船用大型LNG液貨罐的制造課件

船用大型LNG液貨罐的制造ManufactureofLarge-ScaleLNGCargoTanks前言

Foreword

4000m3X46000m3X8自2008年2月,XXXX船舶技術(shù)咨詢有限公司與XXX化工裝備有限公司合作,共同建造大型LNG液貨罐,現(xiàn)已優(yōu)質(zhì)和順利完成12臺(tái)液貨罐的制造任務(wù).SinceFebruary2008,XXXXandXXXjointlybuildlargeLNGcargotanks,wehavesuccessfullycompleted12cargotanks.設(shè)計(jì)參數(shù)DesignParameter容積Capacity

4000m36000m3設(shè)計(jì)壓力Designpressure

5.2bar5.2bar設(shè)計(jì)溫度Designtemperature

-1630C-1630C水壓試驗(yàn)壓力Hydrotestpressure

7.8bar9.5bar殼體最大厚度ShellMaxthickness

50mm50mm殼體直徑Shelldiameter

13000mm13000mm殼體長(zhǎng)度Shell

length

34788mm49690mm重量WeightX103Kg殼體Shell

260442內(nèi)部構(gòu)件Insidecomponents

105.4110管子Pipe

4.14.5保溫層Insulationlayer

6072總重Grossweight

430628殼體結(jié)構(gòu)圖ShellStructure主要結(jié)構(gòu)Mainstructure氣室附屬結(jié)構(gòu)Subsidiarystructure

DomeSumpLifttinglug吸油井吊耳管系Piping裝貨管Loadpipe卸貨管Returnpipe液位管Levelpipe測(cè)溫管Temperaturepipe吹掃管Strippingpipe取樣管Samplepipe蒸汽管Vapourpipe下部管子布置Lowerpipelayout管系Piping材料Material根據(jù)CarlBro設(shè)計(jì)要求,主體材料(包括筒體、封頭、內(nèi)部構(gòu)件)采用EN10028-7中1.4315不銹鋼板,內(nèi)部管道及梯子采用316L不銹鋼.關(guān)于304N不銹鋼的說(shuō)明:EN10028-71.4315相當(dāng)于：ASTM:304N;JIS:SUS304N1;GB:06Cr19Ni10NAccordingtothedesignrequirementofCarlBro,themainmaterial(includingshell,head,insidecomponents)useEN10028-7

1.4315

stainlesssteel,Insidepipeandladderuse316L.Abont304N:EN10028-71.4315Correspond：ASTM:304N;JIS:SUS304N1;GB:06Cr19Ni10N焊接材料Weldingconsumable手工電弧焊:焊條:UTP1915;自動(dòng)埋弧焊:焊絲:UTPUP1915焊劑:UTPUPFX1915/3氬弧焊:焊絲:UTPA1915Shieldedmetalarcwelding(SMAW):Weldingrod:UTP1915;Submergedarcwelding(SAW):WeldingWire:UTPUP1915Flux:UTPUPFX1915/3Gastungstenarcwelding(GTAW):WeldingWire:UTPA1915資源條件Resourceconditions廠房:高*寬≥33m*36m;起重能力:≥300T,2臺(tái);能承受足夠載荷的地基;Workshop:Height*

Width≥33m*36m;Liftingcapacity:≥300T,2set;Foundationcanbeartheenoughload;制造流程ManufacturingProcess材料入廠驗(yàn)收封頭板壓制封頭裝配焊

接筒體卷制筒體縱縫焊

接內(nèi)部構(gòu)件制作緩沖艙壁與筒體裝配焊接筒體與封頭裝配焊接筒體與筒體裝配焊接內(nèi)部清理筒體合攏焊接中間支撐與筒體焊接氣室/油井/吊耳焊接內(nèi)部管線/梯子安裝水壓試驗(yàn)氣密性試驗(yàn)內(nèi)/外表面清理保溫移出車間船上安裝制造流程ManufacturingProcessMaterialsintothefactoryacceptanceHeadpressingHeadassembly&weldingShellrollingShellwelding

oflongitudinalseamInsidecomponentsfabricatingSwashbulkhead&shellweldingHead&shellweldingShell&shellassembly&circumferentialweldingInsidecleaningShellclosure&weldingMiddlesupport&shellweldingDome/Sump/LugweldingInsidepipe/LadderinstallationHydrostatictestLeaktestInside/outsidesurfacecleaningInsulationMoveoutofworkshopInstalltohull封頭的制造Manufactureofhead壓制Pressing切割Cuting打磨Grinding封頭的制造Manufactureofhead裝配Assembly緩沖艙壁的制造Manufactureofswashbulkhead緩沖艙壁的制造Manufactureofswashbulkhead緩沖艙壁裝配到筒體上Swashbulkheadassemblytoshell內(nèi)部支撐的制造Manufactureofinsidesupport內(nèi)部支撐的制造Manufactureofinsidesupport緩沖艙壁裝配到筒體上Insidesupportassemblytoshell筒體的制造Manufactureofshell卷制Rolling筒體的制造Manufactureofshell裝配Assembly縱縫焊接Welding

oflongitudinalseam筒體的制造Manufactureofshell筒體與筒體裝配Shell&shellassembly筒體的制造Manufactureofshell封頭與筒體裝配Head&shellassembly筒體的制造Manufactureofshell環(huán)縫焊接Welding

ofcircumferentialseam筒體的制造Manufactureofshell筒體翻轉(zhuǎn)Shellturn筒體的制造Manufactureofshell內(nèi)部打磨和清理Insidegrindingandcleaning筒體的制造Manufactureofshell筒體合攏Shellclosure氣室Dome外部結(jié)構(gòu)Outsidestructure安裝到筒體上Assemblytoshell氣室Dome內(nèi)部管線Insidepipe吸油井Sump止浮裝置Tankcounterholdbracket水壓試驗(yàn)Hydrostatictest固定支撐Fixedsupport滑動(dòng)支撐Slidingsupport水壓試驗(yàn)用支撐木Supportwoodforhydrostatictest水壓試驗(yàn)Hydrostatictest水壓試驗(yàn)用支撐及平臺(tái)Support&

platformforhydrostatictest水壓試驗(yàn)Hydrostatictest液貨罐擺在支撐上Cargotankplacedonsupport水壓試驗(yàn)Hydrostatictest加水Addwater水壓試驗(yàn)Hydrostatictest加壓至9.5

bar

Pressurizedto9.5bar保溫InsulationWorkingprocedure1.Cleaning:Tanksurfaceshallbegrindedandpickled,ensurenoanylooseparticlesasrustanddust,water/moisture,grease,fatandoil.2.Priming:Apolyurethaneprimerwillbeappliedtothetanksurfacepriortoapplicationoffoamtoimprovebondingstrengthbetweenfoamandtanksurface.3.Sprayfirstlayer:Thefirstlayershallbesprayed2~3mm.Firstlayermustbecompletelycured(>1hour).Thenapply~50mmofPUfoam(density60kg/m3±10%)inminimum2layers.4.Crackbarrier:Aglassfibremeshwillbeappliedinbetweenfoamlayerstoactasacrackarrester/barriertoensurenothroughthicknesscracking.5.Spraysecondlayer:Typicalthicknessforeachlayeris25mm(±5mm).TheouterPUfoam(density40kg/m3±10%)shallbeappliedwithtotalthicknessof250mm8to12layers.Overallinsulationthicknessshallbe300mm.6.SurfaceProtection:Afterapplicationofthesprayfoam,apolyureacoatingwillbesprayedontothefoamsurfaceasahomogenouscontinuousprotectivelayer.Thiscoatingactsasbothvapourbarrierandasmechanicalprotection.Thecoatingisflexibleenoughtosustainthestructuralloadsinducedbythelargetemperaturevariationsapparentinacryogenicsystem.Thethicknesswillbe>3mm保溫Insulation

2.Priming:Apolyurethaneprimerwillbeappliedtothetanksurfacepriortoapplicationoffoamtoimprovebondingstrengthbetweenfoamandtanksurface.1.Surfacecleaning:Tanksurfaceshallbegrindedandpickled,ensurenoanylooseparticlesasrustanddust,water/moisture,grease,fatandoil.保溫Insulation3.Sprayfirstlayer:Thefirstlayershallbesprayed2~3mm.Firstlayermustbecompletelycured(>1hour).Thenapply~50mmofPUfoam(density60kg/m3±10%)inminimum2layers.4.Crackbarrier:Aglassfibremeshwillbeappliedinbetweenfoamlayerstoactasacrackarrester/barriertoensurenothroughthicknesscracking.保溫Insulation5.Spraysecondlayer:Typicalthicknessforeachlayeris25mm(±5mm).TheouterPUfoam(density40kg/m3±10%)shallbeapp