POWDER FIRE-EXTINGUISHING MODULE Russian patent published in 2006 - IPC A62C35/00 

FIELD: fire-fighting, particularly manually-triggered or distantly-triggered powder fire-extinguishing facilities, which may be used for volumetric and local suppression of sudden inflaming of industrial buildings, storehouses, gasoline storages, garages, offices, cottages and so on.

SUBSTANCE: module comprises body with cavity filled with fire-extinguishing powder. Module also has gas-generation means, provided with powder aeration means, diaphragm pressed to body bottom neck with coupling nut and member, which defines gas-and-powder mixture flow. The gas-generation means has replaceable body made as thin-walled cylindrical case with one end closed with lid fixedly secured to the case. The lid is provided with coaxially arranged connection pipe with through central orifice. Another cylindrical case end is sealed. The powder aeration means is made as flow orifices. Member, which defines gas-and-powder mixture flow, is made as hollow cylindrical nozzle having side surface with tangential inlet orifices located in upper surface part. Upper nozzle end has lesser diameter and is provided with central through orifice. Nozzle end facing gas-and-powder mixture discharge point is provided with collar mating seat made in module body bottom. The coupling nut presses the diaphragm to module body bottom neck by means of figured washer. One nozzle part is arranged in body bottom neck interior, another part is submersed in cavity with fire-extinguishing powder so that each tangential orifice extends into the cavity for height, which is greater than orifice radius, but is smaller than diameter thereof.

EFFECT: increased fire-fighting efficiency without structure complication due to optimization of gas-and-powder mixture flow control, increased uniformity of gas-and-powder mixture concentration distribution over gas-and-powder mixture spray section, increased transportation convenience, prevention of charged module damage during transportation, increased safety of module manipulation and increased structural reliability.

9 cl, 2 dwg