| 摘要 |
The present invention relates to a drainage pipe structure used in a fish farm storing water, and more particularly, to a drainage pipe structure for suctioning waste water including bottom sludge, capable of suctioning the sludge over a wide area and discharging the sludge to the outside, thereby largely reducing the sludge stagnated in the fish farm. According to one embodiment of the present invention, the drainage pipe structure is used in a fish farm having a spiral flow, and comprising: a hollow body installed to be laid down to be in contact with a bottom of a fish farm; a primary suction hole installed at the front end of the body; and a secondary suction hole facing water flow according to a spiral flow at the middle section of the body spaced from the primary suction hole. |
