成果綜合鄭成果

AFirstissuestagePHASEI(2×1000MW)廣西防城港核電廠一期（2×1000MW）工DOC.BLX17SVA003GJS045GN SYSTEMDESIGNMANUALAUXILIARYSTEAMDISTRIBUTIONSYSTEMCHAPTER3GENERALAFirstissuestagePHASEI(2×1000MW)廣西防城港核電廠一期（2×1000MW）工DOC.BLX17SVA003GJS045GN SYSTEMDESIGNMANUALAUXILIARYSTEAMDISTRIBUTIONSYSTEMCHAPTER3GENERAL第三章設(shè)計(jì)綜述A:B:C:Issuedby 證書號(hào) 廣東省電力設(shè)計(jì)研究44-H0201S-J4110-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。未獲我批準(zhǔn)：張鵬審核：校對(duì)：鄭軍編寫：胡琨批準(zhǔn)：張鵬審核：校對(duì)：鄭軍編寫：胡琨CHAPTER3-GENERALDESIGNBASISANDSAFETYTheauxiliarysteamdistributionsystemcarriessteamtothevarioususerTheseservicepipelinesareillustratedonthefollowingUnitCHAPTER3-GENERALDESIGNBASISANDSAFETYTheauxiliarysteamdistributionsystemcarriessteamtothevarioususerTheseservicepipelinesareillustratedonthefollowingUnit1DiagramofauxiliarySteamDistributionSystem–BL117SVA502GJS045DDUnit2DiagramofauxiliarySteamDistributionSystem–BL217SVA503GJS045DD.TheAuxiliarySteamDistributionsystem(SVA)isnotconsideredtobeasafetySafety1SafetyPRCCriteriaOtherSafety2Non-34FunctionalRCCPconditionsincaseoftotallossofthesystemActivecomponentredundanceEmergencypowersupplyelectrical5Environment&SeparationofredundantActivePassiveExternalthreatsagainstwhichthesystemis???????LossofcoolantaccidentsSteambreakPipewhipHightrajectoryturbineLowtrajectoryturbineprojectilesMiscellaneousprojectilesAeroplaneABCDEFGSafeshutdownearthquakeNoxiousvapoursorgasses(otherthanthosecausedbyfire)LiquidsescapingfrompipebreaksIonisingradiationExplosionsfromin-siteSafeshutdownearthquakeNoxiousvapoursorgasses(otherthanthosecausedbyfire)LiquidsescapingfrompipebreaksIonisingradiationExplosionsfromin-site5.2????????ThreatstootherNoxiousvapoursorgasses(otherthanthosecausedbyfire)???????PeriodictestsProtectionagainst6PartiallyinsidecontrolABCDEFGEQUIPMENTTheauxiliarysteam,fedintothesystemfromtheSteamTransformer(STR)atEQUIPMENTTheauxiliarysteam,fedintothesystemfromtheSteamTransformer(STR)atapressureof12barabs,188℃ataquantityofAsupplyofsteamat12barabs,188℃isreducedinpressureto4.5bar165℃priortofeedingtheNuclearIslandandtheAuxiliaryFeedwater（ASG）.ThisisillustratedonflowdiagramBL117SVA502GJS045DDunit1AuxiliarySteamDistributionsystem.Asupplyofsteamat12barabs,188℃isreducedinpressureto6.5barabs,172℃priortofeedingTurbineGlandSystem（CET）.ABCDEFGCHOICEOFMATERIALS–AllsteamandinletdrainpipelinesareconstructedinCHOICEOFMATERIALS–AllsteamandinletdrainpipelinesareconstructedinChinesestandardGB3087-2008carbonsteelto20（DN≥80）,andGB5310-200