Design for fish ways of ecological dam

A technology for dams and dams, applied in water conservancy projects, marine engineering, climate change adaptation, etc., to achieve the effect of solving the contradiction between dam construction and ecological protection

Inactive Publication Date: 2014-04-23
丁钟宇
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] At present, there is no similar searc

Method used

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  • Design for fish ways of ecological dam
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Embodiment Construction

[0022] Refer to the following figure 2 It is an illustration of the planning renderings of the proposed Poyang Lake Ecological Water Conservancy Project announced in 2008.

[0023] The picture shows the planning effect of the proposed Poyang Lake Ecological Water Conservancy Project located between Changling in Lushan District and Pingfeng in Hukou County

[0024] Layout of the pivot project The dam site of the Poyang Lake Water Conservancy Project is located in the waterway of Poyang Lake, about 12km away from Xingzi County, and about 27km down to the confluence of the Yangtze River. The entire watershed area of ​​the Poyang Lake water system. On the left bank of the dam site is Changling Mountain with a peak elevation of 129m; on the right bank is Pingfeng Mountain with a peak elevation of 149.2m; the lake between the two mountains is about 2.8km wide. The terrain at the dam site is relatively symmetrical, both banks are rocky slopes, and the terrain and geological condit...

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Abstract

The invention relates to the design for fish ways of an ecological dam, in particular to a rotating door structure which can be driven by water power or electric power and can allow fish to freely come in and go out of the two sides of the dam in a wet season or in a dry season. The problem of contradiction between dam building and ecological protection is well solved. The rotating door structure is horizontally located in a dam body and communicated with a water body on the high water level side of the dam and a water body on the lower water level side of the dam through a duct. A lower water rotating door and an upper water rotating door form a set, spindles of the two doors are meshed through gears, the rotating directions of the two doors are opposite, the lower water rotating door is a driving rotating door and rotated under the push of high water level side water power, and the upper water rotating door is a driven rotating door and pushed by the lower water rotating door through the gears. The length and the width of the lower water rotating door are slightly larger than the length and the width of the upper water rotating door, and therefore it is guaranteed that the pushing force of the lower water rotating door is larger than resistance of the upper water rotating door.

Description

technical field [0001] The invention relates to the fishway design of an ecological dam, in particular to a revolving door structure that can be driven by hydraulic power or electric power and can allow fish to freely enter and exit the dam no matter in a wet season or a dry season. Background technique [0002] How to reduce the ecological hazards of dam construction has always been a difficult subject, but there are also miracles. Dujiangyan is a model. This large-scale water conservancy project integrates irrigation, flood control, and provision of domestic and industrial water. It embodies the wisdom of the ancient Chinese people, with scientific design and reasonable layout, and successfully solved many complex water conservancy engineering problems such as fish mouth water diversion, Feishayan flood discharge and sand discharge, Baopingkou water diversion, etc., so that the water resources of Minjiang River are fully utilized. get used. Plus easy maintenance. The cos...

Claims

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Application Information

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IPC IPC(8): E02B8/08
CPCY02A40/60
Inventor 丁钟宇
Owner 丁钟宇
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