Cooling apparatus for superconductor cooling container
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Solution Overview
Problem
Conventional superconductor cooling containers face challenges in manufacturing complexity and cost due to the difficulty in producing and bonding a circular copper band, which affects heat transfer efficiency and quality control.
Innovation Solution
A cooling apparatus with planar mount plates and heat transfer members interconnected via copper flexible members, replacing the conventional copper band, and a separately manufactured cooling band installed on a bent steel plate to ensure uniform cooling performance and simplify manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a circular copper band is used to secure temperature uniformity in the nitrogen tank, then temperature uniformity is improved, but manufacturing difficulty and cost increase significantly
Solution Approach 1:
The circular copper band is divided into multiple planar copper bands that are arranged circumferentially around the nitrogen tank. Each planar copper band is manufactured separately using simple planar machining processes, avoiding the complexity of manufacturing a large circular band. The segmented structure maintains temperature uniformity while significantly reducing manufacturing difficulty and cost.
2Strength
If brazing is used to bond the copper band to the nitrogen tank, then bonding strength is improved, but vacuum furnace size limitations are imposed
Solution Approach 1:
The requirement for high-temperature brazing is extracted and replaced with a simpler bonding method. The planar copper bands are bonded to the nitrogen tank using conventional welding or adhesive bonding techniques that do not require large vacuum furnaces, thereby eliminating the device complexity constraint while maintaining adequate bonding strength.
3Reliability
If a conventional copper band is used, then heat transfer efficiency is maintained, but quality control of the bonding state becomes difficult
Solution Approach 1:
A filler metal with a color significantly different from the copper band material is used in the bonding process. This creates a visible color contrast that allows easy visual inspection of the bonding state, enabling simple quality control to verify that the copper bands are properly bonded to the nitrogen tank while maintaining heat transfer efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reduces manufacturing costs and complexity, allows for reliable quality control of heat transfer, and maintains uniform cooling performance across the entire circumference of the superconductor cooling container.
Implementation Method 1
a freezer disposed outside the outer container and configured to generate cold air
Implementation Method 2
the heat transfer members are interconnected to each other via copper flexible members
Implementation Method 3
the inner container contains a liquid coolant in which the superconductor is immersed
Data Source
AI summary
Disclosed is an disclosure pertaining to a cooling apparatus for a superconductor cooling container. The disclosed cooling apparatus for a superconductor cooling container comprises: an inner container which is disposed in an outer container and in which a superconductor is immersed in a liquid refrigerant; a refrigerator disposed outside the outer container to generate cold air; and a cryogenic maintenance device which is connected to the refrigerator and maintains the inside of the inner container in a cryogenic state.