考虑再生操作的间歇过程用水网络优化

发布时间：2018-03-29 08:44

本文选题：用水网络　切入点：间歇过程　出处：《化工进展》2017年04期

【摘要】：当前,水资源短缺与污染问题日益严重,废水再生后回用对节约水源和保护环境具有重要的意义。针对间歇过程,为了合理利用不同品质的过程水源,实现用水系统的最大水回用,本文建立了一个包含水源-水阱、水源-中间储罐-水阱、水源-连续再生体系-水阱与水源-废水处理系统的用水网络超结构,基于连续时间模型建立数学模型,并采用多目标分步法依次优化新鲜水用量、再生单元的再生速率以及中间储罐数目,最终得到新鲜水消耗量以及废水排放量最小的最优用水网络结构。同时,为贴近实际生产中的多操作周期过程,本文针对用水系统从启动周期到稳定周期的全过程,进行了用水网络的设计、分析与优化。最后通过算例计算,验证了本文所提方法的合理有效性。
[Abstract]:At present, the problems of water resources shortage and pollution are becoming more and more serious, and the reuse of wastewater after regeneration is of great significance for saving water resources and protecting the environment. In view of the intermittent process, in order to make rational use of different quality process water sources, In order to realize the maximum reuse of water, a superstructure of water network including water source-water trap, water source-intermediate storage tank-water well, water source-continuous regeneration system-water trap and water-wastewater treatment system is established in this paper. Based on the continuous time model, the mathematical model is established, and the multi-objective stepwise method is used to optimize the fresh water consumption, the regeneration rate of the regeneration unit and the number of the intermediate storage tanks in turn. Finally, the optimal water network structure with minimum fresh water consumption and waste water discharge is obtained. Meanwhile, in order to get close to the multi-operation cycle process in actual production, this paper aims at the whole process of water system from start-up cycle to stable period. The design, analysis and optimization of the water network are carried out. Finally, the validity of the proposed method is verified by an example.
【作者单位】：大连理工大学化工系统工程研究所;大连理工大学环境学院工业生态与环境工程教育部重点实验室;
【基金】：国家自然科学基金项目(21576036)
【分类号】：TQ085

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