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一、双层隔热风筒的研制在深部较高的地热作用下,井下气温增高,特别是在通风困难以及机电设备较多、功率较大的情况下,一些采掘工作面的气温更高,常常超出《煤矿安全规程》规定的温度。这就使得工作面作业环境变坏,从而降低了劳动效率。为降低高温工作面的气温,单单靠增加工作面的风量(即提高工作面的风速),往往是无济于事的。这是因为在很多情况下,工作面的入风温度本身就很高。近年来,国内外都相继采用了制冷设
First, the development of double-insulated duct In the deep high geothermal effect, downhole temperature increases, especially in the ventilation difficulties and more mechanical and electrical equipment, power is larger, some mining face temperature is higher, Often exceed the “coal mine safety regulations,” the provisions of the temperature. This makes the work surface deterioration of the working environment, thereby reducing labor efficiency. In order to reduce the temperature of the working face at high temperature, it is often not helpful to increase the air volume of the working face (that is, to increase the wind speed of the working face). This is because, in many cases, the temperature of the air entering the work surface is high. In recent years, both at home and abroad have adopted the cooling set