设有支路连接调节池的重力流长管道水锤防护
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摘要
在设有与主干管以支路形式近距离连接的调节池的长距离重力输水管道工程中,基于特征线法对管道的开关阀输水过程进行数值模拟,提出了水锤防护方案。结果表明:采用输水首先联通调节池与主干管,再依次开启管道中间阀门、上游进水端阀门、下游出水端阀门;停水在调节池与主干管保持联通情况下,首先关闭下游出水端阀门、再关闭调节池与主干管的连通阀门的操作方案,可以有效降低管路水锤压力,达到安全输水目的。
In the water delivery project by gravity with the regulating pool closely branch form connected with the trunk pipe,based on the characteristic method to simulate the long-distance water gravitational transportation process of the opening and closing valve in the pipe system. By jointing regulating-pool and trunk pipe in the beginning and then opening the middle valve of the pipeline,upstream water inlet valve,downstream outlet side of the valve in turn to delivery water,jointing regulating-pool and trunk pipe in the beginning and then close the downstream water inlet valve,close the valve between regulating-pool and trunk pipe in turn to cut off the water delivery process. These operation programs can effectively reduce the water hammer pressure to ensure the safety of water supply.
In the water delivery project by gravity with the regulating pool closely branch form connected with the trunk pipe,based on the characteristic method to simulate the long-distance water gravitational transportation process of the opening and closing valve in the pipe system. By jointing regulating-pool and trunk pipe in the beginning and then opening the middle valve of the pipeline,upstream water inlet valve,downstream outlet side of the valve in turn to delivery water,jointing regulating-pool and trunk pipe in the beginning and then close the downstream water inlet valve,close the valve between regulating-pool and trunk pipe in turn to cut off the water delivery process. These operation programs can effectively reduce the water hammer pressure to ensure the safety of water supply.
引文
[1]Kaveh Hariri Asli,Faig Bakhman Ogli Naghiyev,Akbar Khodaparast Haghi.Some aspects of physical and numerical modeling of water hammer in pipelines.Nonlinear Dynamics,2010,60(4):677-701.
[2]Saeed-Reza Sabbagh-Yazdi,Ali Abbasi,Nikos E Mastorakis.Water hammer modeling using 2nd order godunov finite volume method[C]∥Proceedings of the European Computing Conference Volume 28 of the series Lecture Notes in Electrical Engineering,2009:215-224.
[3]Don J Wood.Water hammer analysis-essential and easy and efficient[J].Journal of Environmental Engineering,2005,131:1 123-1 131.
[4]刘志勇,刘梅清,蒋劲,等.重力有压输水系统水锤及其防护研究[J].中国农村水利水电,2008,(10):79-81.
[5]诸葛妃,张健.长距离输水设置超压泄压阀水力过渡过程分析[J].水利水电技术,2010,(12):35-37.
[6]高学平,蒋琳琳,刘奕朗,等.长距离重力流输水管道水锤压力数值模拟[J].南水北调与水利科技,2012,(6):6-9,41.
[7]董茹,杨玉思,葛光环,等.关阀程序对分支线重力流输水系统水锤升压的影响[J].中国给水排水,2016,(11):50-54.
[8]葛光环,寇坤,张军,等.断流弥合水锤最优防护措施的比较与分析[J].中国给水排水,2015,(1):52-55,60.
[9]薛长青,叶焰中,李良庚,等.长距离有压管道输水系统的停泵水锤安全防护及优化[J].中国农村水利水电,2016,(8):205-208.
[10]CECS_193-2005,城镇输水长距离输水管(渠)道工程技术规程[S].
[2]Saeed-Reza Sabbagh-Yazdi,Ali Abbasi,Nikos E Mastorakis.Water hammer modeling using 2nd order godunov finite volume method[C]∥Proceedings of the European Computing Conference Volume 28 of the series Lecture Notes in Electrical Engineering,2009:215-224.
[3]Don J Wood.Water hammer analysis-essential and easy and efficient[J].Journal of Environmental Engineering,2005,131:1 123-1 131.
[4]刘志勇,刘梅清,蒋劲,等.重力有压输水系统水锤及其防护研究[J].中国农村水利水电,2008,(10):79-81.
[5]诸葛妃,张健.长距离输水设置超压泄压阀水力过渡过程分析[J].水利水电技术,2010,(12):35-37.
[6]高学平,蒋琳琳,刘奕朗,等.长距离重力流输水管道水锤压力数值模拟[J].南水北调与水利科技,2012,(6):6-9,41.
[7]董茹,杨玉思,葛光环,等.关阀程序对分支线重力流输水系统水锤升压的影响[J].中国给水排水,2016,(11):50-54.
[8]葛光环,寇坤,张军,等.断流弥合水锤最优防护措施的比较与分析[J].中国给水排水,2015,(1):52-55,60.
[9]薛长青,叶焰中,李良庚,等.长距离有压管道输水系统的停泵水锤安全防护及优化[J].中国农村水利水电,2016,(8):205-208.
[10]CECS_193-2005,城镇输水长距离输水管(渠)道工程技术规程[S].