儲罐制作作業(yè)指導書解讀

1、CSPCNANHAIPETROCHEMICALSPROJECTCSPC南海石化項目FABRICATIONANDERECTIONOFTANKWORKINSTRUCTION儲罐制作及安裝作業(yè)指導書WORKINGINSTRUCTION：WI-8710-8100-0013cSEPCOElectricalPowerConstructionCorporation山東電力基本建設(shè)總公司REVDATEREASONFORISSUEBYCHKDREVIEWAPPRA22JUL2003IssueforReviewandapprovalWFLHJCHYDPS0024AUG2003Issueforimplementat

2、ionWFLHJCHYDPS0112SEP2003IssueforimplementationWFGHMZXLHJCSPCNanhaiPetrochemicalsProjectSEPCOElectricPowerConstructionCorpCSPCNanhaiPetrochemicalsProjectSEPCOElectricPowerConstructionCorpWI-8710-8100-0013cRev.01FABRICATIONANDERECTIONOFTANKWORKINSTRUCTION油罐及水箱的制作與安裝作業(yè)指導書Page of36WI-8710-8100-0013cRev

3、.01FABRICATIONANDERECTIONOFTANKWORKINSTRUCTION油罐及水箱的制作與安裝作業(yè)指導書Page of36目錄TABLEOFCONTENTS1.0PURPOSE目的2.0SCOPE范圍3.0RESPONSIBILITIES職責4.0PROJECTSUMMARIZATION工程概述5.0WRITINGREFERENCE編制依據(jù)6.0PRIMARYCONSTRUCTIONSCHEME主要施工方案7.0PROCESSFLOW工藝流程8.0ERECTIONPROCESSREQUIREMENT安裝工序要求9.0TANKPREFABRICATION罐體預(yù)制10.0TAN

4、KERECTION罐體組裝11.0ACCESSORYINSTALLATION附件安裝12.0WELDANDWELDINGLINEINSPECTION焊接及焊縫檢驗13.0GEOMETRICDIMENSIONANDDIMENSIOMNINSPECTIONOFTANKS罐體的幾何尺寸和尺寸檢驗14.0FILLINGTESTING充水試驗15.0ANTICORROSIVEPAINTING防腐涂漆16.0CONSTRUCTIONACCEPTANCE工程驗收17.0LABORFORCEPLAN勞動力計劃18.0EQUIPMENTFORCONSTRUCTION施工機具使用計劃19.0JSA工作安全分析AT

5、TACHMENT:CALCULATIONONHOISTINGVERTICALPOST附錄：提升立柱計算說明書PURPOSE目的Toprovidespecificationandrequirementforoil/watertankfabricationinCSPCNanhaiPetrochemicalsProject,Steam&PowerPlantProject.Thisinstructioncanactasadirectioninmakinganderectingtankstoensuretheprojecttocompleteontimeandwithgoodquality.在于制訂南海

6、石化汽電聯(lián)產(chǎn)項目油罐、水箱制作的規(guī)范及要求，作為以后制作及安裝的指導，確保工程高質(zhì)量的按期完工。SCOPE范圍Thisinstructioncompliestothefabricationanderectionofoil/watertanksinCSPCNanhaiPetrochemicalsProject,Steam&PowerPlantProject(exceptingforthermalinsulationandantisepsis).本指導書適用于南海石化汽電聯(lián)產(chǎn)項目油罐、水箱的制作及安裝(不包括保溫、防腐)。RESPONSIBILITIES職責SEPCO2isresponsiblef

7、orthefabrication,erection,inspectionandtestingofoil/watertanks.山東電建二公司負責油罐、水箱的制作及安裝、檢驗和試驗。SEPCO1isresponsiblefortheexcavationfabrication,inspectionandtestingoftanksfoundation.山東電建一公司負責油罐、水箱基礎(chǔ)開挖、制作、檢驗和試驗。SEPCOisresponsiblefortheinterfacecoordinationandqualitycheckandacceptance.基建總公司負責接口協(xié)調(diào)和質(zhì)量驗收。PROJEC

8、TSUMMARIZATION工程概述PROJECTBRIEFINTRODUCTION工程簡介8oiltanks,2desaltingtanksand2coagulatingtanksneedtobeerectedonsiteforCSPCNanhaiPetrochemicalsSteam&PowerProject.Themaximumcapacityoftanksis8350m3.Watertanksarenormalpressurecontainers,whichstructuralform2/2-isverticalcylindersteelweldeddomerooftank.Grade

9、ofsurfacefinishisSaInsideshellneedanepoxylining,whiletheoutsideistobepaintedforprotection;Oiltanksarelowpressurecontainers,whichstructuralformisverticalcylindersteelweldeddomerooftank.GradeofsurfacefinishisSa2于.Insideshellrequiresafirstcoat,whileoutsiderequiresthermalinsulationafterprimer,inter-coat

10、andtopcoat.南海石化汽電聯(lián)產(chǎn)項目現(xiàn)場安裝有儲油罐8座、除鹽水箱2座、凝結(jié)水箱2座，罐的最大容積為8350ms,其中水箱為常壓容器，結(jié)構(gòu)形式為立式圓筒鋼制焊接儲罐，頂部為拱頂，除銹等級為Sa2,2，罐壁內(nèi)側(cè)為環(huán)氧樹脂襯里，外側(cè)涂漆防護；油罐為低壓容器，結(jié)構(gòu)型式為立式圓筒鋼制焊接儲罐，頂部為拱頂，除銹等級為Sa212，罐壁內(nèi)側(cè)為一遍底漆，外側(cè)涂底、中、面漆后保溫防護。4.2PROJECTITEMS工程項目PROJECTITEMSSCHEDULE工程項目一覽表序號ITEM名稱NAME代號CODE規(guī)格SIZE（直徑*高度）DIA.*HEIGHT容積CUBAGE（m3）重量WEIGHT(kg)

11、數(shù)量QUA罐頂形式ROOFFORM1儲油罐OILTANKT8691Q20*206283126,5001帶肋拱頂DOMEWITHRIB2儲油罐OILTANKT8682Q22.5*218350192,0001帶肋拱頂DOMEWITHRIB3儲油罐OILTANKT8681Q22.5*218350192,0001帶肋拱頂DOMEWITHRIB4儲油罐OILTANKT8683Q22.5*218350192,0001帶肋拱頂DOMEWITHRIB5儲油罐OILTANKT8662Q20*206283158,0001帶肋拱頂DOMEWITHRIB6儲油罐OILTANKT8661Q20*206283158,00

12、01帶肋拱頂DOMEWITHRIB7儲油罐OILTANKT8671Q17.5*14336770,0001帶肋拱頂DOMEWITHRIB8儲油罐OILTANKT8651Q10*13102131,7001帶肋拱頂DOMEWITHRIB9除鹽水箱DESALTINGTANKT8441AQ21.2*12.24084113,0001帶肋拱頂DOMEWITHRIB10除鹽水箱DESALTINGTANKT8441BQ21.2*12.24084113,0001帶肋拱頂DOMEWITHRIB11凝結(jié)水箱COAGULATINGTANKT8471Q16*12.2230969,0001帶肋拱頂DOMEWITHRIB12

13、凝結(jié)水箱COAGULATINGTANKT8481Q22.7*14.65655137,0001帶肋拱頂DOMEWITHRIBButtjoint(fullymelt)willbeadoptedforannularplatesandlapjointforbottomcenterplates;buttjoint(weldinglinefullymelt)beadoptedforshellplates,andlapjointfortankroof,buttjointforeveryplatepart.Roofformisdomeroofwithrib.罐底板邊緣板采用對接接頭（全部熔透），中幅板采取搭接

14、接頭；罐壁板采用對接接頭（全熔透焊縫）；罐頂板采取搭接接頭,每一等分板間采用對接接頭。罐頂?shù)慕Y(jié)構(gòu)形式全為帶肋拱頂。Thereeling,sandblasting,paintingofsteelplatesshallbefinishedinworkshop.Erection,includingprocessofassembly,weld,inspection,testing,thermalinsulationandantisepsis,willbedoneatjobsiteerectinglocation.鋼板的卷制、噴砂、涂漆在車間完成。儲罐在現(xiàn)場的安裝位置進行安裝，現(xiàn)場安裝包括組對、焊接、檢

15、驗、試驗、保溫、防腐等工序。編制依據(jù)WRITINGREFERENCEaConstructiondrawingsandrelateddocument施工圖紙及相關(guān)文件bGBJ128-90Construction,CheckandAcceptanceSpecificationofVerticalCylinderSteelWeldedOilTankGBJ128-90立式圓筒形鋼制焊接油罐施工和驗收規(guī)范DEP34.51.01.31-CSPCStandardVerticalTanks-Selection,DesignandFabricationDEP34.51.01.31-CSPC標準立式油罐-選擇、設(shè)

16、計和制作DEP30.48.00.31-CSPCPaintingandCoatingofNewEquipmentDEP30.48.00.31-CSPC新施工項目的涂漆和覆層DEP64.51.01.31-CSPCStandardVerticalTanksFieldErectionandTestingDEP64.51.01.31-CSPC標準立式油罐-安裝和實驗DEP1-CSPCSystem&FacilityFireProtectionDEP1-CSPC系統(tǒng)和設(shè)備的防火保護DEP0-CSPCGlassLinerofFacilityandPi

17、pingDEP0-CSP設(shè)備和管道的玻璃襯里ConstructionQualityInspectionPlanQC-8420-8600-0001施工質(zhì)量檢驗計劃QC-8420-8600-0001PRIMARYCONSTRUCTIONSCHEME主要施工方案Constructionscheme:Accordingtotheconstructioncharacteristicsandfieldenvironmentalrequirement,shellplatesandbracesofoil/watertanksshallbeprefabricatedintheplantoff

18、sitebeforetheirassembly（i.e.bending,derustingbysandblastingandpaintingofshellplatesandbraces.）first,thenbetransportedtojobsiteforassembly.Reverseassemblymethodisadopted,thatistosay,tankwillbeassembledfromroofdownwardtobottom.Theerectionsequenceis:tankbottom,roofsheeting,tank,facilities,facilitiesout

19、sidethetank,andatlastrailingplatform.Theassemblyshallbedonewith25Thydraulictrackcrane,andchainfallshallbeadoptedforerection.Scaffoldsshallbebuiltbothinsideandoutsideoftankforerectionprocess.施工方案：根據(jù)油罐、水箱的施工特點和現(xiàn)場環(huán)保需要，此油罐、水箱的壁板及支撐組裝前，在安裝現(xiàn)場外的工廠內(nèi)先進行預(yù)制（即壁板及支撐的折彎、噴鋼砂除銹及油漆），再運輸?shù)桨惭b現(xiàn)場進行組裝，組裝時采用倒裝法，也就是自罐頂?shù)降装宓难b

20、配、制造順序；安裝順序為：罐底、頂板、筒體、設(shè)備、外殼外部設(shè)備、欄桿平臺；組裝采用25t汽車吊，安裝采用倒鏈提升；安裝時罐內(nèi)外搭設(shè)腳手架.Erectionplatform:Bottomplatesofoil/watertanksactastemporaryworkplatformforshellplatesassembly.組裝場地：油罐及水箱底板作為臨時平臺，用作壁板組裝。PROCESSFLOW工藝流程Processflowchartofoil-tankfabricationanderection:油罐制作安裝工藝流程圖：Workshopprefabricationprocessflowch

21、art:車間預(yù)制的工藝流程圖：DrawingsjointcheckupReceivedmaterialinspectionConstructiontechnologydeliverlayingoffandgrooveprocessReelingSandBlastingPaintingandNumberingTransportedtojobsite圖紙會審進廠檢驗施工技術(shù)交底下料及坡口加工卷板噴砂涂漆并編號運輸?shù)浆F(xiàn)場Jobsiteerectionprocessflowchart:現(xiàn)場安裝流程圖：constructionpreparationacceptanceoffoundationlaying

22、bottomplatesweldofbottomcenterplatesassemblyandweldoftopplateassemblyandweldofcurbangleassemblyoftemporarycolumnfordomeroofassemblyandweldofroofplatesassemblyandweldofribsforrooferectionofhoistingverticalcolumnhoistingshellplatesassemblyandweldofthesubsequentcoursefinishedweldinspectionfilletweldshe

23、llplatestobottomplatesweldshellplatestoannularplatesvacuumsideleakingofseamsonthebottomplatesacceptanceofgeometricdimensionerectionoffittingserectionofstairplatformfillingwatertestinganticorrosionandthermalinsulationacceptanceofthefinishedconstruction施工準備基礎(chǔ)驗收鋪設(shè)底板中幅板焊接最上層壁板裝配、焊接包邊角鋼組對、焊接臨時拱頂支柱組裝罐頂板裝配

24、、焊接罐頂肋板裝配、焊接提升立柱安裝提升壁板裝配、焊接下一層壁板依次提升組焊其他各層壁板罐壁焊縫檢驗最下層壁板和底板的角焊縫焊接中幅板與邊緣板焊接底板焊縫真空測漏罐體幾何尺寸驗收附件安裝梯子平臺安裝充水試驗防腐、保溫竣工驗收&ERECTIINGPROCESSREQUIREMENT安裝工序要求CONSTRUCTIONPREPARATION施工準備Drawingsshallbecheckedupbyrelatedpersonnel.Particularattentionshallbepaidtocheckingthegeneraldimensionandjunctionsdimensionofta

25、nks.Learntheusageandbasicworkingprincipleofoil/watertank.Makecleartechnicalstandard&requirementandprimaryconstructionworkloadaccordingtotheacceptancespecification.Intheeventanymisunderstandingormistakeonthedrawingsisdiscovered,theproblemshallbereportedandsolvedbeforeconstruction.熟悉圖紙，組織有關(guān)人員進行圖紙會審。重點

26、審核油罐及水箱的整體尺寸及連接點尺寸，弄清油罐及水箱用途及基本工作原理，并且對照驗收規(guī)范，弄清技術(shù)標準及要求和主要工程量，圖紙設(shè)計不清或錯誤，應(yīng)及時反映，落實清楚后方可施工。Organizetherelatederectingpersonneltoprovidetechnologydelivery.Projectsummarization,timelimit,primaryconstructionworkload,primarytechnologyrequirements,constructionspecificationsandstandards,constructionprocessand

27、methods,theproblemstowhichparticularattentionshallbepaid,keypointsofthedrawingsandqualitycontrollingpointandsafetyprecautionsshallbeinterpreted.組織有關(guān)安裝人員進行技術(shù)交底。交代工程概況、施工工期及主要工程量；交代主要技術(shù)要求和執(zhí)行的規(guī)程規(guī)范及標準；交代施工順序及施工方法，指出應(yīng)注意的問題和有關(guān)處理方法；指出圖紙中的關(guān)鍵之處，指出質(zhì)量控制點；交代安全注意事項等。Compiletoolingmaterialplanandstarttostock.編制工裝

28、材料計劃并備料Constructionequipment&toolsandfieldpreparation:施工機具、施工場地準備：a.Receivedliftingfacilityinspectionbeforeenteringsite.起重設(shè)備進廠檢查。bToolsroom,oxygenethyneroomandelectricweldmachineswitchboarddistribution.現(xiàn)場工具室、氧氣乙炔房及電焊機配電盤布置。Manualelectricweldmachineandotherfacilitiesarrangementpreparation.電焊機等其它設(shè)備工器具

29、準備布置。Depositarydistributionformaterials,wastesandfinishedproducts.原材料、廢料及成品堆放場地布置。Employeetemporaryrestroom,electrodesroomanddryingroomdistribution.職工臨時休息室、焊條庫及烘干室布置。Others.其它Preparationfortools,instruments,auxiliaryfacilitiesandsafetyprotectingequipment:Toolsandinstrumentsofalltypesshallcomplywitht

30、heconstruction&safetyrequirementandgaugesshallbeinspectedforacceptance.Allofthesafetyfacilitiesandequipmentshallcomplywithappropriatespecifications.工器具量具輔助設(shè)施安全防護用品等的準備：各種工器具符合施工及安全要求；各種量具經(jīng)檢驗合格；安全設(shè)施及安全用品符合安全規(guī)定。Designandfabricationoftoolingsystem工裝設(shè)計制作Designandfabricationofspecialequipmentforhoistingt

31、ankwalls筒壁提升專用工具設(shè)計制作。Designandfabricationofspecialsupportforshellplatesarrangement壁板放置專用支架設(shè)計制作。Designandfabricationofspecialtoolingsystemforsettlingtankwallsreinforcingringsintoplace筒壁加強環(huán)就位專用工裝設(shè)計制作。Materialsinspectionbeforeenteringthefactory材料入場檢驗Carbonsteelplatesandsectionsshallconformtotheaccepted

32、standardsofthecountriesinwhichthetanksaretobefabricatedorthesteelistoberolled.碳鋼板和附件應(yīng)符合儲罐的制作和鋼板卷制的國家驗收標準。Thesteelshallcontainnotmorethan0.23%carbon,0.05%sulphurand0.05%phosphorus.鋼材中各成分含量CW0.23%,SW0.05%,PW0.05%。Thesteelshallhaveaguaranteedminimumultimatetensilestrengthofatleast363N/mm2andamaximumult

33、imatetensilestrengthofnotmorethan510N/mm2.Thesteelshallhaveaguaranteedyieldstrengthofatleast206N/mm2.Thesteelshallhaveanelongationnotlessthan22%.鋼材應(yīng)保證最小極限抗拉強度至少為363N/mm2且最大極限抗拉強度不超過510N/mm2，屈服強度至少為206N/mm2，不小于22%的延展性。Tankshellplatesandbottomannularplatesshalldisplayadequatenotchtoughness,asshownbelo

34、w:儲罐的殼體板和底部環(huán)型板應(yīng)有足夠的切口韌性,表示如下：Platethickness板厚（mm）Ultimatetensilestrength極限抗拉強度（N/mm2）MinimumCharpy-Vvalue（J）最小卻貝V型切口值（J）Testtemperature（C）實驗溫度（C）W12.5IMPACTTESTSNOTREQUIRED無要求沖擊實驗12.5W43027+2012.543041-5Mechanicaltesting機械測試Mechanicaltestingisnotrequiredforroofandbottomplatesforwhichthethicknessisde

35、terminedforpracticalreasonsandnotbystressconsiderations.由于頂部和底部板的厚度由實踐理論確定且不考慮壓力,因此力學實驗對頂部和底部板不要求。Forshellplatesandforthebottomannularplates,testsshallbemadeonspecimenstakenfromeachplatethicknesswithafrequencyofonetestper25000kgofsteelorpartthereof.對于殼體板和底部環(huán)型板，用每2500Okg的鋼材做一個實驗的頻率對每一個厚度的板進行抽樣實驗。Mill

36、certificatesshallshowallthepropertiesofmaterialsguaranteedbyitsspecificationandanyadditionalrequirements.工廠證明書表明了通過規(guī)范及一些附加要求而保證的材料的所有特性。StructuralboltsshallcomplywithGB123,grade8.8.結(jié)構(gòu)螺栓遵從GB123,8.8級罐體預(yù)制TANKPREFABRICATIONTEMPLETPREFABRICATION樣板預(yù)制Thelengthofarctempletshallbemorethan2.5m.弧形樣板長度應(yīng)大于2.5m。O

37、nestraighttempletshallbeusedtotesttheconvexandconcavecurvatureoftankbottomandwall,withlengthnolessthan1m.直線樣板一個：用于檢查罐底和罐壁的凸凹度,其長度不小于1米。Templetshallbemadeof6=0.75mmgalvanizedsheetiron.樣板用6=0.75mm鍍鋅鐵皮制成。TANKSBOTTOMPLATEPREFABRICATION罐底板預(yù)制Alignmentdrawingsshallbemadeaccordingtothedesignrequirementsanda

38、ctualspecificationsofsteelplatesbeforebottomplateprefabrication.Diameteroftheplateshouldbeamplifiedby0.1%0.2%ofdesigneddiameterinordertocompensateweldshrinkofbottomplate.(Conecurvatureofbottomplatehasbeentakenintoconsideration).底板預(yù)制前應(yīng)根據(jù)設(shè)計要求及實際鋼板規(guī)格繪制排板圖,排板直徑宜按設(shè)計直徑放大0.1%0.2%,以補償?shù)装宓暮附邮湛s(此已考慮了底板的錐度)。Acc

39、ordingtothealignmentdrawings,asemiautomaticcuttingmachineshallbeusedforcuttingplates.Thecuttingmachinecanalsobeusedtomakegrooveinarcannularplates.按照排版圖,用半自動切割機進行下料,對于弓形邊緣板應(yīng)用半自動切割機打坡口。Afterfinishedcuttingplates,hoistthebottomplateontoanabrasiveconveyerbeltforremovingrust.將下好的底板,吊至拋丸機傳送帶上,進入拋丸機拋丸除銹。Bl

40、owawaydustandironpowderonsteelplatesafterbeingprocessedinanabrasivebyusinganair-compressor.利用空壓機壓力風,吹凈拋丸后鋼板上的塵土及鐵粉。Tankbottomshallbespraypaintedwithzinc-richepoxyprimerbyusingtheairlesssprayequipment.Dryfilmthicknessshallbe25um.利用無氣噴吐機對罐底噴底漆,底漆為環(huán)氧富鋅底漆,干膜厚度為25um。Checkofdryfilmthicknessshallcomplywith

41、GB50205-2001CODEFORACCEPTANCEOFCONSTRUCTIONQUALITYOFSTEELSTRUCTURES.Dryfilmthicknessshallbecheckedwithdryfilmthicknessmeter.Eachcomponentforexamining5places,everywhereis3averagevalueofdryfilmthicknessformutuallybeingapartfrom50mmmeasuringpoints.干膜厚度的測量遵循GB50205-2001鋼結(jié)構(gòu)工程施工質(zhì)量驗收規(guī)范。利用干膜測厚儀檢查油漆干膜厚度。每個構(gòu)件

42、檢測5處，每處的數(shù)值為3個相距50mm測點涂層干漆厚度的平均值。Paintingshallnotbepermittedintheareaof50mmaroundtheweldinglineonbottomplate.底板的現(xiàn)場焊接焊縫周圍50mm范圍內(nèi)不允許刷漆。Bottomplateswillbenumberedaccordingtoalignmentdrawingsafterpainthasbeendriedadequately.Numberingmethodisasfollowing:Tanknumberpluserectionsequencenumber.待油漆充分干燥后，按照排版圖對

43、底板進行編號，具體編號方式如下：儲罐編號+安裝序號Bottomplatesshallbepiledupandtransportedaccordingtoerectionsequenceafteritsnumbering.編號完畢后，按照安裝順序擺放、運輸。Inequableclearancesshallbeadoptedforbuttjointsinarchedannularplates.Outboardclearanceshallbe6-7mmwhileinboardclearanceshallbe8-12mm.弓形邊緣板的對接接頭，宜采用不等間隙。外側(cè)間隙宜為67mm；內(nèi)側(cè)間隙宜為812m

44、m。Widthofbottomcenterplateshallnotbelessthan1000mmandlengthshallnotbelessthan2000mm.中幅板的寬度不得小于1000mm；長度不得小于2000mm；Distancebetweenanytwoadjacentweldinglinesinbottomplatesshallnotbelessthan200mm.底板任意相鄰焊縫之間的距離，不得小于200mm。Deviationofdimensiontoleranceofarchedannularplatesshallbeinaccordancewithrequiremen

45、tsinthefollowingform:弓形邊緣板的尺寸公差允許偏差，應(yīng)符合下表的規(guī)定。弓形邊緣板尺寸允許公差PERMITTEDTOLERANCEOFARCANNULARPLATESDIMENSION測量部位measuredpoints允許偏差（mm）toleraneeheightAB、CD長度widthAC、BD、EF寬度differeneeofdiagonalsIAD-BCI對角線之差22W3.一E1弓形邊緣板尺寸測量部位INSPECTIONLOCATIONOFARCANNULARPLATESCSPCNanhaiPetrochemicalsProjectSEPCOElectricPowe

46、rConstructionCorpCSPCNanhaiPetrochemicalsProjectSEPCOElectricPowerConstructionCorpCSPCNanhaiPetrochemicalsProjectSEPCOElectricPowerConstructionCorpWI-8710-8100-0013cRev.01FABRICATIONANDERECTIONOFTANKWORKINSTRUCTION油罐及水箱的制作與安裝作業(yè)指導書Page of36WI-8710-8100-0013cRev.01FABRICATIONANDERECTIONOFTANKWORKINSTR

47、UCTION油罐及水箱的制作與安裝作業(yè)指導書Page of36WI-8710-8100-0013cRev.01FABRICATIONANDERECTIONOFTANKWORKINSTRUCTION油罐及水箱的制作與安裝作業(yè)指導書Page of36SHELLPLATESPREFABRICATION壁板預(yù)制ShellplatesalignmentdrawingshallbemadeaccordingtothedesigneddimensionandGB128beforetheircuttingprefabrication.壁板在切割預(yù)制前，應(yīng)按設(shè)計圖紙尺寸及GB128進行排版。Allsteelpl

48、atesshallberecordedandtabbedaccordingtoarrangementandparts;allplatesshallbepiledupin-orderforeasyerection.所有鋼板下料時應(yīng)按層次，部位做好記錄并標號，堆放時應(yīng)按安裝順序放之，以便安裝就位。Lineoutfigureonsteelplatesaccordingtoalignmentdrawingstomaketheirdimension(diagonal,lengthetc.)tocomplywithrequirements.Makegroovewithasemiautomaticcutte

49、raftertheplateshavebeencheckedup.按照排版圖，在鋼板放樣劃線，使其對角線及長寬等尺寸符合規(guī)范要求，校驗合格后用半自動切割機下料打坡口。Rollsteelplateswitharollingmachineandtheradianshallbecheckedreferringtoanarctemplettomakesureitcanmeetrequirementsindrawings.利用卷扳機卷板，弧度利用弧形樣板檢查，使其符合圖紙要求。Straightedgeofthickplatesshallbecutwithasemiautomaticcutterafter

50、rolling.Andgrooveshallbemademanually.較厚壁板卷制后，其直邊部分，用自動切割機割除，并用手工打坡口。Grooveofthinplatesshallbemadewithasemiautomaticcutterbeforereeling.Andthentheplateswillbeprocessedonareelingmachinetobendtheiredgestoarequiredradianbyusinganarctemplet.較薄壁板，卷制前先用半自動切割機打坡口，然后在卷板機上利用弧形模板，將鋼板兩端卷成所需弧度。Havingbeenrolled,t

51、heplateswillbeliftedontoanabratorconveyerbeltforremovingrust.將卷制好的壁板，吊至拋丸機傳送帶上，進入拋丸機拋丸除銹。Blowawaydustandironpowderonsteelplatesafterbeingprocessedinanabrasivebyusinganair-compressor.利用空壓機壓力風，吹凈拋丸后鋼板上的塵土及鐵粉。Shellplatesshallbespraypaintedwithprimerbyusingtheairlesssprayequipment.Afterdryfilmthicknesso

52、fprimercoatreachesto75um,inner-coatwillbeaddedtoathicknessof75umafteritisdry.利用無氣噴吐機噴底漆，待底漆干燥且干膜厚度達到75um后，再噴中間漆，并使中間漆干燥后，干膜厚度達到75um。Dryfilmthicknessshallbecheckedwithdryfilmthicknessmeter.Eachcomponentforexamining5places,everywhereis3averagevalueofdryfilmthicknessformutuallybeingapartfrom50mmmeasuri

53、ngpoints.利用干膜測厚儀檢查油漆干膜厚度。每個構(gòu)件檢測5處，每處的數(shù)值為3個相距50mm測點涂層干漆厚度的平均值。Paintingshallnotbepermittedintheareaof50mmaroundtheweldinglineonshellplate.壁板的現(xiàn)場焊接焊縫周圍50mm范圍內(nèi)不允許刷漆。Shellplateswillbenumberedaccordingtoalignmentdrawingsafterpainthasbeendriedadequately.Numberingmethodisasfollowing:Tanknumberplusshellcourse

54、numberplusringerectionsequencenumber.待油漆充分干燥后，按照排版圖對壁板進行編號，具體編號方式如下：儲罐編號+壁板層編號+環(huán)向安裝序號Shellplatesshallbepiledupandtransportedaccordingtoerectionsequenceandshallbeputonspecialmoldinsealedvehiclesduringtransportationtomakethemfirmandreliable.編號完畢后，按照安裝順序擺放、運輸，壁板運輸時，放置專用mold上，然后封車，使其牢固可靠。Alllongitudinal

55、weldinglineineveryringofplatesshallbeinthesamedirectionandthedistancebetweenthemshallbe1/3ofthelengthofplateandnolessthan500mm.各圈壁板的縱向焊縫宜向同一方向錯開，其間距宜為板長的1/3,且不得小于500mm。Distancebetweenlongitudinalweldinglineinbottomringandbuttjointweldinglineinannularplateshallnotbelessthan200mm.底圈壁板的縱向焊縫與罐底邊緣板對接焊縫之間

56、的距離，不得小于200mm。Distancebetweenshellnozzleorreinforceplatesedgeofnozzleandlongitudinalweldinglineinshellplateshallbenoless200mm;andbetweenshellnozzleorreinforceplatesedge,andtransverseweldinglineshallnotbelessthan100mm.壁板開孔接管或開孔接管補強板外緣與壁板縱向焊縫之間的距離，不得小于200mm；與環(huán)向焊縫之間的距離，不得小于100mm。Distancebetweenbuttjoin

57、tofcurbangleandlongitudinalweldinglineinshellplateshallnotbelessthan200mm.包邊角鋼對接接頭與壁板縱向焊縫之間的距離，不得小于200mm；Toleranceofshellplatesdimensionshallbeinaccordancewithrequirementsinthefollowingform:壁板尺寸的允許偏差，應(yīng)符合下表的規(guī)定：壁板尺寸允許偏差TOLERANCEOFSHELLPLATESDIMENSION測量部位measuredpoints環(huán)縫對接(mm)buttiointofcircle環(huán)縫搭接lapjo

58、intofcircle(mm)length板長AB三10m(CD)length板長AB(CD)190.1t3.0水平對接焊縫CompletedhorizontaljiontsW8（上層壁板厚度upperplate）0.2t1.58（上層壁板厚度upperplate）0.2t3.0Ananti-distortionboardshallbetackedper2000mmalonginsideofthehorizontalseamandper500mmfromthetopdownalonginsideofverticalseamtoavoidseamdistortionbecauseofweldin

59、g.環(huán)縫組對時，應(yīng)在內(nèi)側(cè)每2000mm左右點焊防變形板，以防止環(huán)縫的焊接變形?？v縫內(nèi)側(cè)自上而下，每500mm左右點焊防變形板。GeometricdimensionandweldsqualityofshellplatesshallbeinspectedaccordingtodesignrequirementsandDEP64.51.01.31-CSPCaftereverycourseofverticalandhorizontalseamhasbeenwelded.每層縱縫和環(huán)縫焊完后，應(yīng)按設(shè)計要求和DEP64.51.01.31-CSPC對壁板的幾何尺寸和焊縫質(zhì)量進行檢驗。Expansionrin

60、gshallbeputdowntoconnectwiththelasttierofshellplateafterverticalseamshavebeenweldedtoupperhorizontalseams.Doublebaffleswithheightof200mmshallbesetinsideandoutsideoftheerectionlines.Tankshallbeliftedfor150mmandpadplatesshallberemovedtomakeshellplatesintoplace.Distancebetweenverticalweldsofbottomcours