脉冲清灰袋式除尘器性能实验研究及仿真分析-流体机械及工程专业论文.docx

ABSTRACTThestudyofbagfiltersincludesexperimentalresearchesandphysicalsimulation,butthereismuchcertainlimitationintheexperimentalstudy,suchasalongperiod,cannotmonitortheactualworkingconditionsoftheduststreamfiltrationprocessaswellasthecleaningprocess.Whatsmore,itisnotdealwithvariouseffectsandcouplingrelationshipbetweencleaningmechanismandtheash removalmechanismfactors,whichrestrictthedevelopmentofitsnewproductandthedesigninnovation.Numericalsimulationisdifficulttodeterminetheaccurateboundaryconditions,leadingtodiscrepanciesbetweensimulationresultsandactualworkingcondition.Asabranchofsimulationtechnology,semi-physicalsimulationcombinesthephysicalmodelwithentitystructure,whichmakesthesimulationmoreclosetotheactualsituationandreceivemorepreciseinformation.Pulse-jetcleaninghasbecomethemainstreamindustrialaircleaningmethodof thebagfilters.Thoughmanydocumentsstudiedonthecleaningmechanismandperformanceevaluation,ithasnotyetformedamainstreamconsensus,meanwhile,thedesignofthepulse-jetcleaningfilterexcessivedependonexpertsexperience, thatlimitsthetechnicalperformanceoptimizationandproductinnovationofpulse-jetcleaningfilter.Therefore,tosolvetheseproblems,experiment,physicssimulationandsemi-physicalsimulationwerecombinedinthispaper.Theresearchcontentsandresultswereasfollows:Onthebasisofcollectingtheresearchaboutbaghouseperformanceandnumericalsimulation,designedamulti-functionintegratedexperimentaldevicewhichtakesintoaccountthephysicalexperimentandasemi-physicalsimulationexperiment;completedtheoveralldesignofexperimentalsystem,experimentaldesignandequipmentselection;accordingto theliteraturesummary,determinedtheexperimentofthe filterandeffect evaluation index andthe experiment value rangeof relevantparameters,builtasemi-physicalexperimenthardwareintheloopsimulationsystem.Toensuretheexperimentduststream,designedavibrationdevicefordusttransport,meanwhile,theoreticalanalysisanddynamicanalysishavebeendonetoverifythedeviceissafeandtheresultsquitemeetsthetestrequirements.Thedustfiltrat