| 摘要 |
FIELD: fire-prevention facilities. ^ SUBSTANCE: to reduce harm done in process of firefighting by group firefighting facilities, a pulsed interrupted compressed air is fed to areas provided on each floor of fire-hazardous structures for storage of fire-extinguishers-sprayers, which are provided in groups of premises, and in process of usage pulse explosive air exhausts are produced, which knock flame tips down. Simultaneously with air exhausts, fire-fighting water-drop injections are carried out, repeated short-lived injections of powder clouds or an air-mechanical foam, and when extinguishing energized objects and equipment - repeated-short-lived injections of a firefighting aerosol. In the device the group firefighting facilities have accessories for production and distribution of explosive pulses of compressed air and hoses with valves for joining with individual firefighting facilities in the form of specified fire-extinguishers-sprayers arranged as capable of producing compressed air exhausts via their nozzles and jointly with them - the specified injections of fire-extinguishing water-drop, powder aerosol clouds, the air-mechanical foam, for which purpose the device is equipped with a switching accessory, arranged as capable of connecting an intake tube after selecting the necessary fire-extinguishing agent to one of fire-extinguisher vessel sections, where the selected substance is placed. ^ EFFECT: reduced harm done in process of fire-extinguishing. ^ 2 cl, 2 dwg |
