红外技术应用煤体瓦斯解吸过程温度测量  

Measurement of temperature variation in coal gas desorption based on infraed imaging technology

作　　者：刘纪坤[1,2] 何学秋[2] 王翠霞[1] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]中国矿业大学(北京)资源与环境工程学院,北京100083

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第9期1161-1165,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(51174157);西安科技大学博士启动基金资助项目(2013QDJ005);西安科技大学科研培育基金资助项目(201244)

摘　　要：为了研究煤体瓦斯解吸过程温度场变化规律,应用红外热像仪对不同变质程度的煤体瓦斯解吸过程温度变化进行了实验测量.实验结果表明:煤体对瓦斯的解吸过程是吸热过程,伴随有温度的变化,煤体解吸瓦斯的同时对外吸收热量,从而使煤体的温度下降;煤的变质程度不同,煤体温度下降幅度也不相同,煤的变质程度越高,温度下降的幅度愈大,按照温度下降的大小依次为无烟煤>肥煤>瘦煤>焦瘦煤.对煤体瓦斯解吸过程中的温度变化曲线进行了拟合,其温度变化曲线符合指数函数.研究结果对应用红外热像技术进行工作面煤与瓦斯突出非接触式预测预报奠定了理论与实验基础.In order to study the temperature change rule of coal gas desorption process,with infrared thermal imager,the temperature variation in the prosess of coal gas desorption under different rank was analyzed.The research result shows that the desorption process,with the change of the temperature,is an endothermic process.The coal absorbed heat when the gas is desorpted and it makes the temperature drop.The coal body temperature drop range is different when the degree of coal metamorphism is different.The higher the degree of coal metamorphism,the greater the magnitude of the temperature drop.According to the size of the temperature drop,the order is anthracite > fat coal > lean coal >coke lean coal.The temperature variation curves in the prosess of coal gas desorption under different pressure were fitted,it meetted the exponential function.The research result laid a theory and experimental foundation for face coal and gas outburst non-contact prediction with infrared thermal image technology.

关 键 词：煤 变质程度 瓦斯突出 解吸 温度变化 红外热像 预测预报 

分 类 号：TD712[矿业工程—矿井通风与安全]