Finned tube evaporator for air-cooled refrigerator and air-cooled refrigerator

Abstract

The invention relates to a finned tube evaporator for an air-cooled refrigerator and an air-cooled refrigerator. The evaporator is arranged in an evaporator cavity of the air-cooled refrigerator and comprises a plurality of layers of finned tubes, each finned tube is composed of an evaporator tube and a plurality of fins; along the vertical direction, the number of the evaporator tubes on each layer of finned tubes is unequal. According to the finned tube evaporator, the number of the tubes gradually increases from the bottom to the top, the number of the windward pipes of the evaporator is increased, the problem that a large amount of frost is accumulated at the bottom of the evaporator can be effectively relieved, the heat generated by the electric heater in the defrosting process can rapidly reach the top of the evaporator, so that the defrosting synchronism is improved, and the defrosting energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a finned tube evaporator for an air-cooled refrigerator and an air-cooled refrigerator. technical background [0002] figure 1 The structure schematic diagram of a typical air-cooled refrigerator is shown. The return air from the evaporator from each compartment of the refrigerator flows into the evaporator from the bottom of the evaporator, and after being cooled by the evaporator, it is sent to each compartment to achieve all the air in the compartment. The purpose of storing goods to cool down. During the cooling process, the moisture in the humid air will condense into frost on the surface of the evaporator. At present, in widely used air-cooled refrigerator evaporators, the pipelines are evenly arranged along the vertical direction. Generally, there are only two finned tubes on the windward side of the evaporator. Since the windward side at the bottom of the evapora...

AI Technical Summary

Problems solved by technology

Therefore, during the defrosting process, the frost at the bottom of the evaporator will block the passage of hot air rising. In addition, when the hot air rises from the bottom of the evaporator to the top, the heat loss is relatively large, so the top defrosting is more difficult, and the defrosting process is seriously out of sync. , thereby reducing the defrosting efficiency and increasing the energy consumption of the refrigerator during the defrosting process

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