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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分析及拋送試驗(yàn)研究姓名：索海霞申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)機(jī)械化工程指導(dǎo)教師：王春光20090501撼要時片式拋送裝囂由予艇寄結(jié)構(gòu)麓肇、工作磁攀蛾及制造成舉僦游優(yōu)點(diǎn)，因越廣泛塞蘺予落簿爨、豢薅轆窩竣蓑撬等蕊類表蔫蘸撼上。輦薔畸篾畿超送裝囂存在赫主要瓣憨是受贊大、瓣耩難。嬸慧戲拖送裝置妻蘩霆疆跨耱辮黼速囊轉(zhuǎn)象撼送物料的，旋轉(zhuǎn)的葉輪肼產(chǎn)生的氣流魁影響物料能謝順利拋出以及葉片式拋送濺霉輯瀵糕功攀憋重要匿豢赫匿瑟，對{母輟祝躐翡浚燎進(jìn)囂努輯，巍予設(shè)詩器羧遴對籍爨藕蕊熬攀。本文遴瀲試驗(yàn)麟究潮撼予FLUENT撥術(shù)麴數(shù)毯摸擬對時片拭拋送裝置氣淡流蟋進(jìn)
2、行了分概，獲雩導(dǎo)了氣流流場的基本特征。遂避姆氣流瀛場試驗(yàn)結(jié)果比較裝湊；囊溪FLUENT蓑莽瓣葉片蕊戇遴裝鬻氣濾囂糕遂囂模攘分褥懿蕤萊霆菱穗蕊。褥突繁濺，氣滾蓑§甥瓣分毒彩鑣游辮魏巍送，藏撇送時輪轉(zhuǎn)瀵越高，盤辯巍管盥口截面處的氣瀛速艘越大，平均拋邀距離越遠(yuǎn)。邋過在不閹轉(zhuǎn)速和葉片傾趟下蕊撻邀耀離幫費(fèi)糕試驗(yàn)，餐懣時片綴煞藩要蘸3臻辯，瓣送躐褰矮遺：鼗彝跨冀瓣舞避琦糕灄李。美毽遞；崤片蔽拋送裝饕；氣流滾螻；數(shù)篷模摟；試驗(yàn)磺究StudyonAirflowAnalysisofanImpeller-BlowerandBlowingExperimentAbstractImpellerblowersa
3、reusedwidelyinalltypesofagriculturalmachinery，suchasshredders，rubbingmachinesandSOon，becauseoftheirsimplicity,reliabilityandlowmanufacturingcost．Atpresent，theyhavesomenegativeproblemsofstockcuttingandloadinginthematerialsblowingprocess．Impellerblowersdependsonthehigh·speedrotatingpaddlestoconve
4、ymaterials．Thefactors，whichmainlyinfluencethepowerconsumptionanddecidewhethermaterialsarethrownoutsmoothly,weretheairflowcausedbythehigh·speedrotatingimpeller．Therefore，theanalysisoftheairflowcarlgivetheoreticalbasistothedesignandimprovementofturbomachine．Inthispaper,theairflowfieldwasanalyzedb
5、ymeansofusingFLUENTnumericalsimulationandexperimenting，andthebasiccharacteristicsabouttheairflowfieldweregained．Comparingsimulationresultswithexperimentalones，itshowedthatthemathematicalmodelwasabletoaccuratelysimulatetheactualairvelocities．Moreover,studyresultsshowedthattheairflowpattemwouldaf
6、fecttheblowingefficiencyandpowerconsumption，andthehighertherotationalspeedoftheimpellerWas，thehighertheairflowvelocityataplaneofthestraw—threwdistanceWas．AccordingtOtheexperimentofthrowingdistanceandpowerconsumptionatdifferentrotationalspeedsandpaddle’Sangels，thepaperdrewtheconclusionsthatasthe
7、backwardangelofpaddleWas3o，thethrowingdistanceWasthefarthestandthepowerconsumptionofradialpaddleWasthelowest．keywords：Impeller-blower，Airflowfield；Numericalsimulation：Experimentstudy插圖和圖表清單圖l切碎的玉米秸稈???????????????????????????．3圖2葉
