一种新型阻尼阻抗式调压室实验研究  

Experimental Research on a New Type of Damped Impedance Surge Chamber

作　　者：漆智鹏 鞠小明[1,2] QI Zhi-peng;JU Xiao-ming(College of Water Conservancy and Hydropower,Sichuan University,Chengdu 610065,Sichuan;State Key Laboratory of Hydraulics and Mountain River Development and Protection,Sichuan University,Chengdu 610065,Sichuan)

机构地区：[1]四川大学水利水电学院,成都610065 [2]四川大学水力学与山区河流开发保护国家重点实验室,成都610065

出　　处：《中国农村水利水电》2019年第8期217-220,共4页China Rural Water and Hydropower

摘　　要：在传统阻抗式调压室的基础上,提出了一种新型阻尼阻抗式调压室,介绍了阻尼阻抗式调压室的结构特点与工作原理。采用模型试验的方法分析比较了传统阻抗式调压室和新型阻尼阻抗式调压室的水力性能。实验结果显示,对比传统阻抗式调压室,新型阻尼阻抗调压室能够在增加少量压力管道水锤压力的情况下,极大降低机组甩负荷后的调压室最高和最低涌浪水位波动振幅,并能使得调压室的水位波动快速衰减稳定,可以较多降低调压室的设计高度,提高了调压室的运行稳定性和经济性。A new type of surge chamber called damped impedance surge chamber is proposed based on the structure of throttled surge chamber.The structure characteristics and operation principle of this damped impedance surge chamber are introduced.Hydraulic performance especially in surge fluctuation and water hammer of the traditional throttled surge chamber and this new damped impedance surge chamber are analyzed and compared by using an experimental model to test.Compared to the traditional throttled surge chamber,the experimental results show that this new damped impedance surge chamber will appropriately increase the water hammer pressure in penstock and reduce the amplitude greatly between maximum water level and minimum water level of surge chamber after load rejection,which makes the water fluctuation duration decline and shorter,reducing the height of designed surge chamber,improving the operation stability and save cost of the surge chamber.

关 键 词：阻尼 阻抗式调压室 水位波动 水锤压力 水力性能 实验研究 

分 类 号：TV732.5[水利工程—水利水电工程]