The Research of On-Line Monitoring System Design for Temperature Distribution in Coalmine Gob Area

Abstract:

With some residual coal and much leaking air in gob area, fire happens frequently in those areas. Thus, it has become one of main factors of restricting mine development. With the technology of optical fiber pyrometer, the monitoring system has been designed for temperature distribution in coalmine gob area. In addition, by combining it with line laying system, power supply system, data collection system and data analysis system, temperature distribution in coalmine gob area could be monitored in time to provide firing warning of the spontaneous fire happening in the residual coal and fire would be reduced effectively. By comparing optical fiber thermometric system with the temperature measurement system, it shows that the former have a clear advantage in the aspects of time, the location of ignition point, reaction speed and costs maintenance.

• Periodical: Applied Mechanics and Materials (Volumes 513-517)
• Pages: 2931-2937
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.513-517.2931
• Online since: February 2014
• Authors: Zhian Huang, Zhou Jing Ye, Ying Hua Zhang, Yu Kun Gao*
• Keywords: Distribution, Gob Area, Optical Fiber Pyrometer, Time

References

[1] Bian Xiao-kai, Bao Zhong-hong, Shi Mei-ren. Numerical Simulation of The Perature field forwordkey-out Secition of Coal Mines and Prediction of Spontaneous Combustion [J]. Journal of Nanjing University of Chemical Technology, 2003 22 (2) 43-47.

[2] Zhou Ling-chang, Sun Qing-wei, Liang Yin. Mathematic Model of Steady Flow Field and Temperature Field in Goaf [J]. Morden Mining, 2009 (5) 58-60.

[3] Chen Li-jun, Li Hai-bo, Wu Qian. The Statusquo and Development Trend of Distributed Optical Fiber Temperature Measurement Techniques [J]. Control and Instruments in Chemical Industry, 2010 37 (12) 1-4.

[4] Yilmaz G, Karlik S E. A distributed optical fiber sensor for temperature detection in power cables [J]. Sensors and Actuators A: Physical, 2006 125 (2) 148-155.

DOI: 10.1016/j.sna.2005.06.024

[5] Yu Qing. Application of Distributed Fiber Temperature Measurement Technology in Coal Mine [J]. Industry and Mine Automation, 2012 (4) 5-8.

[6] Wang Li-qian, Zhou Bin, Sun Yan-qiu. Application of Distributed Optical Fiber Temperature Sensing System in Ship Fire Alarm System [J]. Ship Electronic Engineering, 2013 33 (6) 131-132.

[7] Song Wen-sheng. Design and Implementation of Distributed FiberTemperature-measured System, (2007).

[8] Cheng Guang-xu. Raman Brillouin Scattering, (2007).

[9] Lees G P. Advances in optieal fiber distributed temperature sensing using the Landau Plaezek ratio [J]. IEEE Photonics Technol, 1998 10 (1) 126-128.

DOI: 10.1109/68.651134

[10] M. Ahangrani, T. Gogolla. Spontaneous Raman Scattering in Optical Fibers with Modulated Temperature Raman Remote Sensing [J]. Journal of Lightwave Technology, 1999 (8) 1379-1391.

DOI: 10.1109/50.779159