FIRE EXTINGUISHING DEVICE WITH USE OF GAS-LIQUID MIXTURE Russian patent published in 2013 - IPC A62C35/00 

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to fire-fighting. The device for fire-fighting with use of gas-liquid mixture comprises a vessel with fire extinguishing agent, which is attached by the brackets to the premise. The vessel is connected to the gas cylinder and is equipped with a device of discharge of the gas phase with the measuring probe for the fire extinguishing agent. The device of creating a gas-liquid mixture is made in the form of a conical mixing chamber with tangential inlet of gas. Through the flexible hose, gas supply is carried out to the vessel from the starting cylinder through the vortex element which is made in the form of conical perforated spiral. The gas-liquid mixture is directed through the central pipeline to the distribution network with irrigators. The irrigator comprises a housing with a nozzle and a central core. The housing comprises a sleeve rigidly connected to it, in which lower part a nozzle is fixed. The nozzle is made in the form of a two-stage cylindrical sleeve. The core consists of a cylindrical part and a hollow cone, which is mounted with the annular gap relative to the inner surface of the cylindrical sleeve. The annular cavity is formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage. A sprayer is rigidly connected with a screw to the cone in its lower part, which is made in the form of a frontal circular plate which edges are bent in the direction of the annular gap between the nozzle and the hollow cone. On the side surface of the cone the cylindrical orifices of the axis are made, which lie in planes perpendicular to the axis of the cone.

EFFECT: improvement of fire-fighting system high-speed performance.

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