| 水轮机固定导叶与活动导叶的相互影响 |
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| 引用本文： | 李仁年,曹鹍,古兴侨. 水轮机固定导叶与活动导叶的相互影响[J]. 兰州理工大学学报, 1989, 0(4) |
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| 作者姓名： | 李仁年 曹鹍 古兴侨 |
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| 作者单位： | 甘肃工业大学机械工程二系(李仁年，曹鹍)，甘肃工业大学机械工程二系(古兴侨) |
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| 摘 要： | 本文通过对在专门研制的环盘式双列叶栅实验装置上所进行的固定导叶与活动导叶实验的分析,认为水轮机的固定导叶与活动导叶圆周方向的相互位置对导叶区域水流的特性和水力损失影响较大,指出了对称型和正曲率型活动导叶与固定导叶的最佳相对安放位置和流场的不同特性;建立了水轮机设计时确定固定导叶与活动导叶相对安放位置的经验公式;并分析了高水头低比转速水轮机导叶汽蚀破坏的主要水力原因。
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| 关 键 词： | 叶栅 固定导叶 活动导叶 汽蚀 水力损失 |
Interaction between Stationary and Guide Vanes of Hydraulic Turbine |
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| Li Rennian,Cao Kun,Gu Xingqiao. Interaction between Stationary and Guide Vanes of Hydraulic Turbine[J]. Journal of Lanzhou University of Technology, 1989, 0(4) |
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| Authors: | Li Rennian Cao Kun Gu Xingqiao |
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| Affiliation: | Second Department of Mechanical Engineering |
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| Abstract: | After the interaction between stationary and guide vanes being tested and analyzed using a special circular plate cascade equipment, it is pointed out in this paper that the mutual circumferential positions of stationary and guide vanes make a considerable influence on the flow characteristics and hydraulic losses in the area around guide vanes. Optimum setting positions of stationary and guide vanes with symmetric and positively curved profiles and the flow patterns are found. An empirical formula for determination of setting position is also derived. The reason of erosion damage of guide vanes in low specific speed hydraulic turbine has also been analyzed here. |
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| Keywords: | cascade stationary vane guide vane cavitation hydraulic loss |
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