It is a system that performs temperature distribution monitoring and heat source positioning based on the Raman scattering principle and time-domain reflection technology. It is mainly used for trend monitoring of ambient temperature and positioning of high-temperature abnormal points, enabling the division of fire-risk areas. Combined with industrial Ethernet, it realizes real-time data upload and big data statistical analysis.
This new-generation beam tube monitoring device features two sampling control modes: automatic and manual. It is a high-efficiency control system capable of multi-zone cyclic sampling, detection of ten gas concentrations, and real-time data transmission and storage.
The system consists of a full-laser beam tube monitoring device for coal mine spontaneous combustion, a distributed optical fiber temperature measurement device, a data transmission network, and ground software with a B/S architecture.
A gas sampling pump cyclically samples monitoring points.
By arranging gas sampling beam tubes at the top of the coal bunker, installing an optical fiber temperature measurement system on the coal bunker tank, and matching with wireless ad-hoc network sensors inserted into the outer wall of the coal bunker, the system realizes real-time collection, analysis and early warning of indicator gas concentration data and temperature data in the coal bunker. It also achieves accurate positioning of high-temperature areas through analysis and early warning software. At the same time, the monitoring system can conduct data connection with the nitrogen injection system. When a fire alarm occurs, it links with the nitrogen injection system to perform inerting treatment on the designated area of the coal bunker.
As the top-level supervision and intelligent decision-making core for fire risks in the entire mine, this platform has built an integrated comprehensive fire prevention and control system that covers internal and external cause fires in the mine, as well as all scenarios and the entire process.