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葉輪進(jìn)口邊位置對(duì)深井離心泵水力性能的影響
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浙江省重大科技專項(xiàng)重大工業(yè)項(xiàng)目(2010C01032);江蘇高校優(yōu)勢(shì)學(xué)科建設(shè)工程資助項(xiàng)目;江蘇省2011年度普通高校研究生科研創(chuàng)新計(jì)劃項(xiàng)目(CXZZ11—0566)


Hydraulic Performance Effect of Impeller Inlet Edge Position on Deep-well Centrifugal Pump
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    摘要:

    針對(duì)一典型的150QJ20型深井離心泵,，設(shè)計(jì)了3種進(jìn)口邊位置的葉輪，基于Fluent軟件,，采用標(biāo)準(zhǔn)k—ε模型,、SIMPLEC算法對(duì)其進(jìn)行了全流場(chǎng)數(shù)值計(jì)算,，對(duì)不同進(jìn)口邊位置的葉輪出口斷面的壓力場(chǎng),、湍流場(chǎng)和速度場(chǎng)進(jìn)行了比較,，并結(jié)合試驗(yàn)分析了進(jìn)口邊位置對(duì)深井離心泵水力性能的影響,。結(jié)果表明,，適當(dāng)延伸葉輪進(jìn)口邊,，增加后流線的長(zhǎng)度，可以減小葉輪出口的湍流強(qiáng)度,，改善流場(chǎng)分布,；可以相對(duì)減小葉輪進(jìn)口直徑和葉輪進(jìn)口的沖擊損失，提高深井離心泵的水力性能,。

    Abstract:

    For a typical 150QJ20 type deep-well centrifugal pump, three positions of the impeller inlet edge were designed. The whole flow field of the deep-well centrifugal pump was simulated with Fluent code based on standard k—εturbulence model and the SIMPLEC arithmetic. The static pressure and turbulent flow field were compared, the impact of the position of impeller inlet edge on the hydraulic performance was analyzed. The results showed that appropriate extend the impeller inlet edge could reduce the turbulence intensity of impeller exports and improve the flow field, also could reduce the impeller inlet diameter and increase the hydraulic performance of deep-well centrifugal pump.

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周嶺,施衛(wèi)東,陸偉剛,黃萍,裴冰.葉輪進(jìn)口邊位置對(duì)深井離心泵水力性能的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(3):78-82. Zhou Ling, Shi Weidong, Lu Weigang, Huang Ping, Pei Bing. Hydraulic Performance Effect of Impeller Inlet Edge Position on Deep-well Centrifugal Pump[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(3):78-82.

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  • 在線發(fā)布日期: 2012-03-17
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