| 水轮机运行区划分研究 |
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| 引用本文： | 王正伟,秦亮,曾季弟,林家洋,肖明,刘定友,孔德铭.水轮机运行区划分研究[J].水力发电学报,2009,28(2). |
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| 作者姓名： | 王正伟 秦亮 曾季弟 林家洋 肖明 刘定友 孔德铭 |
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| 作者单位： | 王正伟,秦亮,WANG Zhengwei,QIN Liang(清华大学水沙科学与水利水电工程国家重点实验室、清华大学热能系,北京,100084);曾季弟,林家洋,ZENG Jidi,LIN Jiayiang(福建水口发电有限公司,福州,350800);肖明,刘定友,孔德铭,KONG Deming,LIU Dingyou,XIAO Ming(水浪底水力发电厂,河南,济源,454681)
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| 摘 要： | 鉴于机组运行区划分的复杂性及重大工程应用背景,本文对影响机组运行安全性的宏观指标量及常见水力原因进行分析.在此基础上,结合工程实例分别对小浪底电站混流式机组与水口电站同一种型式两台轴流转桨式机组的运行区划分原则及方法进行深入探讨.对于小浪底混流式机组,对其振动脉动各量进行相关分析,从而找到影响机组运行安全性的最为主要因素--尾水脉动,以此来作为划分的主要依据.而鉴于水口电站轴流转桨机组水压力脉动幅值较小的特点,采取以监测数据依据,结合流场与结构场计算结果对机组各运行区运行状况进行综合评定的方法.研究表明,划分出来的运行区既可反映综合运行性能,又可使得机组避开直接影响安全运行的危险区域,使电站安全运行中既有依据更有利可获.
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| 关 键 词： | 水力机械 运行区 相关分析 水压力脉动 动应力 |
Partition of hydroturbine operating regions |
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| WANG Zhengwei,QIN Liang,ZENG Jidi,LIN Jiayiang,KONG Deming,LIU Dingyou,XIAO Ming.Partition of hydroturbine operating regions[J].Journal of Hydroelectric Engineering,2009,28(2). |
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| Authors: | WANG Zhengwei QIN Liang ZENG Jidi LIN Jiayiang KONG Deming LIU Dingyou XIAO Ming |
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| Affiliation: | 1.Stake Key Laboratory of Hydroscience and Engineering & Department of Thermal Engineering;Tsinghua University;Beijing 100084;2.Fujian Shuikou Hydropower Generation Co.;Ltd;Fuzhou 350800;3.Xiaolangdi Hydropower Plant;Jiyuan;Henan Province 454681 |
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| Abstract: | The operating states of hydroelectric generating units vary widely with operating conditions which can greatly affect their stability and lifetime.This paper presents an analysis of most crucial hydraulic parameters which affect the operating stability.The partitioning method of the operating regions are discussed for the large Francis turbines in the Xiaolangdi Hydropower Plant and two large Kaplan turbines in the Shuikou Hydropower Plant.Correlation analysis of measured data for the Francis turbine units ... |
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| Keywords: | hydraulic machinery operating regions correlation analysis pressure fluctuations dynamic stress |
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