矿内空气非定常流动能量方程及在测阻中的应用

Non－stationary Flow Energy Equation for Mine Air and Its Application in Resistance Measurement

建立矿内空气非定常流动能量方程，分析了压力周期矩形脉冲在有调节风窗或风门的巷道中的瞬态特性。针对采用气压计基点法测量矿井通风阻力时，测点压力的振荡造成巷道通风阻力出现负值的情况，提出了两测点间通风阻力测算式的修正公式。

This paper provides the energy equation for non－ stationary mine airflow and analyzes transient characteristics of step pulse of periodical pressure in an airway when there is an air door or regulator. The head loss between stations sometimes generates a negative value due to pressure oscillation at stations induced by disturbances when an altimeter survey in conducted in the single－ base method. A correction formula of the head loss between two points in mine ventilation system is recommended.