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A rapid identification method of water supply network leakage area based on pressure monitoring

A pressure monitoring and water supply network technology, applied in water conservation, data processing applications, climate sustainability, etc., can solve problems such as identifying leakage areas, and achieve the effect of long calculation time and good stability

Active Publication Date: 2021-09-07
ZHEJIANG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

However, an important bottleneck of this type of technology is how to quickly and accurately identify the leakage area through monitoring equipment

Method used

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  • A rapid identification method of water supply network leakage area based on pressure monitoring
  • A rapid identification method of water supply network leakage area based on pressure monitoring
  • A rapid identification method of water supply network leakage area based on pressure monitoring

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Experimental program
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Embodiment Construction

[0027] see figure 1 , the specific implementation steps of the present invention are as follows:

[0028] (1) Preprocessing pressure monitoring point data: For each pressure monitoring point, collect the historical data of the pipe network pressure monitoring point in the most recent period (preferably 2-4 years), and put the pressure data at the same time every day in order from small to large to arrange. For example, a city's water supply network (such as figure 2 Shown) The pressure data of a certain pressure monitoring equipment at 8 am in the past three years are arranged in ascending order: 18.75m, 18.76m, 18.78m,..., 20.01m, 20.02m, 20.03m,..., 21.25m, 21.26m, 21.30m.

[0029] (2) Determine the leakage response threshold of the pressure monitoring equipment: according to formula 1-1, determine the 5th percentile of the data sequence as the leakage response threshold of the pressure monitoring equipment at this moment. For example, in step (1), the urban water suppl...

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Abstract

The present invention provides a pressure monitoring-based rapid identification method for leakage areas of water supply pipe networks, including: establishing the leakage response threshold of pressure monitoring equipment, calculating the minimum leakage flow rate of each pressure monitoring equipment alarm caused by water consumption nodes, and determining each water consumption The minimum alarm flow of the node is used to divide the leakage monitoring area of ​​the pressure monitoring equipment. The invention is a brand-new technical method for quickly identifying leakage areas of water supply pipe networks, has originality, and has important scientific significance and application value for monitoring the leakage of urban water supply pipe networks.

Description

technical field [0001] The invention relates to the fields of leakage control of municipal engineering and urban water supply pipe networks. Background technique [0002] According to statistics, the annual average leakage rate of my country's urban water supply pipe network has reached about 18%, and some cities even exceed 25%, resulting in an annual water loss of more than 5 billion m 3 , which is equivalent to twice the total annual urban water consumption in Guangzhou. The leakage of the water supply pipe network not only causes a major waste of water resources, but also leads to water quality pollution of the pipe network and secondary disasters (such as road subsidence, etc.), which has become an important obstacle to the sustainable development of my country's national economy and society. Therefore, how to effectively monitor leakage and improve water supply efficiency is an urgent problem to be solved in social development. [0003] In order to solve the leakage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCY02A20/00
Inventor 郑飞飞齐哲娴张清周邵煜俞亭超张土乔
Owner ZHEJIANG UNIV