长距离引水电站多调压井输水系统的水力过渡过程分析  

Hydraulic Transition Process Analysis of Multi-Surge Tank Long-distance Water Conveyance System of Hydropower Station

作　　者：结少鹏 乔艳伟 刘东虎 楚士冀 JIE Shao-peng;QIAO Yan-wei;LIU Dong-hu;CHU Shi-ji(Zhejiang Design Institute of Water Conservancy&Hydro-electric Power Co.,LTD,Hangzhou 310002,China;Zhejiang Qiantang River Basin Center,Hangzhou 310020,China;Hangzhou Water Group Co.,LTD,Hangzhou 310009,China;International Center on Small Hydro Power,Hangzhou 310002,China)

机构地区：[1]浙江省水利水电勘测设计院有限责任公司,浙江杭州310002 [2]浙江省钱塘江流域中心,浙江杭州310020 [3]杭州市水务集团有限公司,浙江杭州310009 [4]国际小水电中心,浙江杭州310002

出　　处：《水电能源科学》2025年第4期195-198,34,共5页Water Resources and Power

基　　金：浙江省水利厅科技计划(RB2418)。

摘　　要：基于长距离引水电站工程的基本特点,通过对比计算说明了长距离输水隧洞沿线的调压井并不是越多越好,适当减少调压井数量可以缩短输水系统的波动时间;通过分析蜗壳压力波动的影响因素,指出了蜗壳压力波动的中短周期对机组日常运行的重要性,并推导了蜗壳压力波动中短周期公式。实例应用结果表明,所提分析方法合理、有效。By analyzing the basic characteristics of long-distance water diversion power station projects,the comparative calculations shows that the more pressure regulating wells along the long-distance water conveyance tunnel are not the better,and that appropriately reducing the number of pressure regulating wells can shorten the fluctuation time of the water conveyance system.By analyzing the influencing factors of pressure fluctuations in the volute,it was pointed out the importance of the medium and short periods of pressure fluctuations in the volute for the daily operation of the unit.The formula for the medium and short periods of pressure fluctuations in the volute was derived.The application results of the example show that the proposed analysis method is reasonable and effective.

关 键 词：长距离引水 水电站 调压井 蜗壳压力 水力过渡过程 

分 类 号：TV732.55[水利工程—水利水电工程]