Structure null of smoke removal manner and smoke removal

摘要

PURPOSE: To uniformize smoke suction quantity in the same smoke exhaust area by adjusting an opening ratio in a slit opening, which is utilized as a smoke exhaust port, of a luminaire in the ceiling according to the distance from the slit opening to a suction port of a smoke exhaust duct. ;CONSTITUTION: A gas volume control plate made of a thin steel plate which is bent in a groove shape so as to fit to the shape of Q slit opening 4 is fit to the slit opening 4 of a luminaire B fixed to the ceiling A so that only a specified length of the slit opening 4 is blocked. The opening ratio of the slit opening 4 is adjusted in five steps of 100% to 0% according to the distance from the slit opening 4 to a suction port of a smoke exhaust duct. Smoke suction quantity in the same smoke exhaust area is uniformized, and smoke in a room is exhausted t:'o the outside of the room through the suction port of the smoke exhaust duct.;COPYRIGHT: (C)1995,JPO