潮湿巷道风流温度与湿度变化规律分析

通过对矿井风流与围岩热湿交换理论的研究,提出理论上更可靠的风流温、湿度计算方法,编制了模拟解算矿井风流与围岩热湿交换的计算机程序,解算出潮湿巷道风流温度及湿度的变化规律,并分析通风时间、湿度系数等参数对风流温度及湿度变化规律的影响;沿风流流动方向,风流温度及湿度不断增加;巷道风流温度及湿度随着通风时间的增加而不断减小,通风时间越长减小的幅度越小;围岩壁面湿度系数对风流温度及湿度的影响较大,其他参数不变时,壁面湿度系数越大,风流温度越小,风流湿度越大。

Analysis on the Changing Rule of Airflow's Temperature and Humidity in Wet Airway

A theoretically more reliable and accurate method to determine the temperature and humidity of airflow is put forward according to the study on the principles of heat-and moisture-transfer between airflow and the surrounding rock in mine. The changing rule of airflow's temperature and humidity in wet airway is obtained by the program that simulates heat- and moisture-transfer between airflow and the surrounding rock. The influence of ventilation time and wetness factor on the change of airflow's temperature and humidity is analyzed. The result indicates that airflow's temperature and humidity increases along the airway,and decreases with the extension of ventilation time; the longer the ventilation time is, the smaller the range decreased is. The wetness factor of the airway surface has a significant influence on airflow's temperature and humidity; when other parameters are fixed, the airflow's temperature decreases with the increase of wetness coefficient, but, the airflow's humidity increases with wetness coefficient.