Cold chain transportation device with differential pressure pre-cooling function

Abstract

The invention provides a cold chain transportation device with a differential pressure pre-cooling function. The cold chain transportation device comprises a box body and a refrigeration system; the box body comprises a top plate, a bottom plate, side plates and a partition plate, the side plates are located between the top plate and the bottom plate, and the side plates are configured to be air return walls and are provided with air guiding ports; the partition plate is located below the top plate and is spaced apart from the top plate to form a top air duct, and the top air duct is internally provided with a forced draught blower and an air return fan, wherein an air inlet of the forced draught blower communicates with an air outlet of the refrigeration system through a cold air pipe penetrating through the top air duct, and an air outlet of the forced draught blower communicates with the interior of the box body; an air inlet of the air return fan communicates with the interior of the box body through the air guide ports, and an air outlet of the air return fan communicates with an air inlet of the refrigeration system through the top air duct; and the bottom of the box body isprovided with a ripening agent conveying air passage which is provided with a ripening agent venting hole. The in-box air circulation mode of the cold chain transportation device realizes uniform pre-cooling, the in-box storage space for fruits and vegetables is saved, and the fruits and vegetables can be can ripened.

Description

technical field [0001] The invention belongs to the technical field of cold storage of fruit and vegetable logistics, and in particular relates to a cold chain transportation device with a pressure difference pre-cooling function. Background technique [0002] When fruits and vegetables are picked from the field, there is a lot of field heat, and respiration will also release a lot of respiratory heat. In order to reduce the damage rate of fruits and vegetables, improve transportation efficiency, shorten the market cycle of fruits and vegetables, and improve the freshness of fruit and vegetable products, Pre-cooling fruits and vegetables is an essential process. [0003] Existing pre-cooling equipment is equipped with a cooling fan connected with the refrigeration equipment on the inside of the insulation box. The differential pressure pre-cooling method of the mobile container-type differential pressure pre-cooling equipment is as follows: the cold air of the refrigeration...

AI Technical Summary

Problems solved by technology

However, the goods need to be placed in a specific way, and the space utilization rate is not high; when there are many goods placed or placed in a wrong position, the ventilation path will be blocked, and the pre-cooling effect will not be good.

[0005] However, the sealing performance of each module connection of the modular pre-cooling equipment is not good, which greatly reduces the effect of pre-cooling and heat preservation, and consumes a lot of energy

[0006] Moreover, the existing differential pressure precooling device also has the problem of not being able to simultaneously realize the functions of precooling and ripening

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