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
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。
关键词：二次供水蓄水池浮球阀瞬变流供水管网安全
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参考文献[1] LI H,YANG Y,ZHAO J F,et al.Influence of secondary water supply systems on microbial community structure and opportunistic pathogen gene markers[J].Water research,2018,136(6):160-168．
[2] 智研咨询集团．2017-2023年中国二次供水行业市场专项分析及发展前景预测报告[R].2017:64-65．
[3] 邓佑锋，许仕荣，徐洪福．管网叠压供水与市政供水管网的相互影响研究[J]．中国给水排水，2012,28(17):52-55．
[4] 谢善斌，周玉文．基于瞬变流动分析的给水管网事件模型[J]．给水排水，2008,34(4):109-112．
[5] 黄时锋，周文萍，程佳秋．水厂原水输水管道系统潜在水锤危害分析[J]．给水排水，2014,40(5):150-154．
[6] 张毅鹏，刘梅清，刘志勇，等．长距离输水管线事故停泵水锤防护方法分析[J]．中国农村水利水电，2018(8):198-203．
[7] 陈林．气井多相流水击数学模型的建立和求解[J]．石油学报，2017,38(7):813-820．
[8] POUR M J,NOURI A,CHAN D.Numerical modelling of waterhammer pressure pulse propagation in sand reservoirs[J].Journal of Petroleum Science&Engineering,2016,137:42-54．
[9] SAVIC D,KAPELAN Z,MAHMOUD H A.Real-Time operational response methodology for reducing failure impacts in water distribution systems[J].Journal of Water Resources Planning and Management,2018,144(7):1943-5452．
[10] BOUAZIZ M A,GUIDARA M A,SCHMITT C.Water hammer effects on a gray cast iron water network after adding pumps[J].Engineering failure analysis,2014,44:1-16．
[11] HAMDY A.El-GHANDOUR,AMGAD S.Elansary.Optimal selection of pressure relief valve parameters for surge pressure control in water distribution systems[J].Urban Water Journal,2019,16(4):269-276.
[2] 智研咨询集团．2017-2023年中国二次供水行业市场专项分析及发展前景预测报告[R].2017:64-65．
[3] 邓佑锋，许仕荣，徐洪福．管网叠压供水与市政供水管网的相互影响研究[J]．中国给水排水，2012,28(17):52-55．
[4] 谢善斌，周玉文．基于瞬变流动分析的给水管网事件模型[J]．给水排水，2008,34(4):109-112．
[5] 黄时锋，周文萍，程佳秋．水厂原水输水管道系统潜在水锤危害分析[J]．给水排水，2014,40(5):150-154．
[6] 张毅鹏，刘梅清，刘志勇，等．长距离输水管线事故停泵水锤防护方法分析[J]．中国农村水利水电，2018(8):198-203．
[7] 陈林．气井多相流水击数学模型的建立和求解[J]．石油学报，2017,38(7):813-820．
[8] POUR M J,NOURI A,CHAN D.Numerical modelling of waterhammer pressure pulse propagation in sand reservoirs[J].Journal of Petroleum Science&Engineering,2016,137:42-54．
[9] SAVIC D,KAPELAN Z,MAHMOUD H A.Real-Time operational response methodology for reducing failure impacts in water distribution systems[J].Journal of Water Resources Planning and Management,2018,144(7):1943-5452．
[10] BOUAZIZ M A,GUIDARA M A,SCHMITT C.Water hammer effects on a gray cast iron water network after adding pumps[J].Engineering failure analysis,2014,44:1-16．
[11] HAMDY A.El-GHANDOUR,AMGAD S.Elansary.Optimal selection of pressure relief valve parameters for surge pressure control in water distribution systems[J].Urban Water Journal,2019,16(4):269-276.
Influence of the action of tank float valve in the secondary water supply system on water distribution system safety
Abstract: 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.
Keywords: Secondary water supply; Tank; Float valve; Transient flow; Distribution network security;
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