JET TYPE FOAM GENERATOR 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. A case of foam generator consists of input pipeline with main line inlet from one side and a stopper from another side. A solid flange is perpendicularly attached to the pipeline near the mainline inlet. A cylindrical shell is attached to the flange with a at least three spokes, connected with at least three spokes with a perforated disc, rigidly connected to the plug. On the pipeline there is a package for spraying extinguishing liquid foam concentrate solution. The package consists of at least three perpendicular to the axis of the main line inlet and connected with it additional pipelines. Each of the pipeline consists of two parts, symmetric to the axis of the main line inlet and lying in one plane passing through the axis of the main line inlet. Length of additional pipelines are increasing from the free end of the input pipeline to the closed. Axis of additional pipelines are rotated relative to each other at an angle of 120°. Each has tap with jet attached according to the order of increasing length from peripheral closed part of a pipeline to the axis of main line inlet. Before jets there are perforated discs, mounted on the inlet pipe through the sleeves. Disc diametres increase from the previous to the subsequent additional pipelines.

EFFECT: increased efficiency of spraying extinguishing fluidic solution of foam generator (polydispersed foam of high expansion rate).

1 dwg