Steam blocking and frosting device for direct cooling freezer

Abstract

The invention provides a vapor stopping and frost gathering device of a direct-cooling cabinet freezer, and belongs to the field of refrigeration equipment. The vapor stopping and frost gathering device comprises a vapor stopping apparatus arranged on a door cover of the cabinet freezer and a frost gathering apparatus arranged inside the cabinet freezer. The vapor stopping apparatus comprises a breathable water stopping film and a door sealing strip, and the door sealing strip and the breathable water stopping film are arranged on the inner side of the door cover of the cabinet freezer from inside to outside and right face a cabinet freezer body. The frost gathering apparatus comprises a vapor leading-in channel and an auxiliary evaporator tube, the vapor leading-in channel is formed inside the cabinet freezer, the two ends of the vapor leading-in channel are located at the upper edge of the cabinet freezer body and right face the upper plane and the inner side face of the door cover respectively, the auxiliary evaporator tube is arranged on the inner side face, and a frost gathering box is arranged on the side, where the auxiliary evaporator tube is located, of an inner container. The vapor stopping and frost gathering device greatly retrains large-area frosting of the wall of the inner container of the direct-cooling cabinet freezer, improves the heat efficiency of an evaporator, prolongs the defrosting cycle and lowers the energy consumption of the cabinet freezer; frost in the frost gathering box is easier to clean away than frost on the wall of the inner container. Besides, the vapor stopping and frost gathering device is simple in structure, it is not needed to change the original cabinet freezer a lot, and therefore the cost increase is small.

Description

technical field [0001] The present invention relates to a technology in the field of refrigeration equipment, in particular to a vapor-blocking and frosting device for a direct-cooling freezer. Background technique [0002] The direct-cooling freezer cools the food in the cabinet by attaching the evaporator to the inner tank wall. The water vapor in the cabinet is easy to form a large amount of frost on the lower temperature inner tank wall surface, and the water vapor that forms frost is mainly caused by the door seal. intrusion. The reason why water vapor continuously invades the freezer is the breathing effect of the door seal, that is, when the compressor is turned on, the air in the freezer is cooled and contracts, causing the pressure inside the freezer to be lower than the pressure outside the freezer, and then the water vapor outside the freezer penetrates through the door seal. ; When the compressor stops, the air in the freezer is heated and expanded by heat leaka...

AI Technical Summary

Problems solved by technology

In this type of technology, the pressure difference between the inside and outside of the door seal still exists, and water vapor will still infiltrate from the door seal, and frost will form on the lower temperature insulation board, and the frost layer will easily freeze the insulation board and the cabinet together , making it difficult to open the partition to take food from the cabinet

[0007] Existing technologies for slowing down the deterioration of the performance of freezers due to frost layer cannot prevent water vapor from infiltrating from the door seal and avoid large areas of frost on the inner wall

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