Industrial Axial Flow Fans
Posted on November 19, 2018
The two most common types of industrial, Axial Flow Fans are Tube Axial Fans (or Ducted Fans) and Panel Fans or Wall Fans. Tube Axial Fans use a propeller, rotating in a round section of duct, which is mounted into ductwork of the same diameter to exhaust hot and/or contaminated air from a process or system. Panel Fans or Wall Fans use a propeller, rotating in a flat panel, which is mounted to a wall to exhaust air from a room or draw air into a room. Other Axial Flow Fans that incorporate the Tube Axial Fan design are Personnel Coolers and Air Circulators.
Tube Axial Fans is direct driven with the propeller mounted directly on the motor shaft or belt driven with the propeller mounted on a separate fan shaft and driven by the motor through belts and sheaves. Axial Flow Fans are ideal for moving giant volumes of air per minute at low pressures, rated in static pressure.
The term “fan” is used to describe either a fan or blower. To make the proper fan selection, you must consider the following conditions the fan will be subjected to:
- What is the air volume that will be required? This is rated in cubic feet of air per minute or the metric equivalent
- What is the temperature of the air going through the fan?
- What is the ambient air temperature outside the fan?
- Will the air stream be clean, dry air? Will there be any corrosive substances in the air?
- If the fan will be used to convey material, answer the following:
a. What is the material?
b. How much does the material weigh, in pounds per cubic foot?
c. How many pounds will you need to convey per minute or hour?
d. Is the material long and stringy or granular?
- Will there be any moisture in the air stream?
- What is the altitude where the fan will be operating?
- Is anything going through the fan that could be explosive?
- Does the location the fan will be operating in contain any explosive material, liquid or both?