Closed Circuit Cooling Towers

Dry operation and adiabatic modes reduce or eliminate water consumption.

Closed circuit cooling towers operate in a manner similar to open cooling towers, except that the heat load to be rejected is transferred from the process fluid (the fluid being cooled) to the ambient air through a heat exchange coil. The coil serves to isolate the process fluid from the outside air, keeping it clean and contaminate free in a closed loop. This creates two separate fluid circuits: (1) an external circuit, in which spray water circulates over the coil and mixes with the outside air, and (2) an internal circuit, in which the process fluid circulates inside the coil. During operation, heat is transferred from the internal circuit, through the coil to the spray water, and then to the atmosphere as a portion of the water evaporates. Closed Circuit Cooling Towers offer highly efficient cooling solutions, by completely isolating the process cooling fluid from the atmosphere. Isolating the process cooling fluid prevents airborne contaminants from entering the system, protecting the quality of the fluid and reducing system maintenance due to fouling. Reduced fouling ensures full thermal performance throughout the life of the product, and minimizes system operating costs.

HIGH EFFICIENCY PERFORMANCE:
Heat exchanger coils with high thermal conductivity maximize performance to the highest point.
Technologies that maximize performance per KW used

LOWEST OPERATION AND MAINTENANCE COST:
Clean process fluids sustain the performance of high efficiency components
Reduces or eliminates cleaning the heat exchanger
Extends the life of the equipment

OPERATIONAL FLEXIBILTY:
Dry operation during winter months
Variable speed pumping to conserve energy without the potential of scaling the unit.

LOWEST WATER COSTS:
Lower volume of recirculating water reduce water treatment cost

Structure and External Casing
The Z-725 Mill Hot-Dip Galvanized Steel Construction is the heaviest level of galvanizing available for manufacturing closed circuit coolers and has more zinc protection than competitive designs using Z-275 and Z-600 steel

Heat Exchanger Coil
Konukısı’s coils are manufactured within the most stringent of quality control procedures. The coil assembly is then pneumatically tested at 15 bar under water to ensure its integrity in accordance with the European Pressure Equipment Directive (PED) 97/23/EC. The entire coil assembly is then hot-dip galvanized for industrial strength corrosion protection.

Fan
The standard fans are heavy duty statically balanced axial propeller type. The fans are constructed of extruded aluminum alloy blades, installed in a closely fitted cowl with venturi air inlet for maximum fan efficiency. Each fan blade is individually adjustable. The fan cowl is covered with a heavy gauge hot dip galvanized wire fan guard.

Electric Motor
Frame Sizes:56-200 Outputs:1,1 KW-30KW No. of Poles:4, 6, 8 Degrees of Protection: IP55, IP56, IP65 Voltage: rated supply of 400V, supply from 110V to 690V may be supplied on request frequency: 50 Hz or 60 Hz Motor frame sizes: 132 to 450 for cost iron isolation class: F as standart