Fresh keeping device for separating oxygen and fresh keeping method thereof

Abstract

The invention relates to a fresh keeping device for separating oxygen and a fresh keeping method thereof. The fresh keeping device comprises a container and an isolation layer arranged in the container, wherein an internal space enclosed by the isolation layer and the side wall of the container forms a storage chamber, the side wall of the container is provided with an outer air inlet and an outerair outlet, the side wall of the storage chamber is provided with an inner air inlet and an inner air outlet, the outer air inlet and the inner air inlet are communicated through an air inlet channel, the outer air outlet and the inner air outlet are communicated through an air outlet channel, the container is internally provided with at least one air separation device and an air extraction device, the air separation device is in communication with the air inlet channel, and the air extraction device is in communication with the air inlet channel or the air outlet channel. The fresh keeping device not only can filter the oxygen in the storage chamber, realize the complete replacement of the internal air, remove the harmful gas produced by the storage, and realize the internal and externalpressure balance, but also has no special requirements on the strength of the outer wall of the container, will not damage the packaging of the storage, has no deflation, voltage boosting and reduction, and other operations, and is easy to access.

Description

technical field [0001] The invention relates to a fresh-keeping container, in particular to a fresh-keeping device for separating oxygen and a fresh-keeping method thereof. Background technique [0002] Keeping food and articles fresh and preventing food spoilage are problems that are often faced in daily life. People often use the cold room of the refrigerator to keep food and articles fresh. This is because the oxidation reaction and microbial reproduction are slowed down under low temperature conditions, which can prolong the fresh-keeping time. However, even under low temperature conditions, the metabolism of cells is still going on, and although the speed is slowed down, the preservation time is still limited. In order to further prolong the fresh-keeping time, there is a proposal to create a low-vacuum environment inside the refrigerator, that is, to form a quasi-vacuum (ultra-low oxygen) environment by rapidly discharging the air inside the container, and to suppress...

AI Technical Summary

Problems solved by technology

[0005] 1. It is necessary to deflate before opening the container to restore the balance of internal and external air pressure, which is inconvenient to access;

[0006] 2. The low-pressure environment may affect the shape of the storage or packaging in the container, and the sealed items may bulge, overflow, or break the packaging;

[0008] 4. The negative pressure state can only reduce the oxygen content to a certain extent, but cannot completely filter out the oxygen;

[0009] 5. The power of the vacuum pump is relatively large, and the container needs to be vacuumized again after switching on and off, resulting in high energy consumption, and the background noise caused by frequent start-up is significant

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