內(nèi)容說(shuō)明1acfca2010 10嫻雷達(dá)firstissue

AFirstDOC.PYX17ARE006DKS045GN SYSTEMDESIGNMAINFEEDWATERFLOWCONTROL(ARE)(CICHAPTER6CONTROLYA:B:C:√Issuedby GUANGDONGELECTRICPOWERDESIGN44-H0021S-K0802-InternalIdentificationThisdocumentisthepropertyofGEDI.Itmustnotbeused,reproduced,transmittedordisclosedwithoutthepriorwrittenpermissionofGEDI.ThisdocumentisthepropertyofGEDI.Itmustnotbeused,reproduced,transmittedordisclosedwithoutthepriorwrittenpermissionofGEDI.本文件之產(chǎn)權(quán)屬于廣東省電力設(shè)計(jì)研究院。未獲我 準(zhǔn) 核 對(duì) 寫(xiě) 簽ABCDEFGCHAPTER6-CONTROLFeedwaterDownstreamMain90%flowvalves: ARE052VL,056VL,060VLBypass15%(min)flow ARE054VL,058VL,Thenormalsituationduringbothrunningandshutdownconditionsisthattheisolatorsarefullyopenandtheirequalisingvalvesarefullyclosed.Onreceiptofanemergencytripsignalthemainisolatorswillcloseautomaticallyin20seconds.Thebypassisolatorsclosein17seconds.Themotorizedequalisingvalvesforthe90%dutydownstreamisolatorswillalsobesignaledtocloseonreceiptofanemergencytripsignal(irrespectiveofequalisingvalveposition).ReopeningisviaControlRoomcontrols,providedthatnotripsignalstillexists.Thesevalvesmaybeoperatedlocallyfromtheactuator,orremotelyfromtheKIC,local/remoteselectionbeingmadeattheactuator.Normaloperationisremote.FeedwaterUpstreamMain90%flowvalves: ARE051VL,055VL,059VLBypass15%(min)flowvalves: ARE053VL,057VL,061VLTheseareprovidedwithlocalcontrolsonlysincetheyonlyrequiretobeoperatedformaintenancepurposes.Feedwater90%flowmotorised Forupstreamisolators:ARE063VL,065VL,067VL.Theseareprovidedwithlocalcontrolsonly,sincetheyareoperatedonlyformaintenancepurposes.Fordownstreamisolators:ARE064VL,066VL,Theseareprovidedwithopen/closeandlocal/remoteselectionattheactuator,normaloperationbeing'remote'.Intheremoteselection,thevalvesoperateautomaticallyoncontrolfromtheassociateddownstreamisolator,asdescribedin6.6.3.Bypass15%(min)flowBothupstreamanddownstreamisolatorsareprovidedwithmanuallyoperatedequalisingvalve.HPheaterfeedwaterrecirculationtocondenserCEX101CSisolatingvalveARE007VLThisvalvewithelectricmotorizedactuatorisusedforfeedwatersidecleanupoftheAHPsystempriortoplantstart-up,andisnormallyleftclosed.Ithasthefollowingcontrols:Thevalvesmaybeoperatedlocallyfromtheactuator,orremotelyfromtheKIC,local/remoteselectionbeingmadeattheactuator.Normaloperationisremote.Thisvalveisinterlockedtopreventopeningandprotectclosingifanymainfeedwaterpumpisrunning(frompumpdischargepressuresensorsontheAPAsystem&APDpumpnotrunning).Analarmisraisedifthevalveisnotclosedwithanypumprunning.LOGICPYX17ARE016DKS045 ABCDEFGIDARE007VLNOTY√-A-Y√-AY√-AY√-AY√-AY√-AY√-ACOMPUTERIZEDCONTROLANDID—ManualOpen007VL√---A-—ManualClose007VL√---A-—ManualReset007VL√---A-√---A-—007VLvalve√---A-√---A-ID—ManualOpen052VL/064VL√---A-—ManualClose052VL/064VL√---A-—ManualReset052VL/064VL√---A-√---A-—052VLvalve√---A-√---A-—ManualOpen054VL√---A-—ManualClose054VL√---A-—ManualReset054VL√---A-√---A-—054VLvalve√---A-√---A-—ManualOpen056VL/066VL√---A-—ManualClose056VL/066VL√---A-—ManualReset056VL/066VL√---A-√---A-—√---A-√---A-—ManualOpen058VL√---A-—ManualClose058VL√---A-ID—ManualReset058VL√---A-√---A-—058VLvalve√---A-√---A-—ManualOpen060VL/068VL√---A-—ManualClose060VL/068VL√---A-—ManualReset060VL/068VL√---A-√---A-—060VLvalve√---A-√---A-—ManualOpen062VL√---A-—ManualClose062VL√---A-—ManualReset062VL√---A-√---A-—062VLvalve√---A-062VLValveopen√---A-√---A-—064VLvalve√---A-√---A-√---A-ID— valve√---A-√---A-√---A-—068VLvalve√---A-√---A-ABCDEFGIDUnitUnitXARE701ARE052VLRemote/Stop/Localselector√√AREA—XARE702ARE052VLOpen/Neutral/Closeselector√√AREA—XARE703ARE064VLRemote/Stop/Localselector√√AREA—XARE704ARE064VLOpen/Neutral/Closeselector√√AREA—XARE705ARE056VLRemote/Stop/Localselector√√AREA—XARE706ARE056VLOpen/Neutral/Closeselector√√AREA—XARE707ARE066VLRemote/Stop/Localselector√√AREA—XARE708ARE066VLOpen/Neutral/Closeselector√√AREA—XARE709ARE060VLRemote/Stop/Localselector√√AREA—XARE710ARE060VLOpen/Neutral/Closeselector√√AREA—XARE711ARE068VLRemote/Stop/Localselector√√AREA—XARE712ARE068VLOpen/Neutral/Closeselector√√AREA—XARE713ARE054VLRemote/Stop/Localselector√√AREA—IDUnitUnitXARE714ARE054VLOpen/Neutral/Closeselector√√AREA—XARE715ARE058VLRemote/Stop/Localselector√√AREA—XARE716ARE058VLOpen/Neutral/Closeselector√√AREA—XARE717ARE062VLRemote/Stop/Localselector√√AREA—XARE718ARE062VLOpen/Neutral/Closeselector√√AREA—XARE719ARE051VLRemote/Stop/Localselector√√AREA—XARE720ARE051VLOpen/Neutral/Closeselector√√AREA—XARE721ARE055VLRemote/Stop/Localselector√√AREA—XARE722ARE055VLOpen/Neutral/Closeselector√√AREA—XARE723ARE065VLRemote/Stop/Localselector√√AREA—XARE724ARE065VLOpen/Neutral/Closeselector√√AREA—XARE725ARE059VLRemote/Stop/Localselector√√AREA—XARE726ARE059VLOpen/Neutral/Closeselector√√AREA—XARE727ARE067VLRemote/Stop/Localselector√√AREA—XARE728ARE067VLOpen/Neutral/Closeselector√√AREA—XARE729ARE053VLRemote/Stop/Localselector√√AREA—XARE730ARE053VLOpen/Neutral/Closeselector√√AREA—XARE731ARE057VLRemote/Stop/Localselector√√AREA—XARE732ARE057VLOpen/Neutral/Closeselector√√AREA—XARE733ARE061VLRemote/Stop/Localselector√√AREA—IDUnitUnitXARE734ARE061VLOpen/Neutral/Closeselector√√AREA—XARE700ARE063VLRemote/Stop/Localselector√√AREA—XARE735ARE063VLOpen/Neutral/Closeselector√√AREA—XARE736ARE007VLRemote/Stop/Localselector√√AREA—XARE737ARE007VLOpen/Neutral/Closeselector√√AREA—ARE052VLOPEN/CLOSE√√A—ARE056VLOPEN/CLOSE√√A—ARE060VLOPEN/CLOSE√√A—ARE054VLOPEN/CLOSE√√A—ARE058VLOPEN/CLOSE√√A—ARE062VLOPEN/CLOSE√√A—ABCDEFGStartupOpeningofthemaindownstreamvalvesisbyoperationofthecontrolroomwhich,inthecaseofthe90%flowvalves(ARE052/056/060VL),willopentheassociatedequalisingvalves,followedbytheautomaticopeningofthemainvalvesandclosingoftheequalisingvalves.Forthe15%(min)flowvalves(ARE054/058/062VL)thecontrolroomKICoperatedirectlyintothevalveopeningcircuits.Sincetheisolationvalvesarenormallyleftopenonshut-downthereisnooperationrequiredonsubsequentstart-ups.FortheHPheaterfeedwaterrecirculationtocondenserCEX101CSisolationvalveARE007VL,thecontrolroomKICoperatedirectlyintothevalveopeningThisvalveisinterlockedtopreventopeningandprotectclosingifanymainfeedwaterpumpisrunning.ShutDownNooperationsOperationinCaseofIncidentand/orOnreceiptofatripsignalfromNuclearIslandthedownstreammotorisedfeedregulatingisolationvalvesareautomaticallyclosed.Iftheemergencyhasoccurredduringthevalveopeningcyclethemotorisedequalisingvalvesassociatedwiththedownstreamisolatorsonthemain90%dutylinewillalsoclosedTheequalisingvalvesassociatedwiththedownstreamisolatorsonthe15%(min)dutybypassl