Tubular Cryostat Access Structure for Superconducting Magnets
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Solution Overview
Problem
Existing superconducting magnet devices lack adequate accessibility for maintenance and equipment installation within the closed vacuum chamber, hindering efficient inspection and replacement of internal components.
Innovation Solution
A superconducting magnet device with a hollow tubular cryostat featuring a tubular partition wall that creates a cavity for improved access, allowing for installation of equipment and maintenance from the outside through a circumferentially wide opening portion, ensuring airtightness and reduced radiation impact with a metal vacuum sealing member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closed vacuum chamber is used to maintain vacuum integrity, then vacuum integrity is improved, but accessibility for maintenance and equipment installation deteriorates
Solution Approach 1:
The vacuum chamber is segmented into multiple regions by partition walls, creating distinct functional zones. The chamber is divided into a first vacuum chamber region and a second vacuum chamber region separated by a first partition wall, allowing independent access and maintenance in different segments without compromising the entire vacuum system.
Solution Approach 2:
A vacuum lock chamber serves as an intermediary space between the external environment and the main vacuum chamber. This intermediate chamber allows equipment to be transferred into the vacuum environment without breaking the vacuum seal, and provides access points for maintenance while maintaining vacuum integrity in the primary chamber.
2Reliability
If a closed vacuum chamber is used to maintain vacuum integrity, then vacuum integrity is improved, but accessibility for equipment installation deteriorates
Solution Approach 1:
The vacuum chamber is segmented into multiple regions by partition walls, creating distinct functional zones. The chamber is divided into a first vacuum chamber region and a second vacuum chamber region separated by a first partition wall, allowing independent access and maintenance in different segments without compromising the entire vacuum system.
Solution Approach 2:
A vacuum lock chamber serves as an intermediary space between the external environment and the main vacuum chamber. This intermediate chamber allows equipment to be transferred into the vacuum environment without breaking the vacuum seal, and provides access points for maintenance while maintaining vacuum integrity in the primary chamber.
3Reliability
If sealing members are placed in the vacuum chamber to maintain airtightness, then airtightness is improved, but radiation effects on sealing members worsen
Solution Approach 1:
A radiation-proof shutter acts as an intermediary barrier between the radiation source and the sealing members. The shutter can be positioned to block radiation paths while allowing the sealing members to maintain their airtight function, protecting them from direct radiation exposure.
Solution Approach 2:
The sealing members are extracted from the direct radiation field and placed in protected locations within the vacuum chamber structure. By repositioning sealing components away from high-radiation zones while maintaining their sealing function, the harmful radiation effects are minimized.
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
Enhances accessibility to internal equipment and components within the cryostat, facilitating maintenance and installation while maintaining vacuum integrity and reducing radiation effects on sealing members.
Implementation Method 1
a superconducting magnet device that has a circular ring-shaped superconducting coil
Data Source
AI summary
To provide a superconducting magnet device enabling improved access to internal equipment. A superconducting magnet device includes: a superconducting coil; and a hollow tubular cryostat having an outer peripheral wall and an inner peripheral wall connected to each other so as to define a vacuum region where the superconducting coil is disposed. The cryostat has a tubular partition wall connecting the outer peripheral wall and the inner peripheral wall and a cavity partitioned from the vacuum region by the tubular partition wall is formed inside the tubular partition wall. The outer peripheral wall has an opening portion wide in the circumferential direction of the cryostat, and the opening portion communicates with the cryostat hollow portion radially inside the inner peripheral wall through the cavity.