Portable sample quick-freezing cold closet

Abstract

The invention provides a portable sample quick-freezing cold closet. The quick-freezing cold closet comprises a box body and an anti-freezing hose, wherein the box body comprises an outer box body andan inner box body, and the inner box body is arranged in the outer box body; the outer box body is characterized in that the outer box body is further provided with a liquid nitrogen device, and theliquid nitrogen device is arranged beside the inner box body; heat preservation layers and waterproof layers are arranged on box walls of the inner box body, wherein the waterproof layers each are symmetrically arranged on the two sides of the heat preservation layers each; an inner box cover is sequentially provided with a metal layer, one of the heat preservation layers, one of the waterproof layers and a first hollow interlayer, a second hollow interlayer is further arranged on the bottom surface of the box body, and the liquid nitrogen device communicates with the first hollow interlayer and the second hollow interlayer through the anti-freezing hose; and the first hollow interlayer is connected with an air injection device. The portable sample quick-freezing cold closet has the advantages of being good in buffering performance, safe and stable, convenient to carry, suitable for rapid freezing storage of a sample in an outdoor sampling process, and guarantees the freshness of the sample.

Description

technical field [0001] The invention relates to auxiliary equipment for food testing, sampling and storage devices, in particular to a portable sample quick-freezing refrigerator. Background technique [0002] "Food is paramount to the people". Diet is the main way for the human body to absorb nutrients and energy from the external environment, and it is the basis and expression of life activities; It is not only related to the quality and rise and fall of a nation, but also directly affects the reputation of a country in international trade exchanges. There are 23 provinces in my country, 14 of which are along the coast. The coastline of the eastern and southern continents is more than 18,000 kilometers long, and the water area of ​​the inland sea and marginal sea is about 4.7 million square kilometers. Growing, the safety of aquatic food should also be paid attention to. [0003] Pollution of the growing waters of aquatic products or the illegal use of additives prohibite...

AI Technical Summary

Problems solved by technology

In the prior art, liquid nitrogen tanks are divided into liquid nitrogen storage tanks and liquid nitrogen transport tanks. Storage tanks are mainly used for static storage of indoor liquid nitrogen, and are not suitable for long-distance transportation under working conditions; The conditions of transportation have made a special shockproof design, but it is bulky and heavy, and it is inconvenient to carry

Images