Vacuum refrigerating device

Abstract

The invention provides a vacuum refrigerating device. The vacuum refrigerating device comprises a vacuum system, a closed container and a connecting pipeline. The vacuum system comprises a rack and a vacuum pump which is installed on the rack and is capable of pumping steam. The vacuum pump is communicated with the closed container through the connecting pipeline. The vacuum refrigerating device has the beneficial effects that the structure is simple, and the device is flexible and convenient to use; freshness keeping cost of fresh agricultural products is low, energy saving and environment friendliness are achieved, and Freon is avoided; after being picked, the fresh agricultural products can be rapidly cooled and encased, the respiratory action of the fresh agricultural products is restrained, the storage life of the fresh agricultural products is prolonged, and the quality of the fresh agricultural products is guaranteed; and by means of the device, a cold chain system can be easily established, a huge refrigeration house does not need to be established, and investment of fixed assets is reduced.

Description

technical field [0001] The invention relates to a refrigeration device, in particular to a vacuum refrigeration device, and belongs to the technical field of fresh-keeping cold chain equipment. Background technique [0002] Cold chain (coldchain) means that after perishable food is purchased or caught from the place of origin, in product processing, storage, transportation, distribution and retail, until the hands of consumers, all links are always in the low temperature environment required by the product to ensure food quality. A special supply chain system for quality assurance, loss reduction, and pollution prevention. With the continuous improvement of people's living standards, people's requirements for product quality and nutritional value continue to increase, and the application of cold chain systems is becoming more and more extensive, including primary agricultural products: vegetables, fruits; meat, poultry, eggs; water products; flower products; processed food:...

AI Technical Summary

Problems solved by technology

[0004] At present, the preservation and preservation of fresh agricultural products are stored at room temperature, or directly stored in cold storage after picking. The temperature is gradually and slowly lowered, but the internal temperature of fresh agricultural products does not drop rapidly, and its respiration is still in progress without being effectively inhibited, and there are still perishable problems, while storage at room temperature reduces the freshness and storage time of fresh agricultural products. The sharp drop, the loss of agricultural products is relatively large, the cost of cold storage is increased, and the cooling time is more than 10 hours, and the cold storage requires basic investment, high maintenance costs, large investment in fixed assets, and there are still hidden safety hazards and environmental problems. The cold chain industry is constantly exploring, looking for a more environmentally friendly, safe and effective fresh-keeping technology

Images