摘要
本文对调节风窗面积计算公式进行了分析。实验研究证明，利用现有理论调节风窗面积计算公式求算调节风窗面积时误差较大，而误差与巷道的几何形状等因素有关。当利用现有理论调节风窗面积计算公式求算梯形巷道调节风窗面积时的误差比三心拱形巷道时的误差大，根据实验研究结果，提出了在三心拱形巷道安设调节风窗时的理论公式校正系数和校正公式。
The existing theoretical formula to calculate the orifice area on a door has been ana-lysed in the paper. It has been proved by test that there is an obvious error when using the ex-isting theoretical formula to calculate the orifice area on a door . The error is related to the cross section shape of the airway in which the regulator ls iocated . and the error using the existing the. oretical formula to calculate the orifice area in a trapezoid airway is larger than that in an three-center arced airway. The causes resulting in the error have been analysed. Based on the model test, the correct formula and factor to the existing theoretical formula have been put for-ward.
