Water-supplementing fishway inlet device with ecological gate

Abstract

The invention relates to a water-supplementing fishway inlet device with an ecological gate, and belongs to the field of ecological environments for water conservancy projects. The water-supplementing fishway inlet device with the ecological gate is composed of the ecological gate, two water-supplementing port retaining walls, an energy dissipation grating, three fishway inlet sidewalls, two control gates, two fishway inlets, a force dissipation pool, a force dissipation ridge, a gate water-supplementing port, a water outlet port, two fish-collecting retaining walls, a broken line retaining wall and the like. During running of the device disclosed by the invention, a discharged water flow of the ecological gate enters a downstream position through the force dissipation pool, the gate water-supplementing port and the energy dissipation grating, and is converged with a water flow at the water outlet port to form a fish-luring water flow for luring fishes to enter a fishway; and a downstream main flow of the ecological gate is away from a fish-luring channel under the action of the broken line retaining wall, so that conditions in the fish-luring channel meet the upstream sailing of the fishes. The device disclosed by the invention has the advantage of a large adaptation range of water level changes, and moreover, water consumption is reduced, and lots of water resources are saved; and water-supplementing, fish-luring and fish-passing facilities are integrated, thus the fish-passing efficiency is greatly improved.

Description

technical field [0001] The invention relates to a water replenishment experimental device for fishway inlets, in particular to an ecological gate water replenishment type fishway inlet device integrating water replenishment with ecological gates and fish attraction, and belongs to the field of ecological environment of water conservancy projects. Background technique [0002] After the completion of the water conservancy project in the water conservancy project, the migration route of the fish was blocked, and the longitudinal connectivity of the river was destroyed, so that the fish in the lower reaches of the river could not go up to reproduce, and the fish in the upper reaches could not migrate back to the downstream. With the development of the continuous system theory of rivers, the advantages of the internal environment of rivers and continuous water bodies in terms of ecological diversity and impact resistance have been paid more and more attention. It is an urgent ne...

AI Technical Summary

Problems solved by technology

However, due to the lack of further understanding of the living habits of migrating fish and the overall layout of the project, the flow pattern at the entrance of the fishway is more complicated, making it difficult for fish to find the entrance of the fishway when tracing upwards, which seriously affects the fish passing efficiency of the fishway

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