Research parameters of ultrasound processing equipment dispersed in technological environment

Abstract

Effective use of ultrasound in specific manufacturing processes due to the effects of fluctuations in the environment, manifested in the physical and chemical effects and their interaction. The most successful is the use of ultrasound cavitation processing of liquid and liquid-dispersed environments, because they have effectively implemented the mechanism of sound wave energy concentration in low-density high energy density, which is caused by the formation, development and slamming cavitation bubbles. The research on the influence of cavitation on chemical processes in the liquid, the erosion effect of acoustic cavitation, acoustic cavitation the action on biological objects in nature and intensity acoustic noise accompanying cavitation, showed that methods for measuring parameters of acoustic field can be divided into direct and indirect. Direct methods directly measure the cavitation process parameters, such as measurement of pressure that occurs when slamming cavitation bubbles. For indirect methods determined by technological or physical effect of ultrasound cavitation. . The analysis of existing research found that the most promising method of measurement configuration and cavitation field intensity acoustic cavitation process is being implemented using hydrophones. Measurement of sound pressure values were made using measuring hydrophones based on piezoceramic, resulting in the covers piezoelement appear hydrophone potential difference, whose value is proportional to the sound pressure. Measuring the magnitude of the voltage proportional to the sound pressure, was made rms voltmeter values resulting measured voltage is proportional to the pressure not only sound, but also the intensity of ultrasound vibrations. The basic analytical dependences for determination of sound pressure, intensity ultrasound vibrations, radiation impedance made it possible to build a graph showing the cavitation processing technology environments. . Experimentally verified the identity of law ultrasound field distribution in the water and in the technological mix considering its extinction. Research resonant actuators installed emitters that provide quality cavitation treatment mixture is possible only at a specific distance from the radiation. Consideration of the conditions for the creation of technological equipment makes it possible to improve the parameters of cavitation processing of liquid-dispersed environments by minimizing energy costs.