FIRE EXTINGUISHING GAS JET DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce jet reaction of the jet of fire extinguishing gas by shortening an arrival time to a facing wall 16a in a fire-extinguishing object space 33 into which the fire extinguishing gas is jetted and filling the space with the fire extinguishing gas.SOLUTION: A fire extinguishing gas jet device 30 to be provided at a fitting part 34 of a duct 32 opened to a fire extinguishing object space 33 includes a nozzle member 36 to be connected to the fitting part 34, having a right cylindrical shape, where a plurality of nozzle holes 35 for jetting fire extinguishing gas have axes orthogonal to an axis of the fitting part 34. A cylindrical guide member 39 is fixed by inserting the fitting part 34 into an end plate 4. A gas guide face 37 facing the nozzle holes 35 of a right cylindrical peripheral wall 38 guides the fire extinguishing gas from the nozzle holes 35 by bending the fire extinguishing gas to the axial direction of the nozzle member 36 so as to reduce the jet reaction in a direction opposite to the direction to be guided.