采空区煤矿巷道温度变化引起煤炭自燃的在线监测

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144005.0399

李佳琦 Li Jiaqi, 倪建明 Ni Jianming, 陈贵 Chen Gui, 刘文革 Liu Wenge, 田驰 Tian Chi, 李川 Li Chuan

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引用次数: 2

摘要

在矿井火灾中，空区自发煤的比例约为70%。50%以上的国有煤矿存在煤火危险。因此在线监测温度是非常重要的。在煤矿巷道中应用了一种温度传感器。该传感器的原理是将温度变化转化为光纤布拉格光栅的波长位移。根据朱仙煤矿巷道煤的分布和扩散特点，在煤矿巷道顶部沿巷道方向每隔2mlong安装本安分布式光纤光栅温度传感器。实现了对该区域的实时温度监测。

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Gob coal mine tunnel temperature changes caused by spontaneous combustion of coal online monitoring

The proportion of gob coal spontaneous is about 70% in mine fire.More than 50% of state-owned coalmine exist the danger of coal fire.So online monitoring of temperature is very important.A temperature sensor is used in the coal mine tunnel.The sensor principle is that temperature change is transited into fiber Bragg grating wavelength shift.According to Zhu Xian coal mine tunnel coal distribution and diffusion characteristics,at the top of coal mine tunnel,every 2mlong,intrinsically safe distributed fiber Bragg grating temperature sensors are installed along the roadway direction.A real-time temperature monitoring of the area is achieved.

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".