MultI-step water level controlled siphon spillway

摘要

The present invention relates to a multi-stage water level siphon channel, the inlet pipe extending upward from the reservoir to the floor of the embankment; An extension part extending from the inlet pipe and over the embankment; Outflow pipe extending downward along the slope of the embankment in the extension; An air vent having one end positioned close to an upper portion of the inflow pipe, extending upward to bend so that the other end communicates with the extension, and having an angle adjustable; And a controller configured to adjust the angle of the air vent corresponding to a value set by a user.