圣卢西港市专注于保持公共供水的卓越性，实施了该项目 提高配水运行效率，节约用水，改善现场水质 水龙头作为美国发展最快的城市之一，圣卢西亚港正在迅速发展 扩大分销体系。分阶段开发导致了低流速和高流速 新配水管的水龄。该市目前在几处进行持续冲洗 整个配水系统的位置，以优化城市供水系统的配水质量 在这一充满挑战的增长期，客户。当前用于生产的成品水量 法拉盛流量接近该市年平均流量的9%。尽量减少冲洗水将降低成本 降低运营成本，减少城市总体用水。 需要一个精确的水力模型来评估对配水系统水质的潜在益处 以及冲洗要求。该市现有和陈旧的水力模型得到了更新和校准 用于优化分配系统的流量，保持足够的消毒剂残留，以及 尽量减少积水。本文介绍了一个水力模型的功能，以便 冲洗水和优化水质。水力模型的水质建模 功能用于: 确定潜在的水质问题区域； 保持足够的消毒剂残留量； 优化整个分配系统的流量；和 减少冲洗水量。 网络分析软件可用于水质建模。对于这个项目 水力模型在年平均条件和停留时间或水龄期间运行 由建模软件计算。水龄被用作冲洗建议的替代物。 水龄数据以图形方式显示，以确定配水系统的各个部分 最高的水龄和最低的消毒剂残留量。一旦计算出当前系统的水龄， 进行优化是为了减少冲洗水量，提高整个系统的用水效率 质量通过优化流程和 配水系统水质明显改善。包括3个参考文献、表格和图表。

Focused on maintaining public water supply excellence, the City of Port St. Lucie performed this project to increase water distribution operational efficiency, conserve water, and improve water quality at the tap. As one of the fastest growing cities in the United States, the City of Port St. Lucie is rapidly expanding its distribution system. Phased development has resulted in low flow velocities and high water age in new distribution piping. The City currently conducts continuous flushing at several locations throughout the water distribution system to optimize water distribution quality for the City's customers during this challenging growth period. The amount of finished water currently used for flushing is nearly 9% of the City's average annual flow. Minimization of flush water will lower operational costs and reduce the City's overall water use. An accurate hydraulic model is needed to assess potential benefits to distribution system water quality and flushing requirements. The City's existing and antiquated hydraulic model was updated, calibrated and used to optimize flow through the distribution system, maintain adequate disinfectant residual, and minimize stagnant water. This paper presents the capabilities of a hydraulic model for the purpose of optimizing water quality and minimizing flush water. The hydraulic model's water quality modeling functions were used to: identify potential water quality problem areas; maintain adequate disinfectant residual; optimize flows throughout the distribution system; and, reduce flush water volumes. Network analysis software is readily available to perform water quality modeling. For this project, the hydraulic model was run during average annual conditions and the residence time or water age calculated by the modeling software. Water age was used as a surrogate for flushing recommendations. The water age data was graphically displayed to identify portions of the distribution system with the highest water age and lowest disinfectant residuals. Once the current system water age was calculated, the optimization was conducted to reduce flushing water quantities and improve overall system water quality. A 7% annual savings in flushing water was achieved through the optimization process and distribution system water quality significantly improved. Includes 3 references, tables, figures.