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A platform for research: civil engineering, architecture and urbanism
WATER-INTAKE DEVICE AND WATER-INTAKE METHOD
PROBLEM TO BE SOLVED: To prevent overflow of seawater from a water-intake tank by blocking an influx route of the seawater when a tidal level is increased due to onslaught of a tsunami so that a water level in the water-intake tank can be maintained at an appropriate level without involving operation of a worker even on the occurrence of a station blackout due to an onslaught of the tsunami, to enable a plant to restore a normal operation state once the tidal level is back to normal and to secure a drainage route of the seawater flowing into the water-intake tank, on the occurrence of an overtopping wave higher than a breakwater wall due to a successive increase in the tidal level, by opening the influx route of the seawater.SOLUTION: A water intake device comprises: a water intake tank 100; an inflow entrance 104 installed at a lower edge section of an outer wall of the water intake tank; an opening and closing wall 1 to open and close the inflow entrance; a float attached weight 2 which has a weight 16 and a float 18, formed into a container with an upper opening 11, installed on an upper surface of the weight; a connection member 3 which connects the opening and closing wall with the float attached weight; and a support member 4 which supports the connection member. Mass of the float attached weight is larger than the same of the opening and closing wall.SELECTED DRAWING: Figure 2
【課題】津波襲来時に全電源が喪失した場合であっても、作業員が介在することなく取水槽の水位を適正レベルに維持できるように、津波襲来に伴う海面水位の上昇時には、海水の流入路を遮断して取水槽からの溢水を防ぐとともに、水位が正常に戻れば通常状態に復帰でき、海面水位のさらなる上昇に伴う防波壁を超える越波発生時には、海水の流入路を開放して越波により侵入した海水の排水ルートを確保できるようにする。【解決手段】取水槽１００と、該取水槽の外壁下端部に設けられた流入口１０４と、該流入口を開閉するための開閉壁１と、ウエイト１６と該ウエイトの上面に設けられ、上方に開口部１１が形成された容器状のフロート１８からなるフロート付きウエイト２と、前記開閉壁と前記フロート付きウエイトとを連結する連結部材３と、前記連結部材を支持する支持部材４とを備え、前記フロート付きウエイトの質量は、前記開閉壁より大きいことを特徴とする。【選択図】図２
WATER-INTAKE DEVICE AND WATER-INTAKE METHOD
PROBLEM TO BE SOLVED: To prevent overflow of seawater from a water-intake tank by blocking an influx route of the seawater when a tidal level is increased due to onslaught of a tsunami so that a water level in the water-intake tank can be maintained at an appropriate level without involving operation of a worker even on the occurrence of a station blackout due to an onslaught of the tsunami, to enable a plant to restore a normal operation state once the tidal level is back to normal and to secure a drainage route of the seawater flowing into the water-intake tank, on the occurrence of an overtopping wave higher than a breakwater wall due to a successive increase in the tidal level, by opening the influx route of the seawater.SOLUTION: A water intake device comprises: a water intake tank 100; an inflow entrance 104 installed at a lower edge section of an outer wall of the water intake tank; an opening and closing wall 1 to open and close the inflow entrance; a float attached weight 2 which has a weight 16 and a float 18, formed into a container with an upper opening 11, installed on an upper surface of the weight; a connection member 3 which connects the opening and closing wall with the float attached weight; and a support member 4 which supports the connection member. Mass of the float attached weight is larger than the same of the opening and closing wall.SELECTED DRAWING: Figure 2
【課題】津波襲来時に全電源が喪失した場合であっても、作業員が介在することなく取水槽の水位を適正レベルに維持できるように、津波襲来に伴う海面水位の上昇時には、海水の流入路を遮断して取水槽からの溢水を防ぐとともに、水位が正常に戻れば通常状態に復帰でき、海面水位のさらなる上昇に伴う防波壁を超える越波発生時には、海水の流入路を開放して越波により侵入した海水の排水ルートを確保できるようにする。【解決手段】取水槽１００と、該取水槽の外壁下端部に設けられた流入口１０４と、該流入口を開閉するための開閉壁１と、ウエイト１６と該ウエイトの上面に設けられ、上方に開口部１１が形成された容器状のフロート１８からなるフロート付きウエイト２と、前記開閉壁と前記フロート付きウエイトとを連結する連結部材３と、前記連結部材を支持する支持部材４とを備え、前記フロート付きウエイトの質量は、前記開閉壁より大きいことを特徴とする。【選択図】図２
WATER-INTAKE DEVICE AND WATER-INTAKE METHOD
取水装置および取水方法
EBATO SHOICHI (author) / JINBO MASAKAZU (author) / HATANO TAKUMA (author) / OKUDA YUKIHIKO (author)
2016-06-30
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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