长管道输水系统停泵水力过渡过程分析与防护  

An Analysis of Pump-stopping Hydraulic Transient in Long-pipe Water Supply System and Its Protection

作　　者：林琦[1] 刘志勇[1] 刘梅清[1] 李秋玮[1] 

机构地区：[1]武汉大学动力与机械学院,武汉430072

出　　处：《中国农村水利水电》2011年第2期139-141,共3页China Rural Water and Hydropower

基　　金：国家自然科学基金资助项目(50879062)

摘　　要：阐述了长管道输水系统停泵水力过渡过程的特点,结合工程实例,建立了泵出口阀关闭程序的优化模型,并采用遗传算法对模型进行了求解。应用特征线法对事故停泵后的水力过渡过程进行了计算分析,对空气阀和单向调压塔的防护效果进行了数值模拟和比较,提出了相应的水锤防护措施。The characteristics of pump-stopping hydraulic transient in long-pipe water supply systems are expounded in this paper.Genetic Algorithm method is used by combining examples The optimization model of close program on pump outlet valve is established.Then the pump-stopping hydraulic transients are calculated and analyzed,the protecting effect of the air valve and the one-way surge tank simulated and compared by using the characteristic line method and presenting the protective measures for water hammer.

关 键 词：长管道输水系统 停泵水力过渡过程 关阀程序 空气阀 单向调压塔 

分 类 号：TU991.39[建筑科学—市政工程]