Cold storage hoarfrost-free type refrigeration system

Abstract

The invention discloses a frost-free refrigerating system for a cold storage warehouse, which can remove frost in time in the use process to save energy, ensure uniform temperature field in the warehouse and achieve convenient use. The frost-free refrigerating system comprises an evaporator consisting of a plurality of groups of fin heat exchangers arranged at intervals and connected with each other in parallel, a water receiving tray arranged below each group of the fin heat exchangers, a telescopic water baffle connected with the water receiving tray and capable of wrapping the lower part of the fin heat exchanger when unfolded, a telescopic drive mechanism connected with the telescopic water baffle, a refrigerating system controller connected with the telescopic drive mechanism, and a water outlet on the lower end of the water receiving tray. The plurality of groups of fin heat exchangers can be operated flexibly by dividing into the plurality of groups, thus ensuring uniform temperature field in the warehouse. The refrigerating system is very convenient in processing the thawed frost water, and has the advantages of simple and convenient defrost operation, timely defrosting, improved refrigeration efficiency and energy saving.

Description

technical field [0001] The invention relates to a refrigeration system, more specifically, to a frost-free refrigeration system suitable for cold storage. Background technique [0002] The evaporator in the food cold storage refrigeration system generally adopts an integrated top-row or wall-tube heat exchanger, and the surface is prone to frost during use. After the surface of the evaporator is frosted, ① due to the low thermal conductivity of the frost layer, the formation The thermal resistance is reduced, resulting in a decrease in the heat transfer; ②As the frost layer blocks the gap between the fins, the air resistance through the fins of the cooler increases. Therefore, the existence of the frost layer will deteriorate the heat transfer and reduce the cooling efficiency, so it is very important to defrost in time. [0003] For traditional cold storage evaporators, there are many defects in defrosting. First of all, in terms of food safety, when traditional cold stor...

AI Technical Summary

Problems solved by technology

Manual defrosting is cumbersome. Manual defrosting, cleaning of frost water, and moving of items in the warehouse are required. Usually, it takes a long time or even several months for users to defrost once. When defrosting, the frost layer is already very thick. The thermal resistance has made the evaporator far from achieving the cooling effect, and frequent defrosting may also cause large fluctuations in the temperature field in the storage, which has a great impact on the quality of the items, especially the items in open packaging

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