自然风压影响因素分析及井巷风流温度分布规律研究

Study on Influence Factors of Natural Ventilation Pressure and Distribution Law of Air Temperature in Shafts and Tunnels

基于流体力学与热力学对自然风压进行详细研究,从理论上分析自然风压形成的机理,从结构上分析影响其大小的因素,并对自然风压的影响因素进行深入研究。在合理假设的基础上,研究井筒空气柱温度的分布规律。通过对某矿井筒温度测量拟合其温度随深度变化的曲线并对其可靠有效性进行检验。

Based on fluid mechanics and thermodynamics, natural ventilation pressure was studied in detail. The formation mechanism of natural ventilation pressure was analyzed theoretically and the factors that affecting natural ventilation pressure were analyzed structurally. Then, on the basis of reasonable assumption, the distribution law of the temperature of the air column in the shaft is studied. After that, using the measured temperature of a mine shaft, the curve of its temperature varied with the depth was fitted and the reliability and validity of the curve was tested.