傍河多井水源系统水锤模拟及防护研究  

Simulation of Water Hammer in Riverside Multi-well Water Source System and Its Protection

作　　者：雷春元 杨瑞虎 王伟[2,3] 尚渝钧[2,3] 王彤 吴荣础[2,3] 刘永佳 LEI Chun-yuan;YANG Rui-hu;WANG Wei;SHANG Yu-jun;WANG Tong;WU Rong-chu;LIU Yong-jia(Xi’an Water Supply Co.Ltd.,Xi’an 710082,China;School of Civil Engineering,Chang’anUniversity,Xi’an 710061,China;Key Laboratory of Water Supply&Sewage Engineering,Chang’an University,Xi’an 710061,China)

机构地区：[1]西安市自来水有限公司,陕西西安710082 [2]长安大学建筑工程学院,陕西西安710061 [3]长安大学住房和城乡建设部给水排水重点实验室,陕西西安710061

出　　处：《中国给水排水》2022年第13期51-58,共8页China Water & Wastewater

摘　　要：针对傍河多井水源系统多水泵、多水位、多工况、多边界条件以及管道系统复杂等特点,根据水锤计算基本微分方程及相应的特征线方程,对全部水源井同时事故停泵工况进行水锤模拟,提出了气压罐+进排气阀、箱式双向调压塔+进排气阀两种水锤防护方案。工程结果表明,对于气压罐+进排气阀方案,集水干管前面部分管段和部分连接管仍有一部分管道压力超出管道承压值,存在一定的安全隐患;箱式双向调压塔+进排气阀方案,集水干管和各井连接管的水锤最大压力均控制在管道承压值之下,管道的安全运行得到了保障。Riverside multi-well water source system is characterized by multiple pumps,multiple water levels,multiple working conditions,multiple boundary conditions and complex pipeline system.According to basic differential equations and corresponding characteristic line equations for water hammer calculation,the water hammer was simulated in all wells under the condition of simultaneous shutdown of all the pumps at the same time,and two water hammer protection schemes were proposed,namely air pressure tank with intake and exhaust valve and box-type bidirectional pressure regulating tower with intake and exhaust valve.For the scheme of air pressure tank with intake and exhaust valve,the pressure of some pipe sections and some connecting pipes in front of the main pipe still exceeded the pressure value of the pipe,indicating that there were some security risks.For the scheme of box-type bidirectional pressure regulating tower with intake and exhaust valve,the maximum water hammer pressure of the main pipe and connecting pipe of each well was controlled below the pressure value of the pipeline,indicating that the safe operation of the pipe was guaranteed.

关 键 词：傍河多井水源系统 水锤 事故停泵 水力过渡过程 箱式双向调压塔 进排气阀 气压罐 

分 类 号：TU991[建筑科学—市政工程]