摘要
将气味探测技术应用于矿井输送机胶带火灾监测,以较早、准确地探测胶带火灾。煤、橡胶、机油是煤矿井下引发胶带火灾的3种主要可燃物质,气味传感器对这3种物质的受热响应实验表明,气味传感器可以在相对于火灾发生时较低的温度下监测到煤(50℃)、橡胶(65℃)、机油(110℃)受热产生的气味,并以不同温度下传感器的输出变化值(即巷道的气味变化)来判断是否发生了火灾。研究了气味传感器在井下的布置方式,认为气味传感器宜布置在气味浓度较高的混合浓度区,并通过相似理论模拟得出其间距L。
The paper is concerned about its research in how to use smell-detecting means for finding mine＇ s belt fire. The authors of this paper believe that it is a new approach to solving the key technological problems with the previous fire detectors, such as reaction-time delay, inaccurate reaction, etc. As is known, coal, rubber and lubricating oil are the three main factors that are most likely to lead to mine＇s belt fires. The results of our heating-response experiments show that smell sensors can be used to monitor the released smell by heating the three matters in a lower temperature, about 50 ℃ （coal）, 65 ℃ （rubber） and 110 ℃ （lubricating oil）. The change of smell sensors＇ output at different temperatures can thus be used to detect a fire. Laying smell-detecting sensors in a coal mine as a case study allow the present authors to conclude that smell sensors should be laid in the mixed area or between two sensors where smell concentration proves greater than in other areas.
出处
《安全与环境学报》
CAS
CSCD
2007年第1期118-121,共4页
Journal of Safety and Environment
