METHOD OF VOLUME FIRE EXTINGUISHING AND DEVICE FOR ITS EMBODIMENT Russian patent published in 1999 - IPC

FIELD: fire-fighting techniques and equipment. SUBSTANCE: method includes introduction into protected volume of preliminarily oxidized, cooled and filtered gas-aerosol mixture with solid phase particles sizing 1-2 mcm formed in combustion of pyrotechnic composition, final oxidation of combustion products in layer of sorbent with oxygen-containing oxidizer in form of potassium nitrate. Device for embodiment of claimed method consists of body with outlet opening accommodating combustion chamber with pyrotechnic composition, initiating device and sorbent with oxygen-containing oxidizer. Located above combustion chamber is cooling unit made in form of metal unit with holes or, at least, two thick-walled pipes above which partitions are installed. Space between partitions is filled with filtering sorbent. Invention may be used for extinguishing of fires in various types of structures and devices without harmful effect on man, living organisms, nature, high-accuracy instruments and devices. EFFECT: ecologically clean efficient extinguishing of fires. 8 cl, 2 dwg, 1 tbl