FIRE EXTINGUISHING MODULE WITH DRENCHER HEADS Russian patent published in 2013 - IPC A62C35/00 

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to automatic fixed plants with use of liquid (water) atomised by neutral gas. The fire extinguishing module with drencher heads comprises a housing, a pressure indicator unit, a sprayer. The housing is made of profiled steel strips, in which a cylinder with a siphon tube is vertically mounted. The cylinder is divided by fluid level to liquid and gas volumes, and is filled with extinguishing fluid under pressure of compressed gas. The lock-start gear of the pyrotechnic type is installed at the outlet of the cylinder and is connected via the control unit with smoke detectors, and hydraulically - with a sprayer. The sprayer comprises a hollow body with a nozzle and a central core. The housing with a channel for supplying fluid comprises a sleeve rigidly connected to it, at which lower part a nozzle is fixed. The nozzle is made in the form of a two-stage cylindrical sleeve which is connected by a threaded connection to the central core. The core consists of a cylindrical part and a hollow cone. The cone is mounted with the annular gap relative to the inner surface of the cylindrical sleeve. The annular space is connected to the channel of the housing for supplying fluid. In the lower part of the cone a sprayer is rigidly fixed with a screw, which is made in the form of a frontal circular plate, which edges are bent in the direction of the annular gap. On the side surface of the cone the orifices of the axis are made, which lie in planes perpendicular to the axis of the cone.

EFFECT: increased efficiency of fire extinguishing due to increasing of high-speed performance.