轴承在流体机械上的应用Bearing application in Fluid Machinery.ppt

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1、BearingApplicationinFluidMachineryPresentedtoSalesTeam演讲者：潘福华PresentedbyFreddyPan高级应用工程师SeniorApplicationEngineer2021-09-171DefinitionofFluidMachinery2021-09-17©SKFSlide3[Code]SKF[Organisation]TurboMachineryThegeneralclassificationofturbomachineryHavearotatingimpelleratle

2、astpartiallyencasedinastationaryhousing.Fans,PumpsandCompressorsaresimilarinmanyrespects.Allthreeareturbomachinesthattransferenergytoaflowingfluid.ThedistinctionbetweenFansandPumpsFanshandlegasesPumpshandleliquidsThedistinctionbetweenFansandCompressorsBaseonCompressionrat

3、ioordensitychangeVery-high-pressure-risemachineswillbeclassifiedascompressorsVery-low-pressure-risemachineswillprobablybeclassifiedasfansAssortedbygaspressureFanlessthan0.015MPacompressionratio<1.15Blower0.015~0.2MPacompressionratio=1~4Compressorover0.2MPacompressionratio

4、>4Lowpressure0.2~1MPaMediumpressure1~10MPaHighpressure10~100MPaSuperhighpressureover100MPa2Compressor2021-09-17©SKFSlide8[Code]SKF[Organisation]AssortedbyMediumAir(aircompressor)Petrochemicalgas(processcompressor)e.g.oxygen,carbondioxide,Nitrogen,Hydrogen,Naturegas,Chlori

5、ne,Ethylene,Methaneetc.Refrigerant(refrigerationcompressor)e.g.Ammonia,Freon,Lithiumbromideetc.AssortedbySegmentTurbinecompressor(centrifugalandaxialflow)israngedtoblowerSegmentDisplacementtypecompressorisrangedtocompressorsegmentRefrigerationcompressorisrangedtorefrigera

6、tionsegmentAssortedbystructureAssortedbystructureIDisplacementcompressorReciprocatingCompressorPistoncompressorDiaphragmcompressorNote:Inrefrigerationsegment,itdividetreetype:Hermetic<0.5KWSemihermeticOpenshaftAssortedbystructureIDisplacementcompressorRotarycompressorTwin

7、screwcompressor(oilfloodedandoilfree)(>15Kw)SinglescrewcompressorNote:Inrefrigerationsegment,itdividetreetype:Hermetic<0.5KWSemihermeticOpenshaftScrollcompressor(1.1kw-15kw)Rotarycompressor(<1.1kw)VanecompressorRootscompressor(blower)AssortedbystructureIITurbinecompressor

8、AxialflowcompressorCentrifugalcompressorMixed-flowcompressorCompressorsubsegmentsIndustrialAirPo