| 叶轮与隔流板间隙对射流式自吸离心泵性能的影响 |
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| 引用本文： | 文海罡. 叶轮与隔流板间隙对射流式自吸离心泵性能的影响[J]. 热能动力工程, 2018, 33(7): 32-36 |
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| 作者姓名： | 文海罡 |
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| 作者单位： | 西华大学流体及动力机械教育部重点实验室能源与动力工程学院 |
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| 基金项目： | 国家高新技术研究发展（863计划）项目（2011AA100506） |
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| 摘 要： | 为分析射流式自吸离心泵叶轮与隔流板间隙对其性能的影响,采用数值模拟的方法得到了5种该间隙下泵外特性曲线、自吸过程泵内部气液两相分布及流动情况,分析表明:随间隙增大,泵的扬程和效率上下波动较小;叶轮内含气率、导流器出口及泵体出口的气相质量流率随间隙增大而下降。兼顾考虑外特性、自吸性能、加工及装配工艺,确定叶轮与隔流板的间隙为1.0 mm最为理想。样机试验表明:设计点扬程34.21 m,效率55.29%;自吸高度为5 m时,自吸时间45 s,满足设计要求。
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| 关 键 词： | 自吸离心泵；叶轮；间隙；气液两相；自吸性能 |
Effect of the Clearance between Impeller and Fluid Directoron the Performance of Flow-ejecting Self-priming Centrifugal Pump |
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| WEN Hai-gang. Effect of the Clearance between Impeller and Fluid Directoron the Performance of Flow-ejecting Self-priming Centrifugal Pump[J]. Journal of Engineering for Thermal Energy and Power, 2018, 33(7): 32-36 |
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| Authors: | WEN Hai-gang |
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| Affiliation: | Key Laboratory of Fluid and Power Machinery of Ministry of Education,School of Energy and-Power Engineering,Xihua University,Chengdu,China,Post Code: 610039 |
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| Abstract: | |
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| Keywords: | self-priming centrifugal pump impeller clearance gas-liquid two phase performance of self-priming |
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