FIRE-EXTINGUISHING APPARATUS Russian patent published in 1999 - IPC

FIELD: fire-fighting equipment. SUBSTANCE: apparatus has replacement system started upon delivery of fire signal. High-pressure gas is directed via reducer into heat-exchanging device with following conveyance via pipeline under pressure reduced to replacement pressure to vessels containing fire-suppressing substance. Fire-suppressing substance is replaced from vessels to be delivered to heat-exchanging device for cooling and cooled substance is supplied via pipeline for fire extinguishing. As a result of heat exchange between throttling gas and fire-extinguishing substance in heat-exchanging device, heated gas is supplied to vessels. Such construction allows replacement energy regeneration extent to be increased due to increase of temperature in free volume of vessels. When required, a portion of heated gas may be directed via pipeline for replacing active substance from balloons into pipeline. To obtain combined fire-suppressing compositions or to replace fire-extinguishing substance, replacement system gas may be supplied via pipeline to active substance balloons and further directed via pipeline through heat-exchanger for direct fire-extinguishing or by preliminary mixing with main fire-suppressing substance in pipeline or in special mixer. Foam-generator or doser may be used as mixer. EFFECT: wider operational capabilities and increased efficiency. 1 dwg