Drift Eliminator plays an important Role in Cooling Tower
The drift eliminators prevent small water escaping, taken up by cooling air in the cooling tower.
The drift eliminators are used not only for the new construction, but for repairs of cooling towers as well, both with natural and forced draft. A new line of drift eliminators has been designed to catch flying water droplets, with higher efficiency and lower air flow resistance.
Drift eliminators are designed to prevent large water droplets from escaping via the cooling tower air stream. They do this by forcing the droplets caught in the stream of air to causing a change in direction which reduces their velocity. They are directed into the blade walls and run back down into the tower. When drift eliminators are properly installed and maintained they prevent the treated water from escaping the cooling tower. This saves operators money on treating additional water and helps mitigate damage to the environment. The best drive eliminators keep drive losses under .001%.
Based on the application area and designed, there are three popular material of drift eliminator:
Polypropylene (PP) - a recyclable material that is both plastic and fiber, polypropylene can tolerate heat better than PVC. PP is also resistant against moisture but is susceptible to degradation when constantly exposed to UV.
Polyvinyl Chloride (PVC) - the most commonly used and also the lowest in cost, PVC drift eliminators are resistant from corrosion.
Metal - with its more robust nature, steel drift eliminators are ideal for use in higher temperatures and container shipments. However, metal is prone to corrosion, but can be reinforced with a coating for protection.