A microchannel reactor with energy storage structure

Abstract

The invention discloses a microchannel reactor with an energy storage structure, which comprises an upper heating plate, a lower heating plate and a microchannel reaction plate arranged between the two, and the inside of the upper heating plate and the lower heating plate are filled with thermal fluid ; The microchannel reaction plate is a hollow cavity structure, and a microchannel reaction tube is arranged inside it. The microchannel reaction tube is formed by splicing several trapezoidal tubes, and the connection between the two trapezoidal tubes is provided with an inwardly protruding card. A foot, one end of the clip foot is integrally formed with a restrictor plate extending into the tube. The internal heat transfer of the reactor is uniform, which can ensure that the microchannel reaction plate is heated evenly, and has an energy storage layer, which can reduce energy loss. fully carried out.

Description

technical field [0001] The invention relates to the technical field of microchannel reactors, in particular to a microchannel reactor with an energy storage structure. Background technique [0002] A microchannel reactor is a three-dimensional structural element that can be used for chemical reactions and is fabricated from a solid matrix by means of special micromachining techniques. Microchannel reactors generally contain small channel sizes (less than 500 [mu]m in equivalent diameter) and a multiplicity of channels in which fluids flow and where desired reactions are required to take place. This leads to very large surface area / volume ratios in microstructured reaction devices. [0003] When the existing microchannel reactor is used, it is necessary to heat the upper and lower ends of the microchannel reaction plate or the left and right ends, and the heat transfer generally adopts the way of thermal fluid circulation. The existing microchannel reactor is introduced from...

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Problems solved by technology

[0003] When the existing microchannel reactor is used, it is necessary to heat the upper and lower ends of the microchannel reaction plate or the left and right ends. The heat transfer generally adopts the way of thermal fluid circulation. The existing microchannel reactor is introduced from the outside. The heat transfer medium requires The relatively long external pipeline leads to relatively large energy loss, requires a large amount of heat transfer fluid, and has a large load on heat exchange equipment

Moreover, the existing microchannel reactors do not have an energy storage structure. When the reaction heat release or heat absorption is large, the flow rate of the heat exchange medium is required to be relatively fast, which increases the load on the heat exchange equipment.

When the flow rate of the heat exchange medium is slow, the generated heat cannot be quickly and promptly discharged, resulting in large fluctuations in the reaction temperature, reducing the selectivity of the target product, and producing more by-products

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