AUTOMATIC FIRE EXTINGUISHER Russian patent published in 2018 - IPC A62C35/00 

FIELD: fire safety.

SUBSTANCE: invention relates to fire extinguishing systems, in particular to a fire extinguisher of a lavatory disposal receptacle. Automatic fire extinguisher consists of a cylinder with a bracket for its attachment to a wall of a room; a liquid fire extinguishing agent, which is under pressure in the cylinder and is transferred to a gas phase upon efflux from the cylinder; charging tube sealingly connected to the cylinder and hermetically sealed after charging the cylinder; at least one discharging tube, one end of which is sealingly connected to the cylinder wall, which is the bottom for the liquid extinguishing agent, and the other end inside has a plug, an end of which is in contact with the liquid fire extinguishing agent, connected to the discharging tube by a low-melting solder, herewith the plug is made of metal or an alloy with a high thermal conductivity and has a portion protruding from the discharging tube. Plug has a sealing element, and a proportioning device is installed in front of it. Plug may be continuous or have through holes with axes placed in a vertical plane, or be in the form of a sleeve with a bottom facing inside the discharging tube. Wall of the sleeve protruding from the discharging tube has a section from the source of the fire, which height is selected from the range of 0.5d≤h≤d, where h is the section height of the sleeve; d is the outer diameter of the sleeve.

EFFECT: time period from ignition of the contents of the disposal receptaclebefore the blowout of the fire extinguishing agent is reduced and the reliability of the fire extinguisher is increased.

10 cl, 11 dwg