Locating method and locating system of leakage area of underground gas pipeline

Abstract

The invention provides a locating method and a locating system of a leakage area of an underground gas pipeline. The locating method comprises the steps that S1, according to real-time monitoring results of combustible gas monitors in adjacent underground spaces of the underground gas pipeline, the positions of the combustible gas monitors where gas concentrations of combustible gas exceeding thepreset threshold are determined; and S2, based on the positions of the combustible gas monitors, and the gas concentrations of the combustible gas monitored by the combustible gas monitors correspondingly, the range of the underground gas pipeline having leakage is estimated by utilizing a predetermined gas source tracing algorithm. According to the locating method and the locating system of the leakage area of the underground gas pipeline, through the combustible gas monitors arranged in the adjacent underground spaces of the underground gas pipeline, the concentrations of the combustible gasare monitored in real time, and then according to the gas leakage area is determined according to the concentrations and the positions of the combustible gas monitors, the effects of monitoring the gas in real time and safely and rapidly locking the leakage area are realized, and the city safety is guaranteed.

Description

technical field [0001] The invention relates to the field of pipeline safety monitoring, and more particularly, to a method and system for locating leakage areas of underground gas pipelines. Background technique [0002] In recent years, underground gas pipeline network safety accidents have shown a high incidence. According to incomplete statistics, from 2011 to 2014, there were an average of more than 800 gas accidents in the country every year. These accidents caused heavy casualties and economic losses, and received widespread public attention. [0003] Leakage monitoring of urban gas pipelines is mainly carried out by manual inspection, and technicians carry flammable gas monitors, laser methane monitors and other monitoring instruments to monitor and locate the pipeline leaks. [0004] The manual inspection method adopted in the existing technology needs to waste a lot of human resources to check each pipeline one by one, and cannot monitor the pipeline status in rea...

AI Technical Summary

Problems solved by technology

[0004] The manual inspection method used in the existing technology needs to waste a lot of human resources to check each pipeline one by one, and cannot monitor the pipeline status in real time. When a gas leak occurs, the leakage area cannot be quickly locked, which brings great hidden dangers to urban safety.

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