| 刘雅亭,黄显怀,杨伟伟,宋纲,朱波.基于分区计量系统的供水管网模型流量分配方法研究[J].安徽建筑大学学报,2023,31(): |
| 基于分区计量系统的供水管网模型流量分配方法研究 |
| Research on Flow Distribution Method of Water Supply Network Model Based on District Metering System |
| 投稿时间：2021-12-20 修订日期：2022-02-24 |
| DOI：10.11921/j.issn.2095-8382.20211220004 |
| 中文关键词: 供水管网 分区计量 水力模型 流量分配 |
| 英文关键词: water supply network district metering hydraulic model node flow distribution |
| 基金项目:国家水体污染控制与治理重大专项；城市供水水质保障及管网安全运行优化调度技术研究应用 |
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| 中文摘要: |
| 节点流量作为供水管网建模的重要参数，其分配结果直接影响供水模型准确性。针对目前常规节点流量分配方法准确性不足及工作强度大的问题，提出了基于分区计量系统的供水管网节点流量分配方法。该分配方法中的节点流量是居民用户节点流量、其他工商户节点流量和产销差节点流量之和。居民节点流量通过DMA边界五级表数据确定；其他工商户节点流量通过终端六级远传表数据确定；流量产销差节点流量，以二级分区为单位，在区域内沿线均分后折算至节点流量。该方法运用于H市供水管网水力建模项目，模型校核结果：测压点水压的实测记录值与模拟值之差100%≤±4mH2O；85.83%≤±2mH2O；55.18%≤±1mH2O；23.15%≤±0.5mH2O，满足精度要求，取得良好效果。 |
| 英文摘要: |
| As an important parameter of water supply network modeling,node-flow directly affects the accuracy of water supply model.Aiming at the problems of insufficient accuracy and high work intensity of the current conventional node-flow distribution methods,this paper proposes a node-flow distribution method of water supply network based on district metering system.The node-flow in this distribution method is the sum of resident user node flow, other industrial and commercial node flow and the no-revenue water node flow.The flow of residential nodes is determined by the five-level water meter at the DMA boundary ; The node flow of other industrial and commercial households is determined by the terminal six-level remote water meter; The no-revenue water node flow is converted into the node-flow after being evenly distributed along the line in each Secondary zoning area.This method is applied to the hydraulic modeling project of water supply network in H city.The model verification results are as follows: the difference between the measured recorded value and the simulated value of water pressure at the pressure measuring point is 100%≤±4mH2O; 85.83%≤±2mH2O; 55.18%≤±1mH2O; 23.15%≤±0.5mH2O, meeting the accuracy requirements,good results were obtained. |
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