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基于数学建模知识的城区用水模式分析

发表时间:2019-03-22  浏览量:438  下载量:29
全部作者: 周沛希,刘鹏,朱婷婷,曾繁慧
作者单位: 辽宁工程技术大学测绘与地理科学学院;辽宁工程技术大学理学院
摘 要: 城市中的用水量与水资源的发展息息相关。本文将自来水公司的城市供水管网划分为多个独立计量区域(district metering area,DMA),在每个DMA入口处布设流量仪表,监测DMA的用水情况,这种方法是管网漏损控制管理及运行管理的重要手段。然后根据测量结果,利用Matlab绘制用水模式曲线,与搜集到的居民小区、机关事业单位、商业服务业等的用水模式曲线进行对比,辨识出该区域的典型用水模式;根据数据中水压、用水量和日期的关系,求出最小用水量与日期的关系,分析漏水模式;根据结果分析用水趋势(生活和生产的节律),当异常情况(人口流动、管道破损漏水等)发生时,这个测量值序列会发生变化,利用之前辨识出的典型用水模式,对异常模式进行识别。最后,利用模型与实际的拟合程度,对模型的适用性、合理性、优缺点等进行科学的分析与评价。
关 键 词: 应用数学;用水量;水压;用水模式;漏水模式;异常模式
Title: Analysis of urban water use pattern based on mathematical modeling knowledge
Author: ZHOU Peixi, LIU Peng, ZHU Tingting, ZENG Fanhui
Organization: School of Geomatics, Liaoning Technical University; School of Sciences, Liaoning Technical University
Abstract: Water consumption in cities is closely related to the development of water resources. This paper divides the urban water supply network of water company into several district metering areas (DMA), and sets up flow meters at the entrance of each DMA to monitor the water consumption in the DMA. This method is an important means of pipe network leakage control and operation management. According to the measurement results, the water use pattern curves are drawn by Matlab, and compared with the collected water use pattern curves of residential quarters, government departments and institutions, business services, then the typical water use patterns in this area are identified. According to the relationship between pressure, water consumption and date, the relationship between the minimum water consumption and the date is calculated to analyze the leakage pattern. According to the results, the trend of water consumption (rhythm of life and production) is analyzed. When abnormal conditions (population flow, pipeline damage, water leakage, etc.) occur, the sequence of measurements changes. The identified typical water use pattern is used to identify abnormal patterns. Finally, the applicability, rationality, advantages and disadvantages of the model are scientifically analyzed and evaluated by the fitting degree between the model and the actual situation.
Key words: applied mathematics; water consumption; pressure; water use pattern; leakage pattern; abnormal pattern
发表期数: 2019年2月第1期
引用格式: 周沛希,刘鹏,朱婷婷,等. 基于数学建模知识的城区用水模式分析[J]. 中国科技论文在线精品论文,2019,12(1):35-47.
 
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