A double-layer low-temperature storage tank

CN224339902UActive Publication Date: 2026-06-09ZUORAN JINGJIANG EQUIP MFG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZUORAN JINGJIANG EQUIP MFG
Filing Date
2025-05-23
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing double-walled cryogenic storage tanks have slow air diffusion and flow within the insulation material of the interlayer, making it difficult to quickly achieve and maintain a vacuum level, thus affecting vacuuming efficiency and the accuracy of vacuum level detection.

Method used

Air guide pipes are evenly distributed within the interlayer. Each air guide pipe has a vent hole, and the vacuuming end and the opposite end face the vacuum port and the center of the end cap, respectively. The air guide pipes are used to quickly transmit negative pressure, shorten the air diffusion distance, and draw away the air through the vent holes.

Benefits of technology

It enables rapid attainment and maintenance of a vacuum state within the interlayer, reducing vacuuming time, avoiding rework, and ensuring the accuracy and stability of vacuum level detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224339902U_ABST
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Abstract

This utility model discloses a double-layer cryogenic storage tank, which includes inner and outer tank bodies and a jacket. Gas guide pipes with vent holes are evenly distributed within the jacket. In the jacket of the vacuum-evacuated end, the end of the gas guide pipe faces the vacuum port; in the jacket of the opposite vacuum-evacuated end, the end of the gas guide pipe faces the center of the end cap. To prevent the removal of granular insulation material, filter cloth can be covered over the vent holes and both ends of the gas guide pipes. This utility model reduces vacuuming time and eliminates rework during vacuuming.
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