SPRAYER FOR THE GAS-WATER FIRE EXTINGUISHING SYSTEM Russian patent published in 2018 - IPC B05B1/26 A62C31/02 

FIELD: fire safety equipment.

SUBSTANCE: invention relates to firefighting equipment. Sprayer of the gas-water fire-extinguishing system contains a body and a spray device. Housing is designed as a central sleeve with an external hexagon and internal cylindrical surfaces. To one of the end sides is asymmetrically fastened by means of a lock nut a supply pipe, and to the other – a spraying element made in the form of a bushing. Socket is attached to the hub by means of arcs arranged along a conical surface, which is a part of the spherical surface bounded by the inner and outer hemispheres. At the spherical surface, from its outer side, at least three grooves are made, whose axes are located on the radial lines with respect to the hemisphere. Peripheral part of the hemisphere comprises at least three choke holes. Asymmetrically to the spraying element is located a blocking valve that 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 supply pipe, facing the spraying element. At the side surface of the central sleeve with an external hexagonal and internal cylindrical surfaces at least three inclined throttling openings are provided. Sprayer is also equipped with an automatic gas supply system that is triggered when a fire hazard arises and initiates excess pressure from the main pipeline at pressure of 4÷10 atmospheres, consisting of a displacement sensor connected to a signal amplifier entering the signal processing system, where an analysis of the incoming signals is made, that are transmitted to the unit via the communication line, designed to start the gas supply system from an automatic microprocessor station, built into the gas supply line. Cross section of the arcs, located along the conical surface and connecting the sleeve with the socket, is made profile, for example screw, to increase the effect of finely dispersed spraying of the foamer solution. Tilted to the outlet socket the throttling holes made in the side surface of the central sleeve with external hexagonal and internal cylindrical surfaces, are made with a screw thread. Direction of the screw thread in the throttle openings is made with alternating left and right directions.

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

1 cl, 1 dwg