Title:
PRESSURE SMOKEPROOF SYSTEM
Document Type and Number:
Japanese Patent JP2016116769
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enhance space efficiency of a building and ensure heat shield performance and smoke shield performance in a stair hall for a long time.SOLUTION: The pressure smokeproof system includes: an air supply pressure device 2 forcibly supplying air to and pressuring a stair hall 1; fireproof doors 3 arranged in the stair hall 1, using a refractory material formed by a porous material containing free water, and having a heat shield function; and pressure adjustment doors 4 arranged in a top part 1A and a lower part 1B of the stair hall 1 and communicated with outside of a multistory building T. The stair hall 1 serving as an evacuation route of the multistory building T is pressurized by forcible air supply to prevent smoke from flowing therein at a time of a fire.SELECTED DRAWING: Figure 1
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Inventors:
HIROTA MASAYUKI
Application Number:
JP2014259230A
Publication Date:
June 30, 2016
Filing Date:
December 22, 2014
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
A62C3/00; A62B13/00; A62C2/06; F24F7/007; F24F13/02
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Yoshifumi Saeki
Kenichi Kawabuchi
Tadashi Takahashi
Yoshifumi Saeki
Kenichi Kawabuchi
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