An ultrasonic microcavity reactor and methods of use thereof

By designing an axially expanding-contracting structure for the ultrasonic microcavity reactor, a "hurricane-shaped" cavitation bubble cluster is formed, solving the problems of uneven cavitation bubble distribution and poor mixing uniformity in existing ultrasonic reactors. This improves the particle size control accuracy and stability of emulsions or nanoparticles, making it suitable for efficient emulsification and nanomaterial preparation in the chemical industry.

CN121623709BActive Publication Date: 2026-06-02CHEM & CHEM ENG GUANGDONG LAB
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHEM & CHEM ENG GUANGDONG LAB
Filing Date
2026-02-05
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing ultrasonic reactors in the chemical industry suffer from problems such as uneven distribution of cavitation bubbles, poor mixing uniformity, low particle size control precision, and insufficient product stability, making it difficult to meet the needs of high-end applications.

Method used

An ultrasonic microcavity reactor is designed, employing an axially expanding-contracting microcavity unit structure to form a "hurricane-shaped" cavitation bubble group, optimizing the sound field distribution and the secondary Bjerknes force between bubbles, thereby improving shear capacity and mixing effect.

Benefits of technology

It achieves a concentrated particle size distribution in emulsions or nanoparticles, resulting in small average particle size, good monodispersity, strong stability, and a shortened emulsification cycle, making it suitable for continuous production.

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Abstract

The present application provides an ultrasonic microcavity reactor, comprising a reactor main body and an ultrasonic wave generating device, the reactor main body is installed in the ultrasonic wave radiation surface of the ultrasonic wave generating device; at least one microcavity unit is arranged in the reactor main body, the microcavity unit is a hollow pipeline structure extending along the horizontal axis, the inner diameter of the cavity of the microcavity unit includes an axial gradually expanding section and an axial gradually reducing section in sequence along the fluid flow direction, the cross-sectional area of the axial gradually expanding section continuously increases from the inlet end to the outlet end, and the cross-sectional area of the axial gradually reducing section continuously reduces from the inlet end to the outlet end. The microcavity unit is designed as a cyclone cavity with axial gradually expanding and gradually reducing structure, so that the hurricane type cavitation bubble group can be formed in the reaction cavity of the ultrasonic microcavity reactor. Compared with the conventional ultrasonic cavitation reactor, the hurricane type cavitation bubble produced by the present application has concentrated sound field distribution, strong shearing capacity and good mixing and emulsification effect.
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