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Regenerator and refrigerating machine

A technology of regenerator and filling area, applied in refrigerators, refrigeration and liquefaction, compressors, etc., to achieve the effect of improving refrigeration efficiency

Pending Publication Date: 2021-06-18
氢合科技(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of existing regenerators, the present invention provides a regenerator and a refrigerator. By rationally setting the distribution of the refrigeration medium and setting the composition of the refrigeration medium, the temperature range from 10K to 4K is divided into two stages. Improve the cooling efficiency of the cold storage in the temperature range from 10K to 4K

Method used

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Experimental program
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Effect test

Embodiment 1

[0025] figure 1 A schematic cross-sectional structure diagram of a cool accumulator according to an embodiment of the present invention is shown.

[0026] The present invention provides a regenerator, including a heat exchange chamber, the heat exchange chamber is divided into a first filling area 101, a second filling area 102 and a third filling area 103 along the axial direction of the regenerator;

[0027] The first loading area 101 is filled with lead balls;

[0028] The second filling area 102 is filled with holmium copper balls and gadolinium oxysulfide balls, and the diameter of the holmium copper balls is smaller than the diameter of the gadolinium oxysulfide balls;

[0029] The third filling area 103 is filled with gadolinium oxysulfide balls.

[0030] Specifically, the factors affecting the heat storage and release of the regenerator include factors such as the heat capacity of the heat exchange particles inside the regenerator, the sum of the heat exchange surfac...

Embodiment 2

[0037] figure 2 A schematic cross-sectional structure diagram of a cool accumulator according to an embodiment of the present invention is shown.

[0038] On the basis of the first embodiment, in the embodiment of the present invention, a flow turbulence mechanism is added in the cold storage shell 100 .

[0039] Specifically, the heat exchange medium enters the heat exchange cavity from the heat exchange medium inlet, and the flow rate of the heat exchange medium near the axis of the heat exchange cavity is faster than that on both sides. The heat exchange between the heat medium and the gadolinium oxysulfide balls in the third packing area 103 is more efficient; the holmium copper balls are filled in the gaps in the second packing area 102, so that the fluid in the second packing area 102 can be reduced through the gap, which can be preliminarily Disperse the heat exchange medium to improve heat exchange efficiency; further, in order to reduce the flow velocity of the heat...

Embodiment 3

[0044] An embodiment of the present invention also provides a refrigerator, which includes one of the aforementioned cold accumulators.

[0045] To sum up, the embodiment of the present invention provides a regenerator and a refrigerator. The regenerator realizes external refrigeration sequentially through the multi-stage filling area, and the cooling efficiency can be improved by filling the gadolinium oxysulfide balls with holmium copper balls with smaller diameters; The addition of a turbulence mechanism can change the flow of the heat exchange medium in the heat exchange chamber, give full play to the heat exchange performance of the heat exchange medium in each area, improve heat exchange efficiency and avoid insufficient use of the heat exchange medium, and improve the performance of the cold storage unit. cooling efficiency.

[0046] By improving the composition and material of the heat exchange medium of the cold accumulator, the cooling efficiency per unit volume of t...

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Abstract

The invention discloses a regenerator and a refrigerating machine. The regenerator comprises a heat exchange cavity which is divided into a first filling area, a second filling area and a third filling area in the axis direction of the regenerator, wherein the first filling area is filled with lead balls; the second filling area is filled with holmium copper balls and gadolinium oxysulfide balls, and the diameters of the holmium copper balls are smaller than those of the gadolinium oxysulfide balls; and the third filling area is filled with gadolinium oxysulfide balls. According to the regenerator disclosed by the invention, by reasonably setting the distribution of the refrigerating medium and setting the components of the refrigerating medium, the temperature from a 10K temperature zone to a 4K temperature zone is divided into two stages, so that the refrigerating efficiency of the regenerator from the 10K temperature zone to the 4K temperature zone is improved.

Description

technical field [0001] The invention relates to the field of refrigeration, in particular to a cold accumulator and a refrigerator. Background technique [0002] The 4K type GM refrigerator needs to realize the cooling effect from room temperature to 4K temperature range. The cold accumulator in the refrigerant of the existing products generally uses phosphor bronze mesh or stainless steel mesh to achieve cooling from room temperature to 40K temperature range. Realize cooling from 40K temperature zone to 10K temperature zone, while cooling from 10K temperature zone to 4K temperature zone is generally realized by holmium copper balls or / and gadolinium oxysulfide balls with a diameter of 0.15mm-1.0mm. [0003] Under the restriction of objective physical laws, the lower the temperature zone, the more difficult it is to refrigerate, and the factors that affect the cooling capacity of the regenerator include the surface area of ​​the refrigerating medium, the heat capacity of the...

Claims

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Application Information

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IPC IPC(8): F25B9/14C09K5/14
CPCC09K5/14F25B9/14
Inventor 杜希阳艾青梁志炜冯苌春
Owner 氢合科技(广州)有限公司
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