No pains, a harvest, heat exchange fan are full of tears!
heat exchange fan blade air moving in the same direction as the axis flow. Heat exchange are similar to the impeller and propeller fan, it at work, the vast majority of the flow of air flow parallel to the axis, in other words, along the axis direction. Heat exchange fan when the inlet air flow is 0 static free air, zui power loss is low, when running with airflow backpressure increases power consumption will increase. Heat exchange fan is usually served on electrical equipment cabinets, sometimes integration on the motor, because of the axial flow fan is compact structure, can save a lot of space, easy installation at the same time, so widely used.
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