ACOUSTIC ATOMISER FOR SPRAYING SOLUTIONS Russian patent published in 2018 - IPC B05B17/06 

FIELD: devices for spraying liquids.

SUBSTANCE: invention relates to devices for spraying of liquids, solutions. Acoustic atomiser for spraying solutions, comprises a housing with jets for supplying a spraying liquid and a spraying agent, inside of which an acoustic generator is arranged in the form of a nozzle and a resonator, made in the form of a sound generator formed by a Helmholtz resonator made in the form of at least one spherical cavity located in the wall of a ring with a conical surface, which is connected to the housing via calibrated gaskets, wherein the spherical cavity of the sound generator is connected by a calibrated hole with an annular gap formed by the end faces of the housing and the ring with a lateral conical surface formed on a hollow rod which is located inside the housing, axially symmetrical thereto, and serves to form the generated spray of the spray liquid entering through the channel of the hollow rod to a screw atomiser, rigidly fixed to the end of the hollow rod and serving to form a liquid film, covering the output of the sound generator formed by the Helmholtz resonator, and the ring with a lateral conical surface formed on the hollow rod is arranged to be fixedly movable along the axis of the body by means of a threaded connection that connects the body to the ring via calibrated gaskets, wherein the Helmholtz resonator is made to control the generated frequency of the acoustic vibrations by adjusting the width of the annular gap, formed by the end faces of the housing and the ring, by installing between the housing and the ring with a conical surface of calibrated gaskets, the thickness of which corresponds to a specified frequency of acoustic vibrations, in the lower part of the housing of the screw atomizer, an additional disc atomizer consisting of a thread bush with a central hole connected to the plane of the rod by means of a calibrated hole, top disc rigidly connected to the threaded sleeve with a central hole and a lower solid disc connected to the upper disc by means of at least three fasts to form restrict split between the discs, is fixed, wherein an external diffuser is coaxially attached to the lower part of the atomiser body, to the ring, and an internal perforated diffuser is attached to the conical surface of the screw atomiser so that the output sections of the external and internal diffusers lie in the same plane perpendicular to the axis of the screw atomiser, additional flow divider, made in the form of a cylindrical shell, at the end part of which a perforated plate is fixed on the side opposite the diffuser, is coaxially attached to the external diffuser.

EFFECT: increased liquid spraying efficiency.

1 cl, 1 dwg