Miniature ecological water conservancy power station

Abstract

The invention discloses a miniature ecological water conservancy power station, and belongs to the technical field of design and construction of water conservancy and hydropower engineering buildings.The miniature ecological water conservancy power station is stable in running operation, suitable for being used under the situations that the water-carrying capacity is low, the water level of a reservoir area is low, and the water storage capacity is small, and is combined with a fishway system. The miniature ecological water conservancy power station comprises a closure water retaining dam anda dam-toe water diversion power generation system, and further comprises a capturing system and a transporting mechanism, breeding migration fish groups located in a downstream river channel are induced to a fish inducing capturing area on the downstream side of the closure water retaining dam through tail water drained by the dam-toe water division power generation system, the breeding migrationfish groups induced to the fish inducing capturing area on the downstream side of the closure water retaining dam are induced and collected through the capturing system, and the breeding migration fish groups after being induced and collected are transported to the river channel on the upstream side of the closure water retaining dam through the transporting mechanism.

Description

technical field [0001] The invention relates to a water conservancy power station, in particular to a miniature ecological water conservancy power station, which belongs to the technical field of design and construction of water conservancy and hydropower engineering buildings. Background technique [0002] A fishway is a channel for fish to migrate. In popular language, some fishes have the habit of migrating from the lower reaches of the river to the upper reaches of the river to spawn. When the river is cut off due to human reasons such as the construction of a dam, the passage for the fish to migrate upstream will be destroyed. . In order to protect the habits of fish, it is necessary to build an artificial tank across the dam as a passage for fish to migrate, which is called a fishway. The water flow enters the fishway from the upstream and flows out of the fishway from the downstream, but the fish enters the fishway from the downstream and swims out of the fishway fr...

AI Technical Summary

Problems solved by technology

The main disadvantages of this structure are: 1. The outlets of the fishways are all arranged upstream, and the length along the river is relatively long. The corresponding excavation or concrete works are relatively large, and the investment in the fishway project is relatively large; 2. The number of fishway outlets is relatively large. There are many, and it is necessary to open and close each gate in time according to the upstream water level. When the upstream water level changes greatly and frequently, the operation control of the fishway exit gate is also relatively cumbersome.

The main disadvantages of this structure are: 1. In order to meet the requirements of water level variation, multiple fishway outlets need to be set up along the dam axis in the upstream, which cannot be applied to retaining dams in narrow valleys; 2. Since each fishway outlet needs to be equipped with 1 It is necessary to open and close each gate in time according to the upstream water level. When the upstream water level fluctuates greatly and frequently, the operation control of the fishway exit gate is also relatively cumbersome.

However, because the water flow is cut off by the retaining dam, fish schools with migratory habits cannot migrate upstream to spawn

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