A method for ice layer cold storage to maintain constant temperature

Abstract

The invention relates to a method for maintaining the constant temperature through cold accumulation of an ice layer. A containing cavity of a cooling container is filled with cooling liquid, and the cooling container is provided with a refrigeration system. The cooling liquid at least comprises part of water, after the refrigeration system is started, the container wall of the cooling container is used for refrigerating the cooling liquid in the cooling container so as to enable the temperature of the cooling liquid to descend to be near the freezing point, and the peripheral wall of the cooling container starts freezing; the ice layer is gradually formed on the peripheral wall of the cooling container along with refrigeration; when the thickness of the ice layer increases to a certain value, the refrigeration system stops refrigeration; the ice layer is gradually melted, and the temperature of the cooling liquid and the ice layer in the cooling container is kept near the freezing point; when the thickness of the ice layer decreases to a certain value, the refrigeration system is started again; the process is repeated in sequence to keep the temperature of the cooling liquid near the freezing point. By means of the method, the temperature of the cooling liquid can be kept constant for a long time after the refrigeration system stops refrigeration.

Description

technical field [0001] The invention relates to a method for maintaining a constant temperature of a liquid, in particular to a method for maintaining a constant temperature by ice layer cold storage. Background technique [0002] In the catering, retail and entertainment sectors, various forms of devices are used to keep products cool. For cold beverages, these devices form two typical groups - commercial beverage refrigerators and cold beverage vending machines. Both types of units are essentially refrigerators with large glass fronts, with hinged or sliding doors in the case of the first group (for manual dispensing) and dispensing mechanisms in the case of the second group. They pre-chill and store beverages for sale. In many cases, beverages are kept cold for long periods of time before they are finally sold. Then, a considerable amount of energy is used, which may be unnecessary. In order to prevent people from buying without cooling beverages, there are usually a ...

AI Technical Summary

Problems solved by technology

[0007] Use cooling liquid to quickly cool canned beverages when users need it, which can not only cool canned beverages in a short time, but also avoid the waste of electric energy caused by keeping a large number of canned beverages in a cold state for a long time, but using cooling liquid to quickly cool canned beverages When cold, if the temperature of the cooling liquid is not fixed, it is difficult to control the time of rapid cooling of the canned beverage, so the temperature to which the canned beverage is cooled cannot be accurately controlled. Therefore, maintaining a constant temperature of the cooling liquid is very important for the control of the cooling temperature. If the temperature sensor is simply set to detect the coolant temperature to control the start and stop of the refrigeration system, the refrigeration system needs to be started and stopped frequently, which seriously affects the service life of the refrigeration system. noise

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