FRP Square Shape Type Cooling Towers

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Square shape cooling Towers is a design in which the airflow is directed perpendicular to the water flow. Airflow enters one or more vertical faces of the cooling tower to meet the fill material. Water flows (perpendicular to the air) through the fill by gravity. The airflow is directly opposite to the water flow.

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Airflow first enters an open area beneath the fill media and is then drawn up vertically. The water is sprayed through pressurized nozzles near the top of the tower and then flows downward through the fill, opposite to the airflow. The cool water absorbs heat from the hot process streams which need to be cooled or condensed, and the absorbed heat warms the circulating water. The warm water returns to the top of the cooling tower and trickles down over the fill material inside the tower.


Square shape cooling tower contacts ambient air rising up through the tower either by natural draft or by forced draft using large fans in the tower. That contact causes a small amount of the water to be lost as windage (W) and some of the water (E) to evaporate. This method works on the principle that continuous particle removal will keep the system clean. Manufacturers typically package side-stream filters on a skid, complete with a pump and controls. For high flow systems, this method is cost-effective. Properly sizing a side-stream filtration system is critical to obtain satisfactory filter performance.

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Cooling Tower Casing is made of selected grade materials of tough Fibre Glass Reinforced Polyester & resins, etc. Additional embossing is done for extra strength in the case of big cooling towers.

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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.

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The fillings are made of PVC. They have excellent heat exchange efficiency & 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 a modular block of PVC honeycombs construction to create prolonged contact time of hot air with water for maximum heat transfer.

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The Header pipes are used for co-current water distribution systems. Air and water both travel together in the same direction from top to bottom. Hot water is allowed to spray through specially designed nylon/pp nozzles at a minimum of 0.5 kg./ sq. cm pressure. Water enters nozzle tangentially at the top and is given spiral action in the spiral chamber.

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The performance of the cooling tower greatly depends upon the water distribution over the fills. SCSP nozzles distribute water evenly through a wide spray angle without any dry pockets. They are lightweight and reduce the frequency of clogging. The Solid Cone Square Pattern (SCSP) nozzles produce a solid cone spray of water that is Distributed in a square pattern onto the fills.

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Reduces carryover losses of water. The eliminator is of rigid PVC (Applicable for square type cooling tower). The individual drift eliminators of S-shaped corrugated sheets are bonded with subsequent layers to create the structure. The entire area is thus divided into several fine S-shaped mini zones each removing water droplets on the entire surface of the cell.

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Specially designed energy efficient fans are of the induced-draft axial type with adjustable pitch. Material is chosen and is not corrosive of plastic, FRP or aluminum alloy. The high-efficiency design ensures low running costs and the lowest possible noise level. Fan blade pitch is factory set and dynamically balanced.

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The motors are totally enclosed (IP55), flange type, 415 V, 3 pHs, 50 Hz, induction weather proof with SS304 extended shaft and are specially designed for cooling tower application.

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This gearbox series for cooling towers and/or pulp and paper mixers are specially built to grant reliability to customers. This is made possible through a generous upsizing of both gears and bearings as well as a balanced internal gear arrangement, so to offer optimization of uniformity in balancing loads inside the gearbox. With the half casing, the periodic inspection and maintenance purposes are facilitated, especially in places that are not easy to access.