摘要
在对轴流风机设计方法进行改进的基础上,借助平面叶栅资料,对混流式通风机叶轮进行设计,使该风机基本无不稳定工况区,风量变化小,具有较稳定的高效率。在采用JD型局扇电机综合保护启动器、润滑周期长的轴承,并改进了电机的防潮密封性能后,该风机的噪声比同类风机降低14dB(A)左右,延长了使用寿命。
Based upon the improvement of design method of axial-flow fan, the blade wheel of mixed-flow fan is modified by using plane cascade material. Thus the mixed-flow fan can work at almost all work cases with little change of air volume and stead high effeciency, With model JD booster fan motor protective starting device and well lubricated bearing, the noise of the fan is about 14dB(A) lower than that of others after improving dampproof seal chararistics of its motor. In such a manner, the fan can be used more time and more effective than ever.
