Ultra-long-term freshness preserving system
A fresh-keeping box and vacuum pump technology, applied in food preservation, food science, application and other directions, can solve problems such as water loss, yellowing, decay, etc., and achieve the effect of improving storage time and improving practicability.
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[0019] The present invention will be further described below in conjunction with the embodiments shown in the drawings.
[0020] See figure 1 The refrigerator body 1 according to an embodiment of the present invention includes three parts: a refrigerating compartment 2, a freezing compartment, and a temperature changing room. Among them, the refrigerator compartment 2 has a specific preservation system, which is composed of a preservation box 3, an oxygen-enriched membrane 4, a vacuum pump 5, a first air pipe 6, a pressure sensor 7, a control board 8, and a second air pipe 11. The fresh-keeping box 3 is fixed in the freezer compartment of the refrigerator. The fresh-keeping box 3 has an oxygen-enriched film 4 built in. In principle, the oxygen-enriched film is fixed on the inner wall of the fresh-keeping box, except for the door. can. The oxygen-enriched membrane 4 is connected to the suction port of the vacuum pump 4 fixed on the outside of the fresh-keeping box 3 through the f...
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