Water supply pipe network leakage efficient positioning method based on valve operation and online water metering
A technology of valve operation and positioning method, applied in the field of municipal engineering and urban water supply pipe network, can solve the problems of insufficient practicability and accuracy, leakage of water supply pipe network and efficient positioning, etc., to ensure accuracy, high positioning efficiency, and optimize valve. effect of operation
Active Publication Date: 2020-04-17
ZHEJIANG UNIV
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[0005]
In view of the lack of practicability and accuracy of the above-mentioned leakage location method, the present invention proposes a high-efficiency location method for water supply network leakage based on valve operation and online water metering, which can accurately and efficiently determine the leakage area in DMA , and easy to implement
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[0040] In order to make the missing positioning method proposed in the present invention easy to understand, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiment. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0041] Such as figure 2 (a) represents a simple DMA pipe network, including 2 inlets, 1 outlet, 5 valves (V1, V2, V3, V4 and V5) and several pipe segments and nodes. The present invention adopts the following specific implementation steps to carry out its missing location, see figure 1 .
[0042] Step 1: Treat the DMA pipeline network as a pipeline network graph G (pipelines and valves ar...
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The invention belongs to the field of municipal engineering and urban water supply pipe networks, and particularly relates to an efficient leakage positioning method in a water supply pipe network based on valve operation and online water metering. The invention provides a water supply network leakage efficient positioning method based on valve operation and on-line water consumption metering. Efficient and accurate positioning of leakage in a water supply network DMA is achieved. The method is implemented in multiple stages to gradually reduce a leakage area, in each implementation stage, a DMA pipe network is firstly divided into two sub-areas by utilizing an optimized valve operation strategy, and then the sub-areas containing leakage are identified through online water balance analysisbased on an intelligent water meter, so that the leakage area is reduced. According to the method, an optimized valve operation strategy is determined by establishing a minimized objective function and combining a graph theory method, and the minimum leakage area is determined with the minimum number of times of valve operation. Compared with traditional manual leakage listening and other methods, the method provided by the invention can significantly improve the leakage positioning efficiency and ensure the leakage positioning accuracy, and is easy to implement.
Description
technical field [0001] The invention relates to the fields of municipal engineering and urban water supply pipe networks, in particular to an efficient location method for water supply pipe network leakage based on valve operation and online water metering. Background technique [0002] Leakage is one of the common problems in the operation of my country's urban water supply network. According to the survey and statistics of "Urban Water Supply Statistical Yearbook (2017)", the water leakage in major provinces and cities in my country accounts for roughly 8%-50% of the water supply, and the leakage in some areas is quite serious. Pipe network leakage not only seriously wastes water resources and energy, but also causes hidden dangers to drinking water safety. Therefore, the leakage detection and location of water supply pipe network has always been one of the important tasks of water supply enterprises, which is of great significance for saving water resources and ensuring ...
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IPC IPC(8): G06Q10/02G06Q50/06
CPCG06Q10/02G06Q50/06E03B7/02G01M3/2807Y02A20/00E03B7/071
Inventor 郑飞飞黄源张清周
Owner ZHEJIANG UNIV