高水头抽水蓄能电站机组冷却水系统压力振荡  

Pressure Oscillation in Cooling Water System of High Head Pump-generating Unit

作　　者：曲道志 周振忠 王雨会 

机构地区：[1]中国水电顾问集团北京勘测设计研究院,北京100024

出　　处：《水力发电》2012年第8期58-60,96,共4页Water Power

摘　　要：以某水电站尾水波动测试结果为例,说明了高水头蓄能机组负荷的大、小波动会造成尾水压力不稳定,从而导致从尾水取水的机组冷却水系统中存在高频压力振荡,影响冷却水系统安全运行。针对与此,对于尾水波动压力可能超过120 m的电站,为保证电站安全运行,提出了了合理化建议及解决措施。The actual test on tailrace fluctuations of a pumped-storage power station shows that the load fluctuation of high- head storage unit can cause the instability of tailrace pressure, and thus leads a high-frequency pressure oscillation in the cooling water system of unit which withdraws water from tailrace. The high-frequency pressure oscillation will threaten the safe operation of cooling water system. Therefore, for a pumper-storage power station with a fluctuation of tailrace pressure more than 120 m water head, the solutions are proposed for solving above problem and ensuring the safe operation.

关 键 词：波动 机组冷却水系统 高频压力振荡 高水头 抽水蓄能电站 

分 类 号：TV743[水利工程—水利水电工程]