| 水轮机空化系数及其对水力性能的影响 |
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| 引用本文： | 徐洪泉,王万鹏. 水轮机空化系数及其对水力性能的影响[J]. 大电机技术, 2010, 0(5) |
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| 作者姓名： | 徐洪泉 王万鹏 |
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| 作者单位： | 中国水利水电科学研究院,北京,100038;中国水利水电科学研究院,北京,100038 |
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| 摘 要： | 水轮机空化系数对水轮机的效率、出力、空化、压力脉动、飞逸转速及轴向水推力等性能均有一定影响,有的工况影响非常大。本文首先介绍了空化系数对能量、空化性能的影响及与其有关的两个空化系数的区别,然后着重介绍了空化系数对压力脉动和飞逸转速的影响,探讨了空化系数对轴向水推力的影响及正确的试验方法。
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| 关 键 词： | 水轮机 空化系数 效率 空化 压力脉动 飞逸转速 轴向水推力 |
Cavitation Coefficient of Turbine and It's Effect to Hydraulic Performance |
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| XU Hong-quan,WANG Wan-peng. Cavitation Coefficient of Turbine and It's Effect to Hydraulic Performance[J]. Large Electric Machine and Hydraulic Turbine, 2010, 0(5) |
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| Authors: | XU Hong-quan WANG Wan-peng |
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| Affiliation: | XU Hong-quan,WANG Wan-peng(China Institute of Water Resources , Hydropower Research,Beijing 100038,China) |
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| Abstract: | The cavitation coefficient can affect hydraulic performance of turbine in the fact of efficency,output,cavitation,pressure fluctuation,runaway speed and hydraulic axial thrust,and it have badly effect in some operating points.In this paper,the effect to energy and cavitation and the difference of two cavitation coefficient are intrcduced.And then stressed to introduce the effect of cavitation coefficient to pressure fluctuation and runaway speed,discussed the effect of cavitation coefficient to hydraulic ax... |
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| Keywords: | turbine cavitation coefficient efficiency cavitation pressure fluctuation runaway hydraulic axial thrust |
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