Continuous diversion energy dissipation type spillway, arc stilling pier and energy dissipation unit

The utility model relates to a continuous diversion energy dissipation type spillway, an arc-shaped stilling pier and an energy dissipation unit, which comprise an arc-shaped stilling pier, an arc-shaped diversion partition wall, a side wall and a bottom plate, and the arc-shaped stilling pier, the arc-shaped diversion partition wall, the side wall and the bottom plate are integrally poured; the arc-shaped stilling piers and the arc-shaped flow guide partition walls are perpendicular to the water flow direction and are arc-shaped; the arc stilling pier is located on the center line of the spillway, and a pier body of the arc stilling pier is provided with a flow guide hole. The arc-shaped flow guide partition walls are symmetrically arranged on the two sides of the downstream of the arc-shaped stilling pier. The solar water heater is simple in structure and low in manufacturing cost, and the number of energy dissipation sections can be automatically adjusted to be increased or decreased according to water flo