| 摘要 |
<p>In order to prevent foaming ratio from being degraded, there is provided a high expansion foam fire-extinguishing system (B) including: a foam generator body (1) formed to a tubular shape; a foam forming screen (2) arranged at a distal end (1a) side of the foam generator body (1); an emission nozzle (3) arranged at a back end (1b) side of an interior of the foam generator body, for radiating a foam solution (W) in an emission pattern (WP) that spreads in a conical shape towards the foam forming screen (2); and an intermediate screen (4) arranged between the foam forming screen (2) and the emission nozzle (3), in which the intermediate screen (4) is arranged in a liquid droplet speed regulating region from a landing position (P0) at which an outer periphery of the emission pattern (WP) hits an inner wall (1f) of the foam generator body to a limit position (P1) at which liquid droplets can pass through a mesh of the intermediate screen (4).</p> |
