Refrigerating device and high-temperature superconducting magnet refrigerating device

A refrigeration device, high-temperature superconducting technology, applied in household refrigeration devices, superconducting magnets/coils, refrigeration and liquefaction, etc., can solve the problem of several or even tens of hours, limited cooling capacity of cold heads, and thermal uniformity of magnets Difficult to guarantee and other problems, to achieve the effect of improving temperature uniformity

Active Publication Date: 2013-10-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The concept of conduction cooling is simple, but in actual use, due to the efficiency of the heat engine, the cooling capacity of the cold head is limited and decreases sharply with the decrease of temperature. Therefore, it usually takes several or even dozens of hours to use conduction cooling to cool large magnets. , which is not conducive to some occasion

Method used

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  • Refrigerating device and high-temperature superconducting magnet refrigerating device
  • Refrigerating device and high-temperature superconducting magnet refrigerating device
  • Refrigerating device and high-temperature superconducting magnet refrigerating device

Examples

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Embodiment 1

[0021] See figure 1 Embodiment 1 of the present invention provides a refrigeration device 100 , which includes a conduction refrigeration unit 110 and an immersion refrigeration unit 120 . Wherein, the conduction refrigeration unit 110 refrigerates the object to be cooled in the conduction refrigeration mode, and the immersion refrigeration unit 120 refrigerates the object to be cooled in the immersion refrigeration mode.

[0022] The conduction refrigeration unit 110 includes a refrigerator 10 , an outer sealed casing 20 and a cooling framework 18 . The refrigerator 10 is used to refrigerate the object to be cooled, the outer sealed shell 20 is used to seal the object to be cooled, the cold conducting frame 18 is located in the outer sealed shell 20, and is connected to Between the refrigerator 10 and the object to be cooled, it is used for conducting cooling.

[0023] The refrigerator 10 can be a G-M refrigerator or a pulse tube refrigerator. In this embodiment, the refri...

Embodiment 2

[0030] See figure 2 , Embodiment 2 of the present invention provides another refrigeration device 100 , which includes a conduction refrigeration unit 110 and an immersion refrigeration unit 120 .

[0031] Different from the first embodiment, the refrigerator 10 in the conduction refrigeration unit 110 in the second embodiment is a two-stage G-M refrigerator, which includes a primary cold head 12, a secondary cold head 14 and a cold shield 16 . The primary cold head 12 , the secondary cold head 14 , and the cold shield 16 are all located in the outer sealed shell 20 . The cold screen 16 is a shell structure, which is used to prevent the heat radiation from the outside to the object to be cooled; wherein, the secondary cold head 14 and the cold conducting frame 18 are all located in the cold screen 16; the primary The cold head 12 is located outside the cold shield 16 . The secondary cold head 14 is located between the primary cold head 12 and the cooling frame 18 , and is ...

Embodiment 3

[0037] See image 3 , Embodiment 3 of the present invention provides a high-temperature superconducting magnet refrigeration device 100 . The structure of the high temperature superconducting magnet refrigeration device 100 is basically the same as that of the refrigeration device 100 in the second embodiment. The only difference is that the object to be cooled in the high temperature superconducting magnet refrigeration device 100 is a high temperature superconducting magnet 80 . The high temperature superconducting magnet 80 can be formed by winding a high temperature superconducting wire. The material of the high temperature superconducting wire is not limited. In this embodiment, the material of the high temperature superconducting wire is Bi2223. It can be understood that when the main function of the high temperature superconducting magnet 80 is to provide a background field for a gyrotron device, the high temperature superconducting magnet 80 can be a magnet system w...

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Abstract

The invention provides a refrigerating device which comprises a conducting refrigerating unit and a soaking refrigerating unit, wherein the conducting refrigerating unit comprises a refrigerator, an outer layer sealing shell and a cold conducting framework, the refrigerator comprises a cold head, the cold head and the cold conducting framework are both located in the outer layer sealing shell, the soaking refrigerating unit comprises an inner layer sealing shell, a fluid injection pipe and a fluid discharge pipe, the inner layer sealing shell is located in the outer layer sealing shell, the fluid injection pipe and the fluid discharge pipe are both located on the inner layer sealing shell and pass through the inner layer sealing shell and the outer layer sealing shell, one end of the cold conducting framework is located outside the inner layer sealing shell and is connected with the cold head, and the other end of the cold conducting framework extends to the interior of the inner layer sealing shell. The invention further provides a high-temperature superconducting magnet refrigerating device.

Description

technical field [0001] The invention relates to a refrigeration device and a high-temperature superconducting magnet refrigeration device. Background technique [0002] High-temperature superconducting materials have developed rapidly since their discovery in the 1980s. Compared with low-temperature superconducting magnets, high-temperature superconducting magnets have the following advantages: high-temperature superconducting magnets can operate at higher temperatures, Refrigerators can be used for conduction refrigeration, and the Dewar structure is simple, which avoids the inconvenience and safety hazards caused by the use of liquid refrigerants, and is convenient for mobile use; it can perform repeated and rapid excitation discharge, which can improve the stability and safety of the magnet system; Work under higher magnetic field (up to 30 Tesla or more). [0003] High-temperature superconducting magnets need to work in a low-temperature environment, and there are gener...

Claims

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Application Information

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IPC IPC(8): H01F6/04F25B21/00
CPCY02B30/66F25D19/006
Inventor 顾晨李易韩征和
Owner TSINGHUA UNIV
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