資源描述：
《u形管換熱器設(shè)計(jì)學(xué)位論文 .doc》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、U形管式換熱器設(shè)計(jì)摘要換熱器是化工生產(chǎn)過程中的重要設(shè)備，它能夠?qū)崿F(xiàn)介質(zhì)之間熱量交換，廣泛應(yīng)用于汽車、航空、石油化工、動(dòng)力、醫(yī)藥、冶金、制冷、輕工、食品、工程機(jī)械等行業(yè)，約占工藝設(shè)備總量的20%～70%。按其傳熱面的形狀和結(jié)構(gòu)進(jìn)行分類可分為管型、板型和其他形式換熱器。目前常用的換熱器種類有浮頭式、固定管板式和U形管式，其中以浮頭式換熱器居多。固定管板式換熱器由于自身結(jié)構(gòu)，應(yīng)用的場(chǎng)合有限；浮頭式換熱器零部件多，易拆卸和清理，但檢修的工作量大，容易內(nèi)漏；而U型管式換熱器的管板比固定管板式換熱器少，其泄漏點(diǎn)就相應(yīng)減少。此外
2、,U型管式換熱器的殼程水壓試驗(yàn)后烘干也比較容易，而且它的適用場(chǎng)合廣、檢修簡(jiǎn)單、操作彈性好。如果換熱器的換熱面積小、殼程與管程的溫差較大或殼程介質(zhì)很容易臟、管束表面需要經(jīng)常清理地，一般都采用U型管式換熱器。本設(shè)計(jì)參照GB150-2011，GB151-1999等參考文獻(xiàn)，綜合考慮各種因素結(jié)構(gòu)設(shè)計(jì)需要選擇適用合理、經(jīng)濟(jì)的結(jié)構(gòu)形式。U形管式換熱器主要是由筒體、封頭、管箱、管板、換熱管、折流板和法蘭等組成，根據(jù)給定的工藝參數(shù)進(jìn)行計(jì)算和校核，計(jì)算結(jié)果經(jīng)校核后全部合格。關(guān)鍵詞：換熱器，U形管式，計(jì)算，校核。1U-tubeheat
3、exchangerdesignAbstractHeatexchangerisanimportantequipmentinchemicalproductionprocess,itcanrealizeheatexchangebetweenmedium,widelyusedinautomotive,aerospace,petrochemical,power,refrigeration,lightindustry,food,medicine,metallurgy,engineeringmachineryandotherin
4、dustries,accountsforabout20%~70%ofthetotalprocessequipment.Accordingtotheheattransfersurfaceshapeandstructureofclassificationcanbedividedintotubetype,platetypeheatexchanger,andotherforms.Atpresentcommonlyusedtypeheatexchangerhasfloating-headtype,fixedtubeplate
5、andUtubetype,ofwhichthemajorityoffloatingheadheatexchanger.Fixedtubeplateheatexchangerduetoitsstructure,theapplicationoflimitedoccasions;Floatingheadheatexchangercomponents,easydisassemblyandcleaning,butmaintenanceworkloadisbig,easytoleak;AndtheUtubeheatexchan
6、gertubeplatelessthanfixedtubeplateheatexchanger,theleakwilldecreaseaccordingly.Inaddition,theshellsideoftheUtubeheatexchangerafterdryingisalsoeasier,waterpressuretestanditswideapplicationoccasions,simplemaintenanceandgoodelasticityofoperation.Ifheatexchangerhe
7、attransferareaissmall,theshellsideoftheshellsideandtubesidetemperaturedifferenceisbiggerormediumitiseasytodirty,bundleneedoftencleanupthegroundsurface,generallyUSEStheUtubeheatexchanger.WithreferencetothedesignofGB150-2011,GB151-2011references,suchascomprehens
8、iveconsiderationofvariousfactorsneedtoselectsuitableandreasonable2structuredesign,thestructureoftheeconomy.U-tubeheatexchangerisdominatedbycylinder,head,tube,heatexchangetubeandtub
