Fish way inlet flow velocity adjusting structure and design method

The invention provides a fishway inlet flow velocity adjusting structure and a design method, and relates to the technical field of fishway design, the fishway inlet flow velocity adjusting structure comprises a fishway inlet, a flow velocity adjusting buoyancy tank, a slide way, a service gate, a fishway pool chamber and a fishway partition plate, the service gate is installed at the position, close to the left side of the flow speed adjusting buoyancy tank, of the fishway inlet, the fishway inlet can adapt to a larger range of riverway water level amplitude by designing a single fishway inlet or a few fishway inlets, the number of the fishway inlets can be effectively reduced, and engineering investment is remarkably reduced; the inlet flow speed of the fishway inlet can be fully adjusted only by controlling the number of the floating boxes, the actual operation period is easy to control, the good fish luring effect can be achieved, the novel single-inlet flow speed adjusting structure capable of adapting t