Ultralow-temperature refrigerating box and refrigerating method

Abstract

The invention discloses an ultralow-temperature refrigerating box and a refrigerating method. The ultralow-temperature refrigerating box comprises a box body and a mixed working medium refrigerating system, the box body is provided with a box cover, the inner wall of the box body is sequentially provided with a heat preservation layer, a heat insulation plate, an evaporator copper pipe and an inner plate, the box body is provided with a gas connector, and the gas connector is provided with a valve. The ultralow-temperature refrigerating box is small in size, low in energy consumption and little in heat leakage.

Description

technical field [0001] The invention belongs to the technical field of high and low temperature rapid control, and in particular relates to an ultra-low temperature refrigerator and a refrigeration method. Background technique [0002] In modern life, food refrigeration solves the problem of food rot and deterioration caused by the separation of food production and use in time and space, and greatly improves the living standard. For meat products, the refrigeration speed and refrigeration temperature are closely related to the nutritional value, economic value and taste of the food. The freezing temperature of general meat products, including seafood, is -18 degrees. In order to ensure maximum nutrition retention, after slaughtering animals and capturing seafood, they should be processed as quickly as possible, quickly cooled and frozen, and kept at low temperature for freezing. Once the temperature rises in the whole process from slaughter, capture to the dining table, th...

AI Technical Summary

Problems solved by technology

An alternative is to directly use the -60°C ultra-low temperature container as a refrigerated vehicle, but the container is bulky, the transportation is not flexible enough, and the cost of use is relatively high, which is not an economical way

Although the number of ultra-low temperature cold storage is relatively small, the technology is generally relatively mature. In comparison, the technology of ultra-low temperature refrigerated trucks and refrigerators is even less mature.

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