Ultra-long-term freshness preserving system

Abstract

The invention relates to an ultra-long-term freshness preserving system which can be applied to a refrigerator and installed in a refrigerating chamber of the refrigerator. The system comprises a freshness preserving box, an oxygen enriching membrane, a vacuum pump, a pressure sensor, a control plate and gas delivering pipes, wherein the oxygen enriching membrane is fixed in the freshness preserving box and connected with a gas sucking opening of the vacuum pump by the first gas delivering pipe penetrating through the wall of the freshness preserving box; an exhaust opening of the vacuum pump is led outside a box body for mounting the ultra-long-term freshness preserving system by the second gas delivering pipe; the pressure sensor is fixed to the first gas delivering pipe to sense the pressure in the freshness preserving box, and a signal line is connected with the control plate; and the control plate is connected with and controls the vacuum pump. The invention has ultrastrong freshness preserving function and can effectively improve the storing time of food stored in the refrigerator by being applied to the refrigerator; compared with the refrigeration of a common refrigerator, the invention is expected to be improved by 2-3 times. In addition, the invention can provide high-concentration oxygen for a room, has a plurality of advantages and practical values, and greatly improves the practicability and the healthy performance of the refrigerator.

Description

technical field [0001] The invention belongs to the field of food preservation and relates to a food preservation system. Background technique [0002] Along with the raising of people's living standard, electric refrigerator is very popular. It mainly includes a freezer and a cold room. People mainly use the freezer to store food that needs to be stored for a long time, such as meat and fish, while the cold room is suitable for storing fresh food such as fruits and vegetables. Recently, people's pace of life is accelerating, more and more people go shopping on weekends, the requirements for the shelf life of food are getting higher and higher, and the demand for the fresh-keeping function of refrigerators is becoming stronger and stronger. At present, the refrigerator can keep vegetables fresh for no more than one week, especially leafy vegetables such as parsley and spinach, which are prone to dehydration, wilting, yellowing, and rot when stored in the refrigerator for le...

AI Technical Summary

Problems solved by technology

At present, the refrigerator can keep vegetables fresh for no more than one week, especially leafy vegetables such as parsley and spinach, which are prone to dehydration, wilting, yellowing, and rot when stored in the refrigerator for less than a week.

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