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在矿井风流与围岩热湿交换理论的基础上,对局部通风掘进巷道内风流与风筒内风流的热量交换过程进行了研究,提出了通过现场测定巷道内的风流温度、湿度、大气压力、风量和风筒内风流温度等参数来计算风筒综合换热系数的方法。并在平顶山煤矿现场进行了实测,通过对实测计算结果的回归分析,得出了确定风筒综合换热系数的计算公式。研究表明,通过计算巷道内平均风速可以获得风筒综合换热系数。
Based on the theories of mine air flow and heat and moisture exchange of surrounding rock, the heat exchange process between the airflow in the partially ventilated roadway and the airflow in the air duct is studied. The method of on-site measurement of the airflow temperature, humidity and atmospheric pressure in the tunnel, Air volume and wind tube temperature and other parameters to calculate the wind tube heat transfer coefficient of the method. And measured at the site of Pingdingshan coal mine. Through the regression analysis of the measured results, the formula to determine the overall heat transfer coefficient of the air duct was obtained. The research shows that the comprehensive heat transfer coefficient can be obtained by calculating the average wind speed in the roadway.