Closed cooling tower is a deformation and development of traditional cooling tower, which is essentially a combination of evaporative cooling tower, cooler and wet cooling tower. The process fluid flows through the pipe, and the water in the collecting tank at the bottom of the tower is pumped by the spray pump, and then sent to the outside of the pipe for uniform spraying, and the indirect heat exchange with the process fluid is carried out. The air flows through the outside of the pipe under the action of the fan, and the heat is discharged out of the tower.

The working fluid (water or other liquid) is circulated in the coil of the closed cooling tower, and the heat of the working fluid is dispersed into the spray water flowing through the coil. At the same time, the air around the outside of the unit enters from the air inlet grille and flows upward through the coil in the opposite direction of the spray water flow. A small amount of water evaporates and carries away heat. The hot and humid air is discharged into the surrounding atmosphere by the ventilator. The rest of the water falls into the bottom sump, is recycled by the water pump to the water distribution system, and then is poured back onto the coil. This cycle repeats itself.

1. Compact structure, small floor area, suitable for customers with limited installation site area, simple installation, easy locations;
2. The metal outer plate is solid and durable, with strong corrosion resistance. The service life of stainless steel pipe (copper pipe) is long, and it is not afraid of high temperature;
3. It is suitable for cooling with high and low temperature difference in all industries. Especially suitable for high temperature differential cooling in metallurgy, casting and chemical industry.