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Auxiliary Items
FANS
Air fin coolers generally employ
axial flow fans which develop large air volumes at
low static pressure.
SALIENT FEATURES
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Aluminium or FRP fans
- Manually adjustable pitch or auto variable pitch (AVP)
fans
- Dynamically balanced
DRAFT SYSTEM
The draft systems used in air fin coolers are
induced draft and forced draft.
Typical construction of these arrangements are shown
below
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Forced Draft
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Induced Draft
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VIBRATION MONITORING SYSTEM
Vibration is a common problem in any of the rotating
equipment. BGR Energy provides vibration monitoring
system along with the main equipment that monitors
the critical vibrations
– For easy access for maintenance, BGR Energy also
provides motor access platform.
DRIVES & TRANSMISSION
The fans of air fin coolers are usually
driven by electric motors either directly or through
V belts/HTD belts/PGGT belts or gear boxes.
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Direct drive:
Low speed up to 15 HP
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Belt drive:
V/HTD/PGGT belt – up to 60 HP with
dynamically balanced pulleys
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Gear drive:
Above 60 HP
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AIR FLOW CONTROL
Manual or automatic controlled louvers
Dual speed electric motors
Variable frequency/speed drive with control system
( VFD/VSD )
Automatic variable pitch (AVP) fans
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