为了解空气倍增器在使用时的风流特性,方便空气倍增器在矿井下的使用,选择实验方法,利用风筒、空气压缩机、储气罐及风速仪等装置建立空气倍增器通风实验系统。通过该实验系统对空气倍增器风流特性进行实验研究,对不同进风口距离和不同出风口距离对空气倍增器风速及质量流量的影响进行研究。结果表明,空气倍增器通风系统中,选择的进风口距离越小、出风口距离越大,空气倍增器在通风系统中的倍增效果越好,取得的相关结论能够为空气倍增器在矿井下上隅角瓦斯治理中的使用提供依据。

In order to understand the airflow characteristics of air multipliers during use and facilitate their use under mines, an experimental method is selected to establish an air multiplier ventilation experimental system using devices such as wind ducts, air compressors, air storage tanks, and anemometers, etc. Through this experimental system, the airflow characteristics of air multipliers are conducted to be experimentally studied, and the effects of different inlet distances and outlet distances on the air multiplier's wind speed and mass flow rate are researched. The results show that in the air multiplier ventilation system, the smaller the air inlet distance and the larger the air outlet distance, the better the multiplication effect of the air multiplier in the ventilation system. The obtained relevant conclusions can provide bases for the use of the air multiplier in the gas governance of the upper corner under the mine.