РАСЧЕТ СТРУКТУРНЫХ СОСТАВЛЯЮЩИХ ЖИДКОЙ ФАЗЫ В ТЕПЛОМАССООБМЕННОМ АППАРАТЕ С РЕГУЛЯРНОЙ ВРАЩАЮЩЕЙСЯ НАСАДКОЙ

Abstract

The state of development of designs of packed heat and mass transfer devices with irregular and regular stationary nozzles, with movable and regular movable nozzles is analyzed. Shortcomings in the work are pointed out. For devices with regular moving nozzles, the possibility of implementing an in-phase mode of interaction of vortices and taking advantage of the vibration and rotational motion of the nozzle elements has been noted. An experimental study of the structural components of the liquid phase in a heat and mass transfer apparatus with rotating packed elements with rectangular blades was carried out when changing the gas speed and irrigation density, obtained on the basis of photographs processed in the form of graphical dependencies. It is noted that an increase in gas velocity contributes to an increase in the rotation frequency, the power of the resulting vortices and the work they produce. As a result, droplet diameters decrease. With increasing irrigation density, the diameters of the jets and drops increase. This is due to the fact that, at a constant gas flow rate, the influx of an additional volume of liquid leads to heavier packing elements and a decrease in their rotation frequency. Equations for calculating the average thickness and average flow rate of a liquid film are obtained based on an analysis of the forces acting on it. The equation for determining the diameter of liquid jets is based on the wave theory, and using the dissipative approach, an equation is obtained for calculating the volume-surface diameter of droplets.