| 摘要 |
FIELD: fire safety.SUBSTANCE: method is intended for fire extinguishing. Method is implemented by means of a vessel, storing fire-extinguishing substance, vessel, in which fire-extinguishing substance is stored, is fixed with brackets to a building structure of a room and is equipped with a gas phase discharge device, combined with measuring probe for fire-extinguishing substance and a stop-starting device, which is connected via pipeline to a tube for feeding fire-extinguishing liquid into a foam generator, that is equipped with inputs for simultaneous supply of liquid and gas, liquid supply is performed in two directions, including axial feeding of liquid via feed pipe and series-connected and coaxial with confuser and cylindrical nozzle, tangential liquid feed is performed via a coaxial, with a cylindrical nozzle, body in the shape of a cylinder-conic sleeve, on the cylindrical part of the sleeve there is an annular swirl chamber with a branch for liquid supply, at the edges of the annular chamber there are two rows of liquid feed tangential channels, having at least three tangential channels connecting the annular chamber with a cylindrical cavity of the body, to which a circular plate, located perpendicular to axis of vortex annular chamber, is coaxially attached, and rigidly connected to the cylindrical cavity of the body, and in its end section a slotted nozzle, which consists of two mutually perpendicular rectangular parallelepipeds with throttle through holes of rectangular section, connected to the cavity of the body, is attached perpendicular to a round plate.EFFECT: higher efficiency of fire-extinguishing due to usage of high-expansion foam.1 cl, 3 dwg |
