Heat exchange fin, heat exchanger with heat exchange fins and dehumidifier

Abstract

The invention relates to the technical field of dehumidifiers, in particular to a heat exchange fin, a heat exchanger with heat exchange fins and a dehumidifier. The thickness of a water film on the surface of the heat exchange fin can be reduced, and therefore the thickness of a frost layer on the surface of the heat exchange fin is reduced, and the defrosting efficiency and the dehumidification effect are improved. The heat exchange fin provided in the embodiment of the invention is made of super-hydrophilic aluminum foil. The super-hydrophilic aluminum foil comprises an aluminum foil body and a hydrophilic layer coating the surface of the aluminum foil body. The hydrophilic layer comprises a cross-linking and solidifying product of modified acrylic resin. The cross-linking and solidifying product of the modified acrylic resin is obtained through cross-linking and solidifying of the modified acrylic resin containing a hydrophilic functional group and a solidifying agent. The mass fraction of a dispersion medium in the hydrophilic layer is smaller than or equal to 1%. The heat exchange fin, the heat exchanger and the dehumidifier are applied to producing and manufacturing of super-hydrophilic heat exchange fins.

Description

technical field [0001] The invention relates to the technical field of dehumidifiers, in particular to a heat exchanging fin, a heat exchanger containing the heat exchanging fin and a dehumidifier. Background technique [0002] Currently, see figure 1 , dehumidifiers sold on the market usually include: compressor 1, condenser 2, evaporator 3, throttling device 4, fan 5, water tank 6, water tray 7, filter 8, etc., wherein the compressor 1 It communicates with the condenser 2, the condenser 2 communicates with the evaporator 3 through the throttling device 4, and the evaporator 3 communicates with the compressor 1 to form a refrigerant circulation loop. When the compression dehumidifier is working, the refrigerant is compressed into a high-temperature and high-pressure refrigerant vapor in the compressor 1, enters the condenser 2 to condense and release heat, and then becomes a low-temperature and low-pressure refrigerant liquid after throttling and reducing pressure by the t...

AI Technical Summary

Problems solved by technology

[0003] During the dehumidification process, the water vapor in the air will spread on the heat exchange fins of the evaporator 3 after being condensed into liquid droplets when it is cooled. In the prior art, the heat exchange fins of the evaporator 3 are usually made of hydrophilic Made of aluminum foil, the hydrophilic aluminum foil is coated with a layer of hydrophilic layer on the surface of the aluminum foil, the hydrophilic layer contains alkylphenol polyoxyethylene ether, the alkylphenol polyoxyethylene ether is surface active agent, which can improve the surface activity of the aluminum foil and reduce the surface tension between the condensed water and the hydrophilic aluminum foil. When the condensed water spreads on the hydrophilic aluminum foil, the hydrophilic aluminum foil has a certain Hydrophilicity makes it easier for the condensed water to wet the hydrophilic aluminum foil and flow away, thereby preventing the formation of "water bridges", improving the heat exchange efficiency of the heat exchange fins, and improving the dehumidification effect of the dehumidifier , further, when the dehumidifier works in a lower temperature environment, for example: below 10°C, condensed water will condense into a water film on the surface of the hydrophilic aluminum foil, and form when the surface temperature of the evaporator is close to 0°C Frost layer, compared with ordinary aluminum foil, although can reduce the thickness of frost layer, improve the dehumidification capacity of dehumidifier; However, the hydrophilicity of the hydrophilic aluminum foil needs to be further improved, and due to the alkylphenol in the hydrophilic layer Polyoxyethylene ether remains in the hydrophilic layer through physical osmosis, and it is easy to lose as time goes by, making the hydrophilic persistence of the hydrophilic aluminum foil poor

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