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Water taking structure for overloaded stream water-power engineering

A technology for hydropower engineering and sediment, applied in the field of water intake structure, can solve problems such as large-sized sand and gravel, clogging of grids, affecting water intake, etc.

Pending Publication Date: 2020-10-23
POWERCHINA CHENGDU ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The grille is easily blocked by debris such as large-diameter sand and stones or branches and weeds, which affects water intake;
[0004] 2. There are many large-sized sandstones that can pass through the grid interval, which is easy to block the water diversion channel downstream of the grid, resulting in difficulties in operation and maintenance

Method used

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  • Water taking structure for overloaded stream water-power engineering
  • Water taking structure for overloaded stream water-power engineering
  • Water taking structure for overloaded stream water-power engineering

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Embodiment 1

[0029] The technical problem to be solved in this application is to provide a grid water intake structure with simple structure and effective water intake and sand release.

[0030] The low retaining dam is used to retain water, and the downstream side of the retaining dam is equipped with graded steel grids. The slope of the steel grids is relatively steep. The steel grids are placed in the grid slots on the energy dissipation steps, and the steel grids can be disassembled.

[0031] When the river carries sediment and flows through the top of the retaining dam, the water flows through the grille into the pouring channel under the grille, and the sand and gravel are discharged from the surface of the grille dam to the downstream river, so as to achieve the purpose of water intake and sand discharge.

[0032] The technical scheme provided by the application has the following advantages:

[0033] 1) The multi-layer graded grille is adopted, and the grille surface can be set stee...

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Abstract

The invention discloses a water taking structure, particularly discloses a water taking structure for overloaded stream water-power engineering, and belongs to the technical field of design and construction of water-power engineering buildings. The water taking structure for overloaded stream water-power engineering has a little water taking effect. The water taking structure comprises a water retaining dam. The water taking structure further comprises a water pouring canal and an impurity removal mechanism. The water pouring canal is arranged on the water retaining dam at the downstream sidein the length direction of the water retaining dam, and sediment impurities in the water overflowing from the top of the water retaining dam are removed through the impurity removal mechanism, and water with no sediment impurities is output through the water pouring canal.

Description

technical field [0001] The invention relates to a water intake structure, in particular to a water intake structure for hydropower projects in rivers with many sediments, and belongs to the technical field of design and construction of water conservancy and hydropower engineering buildings. Background technique [0002] How to build hydropower projects on sediment-rich rivers and how to effectively prevent sand and take water has always been an important problem that plagues the project. To solve this problem, special technical research is usually carried out. Grid dam is an engineering measure that can solve the above problems, but common grid dams have the following problems: [0003] 1. The grille is easily blocked by debris such as large-diameter sand and stones or branches and weeds, which affects water intake; [0004] 2. There are many large-sized sandstones that can pass through the grid interval, which is easy to block the water diversion channel downstream of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/04E02B8/06E02B8/02
CPCE02B8/02E02B8/023E02B8/06E03B3/04
Inventor 唐志丹王平冉从彦杨怀德罗贞华彭文明
Owner POWERCHINA CHENGDU ENG
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