Closed-type cooling systems condensing a gas that flows inside a coil isolated from the outside. The gas condensation is achieved directly spraying water on the exchanger external surface by means of a distribution system. In its turn, the water is cooled by its own evaporation, fostered by a constant airflow.
The main structure is in hot-dip galvanized steel. Different materials can also be used upon request. The structure is reticular type, lightweight and very strong. The fan deck is walkable. The cladding is manufactured in FRP sandwich type panels.
The ventilation is induced draft type: the fan is installed in the upper part of the cooling tower. The electric motors are equipped with all the special features to avoid water entrance and condensation.
Motors are bolted on a steel support, welded inside the fan stack. The fan is coupled directly to the motor shaft. The fan is equipped with high performance blades. The fan stack is protected by a metal safety grid.
Cooling water is uniformly distributed on the external surface of the heat exchanger by a distribution system manufactured in PVC.
PP nozzles are no-clogging type. In case of maintenance, they are easily replaceable. According to the latest (anti-legionella) sanitary regulations for cleaning purpose, the connecting pipe between the circulation pump and the internal distribution system is easily removable.
Shell and pipe bundle heat exchangers are manufactured with smooth carbon steel tubes. Pipes diameter, thickness and geometry are optimized for the specific application.
The exchanger surface is hot-dip galvanized for perfect corrosion resistance. For particular applications, it is possible to supply stainless steel exchangers.
The drift eliminators are made up of modular elements, in PVC or PP sheets. The efficiency of the separator is excellent, such as to limit water losses due to dragging to a value below 0.005% of the circulating flow.
Made in polypropylene with a honeycomb structure, louvers are designed for induced draft counter flow cooling towers. They mainly perform two functions:
The basin is made up of fully welded steel sheets (painted or galvanized): the basin bottom is smooth and inclined in order to allow the complete water drainage during emptying and to prevent the formation of biological agents, such as legionella. The water recirculation pump is installed next to the basin, on a steel structure directly connected to it.
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sales@cappa-cooling.eu
