《水电站技术供水系统规范》（NBT10792-2021）英文版征求意见稿.docx

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1、ICS 27.140P 59NBENERGYSECTORSTANDARDOFTHEPEOPLE9SREPUBLICOFCHINA中华人民共和国能源行业标准NB/T10792-2021CodeforCoolingWaterSupplySystemsofHydropowerStations水电站技术供水系统规范IssuedonNovember16,2021ImplementedonMay16,2022ENERGYSECTORSTANDARDOFTHEPEOPLE9SREPUBLICOFCHINA中华人民共和国能源行业标准CodeforCoolingWaterSupplySystemsofHydro

2、powerStations水电站技术供水系统规范NB/T10792-2021ChiefDevelopment:ChinaRenewableEnergyEngineeringInstituteApprovalDevelopment:NationalEnergyAdministrationofthePeoplesRepublicofChinaImplementationDate:May16,2022ChinaWater&PowerPressBeijing202xIntroductionThisEnglishversionisoneofChina,senergysectorstandardserie

3、sinEnglish.ItstranslationwasorganizedbyChinaRenewableEnergyEngineeringInstituteauthorizedbyNationalEnergyAdministrationofthePeople,sRepublicofChinaincompliancewithrelevantproceduresandstipulations.ThisEnglishversionwasissuedbyNationalEnergyAdministrationofthePeople,sRepublicofChinainAnnouncement202x

4、No.xxdatedxxxx,202x.ThisversionwastranslatedfromtheChineseStandardNB/T10792-2021,CodeforCoolingWaterSupplySystemsofHydropowerStations,publishedbyChinaWater&PowerPress.ThecopyrightisreservedbyNationalEnergyAdministrationofthePeoplesRepublicofChina.Intheeventofanydiscrepancyintheimplementation,theChin

5、eseversionshallprevail.Manythanksgotothestafffromrelevantstandarddevelopmentorganizationsandthosewhohaveprovidedgenerousassistanceinthetranslationandreviewprocess.ForfurtherimprovementoftheEnglishversion,anycommentsandsuggestionsarewelcomeandshouldbeaddressedto:ChinaRenewableEnergyEngineeringInstitu

6、teNo.2Beixiaqjie,Liupukang,XichengDistrict,Beijing100120,ChinaWebsite:Translatingorganization:POWERCHINAKunmingEngineeringCorporationLimitedTranslatingstaff:Reviewpanelmembers:翻译出版说明本译本为国家能源局委托水电水利规划设计总院按照有关程序和规定，统一组织翻译的能源行业标准英文版系列译本之一。202x年X月X日，国家能源局以202x年第X号公告予以公布。本译本是根据中国水利水电出版社出版的水电站技术供水系统规范NB/T

7、107922021翻译的，著作权归国家能源局所有。在使用过程中，如出现异议，以中文版为准。本译本在翻译和审核过程中，本标准编制单位及编制组有关成员给予了积极协助。为不断提高本译本的质量，欢迎使用者提出意见和建议，并反馈给水电水利规划设计总院。地址：北京市西城区六铺炕北小街2号邮编：100120网址：本译本翻译单位：中国电建集团昆明勘测设计研究院有限公司本译本翻译人员：本译本审核人员：国家能源局AnnouncementofNationalEnergyAdministrationofthePeople,sRepublicofChina2021No.5InAccordancewithStandard

8、izationLawofthePeoplesRepublicofChinaandMeasuresfortheAdministrationofEnergyStandardization,NationalEnergyAdministrationofthePeoplesRepublicofChinahasapprovedandissued326energysectorstandardsincludingDesignmethodofboreholestructureofgeothermalwell(Attachment1),theforeignlanguageversionof19energysect

9、orstandardsincludingCodeforSeismicDesignofHydraulicStructuresofHydropowerProject(Attachment2),andtheamendmentnoticeof3energysectorstandardsincludingCodeforSeismicDesignofHydraulicStructuresofHydropowerProject(Attachment3).Attachment:1.DirectoryofSectorStandards2. DirectoryofForeignLanguageVersionofS

10、ectorStandards3. DirectoryofAmendmentNoticeofSectorStandardsNationalEnergyAdministrationofthePeople,sRepublicofChinaNovember16,2021AttachmentI：DirectoryofSectorStandardsSerialnumberStandardNo.TitleReplacedstandardNo.AdoptedinternationalstandardNo.ApprovaldateImplementationdate97NB10792-2021CodeforCo

11、olingWaterSupplySystemsofHydropowerStations2021-11-162022-05-16ForewordAccordingtotherequirementofDocumentGNKJ2017No.52issuedbyNationalEnergyAdministrationofthePeoplesRepublicofChina,4tNoticeonReleasingtheDevelopmentandRevisionPlanofEnergySectorStandardsin2017,andafterextensiveinvestigationandresear

12、ch,summarizationofpracticalexperience,andwidesolicitationofopinions,thedraftinggrouphaspreparedthiscode.Thismaintechnicalcontentsofthiscodeinclude:generalprovisions,terms,designofcoolingwatersupplysystem,configurationofcoolingwatersupplysystemequipment,arrangementofcoolingwatersupplysystem,testingan

13、dacceptanceofcoolingwatersupplysystem.NationalEnergyAdministrationofthePeoplesRepublicofChinaisinchargeoftheadministrationofthiscode.ChinaRenewableEnergyEngineeringInstituteisresponsibleforitsroutinemanagement.EnergySectorStandardizationTechnicalCommitteeonHydropowerHydraulicMachinery(NEATC20)isresp

14、onsiblefortheexplanationofspecifictechnicalcontents.Commentsandsuggestionsintheimplementationofthiscodeshouldbeaddressedto:ChinaRenewableEnergyEngineeringInstituteNo.2Beixiaojie,Liupukang,XichengDistrict,Beijing100120,ChinaChiefdevelopmentorganizations:POWERCHINAKunmingEngineeringCorporationLimitedP

15、articipatingdevelopmentorganizations:ChinaThreeGorgesConstructionEngineeringCorporationPOWERCHINAChengduEngineeringCorporationLimitedChiefdraftingstaff:YAOJianguoZOUMaojuanLlUGongmeiWUSaiboZHANGHuiZHAOMingshengPANXuemeiWANGShenghuaMAXuemeiHEPengpengZHAOXianYUANXuanWUBaijieDENGHaifengReviewpanelmembe

16、rs:DAIKangjunZENGZhenlingHANLingliYOUChaoXUYiqunGOUDongmingZHOUZhenzhongZHANGHaoshengJIANGDengyunSUNWenbinCHENXiangdongCHENShunyiYUANLianJunZHANGQiangFUGuofengWANGJianhuaHEWencaiYUELeiContents1 GeneralProvisions12 Terms23 DesignofCoolingWaterSupplySystem44 ConflgurationofCoolingWaterSupplySystemEqui

17、pment104.1 PumpingEquipment104.2 PressureReducingandReliefEquipment124.3 HeatExchangeEquipment164.4 WaterFiltrationEquipment184.5 Piping,ValvesandAccessories204.6 AutomationandControlComponents224.7 Marking,Packaging,TransportationandStorage245 ArrangementofCoolingWaterSupplySystem266 TestingandAcce

18、ptanceofCoolingWaterSupplySystem306.1 TestandAcceptanceItems306.2 TestStandards,MethodsandMeans306.3 TestandAcceptanceResults31ExplanationofWordinginThisCode331.istofQuotedStandards341 GeneralProvisions1.0.1Thiscodeisformulatedtostandardizethedesign,equipmentconfiguration,arrangement,testandacceptan

19、ceofcoolingwatersupplysystemofhydropowerstations,andtoensurethesafetyandreliability,economyandrationalityofthecoolingwatersupplysystemofhydropowerstations.1.0.2Thiscodeisapplicabletothecoolingwatersupplysystemofnew,reconstructedandexpandedhydropowerstations.1.0.3Inadditiontothiscode,thecoolingwaters

20、upplysystemofhydropowerstationsshallalsocomplywiththecurrentrelevantstandardsofChina.2 Terms2.0.1coolingwatersupplysystemsystemwhichprovidecooling,lubricatingandoperatingwaterfortheoperationofelectro-mechanicalequipmentinhydropowerstations2.0.2watersupplybypumpwatersupplymodeinwhichthewaterpressurea

21、ndwaterquantityofthewatersupplysystemareguaranteedbythewaterpump2.0.3watersupplybygravitywatersupplymodeinwhichthewaterpressureandwaterquantityofthewatersupplysystemareguaranteedbythenaturalheadfromthewatersourcetotheoutlet.2.0.4watersupplybygravitywithpressurereducingdeviceonemodeofwatersupplybygra

22、vityinwhichthewaterpressureandwaterquantityofthewatersupplysystemareguaranteedbyinstallingpressurereducingdevice.2.0.5watersupplyfromheadcoverwatersupplymodeinwhichtheclearanceleakagewaterbetweentherunneruppercrownandtheheadcoveroftheFrancisturbineisusedascoolingwateroftheunit2.0.6secondarycirculati

23、onwatersupplywatersupplymodeofcoolingequipmentthroughtwocoldandheatexchangesinthewatersupplycircuit2.0.7compositewatersupplywatersupplymodecombiningtwoormorewatersupplymodesisadopted2.0.8unitwatersupplywatersupplymodeofeachunitforitsownsystemoperation2.0.9centralizedwatersupplywatersupplymodeinwhich

24、thewateristakenfromtwoormorecommonwaterintakesandwatersupplyequipment,andsuppliedtoeachwaterequipmentthroughthecommonpoolormainpipe3 DesignofCoolingWaterSupplySystem3.0.1Thedesignofcoolingwatersupplysystemofhydropowerstationshallincludethefollowingcontents:1 Providecoolingandlubricatingwaterforhydro

25、-generatorunit/pumped-storageunitanditsauxiliaryequipment.2 Providecoolingwaterforelectricalequipment.3 Providecoolingandlubricatingwaterforauxiliarymechanicalequipment.4 Providecoolingwaterforotherequipment.3.0.2Thecoolingwatersupplysystemshallmainlyincludewatersource,waterfiltrationequipment,pipen

26、etwork,valves,automaticcomponentsandprotectiondevices.Whenthewatersupplymodebypumpisadopted,thesystemcompositionshallalsoincludewatersupplypump.Whenthesecondarycirculatingwatersupplymodeisadopted,thesystemcompositionshallalsoincludeheatexchangeequipment.3.0.3Whenthefirefightingwateristakenfromcoolin

27、gwatersupplysystem,thedesignofcoolingwatersupplysystemshallmeettherequirementoffirefightingwaterconsumption.3.0.4Thecoolingwatersourceshallbereasonablyselectedaccordingtotherequirementsofwater-usedequipmentforwaterconsumption,waterpressure,watertemperatureandwaterquality,andincombinationwiththespeci

28、ficconditionsofthehydropowerstation,suchasthelocation,terrain,waterlevelandoperatingconditions.Theselectionofwatersourceshallmeetthefollowingrequirements:1 Thecoolingwatersupplysystemshallhavereliablemainwatersource.Inadditiontothemainwatersource,thereshouldbereliablestandbywatersourceorstandbywater

29、path.Themainwatersourceandstandbywatersourceshouldbeswitchedautomaticallythroughwaterpumps,electricvalves,etc.2 Thecoolingwatersupplysystemshallmeettherequirementsofequipmentwaterconsumption.Beforethedataprovidedbytheequipmentmanufacturer,thewaterconsumptionmaybeinitiallydeterminedreferredtothetheeq

30、uipmentwithsimilarheadandcapacitythathasbeenputintooperation,orpreliminaryestimatedaccordingtotheempiricalformulasorstatisticalcurves.Aftertheequipmentisordered,thewaterconsumptionshallbedeterminedaccordingtotheequipmentmanufacturers,requirements.3 Thewaterpressureofcoolingwatersupplysystemshallbede

31、terminedcomprehensivelyaccordingtothehydraulicpressuredropofthecoolers,thehydraulicpressuredropofthepipelinesystemandthewaterpressureattheoutletofpipeline.Themaximumworkingpressureattheinletofaircoolerandbearingcoolershallbedeterminedaccordingtotheactualdesignconditions.Themaximumworkingpressureofhy

32、dro-generatorunitshouldnotexceed0.6MPa,andthatofpumped-storageunitshouldnotexceed2.5MPa.4 Whenthereareaquaticorganismsinwatersourcethataffectthereliabilityofwatersupply,correspondingmeasuresshallbetaken.5 .0.5Thestandbywatersourceofcoolingwatersupplysystemmayadoptthefollowingforms:1 Whentheunitwater

33、supplymodeisadopted,thecontactpipemaybesetupformutualstandby.2 Whenthepowerhouseisclosetothereservoir,thewaterinfrontofthedammaybetakenasstandby.3 Whenthemodeofwatersupplyfromheadcoverisadopted,thetailwaterintakebywaterpump,thewatersupplyofintermediatepool,andthewatersupplybygravitywithpressurereduc

34、ingdevicemaybeusedasstandby.1.1 .6Theinletwatertemperatureoftheaircoolersandbearingcoolersofhydro-generatorunit/pumped-storageunit,andthecoolersofwater-cooledtransformershouldbedesignas28.Whenthetemperatureofactualwatersourceexceeds28,theinletwatertemperatureshallbedeterminedaccordingtotheactualmaxi

35、mumwatersourcetemperature.Whenthemaximumtemperatureofwatersourceislowerthan20alltheyearround,theinletwatertemperatureshouldbedesignedas20.1.2 .7Thefollowingwatersupplymodesmaybeselectedascoolingwatersupplyschemeandshallbedeterminedthroughtechno-economiccomparison:1 Watersupplybypump.2 Watersupplybyg

36、ravity.3 Watersupplybygravitywithpressurereducingdevice.4 Watersupplybypumpplusintermediatewaterpool.5 Watersupplybygravityplusintermediatewaterpool.6 Watersupplyfromheadcover.7 Secondarycirculatingwatersupply.8 Compositewatersupply.3.0.8Whentheworkingheadofhydropowerstationis15mto60m,themodeofwater

37、supplybygravityshouldbeadopted.Whentheworkingheadis50mto160m,themodeofwatersupplybygravitywithpressurereducingdeviceshouldbeadopted.Whentheworkingheadislessthan15mormorethan160m,themodeofwatersupplybypumpshouldbeadopted.Whenotherwatersupplymodesareselected,techno-economiccomparisonshallbemade.3.0.9W

38、henthewaterpressureandwaterflowofheadcoverpressurereliefpipeofFrancisturbinemeettherequirementsofunitcoolingwatersupply,themodeofwatersupplyfromheadcovermaybeadopted.3.0.10Whenthewaterqualityofpowerstationispoorortheequipmentrequirementsarehigh,themodeofsecondarycirculatingwatersupplymaybeadopted.3.

39、0.11Iftheheadofpowerstationvarieswidely,andthesinglewatersupplymodecannotmeetthewaterpressureandwatervolumerequirementsorisuneconomical,thecompositewatersupplymodemaybeused.3.0.12Incaseoneofthefollowingconditions,themodeofwatersupplyfromintermediatepoolmaybeusedaftertechno-economicdemonstration:1 Th

40、ewaterlevelofreservoirchangesgreatly,anditisdifficulttoobtainstablewaterpressure.2 Ifsedimentconcentrationinwateristoohighandsedimentationtreatmentisrequired,thesedimentationbasinmayalsobeusedasintermediatepool.3.0.13Whenthemodeofwatersupplyfromintermediatepoolisselectedforcoolingwatersupplysystem,t

41、hecentralizedwatersupplysystemmaybeused.3.0.14Theintermediatepoolshallbeequippedwithdrainpipe,drainvalveandoverflowchannel,andanti-freezingmeasuresshallalsobeprovidedincoldareas.Theeffectivevolumeofintermediatepoolshallensurecontinuouswatersupplyforatleast15minutes.Ifitisalsousedasfirefightingwaterp

42、ool,itshallalsomeettherequirementsoffirefightingwaterconsumption.3.0.15Thesystemofwatersupplybypumpshallmeetthefollowingrequirements:1 Thewatersupplybypumpshouldbeunitwatersupplysystem,andeachunitshouldbeequippedwithoneservicepumpandonestandbypump.2 Whenthecentralizedwatersupplysystemisadopted,thenu

43、mberofservicepumpsshouldbeintegralmultipleofthenumberofunits,andthenumberofstandbywaterpumpsmaybe1/3to1/2ofthenumberofservicepumps,butshallnotbelessthan1.3 .0.16Forthepowerstationinsediment-ladenrivers,thecoolingwatersupplysystemshouldhavethefunctionofpositiveandnegativewatersupplyexceptforthesecond

44、arycirculationcoolingwatersupplysystem.4 .0.17Thewatersupplyofmainshaftsealshallmeetthefollowingrequirements:1 Thewatersupplyofmainshaftsealshallhavereliablemainwatersourceandstandbywatersource.2 Thecoolingwatersupplyandmainshaftsealwatersupplyofshouldformonewatersupplysystem.3 Ifthewaterqualityofwa

45、tersupplysystemcannotmeetthewaterqualityrequirementsofmainshaftseal,waterfiltrationequipmentshouldbeequippedforthemainshaftseal.3.0.18Thewaterpumps,pipenetworkandvalvesshallmeetthefollowingrequirements:1 Itshallbeensuredtomeettherequirementsoftotalwaterconsumptionandwaterpressureofallequipmentwithin

46、therangeofvariousoperatingheads,tailwaterlevelandtailwaterpressure.2 Thelayoutofcoolingwatersupplynetworkandtheconfigurationofvalvesshallensurethattheflowdistributionofeachbranchpipelinemeetstherequirementsofthesystemdesign,andthepressuredistributionofeachpipelinenodeshallbereasonable.3.0.19Forthewa

47、tersupplysystemtakingwaterfromthespiralcase,penstockorlongdrafttube(tunnel),theinfluenceofpressureriseontheequipmentduringthetransientprocessofunitshallbeconsidered.3.0.20Whenthewatersourceofpumpistakenfromthetailwater,airshallbepreventedfromenteringthewatersupplypipeline.3.0.21Whenthewaterintakeofp

48、umpandthedrainageoutletarearrangedonthesamechannel,thedistancebetweenthewaterintakeandthedrainageoutletshallpreventfromthermalshortcircuit.3.0.22Theoutletelevationofwatersupplysystemincoldareasshouldbebelowthemaximumpossibleicethicknessorotheranti-freezingmeasuresshouldbetaken.3.0.23Thecoolingwatersupplysystemofunitshallbeabletorealizetherequirementsofautomaticinputandautomaticexitwhen