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首页 山焦动力车间岗位问答题(The hill power plant post questions)

山焦动力车间岗位问答题(The hill power plant post questions).doc

山焦动力车间岗位问答题(The hill power plan…

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简介:本文档为《山焦动力车间岗位问答题(The hill power plant post questions)doc》,可适用于社会民生领域

山焦动力车间岗位问答题(Thehillpowerplantpostquestions)山焦动力车间岗位问答题(Thehillpowerplantpostquestions)Thefirstchapterofthecommonpartsofoperation,whatisthetemperatureThetemperatureisthathotdegreeorquantityCelsiustemperatureisindicatedby"C"Fahrenheitisindicatedby"F"AbsolutetemperatureConversionformula:F=^CC=FAbsolutetemperature=C,whatisthepressurePressureistheverticalforceThepressurecommonlyused"KgfcmMpa,Pa"Conversion:Kgfcm=Mpa,whatiscalledavacuumWhenthepressureinthecontainerislowerthantheatmosphericpressure,thelowerpartiscalledvacuumpressureConversion:H=hhabsolutepressurevacuumpressure,whatisthespecificvolumeTheobjectvolumeperweight,whatistheheatcapacityObjectunitweight,temperaturerisewasneededtoheat,whatworkIstheworkproductoftheforceandthedistance,whatispowerCompletetheworkperunittimePowerunit:kg*msHPkwConversion:kW=HP=Kg*mseconds,whatisthesaturatedsteamWhenthewatertemperaturereachestheboilingpoint,continueheatingissaturatedwatervaporization,whilethewatertemperaturedoesnotrise,isalwaysequaltothesaturationtemperature,thesaturatedsteamforsteam,whatisthenameofsuperheatedsteamWhenthedrysaturatedsteamheatingatconstantpressure,steamtemperaturewillrisemorethanthesaturationtemperature,overtemperaturevalueiscalledsuperheat,withthesuperheatsteamissuperheatedsteam,theunitofheat:cardkcalJoulekJ,whatiscalledgasificationWhatisthelatentheatofvaporizationObjectsfromtheliquidintoavaporstatecalledvaporizationprocessIsobaricgasificationprocessofsaturatedwaterandsaturatedwaterfromheatingintodrysaturatedsteam,theheatingquantitycalledlatentheatofvaporization,whatisthecondensationofwatervapourFreezewatervaporintoliquidprocesscalledwatervaporcondensationThesecondchapterauxiliarypositionWhatarethecharacteristicparameters,thepumpPowerflowheadspeedWhataretheperformanceparametersofthefanFlowtotalpressure,whatisthewindButthegasflowingthroughthefanimpellernotmentionedtheenergygainaddedvalue,underwhatcircumstances,emergencyshutdownfanIncaseanyofthefollowingcircumstances,emergencystopfan:*fanstrongvibration,impactandfriction*bearingtemperatureabnormallyelevatedexceedtheallowablelimitThemotortemperatureexceedstheallowablelimit**thefireequipmentsafetycrisis,intheoperationofthebearingandthemotortemperaturedoesnotexceedthenumberofdegreesBearingtemperatureofthemotortemperature<degrees<degreesHowmuchisthefan,runninginshockVibrationdoesnotexceedwire,wiremaximum,fanaccidentwhatphenomenon*currentfluctuation*airpressurechange*shockorfrictionabnormalnoise*fanvibration,axialdisplacementistoolarge*bearinghightemperature*jump,howtostartthefanCheckbeforestarting,mustclosethedamperafterthestartcentrifugalfanbeforethestart,toavoidstartingmotoroverloadburned,tobenormalspeed,graduallyopenthedamperThethirdchapterboileroperationpostWhatarethecomponents,analysisofcoalIndustrialanalysisarethoseIngredients:CHOSNW(water)A(ash)Ingredients:waterindustryanalysisofvolatilesulfurfixedcarbonash,whatisthestatusofthefuelcalorificvalueKGthecompletecombustionoffuel,emitallheatminusinfluegascondensationheatofvaporization,whatemergencyshutdown*boilerwatershortage*seriousboilerwithwater*crackingtube,cannotmaintainthenormalwaterlevel*combustionchambercombustionflue,smoketemperature*allgaugedamage,boilerfullofwaterDial*issuedafullwatersignal*thehighwaterlevelwaterlevelindicator*thesuperheatedsteamtemperaturedrop*steamsalt*towaternormallygreaterthanthesteamquantity*seriouswhenfullofwater,watershockoccursinsidethesteampipe,flangesteaming,boilerwatershortage*dialmakesalowwaterlevelsignal*thelowwaterlevelwaterlevelindicator*thesuperheatedsteamrisingsteadily*towaternormallygreaterthanthesteamquantity,howtocallthewaterThewaterlevelistoohighwhenthewaterlevelgauge:openthedrainvalve,watervalveclosed,slowlyclosethedrainvalveAtthistimeifthelevelisslight,fullofwater,otherwiseseriouswithwaterWhenthewaterlevelistoolow:openwatergaugedrainvalve,gasvalveclosed,slowclosingvalvewaterproofAtthistimesuchaswaterlevel,watershortageisslight,otherwiseseriouswatershortage,whatisthephenomenonofsuperheatertube*thewaterflowisgreaterthanthesteamflowabnormally*furnacepressurevariablepositivepressure,severesmokeoutofsteam*formachinecurrentincreasing*smoketemperature*leaksoundnearthesuperheater,whatistheeffectoftemperatureonpressurechangesWhenthepressureincreases,thesuperheatedsteamtemperaturealsoincreasedBecausewhenthepressureincreases,thesaturationtemperatureisincreased,whilethewaterintosteamtoconsumemorecalories,thefuelisconstant,theevaporationcapacityoftheboilertoreducethemoment,namelythroughthesteamsuperheaterquantitylessincreaseinrelativesteamheat,thetemperatureisrising,boilerwatershortagecausedbywhatarethereasons*watervalvefailure,orcompressedairpressureistoolow*operationpersonnelnottostrengthenwatermetermonitoring*watergaugeglasswaterpipeblockingorgasleakagecausedbythewaterlevelindicatingNo*waterpressuredrop*alargenumberofsewageorsewagevalveleakage*furnacetubeburstleakage,whatistheproblemWhatisthetemperatureWhatistherelationshipbetweenthetwoOvertemperatureisinoperation,themetaltemperatureexceedstheratedtemperatureofmetalOvertemperatureisthecauseofoverheating,overheatingistheresultofovertemperature,whatisthewaterhammerUnderthepressureofthepipeline,becausetheliquidvelocitychangessharply,pressureonthecharacteristicsofpipelinecausedbyhammering,whatistheexcessaircoefficientTheactualamountofairandtheoreticalairvolumeratioastheexcessaircoefficientThefourthchapteroxygenpositionsTheconversionof,theabsolutepressureAbsolutepressuregaugepressure=atmosphericpressureAbsolutepressuregaugepressure=atmosphericpressureWhatarethereasonsfortheoxygencontentofdeaeratorwaterriseThewatertemperatureistoolowTheamountofwateristoomuch,thedeaeratoroverloadoperationDeaeratorpressureadjustmentTheexhaustvalveopeningistoosmallWhatistheworkingprincipleof,atmospherictypedeaeratorThedeaeratorheadcomprisesanatomizationzoneandfillerlayertwo,thewatersprayingisrealizedbyspraydeaeratorisrealizedbyfillingdepthInthedeaerator,heatingwater,sodaontheinterfaceofthewatervaporpressurewillincrease,pressurewillreduceothergases,dissolvedgasesallcontinuouslyprecipitatedWhenthewaterisheatedtothesaturationtemperature,watervaporpressuresteamwaterinterfacepressurewillbeclosetothelevelofthewholeThepartialpressureofothergasesisclosetozero,waterisnotintheabilitytodissolveallkindsofgas,gaswillbeseparatedWhatistheworkingprincipleofvacuumdeaerator,Enterthesteamejector,thevacuumdeaerator,watertemperatureenteringthedeaeratorreachessaturationtemperatureinthevacuum,sothatthesteamonthesurfaceofpartialpressuregraduallyincreased,whileothergasesdissolvedinwaterhavebeenprecipitated,therebyreducingtheoxygencontentinthewaterThefifthchapterpostturbine,inwhatcircumstancesprohibitstartingTheoiltemperatureisbelowdegreesorlowerthanthenormalvalueoflubricatingoilThemaininstrumentmalfunctionorcannotbeputintoThemainsecuritydeviceisnotnormalSpeedcontrolvalve,automaticmaingasvalvejamorlaxElectricpumporturningdeviceisnotnormalTurbopumporselfstartingdeviceisnotworkingproperlyThereareobviousmetalfrictionsoundgeneratorVibrationunitofmorethanMMAhostofpoorthermalinsulationTheturbineoilisunqualified,andtheoillevelislowerthan,whatisprohibitedunderthegridThemainvalvecannotmaintaintheautomaticfullloadoperationUnitsuddenloadrejection,speedcontrolsystemcancontroltheturbineincrisisprotectoractionspeedvalueThesecuritycrisisactionspeedvalueunqualifiedExhaustvalveactionvaluefailedOverspeedtest,underwhatcircumstancesEverytimeafteroverhaulStoponceremovedofcrisisprotectorRunningformorethanhoursThreemonthsafterthestartstopOildeterioration,whatcircumstancesdowntimeTheinlettemperatureandpressureisnotqualifiedControlsystemfaultThemaindeparturereceived"notice""dangerous"signalWhatarethecharacteristicsofthe,getridoftheloadTheloadtableiszeroThesteamflowdecreases,thespeedincreasesThepressureandexhaustpressurereducingcontrollevelSetsoundbecomesurgentAdjustthevalve,theoilmovesmallorgansWhatisthereason,theinletpressureincreasesHeatloadImproperadjustmentofboiler,theinletpressuretoreducethesymbolofwhatThebarometerandalarmindicatorUnderthesameloadflowrateincreasesTheelectricalloadincreases,whatistheroleofthesteamturbineturninggearTopreventtheturbineshaftbending,turningdegreessoregularlyWhyshouldthewarmpipe,beforestartingtheturbineBeforethestart,byMpapressureheatingpipe,thepipeslowheating,uniformexpansion,speedoftheturbinearethereThrottlingmethod,nozzleregulatingmethodandbypassadjustmentmethod,coldoilexportshouldbeputinthezerometerlayerandwhyInordertopreventthecoldwaterlossofoilandgas,andoilcoolerthanthetankifthelayoutishigh,everytimeafterstoppingtheoilcooleralltheoilbacktothetank,causingtheoilspill,whatarethesteamturbineprotectiondeviceCrisisprotector,axialdisplacementspeed,magneticcircuitbreaker,automaticmainthrottlevalve,whythesteamturbineexhaustpipeisprovidedwithasafetyvalveBackpressuresteamturbineoperation,oncetheuservolumesuddenlyreduced,theexhaustpressurewillrisesharplyThepressureincreasestoacertainvalue,thesafetyvalvewillbeinstalledintheexhaustpipeontheautomaticseatandbackpressuresteamturbine,thesteamturbinesafetyguaranteeisnotabnormalincreased,steamturbinegoverningsystemTheturbineoutputpowerandloadbalance,whatisthespeedoftheturbineInthefirststageimpulseturbineimpellerbladewithtwocolumns,theimpelleriscalledimpellerspeed,theeffectofthesynchronizerWhentheturbinegeneratorisolatedoperation,inordertoadjustthespeedwhentheunitisconnectedtothepowergrid,inordertoadjusttheload,whatistheroleofturbineoilOneisthebearinglubricationofturbogeneratorandtherotatingpart,andtaketheheattworotatingrefrigerantsteamturbinegoverningsystemandthehydraulicvalve,thesteamturbineshaftsealwhateffectisthereTopreventsteamandtheexhaustendofthelargenumberofhighpressurecylinderalongtheshaftleakage,thereforeinthecylinderatbothendswithhighandlowpressureseal,whichformsasealLabyrinthseal,seal,sealcarbon,theroleofthesecuritycrisisTopreventtheturbinespeedistoohigh,resultinginspeedNote,steamturbineduringstartupprocessSpeedup,theoiltemperatureisnotlowerthandegreesVibrationdoesnotexceedthespecifiedvalueBearingtemperature,oilreturntonormalWhenthespeedtorpm,turbineoilpumpautostartandspeedgovernorThegovernorisfinished,openthemainvalvewithsynchronizerhandwheeladjustmentspeedtorpmPuttheoilcoolerintimeaccordingtothetemperatureofairtemperatureconditionsTheregulationofthenormaloilprotectionTheunitisoperatingnormally,loosenthecapintothepreparationofrodaxialdisplacementprotection,afterwhichthetestspeeddoThemaintestofgasmovementOverspeedtestOverspeedtestactionTheaxialshiftfromactiontestThemagneticcircuittestacceleratorEmergencystop,inwhatcircumstancesSteamturbineinternalviolentvibrationormetalfrictionsoundTheturbinewaterimpactTurbinebearingofftheoilsmokeOilleveldecreasedsharply,unabletorecoverTheoilsystemoffirecouldnotbeextinguishedTheturbinespeedtorpm,theprotectordoesnotmoveLowlubricatingoilpressuretoMpa,cannotmaintainthespeedcontrolsystemTheaxialpressureaslowasMPA,ProtectornoactionGeneratorexcitersmokeorfireThemainsteampressureorpipelinerupture,whatistheturbineidlingtimeSplittingfromthegenerator,automaticmainvalveclosedtothetimeafterfullystaticrotorThesixthchapterofsoftwaterpost,whatistheconcentrationofPPmPPmisamillionthInaverydiluteaqueoussolution,thenumberofMglitresofwatercontainedinthesolution,iePPM=mgL,whatistheconcentrationofPPbPPBisInaverydiluteaqueoussolution,litersofwatersolutioncontainingmicrogram,PPB=mgL,thepumpstartstodiscoverwhichsituationshouldimmediatelystopAfterthestartofasoundinternalrotationslowerAfterthestartofthepressuregaugeiszero,cannotsupplyAfterthestartofvibrationandaxialdisplacementexceedstheallowablevalue

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山焦动力车间岗位问答题(The hill power plant post questions)

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