当前,我国矿山使用的通风机数量多,运行效率低,是能耗最大、浪费较严重的设备。据统计,全国矿用通风机的数量达数万台,功率从几千瓦至几百千瓦,最大的达到数千千瓦;实际使用中,其运行效率只有少数达到70％,通常为50％,左右,还有一部分仅为30％甚至更低;矿井通风消耗电能占全矿总能耗的30％~40％,少数矿井甚至高达50％。 At present, the number of ventilators used in mines in our country is large and the operating efficiency is low, which is the most energy-intensive and wasteful equipment. According to statistics, the number of mine ventilators in China reaches tens of thousands of units, with power ranging from a few kilowatts to several hundred kilowatts, reaching a maximum of several thousand kilowatts. In actual use, the operating efficiency is only a few of 70%, usually about 50% , And some only 30% or even lower; mine ventilation power consumption accounts for 30% to 40% of the total energy consumption of the mine, a few even as high as 50%.