山地城镇长距离串联增压输水系统水锤防护  

Water Hammer Prevention in Long Distance Serial Pressurized Water Transfer System in Mountain Town

作　　者：王颖 王圃[2] 郑怀礼[2] 周志强 曾国明 WANG Ying;WANG Pu;ZHENG Huai-li;ZHOU Zhi-qiang;ZENG Guo-ming(General Architectural Planning & Design Research Institute of Chongqing University Co. Ltd.,Chongqing 400045 , China;College of Urban Construction and Environmental Engineering,Chongqing University, Chongqing 400045 , China;School of Civil Engineering and Architecture,Chongqing University of Science and Technology, Chongqing 401331 , China)

机构地区：[1]重庆大学建筑规划设计研究总院有限公司,重庆400045 [2]重庆大学城市建设与环境工程学院,重庆400045 [3]重庆科技学院建筑工程学院,重庆401331

出　　处：《中国给水排水》2019年第13期53-56,共4页China Water & Wastewater

基　　金：国家重点研发计划项目(2017YFC0404706-1)

摘　　要：山地城镇长距离串联增压输水系统的水锤特性不同于传统的单级泵站输水系统,基于实际工程案例中出现的水锤爆管等问题,分析了输水系统水锤的成因及其过程,提出采用流量控制阀合理分配多个不同高程高位水池的水量,采取超压泄压阀和注气微排阀综合防护措施消除失电停泵引起的断流弥合水锤,这些措施可提高串联增压输水系统的安全可靠性。The characteristics of water hammer in long distance serial pressurized water transfer system are different from those in single-stage pumping station. The causes and the processes of the water hammer in the system were analyzed based on problems in the real project case, such as pipe burst. It was suggested to use flow control valves to properly distribute the water volumes in reservoirs of different elevations. The water hammer of cavities collapsing caused by tripping pump due to electric supply failure was eliminated using overpressure relief valves and gas injection micro-discharge valves. These measures could improve the safety and reliability of the series pressurized water transfer system.

关 键 词：串联增压输水系统 水锤防护 流量控制阀 注气微排阀 超压泄压阀 

分 类 号：TU991[建筑科学—市政工程]