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¤¤¤ DOMESTIC ¤¤¤ | ¤¤¤ COMMERCIAL ¤¤¤ | ¤¤¤ INDUSTRIAL ¤¤¤
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APPLICATION ¤¤¤
¤¤¤ M.S. & S.S.
AIRCURTAINS ¤¤¤
Making Barrier out
of thin air.
Imagine a barrier thats keeps out wind, insects, dust and evem the cold.But is totally
invisble and can be crosses by people and their machines effortlessly. This may sound like
some kind of force field from sci-fi fantasy, but it's actually pretty basic twentieth
century technology tats makes up the devices we call AIR CURTAIN.
Air curtains consist of a fan and nozzle system which creates a jet of
high-velocity air directed across a door opening, providing a protective air shield. The
air shield minimizes the transfer of heat, moisture, dust, fumes and insects through the
doorway. The air curtain fan adds kinetic energy to the air, providing resistance to the
penetration of unwanted air or particles. This added kinetic energy in the discharge air
also resists the penetration of outside air due to wind, as well as the invasion of
insects. The air is provided at a critical velocity and volume flow as well as a discharge
angle selected for its particular application. They enables traffic to flow
unobstructed through door openings while maintaining distinct environments, thus resulting
in energy savings. |
 Elevators |
: : Advantages of Air Curtains
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Environmental separation for
open doorways without the drawbacks of visibility-limiting solid barriers such as strip
and impact doors; |
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Reduced risk of accidents as
vehicles and people are able to move through doorways without obstructions to visibility
or movement; |
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Provide excellent resistance
to the penetration of outside winds; |
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Prevent the intrusion of
insects, fumes and dust; |
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Reduce mechanical door
maintenance costs; |
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More aesthetically appealing
than plastic strip doors or high-speed doors. |
: :Elevators Applications
These are used for a wide variety of applications from thermal barriers at shopping
mall entrances, to fly and insect prevention at restaurant service doors, to factory
freight doors for wind resistance and temperature separation.
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Insect Control
Sanitation maintenance applications require that this prevent airborne insects
from entering. For fly and insect control, the projects the high velocity air
jet across the opening, deflecting and prohibiting the entrance of unsanitary insects,
thereby maintaining sanitary conditions.
For applications such as fly and insect control which require maximum protection, it is
common and accepted to use a more powerful in order to achieve the necessary
level of protection. |
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Thermal Barriers
When dividing spaces with temperature differences, this equipment prevents the natural
flow of air caused by differing temperatures. The difference between indoor and outdoor
temperature creates an imbalance in density, and therefore a pressure variation which
causes the infiltration of outside dust wind. |
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Wind Resistance
In many instances the infiltration of unconditioned air is driven by a combination of the
temperature difference and the added problem of a prevailing wind at a door opening. This equipment resist this infiltration of outside unconditioned air by blocking and deflecting
the incoming wind. Wind resistance is achieved by using a well-designed curtain with
an appropriate velocity and volume of air, directed at the appropriate angle at the
exterior doorway. A factor often confused as a
wind condition is negative pressure. Negative pressure is created when more air is
exhausted from a building than is replaced through make-up wind equipment. These are
available that can remedy negative pressure conditions by delivering the appropriate
amount of make-up wind as well as functioning. |
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Separation of Indoor Environments
In many facilities there often exist manufacturing or production areas adjacent to either
offices or other clean environments, such as shown in Figure 5. The production side may
generate fumes, dust and heat which are undesirable in the adjacent areas. They
are ideally suited for these applications, repelling the undesirables without restricting
traffic. This is mounted on the clean side so as not to circulate the
contaminants through the unit, as well as to prevent blowing the contaminants into the
clean side |
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