| 大水头变幅工况下混流式水轮机尾水管水压力脉动分析 |
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| 引用本文： | 吴钢,韦彩新,张克危,宋立人.大水头变幅工况下混流式水轮机尾水管水压力脉动分析[J].发电设备,2000(4):22-27. |
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| 作者姓名： | 吴钢 韦彩新 张克危 宋立人 |
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| 作者单位： | 1. 华中理工大学,湖北 武汉 430074
2. 中国长江三峡工程开发总公司机电处,湖北 宜昌 443002 |
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| 基金项目： | 国家“九五”攀登计划预选项目资助 !(编号 :PD95 2 190 7) |
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| 摘 要： | 该文分析了在水头变幅较大的工况下混流式水轮机尾水管压力脉动与转轮出口环量及单位参数之间的关系。以三峡水电站水轮机运行工况为模拟条件进行了混流式水轮机尾水管压力脉动试验研究。研究结果表明 ,适当选定混流式水轮机额定参数对减轻尾水管水压力脉动是十分有效的。图 4表 2参 7
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| 关 键 词： | 混流式水轮机 尾水管 压力脉动 变幅工况 分析 |
| 修稿时间： | 1999年10月15日 |
Study of Pressure Fluctuations in Draft Tubes of Francis TypeHydraulic Turbines under Strong Water Head Varying Conditions |
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| WU Gang ,WEI Cai xing ,ZHANG Ke wei ,SHONG Li ren.Study of Pressure Fluctuations in Draft Tubes of Francis TypeHydraulic Turbines under Strong Water Head Varying Conditions[J].Power Equipment,2000(4):22-27. |
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| Authors: | WU Gang WEI Cai xing ZHANG Ke wei SHONG Li ren |
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| Affiliation: | WU Gang 1,WEI Cai xing 1,ZHANG Ke wei 1,SHONG Li ren 2 |
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| Abstract: | The paper discusses the relationship between pressure fluctuations in draft tubes of francis turbines and the circulation existing at the runners' exit on one hand and the turbines' parameters on the other hand under condition of considerable water head changes. Experimental studies on pressure fluctuation in draft tubes of Francis turbines have bean conducted, simulating operating conditions of the Three Gorges Hydraulic Power Station's turbines. The study results show that the proper choise of parameters at rated conditions is guite effective for mitigating pressure fluctuations in draft tubes of Frencis type hydraulic turbines. |
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| Keywords: | francis turbine draft tube pressure fluctuation varying operating condition study |
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