抽水蓄能电站输水系统取消尾水调压室研究  

Special considerations for removing a tailwater surge chamber from the waterway system in a pumped-storage plant

作　　者：张健[1] 张伟[2] 姜忠见[2] 徐跃明[2] 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]华东勘测设计研究院,浙江杭州310000

出　　处：《水利水电技术》2004年第8期115-118,共4页Water Resources and Hydropower Engineering

基　　金：水利部科技创新项目(SCX-2001-13).

摘　　要：　对河南省宝泉抽水蓄能电站输水系统取消尾水调压室方案进行了计算研究.结果表明,通过考虑机组特性、导叶关闭规律及合理整定调速器参数,虽然该抽水蓄能电站尾水道长度超过800m,取消尾水调压室方案仍是可行的.通过加大尾水隧洞断面面积,降低尾水隧洞流速,有效地抑制了输水系统过渡过程中尾水管进口负压,计算成果已作为宝泉抽水蓄能电站输水系统取消尾水调压室方案比较的重要依据之一.Special considerations were carried out for the removal of a tailwater surge chamber from the waterway system of Baoquan Pumped-storage Plant,Henan Province. Although the length of waterway for this plant is more than 800 m,it is still feasible to eliminate the surge chamber solution,taking into account its unit characteristics,guidevane closing laws and rational parameter regulations. By enlarging the tailwater tunnel section area and decreasing the current velocity of the tunnel,the suction at the draft-tube entrance can be effectively reduced. The calculation has provided a strong basis for eliminating the surge chamber solution.

关 键 词：抽水蓄能电站 输水系统 可逆式机组 调压室 稳定性 

分 类 号：TV743[水利工程—水利水电工程]