DRENCHER Russian patent published in 2016 - IPC A62C31/02 

FIELD: fire safety.

SUBSTANCE: invention relates to firefighting equipment. Drencher comprises housing and spray device. Housing is designed as a central hub with an external hexagon and an internal cylindrical surface. To one of end sides by means of lock nut is secured supplying branch and to other-sprayer. Sprayer is composed of sleeve, to which by means of arches is fixed a socket. Socket is part of spherical surface confined by inner and outer hemispheres. Grooves are made on spherical surface. In peripheral part of hemisphere there are orifices. Axially symmetric to spray element there is a blocking valve made in form of a ball fixed by a spring located inside central sleeve. In side surface of central bushing there are orifices inclined towards outlet, axes of which intersect at point located on axis of the central bushing, and make acute angle to said axis in plane of drawing. Cross-section of arches is shaped as a screw, to increase effect of fine spraying of foaming agent solution.

EFFECT: technical result is high efficiency of fire extinguishing.

1 cl, 1 dwg