Refrigerating chamber freshness retaining, deoxidizing and nitrogen supplying system

The utility model relates to the technical field of refrigerating chamber freshness retaining, and discloses a refrigerating chamber freshness retaining, oxygen removing and nitrogen supplying systemwhich comprises a refrigerating chamber, an air inlet is formed in one end of the refrigerating chamber, an air outlet is formed in the other end of the refrigerating chamber, and a dehydrator, an aircompressor, a cooler, a nitrogen making film set and an electromagnetic valve are sequentially connected between the air inlet and the air outlet in series through pipelines. A nitrogen sensor is further arranged in the refrigerating chamber, the electromagnetic valve is connected with the nitrogen sensor through a controller, and the air compressor and the cooler are both connected with the controller. The fresh-keeping device has the beneficial effects that the fresh-keeping time of the refrigerating chamber on fresh food can be prolonged, the breeding of bacteria in the refrigerating chamber is reduced, and the fre