Square/Rectangular FRP Cooling Towers: DFC-60

Delta's DFC-60 Series(square cooling towers) utilize the induced draft counter flow principle of operation. Heated water enters via the hot water inlet passing through perforated branch pipes spreading the water evenly by the splash caps. Water is distributed over the heat exchange fill. Water flows as a thin film downward through the fill coming into direct contact with ambient air traveling upwards in a counter flow direction.

Water cooling is affected by heat transfer to the air in the form of evaporation and convention. To prevent the carry-over of water droplets by the fan, drift eliminators are mounted above the water distribution. The drift eliminator controls drift loss to less than 0.02 % of water in circulation.

Great flexibility is introduced by multi-cell cooling towers which can be tailored to meet individual cooling requirements and conditions. This design also assures a high degree of availability.

Design of square cooling towers

FRP square cooling towers are of vertical induced draft counter flow design with uniform water distribution and optimal heat transfer. Cooling towers can be installed independent of wind velocity.

Axial Fan

Specially designed energy efficient fans are induced draft axial type with adjustable pitch. Fan blades' pitch is factory set and dynamically balanced.

Casing of square cooling towers

The square cooling towers are made of tough fiberglass reinforced plastic (FRP) and has sufficient structural strength to withstand high wind velocity and vibrations. Gel coat is used for UV rays protection and longer life. The water sump is also of FRP and is leakproof.

Fill

The fill is of rigid polyvinyl chloride (PVC) and is of honeycomb design with very large contact surface area. The purpose of fill is to split the water and air into several streams to increase the time of contact and also heat transfer between air and water. The fills are available with a standard size of 24" x 12" x 6" with a thickness of 0.25 mm.

Motors

The motors are totally enclosed (IP-55) flange type, 415 V, 50Hz., induction weather proof with an extended shaft, and are specially designed for cooling towers.

Drift Eliminator

The FRP eliminator reduces the drift loss of water and it is made of rigid PVC Section.

Nozzle in square cooling towers

The performance of the square cooling towers greatly depends upon the water distribution over the fills. Nozzle distributes the water evenly through a wide spray angle. They are lightweight and reduce the frequency of clogging.

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