATEMENTINPOWERPLANTLiLei,SuMeng(52)Abstract:Glassmicroballoonisabyproductproducedinthecombustionprocessofasteampowerplant.Itisawonderfulindustrialrawmaterialwhichhasahighapplicationvalue.Recently,concentrateddustabatementtechniquehasbeenadoptedtoreplacethetraditiontechnique.Theashslurrywillbefirstlydeliveredintotheenrichedpool,andbestirredbythethickener,thentheglassmicroballoonswillseparatewiththeashesandfloatonsurface.Thispaperdescribesanautomaticallyfishingglassmicroballoonsequipment.Itadoptsdoublechaintransmission,scrapingfi