基于管网漏失控制的供水管网模型研究
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摘要
针对传统水力模型构建过程中忽略压力对节点流量影响的问题,将节点流量分为节点用水量和节点漏失水量两部分,并构建压力与两类节点水量的关系式,建立压力驱动节点流量的水力模型。在实际管网的模拟过程中,以计算漏失水量与实际漏失水量之差构建适应度函数,通过遗传算法计算管网漏失系数,利用EPANET软件中扩散器(EMITTER)模拟节点漏失水量,实现压力驱动节点流量模型的求解。结果表明,本文建立的压力驱动节点流量模型模拟结果更符合实际管网运行工况,可以用于管网漏失控制研究。
In the traditional hydraulic model,the impact of pressure has been ignored. To resolve this issue,nodes flow is divided into node water consumption and node leakage. What's more,the influence of pressure on the two kinds of water quantity of nodes is put into a formulation. With this,the pressure-driven node flow model can be established. In the simulation process of the water supply network,to calculate the leakage rate by genetic algorithm,a fitness function is constructed by calculating the difference between calculated leakage and actual leakage.Using the EMITTER in EPANET software to simulate the node leakage,in this work,the pressure-driven node flow model is numerically solved. Our results show that the simulation data of the pressure-driven node flow model established in this paper are more in line with the actual operating conditions of the pipe network,so our present work can be applied to the leakage control.
In the traditional hydraulic model,the impact of pressure has been ignored. To resolve this issue,nodes flow is divided into node water consumption and node leakage. What's more,the influence of pressure on the two kinds of water quantity of nodes is put into a formulation. With this,the pressure-driven node flow model can be established. In the simulation process of the water supply network,to calculate the leakage rate by genetic algorithm,a fitness function is constructed by calculating the difference between calculated leakage and actual leakage.Using the EMITTER in EPANET software to simulate the node leakage,in this work,the pressure-driven node flow model is numerically solved. Our results show that the simulation data of the pressure-driven node flow model established in this paper are more in line with the actual operating conditions of the pipe network,so our present work can be applied to the leakage control.
引文
[1]张土乔,邵煜.城镇供水管网漏损监测与控制技术及应用[J].中国环境管理,2017,9(2):109-110.
[2]MAMBRETTI S.Evolutionary optimization for water losses recognition in water supply networks[J].Eur J Environ Civil Eng,2015,19(8):976-999.
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[4]陈玲俐,李杰.供水管网渗漏分析研究[J].地震工程与工程振动,2003,23(1):115-121.
[5]VITKOVSKY J P,LIGGETT J A,SIMPSON A R,et al.Optimal measurement site locations for inverse transient analysis in pipe networks[J].J Water Res Plan Manag,2003,129(6):480-492.
[6]ZYL J E V,CLAYTON C.The effect of pressure on leakage in water distribution systems[J].Proc ICE-Water Manag,2007,160(2):109-114.
[7]王丽娟,张宏伟.供水管网漏失模型研究[J].中国给水排水,2010,26(9):68-70.
[8]张飞凤.供水管网优化压力控制漏失研究[D].哈尔滨:哈尔滨工业大学,2012.
[9]乔怡超.供水管网减压阀优化控制漏失研究[D].哈尔滨:哈尔滨工业大学,2014.
[10]高金良,姚芳,叶健.考虑漏失和用户用水的供水管网PDD模型构建及应用[J].哈尔滨工业大学学报,2017,49(2):49-53.
[11]WU Z Y,BURROWS R,MOORCROFT J,et al.Pressure-dependent leakage detection method compared with conventional techniques[J].Water Res Manag,2010,24(6):1083-1092.
[12]SAVIC D A,WALTERS G A.Integration of a model for hydraulic analysis of water distribution networks with an evolution program for pressure regulation[J].Comput Civil Infras Eng,2010,11(2):87-97.
[13]AINOLA L,KOPPEL T,TIITER K,et al.Water network model calibration based on grouping pipes with similar leakage and roughness estimates[C]//Joint Conference on Water Resource Engineering and Water Resources Planning and Management,2000:1-9.
[14]中华人民共和国住建部.CJJ 92-2016城市供水管网漏损控制及评定标准,2016.
[15]THORNTON J,LAMBERT A.Progress in practical prediction of pressure:leakage,pressure:burst frequency and pressure:consumption relationships[C].IWA Specialized Conference“Leakage 2005”Proceedings,Halifax,Canada,2005.
[16]WU Z Y,SAGE P,TURTLE D.Pressure-dependent leak detection model and its application to a district water system.[J].JWater Res Plan Manag,2010,136(1):116-128.
[2]MAMBRETTI S.Evolutionary optimization for water losses recognition in water supply networks[J].Eur J Environ Civil Eng,2015,19(8):976-999.
[3]张敏.城市供水管网基于压力驱动节点流量模型漏失控制的研究[D].哈尔滨:哈尔滨工业大学,2009.
[4]陈玲俐,李杰.供水管网渗漏分析研究[J].地震工程与工程振动,2003,23(1):115-121.
[5]VITKOVSKY J P,LIGGETT J A,SIMPSON A R,et al.Optimal measurement site locations for inverse transient analysis in pipe networks[J].J Water Res Plan Manag,2003,129(6):480-492.
[6]ZYL J E V,CLAYTON C.The effect of pressure on leakage in water distribution systems[J].Proc ICE-Water Manag,2007,160(2):109-114.
[7]王丽娟,张宏伟.供水管网漏失模型研究[J].中国给水排水,2010,26(9):68-70.
[8]张飞凤.供水管网优化压力控制漏失研究[D].哈尔滨:哈尔滨工业大学,2012.
[9]乔怡超.供水管网减压阀优化控制漏失研究[D].哈尔滨:哈尔滨工业大学,2014.
[10]高金良,姚芳,叶健.考虑漏失和用户用水的供水管网PDD模型构建及应用[J].哈尔滨工业大学学报,2017,49(2):49-53.
[11]WU Z Y,BURROWS R,MOORCROFT J,et al.Pressure-dependent leakage detection method compared with conventional techniques[J].Water Res Manag,2010,24(6):1083-1092.
[12]SAVIC D A,WALTERS G A.Integration of a model for hydraulic analysis of water distribution networks with an evolution program for pressure regulation[J].Comput Civil Infras Eng,2010,11(2):87-97.
[13]AINOLA L,KOPPEL T,TIITER K,et al.Water network model calibration based on grouping pipes with similar leakage and roughness estimates[C]//Joint Conference on Water Resource Engineering and Water Resources Planning and Management,2000:1-9.
[14]中华人民共和国住建部.CJJ 92-2016城市供水管网漏损控制及评定标准,2016.
[15]THORNTON J,LAMBERT A.Progress in practical prediction of pressure:leakage,pressure:burst frequency and pressure:consumption relationships[C].IWA Specialized Conference“Leakage 2005”Proceedings,Halifax,Canada,2005.
[16]WU Z Y,SAGE P,TURTLE D.Pressure-dependent leak detection model and its application to a district water system.[J].JWater Res Plan Manag,2010,136(1):116-128.