Method and device for judging boiling criticality of cooling surface of superconducting magnet cooled by liquid helium

CN119294210AActive Publication Date: 2025-01-10INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Patent Information

Application Number
CN202411825737.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-01-10
Estimated Expiration
2044-12-12

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Abstract

The invention provides a method and device for judging the boiling criticality of the cooling surface of a superconducting magnet cooled by liquid helium, and relates to the technical field of thermal simulation. The method comprises the following steps: establishing a three-dimensional physical model of the superconducting magnet, and acquiring three-dimensional magnetic field distribution of the superconducting magnet based on the three-dimensional physical model; obtaining critical heat flux density distribution of the superconducting magnet based on the three-dimensional magnetic field distribution and the gravity field; obtaining AC loss thermal power distribution of the superconducting magnet based on the three-dimensional magnetic field distribution, performing thermal simulation analysis on the AC loss thermal power distribution, and determining heat flux density distribution of the cooling surface of the superconducting magnet; and comparing the heat flux density distribution with the critical heat flux density distribution, and determining the liquid helium boiling state on the surface of the superconducting magnet.
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Citation Information

Patent Citations

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  • Finite element-based electromagnetic, thermal and mechanics multi-field coupling simulation modeling method for superconducting magnet

    WO2024077861A1

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