Oxygen-enriched membrane assembly and refrigerating and freezing device

Abstract

The invention provides an oxygen-enriched membrane assembly and a refrigerating and freezing device. The oxygen-enriched membrane assembly comprises a supporting frame and two oxygen-enriched membrane layers. The supporting frame is provided with a first surface and a second surface parallel to each other, and a plurality of airflow channels are formed on the supporting frame, and the multiple airflow channels extend on the first surface and the second surface correspondingly, penetrate through the supporting frame so as to make the first surface communicate with the second surface and jointly form an oxygen-enriched gas collection cavity; the two oxygen-enriched membrane layers are laid on the first surface and the second surface of the supporting frame correspondingly, each oxygen-enriched membrane layer is configured in a manner that more oxygen in airflow of the space surrounding the oxygen-enriched membrane assembly can penetrate through the oxygen-enriched membrane layers to enter the oxygen-enriched gas collection cavity compared with nitrogen gas in the airflow. The first surface and the second surface of the supporting frame are provided with oxygen-enriched membranes, the supporting frame is internally provided with the airflow channels communicating with the first surface and the second surface, and thus the flat-plate-type oxygen-enriched membrane assembly with the oxygen-enriched gas collection cavity provided with the multiple channels is provided.

Description

technical field [0001] The invention relates to the technical field of gas separation, in particular to an oxygen-enriched membrane module and a refrigerating and freezing device having the same. Background technique [0002] A refrigerator is a refrigeration device that maintains a constant low temperature, and it is also a civilian product that keeps food or other items in a constant low temperature and cold state. With the improvement of the quality of life, consumers have higher and higher requirements for the preservation of stored food, especially for the color and taste of food. Therefore, the stored food should also ensure that the color, taste, and freshness of the food remain unchanged as much as possible during the storage period. [0003] In the fresh-keeping technology of the refrigerator, oxygen is closely related to the oxidation and respiration of the food in the refrigerator. The slower the respiration of the food, the lower the oxidation of the food and t...

AI Technical Summary

Problems solved by technology

But until now, due to the large size and high cost of nitrogen-generating equipment traditionally used for controlled atmosphere preservation, this technology has basically been limited to use in various large-scale professional storages (storage capacity is generally at least 30 tons or more).

It can be said that what kind of appropriate gas adjustment technology and corresponding devices can be used to economically miniaturize and quiet the air conditioning system, making it suitable for families or individual users, is a problem that technicians in the field of air conditioning and fresh-keeping have been eager to solve but have never been able to solve. Technical problems that can be successfully solved

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