Fin evaporator and electric refrigerator adopting fin evaporator

A technology of finned evaporators and evaporators, applied in evaporators/condensers, refrigeration components, refrigerators, etc. Poor thermal efficiency and other problems, to avoid the reduction of cooling capacity, insufficient heat transfer, and avoid uneven frosting
CN104101136AInactive Publication Date: 2014-10-15孙卫华
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
孙卫华
Publication Date
2014-10-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of an electric refrigerator in household appliances, in particular to a fin evaporator, which comprises a fixing plate, two lines or a plurality of lines of evaporation pipes and a plurality of fins, wherein the evaporation pipes are arranged on the fixing plate, the fins are sheathed on the evaporation pipes, and the evaporation pipes enter the evaporator from the top layer, spirally go downwards in a snake shape at each layer, and are sent out of the evaporator at the bottom layer. The air supply direction is upward from the bottom, the flowing direction of refrigerants in a pipeline is generally opposite to the air supply direction, through adopting the convection mode, the heat exchange is enhanced, and the cooling capacity transfer efficiency is improved. The refrigerant pipeline direction is integrally downward from the top, and the distance between an inlet section and an outlet section of each evaporation pipe reaches the maximum value. The temperature differences of the inlet section and the outlet section of each evaporation pipe are great, the heat exchange of the traditional evaporator through the fins since the inlet section and the outlet section of the evaporation pipe are adjacent is avoided, i.e., the cooling capacity grade reduction is avoided, and the cooling capacity utilization rate is improved. The frosting non-uniformity of the fins on the air supply cross section of the traditional evaporator, and the air supply non-uniformity and the heat exchange efficiency reduction due to the frosting non-uniformity are avoided.
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Description

technical field

[0001] The invention relates to a refrigeration system, which is suitable for evaporators in commercial refrigerators and refrigerators, especially finned evaporators. Background technique

[0002] A refrigerator refrigeration system generally includes a compressor, an evaporator, a capillary tube, a condenser, and a refrigerant. The refrigerant is compressed by the compressor to become a high-temperature and high-pressure gas, and releases heat in the condenser to become a high-pressure liquid. It enters the evaporator through the capillary tube to vaporize and absorb heat, and the vaporized and overheated refrigerant returns to the compressor. The evaporator is a heat exchange device, and the refrigerant evaporates in the evaporator to increase the temperature and transfer the cold energy to the refrigerator compartment.

[0003] At present, finned evaporators are used in air-cooled refrigerators. The inlet section of the refrigerant evaporator coil is dir...

Claims

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