摘要
采用瞬变流计算方法,论证了博瓦水电站不良地质条件下采用尾闸室替代尾水调压室设计方案的可行性,给出了水力计算原理和计算内容。博瓦水电站尾闸室替代尾水调压室后电站调节保证计算满足设计规范要求,机组丢弃负荷后的尾水管最大真空度3.30 m,电站输水系统小波动是稳定的。尾闸室替代尾水调压室可以避免不良地质条件下大尺寸尾水调压室开挖带来的施工风险。
Transient flow calculation method is used to prove Bowa Hydropower Station can replace tailwater surge chamber as the draft tube gate chamber is practical and calculation results meet the requirements of design standard,the maximum vacuum degree of hydroturbine draft tube after load rejection is 3.3.m,and little fluctuation in water-diversion system is stable. In large size tailwater surge chamber construction,replaced tailwater surge chamber as draft tube gate chamber can avoid the risk of excavation under unfavorable geological condition.
作者
张作栋
鞠小明
刘期勇
ZHANG Zuo-dong;JU Xiao-ming;LIU Qi-yong(College of Water Resource and Hydropower,Siehuan University,Chengdu 610065,China;State Key Laboratory of Hydraulics and Mountain River Engineering,Siehuan University,Chengdu 610065,China;Siehuan Qingyuan Engineering Consulting Co.Ltd.Chengdu 610072,China)
出处
《中国农村水利水电》
北大核心
2018年第10期186-190,共5页
China Rural Water and Hydropower
关键词
尾闸室
尾水调压室
水轮机尾水管真空度
调保计算
小波动稳定性
draft tube gate chamber
tailwater surge chamber
vacuum degree of hydroturbine draft tube
calculation of regulationguarantee
stability of little fluctuation
