FIRE EXTINGUISHING INSTALLATION Russian patent published in 2018 - IPC A62C35/00 

FIELD: fire safety.

SUBSTANCE: invention relates to firefighting equipment. In a fire extinguishing installation using a gas-liquid mixture containing a vessel wherein the extinguishing agent is stored, and which is equipped with a vortex-type device for forming a gas-liquid mixture, which is made in the form of a conical mixing chamber with a tangential inlet in the upper part, by means of a flexible high-pressure hose, working gas (for example, nitrogen or CO₂), to the vessel from the starting cylinder, wherein the gas supply is carried out along a vortex element coaxial to the chamber and made in the form of a conical perforated spiral with a perforation coefficient in the range of 50÷80 %, and the gas-liquid mixture supply to the central pipeline is carried out from the lower part of the chamber connected to the extinguishing agent discharge device combined with a safety valve, and the vertical branch pipe of the chamber through a tee-joint is connected to the device for pouring the fire extinguishing agent and pressure indicator, wherein the working gas for modular units is stored in the starting cylinder located next to the extinguishing agent container, which is equipped with a stop-starting device for electrical or thermomechanical start-up, wherein the cylinder is secured to the building structure with a bracket, and to ensure supply of optimum concentration of a gas-liquid mixture to all sprinklers, each distribution network node includes a gas-liquid mixture distribution device, when dividing the flow into two directions, a standard tee is used, and when the flow is divided into three or more directions, a distribution device of a special design is used, for example a chamber type, and each sprinkler or unit of sprinklers is equipped with a device for orientation in one or two planes, each sprinkler consists of a base in the form of a chimney with a channel and a divider fixed to the holders, base of the sprinkler is connected to at least two arched holders, which hold the sleeve with the divider fixed thereon, made in the form of a diffuser with a belt bent towards the base with a tabs located along the generatrix of the conical surface of the belt, and inside the divider a sprayer is additionally installed, made in the form of a cup fixed to the inner surface of the divider by at least three radial horizontally arranged flat tabs, wherein the axis of the cup coincides with the axes of the through channel of the fitting and the sleeve, and its inner cavity is directed towards the sleeve.

EFFECT: increased speed of the fire extinguishing system and gas-liquid mixture spraying efficiency.

1 cl, 2 dwg