氨高效管臥式蒸發(fā)器的理論和實(shí)驗(yàn)研究.pdf

1、天津大學(xué)碩士學(xué)位論文氨高效管臥式蒸發(fā)器的理論和實(shí)驗(yàn)研究姓名：劉昌豐申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：動(dòng)力工程指導(dǎo)教師：楊昭劉元璋20030628AbstractIntherefrigerationsystembyvaporcompress，evaporatorbelongstoheatexchangers，andisoneofthemostimportantpartsinitBecauseofthecharacterofammoniaevapor

2、atorissteelmadeonlyandthecommonheatexchangepipemadebysteelisusedinittosereasheatexchangecomponent，whoseheatexchangecoefficientislOWSOthevolumeofequipmentislargeaccordinglyandthematerialcostislargealsoWecandecreasemateria

3、lcostandincreaseefficiencyinsystembyenhancingthecoefficientofthepipeinevaporatorOneofthemostimportantaimsistofmdandapplynewhighefficientheatexchangepipeusedinammoniaevaporatorAuthorsummarizesthemostadvancingachievementsa

4、boutenhancingofheatexchangepipeusedintheevaporatoroftheworld，andgiveanewtypeheat—exchangepipe，typeTribpipe，usedinammomaevaporatorRelatingtherealityoftheYANl、AIMOONcompanyauthoralsodesignsmodelWZammoniaevaporatorusingtype

5、TribpipeImposingtheexperimentcondidon’weruntheindustryexperimenttoconlirmit；andtheresultisrightByexperiment，weapprovesthatatthesanleconditionthenewevaporatorusingTribpipehas30％performanceincreasingthantheold111eheat—exch

6、angecoefficientofthelatterisbasedonChinamachinerydepartmentstandardJB，r76584—95(horizontalevaporatorinammoniarefrigerantsystem》，K=535W／m2℃TheformerCansave25％steel，andisproducedandputintothemarketByanalyzingandexploring，a