FRP Round Shape Cooling Towers

Casing (F. R. P.)

The F. R. P. cooling tower casing has sufficient strength to adequately withstand wind velocities up to 60m/sec. (134 mph), earthquakes and vibrations.

Water Basin (F. R. P.)

The water basin like the tower casing is made of FRP. It is bowl shaped, with a cylindrical auxiliary suction tank at the bottom. This construction eliminates the danger of drawing air into the pump when operating with minimum water in the basin. A drain is provided to facilitate the removal if accumulated dirt from the bottom of the tank. The bowl shape of the water basin facilitates the cleaning of the tower interior.

Fillings

The fillings are made of PVC. They have excellent heat exchange efficiency and remarkably good chemical resistance. These fills are totally enclosed in the tower, thus excluding them from sunlight and minimizing the growth of algae .

A pre-eminent quality and long life fill consists of modular block of PVC honey combs construction to create prolonged contact time of hot air with water for maximum heat transfer.

TECHNICAL DATA OF PVC FILLS

1Standard Type of PVC Fills   :  600 mm X 300 mm X 150 mm

2PVC Honey Combs: 25 mm (12.5 + 12.5)

3Corrugation Pitch: 2.8 mm

4Corrugation Depth  : 3 mm

5Spiral Angus : 21

6No. of PVC sheets per 150 mm width: 12

7Heat Transfer area / Cu Ft fill vol. : 1 Cu Ft.

8Thickness of finished fill  : 0.25 mm

Sprinkler

The sprinkler consists of four PVC sprinkler pipes screwed into a rotating bead and is mounted on the top of the stand pipe mounted centrally in the tower. The sprinkler assembly rotates at 5 to 7 RPM by reaction force from the circulating water which is discharged at low pressure out of holes along the sprinkler pipes. The sprinkler pipes require a water head loss of only 2 meters to give the necessary rotation. As the sprinkler pipes are screwed into the rotary head and secured by threaded lockouts the specified revolution speed can be maintained by adjusting the sprinkling angle in accordance with the flow of water.

Special design consideration has been given to the rotary sprinkler head with respect of corrosion, abrasion assembling. The sprinkler head is made of aluminum alloy and fitted with ball bearings to take thrust and radial loads. These bearings ensure that the sprinkler head revolves smoothly even with reduced circulation water flow.

Drift Eliminator

Spirally bound Drift Eliminator is made of PVC it is designed to reduces drift losses and cause negligible drop in air pressure.

Fan

An aerodynamically designed axial flow type fan is specifically designed for cooling tower use. A well balanced fan delivers large air volume at high efficiency and low noise level. The fan blades and hub are of cast aluminium alloy (LM-6). The direct driven fan with variable pitched blades . Fans are coupled to slow speed weather proof motor in IP-55 construction. The mechanical equipment is so designed that maintenance of motor and fan blades can easily be carried out without removal of the entire system.