Ultrasonic cavitation intensifying device and ultrasonic cavitation intensifying method

Abstract

The invention relates to an ultrasonic cavitation intensifying device and an ultrasonic cavitation intensifying method. The ultrasonic cavitation intensifying device comprises an energy converter and a gas nucleus source. The energy converter is used for converting electric energy into ultrasonic waves, the ultrasonic waves enter liquid through the radiant surface of the energy converter, and then a sound field is formed in the liquid. The gas nucleus source is used for providing gas nuclei for the liquid, cavitation bubbles are formed in the liquid by the gas nuclei generated by the gas nucleus source and the gas nuclei originally existing in the liquid under the action of the sound field, and cavitation cloud is formed through cavitation bubble gathering. According to the ultrasonic cavitation intensifying device, the gas nucleus source can be placed in an ultrasonic field near the radiant surface of the energy converter, a large number of gas nuclei are continuously generated, the cavitation bubbles are formed by the gas nuclei under the action of the sound field, the cavitation cloud is generated, and therefore the cavitation effect is enhanced.

Description

technical field

[0001] The invention relates to the field of ultrasonic cavitation, in particular to an ultrasonic cavitation strengthening device and method. Background technique

[0002] The cavitation effect of ultrasonic waves refers to the phenomenon that when ultrasonic waves propagate in a fluid, under the action of periodic sound field pressure, a large number of tiny cavitation bubbles appear in the fluid and undergo periodic expansion and collapse movements with the sound pressure. The process of liquid acoustic cavitation is a kinetic process in which the energy of the sound field is concentrated, released rapidly and finally collapsed at high speed. The process time of cavity expansion-collapse is extremely short (between a few nanoseconds and microseconds), and the gas in the bubble heats up sharply after being pressurized. During its periodic oscillation, especially in the process of collapse, instantaneous high temperature, High pressure, and cracks the mediu...

Examples

Embodiment Construction

[0024] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0025] figure 1 It is a schematic diagram of the principle of the ultrasonic cavitation strengthening device in an embodiment of the present invention.

[0026] Such as figure 1 As shown, in this embodiment, the ultrasonic cavitation device includes a transducer 101, a transducer radiation surface 102 and a gas nucleus source 103, wherein:

[0027] The transducer 101 is used to convert electrical energy into ultrasonic waves. Specifically, in this embodiment, the average radiated sound intensity of the preferred transducer 101 is 2-6W / cm 2 , the working frequency is 10kHz-100kHz. Wherein, in this embodiment, it is preferable that the radiating surface of the transducer 101 is smooth without obvious flaws, and no other types of cavitation clouds (such as Smoker, CBS, etc.) adhere to the radiating surface of the tran...

technical field

[0001] The invention relates to the field of ultrasonic cavitation, in particular to an ultrasonic cavitation strengthening device and method. Background technique

[0002] The cavitation effect of ultrasonic waves refers to the phenomenon that when ultrasonic waves propagate in a fluid, under the action of periodic sound field pressure, a large number of tiny cavitation bubbles appear in the fluid and undergo periodic expansion and collapse movements with the sound pressure. The process of liquid acoustic cavitation is a kinetic process in which the energy of the sound field is concentrated, released rapidly and finally collapsed at high speed. The process time of cavity expansion-collapse is extremely short (between a few nanoseconds and microseconds), and the gas in the bubble heats up sharply after being pressurized. During its periodic oscillation, especially in the process of collapse, instantaneous high temperature, High pressure, and cracks the mediu...

Examples

Embodiment Construction

[0024] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0025] figure 1 It is a schematic diagram of the principle of the ultrasonic cavitation strengthening device in an embodiment of the present invention.

[0026] Such as figure 1 As shown, in this embodiment, the ultrasonic cavitation device includes a transducer 101, a transducer radiation surface 102 and a gas nucleus source 103, wherein:

[0027] The transducer 101 is used to convert electrical energy into ultrasonic waves. Specifically, in this embodiment, the average radiated sound intensity of the preferred transducer 101 is 2-6W / cm 2 , the working frequency is 10kHz-100kHz. Wherein, in this embodiment, it is preferable that the radiating surface of the transducer 101 is smooth without obvious flaws, and no other types of cavitation clouds (such as Smoker, CBS, etc.) adhere to the radiating surface of the tran...

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