NOZZLE FOR SPRAYING OF LIQUIDS Russian patent published in 2009 - IPC F23D11/16 

FIELD: technological processes.

SUBSTANCE: invention is related to procedure of spraying of liquids, including viscous ones and containing abrasive inclusions, and may be used in different fields of production activity, in particular in different fuel-burning devices. Nozzle for spraying of liquids contains body with central channel of fuel supply and coaxial annular channel of spraying agent supply, connected to displacement chamber, and also annular row of radial nozzles of primary sprayer and annular row of radial nozzles of secondary sprayer, which are connected at the inlet to coaxial annular channel of spraying agent supply, and at the outlet - to mixing chamber. Mixing chamber is arranged of conic shape, outlet cuts of radial nozzles of primary sprayer are located from horizontal axis of body at the distance that exceeds their diametre 4-10 times, and are directed at angle α to the point of crossing of horizontal and vertical axes of nozzle body at cut of mixing chamber, longitudinal axes of nozzles are located from outlet cut of central channel for liquid supply at the distance that exceeds their diametre 4-15 times, along circumference at the outlet of mixing chamber there are nozzles of secondary sprayer installed, besides nozzles of secondary sprayer are installed at the angle of δ≥15° relative to vertical axis of nozzle and at the angle of φ≥15° relative to its plane.

EFFECT: makes it possible to increase efficiency of pneumatic spraying nozzles by reduction of spraying agent flow, elimination of abrasive wear of working mixing chamber, improved sawing property relative to viscous liquids and control of spraying geometry in wide range of sawed liquid flow.

2 cl, 2 dwg