Water supply pipe network pipe burst and leakage preliminary positioning method

A technology for water supply network and initial positioning, applied in pipeline systems, instruments, character and pattern recognition, etc., can solve the problems of DMA partition area is not small, the urban water supply network is intricate, and cannot be detected effectively and quickly, so as to reduce leakage. The effect of positioning time

Active Publication Date: 2019-06-11
HANGZHOU DIANZI UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The urban water supply network is intricate and covers a large area. Once a leak occurs, it cannot effectively and quickly detect the location of the leak.
Although some water companies have carried out DMA partitions, the area of ​​DMA pa

Method used

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  • Water supply pipe network pipe burst and leakage preliminary positioning method
  • Water supply pipe network pipe burst and leakage preliminary positioning method
  • Water supply pipe network pipe burst and leakage preliminary positioning method

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Experimental program
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Embodiment Construction

[0047] In order to make the method for the initial location of squib leakage of the present invention easy to understand, the implementation of the present invention will be described below in conjunction with the accompanying drawings and specific examples. The following takes the DMA area of ​​the pipe network from 8:30 to 11:30 on April 3 in the core urban area of ​​the city as an example (such as figure 1 As shown in the figure, the dots in the figure represent the pressure monitoring positions, and the rectangular boxes represent the positions of the leakage point of the experimental pipe bursting). In this DMA, two pipe bursting experiments were carried out at different locations. The experiment simulated the leakage flow by opening the fire hydrant next to the road. Specifically Table 1 and Table 2 show the test time of burst pipe leakage and the information of monitoring points of pipe network pressure.

[0048] Table 1 The simulation experiment time of squib leakage ...

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Abstract

The invention discloses a water supply pipe network pipe burst and leakage preliminary positioning method. The preliminary positioning method comprises the steps of conducting zoning on a water supplypipe network based on spectral clusters; judging whether abnormal change occurs to the pressure of a pressure monitoring point or not through a CUSUM algorithm; and finally, positioning the water supply pipe network zone at the spectral cluster where the abnormal pressure monitoring point is located according to the abnormal pressure monitoring point and preliminarily judging a pipe burst and leakage incident occurs in the zone where the pressure monitoring point is located. Through the method, the related zones of the pressure monitoring points do not need to be repeatedly partitioned, the leakage positioning time can be shortened, and quick and flexible leakage preliminary positioning can be realized.

Description

technical field [0001] The invention belongs to the field of urban water supply, and in particular relates to a method for the initial location of burst and leakage of a water supply pipe network. Background technique [0002] The urban water supply network is intricate and covers a large area. Once a leak occurs, it cannot effectively and quickly detect the location of the leak. Although some water companies have carried out DMA partitions, since the area of ​​DMA partitions is still not small, if the leakage problem is judged by the night minimum flow method, and then the leakage point on the pipeline is detected by the traditional leak detection method, the workload is huge and the efficiency is low. For this reason, it is necessary to minimize the leak detection area, thereby improving the leak detection efficiency and reducing the workload. Contents of the invention [0003] Aiming at the difficult problem of leak detection and location of water supply pipe burst, th...

Claims

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Application Information

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IPC IPC(8): F17D5/02G06K9/62
Inventor 徐哲王健何必仕陈晖
Owner HANGZHOU DIANZI UNIV
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