Metal hydride based annular fin type efficient heat storage reactor

Abstract

The invention discloses a metal hydride based annular fin type efficient heat storage reactor which comprises a reactor shell and a heat exchanging fluid pipe, wherein a gas hole allowing hydrogen toenter and exit and a safety valve port are formed in the upper end of the reactor shell; the heat exchanging fluid pipe penetrates to the upper end of the reactor shell from the lower end of the reactor shell; the upper end lower ends of the heat exchanging fluid pipe extend into the external part of the reactor shell; a plurality of annular fin structures are mounted on the part, in the reactor shell, of the heat exchanging fluid pipe at intervals in the axial direction; the diameters of the annular fins are sequentially reduced from top to bottom; a metal hydride powder bed is filled in thereactor shell; and the heat exchanging fluid pipe is connected with the reactor shell in a sealing manner. The metal hydride based annular fin type efficient heat storage reactor solves the problems that during the heat releasing process, the traditional shell-and-tube metal hydride heat storage reactor is lower in output temperature and poorer in heat exchanging performance.

Description

technical field [0001] The invention belongs to the technical field of thermochemical heat storage, and in particular relates to a metal hydride-based ring-fin type high-efficiency heat storage reactor. Background technique [0002] With the continuous progress of society, the demand for energy is getting higher and higher, and the massive combustion of traditional fossil fuels has brought about a series of problems such as environmental pollution and energy shortage. Therefore, the development of new energy sources has become one of the important ways to solve the energy shortage. Solar energy is one of the main renewable energy sources and has received widespread attention. Due to the intermittent and discontinuous nature of solar energy, it is essential to adopt high temperature heat storage technology in solar thermal power plants. Among many high-temperature heat storage materials, Mg-based metal hydrides are known as one of the most potential thermochemical heat stor...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a metal hydride-based ring-shaped fin-type high-efficiency heat storage reactor to solve the traditional problem of metal hydride heat storage reactors used for high temperature heat storage. The heat transfer performance of the shell-and-tube structure is poor and there are problems of non-uniform reaction

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