Fishway with automatically-lifting water level

A technology of water level and fishway, applied in water conservancy engineering, marine engineering, climate change adaptation and other directions, to achieve the effect of good adaptability, simple principle and simple equipment

Active Publication Date: 2014-10-15
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an automatic water level raising fishway, which can solve the problems of existing fishways, is short in length, easy to arrange, and is suitable for different terrain and geological conditio

Method used

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  • Fishway with automatically-lifting water level
  • Fishway with automatically-lifting water level
  • Fishway with automatically-lifting water level

Examples

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Embodiment Construction

[0028] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown in the figure, an automatic water level raising fishway, it includes three levels of fish chambers arranged in a ladder shape,

[0029] The inside of the water inlet wall 2 of the first level fish room 1 is equipped with the first siphon pipe 3 communicating with the outside, the first communicator 4 is communicated with the first level fish room 1, and the first siphon tube 4 is placed in the first communicator 4 and connected with the first twisted The first buoy 8 connected to the first pull rod 7 of the opening and closing door 6, the lower part of the water inlet wall 2 of the first stage fish room 1 is provided with the first fish pass hole 9 matched with the first twisted opening and closing door 6, A second siphon 11 is installed on the outside of the water outlet wall 10 of the first-level fish room 1, and a second fish gate hole 15 is provided on the water outlet wall 26 of the first-level fish...

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PUM

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Abstract

A fishway with automatically-lifting water level comprises three stages of fish chambers in ladder-like arrangement, wherein the inner side of a water inlet wall of the first stage of fish chamber is provided with a first siphon communicated with the outer part, the outer side of a water outlet wall of the first stage of fish chamber is provided with a second siphon, the second stage of fish chamber is communicated with a second communicating vessel, a second twisting type opening-closing door is matched with a second fish-passing gate opening, a water outlet wall of the second stage of fish chamber is provided with a third fish-passing gate opening, a turning plate gate is mounted on a fish outlet formed in the lower part of a water outlet wall of the third stage of fish chamber, and the height of the upper end of the first stage of fish chamber is greater than that of the upper end of the third stage of fish chamber. The fishway with the automatically-lifting water level can be used for solving the problems of the existing fishways, is smaller in length, convenient to arrange, suitable for different terrain and geology conditions, and well adaptive to the waterhead size change of the upstream and the downstream of a reservoir and the water level change of the reservoir; the water level automatically lifts, labor needed during passing of fish is saved, and fish in different sizes can pass; the whole fishway can automatically run without additional power, and energy is saved.

Description

technical field [0001] The invention relates to a fishway suitable for water conservancy projects, in particular to an automatic water level raising fishway suitable for solving the problem of fish migration in high-water-head pivot projects with various terrain conditions. Background technique [0002] Building dams on natural rivers to develop and utilize water resources will benefit the people, but it will also have some negative impacts on the ecological environment. For fish, it mainly blocks the migration channels of fish and destroys production. Spawning grounds and reduction of fishery resources. This is often devastating to migratory or semi-migratory fish that undergo extensive migrations as they complete their life history. The construction of water conservancy dams will inevitably affect the connection between upstream and downstream organisms. Some organisms cannot visit the habitat they need. Over time, this habitat may become extinct, and the entire watershed...

Claims

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Application Information

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IPC IPC(8): E02B8/08
CPCY02A40/60
Inventor 郭红民覃闪陈昌杰谢雷何志恒孙金猛
Owner CHINA THREE GORGES UNIV
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