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为了更积极地应对我国城市水源地的突发污染事故,提高多水源原水系统供水的安全性和可靠性,将基于不确定性分析的供水风险概念引入原水系统的水量调度中,采用历史数据统计分析应急条件下城市取水量与用水量的变化规律,利用图论与网络分析的思想建立了多水源原水系统的网络规划模型,并通过模拟计算得到原水系统供水风险的分布规律,对拟定的原水供需条件给出了优化调度方案。然后将此方法应用于Z市咸潮期应对城市水源地突发污染事故的水量调度中,计算结果与实际情况比较吻合,证明了该方法的可行性。
In order to deal with unexpected pollution accidents in urban water sources and improve the safety and reliability of water supply system of multi-sourced raw water system, the concept of water supply risk based on uncertainty analysis is introduced into the water regulation of raw water system. The historical data This paper analyzes the changing law of urban water withdrawal and water consumption under emergency conditions and establishes the network planning model of multi-water source raw water system by using the theory of graph theory and network analysis. The distribution rules of water supply risk of raw water system are obtained through simulation calculation, Supply and demand conditions give the optimal scheduling scheme. Then, this method is applied to the water regulation of sudden pollution accidents in urban water sources during the salinity period in Z City. The calculated results are in good agreement with the actual situation, which proves the feasibility of this method.