A heat exchange device for shoe machine refrigeration equipment

Abstract

The invention discloses a heat exchange device for shoe machine refrigeration equipment in the technical field of freezing and shaping machines, comprising a freezing chamber of the freezing and shaping machine and an evaporating assembly installed on the top wall of the cavity of the freezing chamber. And the second evaporation assembly, the first evaporation assembly includes a shell and a heat exchange member, the second evaporation assembly includes a heat conduction plate and a heat conduction fin, and the capillary tube does not directly exchange heat with the air in the freezer, so as to avoid frosting on the outer wall of the capillary tube , to achieve the purpose of protecting the capillary tube, and it is convenient to defrost the removed evaporation component 2. During the defrosting period, it does not affect the use of the freezer, which ensures the efficiency of freezing and shaping of shoes and boots, and facilitates drying of the cooling air. Reduce the humidity of the cooling air, thereby reducing the degree of frost on shoes and boots.

Description

technical field [0001] The invention relates to the technical field of refrigerating and shaping machines, in particular to a heat exchange device of a shoe machine refrigerating equipment. Background technique [0002] Frozen setting machine is a common setting equipment for shoemaking in shoe factories. Before the shoe last is taken out from shoes and boots, it is necessary to set shoes and boots by freezing setting first, so as to stabilize and polymerize the water-based adhesive of shoes to ensure a perfect fit. , and keep the shoe in better shape after taking off the last. [0003] At present, the refrigeration and setting machines on the market all use hermetic refrigeration, that is, the refrigeration system is installed inside the equipment, and the compressor is used to inhale the low-pressure working fluid vapor from the evaporator, and compress it into a high-temperature and high-pressure state and transport it to the condenser. , the refrigerant liquid at normal...

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Problems solved by technology

[0008] The object of the present invention is to provide a heat exchange device for shoe machine refrigeration equipment to solve the problem that when the temperature in the freezer compartment proposed in the above background technology reaches below 0°C, the capillary tube of the evaporator is placed outside the tube for heat exchange. The air will condense on the outer wall of the capillary to form frost, and part of the frost residue will easily fall on the shoes and boots with the flow of cold wind, which will increase the time-consuming defrosting process of the shoes and boots; the outer wall of the capillary of the evaporator will be covered with frost. When defrosting the capillary, the frost layer on the outer wall of the capillary will accumulate thicker and thicker, that is, the weight of the frost layer will become heavier and heavier, which will easily cause pressure loss to the capillary. Although some models on the market are equipped with a defrosting system inside, but , turning on the defrosting system not only consumes power, but also needs to suspend the freezing and setting operation, and then restart the freezing and setting operation after the defrosting of the outer wall of the capillary is completed, so that the problem of freezing and setting efficiency of shoes and boots is reduced

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