Fish migration channel with energy dissipation structure

A fish passing channel and channel technology, which is applied in water conservancy projects, sea area engineering, coastline protection, etc., can solve problems such as poor energy dissipation effect, difficult fish migration, complex structure, etc., to reduce energy loss and achieve remarkable energy dissipation effect , the effect of low operating costs

Pending Publication Date: 2022-04-12
CHINA JILIANG UNIV +1
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  • Claims
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AI Technical Summary

Problems solved by technology

The combined fishway takes advantage of some of the hydraulic characteristics of different fishways, but it has problems such as complex structure and difficult design
However, the energy dissipation effect of the traditional fishway is poor, and there is a problem that the flow velocity at the key position of the fish migration in the flow channel is high, which makes it difficult for the fish to migrate

Method used

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  • Fish migration channel with energy dissipation structure
  • Fish migration channel with energy dissipation structure
  • Fish migration channel with energy dissipation structure

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention can also be implemented in other ways different from those described here. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Such as figure 1 , figure 2 and image 3 As shown, the fish migration passage with energy dissipation structure disclosed by the present invention mainly includes an upstream fish passage 1, a first fish passage 2-1, a second fish passage 2-2, a downstream fish passage 3, a rest pool4. It is characterized in that two groups of fish passages are used, and each group of fish passages is formed by connecting a plurality of separated main-circuit basic units 8 in series. Two groups of passages for passing fish are arranged in opposite directions, and are connected by a rest pool 4 between them, so as to provide fishes with a long period of concentrated rest. The specific...

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Abstract

The invention belongs to the technical field of water conservancy and hydropower engineering and environmental protection, and discloses a fish migration channel which mainly comprises an upstream fish channel opening, a fish passing channel, a downstream fish channel opening and a rest pool, and the fish passing channel is formed by combining and connecting a plurality of separated main-loop basic units. According to the fish migration channel disclosed by the invention, the loop is separated from the main path by utilizing the structural design of separating the main-loop basic unit, and the purpose of dissipating energy of the main path is realized by virtue of the loop; meanwhile, the structure enables the main path to form a plurality of flow velocity areas, and a rest area and an upstream area are provided for fish migration. The influence of various buildings on the original river ecology in the water conservancy project is weakened, a harmonious water ecological environment can be established, the energy dissipation effect is good, the fluid speed in the fish migration channel is remarkably reduced, and the upstream energy consumption and migration difficulty of fishes are reduced. Meanwhile, the structure does not need to manually control a channel switch, has the characteristic of simple structure, and is convenient for construction and later operation and maintenance.

Description

technical field [0001] The invention relates to the technical field of water conservancy, in particular to a novel fish migration channel structure with an energy dissipation structure. Background technique [0002] Hydropower is an important source of clean electricity in my country. At present, the hydropower resources of major rivers in my country have been fully developed. However, the corresponding ecological problems are also increasingly prominent. Among the many ecological problems caused by hydropower projects, the obstruction of fish migration is a typical aquatic ecological problem. The hydraulic structures constructed in hydropower projects not only obstruct the river course, but also hinder the reproduction and reproduction of migratory fish, and may even lead to the extinction of some species of fish, seriously endangering the diversity of biological species. [0003] Fishway is the abbreviation of fish migration channel. Its function is to assist migratory f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08E02B8/06
Inventor 董梦雪徐茂森曾国瑞赵帅帅牟介刚周佩剑吴登昊谷云庆杨雪龙
Owner CHINA JILIANG UNIV
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