摘要
针对长距离有压输水管道出口阀关闭引起的水锤问题,采用瞬态水力学理论和仿真计算,以大岩坑水电站为例,对采用调压井配合控制出口闸门关闭长管道有压输水系统的水力过渡过程进行了计算和分析。结果表明,优化闸门的关闭时间和关闭方式能有效降低水击压力。
Aimed at the problem of water hammer caused by closed export gate at long pressure pipe water system, using the water-hammer theory and calculation and analysis of water hammer protection to the pipeline system, combined with a practical project, with emphasis on the use of Surge shaft with the control of the export gate closing time and closing way as as water hammer protective measures. The simulating results show that by controlling the gate closing time and closing ways to more effectively carry out water hammer protection.
出处
《水电能源科学》
北大核心
2010年第2期82-84,共3页
Water Resources and Power
基金
国家自然科学基金资助重点项目(50839003)
云南省自然科学基金资助项目(2008GA027
2009ZC035M)
关键词
压力管道
水力计算
水击压力
闸门关闭时间
闸门关闭方式
penstock
hydraulic calculation
pressure of water hammer
gate closing time
gate closed mode
