制冷系统课件
- 格式:pdf
- 大小:6.33 MB
- 文档页数:66
Vapor-Compression Refrigerationexpansiondevice condensercompressorevaporator筑龙网www.zhulong.comAB焓蒸发制冷循环筑龙网w ww .z h ul on g.coAC compressor enthalpyevaporator 制冷循环B筑龙网w ww .z h ul on g.coAcondenserenthalpyevaporator 制冷循环BC compressor D筑龙网w ww .z h ul on g.coexpansion deviceADcondenserenthalpyevaporator制冷循环BC compressor 筑龙网w ww .z h ul on g.cosubcooleroutdoor aircondenser coilpropeller fan风冷式冷凝器筑龙网w ww .z h ul on g.ADenthalpyBCEffect of Effect of SubcoolingA I{subcoolingrefrigerationeffect D I 筑龙网w w w .z h ul on g.co离心式风扇centrifugal fancondensercoil筑龙网www.zhulong.co蒸发式冷凝器sumppumpcondensercoilrefrigerantvaporsubcoolerfanliquid refrigerant筑龙网w ww .z h ul on g.co mcooling watersubcooled , liquid refrigerantsubcooler水冷式冷凝器C C 筑龙网w ww .z hul on冷却塔spraysfrom condensertocondensersumppropellerfanoutdoorair2929ººC 3535ººC 筑龙网w ww .z h ul on g.co m冷凝器控制enthalpyfull loadcondenser heat rejection capacitypart loadfull load Condenser Capacitypart loadcondenser heat rejection capacity筑龙网w ww .z h ul on g.co冷凝温度控制condenser water pumpflow-regulatingvalvecondenser筑龙网www.zhulong.可变冷凝器水流量cooling towercondenservariable-speed drivecondensercooling tower bypass pipe diverting valve筑龙网w w w .z h ucooling tower condenservariable- speed drivecondensercooling towerbypass pipediverting valve可变进水温度筑龙网w w w .z h ulcondenserbypass pipecooling tower冷却塔旁通divertingvalve4ºC1818º13ººC 筑龙网w ww .z h ul on g.co m风冷式冷凝器控制heat rejection capacityfan Afan Bfan A damperA B筑龙网w ww .z h on g.冷凝器溢流控制evaporatorcompressorliquid receiverBACcondenserexpansionvalvedischarge line筑龙网w ww .z h ul on g.co mFinned-Tube Evaporatorrefrigerant vaporliquid/vapor refrigerant 筑龙网w ww .z h ul on g.coTurbulent Flow筑龙网w w w .z h ul on gFinned-Tube Evaporatorliquid/vapor refrigerantrefrigerant vaporliquid distributorairflowsuction header筑龙网w ww .z h ul on g.coSuperheatsuperheat{ACBACB筑龙网w ww .z h ul onShell-and-Tube Evaporatorrefrigerant vapor chilled water returnwater supplytube bundlebafflesliquid/vapor refrigerant筑龙网w w w .z h ul onShell-and-Tube Evaporatorbaffles筑龙网w ww .z h ul on gEvaporator ControlFinned-Tube Evaporator Controlexpansion valverefrigerant vaporevaporatorliquid refrigerant筑龙网w ww .z h ul on g.co mFace-Split Arrangementdistributors筑龙网w ww .z h ul on g.co mFace-Split Arrangement2727º-1.1-1.1ººC i na c t i v e c o i l ac t i v e c o i l 2727ººC 筑龙网w ww .z hul on g.co mIntertwined Arrangement筑龙网w ww .z h ul on g.coRow-Split Arrangement筑龙网w ww .z h ul on g.Row-Split Arrangement2727ººC 1313º筑龙网w ww .z hul on g.Shell-and-Tube Evaporator Controlrefrigerantvaporliquid refrigerantexpansion shell-and-tube evaporator筑龙网w ww .z h ul on g.c膨胀装置expansion deviceADcondenserenthalpyevaporatorBC compressor 筑龙网w ww .z h ul on g.co热力膨胀阀热力膨胀阀(TXV)液汽混合物制冷剂气体蒸发器A液体制冷剂筑龙网w ww .z h u l on g.co mTXV Controlliquid/vapor mixture refrigerant vaporAliquid refrigerant筑龙网w ww .z h ul on g.co mTXV Controlliquid/vapor mixtureliquid refrigerant筑龙网w ww .z h ul on g.co m过热superheated vaporTXV2 2 MPa MPa MPa, 42.8, 42.8, 42.8º0.59 0.59 MPaMPa MPa, 5, 5, 5ººC Arefrigerant筑龙网w w w .z h ul on g.co过热TXV9.49.4ººC 0.540.54 MPaMPa2 2 MPaMPaMPa, 42.8, 42.8, 42.8ººC0.590.59 MPaMPaMPa, 5, 5, 5ººC筑龙网www.zhulong.coTXV Operationexternal equalizerremote bulbevaporatorspringsuction linedistributordiaphragm筑龙网w ww .z h ul on g.cTXV Operationvalve pinsuctionlinespring9494ººC 0.54 0.54 MPaMPa 0.67 0.67 MPaMPa 0.54 0.54 MPa MPa 0.13 0.13 MPa筑龙网w ww .z h ul on g.cTXV OperationTXVexternal equalizerA B C筑龙网w ww .z h ul on g.co mSuperheat Setting电磁阀筑龙网w w w .z h ul on g.。