长尾式杜瓦装置以及水冷磁体装置

By designing a long-tailed Dewar device, which combines a liquid nitrogen chamber and a liquid helium chamber with a vacuum chamber and a flow guide tube, the problem of inaccurate cooling of superconducting coils in harsh environments was solved, achieving the low-temperature requirements of superconductivity and ensuring the accuracy of scientific experimental data.

CN122216894BActive Publication Date: 2026-07-17HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
Filing Date
2026-05-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional cryogenic Dewar devices cannot meet the cryogenic requirements for superconducting coils to enter the superconducting state under harsh experimental conditions, resulting in distorted scientific experimental data.

Method used

Design a long-tailed Dewar device, comprising a Dewar shell, a cryogenic Dewar assembly, and a sample rod assembly. The sample rod sleeve is cooled by liquid nitrogen and liquid helium chambers, and cryogenic leakage is reduced by vacuum chamber and guide tube, ensuring the cooling accuracy of the sample end.

Benefits of technology

Precise cooling of superconducting coils was achieved in harsh environments, meeting the low-temperature requirements of the superconducting state and reducing the impact of the external environment on experimental data.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122216894B_ABST
    Figure CN122216894B_ABST
Patent Text Reader

Abstract

本发明公开了一种长尾式杜瓦装置以及水冷磁体装置,长尾式杜瓦装置包括杜瓦外壳、低温杜瓦组件和样品杆组件,低温杜瓦组件包括上下连通的上冷却绝热部和下冷却绝热部以及贯穿上冷却绝热部并伸入下冷却绝热部的样品杆套筒,上冷却绝热部包括封盖、第一上绝热套筒、第二上绝热套筒和液氦开关结构,下冷却绝热部包括与第一上绝热套筒底部连接的下绝热套筒和导流管,水冷磁体装置上述的长尾式杜瓦装置。本发明的优点在于,通过减少第二上绝热套筒和下绝热套筒内的低温向外传出,以及通过导流管的设置来减少液氦其流动过程中低温向外传出,保证了对样品杆组件样品端的冷却降温的精度,以满足超导线圈进入超导状态的低温要求。
Need to check novelty before this filing date? Find Prior Art