电厂循环水供水系统事故水锤过程的仿真研究  

Simulation on the transition process of accidental water hammer of circular water supply system in power plant

作　　者：贲岳[1] 高学贞[1] 韩磊[1] 张东文[1] 郑冠军[1] 侯付彬[1] 王丽华[1] 

机构地区：[1]国核电力规划设计研究院水务部,北京100080

出　　处：《供水技术》2009年第5期26-29,共4页Water Technology

摘　　要：针对某电厂循环水供水系统的特点,应用AFTImpulseTM4.0动态流体分析软件,对系统事故停泵水力过渡过程进行了计算机仿真,对泵出口阀不同关阀规律对应的过渡过程进行了比较分析,得出了较理想的关阀规律。仿真结果表明,最大水锤升压发生在三泵并联同时事故关阀,但此种情况发生概率较小,而停泵水锤概率较高,且关阀规律选择不当时对应的工况压力变化较大。经计算机仿真计算得出的结论对提高电厂循环水系统的可靠性和运行稳定性具有一定的意义。In accordance with the characteristic of circular water supply system in power plant, applying the dynamic fluid analysis soft of AFT ImpulseTM 4.0, computer simulation was made on the transition process of accidental pump-stop. The transition process corresponding to different closing valve regulations was compared and perfect closing valve rules were obtained. The simulation results showed that the maximal water hammer pressure arised from three parallel connection valves closing simultaneously, but this occurred little than three parallel connection pumps stopped and the unapt closing valve regulation could make water hammer pressure arise. The conclusion had important practice significance to improve reliability and stability of circular water supply system in power plant.

关 键 词：循环水系统 水锤 仿真 

分 类 号：TK730.4[交通运输工程—轮机工程]