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Views: 0 Author: Site Editor Publish Time: 2025-09-28 Origin: Site
An Industrial Closed Circuit Counter-Flow Cooling Tower is a heat rejection device that cools process fluids (usually water or glycol mixtures) without exposing them directly to the air, ensuring clean, uncontaminated fluid circulation — ideal for industrial process cooling, HVAC, and machinery cooling.
A closed circuit cooling tower operates with a coil (heat exchanger) inside the tower.
In a counter-flow design, air moves vertically upward, opposite to the spray water that flows downward over the coil.
Process fluid circulates inside the coil (closed loop).
Spray water is pumped and sprayed over the coil to absorb heat.
Ambient air is drawn upward by a fan, removing heat via evaporation.
The spray water is cooled in the process, collected in the basin, and recirculated.
This ensures the process fluid never contacts air, staying clean and corrosion-free.
| Component | Function |
| Coil (Heat Exchanger) | Transfers heat from process fluid to spray water |
| Spray Pump | Circulates water over the coil |
| Fan Assembly | Induces airflow through the tower |
| Drift Eliminators | Reduce water droplets leaving with the air |
| Spray Nozzles | Distribute water evenly over the coil |
| Cold Water Basin | Collects cooled spray water |
| Casing / Structure | Encloses the system; often FRP or galvanized steel |
| Access Doors | For maintenance |
| Motor | Drives the fan (can be direct or gear drive) |
| Parameter | Typical Range |
| Capacity | 50 – 5000 kW (varies) |
| Flow Rate | 10 – 1000 m³/h |
| Approach Temperature | 3–6°C |
| Temperature Range | 5–20°C |
| Design Wet Bulb | 25–28°C typical |
| Fan Type | Induced draft axial fan |
| Material Options | Galvanized steel, stainless steel, FRP casing |
✅ Closed loop – prevents contamination of process fluid
✅ Low maintenance – no scaling inside coil
✅ Energy efficient – evaporative cooling effect
✅ Compact footprint – counter-flow design is more space-efficient
✅ Long lifespan – corrosion-resistant materials
Injection molding machines
Air compressors
Induction furnaces
HVAC chillers
Chemical and pharmaceutical plants
Food & beverage cooling systems
Evapco – ATC/ATC-E Series
BAC (Baltimore Aircoil) – CXV, FXV Series
SPX / Marley – MH Fluid Cooler
King Sun / Liang Chi / ZheJiang AOSHUAI AOSUA (China)
MITA / Paharpur / Kelvion
Imagine:
Coil bundle in the center
Spray nozzles above the coil
Air inlet louvers at sides
Fan at top (induced draft)
Water basin below
