水电站调压井快速闸门稳定性及安全防范措施研究  

Research on Stability and Safety Precautions of Surge Tank Stop Gate for Hydropower Station

作　　者：赵建平[1,2] 张维杰[1,2] 严根华[1,2] 胡去劣[1,2] 

机构地区：[1]南京水利科学研究院,江苏南京210029 [2]水文水资源与水利工程科学国家重点实验室,江苏南京210029

出　　处：《水力发电》2016年第2期70-74,122,共6页Water Power

摘　　要：水电站长管道引水发电系统调压室快速闸门是确保机组出现甩负荷等故障时快速断流的重要设备,确保其安全运行具有举足轻重的作用和地位。研究了调压井阻抗孔体型尺寸布置和快速闸门稳定性之间的相互关系,揭示了调压井阻抗孔体型布置对快速闸门安全稳定的主要影响因素及其变化规律,指出了快速闸门动力失稳的原因,提出了确保快速闸门动力稳定的控制方法和安全保障措施。The surge-chamber stop gate of diversion and power system of hydropower station is an important device to ensure quick stop when a failure happens on power units and plays a decisive role to ensure the safe operation of units. The relationship between impedance hole size of surge tank and the stability of stop gate is studied herein, which reveals the main influence factors and change rules of impedance hole size on the security and stability of stop gate and points out the reason of dynamic instability of stop gate. The control methods and safety precautions to ensure dynamic stability of stop gate are put forward.

关 键 词：调压井 阻抗孔 快速闸门 流激振动 水电站 

分 类 号：TV663[水利工程—水利水电工程]