WATER INTAKE PIT AND PLANT

PROBLEM TO BE SOLVED: To provide a water intake pit and a plant capable of restraining generation of an air sucking-in vortex, and capable of also reducing cost, without changing a distance between a bottom surface of a flow passage and the lower end of a suction port from a conventional distance, in the present invention.SOLUTION: A water intake pit comprises a first plate-like member 17 of including an upper surface 17a opposed to the lower end 38A of a suction port 38 by extending in the direction toward the upstream side to a flow of water C from a rear wall in a state of being soaked in the water C and partitioning a first flow passage 26 between an inner bottom surface 11a of a pit body 11 and itself, a second plate-like member 18 provided above the suction port 38 by extending in the direction toward the upstream side from the rear wall in the state of being soaked in the water C, a second flow passage 27 provided between the first plate-like member 17 and the second plate-like member 18 and a third flow passage 28 arranged on the second plate-like member 18 and flowing the water C.SELECTED DRAWING: Figure 2 【課題】本発明は、空気吸い込み渦の発生を抑制することが可能で、かつ流路の底面と吸い込み口の下端との距離を従来の距離から変化させることなく、コストを低減することの可能な取水ピット及びプラントを提供することを目的とする。【解決手段】水Ｃに浸漬された状態で、後壁から水Ｃの流れに対する上流側に向かう方向に延在し、吸い込み口３８の下端３８Ａと対向する上面１７ａを含み、ピット本体１１の内底面１１ａとの間に第１の流路２６を区画する第１の板状部材１７と、水Ｃに浸漬された状態で、後壁から上流側に向かう方向に延在し、吸い込み口３８の上方に設けられた第２の板状部材１８と、第１の板状部材１７と第２の板状部材１８との間に設けられた第２の流路２７と、第２の板状部材１８上に配置され、水Ｃが流れる第３の流路２８と、を備える。【選択図】図２