GAS-GENERATING FIRE EXTINGUISHER FOR FIRE AND EXPLOSION PREVENTION AND HARD FOAM EXTINGUISHING Russian patent published in 2019 - IPC A62C13/04 

FIELD: fire safety.

SUBSTANCE: invention relates to fire extinguishing techniques, namely portable fire extinguishers and fire extinguishers for fire and explosion prevention and fire fighting with inorganic fast-hardening foam. In a fire extinguisher for fire and explosion prevention and hard foam extinguishing, comprising sealed housing with components of fire-extinguishing substance placed in it, means for mixing components of fire-extinguishing substance and foaming mixture of fire-extinguishing substance components, means for creating pressure inside housing with possibility of pressure extinguishing by components of fire extinguishing substance from housing into facility for mixing and foaming mixture of components of fire-extinguishing substance and means for separately supplying fire-extinguishing substance components from housing to means for mixing components of fire-extinguishing substance and foaming mixture of components of fire-extinguishing substance, pressure generating device inside the housing is made in the form of a gas generator with the possibility of creating a displacement gas pressure of 0.8–1 MPa, for example, a solid-fuel generator GG-10(B)-02, and the fire extinguisher housing is U-shaped in the form of two predominantly vertically oriented balloons, in which the lower ends are connected to each other from below by means of taps, and upper ends on top are closed by covers, to one of which there connected are pipelines of means of separate supply of fire-extinguishing substance components to device for mixing and foaming mixture of fire-extinguishing substance components, and to another is device for creation of pressure inside housing in form of gas generator.

EFFECT: improving operating reliability of a fire extinguisher and fire extinguishing efficiency and fire and explosion prevention.

14 cl, 9 dwg, 2 tbl