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子午加速轴流型式风机是一种好的轴流风机。它的工作叶轮随通流面积沿轴向逐渐缩小、气流速度沿子午流线逐渐增加。子午加速轴流式风机结构简单紧凑、成本低、噪音小、效率高。它的压力系数比普通轴流风机高、流量系数比离心式风机大。尤其是其动、静叶片不需采用翼型剖面,可用钢板压制而成。因而叶轮制造、更换方便,检修时间短,费用低。姚孟电厂国产30万千瓦机组的普通轴流式风机,其动、静叶片均为机翼型。由于磨损每三个月需堆焊耐磨焊条一次,每一
Meridian accelerated axial flow fan is a good type of axial fan. Its work impeller along the flow area along the axial shrinkage, airflow velocity along the meridional streamline gradually increased. Meridian Acceleration axial flow fan structure is simple and compact, low cost, low noise, high efficiency. Its pressure coefficient than ordinary axial fan, flow coefficient than centrifugal fan. In particular, its dynamic and static blades without the use of airfoil profiles can be made of steel pressed. Thus impeller manufacturing, easy replacement, maintenance time is short, low cost. Yaomeng power plants made 30 million kilowatts of ordinary axial fans, the moving and static blades are airfoils. Due to wear every three months to be surfacing wear electrode once, each one