Characteristics of closed cooling tower

A closed cooling tower utilizes pressure generated by a water pump or other pressure device to deliver high-temperature water (i.e. cooling water) from condensers, absorbers, or process equipment to the cooling coils of the cooling tower.
After entering the cooling tower, circulating water exchanges heat through its movement inside the tower and contact with the airflow. The return water passes through the pressure swirl nozzle device installed at the top of the tower and the upper part of the air duct, forming small water droplet particles that move vertically downward at high speed, increasing the surface area of the water droplets.
Water droplets encounter the rising airflow during their descent, slowing down their descent speed and prolonging the heat exchange time. The heat of the fluid is first transferred to the inner wall of the copper tube, then transferred from the inner wall to the outer wall of the copper tube, and then transferred to the spray water film. The water film and air form saturated wet and hot steam, and the heat is discharged into the atmosphere by the fan. Part of the water droplets are collected by the water collector to reduce the loss of spray water. When the spray water decreases to a certain amount, the float valve automatically replenishes water, and this cycle continues.