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Device and method for measuring heat leakage of superconducting magnet low-temperature system

A low-temperature system and superconducting magnet technology, which can be used in measuring devices, measuring heat, calorimeters, etc.

Active Publication Date: 2018-06-15
HEFEI CAS ION MEDICAL & TECHNICAL DEVICES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many heat leakage factors in low-temperature superconducting magnets, including heat leakage of support in vacuum Dewar, heat leakage of radiation in vacuum Dewar, heat leakage of radiation in Dewar, heat leakage of measurement leads, etc., which make the ambient temperature of superconducting magnets rise.

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  • Device and method for measuring heat leakage of superconducting magnet low-temperature system
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  • Device and method for measuring heat leakage of superconducting magnet low-temperature system

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0051] It should also be noted that the orientation terms such as left, right, up, and ...

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Abstract

The invention discloses a device and method for measuring heat leakage of a superconducting magnet low-temperature system, wherein the measuring device comprises a helium injection assembly, a refrigerating assembly, a Dewar middle cylinder assembly, a cold screen middle cylinder assembly, a helium gas input assembly, a Dewar side cylinder assembly, a cold screen side cylinder assembly, a helium output assembly and a heating end assembly. The device is simple in structure and convenient to assemble, and the difference value of the measured refrigerating capacity and the thermal load of the refrigerating machine secondary cold head are the heat leakage of the measured low-temperature system, the measurement result is accurate and reliable, the calculation is simple, and the heat leakage ofthe superconducting magnet low-temperature system can be rapidly and efficiently measured.

Description

technical field [0001] The invention relates to the field of superconducting magnets, in particular to a heat leakage measuring device and a measuring method for realizing a superconducting magnet cryogenic system. Background technique [0002] The so-called low-temperature superconducting magnet refers to that the superconducting coil is in a certain low-temperature environment to achieve superconducting working state and other expected properties. If the temperature of the low-temperature environment where the coil is located rises, a quench phenomenon will occur in the superconducting coil, so that the superconducting magnet equipment cannot perform its normal working performance, and even a safety accident may occur. Therefore, ensuring the low temperature of superconducting magnets and reducing the heat leakage of the system is the key to realize their superconducting state. [0003] The current main refrigeration method for superconducting magnets is to inject liquid ...

Claims

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Application Information

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IPC IPC(8): G01K17/00
CPCG01K17/00
Inventor 冯汉升丁曾飞丁开忠王永胜胡锐邹春龙李蕾张华辉宋云涛陈永华陈根杨庆喜
Owner HEFEI CAS ION MEDICAL & TECHNICAL DEVICES CO LTD
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