| 摘要 |
FIELD: fire-fighting means. ^ SUBSTANCE: invention refers to portable fire-control units, particularly to fire extinguishers. The fire extinguisher comprises a extinguishing fluid tank, a fluid displacement system accommodating a including siphon tube, a locking starter coupled with an outlet of the siphon tube, a fluid flow limiter controlling a cross-sectional area of a flow passage by fluid pressure in the tank, a fluid sprayer with a centrifugal fluid vortex and an exhaust nozzle, and a pipeline connecting an outlet of the locking starter and the fluid sprayer; the exhaust nozzle of the fluid sprayer represents a cone diffuser chamber with its inlet coupled with an outlet of the cylindrical mixing chamber of the centrifugal vortex. An inlet connection comprises an axial fluid supply tube and a cylindrical compressed air supply cavity into the mixing chamber where air-mechanical foam is produced. Besides, the fire extinguisher is supplied with a small-sized compressor which is coupled by an air line to a connection cavity and supplies compressed air when the fire extinguisher actuated. ^ EFFECT: more effective various class fire extinguishing ensured by using high-expansion air-mechanical foam. ^ 1 cl, 1 dwg |
