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本文对矿井通风的某些基本性质进行了分析和论证。运用基本性质证明了等阻电网的电流方向不全同于相似结构风网中相应风路的风流方向,因此线性方程法不能用于判别风流方向。提出了用极限方法确定判别某些网路风流方向的充分条件,并对现有的井巷风阻复合判别法和节点位势法进行了分析和探讨。
In this paper, some basic properties of mine ventilation are analyzed and argued. It is proved by using the basic properties that the current direction of the iso-impedance network is not the same as the flow direction of the corresponding air duct in the wind network of similar structure. Therefore, the linear equation method can not be used to determine the direction of the airflow. In this paper, the sufficient conditions for determining the wind direction of some networks by the limit method are proposed. The existing methods for determining the wind resistance of wells and the potential method of nodes are analyzed and discussed.