Evaporator is an important heat exc

Evaporator is an important heat exchange equipment in household air conditioning, the refrigerant liquid in the evaporator absorbs the heat of the cooled material at the low temperature of the heating chamber, boiling into steam, the evaporation chamber makes the vapor produced in the two-phase complete separation of the gas mixture from the heating chamber with a large amount of foam, to the larger evaporation chamber, These liquids by their own condensation or defoamer and other role to steam separation, evaporator in the domestic air conditioning refrigeration system is not only cold equipment, but also the output of cold equipment, in the entire system is significant, therefore, the design of the evaporator is reasonable, directly related to the cooling effect of the entire air-conditioning and operating energy consumption. There are many types of evaporators, according to the characteristics of the cooling medium, the evaporator can be divided into two categories, respectively, the coolant evaporator and the evaporator of the cooling air. Evaporators and condensers have experienced three generations of development, from the beginning of the tube-chip to later tube belt," and then the fin-type, so far, fin-type evaporator heat change density has almost reached its peak, in a short period of time should not have a great development. But with the severe global energy shortage, the requirement of the operating cost of the evaporator is getting more and more attention. New heat exchangers such as plate evaporators are being developed, and research on new high-efficiency heat exchangers is also deepening.