Molecular sieve device for low-temperature tank car

By installing a molecular sieve device in the vacuum jacket of the cryogenic tank truck and using an actuator to control the destruction of the sealing components, the problems of high material cost, increased weight and complex installation in the prior art have been solved, achieving lightweighting and improved reliability of the cryogenic tank truck.

CN224113635UActive Publication Date: 2026-04-14GUANGDONG JIANCHENG MECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520867357.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-14
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

Existing molecular sieve devices for cryogenic tank trucks have high material costs, increased device weight, and complex installation due to the need to withstand the internal pressure of the inner container, which affects the strength of the end cap structure.

Method used

The molecular sieve device is fixed in a vacuum jacket. The sealing components are broken by an actuation device to achieve communication with the vacuum jacket. The device adopts a thin and light structure design to avoid opening holes in the end caps for installation. The molecular sieve is activated to adsorb gas by using an inflation port or mechanical puncture components.

Benefits of technology

It reduces material costs and device weight, simplifies installation processes, improves the reliability and economy of vacuum jacket maintenance, and avoids damage to the strength of the end cap structure.

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Abstract

The utility model relates to the technical field of low-temperature tank trucks, in particular to a molecular sieve device for a low-temperature tank truck, which comprises a shell with a sealed cavity formed inside, a molecular sieve accommodated in the sealed cavity, an actuating device and an opening structure arranged on the shell, a sealing component arranged at the opening structure, and a sealing component arranged on the shell by applying external acting force through the actuating device. The sealing assembly is damaged, so that the molecular sieve is communicated with the vacuum interlayer through the opening structure to adsorb gas; the molecular sieve device for the low-temperature tank car is arranged in the vacuum interlayer, so that the shell does not need to bear the pressure of the inner container, a lighter and thinner structural design can be adopted, the material cost and the self weight of the device are directly reduced, and the problems that the wall is thick and heavy and the cost is high due to pressure bearing are solved; the process of trepanning and reinforcing is omitted, the installation process is simplified, meanwhile, the structural strength of the end socket is prevented from being damaged, the problems that installation is tedious, and the strength of the end socket is affected are solved, and the reliability and economical efficiency of maintenance of the vacuum interlayer of the low-temperature tank car are integrally improved.
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