Counter-current closed-loop cooling tower, named due to the opposite direction of cold and hot media, with spray water flowing from top to bottom and air passing from bottom to top at high speed. It is mainly composed of heat exchange coils, spray water system, exhaust system, and framework shell. Its features are as follows:

1. Low system resistance due to full heat exchange tubes in the cross-section, resulting in a larger flow-through area and reduced resistance. This helps to minimize pressure loss in the system and lower the circulating pump head.

       2. Simple structure, minimal maintenance, operation-wise featuring a ventilation system, water system, and electrical control system. The water system is divided into an internal circulation system and a sprinkler system, with the differences being limited to these aspects.

         3. Non-scaling – This is not only a feature of the counterflow closed-loop cooling tower but also a major advantage of closed-loop cooling towers. Due to the complete enclosed recirculation of the circulating fluid, cooling occurs without evaporation, eliminating scaling possibilities. This ensures the purity, singularity, and stability of the circulating medium. Not only can it cool circulating water and refrigerants, but it can also cool any flowing medium.

4. Operation is stable due to the cooling effect of the counterflow closed-loop cooling tower, which is directly related to air volume and spray water. These are selected during design and manufacturing and do not change. Additionally, factors affecting operation include the internal fluid temperature and the ambient wet bulb temperature. Fluid temperature is directly influenced by the production process, and as long as production is normal, it remains relatively stable. Wet bulb temperature is a atmospheric condition of the operating environment and does not vary as much as dry bulb temperature. Therefore, the operation of closed-loop cooling towers is stable and reliable.

         5. Save land costs with a counter-current closed-loop cooling tower, as opposed to an open-loop tower. No need for large water pools, significantly reducing land expenses. This facilitates the overall layout of the factory and also minimizes pool construction costs and prevents leakage possibilities.

               6. Strategically designed, counterflow closed-circuit cooling towers can be placed beside the factory, along road edges, or even installed on rooftops without occupying any land.