FIELD: liquid spraying in production processes. SUBSTANCE: method may be used in production processes which require high-quality spraying, for example, in agriculture and in forestry for dispersion and application of toxic chemicals and other physiologically- active substances including biopreparations (bacterial and virus) to plants for their protection against diseases and insect pests by methods capable of sparing the environment. Liquid flow rate is controlled according to claimed method in atomizer itself. Liquid is accelerated through tangential holes, and its jet is caught. Drops are dispersed by air jets at sound velocity, crushed against air jets at sound velocity, brought out into ultrasonic wave field by centrifugal forces and injected into air jet from supersonic nozzle. Device for forming of monodispersed aerosol cloud includes moving cylindrical sleeve positioned in body. Sleeve is movable in axial direction and is fixed to prevent its turning. Sleeve is plugged at one end and actuated by threaded connection. Space between sleeve and body is divided into liquid and air cavities. End of screw coming out of sleeve carries resonator. Other end of screw is secured and is capable of rotation in body. It is in threaded connection with sleeve which makes the latter movable and allows liquid flow-rate adjustment. Resonator oscillations are transmitted to sleeve through screw and threaded connection. Sleeve in its turn oscillates at resonator oscillation frequency, since it is conjugated with body through elastic seals, and guaranteed radial clearance is provided between it and body. Sleeve oscillations act upon liquid drops. They reduce surface energy of drops and promote dispersion. The method and device make it possible to obtain monodispersed aerosol cloud with a wide range of aerosol dispersion and liquid flow rate. EFFECT: enhanced efficiency. 2 cl, 2 dwg
