Evaporative condenser is a type of cooling equipment utilizing the water evaporation and forced air circulation, to absorb the heat and cool gaseous state high-temperature and high-pressure vapor to liquid form with the help of condenser. Evaporative condenser could be found in various fields, such as petrochemical, light industry, medical, food refrigeration and other fields. It is quite suitable for medium- or large-size refrigeration equipment. Meanwhile, in Yantai Moon, there are two types of refrigeration equipment, including ZNX series evaporative condenser and ZNXB series evaporative condenser. ZNX series evaporative condenser is better used in some high-temperature area, and ZNXB series evaporative condenser is mainly used in some low-temperature area, such as the Northern China, where there is a cold winter.