| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle device in which an open pore of a nozzle for discharging a water-based fire extinguishing agent is prevented from being choked owing to cooling effect of a liquified fire extinguishing gas, and also to provide a fire extinguisher equipped with the nozzle device. SOLUTION: The nozzle device discharges a mixture of a fire extinguishing gas generated by discharging a liquified fire extinguishing gas from a fire extinguishing gas nozzle and a water-based fire extinguishing agent discharged from a water-based fire extinguishing agent nozzle arranged adjacent to the fire extinguishing gas nozzle. In a region of the nozzle device that is likely to be frozen owing to cooling by the discharged liquified fire extinguishing gas, at least the surface of the device is made of a water repellent resin. The fire extinguisher comprises the nozzle device, a liquified fire extinguishing gas storing section for storing the liquified fire extinguishing gas, a water-based fire extinguishing agent storing section for storing the water-based fire extinguishing agent, a fire extinguishing gas pipe connected to the liquified fire extinguishing gas storing section and the fire extinguishing gas nozzle of the nozzle device, and a water-based fire extinguishing agent pipe connected to the water-based fire extinguishing agent storing section and to the water-based fire extinguishing agent nozzle. COPYRIGHT: (C)2009,JPO&INPIT
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