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U-TUBEHEATEXCHANGERDESIGNABSTRACTThispaperintroducestheU-tubeheatexchangerdesignandcalculation.U-tubeheatexchangerhasonlyonetubesheet,tubesarefixedatbothendsofboardsinthesametube,andtubescouldtelescopicfreely,non-thermalstress,thermalperformanceandcompensation;useofdouble-tubeprocess,theprocessislonger,higherspeed,betterheattransferperformance,pressurecapacity,andcontrolcanbeextractedfromtheshellwitheasymaintenanceandcleaning,andsimplestructurecostless.ThemainstructureofU-tubeheatexchanger,includesEquipmentcontrol,shell,head,exchangertubes,nozzles,baffled,impingementbaffle,guideshell,anti-short-circuitstructure,supportandothershell-tubeaccessories.ThistimeIdesignedasecondcategorypressurevessel,whichhashighdesigntemperatureandhighdesignpressure.Thusthedesigndemandsarestrict.Ithasdualheatexchangertube,stainlesssteelheatexchangermanufacturers.Imainlycarriedoutthedesignofheatexchangerstructuraldesign,strengthofdesignandpartsselectionandprocessdesign.KEYWOEDS:U-tubeheatexchanger,frame,intensity,designandcalculation目录TOC\o"1-3"\h\uHYPERLINK\l"_Toc30242"摘要..................................................................................................................PAGEREF_Toc302421HYPERLINK\l"_Toc19476"绪论PAGEREF_Toc194766HYPERLINK\l"_Toc5200"第一部分、换热器简介及选择PAGEREF_Toc52007HYPERLINK\l"_Toc29652"1、换热器简介PAGEREF_Toc296527HYPERLINK\l"_Toc18270"2、换热器材料选择PAGEREF_Toc182708HYPERLINK\l"_Toc9352"2.1选材原则PAGEREF_Toc93528HYPERLINK\l"_Toc15182"3、换热器结构设计PAGEREF_Toc151828HYPERLINK\l"_Toc22743"第二部分、设计说明书PAGEREF_Toc227439HYPERLINK\l"_Toc10275"1、传热工艺计算PAGEREF_Toc102759HYPERLINK\l"_Toc23867"1.原始数据PAGEREF_Toc238679HY