A growth function curve used to characterize the development state of leakage point in the whole life cycle

Abstract

The invention provides a method for characterizing the development state of leakage points in the whole life cycle by using a growth function curve, which comprises a silent period, a slow period, a growth period and a stable period. The points on the growth function curve include the technically undetectable leakage point, the initial leakage point, the development leakage point, the extreme leakage point and the leakage point inflection point. The state of development throughout the lifecycle of a leak, including the background leak, Dark leakage point, bright leakage point, technology non-detectable leakage point on growth function curve in silent period is background leakage point, initial leakage point, development leakage point, leakage point inflection point in slow period, growth period, stable period, background leakage point if it is not detected at a certain time, dark leakage point if it is detected at a certain time; the leakage point after the extreme leakage point in thestable period on the growth function curve is the open leakage point. The invention utilizes the growth function to determine the leakage amount of the leakage point in different time periods, whichcan guide the water balance analysis more effectively.

Description

technical field [0001] The invention belongs to the field of leakage control of urban water supply pipe networks, and in particular relates to a method for representing the development state of a leakage point in the whole life cycle by using a growth function curve. Background technique [0002] The first step in the management and control process of water supply network leakage is to conduct water balance analysis, and then evaluate the current situation of leakage in the pipeline network, and then take appropriate control measures to reduce leakage. The leakage water volume of the water supply pipe network includes the actual leakage water volume and the apparent leakage water volume. The apparent leakage mainly includes illegal connections, instrument errors, and statistical errors; Spills and overflows. The real water loss is an important part of the water loss, and a reasonable and objective evaluation of it is of great significance for the management and control of p...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the research on leakage control focuses on the location of leaks and reducing the amount of water loss. There is no research on the development process of leaks, that is, the development process of a water leak from its appearance to its detection.

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