Whole-course cold chain implementation method

Abstract

The invention discloses a whole-course cold chain implementation method. A device adopted in the implementation process comprises a phase change cold storage heat preservation box, a vacuum rapid pre-cooler, a refrigerating unit, a secondary refrigerant solution box, a secondary refrigerant circulating pump a and a secondary refrigerant circulating pump b. The whole-course cold chain implementation method provided by the invention has the following advantages that 1, a low-temperature secondary refrigerant is not only used for cold charging of a cold storage plate, but also used for providingcooling capacity for a water catcher of the vacuum rapid pre-cooler, and two purposes can be realized by one set of refrigerating system; 2, physical damage to the product during package replacement is avoided, and meanwhile, product temperature rise and cooling capacity loss during package replacement are avoided; 3, the requirements of the whole-course cold chain implementation process on transport vehicles are greatly reduced; and 4, the problem that no low-temperature environment is provided for product quality protection from an agricultural product harvesting site to the position beforeprecooling is solved, the box body and the cold storage plate can be repeatedly used, the refrigeration and cold storage processes are completed in a centralized mode, the refrigeration energy efficiency is higher, and repeated construction of a large number of scattered, small-scale and low-efficiency refrigeration houses is avoided.

Description

technical field [0001] The invention relates to the technical field of the whole cold chain, in particular to a method for implementing the whole cold chain. Background technique [0002] The whole cold chain technology is a necessary guarantee for the safety of perishable food transportation and use, and the largest component of perishable food is fresh agricultural products represented by various vegetables and fruits. Usually, the entire cold chain of fresh agricultural products generally includes field harvesting, rapid pre-cooling, refrigerated storage, refrigerated transportation, refrigerated sales, and end-user refrigerated boxes. If combined with the booming e-commerce sales model, it also includes refrigerated terminal distribution. In this process, field harvesting and rapid pre-cooling are often referred to as the "first mile" of the entire cold chain, and refrigerated sales and refrigerated terminal distribution are also referred to as the "last mile" of the ent...

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Problems solved by technology

[0005] Based on the above reasons, the whole cold chain that is not suitable for the production mode, unreasonable, imperfect, and often "broken chain" has caused a serious decline in the quality of fresh agricultural products and huge losses. At present, the overall spoilage rate of agricultural products in China can be reduced 12 million tons of fruits and 130 million tons of vegetables are wasted every year, while developed countries adopt large-scale and intensive production methods combined with reasonable whole-process cold chain technology, and the average rotten Loss rate less than 5%

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