| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide gas fire-extinguishing equipment capable of controlling sounds when a fire-extinguishing gas is sprayed from a spray head. <P>SOLUTION: The nozzle structure includes: the spray head 23 having a plurality of nozzle holes 26 for spraying the high-pressure fire-extinguishing gas toward space; a conduit 24 connected with the spray head 23 for guiding the high-pressure fire-extinguishing gas to the spray head 23; a fire-extinguishing gas source 25 for supplying the high-pressure fire-extinguishing gas for the conduit 24; and a silencing device 27 with a sound absorption member 33 made of a porous material and disposed just before openings of the respective nozzle holes 26 within the spray head 23 and closely in contact with the surface defining the openings of the spray head 23. <P>COPYRIGHT: (C)2013,JPO&INPIT |
