FIRE- EXTINGUISHING INSTALLATION Russian patent published in 2013 - IPC A62C35/00 

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to a fire- extinguishing installation in which the fluid is supplied through the cylindrical opening of the nozzle into the diffuser, and from it - into the chamber from which it is supplied under the pressure in two directions simultaneously: first into the spiral outer cavity of the screw, forming the outer rotating fluid flow; and second - into a screw-threaded hole, forming an inner rotating fluid flow, two rotating fluid flows meet at the outlet of the sprinkler, at that one flow, for instance the inner one, rotates in the direction opposite to the outer flow passing along the screw, or may perform passing rotation if the direction of the helical grooves coincide; in the interaction of the rotating flows at the outlet of the sprinkler the additional fragmentation of fluid droplets is carried out due to their impact in the passing or counter-rotating fluid flows (inner and outer), at that the total fine rotating flow at the outlet can have a direction of rotation which is determined by the hydraulic resistance, respective to the inner or outer spiral cavities and screw grooves, and can be fixed in case of the opposite direction of rotation of the flows, and equality of their reduced mass velocities; the screw of the sprinkler can be made of solid materials: tungsten carbide, rubin, sapphire.

EFFECT: increase in the operational speed of the fire- extinguishing system and efficiency of the gas-liquid mixture spraying.