扩压器对离心式压缩机性能与辐射噪声影响-研究

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1、AbstractWimtheindustrialdevelopmenttoday，compressorsarewidelyusedinsteel，shipbuilding，petroleum，automotive，aerospace，andmanyotherareas．Visiblycompressorhasbeenoccupiedailimportantposition．Intheusingprocessofcompressor，itsperformancerequirementsofpeoplearemoreandmorehigh，andthenoiseproblemsof

2、vibrationandradiationreceivemuchmoreattention．DiffuseriSallimportantpartinthecompressor，thedifferenttypeofdiffuserwilllcadtothedifferenceofperformanceandvibrationnoiseofthecompressor．Inthispaper，basedonsimulationandexperiment，themechanismofimpactofdiffuseronperformanceandradiatednoiseofcompr

3、essorarestudiedtofindthesourceofvibrationandnoiseofcompress．功矗fhasveryimportantsignificancetoimprovecompressorperformance，reducenoiseandimprovepeople’Senvironmentqualityofworkandlife．‘Inthispaper，theMCLseriescentrifugalcompressorsofShenyangBlowerGrouparefor‘theresearch．Basedonthestudyofsimul

4、ationcalculationandanalysisofimpeller，theflowfieldofdifferenttypesofdiffuserofcentrifugalcompressorisstudied．nletotalpressuredistributionofflowfieldisobtainedbycalculation．Throughperformancetest，noisetestandradiatednoisefastpredictiontestofcompressorandaseriesoftests，theinfluenceofdifferentt

5、ypesofdiffuseronperformanceandradiatednoiseofcompressorarestudied．nlespecifictasksofstudyareasfollows：(1)Simulationanalysisofimpeller．Internalflowfieldofdiffuserindifferentshapesofmodelstagecentrifugalcompressorisanalyzed．Thetotalpressuredistributionoftheinternalflowfieldoffourdifferenttypes

6、ofdiffuserisobtainedbyCFDcalculation．ChangeflowconditiOIlSandcontrasttheperformancecurvesoffourdifferenttypesofdiffuser．(21Thetestswereimplementedtoresearchthecompressorperformancewiththeimpactsofdifferentdiffusers．Accordingtotheperformingeffectsbomofthecompressorwiththedifferentdiffusersand

7、modelstageimpactedbythedifferentdiffusersespecially，performancetestsofthestagewereimplemented,andtheperformingeffectseffectedthepressurepulsationwereanalyzed．Thepressurepulsationvaluesofimpellerinlet，diffuserinletandthediffuseroutletofcompressorand