管壳式换热器-煤油冷却器的设计毕业设计.pdf

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1、山东科技大学学士学位论文摘要本文对煤油冷却器进行了设计，主要包括传热设计、换热器的结构和强度设计。传热设计主要是根据给定的工艺设计条件初选换热器类型为固定管板式换热器，估算换热面积；校核传热系数，并计算出实际的换热面积，经验证传热面积符合设计要求；管程及壳程的压力降经计算满足工艺要求。换热器的结构设计主要包括换热器内各零部件（如接管、折流板、定距管、管箱、鞍座、膨胀节等）的设计。强度设计包括对封头和筒体壁厚进行设计计算；对开孔处进行开孔补强计算并确定补强圈的尺寸；对管板和膨胀节进行壁厚设计和应力校核，结论表明各承压元件处的强度设计均满足强度要求。关键词：固定管板式换热器

2、；传热；强度1山东科技大学学士学位论文AbstractThedesignmanualisaboutthekerosenecooler,whichincludetheheattransfercalculationofheatexchanger,thestructureandthestrengthcalibrationofheatexchanger.Theheattransfercalculationprocessisbasedonthegivendesignconditionstochoosethefixedtubesheetheatexchanger,andthen,e

3、stimatetheheat-transferarea.Meanwhiletheprocessabovestillincludecheckingheattransfercoefficientandthecalculationoftheactualheattransferarea,whichcanmeetthedesignrequirement.Thepressuredropiscalculatedandmeetthetechnicalrequirement.Thedesignofthestructureisjustdependingontheselectedtypeof

4、heatexchangertodesigntheheatexchanger’scomponentsandparts,suchasvesting,baffledplates,thespacerpipe,tubeboxes,saddlesandtheexpansionjoint.Thestrengthcalibrationincludesthethicknesscalculationofshellcoverandtheshell.Basedontheopeningreinforcementcalculation,reinforcementpadcanbedetermined

5、.Thethicknessoftubesheetandtheexpansionjointiscalculated,andthenthestressischecked.Theresultsshowthatthepressure-bearingcomponentscanmeettheintensityrequirements.Keyword:Shell-Tubeheatexchanger;heattransfer;strength.2山东科技大学学士学位论文目录1绪论......................................................

6、.............................................................51.1换热器的应用..........................................................................................51.2换热器的主要分类..................................................................................51.3换热器的优化设计.....................

7、.............................................................81.4设计课题的意义....................................................................................101.5课题主要研究内容................................................................................102传热设计................