Vivek Engineers for EXAIR -Intelligent Compressed Air Products: Super Air Amplifiers: Evacuation of Smoke or Fumes

In the pneumatic industry, there are two types of Air Amplifiers. One type will amplify the inlet air pressure to a higher pressure. The other type uses the inlet air pressure to amplify the air volume. EXAIR manufactures the volume type called the Super Air Amplifiers™.

This change in air volume is called the amplification ratio. So, what does this mean? The definition of ratio is the relation between two amounts showing the number of times one value is contained within the other. For the EXAIR Super Air Amplifiers, the ratio is the value that shows the amount of ambient air that is drawn within the compressed air. The higher the ratio, the more efficient the blowing device is. The EXAIR Super Air Amplifiers can reach amplification ratios up to 25 to 1. This means that 25 parts of ambient “free” air is introduced for every 1 part of compressed air.

Why an EXAIR Super Air Amplifier? Like a fan, they are designed to move air. But fans use motors and blades to push the air toward the target. The fan blades “slap” the air which creates turbulent air flows and loud noises. The Super Air Amplifiers do not use any blades or motors to move the air. They just use a Coanda profile and a patented shim to create a low pressure to draw in the ambient air. In physics, it is much easier to pull than it is to push. The process of pulling air through the Super Air Amplifiers make them a more efficient, uniform, and quiet way to blow air.

Super Air Amplifier – flow region
To show the power of the Super Air Amplifier, we have a video of a model 120022. In the video, oil is being heated to generate smoke, and the Super Air Amplifier is placed in the center of an exhaust pipe. This demonstration was for a customer that was looking to evacuate vapors from an enclosed area. Other applications would include welding smoke, ventilation, exhaust tank fumes, and dust collection. You can see when the Super Air Amplifier is turned on and in operation in the video below.

EXAIR manufactures and stocks five different sizes ranging from ¾” (19mm) up to 8” (203mm) in diameter. Some of the benefits that the Super Air Amplifiers have is the inlet and outlet can be ducted for remote positioning. They are very compact and can fit into tight places like the exhaust pipe above. They do not have any moving parts to wear or need electricity to run. They only need clean compressed air to operate; so, they are maintenance-free. Another unique feature of the EXAIR Super Air Amplifier is the patented shim which optimizes the low-pressure to draw in more ambient air. As an added bonus, they are OSHA safe and meet the standards for noise level and dead-end pressure.

With the today’s cost to make compressed air, it is important to use it as efficiently as possible. The EXAIR Super Air Amplifiers have the ability to give effective blowing to remove debris, dry parts, transport material, cool objects, and clear smoke without using a large amount of compressed air. |