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A platform for research: civil engineering, architecture and urbanism
SOCKET-SHAPED FIREPROOF TWO-LAYERED PIPE INCORPORATING FIREPROOF THERMAL EXPANSION MATERIAL
To provide an inexpensive fireproof two-layered pipe having superior sound insulating property capable of completing a piping work by just connecting the fireproof two-layered pipe incorporating a fireproof thermal expansion material to an incombustible drain pipe joint.SOLUTION: A fireproof two-layered pipe comprises: a vertical drainage pipe made of a synthetic resin having a socket-shaped connection end arranged on its upper part so as to receive a connection end of a lower part of an incombustible drain pipe joint, the socket-shaped connection end having a rubber ring to seal a gap therebetween; a fireproof thermal expansion material disposed on an outer periphery of a constricted part of the socket-shaped connection end so as to close the connection end by expanding by heat of a fire; a short cylindrical fiber-mixed mortar layer covering the peripheral surface of the socket-shaped connection end and the fireproof thermal expansion material; and a straight pipe made of a fiber-contained mortar covering the vertical drainage pipe. The lower end face of the fiber-mixed mortar layer is placed on the upper face of the straight pipe.SELECTED DRAWING: Figure 3
【課題】耐火性熱膨張材を内蔵した耐火二層管を不燃性の排水管継手に接続するだけで配管作業を終えることができ、遮音性も良好で安価な耐火二層管を提供する【解決手段】不燃性の排水管継手の下方の接続端部を受容する受け口形の接続端部を上部に備え、受け口形の接続端部内には排水管継手との間をシールするゴムリングを備えた合成樹脂製の排水縦管と、火災の熱により膨張して接続端部を閉塞すべく受け口形の接続端部のくびれ部の外周に配設された耐火性熱膨張材と、受け口形接続端部の周面及び耐火性熱膨張材を被覆する短筒状の繊維混入モルタル層と、排水縦管を被覆する繊維混入モルタル製の直管とを有する耐火二層管であって、繊維混入モルタル層の下端面を直管の上端面に載置する。【選択図】図３
SOCKET-SHAPED FIREPROOF TWO-LAYERED PIPE INCORPORATING FIREPROOF THERMAL EXPANSION MATERIAL
To provide an inexpensive fireproof two-layered pipe having superior sound insulating property capable of completing a piping work by just connecting the fireproof two-layered pipe incorporating a fireproof thermal expansion material to an incombustible drain pipe joint.SOLUTION: A fireproof two-layered pipe comprises: a vertical drainage pipe made of a synthetic resin having a socket-shaped connection end arranged on its upper part so as to receive a connection end of a lower part of an incombustible drain pipe joint, the socket-shaped connection end having a rubber ring to seal a gap therebetween; a fireproof thermal expansion material disposed on an outer periphery of a constricted part of the socket-shaped connection end so as to close the connection end by expanding by heat of a fire; a short cylindrical fiber-mixed mortar layer covering the peripheral surface of the socket-shaped connection end and the fireproof thermal expansion material; and a straight pipe made of a fiber-contained mortar covering the vertical drainage pipe. The lower end face of the fiber-mixed mortar layer is placed on the upper face of the straight pipe.SELECTED DRAWING: Figure 3
【課題】耐火性熱膨張材を内蔵した耐火二層管を不燃性の排水管継手に接続するだけで配管作業を終えることができ、遮音性も良好で安価な耐火二層管を提供する【解決手段】不燃性の排水管継手の下方の接続端部を受容する受け口形の接続端部を上部に備え、受け口形の接続端部内には排水管継手との間をシールするゴムリングを備えた合成樹脂製の排水縦管と、火災の熱により膨張して接続端部を閉塞すべく受け口形の接続端部のくびれ部の外周に配設された耐火性熱膨張材と、受け口形接続端部の周面及び耐火性熱膨張材を被覆する短筒状の繊維混入モルタル層と、排水縦管を被覆する繊維混入モルタル製の直管とを有する耐火二層管であって、繊維混入モルタル層の下端面を直管の上端面に載置する。【選択図】図３
SOCKET-SHAPED FIREPROOF TWO-LAYERED PIPE INCORPORATING FIREPROOF THERMAL EXPANSION MATERIAL
耐火性熱膨張材を内蔵した受け口形耐火二層管
KUBOTA HIROYUKI (author) / OKIDA SADAHARU (author)
2019-04-18
Patent
Electronic Resource
Japanese
FIREPROOF MEASURE STRUCTURE, FIREPROOF MEASURE METHOD AND HEAT-EXPANSION FIREPROOF SHEET MATERIAL
| European Patent Office | 2017