METHOD AND DEVICE FOR SPRAYING LIQUID Russian patent published in 2000 - IPC

FIELD: spraying devices; humidification, air-conditioning and fire-fighting systems; treatment of molded articles made from concrete and reinforced concrete. SUBSTANCE: method consists in additionally forming the cortex cords and/or swirling flooded jets in vertex chamber by passing the liquid flow through grooves made on lateral surface and/or projecting portion of screw feeder and/or outlet section of spraying device housing narrowing in way of flow of liquid. All grooves additionally forming these vortex cores and/or swirling flooded jets in swirling flow of vortex chamber are directed towards swirling of outlet nozzle and/or towards its axis and/or at shift relative to this axis. Liquid spraying device has outlet section of housing narrowing in way of motion of liquid flow and/or outlet nozzle which are made in form of metal bush pressed in base of outlet section of housing and/or grounding circuit or stabilized voltage source are connected with outlet nozzle by means of electric conductor; cone of taper projection of swirler has ratio of diameter of upper part of truncated cone ((d₁)) to diameter of outlet nozzle d_out and ratio of distance from projection to outlet (1) to diameter d_out changing from 0.5 to 5.0. Widening circular slot is formed along lateral surface of swirler projection. EFFECT: enhanced reliability of spraying due to forming additional vortex cords and/or swirling flooded jets in vortex chamber; effective relationship of geometric sizes of projection and electrical connection of outlet nozzle with grounding circuit or stabilized voltage source; reduced power requirements. 3 cl, 3 dwg