Views: 0 Author: Lisa Publish Time: 2025-09-20 Origin: Site
An industrial closed circuit cooling tower (also called a closed loop cooling tower) is a type of cooling equipment used to reject heat while keeping the process fluid (water, glycol, oil, etc.) completely enclosed and uncontaminated.
The process fluid circulates inside a coil (heat exchanger).
It never comes into direct contact with outside air, which prevents contamination, scaling, and evaporation losses.
Water is sprayed over the outside of the coil.
A fan draws air through the tower, causing evaporation of some of the spray water, which cools the coil and the process fluid inside.
The cooled process fluid is returned to the system (chillers, machinery, compressors, etc.).
The spray water is recirculated, with a small portion bled off to control cycles of concentration.
Coil Heat Exchanger: Galvanized steel, copper, or stainless steel.
Fan System: Induced or forced draft, axial or centrifugal.
Water Distribution System: Spray nozzles above the coil.
Drift Eliminators: Reduce water loss through carryover.
Basin & Pumping System: Collects and recirculates spray water.
Keeps process fluid clean and uncontaminated
Reduces fouling, scaling, and corrosion in the system
Lower water treatment cost compared to open towers
Can use glycol solutions for freeze protection
Suitable for industrial, HVAC, and process cooling applications
Chemical and petrochemical plants
Power generation
Steel and metal processing
Data centers
Large HVAC systems
Food & beverage and pharmaceutical industries
