管网水力与水质模型在多水厂供水管理中的应用

Application of Hydraulic and Water Quality Model to Management of Water Supply System with Multiple Waterworks

随着城市规模的扩大,城市居民生产和生活用水量日益增加,以往单水厂供水已不能满足用水需求,多数城市都是多水厂供水,但此供水模式给压力调度和水质管理带来了新的问题。以北方某市供水管网为例,基于EPANET计算引擎,分析了多水厂供水条件下管网的水力学和水质特征;计算了主要水厂的供水范围,通过关闭供水范围边界阀门可实现供水的分区管理。

The water demand of a city keeps increasing due to rapid expansion, which can no lon- ger be met by a single waterworks. In many cities, water is supplied by several waterworks. However, the water supply system with multiple waterworks brings new challenges to the pressure regulation and wa- ter quality security. Taking the water supply system of a city in the northern China as the case, the characteristics of hydraulics and water quality of the system with multiple waterworks are analyzed by using EPANET as the computational engine. The water supply area of each main supplier is calculated. The zoning management can be achieved by closing the valves at the boundaries of each covering area.