| 摘要 |
<p>A fire-extinguishing apparatus comprises a reservoir for storage of a fire-extinguishing liquid, a liquid feeding system, and a directed gas-and-droplet flow generating device. A discharge nozzle of the apparatus is provided with a central profiled channel (14) and peripheral profiled channels (15). Each of the profiled channels consists of successively arranged portions including a conical converging portion, a cylindrical portion, and a conical diverging portion. Outlet apertures of peripheral channels (15) are uniformly distributed around the circumference at a predetermined pitch distance about the outlet aperture of the central profiled channel (14). The discharge nozzle may be formed as an attachment (13) with profiled channels (14 and 15) provided within the spraying head casing. Utilization of the apparatus for extinguishing with fine dispersed water of fires on electric installations, which are under high voltage, provides for stable electric safety.</p> |
