摘要
通过理论分析和实例计算，对矿井轴流风机的选型计算方法进行了讨论。指出，只有当风机的运行工况点与网路所需工况点重合，且运行工况点位于风机的最高效率点时，风机消耗的轴功率最小；最有利直径法是追求所选风机运行工况具有最高效率且风机拍功率最小的一种正确的选型设计方法。
Methods used in choosing axial flow fans for mining ventilation system are discussed. It is concluded that only when a fan's operating point has the maximun efficiency and also matches the requirement duty point of a system in which it operates, dose the fan the most favorable dimaeter method which is widely used.
