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| 基于PDD的既有漏损定位模型的研究 |
| The study on existing leakage location model based on PDD |
| 投稿时间：2019-03-08 修订日期：2019-04-28 |
| DOI： |
| 中文关键词: 供水管网 DMA 漏损控制 既有漏损定位 |
| 英文关键词: Water distribution system DMA water loss rate existing leakage location |
| 基金项目: |
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| 中文摘要: |
| 目前,检出管网已有漏损点的主要方法为音听法、区域检漏法等,但其对漏损点的检出效率不高。为了提高已有漏损点的检出效率,提出一种基于PDD(Pressure Drive Demand,PDD)的既有漏损定位模型,并将其运用于G市管网的既有漏损检测。结果表明,在管网实际漏损率超过供水企业所期望的漏损率的情况下,基于PDD的既有漏损定位模型能较准确的对管网既有漏损点进行定位,这对提高漏损点检出效率,减少漏损存量,降低管网漏损率具有重要意义。 |
| 英文摘要: |
| At present, The main methods to detect the leakage point in the pipe network are using listening devices, area leak detection method and so on, but the efficiency of detecting leakage point is not high. In order to improve the detection efficiency of existing leakage points, a method of locating existing leakage based on PDD is proposed and applied to the detection of existing leakage in city pipeline network. The results show that when non-revenue water consumption exceeds the expected value, the location of the existing leakage based on PDD can locate the existing leakage point of the pipe network, which is of great significance to reduce the amount of leakage and the non-revenue water consumption in the pipe network. |
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