Metal-hydride ultralow-temperature cyclic working system

Abstract

The invention relates to a Metal-hydride ultralow-temperature cyclic working system. The Metal-hydride ultralow-temperature cyclic working system comprises a protection cover, a metal hydrogen-storagematerial reaction bed B1, a metal hydrogen-storage material reaction bed B2, a hydrogen heat exchanger, a heat exchanger, an air heat exchanger, a hydrogen expansion machine and a liquid-hydrogen high-pressure pump, wherein the metal hydrogen-storage material reaction bed B1, the metal hydrogen-storage material reaction bed B2, the hydrogen heat exchanger, the heat exchanger, the air heat exchanger, the hydrogen expansion machine and the liquid-hydrogen high-pressure pump are arranged in the protection cover. The metal hydrogen-storage material reaction bed B1 and the metal hydrogen-storage material reaction bed B2 are connected with the hydrogen expansion machine through a shell side of the hydrogen heat exchanger and a shell side of the air heat exchanger respectively, and a hydrogen medium returns to the metal hydrogen-storage material reaction bed B1 and the metal hydrogen-storage material reaction bed B2 through a tube side of the hydrogen heat exchanger and a tube side of the heat exchanger. By using the characteristics of hydrogen absorption and hydrogen desorption of a metal hydride, the expansion machine is driven to work.

Description

technical field [0001] The invention belongs to the technical field of energy comprehensive utilization, and relates to a metal hydride ultra-low temperature cycle work system. Background technique [0002] Energy shortage, environmental pollution, and global climate change make it urgent to develop clean, efficient, safe and sustainable energy, among which hydrogen energy is being valued by more and more countries. In the 21st century, the engine industry has developed rapidly, but gasoline engines and diesel engines are still the main choices of engines. Gasoline and diesel are non-renewable resources. In order to alleviate a series of negative effects brought about by the shortage of petroleum resources, as well as reduce air pollution and engine exhaust emissions, it is necessary to find alternative fuels for engines, and hydrogen energy is currently the most ideal clean fuel. . With the increasingly stringent environmental protection measures around the world, hydroge...

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Problems solved by technology

Traditional hydrogen energy utilization mostly obtains thermal energy and kinetic energy by directly burning gaseous hydrogen, but gaseous hydrogen is not easy to store and transport, and the hydrogen energy obtained from combustion is directly used in the power system, which will cause a series of problems that affect safe use, such as knocking and instability.

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