A dry liquid nitrogen transport tank with integrated automatic replenishment

By integrating an automatic liquid replenishment component and a small amount of vaporization components, the problem of liquid nitrogen consumption and pressure rise during the transportation of liquid nitrogen transport tanks is solved, achieving stability in cryogenic environments and efficient utilization of liquid nitrogen.

CN122300849APending Publication Date: 2026-06-30HUNAN HUAXIAYUAN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610756325.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-29
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing liquid nitrogen transport tanks experience liquid nitrogen consumption and pressure increases during transportation, leading to liquid nitrogen loss and waste, and it is difficult to maintain a stable low-temperature environment.

Method used

A dry liquid nitrogen transport tank with integrated automatic liquid replenishment was designed. It uses a small number of vaporization components to create a gaseous atmosphere for cryogenic storage, and uses an automatic liquid replenishment component to automatically replenish liquid nitrogen when it is consumed, reducing shaking and loss.

Benefits of technology

It achieves uniformity and stability of the low-temperature environment during transportation, reduces the consumption and waste of liquid nitrogen, and avoids violent shaking and leakage of liquid nitrogen during transportation.

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Abstract

This invention relates to the field of liquid nitrogen transport tank technology, and in particular to an integrated automatic liquid replenishment dry liquid nitrogen transport tank, comprising a transport tank, and further comprising: a first sealing cap; two sets of connecting handles for detachable fixing of the two; two vacuum chambers; a first partition plate for dividing the interior of the transport tank into an upper storage chamber and a lower liquid nitrogen chamber; a storage rack fixedly installed inside the storage chamber; a small-volume vaporization component for forming a gaseous atmosphere formed by the vaporization of a small amount of liquid nitrogen inside the storage chamber; and an automatic liquid replenishment component for storing liquid nitrogen and automatically replenishing liquid nitrogen after the liquid nitrogen inside the small-volume vaporization component is consumed. This device, through the setting of the small-volume vaporization component, allows liquid nitrogen to enter the small-volume vaporization component and vaporize inside to form a liquid nitrogen gaseous environment, thereby creating a low-temperature environment inside the storage chamber for low-temperature storage of transported goods.
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