課件修改說明1bcfc

DocumentDraftedCheckedReviewedApprovedModification-BPLANTPHASEI(2×1000MW)文件編DOC. DocumentDraftedCheckedReviewedApprovedModification-BPLANTPHASEI(2×1000MW)文件編DOC. 題SYSTEMMANUAL-RRICHAPTERFunction,GeneralDesign,DescriptionandDefinitionofEquipment,OperatingParameters工程Project文件類Document子項(xiàng)Sub-Item設(shè)計(jì)階段EngineeringSDA:B:√C: 深圳中廣核工程設(shè)計(jì)有限公司NationalAgradeengineeringCertificationNO:CHINANUCLEARPOWERDESIGNCOMPANY,LTD NationalAgradeengineeringCertificationNO:內(nèi)部編碼InternalCP0905-HX-GN-ThisdocumentisthepropertyofCNPDCItmustnotbeused、reproduced、transmittedordisclosedwithoutthepriorwrittenpermissionofCNPDC本文件之產(chǎn)權(quán)屬于中廣核工程設(shè)SYSTEMMANUAL-RRICHAPTER2-Rev版本記REVISION版日狀編Drafted校Checked審Reviewed批Approved修改Modification-ASYSTEMMANUAL-RRICHAPTER2-Rev版本記REVISION版日狀編Drafted校Checked審Reviewed批Approved修改Modification-ASYSTEMMANUAL-RRICHAPTER2-BPLANTPHASEI(2×1000MW)SYSTEMMANUAL-RRISYSTEMMANUAL-RRICHAPTER2-BPLANTPHASEI(2×1000MW)SYSTEMMANUAL-RRI2,3,4,5Function,GeneralDesign,DescriptionandDefinitionofEquipment,OperatingParametersSYSTEMMANUAL-RRICHAPTER2-Rev文件修改記SYSTEMMANUAL-RRICHAPTER2-Rev文件修改記版日章頁(yè)修改范圍AB2010-1-2011-5-3ModifyaccordingtotheTEGflowdiagram. ModifyaccordingtothemodificationofaddingemergencymakeupwatersourceforRRI.ModifyaccordingtothedesigningrequestofallusersoftheRRIsystem.Adddetaileddataaccordingtothesupplier.SYSTEMMANUAL-RRICHAPTER2-Rev SAFETY SYSTEMMANUAL-RRICHAPTER2-Rev SAFETY GENERAL Designbasesandsafety Equipment Choiceofmaterials- Equipment Equipment DESCRIPTIONANDDEFINITIONOF General Interconnectionwithother Detailofheat Sizingand Normal PARTICULARSTEADY Operatingmodeassociatedwithunit Operatingmodeassociatedwithbringingtheunittocoldshutdown4to20afterreactor Operatingmodeassociatedwithbringingtheunittocoldshutdown4to20afterreactorshutdownwithoneRRItrainavailable(subcritical Operatingmodeassociatedwithmaintainingcoldshutdown20hoursafterSYSTEMMANUAL-RRICHAPTER2-Rev Accident PARTICULARSYSTEMMANUAL-RRICHAPTER2-Rev Accident PARTICULARTRANSIENT Change-overfromonetraintothe OutageofaRRI STARTUPANDNORMAL OTHER LossofaRRItrainonsysteminRRA Demineralizedwatermake-up.Functionofsurgetanks1/2RRI001BAand LossofoneRRItrainonsysteminRRAconfigurationwithdemineralized(SED)not CoolingofbothRRApumpsbythesameRRI OTHER APPENDIXCONCEPTFLOW APPENDIXHEATLOADSANDRRIWATERFLOWRATESTOTHE APPENDIXRRIcoldtemperatureforeachoperating SYSTEMMANUAL-RRICHAPTER2-Rev 2.1Themainfunctionsofthecomponentcoolingsystem(RRI)tocoolthevarious"NuclearSYSTEMMANUAL-RRICHAPTER2-Rev 2.1Themainfunctionsofthecomponentcoolingsystem(RRI)tocoolthevarious"NuclearIsland"heattotransfertheheatloadtoanultimateheatsink,i.e.:theseawater,throughheatexchangerscooledbytheessentialservicewatersystem(SEC),toprevent,byformingabarrierbetweenNuclearIslandheatexchangersandthewateruncontrolledreleaseofradioactivefluidsintotheseaCooledheatexchangersmaybedividedintothreecategories(detailedontable"Safeguard"heatexchangers,so-calledbecausetheyareessentialfordealingwithconditionIIIorIVaccidents.Heatexchangersessentialforequipmentwhichistobecooledundernormaloperatingconditions,andifalossofoffsitepoweroccurs.Heatexchangerswhichareusedundernormaloperatingconditions,butareabsolutelyessentialimmediatelyafteralossofoffsiteabcContainmentspray-1/2EAS001RF-1/2EAS001MO√√√Chilledwatersystemofelectrical-1/2DEL001CS√√√ √√√Safetyinjection-1/2RIS001MO√√Componentcooling-1/2RRI001,003MOPO(1/2RRI002,004MO√√√SYSTEMMANUAL-RRICHAPTER2-RevabcContainmentAtmosphereMonitoring-0ETY001RV√Residualheatremoval√√√√Reactorcoolant-1/2RCP001,002,003MO-1/2RCP002BAPressurizerrelief√√√Chemicalandvolumecontrol1/2RCV003RFsealingofSYSTEMMANUAL-RRICHAPTER2-RevabcContainmentAtmosphereMonitoring-0ETY001RV√Residualheatremoval√√√√Reactorcoolant-1/2RCP001,002,003MO-1/2RCP002BAPressurizerrelief√√√Chemicalandvolumecontrol1/2RCV003RFsealingofprimary1/2RCV002RFnonregenerativeheat1/2RCV021RFexcessletdownheat√√√√√Controlroddrivemechanismventilation-1/2RRM001,002,003,√√Chilledwater-1/2DEG101,201,√√Steamgeneratorblowdown-√N(yùn)uclearsampling-1/2REN√Reactorcavityandspentfuelpitcooling-1/2PTR001,002RF,√Hotlaundryventilation-√Boronrecycledandliquidwastetreatment-TEPandTEU√GaseouswastetreatmentSYSTEMMANUAL-RRICHAPTER2-RevBNOTE:RRAsystem(pumpsandheatexchangers)SYSTEMMANUAL-RRICHAPTER2-RevBNOTE:RRAsystem(pumpsandheatexchangers)isnotnecessaryincaseofLOCA,isnecessaryincaseofsmallleakageorsteampipe2.2SAFETYThecomponentcoolingsystem(RRI)mainsafetyfunctionsInconnectionwiththeessentialservicewatersystem(SEC)totransferheatfromimportantsafety-relatedstructures,systemsandcomponents,toanultimateheatsinkwhichistheseawater.Ittransfersthecombinedheatloadofthesestructures,systemsandcomponents,undernormaloperationandaccidentconditions.Fromahealthphysicspointofview,thecomponentcoolingsystem(RRI)incaseofaleakageofacooledheatexchangerwhichisorcouldbecontaminated,anuncontrolledreleaseofradioactivefluidsintotheseawater.abc-1TEG001RF,√Auxiliarysteamdistribution-CoolerforKRTanalysis√SYSTEMMANUAL-RRICHAPTER2-Rev GENERAL3.1DesignbasesandsafetySYSTEMMANUAL-RRICHAPTER2-Rev GENERAL3.1DesignbasesandsafetyThecomponentcoolingsystemcircuitisaclosedloopbetweennuclearauxiliarysystemcomponentsandseawater.TheRRIsystemisdesignedtoprovidecoolingwateratamaximum-of35℃duringnormalplantoperationatnominalpower,keepingatcoldshutdown20hafterreactorshutdown,withamaximumseawatertemperatureof33.5℃.of40℃duringplantstartup,coldshutdownbetween4&20hafterreactorshutdown,subcriticalshutdown,withamaximumseawatertemperatureof33.5℃.of45℃duringlossofcoolantaccident(LOCA),withamaximumseatemperatureof--Systemcoolingcapacitycorrespondstotheheatloadsofindividualcomponentsneedtooperatesimultaneouslyunderdifferentplantoperatingplantnormalplantoperationatnominalresidualheatremovaltoachieveandmaintaincoldshutdown,subcriticalshutdown(onlyoneRRItrainavailable),TheRRIsystemisdesignedtomeetthefollowing SAFETY ReferenceLNPS1and PRCRCCPcodeapplicationnote§2.3.6and§2.1.3.RCC-Psupplementcodeapplicationnote2.5.SARchapter -ReferencetoparticularrulesandAFNOR,RCC-M,ANSIB16.34,CODAP,RCC-ESYSTEMMANUAL-RRICHAPTER2-Rev RCC-PConditionsincaseoflossoftheRRIsafetySYSTEMMANUAL-RRICHAPTER2-Rev RCC-PConditionsincaseoflossoftheRRIsafetypartcomplieswith Activecomponent Plateheatexchangers: ElectricalElectricalredundancy5ENVIRONMENTAND Separationofredundant-ActiveYes,forsafetytrains(separatedNo,forredundantcomponentsthesame-Passive Externalattacksagainstwhichsystemis--Steam-Pipe-Turbine-Miscellaneous-Airplane-SafeshutdownYes,exceptedpipeconnectedto 1/2RRI700VNand1/2RRI552VNoutlet)andDWLsystem(between9RRI063DIand--NotRevTheportionofthesystemcoolingtheheatexchangersonsafeguardsystemsisdesignedtakingintoaccountthesinglefailurecriterionandthepossiblelossofon-siteoroff-sitepowersuppliers.Consequently,theRRIcircuitcomprisestwoseparatesafeguardtrains,suppliedbytrainsAandBwhicharebackedupRevTheportionofthesystemcoolingtheheatexchangersonsafeguardsystemsisdesignedtakingintoaccountthesinglefailurecriterionandthepossiblelossofon-siteoroff-sitepowersuppliers.Consequently,theRRIcircuitcomprisestwoseparatesafeguardtrains,suppliedbytrainsAandBwhicharebackedupbydieselgenerators,andthecomponentscommonloop,suppliedbyoneofthetwotrains.-Noxiousvaporsorgases(otherthosecausedbyNot-Liquids(escapingfrombreaksin-IonizingNot-Explosions:fromin-Not-ParticularprecautionsagainstRCC-I(1983+codenote1987)+RCC--TornadoandinducedNot Attacksonother-Pipe--Noxiousvaporsorgases(otherthosecausedby-Flooding-Ionizing-- In-service Periodic Outsidecontrolledareabutcircuitsareinsidecontrolled ProtectionagainstSYSTEMMANUAL-RRICHAPTER2-Rev3.2EquipmentSYSTEMMANUAL-RRICHAPTER2-Rev3.2EquipmentDesignconditionsforequipmentareas-RRI/SECheatexchangers:heatexchangesurfaceisissuedfromthethermalcalculationresults,establishedbytheRRI/SECplatetypeheatexchangermanufacturer,whichshowsthat"Normaloperatingconditions"isthesizingcase.RRI/DEGheatexchanger:sizingissuchthatitallowsfeedingthelowtemperatureRENheatexchangerswithRRIcoolingwater,subcooledtoatemperaturelessthanequalat30℃,inordertoobtainthesampletobeanalyzedcooledtoatemperature-about35℃(seedatasheets1/2RRI005RFheatexchangeronchapterPumps:nominalflowrate(producedbyonepump)isdeterminedbynormaloperation,totalheadbeingdeterminedbythelegprovidingthegreatestpressurelosses.Designallowsforloadfollowasregardswastetreatmenti.e.,twoTEPgasstripperevaporatorunitsoncontinuous--3.3Choiceofmaterials-3.3.1EquipmentPlatetypeheatexchangerwithtitaniumplates.Pumpcasingsmadeofcarbonsteel.Carbonsteelforpipingand3.3.2EquipmentSeeequipmentclassificationlist:SYSTEMMANUAL-RRICHAPTER2-Rev DESCRIPTIONANDSYSTEMMANUAL-RRICHAPTER2-Rev DESCRIPTIONANDDEFINITIONOFTheRRIcircuitisrepresenteddescribedinflowdiagrams:GeneralForeachunittheRRIcircuitcomprisestwoseparatesafeguardtrainsandacommonsuppliedbyboth4.1.1.1SafeguardThepartoftheRRIwhichisessentialforreactorsafeguardandcooldownis100%redundant.Thecircuitthereforecomprisestwoindependenttrains,suppliedrespectivelybyelectricallinesAandB,eachofwhichcanprovide100%essentialcoolinginthecaseofanaccident.Eachtrainconsists-two100%centrifugalpumps(1/2RRI001POand1/2RRI003POontrainA,1/2RRI002POand1/2RRI004POontrainB),SYSTEMMANUAL-RRICHAPTER2-RevtwoRRI/SECheatexchanger,dividedintotwo50%capacityportions(1/2RRI001RFand1/2RRI003RFontrainA,1/2RRI002RFand1/2RRI004RFontrainB),wheretheheatistransferredtoSECwater,atpumpdischarge,oneRRISYSTEMMANUAL-RRICHAPTER2-RevtwoRRI/SECheatexchanger,dividedintotwo50%capacityportions(1/2RRI001RFand1/2RRI003RFontrainA,1/2RRI002RFand1/2RRI004RFontrainB),wheretheheatistransferredtoSECwater,atpumpdischarge,oneRRIsurgetank(1/2RRI001BAontrainA,1/2RRI002BAontrainB),connectedthesuctionlegsonthepumps.Thesesurgetanks,whichprovidesuctionheadforthecompensationforcontractionandpossiblepressurepulseareventedtothenuclearauxiliarybuildingventilationsystem(DVN),sincetheymaycontainradioactiveelements.Corrosioninhibitingagentscanbeinjectedfromthechemicalreagentsinjectionsystem(SIR)totheRRIwater.DemineralizedwaterdistributionsystemforNuclearIsland(SED)isusedformakeup.UndertheSafetyShutdownEarthquake(SSE)condition,withSEDsystemunavailableand"distresslevel"alarmappearedforthesurgetankoftheoperatingRRItrain,nuclearislandfireprotectionsystem(JPI)isusedformakeup.Eachtrain-oneheatexchangerfromthecontainmentspraysystem(1/2EAS001RFontrainA-1/2EAS002RFontrainB),oneheatexchangerfromthechargingpumproomemergencyventilationsystem(1/2DVH001RFontrainA-1/2DVH002RFontrainB),onecondensersfromtheelectricalbuildingchilledwatersystem(1/2DEL001CSontrainA-1/2DEL002CSontrainB)althoughtheDELisnotasafeguardsystem,oneheatexchangerfromtheresidualheatremovalsystem(1/2RRA001RFontrainA-1/2RRA002RFontrainB),onehydrogenrecombinerfromcontainmentatmospheremonitoringsystem(0ETY001RVontrainA–0ETY002RVontrainB)(RRIonlysupplyingcoolingwaterinLOCAcondition),thecoolingsystemforthefollowingpumpsandpumpTrainATrainBSYSTEMMANUAL-RRICHAPTER2-RevForequipmentitemsonSYSTEMMANUAL-RRICHAPTER2-RevForequipmentitemsonredundanttrains,electricalsupply,control,monitoringthedieselsetback-upsupplyareseparatedintotwoseparatelinesAandB,eachofisassignedtoa4.1.1.2CommonloopCoolingwaterdistributiontothecoolersnotrequiredtoserveduringaccidentconditionsissuppliedbyeitherredundantloopandcanbeisolatedfromthesafeguardtrainsofthesystembyelectricallymotorizedvalves(1/2RRI041VNand1/2RRI058VNfortrainA,1/2RRI040VNand1/2RRI059VNfortrainB).Thislegcoolsthefollowingcondensersofthechilledwaterproductionanddistributionsystemthenonregenerativeheatexchangerofthesteamgeneratorblowdownsystem(APG),reactorcoolantpumpsandpressurizerrelieftank,excessletdownheatexchanger,non-regenerativeheatexchangerandsealwaterheatexchanger,thesethreeheatexchangersinterfacewithandarepartofthechemicalandvolumecontrolsystem(RCV),heatexchangersofthereactorcavityandspentfuelpitcoolingsystem(PTR),thesethreeexchangerscooledontheRRIsideonlywhentheRRIcommonusersaresystematicallysuppliedbytheotherunit,heatexchangersofthenuclearsamplingsystem(REN);forsomeofthem(lowtemperatureheatexchangers),afractionoftheRRIwaterflowissubcooledin1/2RRI005RFbychilledwaterfromtheDEGsystem,aircoolersofthecontrolroddrivemechanismventilationsystem-B--TheaboveequipmentisassignedtoeachplantThecommonloopalsosuppliescoolingwatertoequipmentsharedbetweenbothplantboronrecyclesystem(TEP)evaporatorsandgasstrippers,liquidwastetreatmentsystem(TEU)evaporator,gaseouswastetreatmentsystem(TEG)compressorheatexchangerformonitoringactivityofcondensatesfromtheauxiliarysteamdistributionsystem(SVA),SYSTEMMANUAL-RRICHAPTER2-Rev-hotlaundryventilationsystemTheseequipmentcanbecooledbytheRRIsystemofeitherplantunit(switchoverisachievedbyactuatingmotoroperatedvalves9RRI044VN,9RRI045VN,9RRI322VN,ThePTRheatexchangerscanbeemergencysuppliedfromtheotherplantunit.Manuallyoperatedvalves1/2RRI043VNand1/2RRI205VNmakeitSYSTEMMANUAL-RRICHAPTER2-Rev-hotlaundryventilationsystemTheseequipmentcanbecooledbytheRRIsystemofeitherplantunit(switchoverisachievedbyactuatingmotoroperatedvalves9RRI044VN,9RRI045VN,9RRI322VN,ThePTRheatexchangerscanbeemergencysuppliedfromtheotherplantunit.Manuallyoperatedvalves1/2RRI043VNand1/2RRI205VNmakeitpossibletoisolatethePTRheatexchangersfromtheRRIsystemoftheplantunit.Thenthesupplyisensured,viatheheaderscommontobothplantunits,fromtheother4.1.2InterconnectionwithotherRRIsystem-Steamgeneratorblowdown-NuclearIslandchilledwater-ElectricalBuildingchilledwater-Chargingpumproomemergencyventilation-Hotlaundryventilation-Containmentspray-Reactorcavityandspentfuelpitcoolingand-Reactorcoolant-Chemicalandvolumecontrol-Nuclearsampling-Safetyinjection-Residualheatremoval-Controlroddrivemechanismventilation-Auxiliarysteamdistribution-Gaseouswastetreatment-Boronrecycle-Liquidwastetreatment-ContainmentatmospheremonitoringFluidsystemSYSTEMMANUAL-RRICHAPTER2-Rev-Componentcoolingroomsventilation-Nuclearauxiliarybuildingventilation-NuclearIslandFire-Ventanddrainsystem(nuclear-InstrumentcompressedSYSTEMMANUAL-RRICHAPTER2-Rev-Componentcoolingroomsventilation-Nuclearauxiliarybuildingventilation-NuclearIslandFire-Ventanddrainsystem(nuclear-Instrumentcompressedairdistribution-Essentialservicewater-Demineralizedwaterdistributionsystem(nuclear-ChemicalreagentsinjectionElectricalsystem--110VDCPowersupply(train-110VDCPowersupply(NuclearAuxiliary-Unit48VDCPowersupply(train-Unit48VDCPowersupply(train-Common48VDCPowersupply(Nuclear-6.6kVACEmergencyPowerDistribution(train-6.6kVACEmergencyPowerDistribution(train-LVACNetwork380V(NX-LVACEmergencynetwork380V(train-LVACEmergencynetwork380V(train-Vital220VACPower(protectiongroup-Vital220VACPower(protectiongroup-Vital220VACPower(protectiongroup-Vital220VACPower(protectiongroup----OtherSYSTEMMANUAL-RRIRevThemaximumheattoevacuatedandtheminimumcoolingflow,withtemperatureconditionsspecifiedin§3.1.,foreachusercooledbytheRRIisdetailedonthefollowingtable,foreachcaseofnormaloraccidentoperation(seeAPPENDIX4.2).Foreachoperatingcaseconsideredinchapter3.1,theRRItemperatureSYSTEMMANUAL-RRIRevThemaximumheattoevacuatedandtheminimumcoolingflow,withtemperatureconditionsspecifiedin§3.1.,foreachusercooledbytheRRIisdetailedonthefollowingtable,foreachcaseofnormaloraccidentoperation(seeAPPENDIX4.2).Foreachoperatingcaseconsideredinchapter3.1,theRRItemperature(outletoftheRRI/SECheatexchanger)isshowedinthefollowingtableinAPPENDIX4.3.ThistableshowsthenormaloperatingconditionsisthesizingcaseoftheRRI/SECheatintheotheroperatingcases,themaximumRRIdesigntemperatureisneverDetailofheatEffluentRRIflowsandevacuatedheatloadareasfollowsTEU-Condenser-Distillatecooler-Auxiliarysteamcondensatecooler-EvaporatorrecirculationpumpTEPevaporator(2sets)per-Evaporatordistillatecondenser(9TEP003or--TXS-Testdata-PlantcomputerInformationandcontrol-Remoteshutdown-Plantradiationmonitoring-Maincontrol-ReactorprotectionSYSTEMMANUAL-Rev4.2.2.2CoolingofRCP*foreachRCPpump,therearetwoStartupandnominaloperatingconditions.Coldshutdownbetween4hand20h.ForservicingRRI HEAT UpperLowerSYSTEMMANUAL-Rev4.2.2.2CoolingofRCP*foreachRCPpump,therearetwoStartupandnominaloperatingconditions.Coldshutdownbetween4hand20h.ForservicingRRI HEAT UpperLowerMotoraircoolers(foreachThermal134.8-Evaporatordistillatecooler(9TEP003or-Evaporatorconcentratecooler(9TEP005or9-EvaporatorSVAcondensatecooler(9TEP007orTEPgasstrippers(2sets)per-Gasstrippercondenser(9TEP001or5-Gasstripperwastecooler(9TEP001or-GasstripperSVAcondensatecooler(9TEP009or-Gasstripperdrainingpumpmotor(9TEP003orTheflowandtheheatloadtakenintoaccountontheprevioustablecorrespondtosimultaneousutilizationoftwogasstrippers,twoTEPevaporatorsandoneTEUTEGDWLSYSTEMMANUAL-RRICHAPTER2-RevSYSTEMMANUAL-RRICHAPTER2-Rev SinceRRIflowrateisnotregulated,theflowrateof350.4m3/hisobtained(seetablepage30).4.2.2.3CRDMventilationThecoolingcircuitfortherodmechanismventilationcomprisestwoparallellegs,withtwo50%exchangersinseries.AllfourexchangersarepermanentlysuppliedbytheRRI.AsingleexchangerperlegevacuatesRRMheatload.4.2.2.4ChilledwatercondenserTheDEGcircuitincludesthree50%chillerOneortwosetsarepermanentlysuppliedbythe4.2.2.5SpentfuelpitThePTRcircuitincludesthreeplateheatThevaluestakenintoaccountinthetableofRRIrequirementsonnormaloperationare542.25m3/h.OnlyoneisrequiredtocoolbyRRIwater.Duringtherefueling,twoheatexchangersarecooledbyRRIwater.ThetwoheatexchangersareinparallelontheRRIside.Theflowrateis542.25m3/hforeachofthetwo.DuringtherefuelingandusingforbackupofRRAsystem,thethreeheatexchangersarecooled.Twoheatexchangers,inparallelwiththethirdoneontheRRIside,arecooledinseries.Theflowrateis542.25m3/hforeachloop.BeforetherefuelingstartsandusingforbackupoftheRRAsystem,RRIsystemsupplieseachoftwoheatexchangerswithcoolingwater,oneofwhichmustbePTR002RF.Theflowrateis542.25m3/hforeach.ThetwoexchangersaresetinparallelontheRRIside.ThesetupofPTRheatexchangersontheRRIsideisactualizedbyoperatorsviathemanualvalvesonthepipes.FlowdistributionontheRRIsideisensuredbytherestrictingorificeplate.Theporediameteroftheorificeplateissetbeforehandduringthecommissioningphase.Note:Duringtherefueling,thecommonuserstobothplantsaresystematicallybytheother4.2.2.6Non-regenerativeheatexchangerThevaluestakenintoaccountinthetableofRRIrequirementsonnormaloperationareoccasionalandcorrespondtotheborationphaseoftheprimarycircuitbeforebeginningofcoldshutdown.Duringnormalunitoperation,thecorrespondingvaluesareSYSTEMMANUAL-RRICHAPTER2-Revand4.2.2.7SteamgeneratorblowdownThevaluestakenintoaccountonthetablecorrespondtomaximumblowdownflowrate4.2.3SizingandCarbonsteelisusedinmanypipesandvalves.TheSYSTEMMANUAL-RRICHAPTER2-Revand4.2.2.7SteamgeneratorblowdownThevaluestakenintoaccountonthetablecorrespondtomaximumblowdownflowrate4.2.3SizingandCarbonsteelisusedinmanypipesandvalves.TheRRI/SECheatexchangersare"plate"type.Butterflyvalvesareusedfordiameters65mm(included)andaboveandglobetypefordiameterslessthan65mm.Containmentisolationvalvesaregatetype.Surgetanks,heatexchangersandpumpsaredetailedinthedatasheets(chapterTheRRIwatercharacteristicsareasElectricalconductivityat pHat11to6toMeshsize(duringChlorides+ controladditivePO3-4100toSuspended-NormalSYSTEMMANUAL-RRICHAPTER2-RevActivityActivityismonitoredcontinuously(pumpsoutlet).Themonitoringalarmsinthecontrolroom(seeKRTmanual).4.3ThevariousRRIcircuitcomponentsarelocatedasdetailedBUNITUNITLEVELOFRRIequipmentSYSTEMMANUAL-RRICHAPTER2-RevActivityActivityismonitoredcontinuously(pumpsoutlet).Themonitoringalarmsinthecontrolroom(seeKRTmanual).4.3ThevariousRRIcircuitcomponentsarelocatedasdetailedBUNITUNITLEVELOFRRIequipmentspecificto (1/2RRI001-NE712-NF722--RRIplateheat(1/2RRI001toNE260-NF262- RRI- -RRIpumps(1/2RRI0011/2RRI004MO-NE360-NF362-Coolersspecifictoone-Containmentspray·1/2EAS001--·1/2EAS001-K110-K150Safetyinjection1/2RIS001-K112-K152Chilledwatersystem-PerturbedSYSTEMMANUAL-RRICHAPTER2-RevUNITUNITLEVELOFTHEAREA(m)1/2DEL001- emergencyventilation1/2DVH001--Residualheatremoval·1/2RRA001--·1/2RRA001- SYSTEMMANUAL-RRICHAPTER2-RevUNITUNITLEVELOFTHEAREA(m)1/2DEL001- emergencyventilation1/2DVH001--Residualheatremoval·1/2RRA001--·1/2RRA001- monitoring-Chilledwater1/2DEG101-201--Steamgenerator-Reactorcoolant·1/2RCP001-002-003MO- -Chemicalandvolume·sealingofprimary exchangerRevBAREAFLOORLEVELTHECoolerscommontobothUNITUNITLEVELOFTHEAREA(m) exchanger-Controlroddriveventilation1/2RRM001-002-003-RevBAREAFLOORLEVELTHECoolerscommontobothUNITUNITLEVELOFTHEAREA(m) exchanger-Controlroddriveventilation1/2RRM001-002-003--Reactorcavityandspentpitcooling1/2PTR001-002--Nuclearsamplingsystem·hightemperaturecoolersRCPandRRA1/2REN002-1/2REN001-·hightemperaturecoolers (1/2REN071to073RF)·lowtemperaturecoolersRCP,RRAandRCVlines(1/2REN011to016RF)·lowtemperaturecoolersonSGblowdownlines(1/2REN041to044RF081toRevBBAREAFLOORLEVELTHE-TEP,TEU·TEPgasNC300-·TEPND306-RevBBAREAFLOORLEVELTHE-TEP,TEU·TEPgasNC300-·TEPND306-·TEU (9TEP009-NC231-·evaporator9TEP007--TEGcompressorNB393- KRTcoolers--Hotlaundryventilation-SYSTEMMANUAL-RRICHAPTER2-RevSYSTEMMANUAL-RRICHAPTER2-RevOPERATINGRRIconfigurationscorrespondtounitoperation.NormaloperationoftheRRIsystemcorrespondstonormalunitpoweroperation.ConfigurationsaredescribedNormalAllcoolersaresuppliedbyonetrain,theotheroneisshutdown.CoolerscommontobothunitsaresuppliedeitherbyRRIunit1orRRIunit2.Oncethesensor-outletoftheRRI/SECheatexchangers)appearsanalarminKICsystem,theoperatormuststarttheotherpumpofthesameSECtrainmanually.Whenasinglepumpofonetrainisinservice,allpumpsoftheothertrainareshutdown.Onepumpoftheshutdowntrainmaybeisolatedformaintenance.Asensorforeachpump(1/2RRI003SDfor1/2RRI001PO,1/2RRI005SDfor1/2RRI003PO,1/2RRI004SDfor1/2RRI002PO,and1/2RRI006SDfor1/2RRI004PO)givesanalarminthecontrolroom,incaseoflowmotorpumpcoolingPARTICULARSTEADYOperatingmodeassociatedwithunitNormally,onepumpisrequiredsincethecoolerscommontobothunitsarecooledbyotherunit.Twopumpswillberequiredifcoolerscommontobothunitsarecooledbytheunitonstartup.5.2.2Operatingmodeassociatedwithbringingtheunittocoldshutdown4to20afterreactorOnetrainwithonepumponlysuppliesoneoftheRRAheatexchangers.Theothertrain,withtwopumps,suppliestheotherRRAheatexchangerandallcoolersofthecommonNormally,coolerscommontobothunitsarecooledbytheother5.2.3Operatingmodeassociatedwithbringingtheunittocoldshutdown4to20afterreactorshutdownwithoneRRItrainavailable(subcriticalSituationiscorrespondingtothelossofoneRRItrainduringtheshutdowntransient.Inthiscase,thesizingoftheRRIheatexchangerpermitstokeeptheprimarycoolanttemperaturebelowSYSTEMMANUAL-RRICHAPTER2-Rev5.2.4OperatingmodeassociatedwithSYSTEMMANUAL-RRICHAPTER2-Rev5.2.4Operatingmodeassociatedwithmaintainingcoldshutdown20hoursafterAfter20hours,intheactualoperatingconditionsoftheplantunit(seawatertemperature,heattoberemoved...),theoperatingmodewithtwopumpsofonetrainandonepumpoftheothertraininservice,ismaintained.Afterabout48hours,oneRRIpumpcanbestopped.RRApumpcorrespondingtotheshutdownRRItrainmustbestoppedorsuppliedmanuallybytheRRItraininoperation(see§5.5.4.).Oncethesensor(1/2RRI081/082MT-outletoftheRRI/SECheatexchangers)appearsanalarminKICsystem,thecoolerscommontobothunitsmustbecooledbytheothertrain.AndtheoperatorshouldswitchoverthecoolerstotheothertrainAccidentContainmentThe"phaseAcontainmentisolation"signalactuatesclosureofthefollowingcontainmentpenetrationpipevalves: pressurizerrelieftankandexcessletdownheatexchanger(1/2RRI318VN,300VN,304VNandThe"phaseBcontainmentisolation"penetrationpipe-RRAheatexchangersisolationvalves:1/2RRI011VN,019VN,021VN1/2RRI012VN,020VN,1/2RRI210VNto212VN1/2RRI283VNto1/2RRI280VNto--RRMheatexchangersisolation1/2RRI170VN,177VN,5.2.5.2ContainmentThe"containmentspray"signaltheEASheatexchangerpneumaticisolationvalvestoopen(TrainA:1/2RRI035VN,TrainB:1/2RRI036VN),toclosethetwoisolationvalvesofthecommonloop,whichwereopen,andtoSYSTEMMANUAL-RRICHAPTER2-SYSTEMMANUAL-RRICHAPTER2-Revthatthetwoothersvalvesoftheothertrain(trainA:1/2RRI041VNand1/2RRI058VN,trainB:1/2RRI040VNand1/2RRI059VN)areclosed.ThussafeguardtrainsonlyaretostartuponepumpofthetrainonstandtomaintaintheinitialstatusofthetraininoperationwithoneortwoPTRcoolerswhicharenomoresuppliedmaybemanuallysuppliedfromtheotherunitbyclosingvalves1/2RRI043VNand1/2RRI205VNoftheunitunderaccident,andopeningmotoroperatedvalves9RRI044VNand9RRI322VN(Unit1),9RRI045VNand9RRI323VN(Unit2).5.2.5.3SafetyOn"safetyinjection"signal(seeRISsystemmanual),startupofthesinglepumponlinewhichwasshutdown.PumpsonthelineinoperationremaininPARTICULARTRANSIENTChange-overfromonetraintotheOnetrainonlyoperatesundernormalconditions(see§5.1.).Itsuppliestheheatexchangersofthecommonloop.Isolationbetweenthetwotrainsismaintainedbyvalves1/2RRI041VNand1/2RRI058VN(trainA)orbyvalves1/2RRI040VNand1/2RRI059VN(trainB).Thechangeovertothestandbytrainfromanoperatingtraincanbeautomaticormanual.Duringmanualchangeover,thesecondtrainisstarted(switchovervalvesopenedandpumpsstartedup)beforethefailedtrainisstoppedtoavoidsignificantlossofRRIflow.TheswitchovertakesplaceautomaticallyincaseoflowpressureattheRRIpumpoutlet