Gas extraction pipe network parameter monitoring system and leaking point accurate positioning method

Abstract

The invention discloses a gas extraction pipe network parameter monitoring system and a leaking point accurate positioning method. The gas extraction pipe network parameter monitoring system comprises a monitoring substation, optical communication equipment and a monitoring center, wherein the monitoring substation is arranged at a key node position of a gas extraction pipe network, and is mainly responsible for acquiring signals including pressure, flow and the like and monitoring in real time; when a pipeline leaks, audible and visual alarm is carried out; and the monitoring center is used for communicating with the monitoring substation through the optical communication equipment, acquiring data from the monitoring substation and carrying out leaking point positioning when leakage occurs. With the adoption of a sensor arranged on a gas extraction pipeline, various parameter signals in the pipeline are converted into an electric signal and the signal is processed through a PLC (Programmable Logic Controller) of the monitoring substation; the signal is transmitted by utilizing the optical communication equipment; an upper computer of a monitoring center is used for processing the data acquired by the monitoring substation; and when the leakage occurs, the upper computer displays a leaking signal to a user and a leaking point is positioned; and the user sends out a control instruction through the upper computer so that remote control of equipment is realized.

Description

technical field [0001] The invention belongs to the technical field of monitoring systems, and in particular relates to a gas drainage pipe network parameter monitoring system and a method for precisely locating leak points. Background technique [0002] With the rapid development of coal mining technology in my country, the mechanization level of coal mines is getting higher and higher. At the same time, coal mine production is more efficient and intensive. However, with the acceleration of coal mining speed and the deepening of coal mine mining depth, the amount of mine gas emission has been on the rise. Gas poses a major danger to coal mine safety production. But gas is a high-quality clean energy, so it is of great significance to increase the extraction and utilization of coal mine gas to turn waste into treasure. However, in some mines in my country, most of the gas drainage pipelines are laid in the return airway, the roadway maintenance ability is poor, and the drain...

AI Technical Summary

Problems solved by technology

However, when some methods are applied to gas drainage pipelines for leakage monitoring, the error is large and the accuracy is not high, and the leakage point cannot be located. Due to the influence of pipeline operating conditions and monitoring equipment, the flow change at the first and last ends has a time lag

Images