The Research of Temperature in Coal Mine Goaf Detection Application Based on Optional Fiber Sensing Technology
In view of the complexity of spontaneous ignition in coal mine goaf, grasping the rule of gas temperature and gas composition variation in goaf has great significance.Currently the thermocouple and the tube bundle monitoring system still exist many imperfections.With the development of fiber monitoring sensing technology, and in full consideration of the special requirements for power supply in the process of underground coal mining, fiber temperature sensing technology is applied to coal mine goaf temperature measuring system with the advantages of fiber sensing technology, in order to timely and accurately predict the early appearance of spontaneous ignition in goaf, inhibiting spontaneous ignition at an early stage.Theoretical analysis,experiment and field practice show that the fiber temperature measurement system can realize continuous monitoring and positioning for hotspot, avoiding the error caused by the tube bundle leakage, and making positioning precision error be controlled in ± 1 m.Also with the characteristics of essential safety, remote, distributed continuous measurement, and high precision, it can provide the basis for the safety production in coal mine, and have a great role in promoting the understanding of the disaster in coal mine forming mechanism and the forecasting technology of large disaster.
optical fiber sensor coal mine goaf fire monitoring spontaneous combustion
CHENG Genyin CAO Jian DONG Yuanyuan TANG Jingjing NIU Zhenlei ZHOU Yifei
Key Lab.of Mine Disaster Prevention and Control, Sanhe065201, Hebei, China;College of Safety Enginee Graduate School of North China Institute of Science and Technology, Beijing 101601, China
国际会议
The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)
昆明
英文
222-222
2016-10-17（万方平台首次上网日期，不代表论文的发表时间）