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Vertical shaft type fishway

A shaft-type, fishway technology, applied in water conservancy projects, marine engineering, climate change adaptation, etc., can solve the problems of increasing the length of the fishway and improving the difficulty of fish migration, and achieves slowing down the flow velocity, reducing the difficulty of migration, and convenient construction. Effect

Active Publication Date: 2015-07-08
邳州辉腾经发建设有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The patent is a vertically upward ring column structure with a small footprint. However, the fishway in this patent is arranged in a circular upward manner, which increases the length of the fishway and increases the difficulty of fish migration.

Method used

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Embodiment Construction

[0014] Such as figure 1 , figure 2 As shown, the present embodiment has a rectangular shaft 1 (there are several air vents on the wall of the rectangular shaft 1), and several U-shaped canals 3 are arranged vertically upward and along the broken line inside the rectangular shaft 1 (see image 3 , the cross section of the U-shaped canal is U-shaped, which can concentrate the water flow), and the transfer pool 3 is arranged at the turning point of the broken line. In this example, the transfer pools 2 are arranged at both ends of the rectangular shaft 1 in the length direction, and the transfer pools 2 at both ends are arranged vertically upward at intervals. The water inlet of the U-shaped canal 3 is connected to the upper part of the transfer pool 3 at one end, and the water outlet is located above the middle part of the transfer pool 3 (slightly lower than the transfer pool at the water inlet) at the other end and the water outlet is located below the water level of the tr...

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Abstract

The invention relates to a vertical shaft type fishway and aims at providing a vertical shaft type fishway simple in structure, convenient to construct, small in occupied area and low in input cost so as to reduce fish migration difficulty. According to the technical scheme, the vertical shaft type fishway is characterized by comprising a rectangular vertical shaft, a plurality of transfer ponds are arranged in the vertical shaft and arranged at two ends in the length direction of the rectangular vertical shaft, the transfer ponds at two ends are upwards arranged at intervals, two adjacent transfer ponds at the two ends in the length direction of the rectangular vertical shaft are connected through a U-shaped beam, a water inlet of the U-shaped beam is communicated with the transfer ponds at one end, and a water outlet is located above the transfer ponds at the other end.

Description

technical field [0001] The invention relates to a shaft type fishway. Applicable to water conservancy and hydropower projects. Background technique [0002] Hydropower and water conservancy projects can provide relatively clean energy. However, the impact of hydropower and hydropower projects on the ecological environment is huge, especially on the ecological environment of local rivers. For example, the construction of dams increases the water level, blocks the river, and makes fish It is difficult to migrate, especially for fish that need to migrate to spawn, it almost brings disaster. At present, a more mature technology is to build fishways in hydropower and water conservancy projects, so that fish can migrate smoothly. As an ecological restoration measure to mitigate the impact of fish being blocked by hydropower and water conservancy projects, fishways have attracted more and more attention from all walks of life and environmental protection administrative department...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCY02A40/60E02B8/08
Inventor 苏琳
Owner 邳州辉腾经发建设有限公司
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