Automatic refrigeration storage for fruit and vegetable fresh keeping

Abstract

The invention discloses an automatic refrigeration storage for fruit and vegetable fresh keeping. A civil assembly combined type storage body is adopted, and no cold bridge building envelope is provided. According to a refrigeration device, a refrigeration unit is arranged outside the refrigeration storage, and a multi-element evaporation device and the refrigeration unit are connected in the storage. According to the automatic refrigeration storage, air temperature in the storage and temperature of an evaporator are monitored respectively and controlled in a combined mode, and external heating is not needed for melting and removing a frost layer on the surface timely molten. Compared with an existing cold air circulation refrigeration storage, operation of the refrigeration unit and a cold air fan is monitored in real time through temperature detection, the degree of automation is high, manual routing inspection is not needed, door opening and closing frequency is reduced, over 30% of energy and 90% of manpower are saved compared with a conventional refrigeration storage, and over 9% of energy is saved compared with external heating frost melting.

Description

technical field [0001] The invention relates to the technical field of cold storage equipment, in particular to an automatic control cold storage for keeping fruits and vegetables fresh. Background technique [0002] The fruit and vegetable fresh-keeping warehouse is a kind of fresh-keeping warehouse. It is mainly used to store fruits and vegetables. By adjusting the temperature and humidity in the warehouse, and by inhibiting the respiration of the stored product cells, it delays its metabolic process and makes it in a near-dormant state. It is not in the state of cell death, so that the texture, color, taste, nutrition, etc. of the stored product can be kept basically unchanged for a long time, and then the effect of long-term freshness can be achieved. In recent years, although scholars at home and abroad have done a lot of research work on fruit and vegetable storage and processing technology, and achieved remarkable results, commercialization processing capabilities and...

AI Technical Summary

Problems solved by technology

In recent years, although scholars at home and abroad have done a lot of research work on fruit and vegetable storage and processing technology, and achieved remarkable results, commercialization processing capabilities and technology applications have made great progress, but post-harvest fruit and vegetable commercial processing and storage technology It is still the weakest link in the industrialization chain. The immaturity of insurance cold storage technology has become a crucial factor for the imperfect fresh-keeping process. The current refrigeration equipment for fruit and vegetable cold storage is mostly a combination of air coolers and exhaust pipes. Air convection heat transfer, evaporating equipment is prone to frost, which affects the cooling effect. The refrigeration temperature of the cold storage is not constant, the fluctuation range is large, and the cooling capacity is unevenly distributed. When frosting occurs, the humidity in the storage will drop, which is not conducive to the preservation and storage of fruits and vegetables.

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