二次供水系统低位水池浮球阀启闭对市政供水管网安全的影响  

Influence of the action of tank float valve in the secondary water supply system on water distribution system safety

作　　者：盛炟 许仕荣[1] 徐秋红 唐仲民 SHENG Da;XU Shirong;XU Qiuhong;TANG Zhongmin(College of Civil Engineering,Hunan University,Changsha 410082,China;Zhuzhou Southern Valve Co.,Ltd.,Zhuzhou 412000,China;Hengyang Water Investment Group Co.,Ltd.,Hengyang 421000,China)

机构地区：[1]湖南大学土木工程学院,长沙410082 [2]株洲南方阀门股份有限公司,株洲412000 [3]衡阳市水务投资集团有限公司,衡阳421000

出　　处：《给水排水》2021年第6期127-132,共6页Water & Wastewater Engineering

基　　金：国家重点研发计划项目(2016YFC0400604)。

摘　　要：低位水池作为二次供水系统的蓄水设施,其入口浮球阀的启闭会使管道中出现水力瞬态过程。瞬变流造成供水管网的压力波动,增加了管网系统的水力负荷。以南方某市HX区供水管网为研究对象,通过浮球阀启闭时的瞬态过程模拟,分析供水管网压力波动情况,证明了低位水池入口浮球阀的启闭会造成供水管网中大幅、频繁的压力波动,提出了针对浮球阀启闭引发瞬态过程的供水管网防护措施,以减小其危害。Tank acts as a water storage facility for the secondary water supply system,and the action of the float valve causes a hydraulic transient process in the pipeline.Transient flow causes pressure fluctuations in the water supply network and increases the hydraulic load on the network system.In this research,the water supply network of HX district in Southern China was taken as the research object.By simulating the transient process caused by float valve closing or opening,the pressure fluctuation of the pipe network was analyzed,and then the fact that the behavior of float valve could cause heavy and frequent pressure fluctuation in water supply network was proved.Correspondingly,an effective measure was proposed to reduce the harm taken by float valve.

关 键 词：二次供水 蓄水池 浮球阀 瞬变流 供水管网安全 

分 类 号：TU991[建筑科学—市政工程]