Rotary magnetic refrigeration device and application thereof

Abstract

The invention discloses a rotary magnetic refrigeration device. The rotary magnetic refrigeration device comprises a magnetic field source, two active regenerator modules and cold and hot fluid heat exchange channels, and is characterized in that: two packing layers sandwich a magnetic medium in a radial direction so as to form one active regenerator module; the two active regenerator modules are staggered coaxially and axially and arranged at an interval of 180 DEG in the circumferential direction, and pass through an upper half magnetic field region covered with the magnetic field source and a lower half nonmagnetic region alternately when rotating synchronously; A hot fluid channel which is communicated with a high temperature end heat exchanger is statically arranged in the pace of the magnetic field region at the rotating periphery of the active regenerator module; and the cold fluid channel which is communicated with a low temperature end heat exchanger is statically arranged in the space of the nonmagnetic region at the rotating periphery of the active regenerator module, and thermal insulation layers are arranged between the two active regenerator modules in the axial direction, and at the periphery and left and right end faces of the cold and hot fluid channels.

Description

technical field [0001] The invention relates to a refrigeration device, in particular to a rotary magnetic refrigeration device based on an active cold storage module and its application. Background technique [0002] In order to protect the environment and improve energy utilization efficiency, researchers from various countries have also begun to explore and research new refrigeration methods while looking for alternative refrigerants to traditional gas compression refrigeration technologies. Magnetic refrigeration is a green and environmentally friendly new refrigeration technology. The realization of this technology is based on the magnetocaloric effect of magnetic materials. The temperature of magnetic materials changes during the excitation (de)magnetization process of the magnetic field. [0003] When magnetic refrigeration technology works in the near-room temperature region, it has become a research hotspot around the world due to its broad application prospects an...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems existing in the two major types of magnetic refrigerators in the background technology, and to provide a rotary magnetic refrigerator using a continuously rotating active cold storage device and a simple and effective heat exchange channel and its application to overcome the reciprocating Rotary magnetic refrigeration system has shortcomings such as low operating frequency and small cooling capacity, and improved rotary magnetic refrigeration system internal structure, fluid distribution system and external permanent magnet design are complex, system pressure loss is large, and sealing is difficult.

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