The closed cooling tower is a kind of evaporative cooler, which is a kind of equipment that absorbs the heat of the cooling fluid in the coil after partially evaporating the spray water outside the coil. The closed cooling tower uses a two-stage cooling method, that is: the primary cooling adopts air cooling, which relies on the wind to cool the cooler coil; the secondary cooling adopts air cooling and spraying, and when the ambient temperature is relatively high, the secondary cooling is used. At the same time of air cooling, the spray system sprays water on the surface of the cooler, which can take away the heat of the coil when the water evaporates, so as to achieve the cooling effect.

The closed cooling tower equipment adopts high-quality metal structural materials, and the corrosion resistance and service life of the equipment are prolonged. Low maintenance and low cost. Widely used in petroleum, new energy, steel, foundry, automobile, chemical industry, printing, medicine, electric power and other industrial cooling and food processing, refrigeration, building air conditioning cooling and other civil fields.

The adopted frequency conversion technology enables the cooling system to adjust the air volume and spray volume according to the change of the ambient temperature, control the start and stop of the fan and the spray system, and realize the energy saving of the cooling process. Through the fully closed cycle, the circulating cooling water is protected from pollution and can be used continuously. The closed cooling tower protects the atmospheric environment due to the low evaporation of spray water.