船用大型LNG液货罐的制造课件

船用大型LNG液货罐的制造ManufactureofLarge-ScaleLNGCargoTanks前言

Foreword

4000m3X46000m3X8自2008年2月,XXXX船舶技术咨询有限公司与XXX化工装备有限公司合作,共同建造大型LNG液货罐,现已优质和顺利完成12台液货罐的制造任务.SinceFebruary2008,XXXXandXXXjointlybuildlargeLNGcargotanks,wehavesuccessfullycompleted12cargotanks.设计参数DesignParameter容积Capacity

4000m36000m3设计压力Designpressure

5.2bar5.2bar设计温度Designtemperature

-1630C-1630C水压试验压力Hydrotestpressure

7.8bar9.5bar壳体最大厚度ShellMaxthickness

50mm50mm壳体直径Shelldiameter

13000mm13000mm壳体长度Shell

length

34788mm49690mm重量WeightX103Kg壳体Shell

260442内部构件Insidecomponents

105.4110管子Pipe

4.14.5保温层Insulationlayer

6072总重Grossweight

430628壳体结构图ShellStructure主要结构Mainstructure气室附属结构Subsidiarystructure

DomeSumpLifttinglug吸油井吊耳管系Piping装货管Loadpipe卸货管Returnpipe液位管Levelpipe测温管Temperaturepipe吹扫管Strippingpipe取样管Samplepipe蒸汽管Vapourpipe下部管子布置Lowerpipelayout管系Piping材料Material根据CarlBro设计要求,主体材料(包括筒体、封头、内部构件)采用EN10028-7中1.4315不锈钢板,内部管道及梯子采用316L不锈钢.关于304N不锈钢的说明:EN10028-71.4315相当于：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手工电弧焊:焊条:UTP1915;自动埋弧焊:焊丝:UTPUP1915焊剂:UTPUPFX1915/3氩弧焊:焊丝:UTPA1915Shieldedmetalarcwelding(SMAW):Weldingrod:UTP1915;Submergedarcwelding(SAW):WeldingWire:UTPUP1915Flux:UTPUPFX1915/3Gastungstenarcwelding(GTAW):WeldingWire:UTPA1915资源条件Resourceconditions厂房:高*宽≥33m*36m;起重能力:≥300T,2台;能承受足够载荷的地基;Workshop:Height*

Width≥33m*36m;Liftingcapacity:≥300T,2set;Foundationcanbeartheenoughload;制造流程ManufacturingProcess材料入厂验收封头板压制封头装配焊

接筒体卷制筒体纵缝焊

接内部构件制作缓冲舱壁与筒体装配焊接筒体与封头装配焊接筒体与筒体装配焊接内部清理筒体合拢焊接中间支撑与筒体焊接气室/油井/吊耳焊接内部管线/梯子安装水压试验气密性试验内/外表面清理保温移出车间船上安装制造流程ManufacturingProcessMaterialsintothefactoryacceptanceHeadpressingHeadassembly&weldingShellrollingShellwelding

oflongitudinalseamInsidecomponentsfabricatingSwashbulkhead&shellweldingHead&shellweldingShell&shellassembly&circumferentialweldingInsidecleaningShellclosure&weldingMiddlesupport&shellweldingDome/Sump/LugweldingInsidepipe/LadderinstallationHydrostatictestLeaktestInside/outsidesurfacecleaningInsulationMoveoutofworkshopInstalltohull封头的制造Manufactureofhead压制Pressing切割Cuting打磨Grinding封头的制造Manufactureofhead装配Assembly缓冲舱壁的制造Manufactureofswashbulkhead缓冲舱壁的制造Manufactureofswashbulkhead缓冲舱壁装配到筒体上Swashbulkheadassemblytoshell内部支撑的制造Manufactureofinsidesupport内部支撑的制造Manufactureofinsidesupport缓冲舱壁装配到筒体上Insidesupportassemblytoshell筒体的制造Manufactureofshell卷制Rolling筒体的制造Manufactureofshell装配Assembly纵缝焊接Welding

oflongitudinalseam筒体的制造Manufactureofshell筒体与筒体装配Shell&shellassembly筒体的制造Manufactureofshell封头与筒体装配Head&shellassembly筒体的制造Manufactureofshell环缝焊接Welding

ofcircumferentialseam筒体的制造Manufactureofshell筒体翻转Shellturn筒体的制造Manufactureofshell内部打磨和清理Insidegrindingandcleaning筒体的制造Manufactureofshell筒体合拢Shellclosure气室Dome外部结构Outsidestructure安装到筒体上Assemblytoshell气室Dome内部管线Insidepipe吸油井Sump止浮装置Tankcounterholdbracket水压试验Hydrostatictest固定支撑Fixedsupport滑动支撑Slidingsupport水压试验用支撑木Supportwoodforhydrostatictest水压试验Hydrostatictest水压试验用支撑及平台Support&

platformforhydrostatictest水压试验Hydrostatictest液货罐摆在支撑上Cargotankplacedonsupport水压试验Hydrostatictest加水Addwater水压试验Hydrostatictest加压至9.5

bar

Pressurizedto9.5bar保温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保温Insulation

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