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1、本科毕业设计（论文）开题报告题目：稳定塔底再沸器设计学生姓名辜胜学号0903020135教学院系机电院专业年级2009级过程装备与控制工程指导教师马欣职称副教授单位SouthwestPetroleumUniversityGraduationProjectsofUndergraduatesTubularHeatExchangerDesignNameGuShengNO.0903020135AcademySchoolofMechanicalEngineeringSpecialtyProcessEquip
2、mentandControlEngineering2009andGradeFacultyStablecolumnbottomMaXinTitleAdviserreboilerdesignDepartmentSchoolofMechanicalEngineeringFinishedDate：June8，2013摘要换热器是化工、石油、能源等各工业中应用相当广泛的单元设备之一。据统计,在现代化学工业中换热器的投资大约占设备总投资的30%,在炼油厂中占全部工艺设备的40%左右,海水淡化工艺装置则几乎全部
3、是由换热器组成的。对国外换热器市场的调查表明,虽然各种板式换热器的竞争力在上升,但管壳式换热器仍占主导地位约64%。新型换热元件与高效换热器开发研究的结果表明,列管式换热器已进入一个新的研究时期,无论是换热器传热管件,还是壳程的折流结构都比传统的管壳式换热器有了较大的改变,其流体力学性能、换热效率、抗振与防垢效果从理论研究到结构设计等方面也均有了新的进步。目前各国为改善该换热器的传热性能开展了大量的研究,主要包括管程结构和壳程结构强化传热的发展。本次设计为立式热虹吸再沸器。其优点是结构紧凑，传热效
4、率高，安装方便，运行成本底，加热介质在管程内停留时间短，不易结垢等。是稳定塔底再沸器的最佳选择。再沸器结构大致分为封头，管箱，管板，壳体，换热管，法兰，接管等。先根据设计要求进行工艺计算得到换热管设计要求，再根据换热管布管进行结构设计，最终校核结构是否符合要求。关键词：换热器；再沸器；设计；热虹吸AbstractTheheatexchangerischemical,petroleum,energyandotherindustrialunitsinthewidelyusedoneofthedevic
5、es.Accordingtostatistics,inthemodernchemicalindustry,heatexchangerequipmentinvestmentaccountsforabout30%ofthetotalinvestmentintherefineryprocessequipmentaccountedforabout40%,desalinationprocessplantisalmostentirelycomposedbyaheatexchanger.Foreignexcha
6、ngermarketsurveyshowsthatalthoughavarietyofplateheatexchangercompetitivenessontherise,buttheshellandtubeheatexchangersstilldominatedbyapproximately64%.Newhighefficiencyheatexchangerheatexchangercomponentsanddevelopmentresearchresultsindicatethatthecol
7、umntubeheatexchangerhasenteredaneweraofresearch,whetheritisheattransfertube,orshelldeflectorstructurethanthetraditionaltubeshellheatexchangerhasmadesignificantchanges,itshydrodynamics,heattransferefficiency,anti-vibrationandanti-scalingeffectfromtheor
8、ytostructuraldesignandotheraspectsalsohaveanewprogress.Currentlycountriestoimprovetheheattransferperformanceoftheheatexchangertocarryoutalotofresearch,includingthestructureandshell-tubeheattransferenhancementstructuredevelopment.Thisdesignisav
