摘要
结合设置上下游双调压室的长引水式水电站输水系统的水力特性,探讨了上下游调压室的共振分析、引水道和尾水道内水体的共振分析以及水力干扰稳定性分析等特殊水力学问题,指出在合适的条件下采用取消尾水调压室的方案,可以有效改善水力—机械系统的振动特性和稳定性。进一步结合实际算例进行了取消尾水调压室的优化分析,结果表明在合适的条件下长引水式水电站中取消尾水调压室的可行性和优越性。
Based on the hydraulic characteristics of diversion-type hydropower stations with double surge tank, some special hydraulic problems are discussed, including resonance analysis of double surge tank, resonance analysis of water flow in long conduit and tail-water tunnel, and stability analysis on hydraulic disturb, furthermore, it is pointed out that the vibration characteristic and stability of hydraulic-mechanical system can be effectively improved by canceling the arrangement of tail-water surge tank under proper situation. Moreover, the optimized analysis on the canceling is conducted with a given case. The results show the feasibility and superiority to cancel the arrangement of tail-water surge tank for some diversion-type hydropower stations under proper conditions concerned.
出处
《水利水电技术》
CSCD
北大核心
2008年第4期73-75,共3页
Water Resources and Hydropower Engineering
基金
国家自然科学基金资助项目(90610027)
关键词
引水式水电站
调压室
稳定性分析
振动
diversion-type hydropower station
surge tank
stability analysis
vibration
