A Thermoacoustic Driven Magnetic Refrigeration System

A technology of magnetic refrigeration and thermoacoustic engine, applied in refrigerators, refrigeration and liquefaction, mechanisms for generating mechanical power, etc., can solve problems such as low reliability and complex heat exchange structure, and achieve low reliability and heat exchange structure Simple, technically reliable results

Active Publication Date: 2021-12-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, it is necessary to provide a thermoacoustic driven magnetic refrigeration system without mechanical moving parts, which effectively solves the problems of low reliability and complex heat transfer structure in the prior art

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  • A Thermoacoustic Driven Magnetic Refrigeration System
  • A Thermoacoustic Driven Magnetic Refrigeration System
  • A Thermoacoustic Driven Magnetic Refrigeration System

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Embodiment Construction

[0044]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0045] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative ...

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Abstract

A thermo-acoustic-driven magnetic refrigeration system, the first thermo-acoustic engine and the second thermo-acoustic engine arranged oppositely communicate with each other through two parallel first U-shaped tubes and second U-shaped tubes; the thermo-magnetic conversion subsystem includes a water cooler, a thermo-magnetic material module and a hot-end heat exchanger arranged along the first U-shaped tube; the magneto-thermal conversion subsystem includes a water cooler, a magnetic-caloric material module and a cold-end heat exchanger arranged along the second U-shaped tube, The thermomagnetic material module and the magnetocaloric material module are connected by a magnetic circuit. The above-mentioned thermoacoustic-driven magnetic refrigeration system uses a thermoacoustic engine to drive the heat exchange between the liquid heat exchange medium and the thermomagnetic material, and the heat exchange between the liquid heat exchange medium and the magnetocaloric material, which is derived from the phase transition of the thermomagnetic material near the Curie temperature. Realize the periodic "on" and "off" of the magnetic circuit, make the magnetocaloric material periodically magnetize and demagnetize, and then realize the magnetic refrigeration. The above-mentioned thermoacoustic-driven magnetic refrigeration system has no mechanical moving parts, simple heat exchange structure, high technical reliability, and realizes thermally driven refrigeration.

Description

technical field [0001] The invention relates to the technical field of magnetic refrigeration, in particular to a thermoacoustic-driven magnetic refrigeration system. Background technique [0002] A thermoacoustic engine is a thermal-mechanical energy conversion device with no moving parts. It is generally a pipeline structure. When there is an obvious axial temperature gradient in a certain section of the working medium in the pipeline, self-excited oscillation will occur in the pipeline. Through Continuously heating the hot end of the pipe and cooling the cold end of the pipe can maintain this self-excited oscillation and realize the continuous conversion of thermal energy into mechanical energy. [0003] The thermomagnetic effect means that when the thermomagnetic material is heated above the Curie temperature, it changes from a ferromagnetic state to a paramagnetic state, and the magnetic permeability is greatly reduced. When the thermomagnetic material is cooled back to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B21/00F03G7/00
CPCF25B21/00F03G7/00Y02B30/00
Inventor 罗二仓蒋超朱顺敏罗开琦徐静远余国瑶
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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