Ultrasonic cavitation cloud control device and ultrasonic cavitation cloud control method

A control device and cavitation cloud technology, applied in the field of acoustic cavitation, can solve the problems that limit the large-scale industrial application of sonochemistry, pollution, etc., and achieve the effect of effective control and precise control of shape and position

Inactive Publication Date: 2014-06-04
INST OF ACOUSTICS CHINESE ACAD OF SCI
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Problems solved by technology

Large-scale industrial applications of sonochemistry are limited due to possible contamination of the treated liquid by debris from cavitation erosion on the radiating surface of the transducer

Method used

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  • Ultrasonic cavitation cloud control device and ultrasonic cavitation cloud control method
  • Ultrasonic cavitation cloud control device and ultrasonic cavitation cloud control method
  • Ultrasonic cavitation cloud control device and ultrasonic cavitation cloud control method

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Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are further described in detail below through the accompanying drawings and embodiments.

[0036] Effective control of the position and shape of cavitation clouds in the ultrasonic field has always been a difficult bottleneck for cavitation applications in the industrial field. In our experiments, we found that Jet-induced bubble structures (JBS) cavitation clouds have good controllability. Based on the research on ultrasonic frequency, power, radiation area, jet direction, flow velocity, nozzle diameter, and water quality, we have gradually established a device and method for controlling cavitation clouds as described in the present invention, and have been able to Using the device and method to form cavitation cloud letters shows that the device and method have better control over the cavitation cloud or the spatial dis...

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Abstract

The invention relates to an ultrasonic cavitation cloud control device and an ultrasonic cavitation cloud control method. The ultrasonic cavitation cloud control device comprises an energy converter, a diverter, a regulating valve, a branch pipe and a nozzle. The energy converter is used for converting electric energy into ultrasonic waves, and a sound field is formed through the ultrasonic waves via the radiant surface of the energy converter. The diverter is used for diverting the received water flow comprising gas nuclei. The regulating valve is communicated with the diverter and used for adjusting the flow rate of the water flow diverted by the diverter. The branch pipe is communicated with the regulating valve and used for conveying the water flow. The nozzle is communicated with the branch pipe and used for spraying the water flow to the radiant surface. Cavitation bubbles are formed by the gas nuclei in the water flow under the action of the sound field, and cavitation cloud is formed through cavitation bubble gathering. The nozzle is used for controlling the shape of the calvitation cloud by adjusting the flow rate and direction of the water flow sprayed to the radiant surface. The ultrasonic cavitation cloud control device and the ultrasonic cavitation cloud control method can precisely control the ultrasonic cavitation cloud easily and conveniently.

Description

technical field [0001] The invention relates to the technical field of acoustic cavitation, in particular to an ultrasonic cavitation cloud control device and method. Background technique [0002] The cavitation effect of ultrasonic waves refers to the phenomenon that when ultrasonic waves propagate in the fluid, under the action of the periodic sound field pressure, a large number of tiny cavities appear in the fluid and undergo periodic expansion and collapse with the sound pressure. The process time of cavitation expansion-collapse is extremely short (between several nanoseconds to microseconds). When the cavitation collapses, instantaneous high temperature and high pressure will be generated inside the cavitation, and the medium at the liquid interface in the inner core of the bubble will be cracked. This characteristic of ultrasonic cavitation provides a unique environment for some chemical reactions, enabling some chemical reactions that are difficult to occur at norma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/12B01J19/10
CPCB01J19/10B08B3/12
Inventor 白立新邓京军李超徐德龙
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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