| 摘要 |
PROBLEM TO BE SOLVED: To extinguish a fire with a small quantity of water and perform a continuous discharge by simultaneously force-feeding a liquid and a gas to a two-fluid nozzle to atomize the liquid, and spraying the atomized liquid to extinguish the fire. SOLUTION: A compressor 1 compresses air and force-feeds it to a two-fluid nozzle 3 through a hose 4. A pump 2 sucks and pressurizes the water extinguishing water stored in a water storage tank 6 that is a liquid source, and force-feeds it to the two-fluid nozzle 3 through a hose 5. The two-fluid nozzle 3 mixes the simultaneously fed pressurized water and compressed air and blows out them at once. The water 7 blown out from the 2-fluid nozzle 3 is used for fire extinguishment, and sprayed to a flame 8 of fire source. Since the water is sprayed as atomized state, the water particle is made fine so as to facilitate the heat exchange with the flame 8. Accordingly, evaporation latent heat is effectively consumed for the fire extinguishment in addition to sensible heat of water, and the temperature of the flame 8 can be effectively reduced with a small quantity of water to extinguish it.
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