To provide a sprinkling nozzle for fire extinguishing in which a fire extinguishing potential is heightened, damage of flood damage is made small by making radiant quantities small, and cost is reduced by making the capacity of a pump, etc. small.
In case of fire, fire extinguishing is performed by sprinkling a fire extinguishing liquid or water for fire extinguishing from a nozzle part 15 of the sprinkling nozzle 1 for fire extinguishing connected to fire extinguishing piping. At this time, a prescribed dispersion pattern is formed by intensively sprinkling the fire extinguishing liquid or the water for fire extinguishing on a selected part within the prescribed protection scope 25 of the sprinkling nozzle 1 for fire extinguishing from the nozzle part 15 of one of the sprinkling nozzles 1 for fire extinguishing and sprinkling water on all the area within the prescribed protection scope 25 is carried out by scanning the dispersion pattern inside the prescribed protection scope 25 by rotating the nozzle part 15 at about 1 rpm.
TONOMURA TOSHIAKI
SHIMOKAWA TAKASHI
