VOLUMETRIC FIRE-EXTINGUISHING APPARATUS Russian patent published in 2002 - IPC

FIELD: fire-fighting equipment. SUBSTANCE: apparatus is made in the form of thermochemical paraaerosol generator, which may be used for volumetric extinguishing in closed and partially enclosed spaces, as well as for localizing burning processes on open areas. Apparatus has combustion chamber with solid and /or liquid, and/or gaseous fuel and igniter, fire extinguishing liquid supply source, reaction chamber arranged behind combustion chamber in housing, mixing chamber with sprayer collector connected to fire-extinguishing liquid supply source, fire-extinguishing liquid overheating chamber and set of nozzles. Apparatus is further equipped with fire-extinguishant generator or gaseous combustion retardant generator positioned in overheating chamber, which is connected at its one side with mixing chamber through baffle-type separator and at its other side with aerosol nozzle unit through receiver. Gaseous combustion retardant is of thermochemical composition. Solid fuel is formed as compressed air foam mixture of powdered magnesium and/or aluminum, and/or alloy of mentioned substances with oxygen-, or fluorine- and/or chlorine-containing oxidizer and specific additive, for example binder and/or combustion catalyst, with metal:oxidizer:specific additive ratio being 10- 40:10-30:1-5, correspondingly. Thermochemical composition is mechanical mixture and/or alloy of ammonium nitrate and ammonium phosphate, and/or ammonium perchlorate, and/or ammonium phosphate, and/or carbonate of amide (carbamide) or compound based on red phosphor, thermal mixture and combustible. EFFECT: increased fire- fighting capacity by reduced consumption of fire-extinguishing substance and improved combustion retarding properties of fire-extinguishant. 3 cl, 2 dwg