DEVICE FOR FIRE AND EXPLOSION PREVENTION AND EXTINGUISHING OF LARGE-SCALE EMERGENCY TRANSPORT AND EMERGENCY INDUSTRIAL FIRES WITH COMBINED HYBRID FOAM Russian patent published in 2024 - IPC A62C3/06 A62C5/02 

FIELD: fire extinguishing and fire-and-explosion prevention equipment.

SUBSTANCE: invention relates to a device for fire-and-explosion prevention and extinguishing of large-scale transport and emergency industrial fires, which contains located from below barrel of air-mechanical foam with expansion factor of 5–10 and generator of air-mechanical foam with expansion factor of 25–50 located directly above it, made with possibility of formation and supply under pressure to zone of fire-and-explosion prevention and fire of combined air-mechanical foam jets with multiplicity of 20–40, obtained as a result of turbulent non-impact mixing in the process of joint concurrent motion of a jet of air-mechanical foam with expansion ratio of 25–50 and air-mechanical foam of low expansion ratio with ratio of 5–10 at their weight ratio by aqueous solution of foaming agent from 1:1 to 1:3, at that, the air-mechanical foam generator with expansion ratio of 25–50 is made with possibility of formation by means of turbulent mixing in the process of concurrent movement under the pressure of coaxial, contacting or intersecting jets of air-mechanical foam with ratio of 25–70 and air-mechanical foam with ratio of 5–10.

EFFECT: increased efficiency of fire-and-explosion prevention and extinguishing of large-scale transport and emergency industrial fires due to the increased range, uniformity and softer distribution of water-air foam over the fire area; higher safety.

4 cl, 7 dwg