Fish passing facility for rivers

A technology for passing fish facilities and streams, applied in the field of fish passing facilities, can solve the problems of unfavorable collection of upstream fish, discomfort, general fish passing effect, etc., and achieve the effect of promoting fish gene exchange

Pending Publication Date: 2020-02-04
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fish-passing facilities are either not suitable for setting in stream waters with shallow water depth and small flow, or are not conducive to collecting upward-tracking fish, and the fish-passing effect is mediocre

Method used

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  • Fish passing facility for rivers

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] Such as figure 1 As shown, a fish passing facility for a stream includes a fish fence 100, a fish collection channel 200 and a fish collection box 300; There is a fish inlet structure 210 with the size of the inlet end larger than the size of the outlet end. The side of the fish collection box 300 is provided with a tapered fish inlet 301, and the fish collection box 300 is also provided with a water inlet structure; The fish inlet of the passage 200 is embedded in the installation port 110 , and the fish collection box 300 is connected with the fish outlet of the fish collection passage 200 through the tapered fish inlet 301 .

[0018] The fish-passing facility for streams is mainly used in stream waters with narrow channels and shallow water depths during the fish-passing season, so as to effectively collect upstream fish and assist upstream fish to cross the dam....

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Abstract

The invention discloses a fish passing facility beneficial for collecting upstream fish and used for rivers. The fish passing facility used for the rivers is mainly formed by a fish blocking railing,a fish collecting channel and a fish collecting box. By means of the fish blocking railing, under the circumstance of not influencing overflowing, the upstream fish are blocked, and forced to swim into the fish collecting channel from a fish inlet of the fish collecting channel. Due to the fact that a fish input structure with the inlet end size larger than the outlet end size is arranged in the fish collecting channel, once the upstream fish penetrate through the fish input structure, the upstream fish cannot escape from the fish collecting channel easily, the upstream fish continuing to swimupstream can flow out from a fish outlet of the fish collecting channel and then enter the fish collecting box from the conical fish inlet of the fish collecting box, the conical fish inlet can ensure that the upstream fish cannot escape from the fish collecting box easily, the upstream fish collected in the fish collecting box can be transferred to a river water area of the upstream of a water junction through personnel or a transferring system, thus gene exchange of upstream and downstream fish is promoted, and the river aquatic ecosystem is protected to the maximum degree.

Description

technical field [0001] The invention relates to a fish passing facility, in particular to a fish passing facility for streams. Background technique [0002] Fish passing facilities are one of the important measures to satisfy fish migration and promote fish gene exchange upstream and downstream of the dam site. At present, major water conservancy projects are required to be equipped with fish passing facilities to help fish pass through dams. Compared with large rivers and rivers, the species diversity of aquatic ecosystems in stream waters is lower, the ecosystem is more fragile, and the significance of protection is more important. Because although the water conservancy projects built on the big rivers have blocked the river connectivity, fish can still find suitable habitats in the waters between the water conservancy projects, for example: the water area at the end of the reservoir of the power station; and the design of the water conservancy projects of the big rivers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCE02B8/08E02B8/085Y02A40/60
Inventor 张宏伟郎建魏凡吴迪文典康昭君唐剑韬
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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