Refrigerating and freezing device and preservation control method thereof
The technology of a refrigeration and freezing device and a control method is applied in the field of storage, which can solve the problems of large energy consumption of refrigerators, high sealing performance requirements of refrigerators, and high realization requirements, so as to prevent anaerobic respiration, improve use convenience and experience, Highly intelligent effect
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[0032] The refrigerating and freezing device of the embodiment of the present invention adopts a modified atmosphere film to form a gas atmosphere that meets the storage requirements of items in the fresh-keeping subspace, for example, adopts an oxygen-enriched film to form an oxygen-rich and nitrogen-poor gas atmosphere. The working principle of the oxygen-enriched membrane is to use the different permeation rates of the various components in the air when passing through the oxygen-enriched membrane. Driven by the pressure difference, the oxygen in the air is preferentially passed through the oxygen-enriched membrane. In the prior art, the oxygen-enriched membrane It is generally used to prepare oxygen, so that it can be used in medical treatment, fermentation, combustion and other fields.
[0033] In the embodiment of the present invention, the refrigerating and freezing device utilizes the air-modulated membrane to discharge oxygen, so that the oxygen concentration in the fr...
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