River water quality conservation equipment

摘要

(57) [Summary] [Purpose] To secure the amount of dissolved oxygen in river water at any place in the river. [Structure] A river water intake pit 4 and a recess 5 are provided under the high water bed 3 of the river 1, and the fountain main pipes 14, 1 are respectively provided at the discharge ports of the submersible pumps 10, 11, 12 arranged in the pit 4. A large number of fountain pipes 20 and 2 which are connected to the main pipes 14 to 16 and which are provided with flow rate adjusting valves on the main pipes 14 to 16 and which are equipped with fountain nozzles 1 and 22 are connected, and the air and the river water are brought into contact with each other by the fountain, and the flow of the river water is generated.