Title:
加圧防排煙設備、建物及び加圧防排煙設備の設計方法
Document Type and Number:
Japanese Patent JP7443896
Kind Code:
B2
Abstract:
To provide a compression smoke prevention and exhaustion facility capable of suppressing an opening failure of a smoke block opening in the case of occurrence of a fire, and a design method for a building and the compression smoke prevention and exhaustion facility.SOLUTION: The present invention relates to a compression smoke prevention and exhaustion facility 30 in a building 1 comprising: a room 4 with emergency stair; a smoke block opening 26 which is provided in an entrance/exit 25 communicating to the room 4 with emergency stair and opened to the side of the room 4 with emergency stair; an adjacent room 3 connected to the room 4 with emergency stair via the smoke block opening 26; and a natural smoke exhaustion port 40 provided in the adjacent room 3 for exhausting air which flows from the room 4, in a natural exhaustion manner. The compression smoke prevention and exhaustion facility comprises: a smoke exhaustion device 36 for forcibly exhausting smoke from mechanical smoke exhaustion ports 33 and 35 provided in a general room 2 and the adjacent room 3 to the outside of the building; and an air supply device 38 for forcibly supplying air from an air supply port 41 provided in the room 4 with emergency stair to the room 4 with emergency stair. While the smoke exhaustion device 36 performs a smoke exhausting operation, the natural smoke exhaustion port 40 is opened and outside air is supplied into the adjacent room 3.SELECTED DRAWING: Figure 1
Inventors:
Masashi Kishigami
Junichi Yamaguchi
Junichi Yamaguchi
Application Number:
JP2020064558A
Publication Date:
March 06, 2024
Filing Date:
March 31, 2020
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
F24F7/06; A62B13/00
Domestic Patent References:
| JP2003334261A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda