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燈泡體支撐件對貫流泵水力性能的影響?yīng)?/div>
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Supporting Shape on the Hydraulic Performance of Bulb Tubular Pumps
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    摘要:

    燈泡體支撐件（包括進(jìn)人孔和底部支承）是貫流泵裝置內(nèi)部重要的過流部件，本文采用CFD方法對貫流泵裝置內(nèi)部流場進(jìn)行數(shù)值模擬,，對不同支撐件形狀進(jìn)行了比較分析和優(yōu)化,，并與試驗(yàn)結(jié)果比較,。結(jié)果表明，進(jìn)人孔和底部支承的形狀對泵裝置的水力損失和水流流態(tài)的影響都比較明顯,，合理的支撐件形狀可以改善流態(tài)、減少水流環(huán)量，提高泵裝置效率,。

    Abstract:

    Bulb tubular pumps have small hydraulic loss and high pumping system efficiency, which especially suit to the low lift head, large discharge and long running time situation. Bulb supporting units which including manhole and bottom supporting are important flow-passage components of bulb tubular pump. The turbulent flow in a bulb tubular pump with different supporting shapes was simulated by CFD method. The results of the calculation indicated that the shape of supporting has a marked influence on hydraulic loss in the discharge passage and flow pattern. Therefore, reasonable shape of supporting can improve the turbulent flow pattern, reduce the circumference velocity and increase the pumping system efficiency.

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金燕,劉超,湯方平,周濟(jì)人.燈泡體支撐件對貫流泵水力性能的影響?yīng)琜J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(11):78-82. Supporting Shape on the Hydraulic Performance of Bulb Tubular Pumps[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(11):78-82.

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