Magnesium hydride solid hydrogen energy storage system and method for improving hydrogen storage and release efficiency

A magnesium hydride and hydrogen energy storage technology, applied in the production of hydrogen, reversible absorption of hydrogen, etc., can solve the problems of not focusing on the important role of temperature, and achieve the effect of increasing heat conduction, increasing reaction rate, and increasing heat exchange area

Pending Publication Date: 2021-07-23
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
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  • Claims
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Problems solved by technology

[0007] However, the design of this technical solution did not focus on considering that temperature plays an important role in the metal hydride porous medium layer and hydrogen reaction process

Method used

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  • Magnesium hydride solid hydrogen energy storage system and method for improving hydrogen storage and release efficiency
  • Magnesium hydride solid hydrogen energy storage system and method for improving hydrogen storage and release efficiency
  • Magnesium hydride solid hydrogen energy storage system and method for improving hydrogen storage and release efficiency

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0046] Such as Figure 1 to Figure 5 As shown, a magnesium hydride solid-state hydrogen energy storage system of the present invention includes a hydrogen storage and discharge tank and an external cold and hot fluid storage tank.

[0047] The hydrogen storage and discharge tank is radially outward from the center and is sequentially composed of a magnesium hydride porous medium hydrogen storage layer 1, a liquid cooling layer 2, a vacuum layer 3 and an insulation layer 4, wherein:

[0048] The magnesium hydride porous medium hydrogen storage layer 1 is provided with an air guide pipe 6 shared by the import and export of hydrogen, a heat conduction pipe 13 and an internal temperature measurement point 11, the air guide pipe 6 is connected with a hydrogen storage and discharge pipeline, and a pump 5, Valve 10, flow meter 9 and p...

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Abstract

The invention discloses a magnesium hydride solid hydrogen energy storage system and a method for improving the hydrogen storage and release efficiency. The magnesium hydride solid hydrogen energy storage system comprises a hydrogen storage and release tank and an external cold and hot fluid storage tank. The hydrogen storage and release tank sequentially comprises a magnesium hydride porous medium hydrogen storage layer, a liquid cooling layer, a vacuum layer and a heat preservation layer from the center to the outside in the radial direction; a gas guide pipe shared by a hydrogen inlet and a hydrogen outlet, a heat conduction pipe and an internal temperature measurement point are arranged in the magnesium hydride porous medium hydrogen storage layer; the gas guide pipe is connected with a hydrogen storage and release pipeline; a pump, a valve, a flow meter and a pressure meter are arranged on the hydrogen storage and release pipeline; the lower part of the liquid cooling layer is connected with a hot fluid outlet; a cold fluid inlet and the hot fluid outlet are connected to an external cold and hot fluid storage tank through liquid inlet and outlet pipelines; and the vacuum layer is connected with a vacuumizing pipe. The reaction temperature is controlled within the optimal range through the liquid cooling layer, and the reaction rate is increased.

Description

technical field [0001] The invention relates to the field of hydrogen fuel cells, in particular to a magnesium hydride solid hydrogen energy storage system and a method for improving hydrogen storage and discharge efficiency. Background technique [0002] In the process of human development, the excessive pursuit of economic benefits has caused climate warming and environmental pollution. With the increasingly significant impact of climate change and environmental pollution on human survival and development, how to increase the proportion of clean and low-carbon renewable energy and realize the transformation of energy structure has become one of the important challenges in the energy transformation. A very important development goal and task in the 14th Five-Year Plan is to increase efforts to expand the clean energy industry and lay a solid foundation for the goal of achieving 20% ​​of non-fossil energy in primary energy consumption by 2030. Hydrogen is the most common el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/02
CPCC01B3/0005Y02E60/32
Inventor 王为术徐维晖张向薪赵世飞王春兰姚紫琨岳晓明郑晓杰亓月欣尚梦源翟禹鑫王涵甄娟王飞跃牛靖尊
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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