井下降温室温度场演化规律研究

Study on the Temperature Field Variation Law in Underground Greenhouse

随着煤矿开采深度的加深,热害加重,现有的整体降温方式不能满足井下需冷要求,需要局部降温来缓解矿井热害。根据唐口煤矿现有的局部降温室构造建立模型,通过数值模拟的方法对降温室温度演化规律进行分析,并通过现场实测验证了规律,得出了较为合理进风条件,即风速为1.5m/s、风温为18℃的通风条件能耗较少且热舒适度较好。

With the deepening of mining depth and the aggravation of thermal harm, the existing cooling methods cannot meet the requirements of underground cooling, and local cooling is needed to alleviate mine thermal harm. According to the existing local greenhouse structure in Tangkou Coal Mine, the change of greenhouse temperature is analyzed by numerical simulation, and the law of change is verified by field measurement, and the reasonable air intake conditions are obtained. Namely, the ventilation condition with wind speed of 1.5 m/s and wind temperature of 18℃ consumes less energy and thermal comfort is modest.