Tandem type magnetic refrigeration system

A magnetic refrigeration, series-type technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of inability to generate cold capacity, inability to start directly with multi-layer magnetic regenerators, inability to exert magneto-caloric effects, etc., to achieve reduction The effect of filling layers, reducing the difficulty of production process and saving cost

Pending Publication Date: 2022-04-01
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] In view of this, it is necessary to provide a magnetic refrigeration system, because when the Curie temperature difference of the multilayer magnetothermal working medium is large, the magnetocaloric working medium layer whose Curie tempera

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  • Tandem type magnetic refrigeration system

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[0025] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings , is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientati...

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Abstract

The invention provides a tandem type magnetic refrigeration system which comprises n magnets, n magnetic regenerators arranged corresponding to any magnet, electromagnetic valves arranged between the adjacent magnetic regenerators, a low-temperature end heat exchanger, a high-temperature end heat exchanger and a hydraulic piston pump, and n is an integer larger than 1. According to the tandem type magnetic refrigeration system, through graded starting of the magnetic refrigeration system, the needed large temperature span is achieved through few kinds of magnetic heating working media, the number of magnetic heating working medium materials is reduced, the number of filling layers of the magnetic heating working media is reduced, the difficulty of the magnetic heating working medium production technology is reduced, cost is saved, and reliability is improved; in addition, when the Curie temperature difference value of the multiple layers of magnetocaloric working media is large, the magnetocaloric working medium layers with the Curie temperature greatly deviating from the environment temperature can exert the magnetocaloric effect and generate cooling capacity, and the magnetocaloric working medium layers cannot serve as heat capacity loads.

Description

technical field [0001] The invention relates to the technical field of magnetic refrigeration, in particular to a serial magnetic refrigeration system. Background technique [0002] As a new type of solid-state refrigeration technology, magnetic refrigeration system has gradually attracted people's attention due to its environmental protection and potential high efficiency. [0003] The magnetocaloric effect is a thermal effect in which the temperature of the magnetocaloric working medium increases when it enters the magnetic field, and the temperature decreases when it is removed from the magnetic field. Materials with this thermal effect are called magnetocaloric working fluids, and magnetocaloric working fluids usually have the strongest magnetocaloric effect near their Curie temperature. The Curie temperature refers to the temperature at which the spontaneous magnetization in a magnetic material drops to zero, and is the critical point at which a ferromagnetic or ferrim...

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Application Information

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IPC IPC(8): F25B21/00F25B41/20F25B49/00
CPCY02B30/00
Inventor 沈俊海鹏李珂李振兴戴巍高新强李赛飞
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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