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Conduction Cooled Superconducting Magnet Devices

A superconducting magnet and conduction cooling technology, which is applied to superconducting magnets/coils, magnetic objects, electrical components, etc., can solve problems such as hindering the cooling of radiation shielding bodies, and achieve the effect of shortening the initial cooling time

Active Publication Date: 2011-11-30
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since these arrangement members conduct the external heat from the vacuum container to the radiation shield, they are the main cause of hindering the cooling inside the radiation shield.

Method used

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  • Conduction Cooled Superconducting Magnet Devices
  • Conduction Cooled Superconducting Magnet Devices
  • Conduction Cooled Superconducting Magnet Devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] figure 1 is a cross-sectional view showing the structure of the conduction-cooled superconducting magnet device according to Embodiment 1 of the present invention. Such as figure 1 As shown, the conduction-cooled superconducting magnet device 100 according to Embodiment 1 of the present invention includes a vacuum vessel 120 whose interior is evacuated in order to suppress heat conduction with the outside.

[0024] A superconducting coil 10 wound with a superconducting wire is accommodated in the vacuum container 120 . The superconducting coil 10 is wound around by a bobbin 20 . One end of the superconducting coil 10 is attached to the inner wall of the vacuum container 120 , and the other end is suspended by a load support 180 connected to the side end of the coil frame 20 . As the load bearing body 180 , a plate-like member made of CFRP (glass fiber reinforced plastic) is used. In the vacuum container 120 , a radiation shield 110 is arranged at a predetermined dis...

Embodiment approach 2

[0054] Figure 9 It is a partial cross-sectional view showing the state where the vacuum container and the radiation shield are brought into contact via SI. When the installation space of the conduction cooling superconducting magnet device is limited, it will also be as follows Figure 9 Shown is a situation in which a gap cannot be ensured between the vacuum container 120 and the SI 150 disposed on the radiation shield 110 . At this time, external heat is conducted from the vacuum vessel 120 to the radiation shield 110 via the SI 150 . Therefore, SI150 at this time corresponds to the arrangement member described in the first embodiment.

[0055] Figure 10 It is a partial sectional view showing the structure of the vacuum container, radiation shield, and SI according to Embodiment 2 of the present invention. Such as Figure 10 As shown, in the conduction-cooled superconducting magnet device according to Embodiment 2 of the present invention, cooling pipe 160 is arranged...

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Abstract

A superconducting coil (10) is accommodated in a vacuum chamber (120). A radiation shield (110) is arranged in the vacuum chamber (120) with a prescribed space from the vacuum chamber to surround a periphery of the superconducting coil. A refrigerator cools the superconducting coil (110) and the radiation shield by conduction. A provided member at least partly lies between the vacuum chamber (120) and the radiation shield (110), through which heat is conducted from the vacuum chamber to the radiation shield. A cooling pipe (160) has opposite end portions drawn out of the vacuum chamber and an intermediate portion in contact with the superconducting coil, the radiation shield, and the provided member. The provided member dissipates heat into a coolant flowing through the cooling pipe, to reduce the heat conducted to the radiation shield.

Description

technical field [0001] The present invention relates to conduction cooled superconducting magnet devices. Background technique [0002] In order to shorten the initial cooling time, in the existing documents, Japanese Patent Laid-Open No. 11-340028 and Japanese Patent Laid-Open No. 2000-182821, a conduction system with piping for cooling material flowing differently from a refrigerator is disclosed. Cool the superconducting magnet assembly. [0003] The superconducting coil device described in Japanese Patent Application Laid-Open No. 11-340028 includes a cooling pipe whose both end portions are drawn out of the vacuum vessel and whose intermediate portion is in thermal contact with the superconducting coil. The cooling pipe has: a first shield penetration portion that passes through the radiation shield in a non-thermal contact state; and a second shield penetration portion that passes through the radiation shield in a thermal contact state. [0004] In the superconductin...

Claims

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Application Information

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IPC IPC(8): H01F6/04H01F6/00
CPCH01F6/04
Inventor 井上达也横山彰一
Owner MITSUBISHI ELECTRIC CORP