| 超常规低比速轴流定桨式转轮设计及其CAD系统 |
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| 引用本文： | 敏政,刘有余,齐学义,李琪飞.超常规低比速轴流定桨式转轮设计及其CAD系统[J].兰州理工大学学报,2005,31(5):50-53. |
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| 作者姓名： | 敏政 刘有余 齐学义 李琪飞 |
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| 作者单位： | [1]兰州理工大学流体动力与控制学院,甘肃兰州730050 [2]安徽工程科技学院机械工程系,安徽芜湖241000 |
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| 摘 要： | 分析轴流定桨式水电站枯水期小流量下不能发电的原因，提出减容增效改造方案，并指出超常规条件下的设计特点．允许目标转轮叶片出口处有较常规设计值大的正向环量存在，能保证在此工况下的无分离流动．以奇点分布法为基础，利用Visual Basic和AutoCAD开发出低比速轴流式转轮叶片水力设计CAD软件，解决了多哇电站冬季发电问题，并给出了算例．
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| 关 键 词： | 轴流定桨式水轮机 减容增效 转轮 水力设计 |
| 文章编号： | 1000-5889(2005)05-0050-04 |
| 收稿时间： | 2004-05-16 |
| 修稿时间： | 2004年5月16日 |
Hydraulic design method of hyper-normal low specific speed axial-flow fixed-blade runner and its CAD system |
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| MIN Zheng, LIU You-yu, QI Xue-yi, LI Qi-fei.Hydraulic design method of hyper-normal low specific speed axial-flow fixed-blade runner and its CAD system[J].Journal of Lanzhou University of Technology,2005,31(5):50-53. |
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| Authors: | MIN Zheng LIU You-yu QI Xue-yi LI Qi-fei |
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| Institution: | 1. College of Fluid Power and Control, Lanzhou Univ. of Tech. , Lanzhou 730050, China; 2. Department of Mechanical Engineering, An- hui University of Technology and Science, Wuhu 241000, China |
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| Abstract: | The reasons of that the propeller turbine cannot generate power in dry season with small flow rate are analyzed and a remodeling scheme of capacity-decreasing and efficiency improvement is put forward. Then the peculiarity of design under hyper-normal condition is pointed out. Basing on method of singularity distribution, a software for hydraulic design of low specific speed axial-flow runner blades is developed with Visual Basic and AutoCAD. An example to demonstrate and explain its usage is given, also. |
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| Keywords: | propeller turbine capacity-decreasing and efficiency improvement runner hydraulic design |
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