水击穿室系数的主要影响因素分析  

Analysis on the Major Influencing Factors of the Coefficient of Water Hammer Pressure Passing through the Bottom of Throttled Surge Chamber

作　　者：王利卿 马跃先[2] 吴昊[3] 原文林[2] 

机构地区：[1]河南省郑州水利学校,河南郑州450008 [2]郑州大学环境与水利学院,河南郑州450002 [3]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《水力发电》2011年第3期38-41,共4页Water Power

基　　金：国家博士后科学基金项目(20100471007)

摘　　要：针对水库调压室阀门引水系统,用特征线法计算分析了不同阻抗孔面积和引水隧洞面积情况下阀门端水击压力上升率和水击穿室系数的变化规律。通过对实例进行对比,说明阻抗式调压室不能完全反射水击波,阻抗孔面积和引水隧洞面积对水击压力、水击穿室系数影响较大,应加以考虑。By using characteristic line method to analyze the hydraulic transient process of a typical reservoir-surge chamber-valve system, the water hammer pressures at valve and the coefficient of pressure transmission were calculated under the conditions of different areas of diversion tunnel and the throttling orifice. The case study shows that the throttled surge chamber can not fully reflect the water hammer wave and the areas of orifice and diversion tunnel have greater impact on water hammer pressure and coefficient of pressure transmission.

关 键 词：水击压力 阻抗式调压室 穿室系数 

分 类 号：TV134.1[水利工程—水力学及河流动力学] TV732.5