DEVICE FOR SPRAYING FIRE EXTINGUISHING LIQUID Russian patent published in 2021 - IPC A62C35/00 

FIELD: fire extinguishing.

SUBSTANCE: invention relates to the field of fire extinguishing, namely to devices designed for the use in automatic fire protection systems of mobile quarry equipment, mainly as actuators for cooling highly heated equipment and preventing fire, and as devices for extinguishing fires as part of a combined fire extinguishing system. The device for spraying fire extinguishing liquid includes a sealed case filled with fire extinguishing liquid with a free space above its level, a solid fuel gas generator equipped with exhaust holes is coaxially installed in the upper part of the case, an exhaust nozzle equipped with a bursting membrane is made in the case, and it is also made with the possibility of supplying fire extinguishing liquid to a sprayer; the device is characterized in that a filtration unit in the form of a cavity is made in the bottom part of the case, closed from the outside and communicating with the cavity of the case through a filter mesh, while the exhaust nozzle is made in the upper part of the case and connected to a siphon, the other end of which is combined with the filtration unit to allow liquid to enter the siphon through the filtration unit, and the exhaust outlets of the gas generator are located below the liquid level in the case.

EFFECT: use of the proposed device makes it possible to ensure cooling of the surface of a highly heated heat-intensive object of protection to a temperature lower than the self-ignition temperature of flammable technical liquids, after exposure of high-amplitude vibration and shock loads on the proposed device.

6 cl, 2 dwg