Multi-stage superimposed arc type fish passage and fish passing method

A fishway and fish school technology, applied in sea area engineering, construction, climate change adaptation, etc., can solve the problems of too long fishway, high cost, reduced fish flow ability and continuous jumping ability, etc., to reduce interference , the effect of reducing tension

Active Publication Date: 2017-05-24
ANHUI UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: In order to solve the problem of too long fishway and high cost when the existing fishway technology is used in water control projects with medium and high water heads, at the same time, reduce the requirements of traditional fishway on fish flow a

Method used

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  • Multi-stage superimposed arc type fish passage and fish passing method
  • Multi-stage superimposed arc type fish passage and fish passing method
  • Multi-stage superimposed arc type fish passage and fish passing method

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings.

[0050] Such as Figure 1 to Figure 6 As shown, the multi-stage overlapping arc fishway of the present invention includes several stepped fishway units, fishway two wing walls 10 and a control system 11 .

[0051] Among them, the fishway unit is composed of a base plate 1, a gate 2, a folding plate 3, a support frame 4, an arm 5, a support hinge 6, a hoist 7, a wire rope 8 and an inductor 9. The shape of the bottom plate 1 is an upturned arc-shaped panel, the upper and lower ends of the bottom plates 1 of two adjacent fishway units are connected and fixed, and bearing blocks are arranged on both sides of the upper end of each bottom plate 1 . The gate 2 is an arc-shaped panel slightly smaller than the curvature of the base plate 1. The gate 2 is located on the base plate 1. The width of the gate 2 is the same as that of the base plate 1. The length of the arc-shaped pa...

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Abstract

The invention discloses a multi-stage superimposed arc type fish passage and a fish passing method and belongs to the field of ecological environment of fish passing buildings and hydraulic and hydroelectric engineering. The multi-stage superimposed arc type fish passage comprises a plurality of stages of fish passage units, a fish passage two-wing wall and a control system, wherein bottom plates and gates of the fish passage units are arc-shaped panels to form a superimposed arc type structure; foldable plates in the fish passage units can tend to be straight along the opening process of the gates and can cooperate with the gates to form water flow condition beneficial for upstream movement of the fishes. Compared with the conventional fish passage, the length of the fish passage can be reduced; the water flow condition of the fish passage can be adjusted; the fish passage is high in intelligent level, is applied to fish passing of dams with different water heads, is also applied to fishes with different swimming capabilities, and is capable of effectively protecting fish resources and maintaining the diversity of river ecosystems.

Description

technical field [0001] The invention relates to the field of fish-passing buildings and water conservancy and hydropower engineering ecological environments, in particular to a multi-stage overlapping arc fishway and a fish-passing method. Background technique [0002] In rivers all over the world, people have built a large number of water conservancy and hydropower projects for flood control, power generation, irrigation, shipping and water supply. A series of changes in circulation and information transmission will change the habitat conditions and hydrological regimes required for the survival of fish living in it, and ultimately affect fish resources. In order to protect natural fishery resources and ensure the continuity and diversity of aquatic ecosystems, the main restoration measures currently taken are to build fishways in hydropower and water conservancy projects to help fish migrate. [0003] Fishway is a kind of fish passing structure built at dams or natural ob...

Claims

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Application Information

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IPC IPC(8): E02B8/08
CPCY02A40/60E02B8/085
Inventor 戎贵文郑青辉戴会超赵彬如沈齐婷肖柏青王旭梁智龙向令郑雅欣
Owner ANHUI UNIV OF SCI & TECH
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