“A cooling tower is a device that cools water by exchanging heat and mass with the air passing through it, resulting in a drop in water temperature.”
An open cooling tower is a device that dissipates waste heat produced in industrial processes or refrigeration air conditioning by utilizing the contact between water and air through the process of evaporation. The basic principle is as follows: dry (low enthalpy) air, after being drawn by the fan, enters the cooling tower through the inlet grid; high-temperature water molecules with a high saturated vapor pressure flow towards the lower-pressure air. Wet (high enthalpy) water is sprinkled into the tower from the spray system. When water droplets come into contact with the air, two things occur: first, direct heat transfer between the air and water, and second, due to the pressure difference between the water vapor surface and the air, evaporation occurs under pressure. This involves transferring the sensible heat of the water to unsaturated dry air through heat exchange, and some of the water evaporating carries away the latent heat, thereby achieving the purpose of cooling the circulating water.
Application Range:
Waste heat generated during industrial production or refrigeration processes is typically carried away using cooling water. The role of a cooling tower is to exchange heat between the cooling water carrying the waste heat and the air within the tower, transferring the waste heat to the air and dissipating it into the atmosphere. For example, in a power plant, boilers heat water into high-pressure steam, which drives a turbine to generate electricity. After the turbine has done its work, the exhaust steam is sent to a condenser where it undergoes heat exchange with cooling water and condenses into water, which is then pumped back to the boiler for recirculation. In this process, the waste heat from the exhaust steam is transferred to the cooling water, raising its temperature. The cooling water carrying the waste heat then transfers its heat to the air in the cooling tower, which is expelled into the atmosphere through the exhaust duct. Applications of cooling towers: Mainly used in air conditioning cooling systems, refrigeration series, injection molding, leather production, foaming, power generation, steam turbines, aluminum profile processing, air compressors, industrial water cooling, etc., with the most frequent use in air conditioning cooling, refrigeration, and plastic chemical industries.
