摘要
介绍带有气垫式调压室和溢流式调压井的有压引水系统的数值解法。针对某一实际工程计算了调压井及气压室的水位波动、调压井溢流量、气压室的压力变化及高压管道的水击压力，讨论了气垫式调压室内的初始气体压力及体积对压力及水位波动的影响。结果表明，气压室内初始气压（或水位）的选择对系统的安全运行至关重要。
A numerical algorithm is presented for the diversion system with an air curshion chamber and an overflow surge shaft.In an example of a practical project,the changes of water level in the air chamber and surge shaft,and the changes of pressures in the chamber and penstock are calculated.The effect of the initial air pressure and air volume in the chamber on the fluctuations of pressure and changes of water level is discussed.It is indicated that it is important to choose the initial control water level in the air chamber for the safe operation of the system.
出处
《水利水电科技进展》
CSCD
1998年第5期22-25,共4页
Advances in Science and Technology of Water Resources
关键词
引水系统
气垫式调压室
溢流式调压井
水力计算
pressure diversion system
air cushion chamber
overflow surge shaft
numerical method
