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Design:
FRP Cooling towers are of vertical induced draft counterflow design
with uniform water distribution and optimal heat transfer. Towers
can be installed independent of wind direction.
Casing:
The tower casing is made of tough fibreglass reinforced plastic
(FRP) and has sufficient structural strength to withstand high wind
velocities and vibrations. UV - stabilised resin is used along with
gel coat for longer life. It is resistant to local impacts and even
if slight damage occurs, local repairs can easily be done. The portion
of casing housing fill and eliminator has a round cross section.
The water collection sump, also of FRP, is leak proof & avoids water
spillage.
Fill:
The fill is of rigid Polyvinyl Chloride (PVC) and is of honeycomb
design with very large contact surface area. The fill splits the
air and water into several streams, increasing the time of contact
and also heat transfer between water and air. The fill is in modules
and is packed in the tower casing without any cutting for curves.
The air pressure drop through the fill is negligible. The fills
are available with flute height of 6mm, 12mm, and 19mm with sheet
thickness of 1mm and 1.2mm.
Sprinkler:
Automatic rotary sprinkler system made of Nylon 66 material, with
rotary head and sprinkler pipe distributes the hot water over the
entire space of the filler. Sprinkler pipes are non-clogging, require
low pressure to operate and assures uniform water flow with minimal
operating pump head. The FRP eliminators attached to sprinkler pipe
are specifically designed for low pressure drop and minimises the
drift loss of water.
Axial Fan:
Specially designed energy efficient fans are of induced-draft axial
type with adjustable pitch. Material chosen are non corrosive of
plastic, FRP or aluminium alloy. The high efficiency design ensures
low running cost and the lowest possible noise level. Fan blade
pitch is factory set and dynamically balanced.
Motors:
The motors are totally enclosed (IP55), flange type, 420 V, 3 ph,
50 Hz, induction weather proof with SS304 extended shaft and are
specially designed for cooling tower application.
Corrosion Free:
The tower casing is of FRP, fill and eliminator are of PVC, and
SS304 fasteners are used, thus eliminating corrosion, the biggest
enemy of cooling tower. All steel components such as motor support,
water distribution pipes, hardware etc., are hot dip or spray galvanized.
Lightweight:
The towers are compact and light weight resulting in easy delivery
to site and installation. Light weight also saves on structural
and masonry. Roof installation can also be done without any special
reinforcements.
Installation, Service & Maintenance:
Towers of lower capacity are completely factory assembled before
despatch. At site the tower has just to be bolted, on the RCC /
brick masonry foundation, thus saving a lot of installation time.
Towers of higher capacity can easily be assembled at site and then
installed in a manner similar to small towers. Maintenance is considerably
reduced because fan, sprinkler fill and eliminator can easily be
approached from the top without disturbing the cooling tower casing.
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