| 导叶二段关闭时机组转速升高的计算 |
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| 引用本文： | 张师华.导叶二段关闭时机组转速升高的计算[J].武汉大学学报(工学版),1991(2). |
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| 作者姓名： | 张师华 |
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| 作者单位： | 武汉水利电力学院水力发电工程系 |
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| 摘 要： | 本文介绍的是一种图解解析方法,根据计算精度的要求可分二步进行。第一步导出的为解析计算公式,能满足一般近似计算的要求;第二步的分析中由于已较合理地考虑了机组特性以及水击压力过程对转速升高的影响,因此精度较高。文中最后列出的实例与电算结果作了比较。
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| 关 键 词： | 二段关闭 水击 飞逸转速 转速 |
Speed-rise Computation for Hydraulic Turbine Following a Second Section Closure of Guide Vanes |
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| Zhang Shihua.Speed-rise Computation for Hydraulic Turbine Following a Second Section Closure of Guide Vanes[J].Engineering Journal of Wuhan University,1991(2). |
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| Authors: | Zhang Shihua |
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| Affiliation: | Zhang Shihua |
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| Abstract: | This paper introduces a graphic analysis method which consists oi two steps according to the demand of accuracy. The first step is to derive the formula of analytical computation to meet the need of general approach computation. The Second one is to conduct analysis. A higher accuracy is obtained because the characteristics of a hydraulic turbine and the influence of the process of water hammer on Speed-rise are rationally considered. Finally, an actual example is given and compared with the result calculated by computer. |
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| Keywords: | the second section closing water hammer run away speed speed |
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