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Regenerator and cold accumulation type low-temperature refrigerator adopting same

A low-temperature refrigerator and regenerator technology, applied in refrigerators, gas cycle refrigerators, refrigeration components, etc., can solve the problems of reducing the refrigeration performance of refrigerators and reducing the filling amount of cold storage materials, so as to improve refrigeration efficiency and reduce replacement The effect of thermal efficiency reduction and performance improvement

Pending Publication Date: 2022-03-01
SHENZHEN POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unopened part of the inserted part will generate additional flow path resistance in the cold accumulator, and the inserted part will also reduce the filling amount of the cold storage material, thereby reducing the refrigeration performance of the refrigerator

Method used

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  • Regenerator and cold accumulation type low-temperature refrigerator adopting same
  • Regenerator and cold accumulation type low-temperature refrigerator adopting same
  • Regenerator and cold accumulation type low-temperature refrigerator adopting same

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Embodiment Construction

[0029] The following descriptions of various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented. The terms of direction and position mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom" ", "side", etc., are only referring to the direction or position of the drawings. Therefore, the terms used in direction and position are used to explain and understand the present invention, but not to limit the protection scope of the present invention.

[0030] Please refer to figure 1 As shown, an embodiment of the present invention provides a regenerative cryogenic refrigerator, which is, for example, a Gifford-McMahon (GM) type cryogenic refrigerator using helium as a refrigerant gas. ; The cool-storage low-temperature refrigerator 1 includes:

[0031] The compressor 2, the supply valve 4, and the return valve 3 that form the sucti...

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Abstract

The invention discloses a regenerator and a cold accumulation type low-temperature refrigerator adopting the regenerator, and belongs to the technical field of low-temperature refrigerators. The silk screens of the two different structures are composed of laminated substrate silk screens with uniform void ratios and laminated interval silk screens with different void ratios in the radial direction. The regenerator has the variable porosity in the radial direction, the flow resistance of working medium gas in the regenerator can be adjusted, the refrigerating capacity loss of the refrigerator caused by uneven radial temperature distribution is reduced, and the refrigerating efficiency of the refrigerator is improved. Meanwhile, due to the fact that the material of the laminated interval silk screen is the same as that of the laminated substrate silk screen serving as the main cold storage material, the heat exchange area and the heat exchange efficiency can be guaranteed, the problems that the heat exchange efficiency is reduced and the refrigeration performance is degraded due to the insertion part can be solved, and the performance of the refrigerator is further improved.

Description

technical field [0001] The invention belongs to the technical field of low-temperature refrigerators, and in particular relates to a cold storage device and a cold storage type low-temperature refrigerator using the cold storage device. Background technique [0002] The regenerative refrigerator is a general term for refrigerators having a regenerator, and includes, for example, a GM refrigerator, a Stirling refrigerator, a pulse tube refrigerator, a Solvin refrigerator, and the like. Among them, Gifford-McMahon (Gifford-McMahon) is a device that continuously performs Simon expansion refrigeration through adiabatic degassing and cooling. The GM refrigerator changes the volume of the expansion space by accommodating and reciprocating the piston in the cylinder, and cooperates with the gas distribution valve of a given phase, so that the refrigerant gas expands in the expansion space to generate cold, and the cold is transferred through the cold end heat exchanger. The amount...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/14
CPCF25B9/14F25B2309/14F25B2400/24
Inventor 李敏虹谢宏胡子珩吕志宁汪桢子余鹏李重杭王哲
Owner SHENZHEN POWER SUPPLY BUREAU
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