1. Introduction to the cold storage project installation manufacturer. Generally speaking, when the resistance of the frost layer on the surface of the evaporator to the air is not significant, the flow of the air through the evaporator has not been reduced before, the effect of the frost layer is not serious, and it is not necessary to melt the frost. When the flow of air is significantly reduced, it should be defrost. The greater the humidity of the air, the greater the difference between the evaporator temperature and the temperature of the freezer, the easier it is to frost on the evaporator. Combined with the fresh-keeping process, packaging refrigeration can reduce the dry consumption of fruits and vegetables and reduce the number of defrosts of the evaporator. In fact, it also played a role in the energy saving of the freezer.
2. The moisture-proof and vapor-proof of the freezer enclosure structure is also necessary to prevent moisture and steam from the freezer enclosure structure, otherwise the insulation performance of the insulation material will be deteriorated. This is also the reason why the insulation performance of the freezer library body is good when it is first used, but the insulation effect is deteriorated after a period of time. Since the water vapor permeates from the high temperature side to the low temperature side, the moisture-proof vapor barrier layer should be provided on the side where the temperature of the heat insulating layer is high.
