SEAL STRUCTURE, BUILDING HAVING THE SEAL STRUCTURE, AND POWER GENERATING PLANT HAVING THE BUILDING

• Main Authors: IWAMOTO YOICHI, SHIMIZU HIROSHI, IWATA TOMOKAZU, NAGASE RYUICHI, TAKAGI KATSUMI, MATSUHASHI YOSUKE, TSUMURA YASUHIRO, MUROYA ITARU
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2017
• Subjects: BLASTING; BUILDING; CEILINGS; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSULATION OR OTHER PROTECTION OF BUILDINGS; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; PISTONS; ROOFS; SEALINGS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WALLS, e.g. PARTITIONS; WEAPONS

PROBLEM TO BE SOLVED: To provide a seal structure which can maintain a fireproof property and prevent a thermal expansion fireproof material from being collapsed when a gap is generated between a fireproof member and a wall surface.SOLUTION: A seal structure 1 includes: a piping member 2 extending along an axial line O through a hole 13 formed on a wall 10; a fireproof seal material 3 which closes a space between an outer circumferential face of the piping member 2 and an inner circumferential face of the hole 13; a fireproof member 5 which is fixed to the outer circumferential face of the piping member 2 on one side Da1 of the wall 10 in an axial direction and on which a recess 51 is formed radially inwardly from other side Da2 in the axial direction so as to be in contact with the wall 10; a thermal expansion fireproof material 6 provided in the recess 51 and which expands by heat; a cylindrical fixing member 7 which forms a cylindrical shape fixed to the outer circumferential face of the piping member 2 on the one side Da1 in the axial direction of the fireproof member 5; and a restricting member 8 fixed to the cylindrical fixing ember 7 to restrict a radial movement of the fireproof member 5.SELECTED DRAWING: Figure 2 【課題】耐火部材と壁面と間に間隙が生じた場合に耐火性を確保することが可能なシール構造において、熱膨張耐火材が崩れることを防止する。【解決手段】壁部１０に形成された孔部１３を挿通するように軸線Ｏに沿って延びる配設部材２と、配設部材２の外周面と孔部１３の内周面との空間を閉塞する耐火シール材３と、壁部１０における軸線方向一方側Ｄａ１で配設部材２の外周面に固定されて、壁部１０に接するとともに径方向内側に軸線方向他方側Ｄａ２から凹む凹部５１が形成された耐火部材５と、凹部５１内に設けられ、熱によって膨張する熱膨張耐火材６と、耐火部材５の軸線方向一方側Ｄａ１で、配設部材２の外周面に固定された筒状をなす筒状固定部材７と、筒状固定部材７に固定されて、耐火部材５の径方向の移動を拘束する拘束部材８と、を備えるシール構造１を提供する。【選択図】図２