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Dam convenient for fish to swim back

A dam and fish technology, applied in the field of dams that facilitate fish migration, can solve problems such as difficult migration of fish, ecological impact, and poor effect.

Pending Publication Date: 2022-03-11
CHONGQING WATER RESOURCES & ELECTRIC ENG COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the dam is built, the upstream and downstream will be isolated, making it difficult for downstream fish to swim upstream, causing ecological impacts. Currently, fishways are built for fish to swim back, but the overall effect is not good. Many fish Humans are still unable to migrate through the fishway

Method used

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  • Dam convenient for fish to swim back

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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, this embodiment provides a dam that is convenient for fish to swim, including a dam body 1, a holding pipe 2 and a fish inlet cylinder 19, the holding pipe 2 is arranged upstream of the dam body 1, and the top of the holding pipe 2 is open , the accommodation pipe 2 is located below the highest water level in the upstream of the dam body 1, the fish inlet tube 19 passes through the side wall of the dam body 1 and the accommodation tube 2 and enters into the accommodation tube 2, and the fish inlet tube 19 is inclined downward as a whole in the direction from the downstream to the upstream , the downstream end of the fish inlet tube 19 is located below the highest water level downstream of the dam body 1;

[0028] The side wall of the containing pipe 2 is fixed with a bracket 3, and the top of the bracket 3 is fixed with a mounting platform 4, the mounting platform 4 is located above the highest water level upstream of the dam body 1, and the m...

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Abstract

The dam comprises a dam body, a containing pipe and a fish inlet cylinder, the top of the containing pipe is open, and the fish inlet cylinder penetrates through the dam body and the side wall of the containing pipe to enter the containing pipe; a support is fixed to the side wall of the containing pipe, a mounting table is fixed to the top of the support, a closing plate is placed at the top end of the containing pipe, and a first rope is connected to the top end of the closing plate and connected with an output shaft of the first motor. A cover plate is slidably arranged on the inner wall of the containing pipe, a second rope is connected to the cover plate, and the second rope is connected with an output shaft of the second motor. A fish luring device is arranged in the containing pipe, a fourth rope is connected to the fish luring device, and the fourth rope is connected with an output shaft of a fourth motor; a fish twisting plate is arranged at the bottom of the containing pipe, the top wall of the fish twisting plate is connected with a third rope, the third rope is connected with an output shaft of the third motor, fishes on the downstream of the dam can conveniently swim back to the upstream, and the ecological influence caused after the dam is built is reduced.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a dam that facilitates the swimming of fish. Background technique [0002] A dam is a water-retaining structure that intercepts the water flow of a river channel to raise the water level or regulate the flow. Reservoirs can be formed to raise water levels, regulate runoff, and concentrate water heads for flood control, water supply, irrigation, hydroelectric power generation, and improved shipping. [0003] After the dam is built, the upstream and downstream will be isolated, making it difficult for downstream fish to swim upstream, causing ecological impacts. Currently, fishways are built for fish to swim back, but the overall effect is not good. Many fish Humans are still unable to migrate through the fishway. Contents of the invention [0004] Aiming at the defects in the prior art, the present invention provides a dam that facilitates the migration o...

Claims

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Application Information

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IPC IPC(8): E02B8/08
CPCE02B8/085Y02A40/60
Inventor 刘栋
Owner CHONGQING WATER RESOURCES & ELECTRIC ENG COLLEGE
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