Low-temperature storage and transportation box device

Abstract

The invention relates to a low-temperature storage and transportation device, in particular to a low-temperature transportation and storage device using liquid nitrogen as a refrigerant. The device comprises a storage and transportation box and a cold supply module, wherein a temperature sensor is arranged in the storage and transportation box, and a liquid nitrogen storage tank, a pressure stabilizing gas storage tank and a pressurizing electromagnetic valve are arranged in the cold supply module, the liquid nitrogen storage tank in the cold supply module is connected with a coil pipe of the storage and transportation box, and the storage and transportation box is connected with the cold supply module through a locking mechanism. Liquid nitrogen is used as a refrigerant, the storage and transportation box and the cold supply module are modularly designed, uninterrupted cold supply is achieved by replacing the cold supply module, the cost is low, the effect is good, temperature control is accurate, and long-distance transportation is facilitated.

Description

technical field [0001] The invention relates to a low-temperature storage and transportation device, in particular to a low-temperature transportation and storage device using liquid nitrogen as a refrigerant. Background technique [0002] The global new crown pneumonia epidemic broke out in 2020. With the joint efforts of Chinese researchers, the development of the new crown vaccine has made rapid progress. However, the newly developed new crown vaccine needs to be stored in an ultra-low temperature environment of -70°C. Some cold chain transportation technologies pose new challenges. [0003] Under the existing technical environment, ordinary cold-chain transport on-board compressors cannot create a transport environment of -70°C, so it is urgent and necessary to develop an ultra-low temperature storage and transport device suitable for long-distance transport; [0004] In the existing technology, an incubator with a liquid nitrogen cavity is used as an ultra-low temperat...

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Problems solved by technology

[0002] The global new crown pneumonia epidemic broke out in 2020. With the joint efforts of Chinese researchers, the development of the new crown vaccine has made rapid progress. However, the newly developed new crown vaccine needs to be stored in an ultra-low temperature environment of -70°C. Some cold chain transportation technologies pose new challenges

[0003] Under the existing technical environment, ordinary cold-chain transport on-board compressors cannot create a transport environment of -70°C, so it is urgent and necessary to develop an ultra-low temperature storage and transport device suitable for long-distance transport;

[0004] In the existing technology, an incubator with a liquid nitrogen cavity is used as an ultra-low temperature storage and transportation box, and the ultra-low temperature environment inside the box is realized by replenishing liquid nitrogen in the cavity. The problem with using such a box is: The amount of use is large, and the temperature inside the box cannot be adjusted accurately. When the temperature rises, liquid nitrogen is easily vaporized, which greatly shortens the cold storage time.

During long-distance transportation, vehicles and equipment on vehicles usually need to pass through a long no-signal area, resulting in the inability of the existing communication equipment to obtain real-time contact with the monitoring and command center, so that the monitoring and command center cannot monitor the status of the equipment in real time

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