A magnetic refrigeration storage device and magnetic refrigeration system

A magnetic refrigeration and regenerator technology, applied in refrigerators, refrigeration and liquefaction, machines using electrical/magnetic effects, etc. The effect of reducing and improving heat exchange efficiency and speeding up heat exchange rate

CN110887268BActive Publication Date: 2021-07-30GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-07-30

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Abstract

The invention relates to the technical field of magnetic refrigeration, in particular to a magnetic refrigeration regenerator. A magnetic refrigeration regenerator includes a housing, and the housing is provided with a liquid area and a magnetic working medium area. The liquid area and the magnetic working medium area It is a cavity structure independent of each other, a heat conduction device is provided between the liquid area and the magnetic working medium area, and a liquid inlet pipe and a liquid outlet pipe are respectively provided at both ends of the liquid area. The fluid and the magnetic working medium are divided into zones, which not only realizes the heat exchange between the magnetic working medium and the fluid, reduces the flow resistance of the fluid, but also avoids the problem of reverse flow of the stagnant volume of the regenerator, which reduces the flow resistance of the fluid , The reduction of resistance strengthens the circulation of fluid, improves the heat exchange rate, and reduces the flow energy consumption, which solves the current problems of high fluid energy consumption and low heat exchange efficiency.
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Description

technical field

[0001] The invention relates to the technical field of regenerators, in particular to a magnetic refrigeration regenerator and a magnetic refrigeration system. Background technique

[0002] Magnetic refrigeration technology is a technology that applies the magnetocaloric effect of magnetic materials to the field of refrigeration. The magnetocaloric effect is an inherent property of magnetic materials. It is the change of the magnetic entropy of the material itself caused by the change of the external magnetic field. Endothermic and exothermic process. For example, for ferromagnetic materials, the magnetocaloric effect is most significant near its Curie temperature (the temperature of magnetic order-disorder transition). When an external magnetic field acts, the magnetic entropy of the material decreases and heat is released; conversely , when the external magnetic field is removed, the magnetic entropy of the material increases and absorbs heat, which is sim...

Examples

Embodiment 1

[0032] like figure 1 As shown, a magnetic refrigeration regenerator includes a housing, and the housing is provided with a liquid area 5 and a magnetic working medium area. The liquid area 5 and the magnetic working medium area 8 are cavity structures independent of each other. The liquid area A heat conduction device is provided between 5 and the magnetic working medium area 8, and a liquid inlet pipe 501 and a liquid outlet pipe 502 are respectively provided at both ends of the liquid area 5.

[0033] The magnetic working medium area 8 includes a first magnetic working medium area 1 and a second magnetic working medium area 2, and the first magnetic working medium area 1 and the second magnetic working medium area 2 are respectively arranged on both sides of the liquid area 5 A first semiconductor cooling chip 3 is arranged between the first magnetic working medium area 1 and the liquid area 5 , and a second semiconductor cooling chip 4 is arranged between the second magneti...

Embodiment 2

[0040] Increase heat pipe on the basis of embodiment one, specifically:

[0041] like figure 2 As shown, the first heat pipe 6 is connected between the first magnetic working medium area 1 and the liquid area 5, and the second heat pipe 7 is connected between the second magnetic working medium area 2 and the liquid area 5. A heat pipe 6 and a second heat pipe 7 are both disposed outside the housing.

[0042] The thermodynamic cycle process is the same as that of the first embodiment, and the arrangement of the first heat pipe 6 and the second heat pipe 7 can accelerate the heat exchange between the first magnetic working medium area 1 and the second magnetic working medium area 2 and the liquid area 5 .

Embodiment 3

[0044] like image 3As shown, the magnetic working medium area 8 includes a first magnetic working medium area 1 and a second magnetic working medium area 2, and the first magnetic working medium area 1 and the second magnetic working medium area 2 are respectively arranged in the liquid area 5 On both sides, the first heat pipe 6 is connected between the first magnetic working medium area 1 and the liquid area 5, and the second heat pipe 7 is connected between the second magnetic working medium area 2 and the liquid area 5. Both the first heat pipe 6 and the second heat pipe 7 are disposed inside the casing.

[0045] Between the liquid area 5 and the first magnetic working medium area 1, between the liquid area 5 and the second magnetic working medium area 2 are all separated by a copper plate 9, and the first heat pipe 6 and the second heat pipe 7 are all separated from the copper plate 9 connections.

[0046] The thermodynamic cycle of the regenerator includes four proces...