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Ecological migration fishway

A fish pass and migration technology, applied in marine engineering, construction, climate change adaptation, etc., can solve problems such as slow water flow and difficulty in clearing silt, and achieve the effect of reducing silt, reducing ecological damage, and reducing workload

Active Publication Date: 2021-12-31
SINOHYDRO ENG BUREAU 4
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned technical problems, the embodiment of the present invention provides an ecological migratory fishway, which solves the problems of slow water flow and difficulty in cleaning mud

Method used

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Embodiment Construction

[0019] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. The present invention is by no means limited to any specific configurations and algorithms presented below, but covers any modification, substitution and improvement of elements, components and algorithms without departing from the spirit of the invention. In the following description, well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention.

[0020] Example em...

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Abstract

The embodiment of the invention provides an ecological migration fishway. The ecological migration fishway comprises a fishway body, wherein a narrow part is arranged in the fishway body close to a reservoir dam; the narrow part is formed by symmetrically arranging elliptical wallboards on the fishway side walls on the two sides of the narrow part; the middle part of each elliptical wallboard is a smooth surface, water inlet holes which are uniformly distributed are formed in the upstream part, and water outlet holes which are uniformly distributed are formed in the downstream part; and an impeller which is vertically installed is arranged in a space defined by each elliptical wallboard and the fishway side walls, and the impeller is driven to rotate by a motor, so that water flow in the space flows to the water outlet holes from the water inlet holes. According to the ecological migration fishway, water flow can be accelerated through the narrow part under the action of the impeller, and fish cannot be injured in the acceleration process, so that the safety of the fish in the migration fishway is guaranteed; and additionally, the impeller is vertically installed, so that the water flow of the whole channel section can be accelerated instead of being locally accelerated.

Description

technical field [0001] The invention relates to the technical field of concrete construction, in particular to an ecological migratory fishway. Background technique [0002] Due to the construction of the reservoir, many migratory fishes were unable to migrate, thus destroying the original ecological balance of the river, leading to the extinction of some fishes. The construction of ecological fishways around the reservoir can, in a certain sense, allow some fish to enter the ecological fishways to achieve the effect of "migration". However, due to the extremely small height difference of the ecological fishway, the water flow is slow; at the same time, there is a problem of cleaning the silt inside the ecological fishway, which usually needs to be cleaned regularly, and the cleaning process will destroy the ecological environment of the fish. Contents of the invention [0003] In view of the above-mentioned technical problems, the embodiment of the present invention prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCE02B8/085Y02A40/60
Inventor 曹军庞保平孙伟全李季张生宝张辉樊磊王成泰王辉朵玉贤
Owner SINOHYDRO ENG BUREAU 4
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