Communicating type still water fish way

A fishway and still water technology, which is applied in the fields of dam fish passing facilities and water conservancy and hydropower pivot gates, can solve the problems of low fish passing efficiency, high energy consumption, difficult management and operation, etc., and achieve improved fish passing efficiency, low cost and reduced resistance Effect

Pending Publication Date: 2017-07-07
POWERCHINA XIBEI ENG
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above fishways, no matter how different their structures are, have many deficiencies, such as low fish passing efficiency, difficult management and operation, high energy consumption, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communicating type still water fish way
  • Communicating type still water fish way

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a connected still water fishway provided by the embodiment of the present invention includes an upstream outlet section 1, an upstream and downstream water communication section 2, a migrating fish waiting section 3, and a downstream inlet section 4 sequentially connected from upstream to downstream; An upstream outlet section maintenance gate 5 is provided between the upstream outlet section 1 and the upstream and downstream water body communication section 2; a waiting section working gate 6 is provided between the upstream and downstream water body communication section 2 and the migrating fish waiting section 3; Between the waiting section 3 of migrating fish and the downstream entrance section 4, there is a working gate 7 of the downstream entrance section.

[0023] Wherein, when gathering the migrating fish in the river channel, the downstream inlet section working gate 7 is opened all the time, when the migrating fish enters the migrati...

Embodiment 2

[0029] On the basis of Example 1, such as figure 1 As shown, the upstream outlet section 1 is for migratory fish to enter and exit upstream, and it is arranged on the retaining dam section away from the spillway and the inlet dam section or on the bank of the upstream away from the spillway and the inlet dam section; the upstream and downstream water body communication section 2 It is arranged in the dam body or on the abutments on both sides of the dam body; the downstream inlet section 4 is arranged on the bank of the river where migratory fish gather behind the dam. This arrangement can better adapt to the landform, facilitate construction, and reduce construction costs, especially for existing projects that are not provided with fishways, which can be conveniently supplemented.

Embodiment 3

[0031] On the basis of Example 1, such as figure 1 As shown, the upstream and downstream water communication section 2 includes a first arc-shaped communication section 9 connected to the upstream outlet section 1, a vertical communication section 10 connected to the lower end of the first arc-shaped communication section 9, and the vertical communication section 10 connected to the vertical The second arc-shaped communication section 11 connected by the communication section 10, the horizontal communication section 12 connected with the second arc-shaped communication section 11, and the upstream and downstream water body communication section 2 with this structure can improve the fish passing efficiency of the fishway.

[0032] Wherein, the vertical connecting section can be vertical or inclined, which is determined according to factors such as the landform where it is located.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of fish passing facilities of gates and dams of key water conservancy and hydropower control projects, in particular to a communicating type still water fish way. The communicating type still water fish way comprises an upstream outlet section, an upstream and downstream water body communicating section, a migration fish school waiting section and a downstream inlet section, wherein the upstream outlet section, the upstream and downstream water body communicating section, the migration fish school waiting section and the downstream inlet section are sequentially connected from the upstream side to the downstream side. An upstream outlet section bulkhead gate is arranged between the upstream outlet section and the upstream and downstream water body communicating section. A waiting section service gate is arranged between the upstream and downstream water body communicating section and the migration fish school waiting section. A downstream inlet section service gate is arranged between the migration fish school waiting section and the downstream inlet section. According to the communicating type still water fish way, the fish way is divided into multiple different functional sections, management is convenient, and the fish passing efficiency is high; the fish way is simple in design, flexible in arrangement, convenient and rapid to construct, low in manufacturing cost and good in application prospect, and especially for a built project without a fish way, the communicating type still water fish way can be conveniently arranged.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower pivot gates and dam fish passing facilities, in particular to a connected still water fishway. Background technique [0002] The existing fishway design mainly considers the upward habit of fish. In the downstream of gates and dams, fish often rely on the attraction of water flow to enter the fishway. Fish in the fishway need to rely on their own strength to overcome the flow velocity and swim upstream. The descending fish can go downstream through the fishway. Various fish passing facilities at home and abroad mainly contain fish passing fish, fish gate passing fish, fish lifting machine, fish collecting boat etc. at present both at home and abroad. No matter how different the structural forms are in the above-mentioned fishways, there are many deficiencies, such as low fish passing efficiency, difficult management and operation, and high energy consumption. Contents...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCE02B8/085Y02A40/60
Inventor 张春生
Owner POWERCHINA XIBEI ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap