储罐制作作业指导书

CSPCNANHAIPETROCHEMICALSPROJECTCSPC南海石化项目FABRICATIONANDERECTIONOFTANKWORKINSTRUCTION储罐制作及安装作业指导书WORKINGINSTRUCTION：WI-8710-8100-2006SEPCOElectricalPowerConstructionCorporation山东电力基本建设总公司REVDATEREASONFORISSUEBYCHK’DREVIEWAPPRA22JUL2003IssueforReviewandapprovalWFLHJCHYDPS0024AUG2003IssueforimplementationWFLHJCHYDPS0112SEP2003IssueforimplementationWFLHJCHYDPS022NOV2003IssueforimplementationWFGHMZXSDPRevisionInformation修改记录Rev版次SectionNo.章节号BSFreviewrecordNo.BSF审查单序号Descriptionofmainchanges主要修改内容025SectionsgAttachmentBSEPCO2QUALITYSYSTEMORGANIZATIONCHARTFORFABRICATIONANDERECTIONOFTANK”增加了“SEPCO2储罐制作与安装的质量管理组织结构”3.1Sepco’sworkingscopedon’tconflictwithsepco2’s;BecauseweadoptthreegradecheckingbeforeacceptanceSepco’s工作范围与Sepco2’s不冲突，因为我们采用的是三级验收。55Addsafety,welding&surveyprocedures,issuedbySEPCO增加了SEPCO安全、焊接和焊接程序AttachmentC6Add”LAYOUTJOBSITEOFSTORAGETANK

”增加了“储罐施工现场布置图”9.3.77Add”cleaningoil,greaseandcontaminantontheplatesurfacewithfreshwaterbeforeblasting.”增加了“在抛丸前用清水清洁钢板表面的油，油脂及污染物。”9.3.88Add”SurfacecleannessandsurfaceprofileshouldberelativelyinspectedwithphotointheGB8923”rustinessandantirustgradeofsteelplatesurfacebeforeblasting”增加了“表面清洁度和轮廓根据GB8923《涂装前钢材表面腐蚀等级和除锈等级》所规定的图片进行对照观察检查”9TheDFTiscompliedwithDEPrequiredsystem!!!Thepaintsystemnumberis15inthelatestrevisionsofthecoatingtheDEPandtheSP,butstoragetank’ssystemnumberis1.210Delete”andantisepsis”删除了“andantisepsis”AttachmentD111213141516Add”JSA”10.2.1010.3.2310.4.17Add”Weldingdetailsee12section.”增加了“焊接细节见12节”10.2.7Add“Onlyweldersqualifiedtoweldfullpenetrationfromonemaymakeweldedonesidefullpenetration.”增加了“只有单面焊透合格的焊工才能进行单面焊透。”10.2.8Add”ElectrodesandweldingparametersshallbethesameasrequiredbytheappropriateWPSandPQRs.”增加了“焊条与焊接参数应该与WPS和PQRs的要求一致。”12.1.1Add“ASMEⅨ”12.1.2Add“AlistofqualifiedweldersshallbesubmittedtoPMCforapprovalbeforetheconstructionoftank.”增加了“储罐施工前，合格的焊工应报PMC批准。”12.4.2.7Reinforcingpadsortestinghavementionedin12.2section.加强板试验已经在124.2.7节中说明。11.4Add”Allnozzlesrequiredtobefullpenetrationwelds.”增加了“所有的管口要求全熔透焊接。”16.3Add“ErectioninaccordancewithGB128-90orapplicablecontractrequiredcode.Manydifferentrequirementssoshouldusethemoststrictcode.”增加了“安装按照GB129-8-90或可适用的合同规定的规范，许多不同的要求被用时采用最严格的标准。”14.8Add”withtheodolite”增加了“用经纬仪”0215.8Delete“Theunpaintedpartsshallbeprotectedfromrusting.”删除了“并对未涂漆部位进行防锈保护。”Add”Theunpaintedpartsshallbegrindedaftertheweldjointhasbeencompleted.”增加了“未刷漆部分在焊接完后用磨光机进行打磨处理”16.1Add”PR-8710-8100-0056Rev.01QualityInspection”增加了“PR-8710-8100-0056Rev.01《质量验收》”AttachmentEAdd“WeldingProcedureSheet”增加了“焊接工艺评定“10.3.9Add”Whentheeachlayershellplateinstalls,movedshellplateofover2mshouldnotbeassembledandweldedinorderthatpersonnelgoawayandcomeinstartconstructionprocess.Afterthetankispromotedabove600mm,Expansionringofthetanksupportedwithawood,thenthemovedshellshallbeassembledandweild.,onebyoneinorderthetypeprocess.”增加了“在每层壁板安装时留一张2m以上的壁板不组对焊接以便在施工过程中人员出入，等储罐被提升600mm以上时，胀圈用道木支撑，然后组对此壁板并进行焊接，依次类推。”TheWIisWI-8710-8100-0013cREV01’supgrade.此作业指导书是WI-8710-8100-0013cREV01的升版.目录TABLEOFCONTENTS1PURPOSE目的2SCOPE范围3RESPONSIBILITIES职责4PROJECTSUMMARIZATION工程概述5WRITINGREFERENCE编制依据6PRIMARYCONSTRUCTIONSCHEME主要施工方案7PROCESSFLOW工艺流程8ERECTIONPROCESSREQUIREMENT安装工序要求9TANKPREFABRICATION罐体预制10TANKERECTION罐体组装11ACCESSORYINSTALLATION附件安装12WELDANDWELDINGLINEINSPECTION焊接及焊缝检验13GEOMETRICDIMENSIONANDDIMENSIOMNINSPECTIONOFTANKS罐体的几何尺寸和尺寸检验14WATERTESTING充水试验15ANTICORROSIVEPAINTING防腐涂漆16CONSTRUCTIONACCEPTANCE工程验收17LABORFORCEPLAN劳动力计划18EQUIPMENTFORCONSTRUCTION施工机具使用计划ATTACHMENTA:CALCULATIONONHOISTINGVERTICALPOST附录A：提升立柱计算说明书ATTACHMENTB:SEPCO2QUALITYSYSTEMORGANIZATIONCHARTFORFABRICATIONANDERECTIONOFTANK附录BSEPCO2储罐制作与安装的质量管理组织结构ATTACHMENTC:LAYOUTJOBSITEOFSTORAGETANK附录C：储罐施工现场布置图ATTACHMENTD:JOBSAFETYANALYSIS附录D：工作安全分析ATTACHMENTE:WELDINGPROCEDURESHEET附录E焊接工艺评定1.PURPOSE目的Toprovidespecificationandrequirementforoil/watertankfabricationinCSPCNanhaiPetrochemicalsProject,Steam&PowerPlantProject.Thisinstructioncanactasadirectioninmakinganderectingtankstoensuretheprojecttocompleteontimeandwithgoodquality.在于制订南海石化汽电联产项目油罐、水箱制作的规范及要求，作为以后制作及安装的指导，确保工程高质量的按期完工。SCOPE范围Thisinstructioncompliestothefabricationanderectionofoil/watertanksinCSPCNanhaiPetrochemicalsProject,Steam&PowerPlantProject(exceptingforthermalinsulationandantisepsis).本指导书适用于南海石化汽电联产项目油罐、水箱的制作及安装（不包括保温）。RESPONSIBILITIES职责3.1SEPCO2isresponsibleforthefabrication,erection,inspectionandtestingofoil/watertanks.山东电建二公司负责油罐、水箱的制作及安装、检验和试验。3.2SEPCO1isresponsiblefortheexcavationfabrication,inspectionandtestingoftanksfoundation.山东电建一公司负责油罐、水箱基础开挖、制作、检验和试验。3.3SEPCOisresponsiblefortheinterfacecoordinationandqualitycheckandacceptance.基建总公司负责接口协调和质量验收。PROJECTSUMMARIZATION工程概述4.1PROJECTBRIEFINTRODUCTION工程简介8oiltanks,2desaltingtanksand2coagulatingtanksneedtobeerectedonsiteforCSPCNanhaiPetrochemicalsSteam&PowerProject.Themaximumcapacityoftanksis8350m3.Watertanksarenormalpressurecontainers,whichstructuralformisverticalcylindersteelweldeddomerooftank.GradeofsurfacefinishisSa.Insideshellneedanepoxylining,whiletheoutsideistobepaintedforprotection;Oiltanksarelowpressurecontainers,whichstructuralformisverticalcylindersteelweldeddomerooftank.GradeofsurfacefinishisSa.Insideshellrequiresafirstcoat,whileoutsiderequiresthermalinsulationafterprimer,inter-coatandtopcoat.南海石化汽电联产项目现场安装有储油罐8座、除盐水箱2座、凝结水箱2座，罐的最大容积为8350m3，其中水箱为常压容器，结构形式为立式圆筒钢制焊接储罐，顶部为拱顶，除锈等级为Sa，罐壁内侧为环氧树脂衬里，外侧涂漆防护；油罐为低压容器，结构型式为立式圆筒钢制焊接储罐，顶部为拱顶，除锈等级为Sa，罐壁内侧为一遍底漆，外侧涂底、中、面漆后保温防护。4.2PROJECTITEMS工程项目PROJECTITEMSSCHEDULE工程项目一览表序号ITEM名称NAME代号CODE规格SIZE（直径*高度）DIA.*HEIGHT容积CUBAGE（m3）重量WEIGHT（kg）数量QUA罐顶形式ROOFFORM1储油罐OILTANKT8691φ20*206283126，5001带肋拱顶DOMEWITHRIB2储油罐OILTANKT8682φ22.5*218350192，0001带肋拱顶DOMEWITHRIB3储油罐OILTANKT8681φ22.5*218350192，0001带肋拱顶DOMEWITHRIB4储油罐OILTANKT8683φ22.5*218350192，0001带肋拱顶DOMEWITHRIB5储油罐OILTANKT8662φ20*206283158，0001带肋拱顶DOMEWITHRIB6储油罐OILTANKT8661φ20*206283158，0001带肋拱顶DOMEWITHRIB7储油罐OILTANKT8671φ17.5*14336770，0001带肋拱顶DOMEWITHRIB8储油罐OILTANKT8651φ10*13102131，7001带肋拱顶DOMEWITHRIB9除盐水箱DESALTINGTANKT8441Aφ21.2*12.24084113，0001带肋拱顶DOMEWITHRIB10除盐水箱DESALTINGTANKT8441Bφ21.2*12.24084113，0001带肋拱顶DOMEWITHRIB11凝结水箱COAGULATINGTANKT8471φ16*12.2230969，0001带肋拱顶DOMEWITHRIB12凝结水箱COAGULATINGTANKT8481φ22.7*14.65655137，0001带肋拱顶DOMEWITHRIB4.3Buttjoint(fullymelt)willbeadoptedforannularplatesandlapjointforbottomcenterplates;buttjoint(weldinglinefullymelt)beadoptedforshellplates,andlapjointfortankroof,buttjointforeveryplatepart.Roofformisdomeroofwithrib.罐底板边缘板采用对接接头（全部熔透），中幅板采取搭接接头；罐壁板采用对接接头（全熔透焊缝）；罐顶板采取搭接接头,每一等分板间采用对接接头。罐顶的结构形式全为带肋拱顶。4.4Thereeling,sandblasting,paintingofsteelplatesshallbefinishedinworkshop.Erection,includingprocessofassembly,weld,inspection,testing,thermalinsulationandantisepsis,willbedoneatjobsiteerectinglocation.钢板的卷制、喷砂、涂漆在车间完成。储罐在现场的安装位置进行安装，现场安装包括组对、焊接、检验、试验、保温、防腐等工序。5.编制依据WRITINGREFERENCEConstructiondrawingsandrelateddocument施工图纸及相关文件GBJ128-90Construction,CheckandAcceptanceSpecificationofVerticalCylinderSteelWeldedOilTankGBJ128-90《立式圆筒形钢制焊接油罐施工和验收规范》DEP34.51.01.31-CSPCStandardVerticalTanks–Selection,DesignandFabricationDEP34.51.01.31-CSPC《标准立式油罐-选择、设计和制作》DEP30.48.00.31-CSPCPaintingandCoatingofNewEquipmentDEP30.48.00.31-CSPC《新施工项目的涂漆和覆层》DEP64.51.01.31-CSPCStandardVerticalTanks—FieldErectionandTestingDEP64.51.01.31-CSPC《标准立式油罐-安装和实验》DEP80.47.10.31-CSPCSystem&FacilityFireProtectionDEP80.47.10.31-CSPC《系统和设备的防火保护》DEP30.48.70.30-CSPCGlassLinerofFacilityandPipingDEP30.48.70.30-CSP《设备和管道的玻璃衬里》ConstructionQualityInspectionPlanQC-8420-8600-0001施工质量检验计划QC-8420-8600-0001g．热保温6.PRIMARYCONSTRUCTIONSCHEME主要施工方案6.1Constructionscheme:Accordingtotheconstructioncharacteristicsandfieldenvironmentalrequirement,shellplatesandbracesofoil/watertanksshallbeprefabricatedintheplantoffsitebeforetheirassembly(i.e.bending,derustingbysandblastingandpaintingofshellplatesandbraces.)first,thenbetransportedtojobsiteforassembly.Reverseassemblymethodisadopted,thatistosay,tankwillbeassembledfromroofdownwardtobottom.Theerectionsequenceis:tankbottom,roofsheeting,tank,facilities,facilitiesoutsidethetank,andatlastrailingplatform.Theassemblyshallbedonewith25Thydraulictrackcrane,andchainfallshallbeadoptedforerection.Scaffoldsshallbebuiltbothinsideandoutsideoftankforerectionprocess.施工方案：根据油罐、水箱的施工特点和现场环保需要，此油罐、水箱的壁板及支撑组装前，在安装现场外的工厂内先进行预制（即壁板及支撑的折弯、喷钢砂除锈及油漆），再运输到安装现场进行组装，组装时采用倒装法，也就是自罐顶到底板的装配、制造顺序；安装顺序为：罐底、顶板、筒体、设备、外壳外部设备、栏杆平台；组装采用25t汽车吊，安装采用倒链提升；安装时罐内外搭设脚手架.6.2Erectionplatform:Bottomplatesofoil/watertanksactastemporaryworkplatformforshellplatesassembly.组装场地：油罐及水箱底板作为临时平台，用作壁板组装。7.PROCESSFLOW工艺流程Processflowchartofoil-tankfabricationanderection:油罐制作安装工艺流程图：Workshopprefabricationprocessflowchart:车间预制的工艺流程图：Drawingsjointcheckup--------Receivedmaterialinspection--------Constructiontechnologydeliver----------layingoffandgrooveprocess---------Reeling---------SandBlasting----------PaintingandNumbering--------Transportedtojobsite图纸会审-------进厂检验-------施工技术交底------下料及坡口加工--------卷板------喷砂-------涂漆并编号-------运输到现场Jobsiteerectionprocessflowchart:现场安装流程图：constructionpreparation----acceptanceoffoundation------layingbottomplates-----weldofbottomcenterplates-----assemblyandweldoftopplate-----assemblyandweldofcurbangle----assemblyoftemporarycolumnfordomeroof----assemblyandweldofroofplates----assemblyandweldofribsforroof-----erectionofhoistingverticalcolumn-----hoistingshellplates----assemblyandweldofthesubsequentcourse-----finishedweldinspection-----filletweldshellplatestobottomplates-----weldshellplatestoannularplates----vacuumsideleakingofseamsonthebottomplates----acceptanceofgeometricdimension-----erectionoffittings-----erectionofstairplatform-----fillingwatertesting----anticorrosionandthermalinsulation----acceptanceofthefinishedconstruction施工准备-----基础验收-----铺设底板-----中幅板焊接-----最上层壁板装配、焊接------包边角钢组对、焊接-----临时拱顶支柱组装-----罐顶板装配、焊接-----罐顶肋板装配、焊接-----提升立柱安装------提升壁板------装配、焊接下一层壁板-----依次提升组焊其他各层壁板------罐壁焊缝检验------最下层壁板和底板的角焊缝焊接------中幅板与边缘板焊接-----底板焊缝真空测漏-----罐体几何尺寸验收-----附件安装-----梯子平台安装-----充水试验-----防腐、保温-----竣工验收ERECTIINGPROCESSREQUIREMENT安装工序要求8.1CONSTRUCTIONPREPARATION施工准备8.1.1Drawingsshallbecheckedupbyrelatedpersonnel.Particularattentionshallbepaidtocheckingthegeneraldimensionandjunctionsdimensionoftanks.Learntheusageandbasicworkingprincipleofoil/watertank.Makecleartechnicalstandard&requirementandprimaryconstructionworkloadaccordingtotheacceptancespecification.Intheeventanymisunderstandingormistakeonthedrawingsisdiscovered,theproblemshallbereportedandsolvedbeforeconstruction.熟悉图纸，组织有关人员进行图纸会审。重点审核油罐及水箱的整体尺寸及连接点尺寸，弄清油罐及水箱用途及基本工作原理，并且对照验收规范，弄清技术标准及要求和主要工程量，图纸设计不清或错误，应及时反映，落实清楚后方可施工。8.1.2Organizetherelatederectingpersonneltoprovidetechnologydelivery.Projectsummarization,timelimit,primaryconstructionworkload,primarytechnologyrequirements,constructionspecificationsandstandards,constructionprocessandmethods,theproblemstowhichparticularattentionshallbepaid,keypointsofthedrawingsandqualitycontrollingpointandsafetyprecautionsshallbeinterpreted.组织有关安装人员进行技术交底。交代工程概况、施工工期及主要工程量；交代主要技术要求和执行的规程规范及标准；交代施工顺序及施工方法，指出应注意的问题和有关处理方法；指出图纸中的关键之处，指出质量控制点；交代安全注意事项等。8.1.3Compiletoolingmaterialplanandstarttostock.编制工装材料计划并备料8.1.4Constructionequipment&toolsandfieldpreparation:施工机具、施工场地准备：Receivedliftingfacilityinspectionbeforeenteringsite.起重设备进厂检查。Toolsroom,oxygenethyneroomandelectricweldmachineswitchboarddistribution.现场工具室、氧气乙炔房及电焊机配电盘布置。ManualManualelectricweldmachineandotherfacilitiesarrangementpreparation.电焊机等其它设备工器具准备布置。Depositarydistributionformaterials,wastesandfinishedproducts.原材料、废料及成品堆放场地布置。Employeetemporaryrestroom,electrodesroomanddryingroomdistribution.职工临时休息室、焊条库及烘干室布置。Others.其它8.1.5Preparationfortools,instruments,auxiliaryfacilitiesandsafetyprotectingequipment:Toolsandinstrumentsofalltypesshallcomplywiththeconstruction&safetyrequirementandgaugesshallbeinspectedforacceptance.Allofthesafetyfacilitiesandequipmentshallcomplywithappropriatespecifications.工器具量具辅助设施安全防护用品等的准备：各种工器具符合施工及安全要求；各种量具经检验合格；安全设施及安全用品符合安全规定。8.2Designandfabricationoftoolingsystem工装设计制作Designandfabricationofspecialequipmentforhoistingtankwalls筒壁提升专用工具设计制作。Designandfabricationofspecialsupportforshellplatesarrangement壁板放置专用支架设计制作。Designandfabricationofspecialtoolingsystemforsettlingtankwallsreinforcingringsintoplace筒壁加强环就位专用工装设计制作。8.3Materialsinspectionbeforeenteringthefactory材料入场检验8.3.1Carbonsteelplatesandsectionsshallconformtotheacceptedstandardsofthecountriesinwhichthetanksaretobefabricatedorthesteelistoberolled.碳钢板和附件应符合储罐的制作和钢板卷制的国家验收标准。8.3.2Thesteelshallcontainnotmorethan0.23%carbon,0.05%sulphurand0.05%phosphorus.钢材中各成分含量C≤0.23%，S≤0.05%，P≤0.05%。8.3.3Thesteelshallhaveaguaranteedminimumultimatetensilestrengthofatleast363N/mm2andamaximumultimatetensilestrengthofnotmorethan510N/mm2.Thesteelshallhaveaguaranteedyieldstrengthofatleast206N/mm2.Thesteelshallhaveanelongationnotlessthan22%.钢材应保证最小极限抗拉强度至少为363N/mm2且最大极限抗拉强度不超过510N/mm2，屈服强度至少为206N/mm2，不小于22%的延展性。8.3.4Tankshellplatesandbottomannularplatesshalldisplayadequatenotchtoughness,asshownbelow:储罐的壳体板和底部环型板应有足够的切口韧性，表示如下：Platethickness板厚（mm）Ultimatetensilestrength极限抗拉强度（N/mm2）MinimumCharpy-Vvalue(J)最小却贝V型切口值（J）Testtemperature(°C)实验温度（℃）≤12.5IMPACTTESTSNOTREQUIRED无要求冲击实验>12.5≤43027+20>12.5>43041-58.3.5Mechanicaltesting机械测试8.3.5.1Mechanicaltestingisnotrequiredforroofandbottomplatesforwhichthethicknessisdeterminedforpracticalreasonsandnotbystressconsiderations.由于顶部和底部板的厚度由实践理论确定且不考虑压力，因此力学实验对顶部和底部板不要求。8.3.5.2Forshellplatesandforthebottomannularplates,testsshallbemadeonspecimenstakenfromeachplatethicknesswithafrequencyofonetestper25000kgofsteelorpartthereof.对于壳体板和底部环型板，用每25000kg的钢材做一个实验的频率对每一个厚度的板进行抽样实验。8.3.6Millcertificatesshallshowallthepropertiesofmaterialsguaranteedbyitsspecificationandanyadditionalrequirements.工厂证明书表明了通过规范及一些附加要求而保证的材料的所有特性。8.3.7StructuralboltsshallcomplywithGB123,grade8.8.结构螺栓遵从GB123，8.8级罐体预制TANKPREFABRICATION9.1TEMPLETPREFABRICATION样板预制9.1.1Thelengthofarctempletshallbemorethan2.5m.弧形样板长度应大于2.5m。9.1.2Onestraighttempletshallbeusedtotesttheconvexandconcavecurvatureoftankbottomandwall,withlengthnolessthan1m.直线样板一个：用于检查罐底和罐壁的凸凹度，其长度不小于1米。9.1.3Templetshallbemadeofδ=0.75mmgalvanizedsheetiron.样板用δ=0.75mm镀锌铁皮制成。9.2TANKSBOTTOMPLATEPREFABRICATION罐底板预制9.2.1Alignmentdrawingsshallbemadeaccordingtothedesignrequirementsandactualspecificationsofsteelplatesbeforebottomplateprefabrication.Diameteroftheplateshouldbeamplifiedby0.1%~0.2%ofdesigneddiameterinordertocompensateweldshrinkofbottomplateinordertocompensateweldshrinkofbottomplate.(Conecurvatureofbottomplatehasbeentakenintoconsideration).底板预制前应根据设计要求及实际钢板规格绘制排板图，排板直径宜按设计直径放大0.1%~0.2%,以补偿底板的焊接收缩（此已考虑了底板的锥度）。9.2.2Accordingtothealignmentdrawings,asemiautomaticcuttingmachineshallbeusedforcuttingplates.Thecuttingmachinecanalsobeusedtomakegrooveinarcannularplates.按照排版图，用半自动切割机进行下料，对于弓形边缘板应用半自动切割机打坡口。9.2.3Afterfinishedcuttingplates,hoistthebottomplateontoanabrasiveabrasiveconveyerbeltforremovingrust.将下好的底板，吊至抛丸机传送带上，进入抛丸机抛丸除锈。9.2.4Blowawaydustandironpowderonsteelplatesafterbeingprocessedinanabrasiveabrasivebyusinganair-compressor.利用空压机压力风，吹净抛丸后钢板上的尘土及铁粉。9.2.5Tankbottomshallbespraypaintedwithzinc-richepoxyprimerbyusingtheairlesssprayequipment.Dryfilmthicknessshallbe25um.利用无气喷吐机对罐底喷底漆，底漆为环氧富锌底漆，干膜厚度为25um。9.2.6

CheckofdryfilmthicknessshallcomplywithGB50205-2001CODEFORACCEPTANCEOFCONSTRUCTIONQUALITYOFSTEELSTRUCTURES.Dryfilmthicknessshallbecheckedwithdryfilmthicknessmeter.Eachcomponentforexamining5places,everywhereis3averagevalueofdryfilmthicknessformutuallybeingapartfrom50mmmeasuringpoints.Dryfilmthicknessshallbecheckedwithdryfilmthicknessmeter.Eachcomponentforexamining5places,everywhereis3averagevalueofdryfilmthicknessformutuallybeingapartfrom50mmmeasuringpoints.干膜厚度的测量遵循GB50205-2001《钢结构工程施工质量验收规范》。利用干膜测厚仪检查油漆干膜厚度。每个构件检测5处，每处的数值为3个相距50mm测点涂层干漆厚度的平均值。利用干膜测厚仪检查油漆干膜厚度。每个构件检测5处，每处的数值为3个相距50mm测点涂层干漆厚度的平均值。9.2.7Paintingshallnotbepermittedintheareaof50mmaroundtheweldinglineonbottomplate.底板的现场焊接焊缝周围50mm范围内不允许刷漆。9.2.8Bottomplateswillbenumberedaccordingtoalignmentdrawingsafterpainthasbeendriedadequately.Numberingmethodisasfollowing:Tanknumberpluserectionsequencenumber.待油漆充分干燥后，按照排版图对底板进行编号，具体编号方式如下：储罐编号+安装序号9.2.9Bottomplatesshallbepiledupandtransportedaccordingtoerectionsequenceafteritsnumbering.编号完毕后，按照安装顺序摆放、运输。9.2.10Inequableclearancesshallbeadoptedforbuttjointsinarchedannularplates.Outboardclearanceshallbe6-7mmwhileinboardclearanceshallbe8-12mm.弓形边缘板的对接接头，宜采用不等间隙。外侧间隙宜为6~7mm；内侧间隙宜为8~12mm。9.2.11Widthofbottomcenterplateshallnotbelessthan1000mmandlengthshallnotbelessthan2000mm.中幅板的宽度不得小于1000mm；长度不得小于2000mm；9.2.12Distancebetweenanytwoadjacentweldinglinesinbottomplatesshallnotbelessthan200mm.底板任意相邻焊缝之间的距离，不得小于200mm。9.2.13Deviationofdimensiontoleranceofarchedannularplatesshallbeinaccordancewithrequirementsinthefollowingform:弓形边缘板的尺寸公差允许偏差，应符合下表的规定。弓形边缘板尺寸允许公差PERMITTEDTOLERANCEOFARCANNULARPLATESDIMENSION测量部位measuredpoints允许偏差（mm）toleranceheightAB、CD长度widthAC、BD、EF宽度differenceofdiagonals|AD-BC|对角线之差±2±2≤39.3SHELLPLATESPREFABRICATION壁板预制9.3.1ShellplatesalignmentdrawingshallbemadeaccordingtothedesigneddimensionandGB128beforetheircuttingprefabrication.壁板在切割预制前，应按设计图纸尺寸及GB128进行排版。9.3.2Allsteelplatesshallberecordedandtabbedaccordingtoarrangementandparts;allplatesshallbepiledupin-orderforeasyerection.所有钢板下料时应按层次，部位做好记录并标号，堆放时应按安装顺序放之，以便安装就位。9.3.3Lineoutfigureonsteelplatesaccordingtoalignmentdrawingstomaketheirdimension(diagonal,lengthetc.)tocomplywithrequirements.Makegroovewithasemiautomaticcutteraftertheplateshavebeencheckedup.按照排版图，在钢板放样划线，使其对角线及长宽等尺寸符合规范要求，校验合格后，用半自动切割机下料打坡口。9.3.4Rollsteelplateswitharollingmachineandtheradianshallbecheckedreferringtoanarctemplettomakesureitcanmeetrequirementsindrawings.利用卷扳机卷板，弧度利用弧形样板检查，使其符合图纸要求。9.3.5Straightedgeofthickplatesshallbecutwithasemiautomaticcutterafterrolling.Andgrooveshallbemademanually.较厚壁板卷制后，其直边部分，用自动切割机割除，并用手工打坡口。9.3.6Grooveofthinplatesshallbemadewithasemiautomaticcutterbeforereeling.Andthentheplateswillbeprocessedonareelingmachinetobendtheiredgestoarequiredradianbyusinganarctemplet.较薄壁板，卷制前先用半自动切割机打坡口，然后在卷板机上利用弧形模板，将钢板两端卷成所需弧度。9.3.7cleaningoil,greaseandcontaminantontheplatesurfacewithfreshwaterbeforeblasting。在抛丸前用清水清洁钢板表面的油，油脂及污染物。Havingbeenrolled,theplateswillbeliftedontoanabratorconveyerbeltforremovingrust.将卷制好的壁板，吊至抛丸机传送带上，进入抛丸机抛丸除锈。9.3.8Blowawaydustandironpowderonsteelplatesafterbeingprocessedinanabrasivebyusinganair-compressor.利用空压机压力风，吹净抛丸后钢板上的尘土及铁粉。SurfacecleannessandsurfaceprofileshouldberelativelyinspectedwithphotointheGB8923”rustinessandantirustgradeofsteelplatesurfacebeforeblasting.表面清洁度和轮廓根据GB8923《涂装前钢材表面腐蚀等级和除锈等级》所规定的图片进行对照观察检查。9.3.9Shellplatesshallbespraypaintedwithprimerbyusingtheairlesssprayequipment.Afterdryfilmthicknessofprimercoatreachesto75um,inner-coatwillbeaddedtoathicknessof75um75umafteritisdry.利用无气喷吐机喷底漆，待底漆干燥且干膜厚度达到75um后，再喷中间漆，并使中间漆干燥后，干膜厚度达到75um。9.3.10Dryfilmthicknessshallbecheckedwithdryfilmthicknessmeter.Eachcomponentforexamining5places,everywhereis3averagevalueofdryfilmthicknessformutuallybeingapartfrom50mmmeasuringpoints.利用干膜测厚仪检查油漆干膜厚度。每个构件检测5处，每处的数值为3个相距50mm测点涂层干漆厚度的平均值。9.3.11Paintingshallnotbepermittedintheareaof50mmaroundtheweldinglineonshellplate.壁板的现场焊接焊缝周围50mm范围内不允许刷漆。9.3.12Shellplateswillbenumberedaccordingtoalignmentdrawingsafterpainthasbeendriedadequately.Numberingmethodisasfollowing:Tanknumberplusshellcoursenumberplusringerectionsequencenumber.待油漆充分干燥后，按照排版图对壁板进行编号，具体编号方式如下：储罐编号+壁板层编号+环向安装序号9.3.13Shellplatesshallbepiledupandtransportedaccordingtoerectionsequenceandshallbeputonspecialmoldinsealedvehiclesduringtransportationtomakethemfirmandreliable.编号完毕后，按照安装顺序摆放、运输，壁板运输时，放置专用mold上，然后封车，使其牢固可靠。9.3.14Alllongitudinalweldinglineineveryringofplatesshallbeinthesamedirectionandthedistancebetweenthemshallbe1/3ofthelengthofplateandnolessthan500mm.各圈壁板的纵向焊缝宜向同一方向错开，其间距宜为板长的1/3，且不得小于500mm。9.3.15Distancebetweenlongitudinalweldinglineinbottomringandbuttjointweldinglineinannularplateshallnotbelessthan200mm200mm.底圈壁板的纵向焊缝与罐底边缘板对接焊缝之间的距离，不得小于200mm200mm。9.3.16Distancebetweenshellnozzleorreinforceplatesedgeofnozzleandlongitudinalweldinglineinshellplateshallbenoless200mm;andbetweenshellnozzleorreinforceplatesedge,andtransverseweldinglineshallnotbelessthan100mm.壁板开孔接管或开孔接管补强板外缘与壁板纵向焊缝之间的距离，不得小于200mm；与环向焊缝之间的距离，不得小于100mm。9.3.17Distancebetweenbuttjointofcurbangleandlongitudinalweldinglineinshellplateshallnotbelessthan200mm.包边角钢对接接头与壁板纵向焊缝之间的距离，不得小于200mm；9.3.18Toleranceofshellplatesdimensionshallbeinaccordancewithrequirementsinthefollowingform:壁板尺寸的允许偏差，应符合下表的规定：壁板尺寸允许偏差TOLERANCEOFSHELLPLATESDIMENSION测量部位measuredpoints环缝对接（mm）buttjointofcircle环缝搭接lapjointofcircle（mm）length板长AB（CD）≥10mlength板长AB（CD）＜10mwidth宽度AC、BD、EF±1.5±1±2length长度AB、CD±2±1.5±1.5differenceofdiagonals对角线之差|AD-BC|≤3≤2≤3Linearity直线度AC、BD≤1≤1≤1AB、CD≤2≤2≤39.3.19Reeledshellplatesshallbeputerectlyontheplatformtobecheckedreferringtoatemplet.Verticaldirectionshallbecheckedwithastraighttempletandtheclearanceshallnotexceed1mm;horizontaldirectionshallbecheckedwithanarctempletandtheclearanceshallnotexceed4mm.壁板卷制后，应立置在平台上用样板检查。垂直方向上用直线样板检查，其间隙不得大于1mm；水平方向上用弧形板检查，其间隙不得大于4mm。9.4roofsheetsprefabrication罐顶板预制9.4.1Alignmentdrawingsofroofsheetsshallbemadeaccordingtodesigndrawings,GB128andactualspecificationsofsteelplatesbeforetheirprefabrication.顶板在预制前应按设计图纸及GB128要求和实际钢板规格绘制排版图。9.4.2Lineoutfigureofroofsheetsshallbemadeaccordingtodrawingsbygeometricexpandingmethod.用几何展开法，根据图纸对罐顶板进行放样。9.4.3Forribofdomeroof,acenterpointshallbedefinedfirst,andthenLineoutfigureandlineationshallbemadeaccordingtodiameterofthedomeroofandatlastcuttingmaterialshallbemadewithasemiautomaticcutterorbymanualgasgascutting.Ribsshallbecheckedwithanarctempletandtheclearanceshallnotexceed2mm.Particularactionshallbetakentoavoiddistortionwhenribsareweldedtoroofsheets.拱顶的加强肋，先确定一个中心，安拱顶内径进行放大样，划线，然后用半自动切割机或手工气割进行下料。加强肋用弧形样板检查，其间隙不得大于2mm；加强肋与顶板组焊时，应采取防变形措施。9.4.4Ineventthatbuttjointsareadoptedforribsconnection,padplatesshallbeusedandweldshallbethoroughlyfused.Ineventthatlapjointsareadopted,lengthofthelappartshallnotbelessthanthreetimesoftheribwidth.加强肋的拼接采用对接接头时，应加垫板，且必须完全焊透。采用搭接接头时，其搭接长度不得小于加强肋宽度的3倍。9.4.5Allroofsheetsshallbenumberedaccordingtoalignmentdrawingsaftercuttingmaterialfinished.Thenumberingformistankcodeplustanknumber.Thenumbersshallbemarkedonvisiblepartsofdomeroofsheets.所有罐顶板，下完料后，都要按照排版图进行编号，具体编号为：储罐代号+序号。编号标示在拱顶板明显部位。9.4.6Erectionsequenceconformtosequenceofalignmentdrawingsanderectfromsmalltobigsequence.安装顺序按排版图上序号，由小到大的顺序进行安装。9.4.7Alldomeroofsheetsshallbepiledupaccordingtoerectionsequence.所有拱顶板按安装顺序堆放。9.5COMPONENTPREFABRICATION构件预制9.5.1Finishedarccomponents(e.g.reinforcingringandcurbangle)shallbecheckedwithanarctemplet,andtheclearanceshallnotexceed2mm.Ineventbeingputontheplatformforchecking,theirturnupdistortionshallnotexceed0.1%oftheirlengthandshallnotexceed4mm.加强圈、包边角钢等弧形构件加工成型后，用弧形样板检查，其间隙不得大于2mm。放置在平台上检查，其翘曲变形不得超过构件长度的0.1%，且不得大于4mm。9.5.2Componentofhotgrillmoldingshallnotbeoverburnordegenerative.Deductionofitswidthshallnotexceed1mmandhotgrilltemperatureshallnothigherthan620℃.热煨成型的构件，不得有过烧、变质现象。其厚度减薄量不应超过1mm，煨制温度不得大于620℃。TANKASSEMBLY罐体组装10.1acceptanceoffoundations基础验收10.1.1Dimensionoffoundationssurfaceshallcomplywith:基础表面尺寸，应符合下列规定：Centerelevationoffoundationspermitteddeviationshallbe±20mmmm.基础中心标高允许偏差为±20mmmm；Thesurfaceimmediatelyundertheshellplatesshallbelaidsothatthedifferencefromameanleveldoesnotexceedplusorminus6mmin10mandplus12mmbetweenanytwopointsaroundthecircumference.支撑罐壁的基础表面，水平偏差在10m范围内，不超过±6mm，圆周方向任意两点不超过±12mm。c.Surfaceofsand-bitumenlayershallbeclose-grainedwithoutprojectinghunch,holloworperforativecrackle.Thefluctuantdegreeofsurfaceofsand-bitumenshallbecheckedbymethodsbelow:沥青砂层表面应密实，无突出的隆起、凹陷及贯穿裂纹。沥青砂层表面凹凸度应按下列方法检查：Fortankwhosediameterislessthan25m,measurefromfoundationcentertoperipheralpartswithawire.Themeasurepointsshallnotbelessthan10pointsper100m2(surfacearealessthan100m2shallbecalculatedas100m2),andpermitteddeviationofthefluctuantdegreeshallnotexceed25mm.储罐