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矿井通风阻力及其分布是了解和改善矿井通风状况所必需的重要数据之一。当前,矿井通风阻力测定主要是采用压差计法,这种方法需要人员多,时间长,因而影响了测定工作的开展。为此,我们研究用测定相对静压的方法来测定矿井通风阻力及其分布,取得了良好的效果。该法简便易行,1～2人即可进行测定,并基本上能满足精度要求。同时也给实现通风监测和自动控制提供了条件。相对静压是指风筒或井巷内某一点的空气压力(静压)与其外部空气压力的差值。如果外部的空气压力等于该处的正常大气压
Mine ventilation resistance and its distribution is one of the important data necessary to understand and improve mine ventilation. Currently, the determination of mine ventilation resistance is mainly the use of pressure gauge method, this method requires more staff, a long time, thus affecting the determination of the work. To this end, we study the measurement of relative static pressure to determine the mine ventilation resistance and its distribution, and achieved good results. The method is simple and easy, 1 ~ 2 people can be measured, and can basically meet the accuracy requirements. It also provides the conditions for achieving ventilation monitoring and automatic control. Relative static pressure is the difference between the air pressure (static pressure) at a certain point in the air duct or shaft and the outside air pressure. If the external air pressure is equal to the normal atmospheric pressure there