METHOD OF FLUID DISPERSION AND CONTROLLED AEROSOL DISPERSER TO THIS END Russian patent published in 2012 - IPC B05B17/00 

FIELD: process engineering.

SUBSTANCE: invention relates to fluid sprayers to be used in processes that require high-quality dispersion of fluids. Proposed method comprises feeding fluid from pump and air from blower and accelerating said air in nozzle. Then fluid is hydraulically disintegrated into drops in nozzle spray cone and dispersed in the filed of ultrasound air vibrations in air supersonic jet into aerosol. Then, air is fed for final dispersion into supersonic air jet from nozzle main loop. Now aerosol dispersity is adjusted by varying air and fluid flow rates. Fluid axial flow pressure is kept constant. Flow spin maximum rate is kept within preset limits irrespective of preset range of fluid flow rate variation. Besides, aerosol dispersity is adjusted by regulating air flow rate. Reduction in aerosol dispersion in the file of ultrasound air vibrations is compensated by increase in fluid flow spinning at nozzle outlet. Disperser comprise two-circuit adjustable supersonic nozzle communicated with air spraying blower and jet aligned therewith. Said jet makes flow rate regulator communicated via pressure regulator with process fluid feed pump. Besides, disperser comprises nozzle swirler and Hartmann resonator. Nozzle is divided into two circuits. Auxiliary circuit serves for preliminary dispersion of fluid in the field of ultrasound waves generated in air flow by Hartmann resonator. Main circuit serves for final dispersion of fluid by air flow and forcing aerosol out in atmosphere. Disperser design allows adjusting nozzle circuit throat area.

EFFECT: higher quality and efficiency.

2 cl, 1 dwg