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ID:40135743
大小:4.94 MB
页数:55页
时间:2019-07-22
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1、1In2003FrickIsCelebrating150YearsinManufacturingand120YearsinRefrigeration2FrickhasProducedover60,000ScrewCompressorssincetheFirstRWB-IIwasintroducedin19823ScrewCompressorBasicGeometry4ConstructionMaleandFemaleRotorsMountedonRadialandAxialBearingsFittedinclosetoleranceinterse
2、ctingbores.5Suctionprocess6MaximumSuctionVolumeTrappedVsVs7Compression8ContinuationofCompression9BeginningofDischargeVd101112EndofDischarge13AxialDischargePort14Vi(VolumeRatio)Vs(Volumeofgasatsuction)VD(Volumeofgasatdischarge)=15VolumeRatioAllFrickscrewsbuiltsince1981incorpo
3、rateVolumizerTMVariableVolumeRatiocontrol,tominimizepowerconsumptionduetooverandundercompression.Thisiseffectiveatfullandpartload.16VolumeRatioLowViSLIDEVALVESUCTIONOPENINGRECIRCULATIONSLOTDISCHARGEOPENING17VolumeRatioHiViSLIDEVALVESUCTIONOPENINGRECIRCULATIONSLOTDISCHARGEOPEN
4、ING18192021PartingLineMoveableSlideStop2223FrickVolumizerTMvariablevolumeratiocontrolsavespowerautomaticallyasconditionschange24CapacityControlAllFrickscrewsofferpreciseandefficientcapacitycontrolbyuseofaslidevalveandslidestopcontrollinginconcerttogether.25SlideValveUnloadin
5、gSLIDEVALVESUCTIONOPENINGRECIRCULATIONSLOTDISCHARGEOPENING26HowSlideValvesImprovePartLoadVolumeRatio27CapacityControlMethods-2RecirculationPassageSlideValveRegulatingCapacityandDischargePortLocationMoveableSlideStopRegulatingVolumeRatio28SlideValveSlideStopSVPistonSSPiston29
6、ViiscontrolledbytheQuantumTM,anadvancedPentiumbasedmicroprocessorcontrol30AllFrickScrewsuse100%Anti-FrictionBearings313233CylindricalRollerBearing34Anti-FrictionBearingsConsumeLessFrictionalHorsepowerApproximately11HPona300HPapplication35Anti-frictionBearingsallowtighterrot
7、ortorotorclearanceforlessgasleakageandreducedpowerconsumption.36OilReservoir37RefrigerantGasPressureOilOilabsorbsgaswhenpressurizedPressuredropcausesabsorbedgastomakefoam38OilCoolerRefrigerantGasPressureOilJournalBearingFilterRefrigerantFormsBubblesintheOilasitpassesThroughth
8、eOilSystemduetoPressureDrop39OilCoolerRefrigerantGasPressureOilOilPu
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