KOCHETOV MOBILE FIRE-EXTINGUISHING INSTALLATION WITH TWO-PHASE FIRE SPRAY Russian patent published in 2017 - IPC A62C15/00 

FIELD: fire safety.

SUBSTANCE: mobile fire extinguishing system with a two-phase fire spray comprises a container with a fire extinguishing liquid that is mounted on the operator's shoulder bag, a displacement fluid supply system including a high-pressure cylinder with compressed gas, a compressed gas supply line to the gas space of the container with a shut-off valve and gas-pressure reducer, a liquid sprayer mounted on the shaft with a trigger valve mechanism. The sprayer is made in two phases and is connected to the tank by two pipelines: the first supply pipe with the supply nozzle of the sprayer and connected in series and coaxial with it convector and the cylindrical nozzle, and the second supply pipe with an annular chamber that tangentially supplies liquid through the coaxial housing with a cylindrical nozzle. The body is made in the form of a cylindrical sleeve, on the cylindrical part of which a vortex annular chamber with a branch pipe for supplying liquid is fixed. Two rows of liquid supplying tangential channels are made on ends of the circular chamber. In each row there are three tangential channels connecting the annular chamber with the cylindrical cavity of the housing mixing chamber. The round plate is rigidly connected to the cylindrical cavity of the housing. Perpendicular to the round plate is attached a slotted nozzle, which is made combined and consists of two mutually perpendicular rectangular parallelepipeds with throttling through holes of rectangular cross section connected to the cavity of housing.

EFFECT: increase the effectiveness of fire extinguishing due to the finely dispersed droplets in flow and the range of the gas-droplet flow.

2 cl, 2 dwg