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Characteristics and Differences of Axial Flow Fan and Centrifugal Fan

  • Date:21-07-2017
  • Abstract:

    Axial fan is characterized by fluid flow along the fan' […]

    Axial fan is characterized by fluid flow along the fan's axis. Such as fans and exhaust fans in the home. And centrifugal is the fluid from the fan inhalation after the use of centrifugal force to the fluid from the circumferential direction to throw out, such as blowers, range hood

    What to choose depends on consideration of flow and system resistance losses

    Centrifugal fan, the biggest drawback is the large size, because the two different structure, in the same air volume, the same wind pressure case, the centrifugal fan power consumption is larger than the axial fan, but the noise is small, so the axial fan used in fire and ventilation. In the high-end buildings in the building, many require priority use of centrifugal fans.

    The fundamental difference is in the mechanical structure of the fan:

    The diameter the axial fan is limited to the diameter of the shell, the centrifugal fan does not have the limitation of this aspect. It can adopt the blade forward or backward blade, and the wind pressure requirement is wider. And the cabinet can do silencer processing, noise indicators have a clear advantage.

    As the general use of the motor speed is low, the motor power, power consumption phase more. If you usually use ventilation system, try to use cabinet centrifugal fan, fire smoke is not commonly used in the system, the use of high-temperature axial fan more economical and reasonable!

    Centrifugal fan and axial fan difference is:

    1, centrifugal fan to change the flow of media within the duct, and axial fan does not change the flow of media within the duct;

    2, the former air volume and wind pressure are large, the latter air volume and wind pressure are very low;

    3, the former installation is more complex, the latter is relatively simple to install;

    4, the former motor and fan is generally connected through the shaft, which is generally in the fan motor;

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