Hydrogen storage reactor and system with fin and spiral coil type heat exchanger coupled

Abstract

The invention discloses a hydrogen storage reactor and system with a fin and a spiral coil type heat exchanger coupled, and belongs to the technical field of chemical reactor design. The overall structure of the reactor is a cylindrical shell, and the fin and the spiral coil type heat exchanger subjected to geometric structure optimization are coupled in the shell in an integrated mode, and a heat exchange fluid inlet and outlet pipeline and a hydrogen inlet and outlet pipeline are fixed to the top end and bottom end of the shell respectively. Heat exchange fluid enters the spiral coil type heat exchanger from the center of the top end of the shell, and flows out of the center of the bottom end of the shell, and hydrogen enters the shell through multiple holes channels evenly distributed in the top end of the shell, and reacts with metal hydride. The hydrogen storage reactor and system have the advantages that operation is easy, the structure is compact, hydrogen can be fast dispersed into a bed layer, the heat and mass transfer effect is good, and the hydrogen storage reactor and system are suitable for hydrogen occasions with the large heat effect in the hydrogenation/dehydrogenation reaction process.

Description

technical field [0001] The invention belongs to the technical field of chemical reactor design, relates to a hydrogen storage reactor, in particular to a hydrogen storage reactor and a system coupled with a fin and a spiral coil heat exchanger. Background technique [0002] At present, there are mainly the following categories of metal hydride hydrogen storage reactors with large thermal effects in the hydrogenation / dehydrogenation reaction process at home and abroad: [0003] 1. Heat exchange tube externally wound hydrogen storage reactor - the heat exchange tube surrounds the periphery of the annular cylindrical reactor, the heat exchange fluid enters from the upper side of the reactor, and flows out from the other side of the lower end, and the hydrogen passes through the shell The small hole on the shaft center pipe enters the hydride bed through the filter screen, and gradually reacts with the bed in the radial direction until it is close to the shell edge of the heat e...

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Problems solved by technology

But it also increases the manufacturing process difficulty and cost, and because the heat exchanger tube diameter is small, once the heat exchange fluid has dirt, it is easy to cause blockage (China, CN.201310189618.2)

[0008] 6. Other types of hydrogen storage reactors coupled with U-shaped tube and bow-shaped plate heat exchangers—although these reactors have the characteristics of easy operation, compact structure, and fast reaction rate, their heat transfer effect is relatively general, and processing The process is difficult and the replacement is poor, and it cannot be applied to the actual hydrogen storage industry at present

[0009] It can be seen that there are some defects in the above-mentioned existing various hydrogen storage reactors, and there are limitations in practical industrial applications.

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