葉片式拋送裝置氣流流場(chǎng)分析及拋送試驗(yàn)研究.pdf

1、內(nèi)蒙古農(nóng)業(yè)大學(xué)碩士學(xué)位論文葉片式拋送裝置氣流流場(chǎng)分析及拋送試驗(yàn)研究姓名：索海霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)機(jī)械化工程指導(dǎo)教師：王春光20090501StudyonAirflowAnalysisofanImpellerBlowerandBlowingExperimentAbstractImpellerblowersareusedwidelyinalltypesofagriculturalmachinery，suchasshredders，

2、rubbingmachinesandSOon，becauseoftheirsimplicityreliabilityandlowmanufacturingcostAtpresent，theyhavesomenegativeproblemsofstockcuttingandloadinginthematerialsblowingprocessImpellerblowersdependsonthehighspeedrotatingpaddl

3、estoconveymaterialsThefactors，whichmainlyinfluencethepowerconsumptionanddecidewhethermaterialsarethrownoutsmoothlyweretheairflowcausedbythehighspeedrotatingimpellerTherefore，theanalysisoftheairflowcarlgivetheoreticalbasi

4、stothedesignandimprovementofturbomachineInthispapertheairflowfieldwasanalyzedbymeansofusingFLUENTnumericalsimulationandexperimenting，andthebasiccharacteristicsabouttheairflowfieldweregainedComparingsimulationresultswithe

5、xperimentalones，itshowedthatthemathematicalmodelwasabletoaccuratelysimulatetheactualairvelocitiesMoreoverstudyresultsshowedthattheairflowpattemwouldaffecttheblowingefficiencyandpowerconsumption，andthehighertherotationals

6、peedoftheimpellerWas，thehighertheairflowvelocityataplaneofthestraw—threwdistanceWasAccordingtOtheexperimentofthrowingdistanceandpowerconsumptionatdifferentrotationalspeedsandpaddle’Sangels，thepaperdrewtheconclusionsthata