With nearly every factory worldwide having
a compressor and millions of air tools being used daily, Exhausted
Air Recycling System (E.A.R.S.) was developed to solve the problem
of the wasted air exhausted from these tools. By returning this
air to the compressor E.A.R.S. has the ability to:
- Reduce tool noise
- Reduce airborne contaminants
- Decrease power consumption
- Increase the compressors volumetric output
- Extend the life of the compressor and the air tools
E.A.R.S. requires the air tools to have their exhausts ducted
back to the compressor which is fitted with a manifold to accept
this air.
By capturing the exhausted air at the tool all noise and contaminants
normally ejected next to the user are sent back to the compressor.
This means exhaust noise is significantly reduced and all tool
lubrication oil or foreign matter traveling in this air is also
taken away. Additionally there is no exhaust air blowing dust or
other matter around the workshop, ensuring a cleaner and far quieter
work environment.
Once the system is in operation E.A.R.S. can effectively become
closed loop, with the compressor recompressing and returning the
same air exhausted from the tool.
At this stage the compressor is no longer drawing in ambient air
and as such no moisture from humidity is being added to the system.
The return air is also at a higher than atmospheric pressure so
the compressor needs to do less work to compress this to the desired
pressure and thus less heat is generated by the compressor and
less heat is added to the air. The reduction in temperature and
moisture has a significant effect on increasing both the compressor
and the tool life.
The compressor also uses less power as a result of the pressure & flow
staying near constant in this cycle and thus the recovery time
for the compressor to return to its shut off pressure is reduced.
There is also a power saving as the E.A.R.S. fitted compressor
can maintain a higher flow rate, equivalent to that of a compressor
fitted with a larger and more power consuming motor.
The benefits of E.A.R.S. are therefore seen physically by the
operator as well as financially by the owner/company.
For years the pneumatic industry has been dominated by the mentality
that certain tools & equipment can only be run by certain sized
compressors. This in turn has generated the mindset that if you
want to run bigger tools or more of them that you will need a bigger
compressor.
Further we seem to be been happy to accept that the air that we
are using energy to compress & send to our tools is simply
no longer needed after powering the tools and can be wasted without
further thought.
Long has it been since the pneumatic industry has encountered
a technological break through, nor even a significant advancement,
and this has added to the one eyed frame of mind. Manufacturers,
distributors & operators have become complacent with the apparent
wasted air and even more surprisingly are oblivious to the extremely
high noise levels and environmental contaminants
being exhausted near the end user. Filtering and baffling in the
tool was introduced some time ago but these are no where near sufficient
and quickly become soaked in the wasted air contaminants. The tool
then becomes less efficient due to the increased back pressure
and the contaminants are again released near the operator.
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