FIRE EXTINGUISHING EQUIPMENT AND FIRE SUPPRESSION NOZZLE Russian patent published in 2010 - IPC A62C31/02 B05B1/34 

FIELD: medicine; fire extinguishing equipment.

SUBSTANCE: device is equipped with two-stream fire suppression nozzle, which includes the lateral and central manifold, water pump (P) connected with a source of fire extinguishing liquid, with the water tank (W1) in particular, auxiliary tank (W2), which includes dosing system of foaming agent in particular and is connected to water pump contour (P), compressor (S) and two-line fire hose, which a water line is connected to the side collector and pressure side of water pump and a gas line is connected to a central manifold and compressor the invention is characterised by the valve system for connecting a water pump with a gas line of fire hose, and for connecting the foam mixer and gas line with contour of the compressor the outlet of the fire extinguishing nozzle is equipped with no less than one internal gas nozzle of convergent-divergent profile and internal gap for water pumping, having an annular cross-section formed with sleeve (4), that is located coaxially around the internal gas nozzle fire extinguishing nozzle has a double-flow (7), which includes water and gas collector, the internal gas nozzle with convergent-divergent profile and internal gap for water pumping having an annular cross-section formed with sleeve (4) that is located coaxially around the internal gas nozzle internal gap for water pumping formed with sleeve (4) has a water nozzle at the outlet the internal gap for water pumping formed by sleeve (4), at its outlet has a water nozzle inclined at 0-45 degree preferably converging towards the axis of the internal gas nozzle and sleeve (4) constitutes the internal part of the second gas nozzle (2) with convergent-divergent profile and annular cross-section, that is located coaxially of the internal gas nozzle.

EFFECT: invention is characterised by another version of the nozzle and provides extinguishing of fire of different classes with the use of differentiated media fire extinguishing.

15 cl, 6 dwg