摘要
长距离输水工程一般具有扬程较高、起伏严重的特点,再加上地形条件复杂,很容易产生较为严重的水锤现象,尤其是断流弥合水锤;基于密云水库调蓄工程中雁栖泵站至溪翁庄泵站段有压管道输水工程,结合计算机软件对事故停泵水锤进行了模拟计算分析,并检验了既有水锤防护措施的防护效果,分析结果表明,采用复合式进气排气阀和液控缓闭止回阀的组合方案可以实现对该工程管道系统水锤的有效防护。
Water hammers of cavities collapsing with water column separation often occur in the longdistance pressure water transmission pipe line system with high-lift and multi-fluctuation. In this paper, the water hammer simulation calculation of a section from Yanxi Pump Station to Xi Wengzhuang Pump Station many ups and downs in the Miyun Reservoir Storage Project is carried out. According to the simula- tion results, the effective water hammer protection measures are selected to improve the safety of the water delivery system. The results show that the effective protection of the pipeline system can be realized by the combination of the combined intake and exhaust valve and liquid controlled slow closing check valve.
出处
《中国农村水利水电》
北大核心
2017年第5期202-206,共5页
China Rural Water and Hydropower
基金
北京市科技计划课题项目"密云水库调蓄工程梯级泵站实时调度模型算法开发与应用"(Z141100006014049)
国家自然科学基金项目"复杂调水工程对明渠反向输水响应机制研究"(51609258)
关键词
密云水库调蓄工程
输水管道
水锤
空气阀
计算机模拟
Miyun Reservoir Storage Project
water transmission pipeline
water hammer
air value
computer simulation
