Tunnel type nature fishway imitated fish-barring lifting device and method

A technology imitating nature and fishways, applied in water conservancy projects, sea area engineering, climate change adaptation, etc., can solve the problems of large water level fluctuations, large water level fluctuations, and a lot of time, achieving obvious energy dissipation, convenient excavation, and slowing down The effect of blocking influence

Active Publication Date: 2016-05-25
CHANGJIANG SURVEY PLANNING DESIGN & RES
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Problems solved by technology

However, due to the large fluctuations in the water level of fish passing upstream in some projects, it is difficult for ordinary fishway outlet ...

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  • Tunnel type nature fishway imitated fish-barring lifting device and method
  • Tunnel type nature fishway imitated fish-barring lifting device and method
  • Tunnel type nature fishway imitated fish-barring lifting device and method

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Embodiment Construction

[0042] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the present invention will be described in more detail through specific implementation.

[0043] Such as figure 1 Shown, the tunnel type imitation natural fishway designed by the present invention, it mainly utilizes fishway main body 4 to connect the downstream river bed 14 of power station building 8 and the waters of upstream reservoir 15. The fishway main body 4 is a tunnel type, arranged inside the mountain next to the powerhouse 8 of the power station. Considering factors such as the head difference between upstream and downstream, the water depth in the fishway main body (4) is designed to be 1.5 meters to 2.5 meters. Investigate the species of migratory fish in the river basin, record the species of the longest migratory fish group,...

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Abstract

The invention discloses a novel tunnel type nature fishway imitated fish-barring lifting device and relates to a fish passing facility for solving the upstream going problem of migratory fishes through a building across a river. The tunnel type nature fishway imitated fish-barring lifting device comprises a fishway inlet, a fishway inlet section, a tunnel connecting the inlet section with an outlet section, a fishway outlet and a fishway outlet section, wherein the fishway inlet and the fishway inlet section are connected with a downstream waterbed, the fishway outlet and the fishway outlet section are connected with an upstream reservoir. The tunnel type nature fishway imitated fish-barring lifting device comprises a fish-barring electric grid and a fish barring and collecting transfer system of a lifting transfer device. The tunnel type nature fishway imitated fish-barring lifting device is adopted for a water conservancy and hydropower junction in a high-mountain and defile region, can adapt to substantial change of reservoir water level and narrow-riverbed terrain, provides water temperature, flow and flowing speed suitable for migration of the migratory fishes, can simulate a natural aquatic environment of the river and decreases the excavated volume more remarkably, and no artificial high and steep slope is formed. In addition, a tunnel type imitated nature fishway is smaller in occupied area, water and soil loss caused by open cutting is reduced, and the influence on the ecological environment including terrestrial plants, animals and the like is smaller.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering and environmental protection engineering, and relates to a fish-passing facility for migratory fish to go up through a river-blocking structure, more specifically, a new type of tunnel-type fish-blocking lifting device imitating a natural fishway and the method it uses. Background technique [0002] Migration is the periodic directional back and forth movement of fish due to the influence of physiological requirements, genetics and external environmental factors. Migration is a characteristic formed during the phylogenetic process of fish, and it is a long-term adaptation of fish to the environment, which can enable the population to obtain more favorable living conditions and reproduce better. Nowadays, in order to obtain water energy, human beings build dams on natural rivers, which block the migration channels of fish and seriously damage the natural ecological environment in the r...

Claims

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Application Information

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IPC IPC(8): E02B8/08
CPCY02A40/60E02B8/08E02B8/085
Inventor 钮新强周述达宋志忠朱世洪廖仁强朱虹
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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