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Superconducting dewar tank

A dewar and superconducting technology, applied in the field of dewars, can solve the problems of poor thermal insulation performance, inability to overcome the influence, and inability to ensure the high efficiency and reliability of superconductors, and achieve the effect of reducing heat transfer and ensuring high efficiency

Active Publication Date: 2016-09-21
上海烙嘉科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the superconducting application, the current Dewar tank still has many defects, such as poor thermal insulation performance, no vacuum insulation structure, unable to overcome the influence of the circulating current on the superconducting device caused by the magnetic field generated during the operation of the superconductor, and the low temperature medium cannot Therefore, it cannot ensure the high efficiency of superconductor operation and the reliability of long-term operation, and it cannot meet the needs of applications in the field of superconducting materials

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  • Superconducting dewar tank
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Embodiment Construction

[0017] The superconducting Dewar tank is used for placing the tank body of superconducting material, surrounded by a full vacuum environment, and the vacuum environment is connected.

[0018] preferred, see Figure 1 ~ Figure 3 , the superconducting Dewar tank of the present invention, comprising a first inner tube 1, a second inner tube 2, a third inner tube 3, an outer tube 4, an outer ring cover 9 and an inner ring cover 19;

[0019] The second inner tube 2 is sleeved outside the first inner tube 1, and the cavity between the second inner tube 2 and the first inner tube 1 is the first vacuum chamber 6;

[0020] The third inner tube 3 is set outside the second inner tube 2, and the cavity between the third inner tube 3 and the second inner tube 2 is a low-temperature medium cavity 7, which is used to place low-temperature medium and superconducting materials;

[0021] The outer tube 4 is sleeved outside the third inner tube 3, and the cavity between the outer tube 4 and the...

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Abstract

The invention provides a superconducting dewar tank, which is characterized in that full vacuum environments are deployed around a tank body used for placing a superconducting material, and the vacuum environments communicate with one another. According to the superconducting dewar tank provided by the invention, a full vacuum structure around the superconductor is adopted, a radiation shield is designed, and an insulator material is made into a barrel body structure, thereby not only being able to greatly reduce the heat transfer, but also being able to avoid the influence of circular current generated by a magnetic field formed in the operation of the superconductor on a superconducting device, a low temperature medium can be automatically supplemented to ensure the high operation efficiency and long-term operation reliability of the superconductor, and the application demands in the field of superconducting materials can be satisfied.

Description

technical field [0001] The invention relates to a Dewar tank for constructing superconducting devices. Background technique [0002] The BCS theory regards superconductivity as a macroscopic quantum effect. It proposes that electrons with opposite spin and momentum in metals can be paired to form so-called "Cooper pairs", and Cooper pairs can move without loss in the lattice to form superconducting currents. At the same time as the BCS theory was proposed, Nikolai Berglyubov also independently proposed a quantum mechanical explanation of superconductivity. The Berglyubov transformation he used is still commonly used today. [0003] The direct interaction between electrons is the Coulomb force of mutual repulsion. If there is only the direct action of Coulomb force, this interaction between electrons can be mutually attractive when certain conditions are met, and it is this attraction that leads to the generation of "Cooper pairs". In general, the mechanism is as follows: ...

Claims

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Application Information

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IPC IPC(8): H01F6/04
CPCH01F6/04
Inventor 张泽民
Owner 上海烙嘉科技有限公司