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U型管式换热器设计说明书毕业论文.doc

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U型管式换热器设计说明书毕业论文.doc

IU型管式换热器设计摘要本文介绍了U型管换热器的整体结构设计计算。U型管换热器仅有一个管板,管子两端均固定于同一管板上,管子可以自由伸缩,无热应力,热补偿性能好管程采用双管程,流程较长,流速较高,传热性能较好,承压能力强,管束可从壳体内抽出,便于检修和清洗,且结构简单,造价便宜。U型管式换热器的主要结构包括管箱、筒体、封头、换热管、接管、折流板、防冲板和导流筒、防短路结构、支座及管壳程的其他附件等。本次设计为二类压力容器,设计温度和设计压力都较高,因而设计要求高。换热器采用双管程,不锈钢换热管制造。设计中主要进行了换热器的结构设计,强度设计以及零部件的选型和工艺设计。关键词U型管换热器,结构,强度,设计计算IIUTUBEHEATEXCHANGERDESIGNABSTRACTThispaperintroducestheUtubeheatexchangerdesignandcalculation.Utubeheatexchangerhasonlyonetubesheet,tubesarefixedatbothendsofboardsinthesametube,andtubescouldtelescopicfreely,nonthermalstress,thermalperformanceandcompensationuseofdoubletubeprocess,theprocessislonger,higherspeed,betterheattransferperformance,pressurecapacity,andcontrolcanbeextractedfromtheshellwitheasymaintenanceandcleaning,andsimplestructurecostless.ThemainstructureofUtubeheatexchanger,includesEquipmentcontrol,shell,head,exchangertubes,nozzles,baffled,impingementbaffle,guideshell,antishortcircuitstructure,supportandothershelltubeaccessories.ThistimeIdesignedasecondcategorypressurevessel,whichhashighdesigntemperatureandhighdesignpressure.Thusthedesigndemandsarestrict.Ithasdualheatexchangertube,stainlesssteelheatexchangermanufacturers.Imainlycarriedoutthedesignofheatexchangerstructuraldesign,strengthofdesignandpartsselectionandprocessdesign.KEYWOEDSUtubeheatexchanger,frame,intensity,designandcalculation安徽理工大学毕业论文i目录中文摘要...................................错误未定义书签。英文摘要...................................错误未定义书签。绪论..................................................11管壳式换热器的类型、结构与型号..............................21.1换热器的零部件名称..................................................21.2换热器的主要组合部件................................................32换热器材料选择..........................................42.1选材原则............................................................43换热器结构设计..........................................53.1壁厚的确定..........................................................63.2管箱圆筒短节设计....................................................63.3壳体圆筒设计........................................................73.4封头设计............................................................83.4.1后封头计算......................................................93.4.2管箱封头计算...................................................103.5换热管设计.........................................................113.5.1换热管的规格和尺寸偏差.........................................113.5.2U形管的尺寸....................................................123.5.3管子的排列型式.................................................123.5.4换热管中心距...................................................133.5.5布管限定圆.....................................................133.5.6换热管的排列原则...............................................153.6管板设计...........................................................153.6.1管板连接设计...................................................173.6.2管板设计计算...................................................193.7管箱结构设计.......................................................223.7.1管箱的最小内侧深度.............................................223.7.2分程隔板.......................................................224换热器其他各部件结构.....................................234.1进出口接管设计.....................................................234.1.1接管法兰设计...................................................234.1.2接管外伸长度...................................................25安徽理工大学毕业论文ii4.1.3接管与筒体、管箱壳体的连接....................................254.1.4接管开孔补强的设计计算........................................254.1.5接管最小位置...................................................294.1.6壳程接管位置的最小尺寸.........................................304.1.7管箱接管位置的最小尺寸.........................................304.2管板法兰设计......................................................314.2.1垫片的设计.....................................................334.2.2螺栓设计.......................................................344.2.3法兰设计.......................................................364.3折流板.............................................................384.3.1折流板尺寸.....................................................394.3.2折流板的布置..................................................394.3.3折流板的固定..................................................364.4拉杆与定距管.......................................................384.4.1拉杆的结构型式.................................................394.4.2拉杆的直径和数量...............................................394.4.3拉杆的尺寸.....................................................424.4.4拉杆的布置.....................................................434.4.5定距管尺寸.....................................................434.5防冲与导流.........................................................434.5.1防冲板的形式...................................................434.5.2防冲板的位置和尺寸.............................................434.5.3导流筒.........................................................444.6双壳程结构.........................................................444.7防短路结构.........................................................444.7.1旁路挡板的结构尺寸.............................................454.7.2挡管...........................................................454.7.3中间挡板.......................................................454.8鞍座...............................................................45结论..................................................46参考文献...............................................47致谢..................................................48附录英文文摘及翻译.......................................49

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