The working principle of the device is to use the air pump in the analyzer will be needed to analyze the gas in the reservoir out, through the oxygen sensor, carbon dioxide sensor, temperature sensor, humidity sensor, ethylene sensor, ozone sensor in the analyzer, the detected value will be displayed on the screen. If it is detected that the content of carbon dioxide gas in a certain warehouse is higher than the parameter set by the user, the automatic distribution station will first issue an instruction to open the butterfly valve in the corresponding warehouse, and then the carbon dioxide remover will issue an instruction to instruct the equipment to work automatically to automatically maintain the carbon dioxide gas value set by the user. After the work is completed, the equipment automatically stops working, and then the butterfly valve automatically closes; If it is detected that the oxygen content in a certain warehouse is lower than the parameter set by the user, the analyzer will give instructions to the oxygen supplement valve on the carbon dioxide remover to open it, so that the carbon dioxide remover will automatically replenish oxygen when working to automatically maintain the parameter set by the user. The equipment is fully automatic inspection, inspection time interval can be set according to user storage requirements.