A pipeline monitoring and early warning system in a tunnel

Abstract

The invention discloses a pipeline safety monitoring and early warning system in a tunnel. The monitoring system is composed of pipeline deformation measurement unit, temperature measurement unit, support displacement and reaction force measurement unit, water level detection unit, on-site data acquisition and processing unit, on-site sound and light alarm, remote analysis and control terminal, and optical cable. The monitoring signals of each measurement unit are collected and processed by the multi-channel demodulation module and the on-site analysis and processing module, and then transmitted to the remote analysis and control terminal by the GPRS protocol through the wireless transmission module, and the recording statistics and early warning analysis of the monitoring signals are realized by the control system software , and set the safety threshold, remote control of the monitoring system and on-site sound and light alarm. The modular and multi-channel design of the monitoring system can configure different monitoring items and multiple groups of monitoring points according to monitoring needs, which can meet the monitoring and early warning of various tunnels crossing pipelines such as mountains and rivers, and realize automatic remote intelligent monitoring and management of pipelines in tunnels.

Description

technical field [0001] The invention relates to a safety monitoring and early warning system for oil and gas pipelines in tunnels, in particular to on-line monitoring and safety warnings for oil and gas pipelines in tunnels crossing mountains and rivers, and belongs to the technical field of pipeline safety and measurement. Background technique [0002] my country's pipeline engineering is in a period of rapid development, and more and more pipelines have to pass through various geological topography areas. Among them, tunnels are a major way for pipelines to cross complex mountains and large rivers. Tunnels for pipelines generally have the characteristics of small cross-sectional area and various crossing routes. That is, the cross-sectional area of ​​the tunnel should be as small as possible to reduce the amount of excavation while meeting the needs of pipeline installation. The tunnel route can be flexibly designed according to the terrain and geological conditions. For e...

AI Technical Summary

Problems solved by technology

The main problems of this manual inspection method are as follows: first, the tunnel space is relatively closed, and you must maintain good ventilation and lighting to enter. Some tunnels are several kilometers long, and the inspection workload is heavy and the safety risk is high; The deformation of the card and support is difficult to find through manual inspection; third, it is impossible to grasp the safety status of the pipeline and auxiliary facilities in the tunnel in real time, and it is often discovered and dealt with after the event; fourth, there may be water in the river tunnel. Drainage and ventilation operations require a huge amount of work. If the tunnel is filled with water after completion, the preparation work before the inspection will be even more difficult.

[0005] Among the disclosed existing technologies, there are technologies and methods such as deformation monitoring of the tunnel structure body, pipeline monitoring and early warning in unfavorable geological areas, and natural gas leakage monitoring in open space tunnels. There is no safety monitoring and early warning technology for pipelines in tunnels

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