Description

A cooling tower is a heat rejection device, which extracts waste heat to the atmosphere though the cooling of a water stream to a lower temperature. The type of heat rejection in a cooling tower is termed "evaporative" in that it allows a small portion of the water being cooled to evaporate into a moving air stream to provide significant cooling to the rest of that water stream. The heat from the water stream transferred to the air stream raises the air's temperature and its relative humidity to **0%, and this air is discharged to the atmosphere. Evaporative heat rejection devices such as cooling towers are commonly used to provide significantly lower water temperatures than achievable with "air cooled" or "dry" heat rejection devices, like the radiator in a car, thereby achieving more cost-effective and energy efficient operation of systems in need of cooling. Think of the times you've seen something hot be rapidly cooled by putting water on it, which evaporates, cooling rapidly, such as an overheated car radiator. The cooling potential of a wet surface is much better than a dry one.
It is used for the cooling equipment in the line of metallurgy, such as the medium
frequency induction furnace, melting furnace, steel smelting furnace, casting, and rolling mill, etc. It is also used in the cooling and dc in the line of spaceflight, electronic, instrument, textile, injection, and electric power, etc.

Working principle
 

Working fluid (water, oil or other fluid) flowing in the coil, coil wrap wall was spray water, the fluid heat transfer through the wall, the formation of air saturated with water and steam heat, heat from the fan into the atmosphere, water spray cycle is blocked back to the sink, little consumption, spray water cycle through the PVC heat sink to reduce water temperature, and the formation of fresh air into the flow of feng shui in the same direction, the coil was bustling, mainly rely on conduction, so that the operating principle the most important feature is the greatest possible scale inhibiting the formation of the outer wall of the coil.