DRENCHER Russian patent published in 2017 - IPC B05B1/26 A62C31/02 

FIELD: fire safety.

SUBSTANCE: drencher comprises a casing and a spray device. The casing is made in the form of a central sleeve with an external hexagonal and internal cylindrical surfaces. The internal thread is made on the two end faces of the central sleeve. To one of the end faces, the inlet branch is axially symmetrically fastened by means of a lock nut, and to the other face, a spraying element made in the form of a sleeve whose internal diametre is equal to the inner diametre of the inlet branch and to which a socket, which represents a part of a spherical surface limitied by an inner and outer hemispheres, is attached by means of at least two arcs arranged along a conical surface. The center of the hemisphere lies on the line connecting the axes of the central sleeve and the axis of the inlet branch. On the outer side of the spherical surface at least three grooves are made, the axes of which are located on the radial lines with respect to the hemisphere. At least three throat holes are made in the peripheral part of the hemisphere, 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 branch. A locking valve, which is arranged in the form of a ball and fixed by a spring located inside the central sleeve to a conical surface formed at the end of the inlet branch, which faces the spraying element, is arranged axially symmetrically to the spraying element. In the lateral surface of the central sleeve with the external hexagonal and internal cylindrical surfaces, at least three throat holes inclined towards the socket are made; their axes intersect at a point lying on the axis of the central sleeve and constitute an acute angle with this axis in the plane of the drawing. On the arcs located along the conical surface, axisymmetric to the central sleeve, at least two additional spraying elements are mounted, which are made in the form of an impeller held by thrust washers fixed rigidly on the arcs on the side of the spherical surface of the socket.

EFFECT: increased fire extinguishing efficiency.

1 dwg