DRENCHER Russian patent published in 2018 - IPC B05B1/26 

FIELD: fire safety.

SUBSTANCE: invention relates to firefighting equipment. Drencher comprises a housing and a spray device. Housing is designed as a central sleeve with an external hexagon and internal cylindrical surfaces. One of the end sides is attached axially symmetrically to an inlet pipe by means of a back nut. Other end side is attached to a spraying element made in the form of a sleeve whose internal diameter is equal to the inlet pipe internal diameter and to which by means of arcs arranged along a conical surface an outlet is attached. Socket is a part of spherical surface confined by inner and outer hemispheres. Center of hemisphere lies on line connecting axis of central sleeve and axis of inlet pipe. At the spherical surface, at least three grooves are formed on its outer side, the axes of which are located on lines radial with respect to the hemisphere. At the peripheral part of the hemisphere, at least three orifice holes are made, the centers of which lie in a plane parallel to the diametral plane of the hemisphere, which is perpendicular to the axis of the inlet pipe. Locking valve is axially symmetric to the spraying element and is made in the form of a ball fixed by a spring, located inside the central sleeve, to a conical surface formed at the end of the inlet pipe, facing the spraying element. At the lateral surface of the central sleeve with an external hexagonal and internal cylindrical surfaces, at least three inclined to the outlet orifice holes are formed, axes of which intersect at a point on the axis of the central sleeve, and an acute angle is made in the plane of the drawing with this axis. Cross section of the arcs located along the conical surface and connecting the sleeve with the outlet is made of a profiled shape, for example helical, to increase the effect of finely dispersed spraying of the foamer solution.

EFFECT: technical result of the invention is to increase the effectiveness of fire extinguishing.

1 cl, 2 dwg