| 大型混流式水轮机小负荷工况振动研究 |
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| 引用本文： | 韦彩新,韩凤琴,孙建平,张双全. 大型混流式水轮机小负荷工况振动研究[J]. 华中科技大学学报(自然科学版), 1998, 0(10) |
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| 作者姓名： | 韦彩新 韩凤琴 孙建平 张双全 |
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| 作者单位： | 华中理工大学动力工程系 |
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| 基金项目： | 国家“九五”攀登计划项目“大型机电系统中若干动力学关键技术的研究”资助课题 |
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| 摘 要： | 研究了大型混流式水轮机小负荷工况下运行的振动．在小负荷工况下运行，水轮机转轮进口冲角很大，由此产生脱流，形成叶道涡，在尾水管形成涡带，涡带压力脉动引起了水轮机的振动．通过对小负荷区的试验研究，提出了小负荷区振动的解决办法．
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| 关 键 词： | 水轮机 小负荷工况 振动研究 |
Vibrational Research of Big Francis Turbine for Small Load Condition |
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| Wei Caixin,Assoc. Prof. , Dept. of Power Eng.,HUST,Wuhan ,China. Han Fengqin,Sun Jianping,Zhang Shuanquan. Vibrational Research of Big Francis Turbine for Small Load Condition[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1998, 0(10) |
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| Authors: | Wei Caixin Assoc. Prof. Dept. of Power Eng. HUST Wuhan China. Han Fengqin Sun Jianping Zhang Shuanquan |
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| Affiliation: | Wei Caixin,Assoc. Prof. , Dept. of Power Eng.,HUST,Wuhan 430074,China. Han Fengqin,Sun Jianping,Zhang Shuanquan |
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| Abstract: | The paper introduces vibrational research of big Francis Turbine under small load condi- tion. In this condition, the impulse angle is big that it is separated from water, thus the votex flow producing between blads. Votex bands take shape in draft tube. The pressure pulsation of the votex bands causes the turbine to vibrate turbine. The solutions of the alleviative vibration are presented by the test research for the small load condition. |
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| Keywords: | turbine small load condition vibration research |
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