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基于CFD的風篩式清選裝置氣流場優(yōu)化
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江蘇省農(nóng)機啟動基金資助項目（GXZ05017）和中央高?；究蒲袠I(yè)務費專項資金資助項目（KYZ201126）


Optimization of Airflow Field on Air-and-screen Cleaning Device Based on CFD
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    摘要:

    為了獲得平面振動篩分裝置氣流場分布規(guī)律和優(yōu)化參數(shù),，運用CFD軟件Fluent對風機傾角,、風機轉(zhuǎn)速、魚鱗篩夾角3個參數(shù)變化時的氣流場進行了數(shù)值計算和優(yōu)化,，在此基礎上應用Fluent進行了正交仿真試驗。根據(jù)試驗結果,，分析了這3個參數(shù)對氣流場的影響規(guī)律,，并對氣流場進行了優(yōu)化。優(yōu)化結果表明：風機傾角對氣流清選影響較大,，對4L〖CD*2〗1.0型全喂入收獲機的篩分裝置而言,，風機轉(zhuǎn)速為700 r/min，離心風機傾角為25°,，魚鱗篩夾角為20°時,，有利于谷粒與癟谷的有效分離。

    Abstract:

    To obtain the law and optimize factors of airflow field on the air and screen cleaning device, using the CFD software of Fluent, the numerical calculation and orthogonal experiment were implemented by changing three parameters: the obliquity of fan, the rotational velocity of fan, and the included angel of sieve. The influence law was analyzed and the airflow field was optimized by experiments results. The optimized results showed that the obliquity of fan had a great effect on the separation. The mixture of the grain and the blighted grain could be separated efficiently when the obliquity of fan was 25°, the rotational velocity of fan was 700 r/min , and the included angel of sieve was 20°.

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李驊,張美娜,尹文慶,李豫.基于CFD的風篩式清選裝置氣流場優(yōu)化[J].農(nóng)業(yè)機械學報,2013,44(Supp2):12-16. Li Hua, Zhang Meina, Yin Wenqing, Li Yu. Optimization of Airflow Field on Air-and-screen Cleaning Device Based on CFD[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(Supp2):12-16.

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  • 在線發(fā)布日期: 2013-10-21
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