| 李文广,苏发章.分析离心油泵性能的新方法[J].水利学报,2002,33(10):0062-0066 |
| 分析离心油泵性能的新方法 |
| New method for analyzing the performance of centrifugal oil pumps |
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| DOI： |
| 中文关键词: 离心油泵 性能 粘油 叶片数 |
| 英文关键词: centrifugal oil pump performance viscous oil number of blades |
| 基金项目: |
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| 中文摘要: |
| 提出一种利用已知泵性能曲线深入分析离心油泵性能的新方法。首先列出离心泵内部流动能量平衡关系式和离心泵基本方程并分别对其求导 ，根据实验数据，联立求解方程计算出滑移系数、水力损失系数、容积效率、水力效率和机 械效率等参数随叶片数的变化关系，深入研究了叶片数对性能的影响。结果表明，滑移系数随叶片数增加而增大；叶片数通过改变叶轮滑移系数和水力效率来影响泵的水力性能；降低叶轮圆盘摩擦损失是提高离心油泵性能的关键。 |
| 英文摘要: |
| A new method for analyzing the performance of centrifuga l oil pump is proposed. The momentum equation and flow equation for fluid in the int erior of pump are established. The slip factor and hydraulic loss coefficient can be deduced by jointly solving these equations. On this basis the volume efficiency and mechanical efficiency can be obtained. The calculation result shows that the slip factor increases with the increase of the number of blades, the number of blades affects the hydraulic performance of pump through the changes of slip factor and hydraulic efficiency, the reduction of runner disc friction results in the elevation of performance. |
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