DELUGE FIRE-EXTINGUISHING SYSTEM Russian patent published in 2014 - IPC A62C31/02 B05B1/04 

FIELD: fire safety.

SUBSTANCE: in the deluge fire-extinguishing system consisting of a network of main and distribution pipelines, constantly filled with liquid extinguishing agent with the drenchers, it comprises a source of water supply, which is a water tank and a water intake system with a filter and a pump, two automatic water-feeders, and in the main feeding pipeline a signal turbine is mounted, and each of the drenchers comprises a hollow housing with a nozzle and the central core, and the housing is formed with a channel for supplying liquid and comprises a coaxial sleeve rigidly connected with it, with a nozzle fixed at its lower part, made in the form of a cylindrical two-step sleeve, the upper cylindrical step of which is connected through the threaded connection to the central core consisting of a cylindrical part and a conical funnel coaxial to it, mounted with an annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected with at least three radial channels made in a two-step sleeve connecting it to the annular cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindrical step, and the annular cavity is connected to the channel of the housing for supplying liquid, and the conical funnel in its lower part is rigidly attached to a socket in the form of the end circular plate with at least seven radial lobes which are bent towards the annular gap between the nozzle and the funnel, and on the lateral surface of the funnel at least two rows of cylindrical orifices are made with axes lying in planes perpendicular to the axis of the funnel, and in each row there are at least three openings, and in the end circular plate there are at least three conical orifices with an angle at the cone apex lying in the range of up to from 45° to 90°, and on the inner surfaces of the cylindrical orifices formed on the lateral surface of the funnel, there are helical grooves.

EFFECT: improvement of efficiency of fire-extinguishing through the introduction of high-speed elements in the overall chain of automatic fire-extinguishing system.

2 dwg