Pipeline ultrasonic reactor
A technology for ultrasonic reactors and pipelines, applied in chemical instruments and methods, chemical/physical/physicochemical processes of energy application, chemical/physical/physicochemical processes, etc., which can solve blockages and increase the pressure drop of fluid flowing through pipelines etc. to enhance the mixing effect and avoid clogging
Inactive Publication Date: 2021-02-26
黄颖 +3
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Problems solved by technology
Although the mixing effect of this method is very good, the placement of solid fillers in the pipeline will increase the complexity of the pipeline structure, and at the same time increase the pressure drop of the fluid flowing through the pipeline, and there will be a risk of blockage for reactors with small diameter pipes
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[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0022] A preferred embodiment of a pipeline ultrasonic reactor of the present invention, such as figure 1 and figure 2 As shown, the pipeline ultrasonic reactor includes an ultrasonic generating mechanism 2 and a fluid pipeline 1, the ultrasonic generating mechanism 2 is fixed on the outer wall of the fluid pipeline 1, and the ultrasonic generating mechanism 2 is used to generate ultrasonic waves and conduct the ultrasonic waves through the outer wall of the fluid pipeline 1 into the In the fluid in the fluid pipeline 1. In this embodiment, the ultrasonic generating mechanism 2 may be any one of piezoelectric ceramics, sandwich piezoelectric transducers, and electrostat...
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The invention relates to the technical field of ultrasonic reaction equipment, and discloses a pipeline ultrasonic reactor which comprises a fluid pipeline and an ultrasonic generation mechanism. Theultrasonic generation mechanism is arranged outside the fluid pipeline, a rough surface used for adsorbing bubble nuclei is arranged on the inner wall of the fluid pipeline, the roughness Ra of the rough surface is 1-200 microns, the ultrasonic frequency f generated by the ultrasonic generation mechanism is 10-1000kHz, and the product of the roughness of the rough surface and the ultrasonic frequency generated by the ultrasonic generation mechanism is 0.01-100mm. KHz. The rough surface is arranged on the inner wall of the fluid pipeline, the roughness Ra of the rough surface ranges from 1-200microns, it is extremely easy for the rough surface under the roughness to adsorb and constrain a large number of tiny bubble nuclei, the bubble nuclei form a large number of cavitation bubbles underthe ultrasonic action, and therefore the ultrasonic mixing effect is enhanced. Meanwhile, the friction surface is formed on the inner wall of the fluid pipeline, filler is prevented from being placedin the fluid pipeline, pressure drop caused by increase of complexity of the internal structure of the fluid pipeline is avoided, and blockage in the fluid pipeline caused by fluid is prevented.
Description
technical field [0001] The invention relates to the technical field of ultrasonic reaction equipment, in particular to a pipeline ultrasonic reactor. Background technique [0002] Continuous reactors based on micro-pipes are being widely used in the synthesis of fine chemicals and pharmaceutical materials due to the advantages of fast heat and mass transfer, controllable multiphase flow, process safety, low equipment cost, simple operation, and rapid scale-up. However, these tubular reactors also have problems such as weak convective mixing and easy clogging by solids, especially when the flow rate is relatively low and the flow state does not reach turbulence. [0003] In order to enhance the mixing of fluids in the pipeline, it is common practice to set some mixing structures in the pipeline, such as bending and deforming the pipeline, or arranging static mixing components, baffles, etc. in the pipeline, these mixing structures can cut when the fluid passes The fluid may ...
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IPC IPC(8): B01J19/10B01J19/00
CPCB01J19/10B01J19/0053
Inventor 黄颖张军科范晓梅张琳
Owner 黄颖