Metal hydride reactor

Abstract

The invention provides a metal hydride reactor. The metal hydride reactor comprises multiple layers of reaction beds, and each layer of the reaction beds is provided with an upper layer structure anda lower layer structure in the superposition direction of the multiple layers of the reaction beds; the lower layers are composite material layers, and the composite material layers contain hydrogen storage alloys and / or metal hydride; the upper layer are heat conduction layers, and the heat conduction layers are used for absorbing heat generated by a reaction of the hydrogen storage alloys and hydrogen or providing heat for the reaction of the metal hydride; and a gap are formed between every two adjacent layers of the reaction beds, and hydrogen channels for conveying the hydrogen are formedin the gaps. According to the metal hydride reactor, a structure with the multiple layers of the reaction beds is arranged, the multiple hydrogen channels for conveying the hydrogen are further arranged, so that the circulation range of the hydrogen is enlarged, contact between the hydrogen and the hydrogen storage alloy and / or the metal hydride in the composite material layers is more sufficient, and reaction efficiency of the metal hydride is improved.

Description

technical field [0001] The invention relates to the field of industrial heat exchange, in particular to a metal hydride reactor. Background technique [0002] Some metals have a strong ability to capture hydrogen. Under certain temperature and pressure conditions, these metals can absorb a large amount of hydrogen, react to form metal hydrides, and release heat at the same time. Thereafter, if these metal hydrides absorb a certain amount of heat, they will decompose again, releasing the hydrogen stored in them. Therefore, metal hydrides can be used for refrigeration or heating. This device that utilizes the reaction of metal and hydrogen for refrigeration or heating is called a metal hydride reactor. [0003] The current metal hydride reactor is mainly a cylindrical tubular reactor, the outer layer of the reactor is a metal hydride layer, and the central pipe flows through the heat exchange medium to export the heat / cold generated by the reaction. The heat transfer area of...

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Problems solved by technology

[0003] The current metal hydride reactor is mainly a cylindrical tubular reactor, the outer layer of the reactor is a metal hydride layer, and the central pipe flows through the heat exchange medium to export the heat / cold generated by the reaction. The heat transfer area of ​​the heat medium is small and the heat transfer capacity is poor

In addition, the cylindrical tubular reactor also includes a reactor in which the metal hydride alloy is located in the center of the cylinder, and the heat exchange medium is located outside the metal hydride alloy. Due to the small surface area of ​​the metal hydride alloy, this reactor cannot fully contact with hydrogen, so low reaction efficiency

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