課件分析教案1bcfc

DraftedCheckedReviewedApprovedModification-BISSUEFORDOC. 002 4512號(hào)機(jī)組安全殼連續(xù)通風(fēng)系統(tǒng)手冊(cè) SystemManual-2,3,4,5Chapter2,3,4,Function,GeneralDesign,DescriptionandDefinitionofEquipment,OperatingParametersProjectSub-ItemEngineeringBA:B:√C:工程設(shè)計(jì)國(guó)家甲級(jí)號(hào) NationalAgradeengineeringCertificationNO:NUCLEARPOWERDESIGNNationalAgradeengineeringCertificationNO:內(nèi)部編碼InternalThisisthepropertyofCNPDCItmustnotbeused、reproduced、transmittedordisclosedwithoutthepriorwrittenpermissionofCNPDC本文件之屬于中廣核工程設(shè)計(jì)。未獲本公司，任何人不得擅自使用、、傳遞或該文件。REVISIONDraftedCheckedReviewedApprovedA竹FIRSTB竹ISSUEFOR12號(hào)機(jī)組安全殼連續(xù)通風(fēng)系統(tǒng)手冊(cè)EVR-ContainmentContinuousVentilationSystemManual2,3,4,5Chapter2,3,4,Function,GeneralDesign,DescriptionandNUCLEARPOWER MODIFICATIONABFIRSTISSUEFORContentssheetadded“50%”recedby“60%”.TOC\o"1-2"\h\z\u Safety GENERAL Designbasesandsafety Equipment Choiceofmaterial- DESCRIPTIONANDDEFINITIONOF Normal Particularsteady Particulartransient Startupandnormal Other Control Themaincontainmentcontinuousventilationsystemisdesignedtomaintaintemperatureconditionsinsidethereactorbuildingforproperequipmentoperation,andtonelThesecondarycontinuousventilationsystemisdesignedtoprovideproperventilationofthedome.SafetyThecontainmentcontinuousventilationisnotasafetyrelatedNevertheless,inordertoavoidapotentialfallonthereactorelements,theductatthetopofthedomeisdesignedtowithstandasafeshutdownearthquake.DesignbasesandsafetyDesignTheEVRoperatesasarecirculationsysteminsidetheThehotairissuckedinatlevel+35.00m,cooledacrosscoolingcoilsinstalledat-3.50m,thendtotheventilatedareasviaasupplyheader(infactaringduct)locatedatlevel±0.00m.ExternalTheEVRsystemisnotconcernedbyexternalconditionsbecauseitoperatesonlyasaclosedcircuitaircirculationsystem.InternalSeethefollowing“Airflowratetable”unit1andunit2(appendixtothepresentAirTheEVRsystemprovidesaminimumairchangerate,dependingontheroomredandorangezonerooms(potentiallyhighlycontaminatedrooms) yellowzonerooms(slightlycontaminated SafetyTheEVRsystemisdesignedtomeetthefollowingReference1.2PRC1.3Other2.Seeclassification3.ENGINEERINGRULESAND-ReferencetoparticularengineeringrulesandstandardsRCC-PconditionsincaseoftotallossoftheActivecomponentRFS1.3anot3x50%formain2x100%fordome4.3ElectricalEmergencypowersupplyElectricalredundancyYes,forntavailability 5.1Separationofredundant-activeNot-passiveNot5.2Externalattacksagainstwhichthehastobe-Not Not-PipeNot-Turbine．highNot．lowNot-Miscellaneousmissiles(includingNotdropfromtheNot-AirneNotnecessary,neverthelesstheductatthe-Safeshutdownofthedomeisseismically-Not-DryingNot-Noxiousvapoursorgases(otherNotthosecausedby-Liquids(escafrombreaksinNotpi-IonizingNotExplosions:frominParticularprecautionsagainstNotRCC-I+RCC-Icodeapplication-TornadoandinducedNot5.3AttacksonotherPipeNoxiousvapoursorgases(otherthanthosecausedbyfire)FloodingIonizing 6.1Inservice6.2Periodic6.36.4ProtectionagainstEquipmentThemaincontinuousventilationsystemtakesintoaccounttheheatgainsemittedbytheequipmentlocatedinsidethereactorbuilding(excepttheintermittentlighting).ItalsoallowsfortheheatgainsoffanmotorsandEVFelectricalheatersaswellastheheatgainssurplustransferredfromtheRRMandEVCsystems.ThetotalairflowrateisTheairflowratedetailsaregiveninthefollowingtables.Eachtable(unit1andunit2)indicates:roomsummertemperatureandwintertemperatureandair．transfer．roomnumberofairflow．supplyair．normalexhaust．transfer．roomnumberoftransferredairThesecondarycontinuousventilationsystemisarecirculatingairsystem.Itpreventstheaccumulationofhotairorlightgasesatthetopofthedome.Thetotalflowrateis10000m3/h.AIRFLOWRATEAIRAIRT℃%T℃%--------------AIRFLOWRATEAIRAIRT℃%T℃%-----R-5-5-transferfromVENT--5-5-transferfromVENTAIRFLOWRATEAIRAIRT℃%T℃%--5-5-transferfromVENT---------AIRFLOWRATEAIRAIRT℃%T℃%-transfertoVENT---5-5-5-5-5-5-5-5-5-AIRFLOWRATEAIRAIRT℃%T℃%5-5-5-5-5-5--------AIRFLOWRATEAIRAIRT℃%T℃%-----------AIRFLOWRATEAIRFLOWRATEAIRAIRT℃%T℃%-Twolinesforthesameroomtoenterall-------5-5-5-5-AIRAIRT℃%T℃%5-----5---R-----AIRAIRT℃%T℃%----See---See---See---See---See---SeeR710R710R710R710R710R710R710R710R710R710R710R710R710AIRFLOWRATEAIRAIRT℃%T℃%------R750------R750--AIRFLOWRATEAIRAIRT℃%T℃%----R750-R-5-5-transferfromVENT--5-5-transferfromVENTAIRFLOWRATEAIRAIRT℃%T℃%--5-5-transferfromVENT------R--R-AIRFLOWRATEAIRAIRT℃%T℃%-transfertoVENT---5-5-5-5-5-R7505-5-5-5-AIRFLOWRATEAIRAIRT℃%T℃%5-R7505-5-5-5-5-R750----R750---AIRFLOWRATEAIRAIRT℃%T℃%-R750----R750------AIRFLOWRATEAIRAIRT℃%T℃%-------5-5-5-5-R7505-R750AIRFLOWRATEAIRAIRT℃%T℃%----5---R-----R750-AIRFLOWRATEAIRAIRT℃%T℃%---See---See---See---See---See---SeeR750-R750R750-R750R750R750-R750R750R750-R750R750R750-R750Choiceofmaterial-SeedataSpecialcharacteristicsofthesystemDuctsTherectangularductsaremadeofstainlessThecircularductsandaccessoriesaremadeofordinaryblacksheetsteel,paintedinsideandoutside.DESCRIPTIONANDDEFINITIONOFTheEVRflowdiagramsareattachedtothismanual(chapterConnectionwithotherTheEVRsystemisconnectedtothefollowingDEG:NuclearIslandChilledWaterEBA:ContainmentSweeEVC:ReactorPitEVF:ContainmentKBS:ColdJunctionKPR:RemoteShutdownKSC:MainControlKIC:ntComputerInformation&LNG:Uninterruped220VACPowersupplyLNE:Uninterruped220VACPowersupplyLNH:Uninterruped220VACPowersupplyLNP:Uninterruped220VACPowersupplyLBA:110VDCPowerSupply–TrainLBB:110VDCPowerSupply–TrainLLB:LVACEmergencyNetwork–380V–TrainLLC:LVACEmergencyNetwork–380V–TrainLLD:LVACEmergencyNetwork–380V–TrainLLE:LVACEmergencyNetwork–380V–TrainRPE:NuclearIslandVentandGeneralThecontainmentcontinuousventilationismadeupoftwo-Themainsystemconsistsof．Threesupplyductsforthethreeair-supplyunits,eachunitbalancedbyabalancingdamper(001,002,003VAR).Theductsareconnectedtoasupplyheaderinstalledaroundthereactorpitatlevel+0.00m.Fromthisheadervariousbranchessupplytheairtodifferentareasofthecontainment.．Eachbranchtake-offisfittedwithamanualbalancingdamper007to033．Threeprefilters001FP,002FP,．Threecoolingcoils001RF,002RF,．Three50%redundantrecirculatingfans001ZV,002ZV,．Sixbackdraftdampers004,114,005,115,006,116 Thesecondarysystemismadeupof．Twoisolatingdampers101VAI,102Twobeingkeptonstandby,．Twobackdraftdampers103VAN,104．Threeisolatingdampers105VAI,106VAI,107Seedatasheets(chapterSeedatasheets(chapterNormalDuringnormalntpoweroperationorhotshutdowntheEVRsystemoperatesTwofansoperate,thethirdfanbeingkeptonstandy.TheirunitflowrateisThethreecoolingcoils001RF,002RF,003RFarecontinuouslydwithchilledwatersoastomakeinstantaneouschangeoverpossible.Dampers001,002,003VARareAtthedome,oneofthetwo100%redundantfans004ZV,005ZVoperates.Theirunitflowrateis10000m3/h.Dampers101,102and107VAIareopen;dampers105and106VAIareParticularsteadyTheEVRsystemdoesnotusuallyoperateduringcoldshutdownoftheHowever,itmayoperatealongwiththeEBAsystematthebeginningofcoldshutdowntodecreasethetemperatureinthereactorbuildingmorequickly.Inthiscase,thefan002ZV(forunit1)shallnotbeusedandthedamper002VARshallbeclosedinordertokeepthenormalEBAsweeairflowdirectedintothereturnductcorrespondingtothisfan(fan001ZVanddamper001VARforunit2).Oneoftherecirculationfansatthetopofthedomeoperates.Thevalve107VAIisthenclosed,105and106VAIbeingopen.TheairexhaustedatthetopofthedomeisroutedtowardtheEBAreturnduct.ParticulartransientDuringunitcoldshutdownwiththeEBAsysteminoperation,iftheoutsidetemperatureishighandtheoperatorwishestoregulatethecontainmenttemperatureitispossible,accordingtothecoolingneeds,tostart-up:oneormoreEVCventilationoneEVRfan(001or003ZVforunit1and002or003ZVforunitTheconnectingductbetweentheEVCfansandtheEVRsupplyheadermakesitpossibletoperformthisoperatingmode.StartupandnormalTheEVRsystemisputintoservicepriortoreactorItisshutdownattheendofthereactorcoldshutdown(about140hoursaftertherodshavedropped).OtherThesystemisnotsubjecttoLOCATheductatthetopofthedomeisdesignedtowithstandasafeshutdownearthquakeinordernottodamagethereactorelements.OnafanFireonafanmotorisdetectedbytheJDTFireDetectionSystem.Theaffectedmotormustthenbestoppedandtheavailablefanstartedup.OnareactorcoolantpumporinsidetheReactorIntheeventoffireonreactorcoolantpumpsorinsidetheReactorBuilding,thefollowinginstructionsshallbeimplemented:．stoptheEVRContainmentContinuousVentilation．checkthattheETYsystemhasbeenstoppedandthecontainmentisolationvalves．followingthefireoccurrence,usetheEBAsystem(linkedtotheNABventilationsystem,DVN)toremovesmokefromtheatmosphere,priortoanyentryof LossofoffsiteThecontinuousventila