基于Flowmaster的不同阀门开度对供水管网优化

Flowmaster-based optimization study of water supply pipe network with different valve openings

为了进一步提高供水管网的优化性能,利用Flowmaster仿真软件,给出了管道、闸阀、阀门开度控制器等原件的建模过程,研究了阀门在不同程度下开启度对优化供水管网系统的影响,并建立多组对比模型参数进行仿真且着重分析了在阀门不同开启度下系统中管道阻力系数的变化.首先以流体管路系统为研究对象,对系统整体进行建模,其次对闸阀、管道的阻力损失规律进行优化分析,最后针对不同供水工况分别探究了阀门开启度对管道阻力损失的影响,得出最佳阀门开启度.结果表明,当供水管网系统分别处于大、小流量运行工况时,此时应根据用户实际用水需求量、阀门阻力系数、管道损失系数等方面因素综合调节各阀门开度,从而可以适当降低管网中的水力阻力损失,优化供水管网系统.

The influence of valve opening on optimization of a water supply pipe network system was studied by using Flowmaster software to improve the hydraulic performance of the network.The mode-ling process of basic components,such as pipeline,gate valve and valve opening controller,was provided,then several sets of model parameters were simulated and the variation of resistance factor in the system was analyzed and contrasted at different valve openings.A fluid pipeline system was taken as the study object,and the whole system was modeled firstly.Then the resistance factors of the gate valve and pipeline were optimized.Finally,the influence of valve openings on the pipeline resistance was explored according to different water supply conditions,and the optimum valve opening was obtained.The results show that when the water supply network system is under large and small flow operating conditions,respectively,the valve opening should be comprehensively adjusted based on user actual water demand,valve and pipeline resistance factors to appropriately reduce the hydraulic loss in the network and optimize the hydraulic performance of the system.