政府采购合同模板下载.docx

政府采购合同模板下载.docx

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政府采购合同模板下载

政府采购合同模板下载

政府采购合同模板下载

there?

Afterignition,combustionshouldfocusitsattentiononwhat?

Reducingboilerhotlossmeasures?

DC-whatarethemaincharacteristicsoftheboiler?

BoilersteamafterBaoBiwenhow?

whenshutdowntocontrolsteamdrumwalltemperaturedifference?

Fromarunstandpoint,whatarethemainmeasurestoreducecoalconsumptionforpowersupply?

Talkabouthowtocontrolthewaterlevel?

Generatoraftersplitting,6KVwhytopromptlyexitthestandbypowerswitch?

Whythecurrenttransformersecondarysideintheoperationarenotallowedtoopen?

Whysynchronousgeneratorexcitationcircuitofthedegaussingswitchcanbechangedintoalivelybreaker?

Generatorstep-upprocess,whytherotorandstatorcurrentstomonitor?

Whyarerotoronepointgroundproneto2ndafterground?

Try380Vdiscussedfollowingthegroundingofauxiliarypowersystem,wiringforthree-phasefive-limbterminalofPTsecondaryvoltagechange?

Generatorincompletephaseoperationprincipleiswhat?

Yn,d11（Y0/-11）connectionofgenerator-transformersystems,generatoropen-phaserunninganyhelp?

Whytoinstall100%statorgroundingprotectionforlargegenerator?

Whydoesnotallowrunningsecondaryshortcircuit?

Generatorexcitation,excited,whatistheoftheoverexcitationlimit?

Generatorlossofexcitationintherunning,whatistheimpactonthesystemandthegeneratoritself?

Anti-cuozhongonthepreventionofexcitationsystemofgeneratorcausedbyfaultwhatdamage?

trydiscussingwhatarethemeasuresofimprovingpowersystemdynamicstability?

Whatisaswitchingoperationoftheelectricalequipment?

maincontentswitchingoperationofpowerplantsandpowersystemsarethere?

Trydiscussingmalignantelectricmisoperation,whichmisusepersonal,mostoftheequipment?

Switchservicepowerfastcuttingdeviceinseveralways?

inthealternatetotheState,thestandbypowerswitchrefusedtodealwith?

Trydiscussingswitchingoperationsshouldfocusonpreventingmisoperationaccident?

Newoperationoraftermajorrepairoftransformerswhytest?

TrydiscussingstepsmeasuredwithaMeggerinsulationresistanceofelectricalequipment?

LumethodisusedtofindDCgroundingconsiderationarewhat?

whentherearetwopointgroundingwiththepolarityshouldbe...1.600MWsupercriticalsupplementaryquestions,blankminidiskcanbedividedintomanualandtwooilturbine;oilturbinediscwheelcar,theturningspeedoftherotorcanbecontrolledataround80~120RPM（highspeed）,anditisfulfilledbycontrollingaccesstotheoil-pressureturbineoilturningon/offandspeedlevel.Medium-speedCoalmillexplosion-proofsteamfromawindroom,_,_separatorcasingintothegroundtopreventthemillexplosionintheprocessofstartingandstopping.Millloadistoacceptcurrentsignaltothecoalcontrolproportionalpressurereliefvalvesize,changeofhydraulicaccumulatorsandhydrauliccylinders,toachieveloadchanges.SealedAirforcoalpulverizerdrive,Rodbearings,roller.Coldwindofauserwithasealedairblowerair,sealedair,groundcoaltoacoldwind.Turbinesealingoilprimaryoilsourceisair-sidesealoilpump,thefirstalternateoilsources（mainlyalternativeoilsource）isthemainoilpumpofturbine.Whentheprimaryoilsourcefailure,thefirstsparesourceautomaticputintooperation.SecondalternateoilsourcesprimaryalternatesupplyACelectricsealingoilpumponthefueltank,whentheturbinespeedislessthan2/3ratedspeedorfirstalternatesourcefailureoccurs,thesecondsparesourceautomaticswitch.ThirdalternativeoilsourceisprovidedbyDCsealingoilpump.Mainfueltankexhaustthrottleshouldbelocated2steelclosingdooroperationhandwheellockingisnotallowedandobviouswarningsignsshouldbehung.Steamengineroomcaughtfire,whenitthreatenedtotankorfuelsystem,shallimmediatelydestroythevacuumemergencystop,andturnonthetankaccidentputthethrottle,speedandcontrolonoilshouldbeappropriate,toensurethattherotorslubricantsarenotinterruptedbeforestatic.Shaftsealoverflowoverflowto#8thelowpressureundernormalconditions,when#8thelowpressureoverflowwhentheoutagetothecondenser.Slidingpressureoperationofdeaeratormayavoiddeaeratorsteamsourceforthrottlinglosses.Normaloperationofsteamturbinesteamdistributionmodeforsteamdistributionnozzle.Aftertheturbinesstopped,iftherotorcannotrotateforashorttime,rotor___underbending,highestin_____highsatthispointrotorshouldbereset,closethehydrophobic____cylinder,keeping__upanddowntemperaturedifferencebetweencylinder_monitorrotor____deflection,whenafteryouverifythattherotoris,andthenmanuallyturning180o.Whenturningthemotorovercurrentorrotordiscdoesn'tmove,donotforciblybarring_____,butcannotturn__forced_orturningthecranebroke.Stopturning_8__hourslater,tostopthelubeoilsystem.Condensatepumpsduetotransportationofsaturatedwater,thepumpismostpronetocavitation_____,thereforeiscomposedof__inducer__,andatthetimeofinstallationensurethepumpinlethassomehighly______intrusion,anddesign_exportrecycled__tubes,alsoinordertosolvethisproblem.Whenthecondenserwhenthewaterlevelistoolow_settingup__pumpsareturnedon,intotheairtopreventthepumpdesign_____sealwater,preventthepumpoutputisnotnormal....Threadedtubewithinawaterwall,deteriorationofheattransferdoesnotoccur.Xturbinecoldstarts,heattransferofsteamtothecylinderwallisbasedoncondensationheattransferandconvectiveheattransferintwowaysatthesametime.（X）thefurnacehigherexcessaircoefficient,smallerchemicalheatlossduetoincompletecombustion.（√）Boilerofsodaexpansionisinevitable.√Start-upincorporations,boiler-DCoperation,adjustmentofmainsteamtemperaturecontrolinacoal-waterratiobetweenpoints.√Asingleswirlburnerburningadjacentburnersarenotrequiredtosupport.Swirlburnerswithdifferentrotationdirectionwillaffecttheboilersteamtemperatureandloadparameters.Xboilersteamflowisdividedwithdoublebuilt-instartupseparatordesignedforcommunityprocess.√Duringcombustionofpulverizedcoalinboiler,oxygencontent,thelowertheNOxisproducedmore.√Whenthegas-waterratioimbalances,once-throughboilersteamtemperatureateachpointinthetripwillchange,andclosertothepoptourentrance,inertiaandhysteresistemperaturechangeissmaller.√Indisguiseneartheheattransfercoefficientofsteamincreasestoamaximumatfirstandthenquicklylower.√Controlofstart-upseparatoroutletsteamtemperature,thatcontrolstheboilerheatingandevaporation,thermalheatdistribution.（X）asthedirectcurrentrequirementsforoperationoftheboilerfeedwaterqualitywasmuchhigherthanthatofdrumboiler,inonce-throughboilerstart-upprocess,thereforethereisnoneedforfurnacewashingofSilicon.（×）UPtheboilerissubcriticalandsupercriticalparameterscanbeusedinthefurnace,workingoneortwotimes,connectingmultiplehybrid,hasahighermassflow,suitableforlargesupercriticalpressureonce-throughboiler.（X）this-isthebiggestcharacteristicofevaporatingheatingsurfaceofboilertubeswererepeatedlyincreasedtheverticaltubescreen,usingmixedheaderandnotinthemiddleofheateddroptubeinseriestoeachother.DuetothetemperaturedifferencebetweendifferentPanelnexttothepipe,thermalstress,membranewaterwallofseamdamage.Check（√）thespiralwaterwallinadditiontoimportandexportislocatedoutsidethebox,nomixingheaderinbetween,duetoitsarrangementoffurnacesizedoesnotaffect,evenheatheatlowerrorswillnotresultintheunevendistributionofsteam-watermixture.（X）supercriticalandsubcriticalcase,whenthewaterisheatedtotheappropriatephasetransitiontemperatureunderpressure,allvaporizeintosteam.（X）directcurrentboiler,waterintosteamsteam-watertwo-phaseregiondoesnotexist.Theexperiencedheatingandhotwaterintosuperheatedsteamintwostages.（√）Phasetransitionundersupercriticalpressure,whenallwatervaporizedintosteamtemperature,alsoknownasthecriticaltemperature.Differentpressurephasetransitiontemperature.（X）intheareanearthephasetransitionpoint,thespecificvolumeofrefrigeranttorisesharply,andthegreatestspecificheatatconstantpressure.（√）Undersupercriticalpressures,thespecificheatofwaterincreaseswithtemperature,thespecificheatofsteamdecreaseswithincreasingtemperature.（√）Underinsubcriticalonce-throughboilerevaporatingheatingsurfaceofmultiplevaluesthatappearunsteadyflow,themainreasonisalowenthalpyofevaporatingheatingsurfaceinletwater.Sointhelow-loadoperationmustrestrictentrylowenthalpyofwater.（X）theflowofrefrigeraevaporatingheatingsurfaceofambiguityexistonlyinspiralwallverticatubecoilsdnotexist.√Evaporation...educationandtraining.（3）technologycanguideoperatorsworkonthebusiness,readytosolveengineeringproblems.（4）thetextclearlytechnicalproblemswiththecardsonthetableandretaintheoriginalinformationtothepersonsconcerned,goodtechnicalapprovalandvisainatimelymanner.4,dataadministratorresponsibilities

（1）isresponsibleforalltheprojectfiles,datacollection,production,binding,collating,storage（hand）andsoon.

（2）assistconstructionproject"fuck"andothertechnicalandengineeringquality,safety,andeducation.（3）tohelpthestaffdisclosureofproductiontechnology,securitytechnology,andcollectingkeepwritteninformationinatimelymanner.（4）withthepersonnelconcern