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LOW NOISE FAN
Airfoil-shaped blades are totally fabricated from
fiberglass reinforced polyester (FRP) with an additional
epoxy coating for the resistance of ultra violet ray and acid
rain corrosion. The hubs are of cast aluminum alloy.
Blades with large chord are axial type with adjustable pitch for permitting
maximum utilization of rated horsepower and optimum performance. The aerodynamic
shape together with the lower tip speed ensure a lower noise level.
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MOTOR AND DRIVE
The fan motors are totally enclosed fan cooled (TEFC) foot mounted with
weatherproof IP44 Class E insulation. The motors are mounted on an
adjustable base located inside the fan stack ensuring lower noise level.
The fans are vee-belt driven and are located in the bottle neck of
fan stack ensuring free and smooth air discharge and high efficiency
with low energy consumption. (IP 55 Motor can be provided upon request) |
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3 IN 1 FILLER
Filler is vacuum-formed of 0.4mm thickness PVC film with excellent
chemical and high distortion resistance, and is suitable for operation
with inlet water temperature up to 55o C . Its compact small package
design is easier to taking out for cleaning.
The special configuration of the filler incorporates the function
of drift eliminator, louver and wet-deck surface. The honeycomb shaped
louver feature contributes minimum resistance to airflow and prevents the ingress of foreign matters.
The drift eliminator feature prevents water droplets from escaping in the
exhaust air stream so as to ensure the drift loss to be less than 0.01% of circulating water flow rate.
The wet-deck surfaces are specially designed to provide maximum air/water
contact and low air pressure drop to ensure high efficient heat transfer.
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DISRIBUTION SYSTEM
FRP open type gravity flow hot water distribution trays are non-corrosive
and long life and are specially designed for nonclogging operation and ease
of inspection. A distribution cap is attached on top prevents water from
splashing out and a redistribution layer of PVC mesh is placed on top of
the filler to provide full coverage of the filler by gravity feed. |
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STEEL STRUCTURE
All supporting steel members are hot-dip galvanized to minimize rusting
and corrosion ensuring long service life even in corrosive atmosphere.
The stainless steel hardware members are also available upon request. |
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CASING AND BASIN
Casing and basin are made of FRP which excels in corrosion ,
c hemical and weather resistance. It is light weight and easy to
assemble and obviates need for painting , and thus reduce maintenance
costs and guarantees long dependable service. |
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FAN STACK
Fan stack are made of FRP. The special aerodynamic design as well as the
location of fan provide more than 10% of motor power saving. Furthermore,
because of the longer stack, it can discharge the hot moist air away from
the tower so as to minimize the chance of re-circulation. |
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INSPECTION DOOR
Inspection doors are furnished to provide convenient access to the interior
for inspection, maintenance, adjustment of float valve, cleaning of the
lift-out strainer and flushing of the sump. |
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