PLANT FOR FOAM SUPPLY INTO FIRE ZONE Russian patent published in 2012 - IPC A62C31/00 

FIELD: fire safety.

SUBSTANCE: invention relates to automatic fire-fighting plants. A plant for foam supply into a fire zone comprises a body with supply and drencher chambers, separated with a seat, a cover with a booster chamber. In the chamber there is a main slide, comprising a membrane jammed between the body and the cover, a plate and a bushing with an opening. The control slide is connected to a drive and is installed separately from the main slide. The supply chamber is placed inside the drencher one, at the outlet of which there are foam generators fixed. The outlet from the supply chamber is arranged in the form of a seat. The supply and booster chambers are additionally connected to each other by a calibrated opening. The foam generator comprises a body, distributing and guiding devices. The body is made in the form of a pipe, to one end of which a pump set is connected, and at the other end there is a conical nozzle. On the nozzle there is a generating element installed from a net arranged in the form of a rotary ellipsoid. On the body there is a foaming solution distributor arranged in the form of a package of alternating throttling orifices. There are openings connected to each throttling orifice and arranged at the angle of 120° to each other. Between throttling orifices there are perforated conical discs connected accordingly with bushings installed on the body, at the same time on peripheral surfaces of the perforated discs there is a diffusor installed, made of a generating net.

EFFECT: higher efficiency and reliability of plant operation due to application of foam generators, and also simplified design.

1 cl, 2 dwg