Coal mine gas drainage pipeline optical fiber monitoring system

Abstract

The invention provides a coal mine gas drainage pipeline optical fiber monitoring system which comprises hardware and software, wherein a hardware system comprises an optical fiber temperature sensor, an optical fiber pressure sensor, an optical fiber laser gas sensor, an optical fiber flow sensor, a single mode fiber, a coupler, a multi-core optical cable, a fiber bragg grating demodulation instrument and an optical fiber gas demodulation instrument; a software system comprises a computer, a background database and a data correspondence protocol. The carrying system has the beneficial effects that a fiber bragg grating sensing technology is introduced into the field of coal mine downhole pipeline monitoring; a software-hardware test system applicable to inflammable and explosive environments and other environments is developed, and the all-day uninterrupted monitoring requirement for important parts of a coal mine downhole gas drainage pipeline is met.

Description

technical field [0001] The invention relates to the field of pipeline monitoring equipment, in particular to a coal mine gas drainage pipeline optical fiber monitoring system. Background technique [0002] Underground water supply, ventilation and gas drainage pipe networks in coal mines are called the "lifeline" underground and are an important part of coal mine safety production. Most of the underground water supply, ventilation and gas drainage pipelines in my country's coal mines are laid and installed during the construction of mines. It happens from time to time that production is affected due to pipeline breakage or insufficient pressure during excavation. Waste precious resources, affect the normal production of the mine, and cause relatively large economic losses to the enterprise. [0003] For the operation and use of the underground pipeline network, my country's coal mines currently use manual inspections to inspect, which is inefficient and consumes...

AI Technical Summary

Problems solved by technology

Waste precious resources, affect the normal production of the mine, and cause relatively large economic losses to the enterprise

[0003] For the operation and use of the underground pipeline network, my country's coal mines currently use manual inspection methods for inspection, which is inefficient and consumes a lot of manpower and material resources; it cannot monitor the operation of the pipeline in real time, and it is difficult to detect emergencies in time; inspectors are prone to accidents missing check

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