| 摘要 |
A water flow branching device, a water flow branching method and a sewage system which can reduce the flow rate of sewage (water flow) flowing through a soil pipe by enhancing the flow-rate branching function of sewage (water flow) with a simple arrangement. The water flow branching device (10) for feeding, while branching, water flowing in from a junction pipe (14), to a soil pipe (16) and a rain water pipe (18), comprises a first water flow channel (20) equipped with a weir (28) for regulating the amount of water flowing in from the junction pipe (14), for leading the water flowing in from the junction pipe (14) to the soil pipe (16), a second water flow channel (32) for leading the water over flowed the weir (28) to the rain water pipe (18), a partition (26) provided to intercept the water flowing through the first water flow channel (20) and forming a plurality of diversion chambers (28) in the first water flow channel (20) by sectioning, and a section (30) for throttling the flow rate of water flowing from one diversion chamber formed in the partition (26) to an other diversion chamber (28). |
