Superconducting Magnet Temperature Control via Vacuum Level Adjustment
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Solution Overview
Problem
Existing methods for quickly increasing the temperature of superconducting magnet devices, such as using electric heaters or high-pressure gas introduction, pose safety risks and can cause condensation issues due to excessive cooling by cryogenic parts, leading to potential rust on magnetic shields.
Innovation Solution
A superconducting magnet device with a gas introduction unit that connects a gas cylinder to the vacuum container, allowing a controlled introduction of gas to decrease the vacuum level from high to medium, facilitating faster temperature increase while minimizing condensation risks through a small, space-saving gas cylinder design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-pressure gas is introduced to quickly increase temperature, then temperature increase speed is improved, but condensation occurs on vacuum container surface causing rust on magnetic shields
Solution Approach 1:
The patent changes the pressure parameter by introducing gas at controlled amounts to achieve medium vacuum (1-100 Pa) instead of high vacuum, enabling faster heat transfer and temperature increase while avoiding the condensation problem that occurs with excessive gas introduction
Solution Approach 2:
The patent applies partial action by introducing a specific controlled amount of gas to reach medium vacuum level, which is sufficient to enable fast temperature increase through improved heat transfer, but not excessive enough to cause condensation on the vacuum container surface
2Temperature
If electric heater is used to increase temperature, then temperature control is improved, but safety risks increase due to excessive heating
Solution Approach 1:
The patent replaces the electric heating system with a gas introduction system that uses pressure control instead of electrical heating, eliminating safety risks associated with excessive electric heating while still achieving temperature increase through controlled thermal transfer from the surrounding environment
3Volume of moving object
If gas cylinder size is reduced to save space, then device compactness is improved, but gas filling amount for effective temperature increase is reduced
Solution Approach 1:
The patent changes the pressure parameter from high vacuum to medium vacuum (1-100 Pa range), which requires a smaller gas filling amount, thereby enabling the use of a compact gas cylinder while still achieving effective temperature increase through the improved heat transfer conditions at medium vacuum pressure
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 enables quicker temperature increase of superconducting magnet devices, reducing safety risks and condensation issues, allowing for efficient maintenance while using a compact and space-efficient gas introduction system.
Implementation Method 1
introducing a gas from the gas cylinder into the vacuum container
Implementation Method 2
a superconducting coil; a vacuum container that accommodates the superconducting coil
Data Source
AI summary
A superconducting magnet device includes: a superconducting coil; a vacuum container that accommodates the superconducting coil; a gas cylinder disposed outside the vacuum container and having a gas filling amount determined so as to decrease a degree of vacuum of the vacuum container from a high vacuum to a medium vacuum; and a gas introduction line connecting the gas cylinder to the vacuum container such that a gas is capable of being introduced from the gas cylinder to the vacuum container.