在进行经济技术性分析后，最终确定风机的设计方案，进而确定通风机适当的级型式、叶轮尺寸、轮毂比、转速和叶片数等基本参数。
Final design scheme is confirmed after economic and technical analyse. Then, axial fan 's stage type, impeller diameter, hub ratio , specific speed and the number of blades are decided.
变角调节从构造来看，轴流泵叶轮具有巨大的轮毂，便于安装可调角度的叶片。
Variable Angle adjustment from the structure, the axial flow pump impeller with enormous wheels, easy to install adjustable Angle blade.
叶轮与外转子电机构成整体，成为叶轮轮毂的驱动电机被气流高效地冷却，可以延长风机寿命。
The impeller is integrated into the external rotor motor so that the motor is equal to a wheel hub. So the motor can be cooled by the airflow efficiently to prolong life.
一叶轮，具有一轮毂及多个环设于该轮毂周围的动叶片；
The fan comprises a frame, an impeller formed by a wheel hub and motive blades around the hub.
所述叶轮包括叶片和轮毂，所述叶片与叶轮轮毂通过一弯拱形水平轴相连。
The impeller comprises a blade and a hub, wherein the blade is connected with the hub of the impeller through a level shaft in a shape of a bended arch.
叶轮由叶片、盖板和轮毂组成。
叶轮由叶片、盖板和轮毂组成。
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