净水技术2026，Vol.45Issue(1)：45-52,8.DOI:10.15890/j.cnki.jsjs.2026.01.006
基于水龄熵的供水管网可靠性及水质保障机制
Reliability of Water Supply Network and Mechanism of Water Quality Guarantee Based on Water Age Entropy
摘要
Abstract
[Objective]The purpose of this paper is to construct a reliability evaluation model of water supply network by using water age entropy as the evaluation index,aiming to explore the correlation between water supply network reliability and water quality by evaluating the reliability of pipe network,and then analyze the change law of water quality in pipe network,so as to provide a scientific basis for improving the water supply safety of pipe network.[Methods]In this paper,a reliability evaluation model of water supply network with water age entropy as the core was constructed,and the change characteristics of system reliability and water quality parameters(such as water age,residual chlorine decay rate,etc.)were quantitatively evaluated by analyzing the topology of the pipe network under different working conditions.[Results]In the same experimental pipe network,according to the changes in system reliability and water quality caused by different pipe network topologies,among the 13 working case schemes,the reliability of scheme 2 was the highest,with a reliability of 0.58,but its fluctuation range before stabilization was larger.The reliability of scheme 1 and scheme 2 were similar due to the similar network.The reliability of scheme 5 was the lowest,with a reliability of 0.35.The reliability of multi-paths nodes was relatively high,but it was also greatly affected by water amount allocation and topological position.The water age entropy of the end node of the pipe network increased.Under different working conditions,the water age of condition 5 was the highest,the residual chlorine decay rate in the system was the highest,and the uncertainty of water allocation increased with the increase of the number of paths in the system.The residual chlorine in scheme 1 and scheme 2 were close.The total chlorine levels of the system and the residual chlorine at the outlet point in case 2 were higher than those in case 5.[Conclusion]Through the reliability assessment of the pipe network and the analysis of water quality change,the internal relationship between topology,reliability and water quality can be revealed,which provides theoretical support for optimizing the design of the water supply network and ensuring the safety of water supply.关键词
水龄熵/拓扑结构/供水管网/可靠度评价/水质保障Key words
water age entropy/topological structure/water supply pipelines network/reliability evaluation/water quality guarantee分类
建筑与水利引用本文复制引用
赵欣,王名豪,张飞,许丽芸,姜蕾,杨坤..基于水龄熵的供水管网可靠性及水质保障机制[J].净水技术,2026,45(1):45-52,8.基金项目
上海市"科技创新行动计划"启明星项目(22QB1401500) （22QB1401500）
