中文摘要：

为了研究煤体瓦斯解吸过程温度场变化规律，自行设计加工了含有锗单晶的专用瓦斯吸附缸体，研制了瓦斯吸附解吸过程温度场测量实验系统，并应用红外热像仪对不同水分条件下煤体瓦斯解吸过程温度场变化进行了实验测量。应用SAT软件对红外辐射视频信号进行了数据处理，在此基础上应用希尔伯特一黄对红外辐射信号进行EMD分解，有效的去除了红外辐射噪声信号的影响，得到了瓦斯解吸过程煤体表面温度场的变化规律。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；瓦斯解吸所造成的温度下降与水分含量大小有明显的对应关系，煤样水分含量越高，则温度降低的越少，温度下降的幅度也越小。对不同水分条件下煤体瓦斯解吸过程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。

英文摘要：

In order to study the temperature change rule of coal gas desorption process, the special gas adsorption cylinder containing germanium single crystal was designed and manufactured, and the experi- mental system for measuring the coal temperature fields in coal gas desorption was developed. With infra- red thermal imager, the temperature variation in the process of coal gas desorption under different pres- sure was analyzed. The infrared video signal got by the experiment was processed with SAT. Then the in- frared radiation signal was disposed by EMD with Hilbert-Huang and the infrared radiation noise was ef- fectively removed. The research result showed that the desorption process,with the change of the temper- ature, was an endothermie process. The coal absorbed heat when the gas was desorpted and it made the temperature drop. The coal body temperature drop range had obvious corresponding relation with coal sample water content. The higher the coal sample water content, the smaller of the temperature drop was. The temperature variation curves in the prosess of coal gas desorption under different water content were fitted, it met the exponential function. The research result laid theory and experimental foundation for face coal and gas outburst non-contact prediction with infrared thermal image technology.