Superconductive Magnet Refrigerator and Power Lead Port Separation
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Solution Overview
Problem
Conventional superconductive magnet devices for MRI apparatuses face maintenance challenges due to the adjacent placement of refrigerators and power lead ports, which obstruct each other's operations, leading to potential vacuum leaks and reduced insulation, affecting the stability and longevity of the device.
Innovation Solution
The refrigerator and power lead port are separately disposed above the supports connecting the vacuum vessels, allowing for simultaneous maintenance without obstruction, preventing vacuum leaks, and maintaining stable performance by avoiding adjacent placement that could cause dew condensation and insulation deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the refrigerator and power lead port are disposed adjacently to save space, then the device structure is more compact, but the maintenance work of the refrigerator and attachment/detachment work of the power lead port obstruct each other and cannot be performed simultaneously
Solution Approach 1:
The refrigerator and power lead port are segmented into separate disposal locations above the pair of supports, rather than being combined in a single adjacent space. This allows independent access to each component for maintenance and operation without mutual obstruction.
Solution Approach 2:
Both the refrigerator and power lead port are disposed in the vertical dimension above the supports, utilizing the vertical space rather than horizontal adjacency. This dimensional arrangement allows both components to be accessible from the same general area without blocking each other's operational paths.
2Volume of moving object
If the refrigerator and power lead port are disposed adjacently, then the overall device shape becomes more compact, but the combined whole shape becomes jumboized and complicated making it difficult to configure a cylindrical port matching the refrigerator contour
Solution Approach 1:
The refrigerator port and power lead port are separated into distinct locations, allowing each to maintain its own optimal geometric shape (cylindrical for the refrigerator port) without being constrained by the need to accommodate another component's access requirements.
Solution Approach 2:
The power lead port is extracted from the refrigerator port location and disposed separately above the supports. This extraction allows the refrigerator port to be configured as a simple cylinder matching the refrigerator contour, while the power lead port can be independently positioned and shaped.
3Temperature
If the refrigerator and power lead port are disposed adjacently with gas cooling in the power lead port, then cooling is provided, but dew condensation occurs and vacuum heat insulation is reduced due to vacuum packing deterioration and moisture permeation
Solution Approach 1:
The power lead port is extracted from adjacency to the refrigerator, removing it from the cold zone where gas cooling could cause dew condensation. This separation protects the refrigerator's vacuum packing from moisture while maintaining the power lead port's cooling function in a separate location.
Solution Approach 2:
The supports serve as an intermediary structure that allows both the refrigerator and power lead port to be disposed above them in separate locations. This intermediary arrangement enables spatial separation that prevents dew condensation issues while maintaining functional independence of both components.
4Volume of moving object
If the refrigerator and power lead port are disposed adjacently, then space is saved, but the maintenance time and costs increase due to obstructive work that cannot be performed simultaneously
Solution Approach 1:
By segmenting the disposal locations of the refrigerator and power lead port into separate positions above the supports, both components become independently accessible. This allows maintenance personnel to service the refrigerator and attach/detach the power lead port simultaneously without one component obstructing access to the other, thereby reducing total maintenance time.
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
This configuration enables trouble-free maintenance and attachment/detachment of the refrigerator and power lead port, ensuring long-term stable performance of the superconductive magnet device, reducing maintenance time and costs, and enhancing image quality by minimizing vibrations and vacuum leaks.
Implementation Method 1
an ultra low temperature refrigerator for again condensing a vapor gas is used
Implementation Method 2
in order to reduce the consumption of the liquid helium, an ultra low temperature refrigerator for again condensing a vapor gas is used
Implementation Method 3
the vacuum vessels 1A, 1B, respectively, of which insides are kept to be vacuum through upper and lower heat insulation 11A, 11B, respectively
Implementation Method 4
In each of the vacuum vessels is housed a coil vessel where a plurality of pairs of superconductive main coils different in diameter are housed together with a refrigerant
Data Source
AI summary
A superconductive magnet device includes: a pair of coil vessels configured to house a plurality of superconductive coils formed circularly, together with a refrigerant; a pair of vacuum vessels configured to house the coil vessels in the vacuum vessels, respectively; a pair of supports configured to connect the vacuum vessels to each other in a state of the vacuum vessels being faced to each other in an up and down direction, wherein a space between the vacuum vessels is made into a uniform magnetic field space; and a refrigerator and a power lead port configured to be provided at an upper portion of one vacuum vessel positioned upper than the other out of the vacuum vessels, wherein the refrigerator is disposed above one support out of the supports, and the power lead port is disposed above the other support different from the one support.