| 提高轴流泵抗汽蚀性能关键技术的综述 |
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| 引用本文： | 郭晓梅. 提高轴流泵抗汽蚀性能关键技术的综述[J]. 浙江水利水电专科学校学报, 2010, 22(3): 19-21 |
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| 作者姓名： | 郭晓梅 |
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| 作者单位： | 浙江水利水电专科学校,浙江,杭州,310018 |
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| 基金项目： | 2009年度浙江省水利厅重点科研基金资助项目，2010年度浙江省水利厅科研基金资助项目 |
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| 摘 要： | 通过对轴流泵汽蚀破坏机理的分析研究,以轴流泵的汽蚀基本方程为出发点,分析了轴流泵产生汽蚀的原因,提出了抑制轴流泵空化和汽蚀的关键技术措施.可得出在确定转轮的结构参数时,采取（1）适当地增大转轮叶片低压处的直径,有利于减少汽蚀.（2）转速较低的水轮机以及离心泵,可适当加大下环的圆弧半径R2,使叶片的负荷分布较均匀,并适当地改变低压侧叶片的位置,以减少空泡的凝聚（3）采用优化了的叶型等性能以抑制空化与汽蚀的发生,从而为提高轴流泵汽蚀性能和优化设计及其应用奠定理论基础.
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| 关 键 词： | 轴流泵 汽蚀 措施 |
On Key Technology of Anti-cavitation Performance of Axial Pump |
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| GUO Xiao-mei. On Key Technology of Anti-cavitation Performance of Axial Pump[J]. Journal of Zhejiang Water Conservancy and Hydropower College, 2010, 22(3): 19-21 |
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| Authors: | GUO Xiao-mei |
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| Affiliation: | GUO Xiao-mei(Zhejiang Water Conservancy and Hydropower College,Hangzhou 310018,China) |
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| Abstract: | The key technology of axial-flow pump,as well as the relevant anti-cavitation measures,is introduced in order to improve the performance based on the basic cavitation equation and mechanic analysis of axial-flow pump.It proves that under specific runner structural parameters,the adoption of increasing diameter of low-voltage runner helps to reduce the cavitation.The proper enlargement of arc radius R2 in low speed centrifugal pump can change the position of low voltage side of blade,therefore,to reduce vacuoles coherence.Through the analysis of the cavitation damaging mechanism in axial-flow pump,the optimized design of the vane is brought forward,which supplies theoretical basis for the optimized design and application of the axial pump. |
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| Keywords: | axial pump cavitation measures |
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