newplateheatexchangeroptimizationselection-外文文獻(xiàn)-全文預(yù)覽
【正文】 sotheheattransferequipm entm anufactureslim tedliabilty paniesadptothedevlopm entofanewtypeofheatpum , paredtothecondenser,whichasthefolwingadvantges:unitvolum einthevaporatorplate,theplatecondenserisaheatransferareofshelandtubeheatexchangerofthretim estheplatevaporatorheatransfercoeficentAbout10~120W/㎡?K,thecondenserplatehatransfercoeficentofabout150~20W/㎡?Kareshelheatexchangertwotthretim estheplateonthevaporatorusedtoRefrigerantdistributorfliquidevnlydistributedevices,whenthevaporatorplateafewm ore,m aybeunevndistributionfliquidrefrigerantandcanotakefuladvantgeofaltheeatndevaporationare,evaporationtem praturelowerthanthecalulatedesigntem ethesproblem ,evaporatorplate,theplatecondenserintheheatransfercoeficent△tm ~3℃,in150~20W/㎡?Kbetwenthersitanceandsm al,satisfyingtheatpum unitsRequirem nts.⑵sm alNTU(∽~2),the△tm (∽40~90℃)oftheplateheatexchangertom ettheeatrecoveryprocesandtheprocesheatingandcolingrequirem △tm conductedunderconditonsofheatransfer,thatdrivngforce,theatndthesm aler,theattransfercoeficentdem andisnothig,buthathisprocesorhigpresurework,orworkHightem prature,orprocesheatingandcolingprocesintheliquidcontainigfiberdiam etrorlargerparticles,theplatehatexchanger,thepresure,tem pratureandabiltytorequest,theatexchangertotheplatespacingrequirem nts.①Pai(breathing)aswatershelheatexchanger(Provincean),Pai(breathing)asshelairheatexchangers(airprehater)isaheatexchangerinBeijngBeijngequipm entm anufactureslim tedliabiltyPortlandpetrochem ical pan
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