Ecological fish way with staggered spacer block structures

A staggered arrangement and spacer technology, applied in the field of ecological fishway and fishway, can solve the problems of unsatisfactory and poor operation effect of fishway, only suitable for fish that like to migrate on the surface and have jumping habits, and the design is difficult. , to avoid the supersaturation of dissolved oxygen in the water flow, ensure the safety of fish, and reduce physical energy consumption.
CN104480913AActive Publication Date: 2015-04-01HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HOHAI UNIV
Publication Date
2015-04-01

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Abstract

The invention discloses an ecological fish way with staggered spacer block structures. The ecological fish way comprises fish way side walls, a bottom plate, a plurality of hollow spacer block structures and the like, each spacer block structure comprises a straight section partition plate and an arc section partition plate, flow regulating water passing joints are arranged on the straight section partition plates and the arc section partition plates, the spacer block structures are arranged on the inner fish way side walls, the straight section partition plates are obliquely crossed with the inner side walls, an extended section is formed between the arc section partition plates of two opposite spacer block structures, a certain distance is reserved between the adjacent spacer block structures, and the fish way is divided into a plurality of cell compartments which are mutually communicated through the extended sections among the arc section partition plates. First cavities are formed in the fish way side walls, and driving plates are arranged inside the first cavities. Water flow in the ecological fish way naturally wriggles, the shortcoming of high water flow speed at a vertical slot of a traditional vertical slot fish way is effectively avoided, the influence of water conservancy and hydropower projects on fish migration can be reduced, and ecological protection of rivers is facilitated.
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Description

technical field

[0001] The invention relates to a fishway, in particular to an ecological fishway with a staggered partition structure, and belongs to the technical field of migratory fish crossing dam protection. Background technique

[0002] The protection of aquatic organisms is an important issue that needs to be considered in the construction of water conservancy and hydropower projects. Aiming at the protection of fish resources, the country has issued a number of relevant regulations and laws. In rivers around the world, people have built a large number of water conservancy and hydropower projects for flood control, power generation, irrigation, shipping, and water supply. However, dams raise water levels and block rivers, causing the open and continuous system of natural rivers to suffer from energy flow, A series of changes in material circulation and information transmission have changed the habitat conditions and hydrological regimes required for the survival of f...

Claims

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