Swing type room temperature magnetic refrigeration machine

A room temperature magnetic refrigerator and magnetic refrigerator technology, applied in refrigerators, refrigeration and liquefaction, household refrigeration equipment, etc., can solve the unilateral force of the working medium disk, the complex structure of the rotary room temperature magnetic refrigerator, and the reciprocating room temperature Problems such as low efficiency of magnetic refrigerators, to achieve the effect of increased service life, good uniformity of magnetic field strength, and compact structure

Active Publication Date: 2012-01-04
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0007] In order to solve the shortcomings of the low efficiency of the reciprocating room temperature magnetic refrigerator, the complex structure of the rotary roo

Method used

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  • Swing type room temperature magnetic refrigeration machine
  • Swing type room temperature magnetic refrigeration machine
  • Swing type room temperature magnetic refrigeration machine

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Embodiment Construction

[0034] In order to clearly highlight the purpose, technical solutions and advantages of the present invention, the implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] This embodiment provides a swing-type room temperature magnetic refrigerator, including a permanent magnet magnetic field source system, a magnetic working medium turntable system, a fluid heat exchange system, and a motion control system.

[0036] Permanent magnet magnetic field source system: two identical permanent magnet systems are symmetrically arranged, and the cross-sectional structure of the permanent magnet system is as follows figure 1 As shown, the schematic diagram of the three-dimensional structure is shown in figure 2 As shown, it includes a permanent magnet that provides an excitation source and an E-type magnetic permeable frame 9 that plays a role in magnetic conduction. The magnetic core 3 in the middle of th...

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Abstract

The invention discloses a swing type room temperature magnetic refrigeration machine, which comprises a permanent magnet magnetic field source system, a magnetic working medium turntable system, a fluid heat exchange system and a motion control system, wherein the motion control system controls a turntable box of the magnetic working medium turntable system to rotate so as to drive a magnetic working medium to get in or get out a magnetic field space; the magnetic working medium positioned in the magnetic field space is magnetized to release heat; heat transmission fluid flows towards a hot-end heat exchanger so as to transmit the heat produced by the magnetic working medium to the hot-end heat exchanger; the hot-end heat exchanger transmits the heat to a high temperature space; the magnetic working medium which is not positioned in the magnetic field space is demagnetized to absorb heat; the heat transmission fluid flows towards a cold-end heat exchanger; and the magnetic working medium absorbs the heat from a low temperature closed space through the fluid and the cold-end heat exchanger, so that a refrigeration effect at room temperature can be achieved and the structure of the magnetic refrigeration machine is simplified. The swing type room temperature magnetic refrigeration machine has the advantage of simple structure of a reciprocating room temperature magnetic refrigeration machine and the advantage of high efficiency of a rotary room temperature magnetic refrigeration machine.

Description

technical field [0001] The invention relates to a magnetic refrigerator, in particular to a swing type room temperature magnetic refrigerator. Background technique [0002] At present, the research on room temperature magnetic refrigeration is actively carried out worldwide, mainly focusing on the preparation of magnetic refrigeration materials and the research of magnetic refrigeration prototypes. [0003] (1) Gd and its compounds. At present, the most typical material that can be used as a magnetic refrigeration cycle working fluid is the lanthanide rare earth metal gadolinium Gd. The Curie temperature of Gd is 293K, close to room temperature, and has a large magnetocaloric effect. [0004] (2) Perovskite and perovskite-like compounds. In recent years, large magnetic entropy changes have been discovered in perovskite manganese oxides with ultra-large magnetocaloric effects, which has attracted widespread attention to this type of materials. The biggest advantage of thi...

Claims

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Application Information

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IPC IPC(8): F25B21/00
CPCF25B21/00F25D21/00Y02B30/66F25B2321/0021Y02B30/00
Inventor 曾德长柏占郑志刚钟喜春刘仲武余红雅邱万奇
Owner SOUTH CHINA UNIV OF TECH
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