Liquid-nitrogen-based intelligent refrigerant and air proportioning system and method

Abstract

The invention discloses a liquid-nitrogen-based intelligent refrigerant and air proportioning system and a liquid-nitrogen-based intelligent refrigerant and air proportioning method. The liquid-nitrogen-based intelligent refrigerant and air proportioning method mainly comprises the steps of: inputting a target temperature of a target environment and target concentrations of oxygen and carbon dioxide; spraying liquid nitrogen and delivery air to the target environment according to the target concentration of oxygen and a target concentration of nitrogen; acquiring a temperature of the target environment in real time, and judging whether the temperature of the target environment is less than or equal to the target temperature according to real-time temperature data of the target environment;if so, executing a next step, otherwise, spraying liquid nitrogen and delivering air to the target environment according to the target concentration of oxygen continuously; and monitoring and adjusting the temperature, oxygen concentration and carbon dioxide concentration of the target temperature in real time. Through utilizing the feature that liquid nitrogen is capable of refrigeration, the liquid-nitrogen-based intelligent refrigerant and air proportioning system can realize refrigeration while reducing the oxygen concentration in the target temperature, saves a large amount of electricity, and is convenient to use. The liquid-nitrogen-based intelligent refrigerant and air proportioning system and the liquid-nitrogen-based intelligent refrigerant and air proportioning method can be widely applied to the technical field of refrigeration.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to an intelligent refrigerant air proportioning system and method based on liquid nitrogen. Background technique [0002] Gas-regulated storage is the most advanced fresh-keeping storage technology for vegetables and fruits today. It adds a gas composition regulating device on the basis of cold storage. By controlling the temperature, oxygen concentration, carbon dioxide concentration and other gas conditions in the storage environment, the respiration of fruits and vegetables is inhibited, the metabolic process is delayed, the freshness and commerciality of fruits and vegetables are better maintained, and the storage period and preservation period of fruits and vegetables are extended. Vegetables and fruits kept fresh by gas-regulated storage technology can extend the fresh-keeping period by 21-28 days on the basis of the original refrigeration technology, which is 4-5 times ...

AI Technical Summary

Problems solved by technology

[0004] However, the current gas conditioning storage technology usually uses an ordinary air conditioning system with a nitrogen generator to adjust the temperature and gas concentration of the environment. Such a system consumes a lot of electric energy.

[0005] At the same time, the traditional gas conditioning storage technology still needs manual configuration for the control of ambient gas, which is not smart enough and convenient.

Images