大型立式圆筒形储罐的结构设计及焊接工艺设计.doc

PAGEVIIIQ235储罐毕业设计[作者：刘侨系别：机电工程系班级：焊接1201学院：四川建筑职业技术学院内容摘要油品和各种液体化学品的储存设备—储罐，是石油化工装置和储运系统设施的重要组成部分。近几十年来，发展了各种形式的储罐，但最常用的还是立式圆筒形储罐。本文设计的即为立式圆筒形储罐。立式圆筒形储罐需在现场施工，并且外观及内部结构设计上要经济适用，另外在设计的过程中注意储罐所受的自然环境对储罐的影响，如增强储罐的防风、防雪、抗震等功能。根据储存介质的要求来进行立式圆筒形储罐的选材，本文中储罐的介质为煤油，罐体采用Q235A钢材。罐壁结构采用不等厚罐壁，罐底采用设环形边缘板罐底，罐顶采用拱顶结构。根据施工现场的环境要求及储罐钢材、罐身厚度等参数选择合适的焊接方法及焊接材料，采用埋弧焊及手工电弧焊结合的焊接方法，做到所使用的方法快速简便且耐用。最后是对储罐整体进行检测。本文参照压力容器、大型储罐等标准，结合设计经验，着重阐述了大型立式圆筒形储罐的结构设计及焊接工艺设计的要点。关键词：立式储罐；埋弧焊；手工电弧焊；焊接结构；焊接工艺AbstractOilandvariousliquidchemicalsstorageequipment-tanks,chemicalplantandoilstorageandtransportationfacilities,animportantcomponentofthesystem.Astheverticalcylindricalstoragetanksneedtositeconstruction,whichinappearanceandstructuredesigntoachieveeconomicalandpayattentiontothenaturalenvironmentofthestoragetankstoragetanksufferedtheimpactofthedesignprocesstobeenhanced,toreachwind,snow,earthquake,etc.role.Thistankwallstructureusingladder-typetankwall,tankbottomedgeofplatewithcirculartankbottomset,tanktopwithdomestructure.Storagemediumaccordingtotherequirementsoftheselectionofverticalcylindricaltanks,themediainthisarticleforthekerosenetank,tankwithQ235Asteel.Accordingtotheconstructionsiteenvironmentalrequirementsandtanksteel,bodythicknessandotherparameterscanselecttheappropriateweldingmethodsandweldingmaterials,thispapercombinedwithsubmergedarcweldingandmanualarcweldingmethod,themethodusedtoachievefastandeasyanddurable.Finally,theiterativeexperimentsontheoveralltest.Thisreferencepressurevessels,largetanksandotherstandards,combinedwithdesignexperience,focusingonthelargeverticalcylindricalstoragetankstructuraldesignandweldingprocessdesignelements.Keywords：VerticalTank；SAW；Manualmetalarcwelding目录（）TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc264011166"1绪论1HYPERLINK\l"_Toc264011168"1.1立式圆筒形储罐的发展1HYPERLINK\l"_Toc264011169"1.2Q235A钢材2HYPERLINK\l"_Toc264011170"1.3埋弧焊2HYPERLINK\l"_Toc264011171"1.4手工电弧焊3HYPERLINK\l"_Toc264011172"2立式圆筒形储罐的罐壁设计4HYPERLINK\l"_Toc264011167"2.1储罐的整体设计4HYPERLINK\l"_Toc2640