What is A Closed Cooling Tower?
Closed cooling tower is also called evaporative air cooler. It places the tubular heat exchanger in the tower, and ensures the cooling effect through the heat exchange of circulating air, spray water and circulating water. Because it is a closed cycle, it can ensure that the water quality is not polluted, well protect the efficient operation of the main equipment, and improve the service life. When the outside temperature is low, the sprinkler system can be stopped to save water.
With the implementation of energy conservation and emission reduction policies and the increasing scarcity of water resources, closed cooling towers have been widely used in metallurgy, aviation, electric power, chemical industry, machinery, petroleum, food, plastic, rubber and other industries in recent years.
How Does A Closed Cooling Tower Work?
The closed cooling tower is a kind of equipment that uses the contact between water and air to dissipate the waste heat formed in industry or refrigeration and air conditioning according to evaporation. Wuxi Master Cooling Factory will share with you how the closed cooling tower works?
What is Process principle of closed cooling tower?
The heated working fluid inlet from cooling coils, then the waste heat be took away by the fall down spray water and reverse flow with the cold dry air which is inlet from the bottom of the tower and form to saturated vapor in the process. The heat is exhausted out of tower by the top fan and the water is collected to bottom tank and circulate continuously by the special evaporator.
Types Of Closed Cooling Towers
1: Cross-flow closed cooling tower
The fluid moves in the coil, the outer wall of the coil is wrapped by the spray water, and the heat is transferred through the tube. When the heat meets water and air, sufficient hot and humid steam is formed, and the heat is blown out by the fan. The spray water can be reused, which can largely inhibit the formation of scale.
2: Counter-flow closed cooling tower
The counter-flow closed cooling tower is to let the wind go up against the direction of the water flow from the bottom of the cooling tower. It interacts with the downward spraying water back and forth, and there are one or more fans at the top responsible for discharging hot and humid air to achieve the purpose of cooling. The used water can also be recycled and reused.
3: Combined flow closed cooling tower
The spray water flows both laterally with the cooling air and in the same direction as the cooling air and spray water, so it is called a composite flow structure.
Advantages Of Closed Cooling Towers
1. Compact Structure
Compare with other forms, there are no PVC fills inside, so this type’s structure is compact, installation area is less, meet the users’ space demanding.( We also could design the filled type according to customers’ requirement)
2. High efficiency
Few cooling blind area, high thermal efficiency. High air duct design, make sure the equipment to meet the demand of cooling air flow rate in operation.
3. Supporting auxiliaries
We can combine the tower with auxiliary together to be a whole suit, it will convenient for customers to operate, and easy to transportation & installation.