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A cooling tower extracts heat from water by evaporation.  In an evaporative cooling tower, a small portion of the water being cooled is allowed to evaporate into a moving air stream to provide significant cooling to the rest of that water stream.  Evaporative Cooling towers are relatively inexpensive and very dependable means of removing low grade heat from your process.

Maintenance of cooling towers
 Check the overall condition of the unit and listen for any uncommon noises to establish a baseline of any potential issues.

 Before beginning any hands-on work, be sure to follow proper lock-out procedures and disconnect motor switches to ensure your safety.

 Inspect and clean debris from strainers to keep the system free of excess materials.

 Inspect the water distribution system and check for dry areas over the fill coil section to avoid scale build up and increase system capacity. If the surface is not fully wetted, check the nozzles for cracks and clogs.



 Flush dirt and debris from the cold water basin through the tower drain or sump strainer to maintain water filtration and keep dirt from collecting. Installing basin sweeper piping in addition to a filtration system will function as automatic maintenance.

 Check the makeup water supply for the appropriate predetermined water level to conserve water and reduce air entrainment.

 Adjust the bleed rate accordingly per your local water quality and evaporation rate regulations, preventing accumulation of solids in recirculating water.

 Fix any tension problems on the belt to ensure optimal belt-drive system performance.

 Routinely check oil level, oil quality, and shaft alignment for a gear-drive system following the manufacturer’s recommendations to assure reliable service.

 Lubricate fan shaft bearings every three months, at a minimum, to maintain proper operation. Installing automatic bearing greasers is easy and can eliminate monthly bearing maintenance.