PNEUMATIC SPRAY NOZZLE FOR SPRAYING LIQUIDS Russian patent published in 2018 - IPC B05B1/34 A62C31/02 

FIELD: devices for liquid atomization.

SUBSTANCE: invention relates to equipment for liquid atomization and can be used in fire fighting, agriculture, chemical industry and heat power engineering. In pneumatic nozzle for spraying liquids containing a hollow housing with a nozzle and a central core, housing is made with an air supply channel and contains coaxial, rigidly coupled with housing bushing with a nozzle fixed at its lower part, made in the form of a cylindrical two-stage bushing, upper cylindrical stage of which is connected by a threaded connection to a central cylindrical core having a through inner central hole and installed with an annular gap with respect to an inner surface of the cylindrical bushing, and the annular gap is connected to at least three radial channels formed in the two-stage bushing connecting it to an annular cavity formed by the inner surface of the bushing and an outer surface of the upper cylindrical stage, wherein the annular cavity is connected to a channel of the housing for supplying air under pressure. In the upper part, the central cylindrical core is coaxially connected to the liquid supply tube, the diameter of the inner cavity of which is equal to the diameter of the through inner central hole, and in the lower part of the central cylindrical core a hollow conical swirler is fixed, the conical shell of which is fixed by means of at least three spokes fixed with one end on the conical shell of the swirler in its upper part, and by other end is in annular groove, made on central cylindrical core inner surface, wherein hollow cone swirler outer surface helical thread is made.

EFFECT: higher efficiency of liquid atomization.

3 cl, 1 dwg