Studying and substantiation of the method for normalization of airionic regime at industrial premises at the ultrasonic ionization of air

Abstract

We report results of investigations on normalization of the air-ionic mode at premises with ultrasonic ionization of humidified air. We substantiated an increase in the concentration of negative air-ions with complex influence of the balloelectric effect and ultrasonic cavitation. We established that the concentration of negative air-ions increases almost in six times at the use of distilled water as a source of air-ions under the action of an ultrasonic generator with a power of 10 W at a distance of 0.5 m. At the same time, there is no generation of ozone and nitrogen oxides due to the combined influence of ultrasonic cavitation in a surface layer of water and the balloelectric effect. We proved that the concentrations of negative and positive air-ions increase due to changes in physical-and-chemical properties of water and the emerging mechanical-and-chemical phenomena with a decrease in the degree of water mineralization of water.We proposed a mechanism for formation of air-ions in the humidified air of industrial premises under the combined action of the balloelectric effect and ultrasound. We substantiated that improvement in the quality of the air-ionic composition of air in industrial premises takes place at a temperature of demineralized water of 20‒25 °C and a directed airflow of 6 m/s towards a working zone, with the combined action of the balloelectric effect and ultrasound, which improves sanitary and hygienic working conditions. We proposed a structure of an automated control system for the air-ionic mode of a working area of industrial premises under artificial air-ionization with a use of an air-ions generator and a ventilation system. It will make possible monitoring and processing of information on technological, electrical and microclimatic parameters, adjusting, coordination of work and joint managing of devices of a ventilation system and an ultrasonic generator of air-ions