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为探讨矿井通风过程中巷壁与风流的热湿交换规律,更好地保证井下员工生命安全,运用Fluent求解器对热湿交换过程进行数值模拟。以正交试验设计为方法,选定影响巷壁与空气的热湿交换规律的10个因素进行正交试验。采用极差分析法和相关性分析法分析试验所得结果,探讨各因素对终点温度和终点相对湿度的影响。结果表明:对终点温度影响较大的3个因素依次为巷道壁温、巷道长度、进风温度,且都表现出正相关性。巷道壁面湿度对终点湿度影响最明显,成正相关,剩余各因素影响较小。最后对正交试验所得数据进行多元线性回归,得出拟合方程,将此用于风温和空气湿度预测。
In order to discuss the law of heat and moisture exchange between mine wall and wind flow in mine ventilation process and to ensure the safety of underground workers better, the Fluent solver was used to simulate the process of heat and moisture exchange. Orthogonal experiment design method was used to select the 10 factors affecting the heat and moisture exchange between alleyway and air. Analysis of the results using range analysis and correlation analysis to explore the impact of various factors on the endpoint temperature and endpoint relative humidity. The results show that the three factors which have a great influence on the terminal temperature are the wall temperature of the roadway, the length of the tunnel and the temperature of the inlet air, all of which show a positive correlation. The influence of the wall humidity of the roadway on the end point humidity is the most obvious, and it has a positive correlation, while the remaining factors have less influence. Finally, the data from the orthogonal experiment were subjected to multiple linear regression to obtain the fitting equation, which was used to predict wind temperature and air humidity.