长距离重力流供水管线末端阀门关闭的过渡过程分析  

Analysis of Transition Process of Closing Valve at End of Long Distance Gravity Flow Water Supply Line

作　　者：卜新魁[1] PU Xinkui(Jilin Province Water Resource and Hydropower Consultative Company,Changchun Jilin 100012)

机构地区：[1]吉林省水利水电勘测设计研究院,吉林长春100012

出　　处：《河南科技》2020年第31期67-69,共3页Henan Science and Technology

摘　　要：随着社会的发展,长距离供水工程越来越多,人们对长距离供水的过渡过程计算也愈加重视。重力流输水管道因无水泵加压,故无停泵水锤危害。但是,其管线末端阀门关闭过快也会导致输水系统出现很高的水锤压力,在有多重起伏管线的高点容易产生断流,造成弥合水锤,严重影响管线及阀门等设备的安全。本文结合工程实例,对长距离重力流供水管线末端阀门关闭的过渡过程进行分析,并提出相应的防护措施。With the development of society,more and more long-distance water supply projects,people pay more attention to the calculation of long-distance water supply transition process.Because there is no pump pressurization in gravity flow pipeline,there is no water hammer hazard of pump stop.However,if the valve at the end of the pipeline is closed too fast,the water hammer pressure in the water delivery system will be very high,and the high point of the pipeline with multiple ups and downs is easy to produce flow interruption,resulting in the closure of water hammer,seriously affecting the safety of pipelines and valves and other equipment.This paper analyzed the transition process of closing the valve at the end of the long distance gravity flow water supply line and put forward the corresponding protection measures.

关 键 词：长距离重力流供水 水击泄放阀 水力过渡过程 

分 类 号：TV134.1[水利工程—水力学及河流动力学]