LMcourse燃气透平PPT课件.ppt

2020 1 27 可编辑 EnergyLearningCenter 2020 1 27 可编辑 ModelNumberDesignationSinceAprilof1983allLM2500engineshavebeenidentifiedbyanumberingsystemconsistingofaprefix enginefamilydesignation typecode andconfigurationcode EnginesmanufacturedbeforeApril1983retaintheoldnumberingsystemanditisnotanticipatedthattheywillbeupdatedwiththenewmodelnumbers Example 7LM2500 PE MGW7LM Prefix2500 EnginefamilydesignationPE TypecodeMGW Configurationcode EnergyLearningCenter 2020 1 27 可编辑 Theprefix 7LM isaGEcompanydesignationforamechanical aeroderivative non aircraft gasturbineorgasgenerator The 7 isthedepartmentnumberfortheMarine IndustrialsectionoftheGEAircraftEngineCompany L standsforlandand M forMarine TheEnginefamilydesignationisdeterminedbytakingthenominalbrakehorsepowerratinganddividingitby10 TheLM2500hadaninitialdesignratingof25 000bhp dividingthisby10givesanengine familydesignationof2500 Thetypecodeisalwayscomprisedoftwoletters Ifthefirstletterisa G itwouldmeanthattheengineisagasgeneratoronly itwasnotintendedtobecoupledtoaGEpowerturbine Theaboveexampleindicatesthattheunitisagasturbine byvirtueofthe P Thesecondletterinthetypecodeindicatesthedesigndifferencesoftheunit EnergyLearningCenter 2020 1 27 可编辑 InthecaseoftheLM2500 thesecondletterrepresentsamajordesigndifferenceofthesameproduct Theletter K wouldindicateaSingleAnnualCombustor SAC engine Theletter R wouldrefertoaDryLowEmission DLE engine ForaLM2500 gasgeneratorenginebuiltforaHighSpeedPowerTurbine HSPT thetypecodewouldbe GV foraSACengineand GYforaDLEengine Theconfigurationcodeidentifiesmajorphysicalcharacteristicsoftheengineintermsofutilization Codesareassignedasfollows HPTBladeCoatingsM Marinized CODEPorPlatinumAluminide N Non MarinizedFuelSystemG NaturalGasL LiquidFuelD DualFuel bothtypes EnergyLearningCenter 2020 1 27 可编辑 NOxSuppressionA SteamNOxwithsteampowerenhancementB WaterNOxwithsteampowerenhancementC SteampowerenhancementonlyD DrylowEmissionS SteamNOxonlyW WaterNOxonlyX NOxSuppressedwithwaterorsteam oldconvention Accessoriesareconsideredtobeboltoncomponentswhichcouldbeaddedordeletedfromtheengineanytime Becauseofthistheyarenotincludedinthemodeldesignationoftheengine Accessoriesareidentifiedbykitidentificationnumbersgivenonmodellistsorpurchasedocuments Thefollowingtableillustratesthedifferencebetweenthevariousgasturbinemodeldesignationsandprovidesacorrelationbetweentheoldandnewnumberingsystems 2020 1 27 可编辑 2020 1 27 可编辑 ABriefHistoryTheLM2500isanaero derivativegasturbine AtGEthismeansthatthebasicdesignhasprovenitselfsuccessfulinitiallyasanaircraftengine withpossiblyseveralyearsandandtheexperienceofin the fieldproductionenginestodrawfrom TheLM2500isthemostsuccessfulaero derivativeinitsfield But itwasnotthefirst oreveninthefirstgeneration 1959TheGEaero derivativeenginemakesitsdebutwhenprovenaircraftenginedesignsareadaptedforuseintwoexperimentalhydrofoils Awidevarietyofapplicationsinmarine industrial electricutilityandotherfieldssoonfollow Thefollowingarethepioneeringderivativesandtheiruses 2020 1 27 可编辑 LM100Derivation T58 HelicopterTurboshaftengineApplications V 169LocomotiveHSDenison HydrofoilHSVictoria HydrofoilUSSPresidentVanBurenHamiltonClassUSCGCutter100tonorehaulingtrucksBellSK 5AirCushionVehicle LM1500Derivation J79 AirplaneTurbojetengineApplications PortableaircraftcatapultUSSPlainview HydrofoilHSDenison HydrofoilPG84ClassGunboat 2020 1 27 可编辑 1961WiththesupportoftheU S Navy alongrangeprogramwasinitiatedtosolvethespecificproblemsencounteredwithoperatinginamarineenvironment Thismarinizationprogramincludedthelaboratorydevelopmentandtestingofnewmaterials protectivecoatingsandcontroldevicesthatwouldoperateproperlyatsea Through outthe1960 sthistechnologywasprovenatseaandinindustry 1965TheU S AirForceawardedGeneralElectricacontracttodevelopanenginefortheirnewsupersizedairtransport theLockheedC 5Galaxy Thisengine designatedtheTF39 provedsosuccessfulthatacommercialversioncalledtheCF6 6wasdevelopedalmostimmediately 2020 1 27 可编辑 1968ThebasicdesignoftheTF39 nowinitssecondgeneration wasusedinconjunctionwiththemarinizationprogramtocreatetheLM2500 1969ThefirstproductionLM2500enginereplacedoneoftwodevelopmentenginesinstalledaboardtheGTSAdm WilliamW Callahan arollon rolloff Ro Ro cargoshipwithaGWTof24 000tons andacruisingspeedof26knots 1971ThefirstenginesweredeliveredtoindustrialsystemssuppliersDresser RandandCooperEnergySystemsfornaturalgascompressionapplications Dresser RandColumbiaGulfTransmissionCo Delhi Louisiana USAGreatLakesTransmissionCo Wakefield Michigan USANova AirdaireS S CanadaNova Clearwater CanadaWestcoastEnergy Inc McLeodLake VBC Canada 2020 1 27 可编辑 CooperEnergySystemsGreatLakesTransmissionCo Duluth Minnesota USATheLM2500hasbeeninproductionforover30years withabasicdesignthatisnowover35yearsold Theenginealthoughoriginallyspecifiedanddesignedformarineuse hasfoundindustrialapplicationsonoilplatforms naturalgascompressionstations powergenerationandcogenerationplants andpipelinepumpingstations Todaytheengineisavailableinseveraldifferentconfigurations Eitherasagasgenerator orgasturbine Fueledbygaseousorliquidfuels orboth Andmayhaveitspoweroutputaugmentedbytheinjectionofsteamthatwasproducedbytheheatfromitsownexhaustgas Thismaterialwillbediscussedingreaterdetaillater 2020 1 27 可编辑 2020 1 27 可编辑 G4GGtestedinEvendale1 06 GTw 6packtested6 06 Therewillbe24EuropeanFrigateswithG4 s 1pership 2020 1 27 可编辑 Genealogy DerivedfromProvenTechnology 2020 1 27 可编辑 GasTurbineModules TheG4willbeeasiertoexchangewithaG3thantomodifyaG3intoaG4 2020 1 27 可编辑 GLOSSARYAABS Absoluteac alternatingcurrentACCEL AccelerationAc dc alternatingcurrenttodirectcurrentACT ActuatorAGB AccessoryGearboxALF AftLookingforwardamp amplifier ampere oramperageAOA AngleofAttackAR AsRequired Assy AssemblyAve Avenue atAlarms predeterminedparametricvaluesatwhichanautomaticwarningisexecutedBButt FlangesthatlieflatagainsteachotherB E Base Enclosurebhp brakehorsepowerBSI BorescopeInspectionBtu BritishthermalunitBlade Rotatingairfoil 2020 1 27 可编辑 C C DegreesCentigrade Celsius cc cubiccentimeterCCW CounterclockwiseCDP CompressorDischargePressureCFF CompressorFrontFrameChan ChannelCheck InspectionoffCIP CompressorInlet PT2 TotalPressure CIT T2 CompressorInletTemperaturecm centimeterCMD CommandCo CompanyCO2 CarbonDioxideCont ContinuedCorp CorporationCRF CompressorRearFrameCW Clockwise 2020 1 27 可编辑 Ddc directcurrentdistal viewinglensinlinelenswithobjecttobeviewedDOD DomesticObjectDamageDLE DryLowEmissionsDVM DigitalVoltmeterdwg drawingEEEA ElectronicEnclosureAssembly F F DegreeFahrenheitfig figureFIR FullIndicatedRunoutflex flexibleFMP FuelManifoldPressureFOD ForeignObjectDamage ThatdamagewhichoccurstogasturbineinternalairflowpathsurfacesFrame Establishestherotationalaxis housesbearingsumps 2020 1 27 可编辑 Ft foot 0 3048meter orfeetFWD ForwardGgal gallon 3 785liters GE GeneralElectricCompanyGG GasGeneratorgpm gallonsperminuteGreen Repairweldonaweld previously fullyheattreatedpart notsubjectedtoheattreatmentbeforewelding Nore quirementfor solutioning re solutioning stress reliving oragingofrepairweld GT GasTurbineHHg MercuryH2O WaterHPT HighPressureTurbinehr hourHSCS HighSpeedCouplingShaftHz Hertz cyclespersecond HPTN HighPressureTurbineNozzle vanes 2020 1 27 可编辑 Iid insidediameterIGB inletGearboxIGV InletGuideVanein inchinsp inspectionI O Input OutputIP IdlePositionKkg kilogramkgcm kilogramcentimeterkgm kilogrammeterkg sqcm kilogrampersquarecentimeter kPa kilopascalkw kilowattLLorl Literlb poundLbft poundfootLbin poundinchLH LeftHandLS CA LubeStorageandConditioningAssemblyLSP LubeSupplyPressure 2020 1 27 可编辑 Mm meterma milliamperemax maximumMCU ManualControlUnitMFC MainFuelControlMfg Manufacturermils 0 001incmin minimumorminuteml millilitermmmillimetermv millivoltMw MegawattMWorMeg NNGG N1 GasGeneratorSpeedNo NumberNom NominalNozzle TurbineStatorsNPT N2 PowerTurbineSpeedOOAT OutsideAirTemperatureOD OutsideDiameterOGV OutletGuideVaneOS OverspeedOT Overtorque 2020 1 27 可编辑 Ppara paragraphPLA PowerLeverAnglePN s PartNumber s pot potentiometerpph poundsperhourPPM PartsperMillionpress pressurepsi poundspersquareinchpressurepsia poundspersquareinchabsolutepressure Psid poundspersquare P inchdifferentialpressurepsig poundspersquareinchgagepressurePS3 CompressorDischargePressure StaticPT PowerTurbinePT2 CompressorInlet CIP TotalPressurePT5 4 PowerTurbineInletPT4 8TotalPressure 2020 1 27 可编辑 QQAD QuickAccessoryDisconnectQt quartQty quantityRRabbet OverlappingflangeorjointRef ReferenceReq RequiredRpm revolutionsperminuteReq d RequiredRTD ResistanceTemperatureDetectorRunon ThetorquerequiredtoTorquebringafastenertoasealedposition SSC SignalConditionerSCP Ship sControlPanelsec secondSFC SpecificFuelConsumption lbs bhp hr SG SpecificGravitySIG SignalSN SerialNumberSST SignalShankTurbineBladeStall Adisruptionofthenormallysmoothairflowthroughthegasturbine 2020 1 27 可编辑 StdDay StandardDay59deg29 92 hg 0 hum SealevelStator CasingwhichCasehousesinternallocatedvanesStation LocationofapointonanimaginarylinethroughaturbineenginefromfronttorearidentifyingspecificpartsorsectionsinArabicnumeralsSys System TTabs smallprotrusions forattachmentoralignment Tach tachometerTangs alignmenttabs fitintoslotsorsockets TBD tobedeterminedT C ThermocoupleTemp TemperatureTGB TransferGearboxTM TorqueMotorTMF TurbineMidFrameTNH HighSpeedTurbineSpeed 2020 1 27 可编辑 TNL LowSpeedTurbineSpeedTST TwinShankTurbineBladeT2 CompressorInlet CIT TemperatureT5 4 4 8 PowerTurbineInletT54 48TemperatureUUS UnitedStatesUSA UnitedStatesofAmericaVV VoltVA Voltamps Vac volts alternatingcurrentVane stationaryairfoilsVdc volts directcurrentVSV VariableStatorVaneWW WattWP WorkPackageXX ByXDCR Transducer 2020 1 27 可编辑 2020 1 27 可编辑 AllreferencestolocationorpositionontheLM2500arebasedontheassumptionthattheindividualisstandingbehindtheengineandlookingforward Thisistrueinallcasesunlessstatedotherwise Unlessotherwisestated allviewsinthistrainingmanualarefromtheleftsideoftheengine withtheintakeontheobserversleftandtheexhaustontheright AllGEenginesrotateCWaftlookingforward ALF Generatorsareviewedforwardlookingaft FLA 2020 1 27 可编辑 2020 1 27 可编辑 RubberGasket KeepCleanRoomClean P P0vs P1 1 H20 Alarm2 H20 S D Inlethasminimumof200lbs secairflow 2020 1 27 可编辑 InletComponentsTheinletcomponentsdirectairintotheinletofthegasgeneratortoprovideforsmooth non turbulentairflowintothecompressor Thesecomponentsconsistof 1 Inletduct2 Centerbody 2020 1 27 可编辑 InletDuctTheinletductisconstructedofaluminum AMS4026 andshapedlikeabellmouth Theinletductispaintedwhite andmustbemaintainedinthepaintedcondition CenterbodyThecenterbodyisaflowdividerboltedtothefrontofthegasgenerator Thecenterbodyissometimesknownasthebulletnose andismadeofagraphitereinforcedfiberglasscomposite unpainted 2020 1 27 可编辑 AirflowsIntroductionPrimaryandsecondaryairflowsaresuppliedtothegasturbinethroughtheinlet Primaryairissuppliedtotheenclosureinletplenumarea andflowsthroughthegasturbine Secondaryairissuppliedtotheenclosuregasturbineenvironment andprovidesacoolingflowaroundthegasturbine Mostprimaryairwithintheengineisusedtosupportthegasturbinepowercycle inlet compression ignition expansionandexhaust Thisairflowisreferredtoasthe maingasflow anditsflowpathistheMainGasPath Someoftheprimaryairisextractedfromthemaingaspathatthe9thand13thstagesofcompression andfromthecompressordischargechambertosupplyvariouscoolingandpressurizationfunctionsessentialtotheoperationoftheengine Thisreducesthetotalamountofairavailabletothepowercycle andforthisreason thesearereferredtoas parasiticairflows 2020 1 27 可编辑 Customerbleedairrequirementsforoff enginefunctions arealsosuppliedbyparasiticairflowfromthecompressordischargechamber MainGasPathBetweenthegasturbineinletandthecompressordischarge theairflowductformedbytheinletcomponents CFF andcompressoriscontinuouslyconvergent Toproduceairflowbetweenthesetwopoints workisdoneontheairbytherotatingcompressorblades Fromthecompressordischargechamber throughthecombustor HPT TMF LPT TRF andgasturbineexhausttheairflowductisalmostcontinuouslydiffusive Airflowbetweenthesetwopointsisproducedbytheinternalenergystoredintheairduringitstransitionthroughthecompressor andbyenergyaddedtotheairbycombustion Duringitstransitionthroughthecompressor ambientpressurepresentatthegasturbineinletisincreasedbyan23 1ratio 2020 1 27 可编辑 Atthecompressordischarge thecombustordiffusercowlformsanairflowdividerthatroutesapproximately20 ofthehighpressureairintothecombustordomearea Theremaining80 continuestodiffuseintothecompressordischargechamberaroundthecombustor Asthe20 flowsuppliedtothecombustordomeareapassesthroughtheswirlercups itismixedwithfuel andignitesuponreachingthecombustionchamber Theresultingcombustionreactionreleasestremendousamountsofheat andcausesviolentandrapidexpansionoftheignitedgases Largemassesofhighpressuredilutionairenteringthecombustionchamberthroughholesintheinnerandouterlinerscentertheignitionflamewithinthechamber andcreateaninstantcoolingeffectastheyareexpandedbythesuperheatedcombustiongases 2020 1 27 可编辑 Smallfilmcoolingholesdrilledintheleadingedgeoftheinnerandouterlinerrolledringsegmentsprovideathinlayerofcoolcompressordischargeairbetweenlinersandthehotcombustiongases SAConly Theconstantinflowofhighpressureairthroughignition dilution andfilmcoolingchannelsforcesthehotcombustiongasestoexpandaft wardthroughtheturbines Mostoftheenergycontainedintheexpandingcombustion gasesisdissipatedagainsttheHPTrotorbladestodrivethecompressor TheexpandinggasesdischargedfromtheHPTstillcontainconsiderableamountsofenergy andcontinuetoexpandthroughtheLPT AfterpassingthroughtheLPTallusableenergyisconsumed andthedepletedgasesareexpelledfromtheenginethroughtheexhaustcomponents 2020 1 27 可编辑 MAINGASPATH 2020 1 27 可编辑 AerodynamicStationsVariousinstrumentationpointsalongthemaingaspathareidentifiedwith aerodynamicstationnumbers formonitoringtemperatureandpressurecharacteristicsofthemaingasflow Thesystemusedtoidentifytheseinstrumentationpointsismainlyintendedforusebyvariousengineeringfunctionsinthedesignphaseandproductiontestingoftheengine However someofterminologyhasspreadintothefield Actualaerodynamicstationnumbersrangefrom0to9 butonlymilitaryaircraftapplicationsrequirethismanynumberstodescribethemaingaspath LM2500 applicationsrequireonlythreenumbers Station2 Compressorinlet Station3 CompressorDischarge Station5 4 4 8 PowerTurbineInlet Combiningthemonitoredparameterswiththestationnumbersproducesthe 2020 1 27 可编辑 Followingterminology T2 CompressorInletTemperatureorCIT Pt2 CompressorInletTotalPressureorCDP Ps3 CompressorDischargeStaticPressureofCDP T3CompressorDischargeTemperatureT5 4 4 8 PowerTurbineInletTemperature Pt5 4 4 8 PowerTurbineInletTotalPressure 2020 1 27 可编辑 ComponentHeritage 2020 1 27 可编辑 Comparison MaximizesDesignCommonalitywithTechnologyAdvancements 13 8 longer G4hasapprox10 morepowerthanG3 2020 1 27 可编辑 FramesTheLM2500has4frames 1 CompressorFrontFrame CFF 2 CompressorRearFrame CRF 3 TurbineMidFrame TMF 4 TurbineRearFrame TRF Framesarerigid non moving enginestructuralelements Theprimarypurposeofaframeistoprovidesupport 2020 1 27 可编辑 Eachoftheseframesisanassemblyconsistingofacentralhubconnectedtoanoutercasingthroughtheuseofhollowstruts Thesestrutsprovideaccessforcooling lubrication andpressurization CompressorFrontFrameTheCFFsupportstheforwardstubshaftofthecompressorrotorthroughtheuseofarollerbearing whichissituatedinthehuboftheframe thewallsofwhichformthe A bearingsump TheCFFalsosupportstheforward portionofthecompressorstator inletduct centerbody andthefrontofthegasturbine Theouterportionoftheframeissupportedby5equallyspacedstrutsthatradiateaxiallyfromthehub Thestrutsarehollowtoprovideservicestoandfromtheengine andareshapedlikeairfoilstoprovideaturbulentfreeairflowpathforcompressorinletair 2020 1 27 可编辑 3oilsupply 3RBearing A 2020 1 27 可编辑 CompressorSectionThecompressorisa17stage highpressureratio axialflowdesign Air takeninthroughthecompressorfrontframe isforcedbyrotatingairfoilscalledbladestopassintoasuccessivelysmallervolume Passingthroughthe17thandfinalstageresultsinacompressionratioofapproximately23 1 Theprimarypurposeofthecompressoristoprovidehighvolumesofcompressedairto supportcombustion howeversomeairisextractedforcoolingpurposesandcustomeruse Themajorcomponentsofthecompressorare 1 CompressorFrontFrame CFF 2 CompressorRotor3 CompressorStator4 CompressorRearFrame CRF 2020 1 27 可编辑 Completerotorweighs1609lbs 2020 1 27 可编辑 CompressorRotorTheHPCRisaspool diskstructure ItissupportedattheforwardendbytheNo 3rollerbearing whichishousedintheCFF A sump TheaftendoftherotorissupportedbytheNo 4ballandrollerbearings whicharehousedintheCRF B sump Therearesixmajorstructuralelementsandfiveboltedjointsasfollows Stage0bliskwithwidechord shroudlessblade Stage1disk Stage2diskwithairductinterface Stages3 9spool Stages10 13spoolwithintegralaftshaft Overhungstages14 16spoolAllrotorjointsareboltedandinterferingrabbetsareusedinallflangejointsforgoodpositioningofpartsandrotorstability Aslipfit singlewalldesignedairductthatissupportedbytheshaftsandastage2disk routespressurizationairaftthroughthecenteroftherotorforpressurizationoftheB sumpseals 2020 1 27 可编辑 Useofspoolsreducesthenumberofjointsandmakesitpossibleforseveralstagesofbladestobecarriedonasinglepieceofrotorstructure Stages1and2diskshaveaseriesofsinglebladeaxialdovetails whileeachofstages3through16haveonecircumferentialdovetailgrooveinwhichbladesareretained DisksDisksaremajorstructuralelementsprovidingstrengthandrigiditytotheassembly andcontainonlyasinglestageofblades SpoolsSpoolsspanthedistancebetweendisks oraresuspendedfromdisks Aspoolwillcontainmorethan1stageofbladesandallowsforweightandmaterialreduction BladesBladesareairfoilsretainedbyaxialdovetailgroovesinstages1and2 andbycircumferentialdovetailgrooves instages3through16 2020 1 27 可编辑 BliskBladediskcombinationcomesasoneunit Thebladesarenotremovable 2020 1 27 可编辑 Muffspline Stage0blisk Stage1retainers Stage2retainers 1stageofCompression 1stageofrotation 1stageofstator 3Rbearing 2020 1 27 可编辑 HPCompressor midspandeleted G4hasmoreopenIGV swhichresultedinredesignedairfoils G4HPCisdifferentbetween