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Superconducting magnet quenching protection system and magnetic resonance system

A technology for superconducting magnets and quench protection, applied in superconducting magnets/coils, usage of superconducting elements, magnetic objects, etc.

Active Publication Date: 2018-05-11
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a superconducting magnet quench protection system and a magnetic resonance system for the problem that a large amount of heat may be generated on the superconducting magnet when the superconducting magnet is quenched

Method used

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  • Superconducting magnet quenching protection system and magnetic resonance system
  • Superconducting magnet quenching protection system and magnetic resonance system
  • Superconducting magnet quenching protection system and magnetic resonance system

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] figure 1 It is a structural schematic diagram of a superconducting magnet quench protection system in an embodiment. like figure 1 As shown, the present embodiment provides a superconducting magnet quench protection system, which may include a superconducting magnet container 10 and a superconducting magnet 11, wherein the superconducting magnet 11 may include one or more superconducting coils 12; the superconducting magnet 11 can be placed in the superconducting magnet container 10. Further, the system may further include an external coupling coil 13 and a quench control device 14 ; wher...

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Abstract

The invention relates to a superconducting magnet quenching protection system and a magnetic resonance system. The superconducting magnet quenching protection system comprises a superconducting magnet, a superconducting magnet container, an external coupling coil, and a quenching control device. The superconducting magnet comprises a superconducting coil, and is disposed in the superconducting magnet container. The external coupling coil is adjacent to the superconducting coil and is disposed outside the superconducting magnet container. The quenching control device is connected with the superconducting coil and the external coupling coil. The quenching control device can be used for detecting the quenching state of the superconducting coil, and triggering the coupling of the external coupling coil and the superconducting coil when the superconducting coil is in the quenching state, thereby transferring the magnetic energy of the superconducting coil to the external coupling coil, andavoiding the potential damages, caused by the large amount of heat generated by the superconducting coil, to the superconducting magnet. Moreover, most of heat caused by quenching will be dissipated outside the superconducting magnet container. For a superconducting magnet of a helium bath soaking type, the device can prevent the evaporation loss of a large amount of liquid helium.

Description

technical field [0001] The invention relates to the field of superconducting magnet quench protection, in particular to a superconducting magnet quench protection system and a magnetic resonance system. Background technique [0002] Superconducting magnets are usually composed of multiple superconducting coils made of superconducting cables. In general, superconducting magnets have superconducting properties at low temperatures, that is, the impedance is close to zero and there is no Joule heating. However, if due to some reasons, the temperature of the superconducting magnet exceeds the critical temperature, the superconducting magnet will change from a superconducting state to a non-superconducting state. This process is called quenching. If quench protection is not performed, the magnetic energy stored in the superconducting magnet will damage the magnet, causing life and property safety problems. [0003] The traditional quench protection system is to rapidly reduce the...

Claims

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Application Information

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IPC IPC(8): H02H7/00H02H5/00H01F6/00H01F6/06
CPCH01F6/00H01F6/06H02H5/00H02H7/001Y02E40/60
Inventor 蔡衍卿
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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