Spiral pipe type microwave reactor

Abstract

The invention relates to the technical field of reaction devices, in particular to a microwave radiation reaction system. The microwave radiation reaction system comprises a microwave excitation cavity, a compression excitation cavity, a positioning rack, a spiral pipe and a microwave source, wherein the compression excitation cavity is formed in the microwave excitation cavity, the positioning rack is arranged between the microwave excitation cavity and the compression excitation cavity, the spiral pipe is installed on the positioning rack, and a solution inlet and a solution outlet are formed in the two ends of the spiral pipe. The solution inlet and the solution outlet are formed in the outer wall of the microwave excitation cavity, and a plurality of microwave sources are arranged on the outer wall of the microwave excitation cavity. The spiral pipe type microwave reactor has the advantages that the electric field intensity and uniformity are improved through the structure, the irradiation time is prolonged, the reaction time is prolonged, and the reaction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of reaction equipment, in particular to a microwave radiation reaction system. Background technique [0002] At present, microwave-assisted reaction technology has been widely concerned by scientists, and some microwave reaction equipment is also sold in the market. Microwave combined with chemistry forms microwave chemical reaction, which has the advantages of simpler process flow and shorter processing time than conventional reaction technology, but because different solutions have different dielectric constants, microwave penetration in the solution is different, microwave technology in the reactor Apps failed to go mainstream. [0003] In civil industrial applications, microwave magnetrons are mainly used in 915MHz and 2450MHz. The 915MHz magnetron has high power, long microwave wavelength, and deep penetration, but the price is high; 2450MHz has low power, short wavelength, and shallow microwave penetr...

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Problems solved by technology

[0005] Current problems: 1. Different solutions have different absorbing abilities to microwaves, resulting in different penetration abilities of microwaves to solutions, resulting in uneven distribution of microwave radiation field in solutions

[0006] 2. The electric field intensity in the microwave excitation cavity is low and unevenly distributed, which greatly reduces the efficiency of microwave and increases energy consumption

[0007] 3. The solution stays in the microwave excitation chamber for a short time and cannot fully react

[0008] 4. Existing microwave reaction technology cannot be applied to reactions with large flow rates

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