NEWS CENTER
Oasis Iceberg
11
2024
-
07
Schematic Diagram of Closed-Circuit Cooling Tower Operating Principle
Operating principle: Internal circulating water system: The cooled circulating water flows out of the tower through the coil and is pumped back to the heat source (the equipment being cooled) by the system’s circulating water pump. After absorbing heat and warming up, this water returns to the coil for further cooling. External circulating water system: External spray water comes into contact with the coil and packing material, transferring heat to cool the internal circulating water within the coil. The cooled water then collects in the lower sump and is pumped back to the spray tank by the spray water pump, ready to be reused in the cycle.
Oasis Ice Peak Cross-Flow Closed Cooling Tower
Operating principle:
Internal circulating water system: The cooled circulating water flows out of the tower through the coil and is pumped back to the heat source (the equipment being cooled) by the system’s circulating water pump. After absorbing heat and warming up during the heat exchange process, the circulating water then returns to the coil for further cooling.
External circulating water system: External spray water is cooled as it comes into contact with the coil and packing, transferring heat to cool the water circulating inside the coil. The cooled water then falls into the lower water tank, where it is pumped back to the spray water tank by the spray water pump for another round of circulation.
The internal loop facilitates heat and mass exchange between the cooling water flowing through the coil and the spray water and air outside the tubes, preventing direct contact between the cooling water and air that could lead to water quality contamination. Additionally, since the spray water is pre-cooled by passing through PVC packing material, the heat transfer efficiency is significantly enhanced.
Oasis Ice Peak Counterflow Closed Cooling Tower
Work process:
The spray pump draws water from the sump, pumps it to the upper part of the heat-exchange coil, and then sprays it upward in an umbrella-like pattern through nozzles. This creates a continuous, even water film that evenly coats the outer surface of the tubing. As the water flows over the tubes, some of it absorbs the high-temperature refrigerant's thermal energy, converting it into latent heat of vaporization and causing the water to evaporate into a gaseous state. Meanwhile, the refrigerant inside the tubes is cooled or condensed back into liquid form. The non-evaporated spray water then drips back down into the spray water sump.
The ventilation system features a suction-type fan at the tower's top, which draws air from inside the tower and exhausts it outward. Meanwhile, cool, dry air from outside the tower enters through the air intake grille, passes through filters to remove impurities, and then flows upward along the bottom of the heat-exchange coil. This process carries away the evaporated water vapor, increasing both the humidity and temperature of the air before it is finally expelled back outside by the fan.
A float valve is installed inside the spray water tank to automatically replenish and supply water when the water level drops, ensuring a consistent water level in the tank.
Electrical control automatically manages the start and stop of the spray pump and fan based on the refrigerant outlet temperature, achieving energy-saving goals.
Oasis Ice Peak Composite Closed-Loop Cooling Tower
How it works:
The working fluid (water, oil, or other liquids) flows through the coil, while the outer wall of the coil is continuously sprayed with water. Heat from the fluid is transferred through the tube walls, causing the water and air to become saturated with moist, hot steam. This steam is then exhausted into the atmosphere by a fan. Meanwhile, the spray water circulates through PVC heat-dissipating fins, where it gradually cools down before being reintroduced into the system. Fresh incoming air flows in the same direction as the cooled spray water, creating a concurrent airflow pattern. Primarily relying on the principle of wet-heat conduction, this closed-loop cooling tower design uniquely features a mechanism that significantly minimizes scale buildup on the outer surface of the coil—thus enhancing its efficiency and longevity.
Previous Page
Previous Page
Oasis Bingfeng Fluid Equipment Co.,Ltd
Contact Phone:+86 4000 616 676
Fax:+86 0310 3178005
E-mail:sales@hdbingfeng.com
Contact Address:No.1, Happiness Road, Feixiang Economic Development Zone, Handan City, Hebei Province
Copyright©2024 Oasis Bingfeng fluid equipment co., ltd