GENERATOR OF POLYDISPERSITY FOAM Russian patent published in 2010 - IPC A62C31/12 

FIELD: fire-fighting equipment.

SUBSTANCE: invention relates to fire prevention and is intended for use in automatic fire extinguishing systems by generating polydisperse foam of high expansion rate in a smoke room by blocking quick-burning products with high expansion polydisperse foam. In the foam generator housing is designed as a cylindrical tube with the main hole. One end of pipe is to connect to the pump installation. At the other end of the pipe conical nozzles with the diffuser is installed, ending with throttle opening. On the nozzle generating element of the grid is installed, made in the form of an rotation ellipsoid. From the side of solution supply on the foam generator casing dispenser of foam solution is installed made as a package of alternating throttle orifice. Throttle openings with a tilt toward generating element are made in the washers, connected respectively with the holes in the casing. With each of the throttle orifice at least three holes are connecred that lye in a plane perpendicular to the axis of the casing, and placed at an angle of 120° to each other. Washers are installed between the throttle perforated conical discs, connected respectively with sleeves, mounted on the casing. On the peripheral surfaces of perforated discs diffuser, made of mesh generator grid is installed.

EFFECT: improving the efficiency of spraying fire-extinguishing foam concentrate liquid solution.

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