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Energy dissipation structure and method for water resources and hydropower engineering

A hydraulic and energy dissipation technology, applied in water conservancy projects, water conservancy engineering equipment, sea area engineering, etc., can solve problems such as energy dissipation and scour prevention in difficult water flows, and poor energy dissipation effects

Pending Publication Date: 2020-07-17
CAMCE WHU DESIGN & RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the drainage structures of water conservancy and hydropower projects, the drainage structures are limited by factors such as terrain, height difference, and the overall layout of other buildings in the hub. Chong problem
Using a single conventional bottom flow energy dissipation, deflected flow energy dissipation or surface flow energy dissipation often has a poor energy dissipation effect

Method used

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  • Energy dissipation structure and method for water resources and hydropower engineering
  • Energy dissipation structure and method for water resources and hydropower engineering
  • Energy dissipation structure and method for water resources and hydropower engineering

Examples

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Embodiment 1

[0035] combine Figure 1 to Figure 6 As shown, this embodiment provides a hydraulic energy dissipation structure, which includes: a differential deflecting nose sill 1, a stilling pond 2, a water inlet 3, a steep groove section 4, a stepped steep slope 5, and a stilling pond 6 and flood discharge channel 7; the differential type deflecting nose sill 1 is arranged at the downstream end of the discharge structure; the stilling pond 2 is arranged at the downstream end of the differential deflecting flow nose sill 1, the The stilling pond 2 is sequentially connected with the eight-character water inlet 3, the steep groove section 4, the stepped steep slope 5, the stilling pond 6 and the flood discharge channel 7; the flood discharge channel 7 is connected with the natural river channel 10. In this embodiment, at the end of the flood discharge structure 8, the energy dissipation method of deflecting flow + stilling pond 2 + stepped steep slope 5 + stilling pond 6 and flood discharg...

Embodiment 2

[0040] This embodiment is further refined on the basis of the first embodiment above, and is mainly aimed at the technical solution of the differential nose sill 1 . Of course, the second embodiment includes the technical content disclosed in the first embodiment, and the same technical content as the first embodiment will not be repeated. The differences between the second embodiment and the first embodiment will be described below.

[0041] In this embodiment, preferably, the bottom of the differential type deflecting nose sill 1 is respectively provided with tooth walls that go deep into the bedrock; the bottom of the differential deflecting nose sill 1 is consolidated with slurry filling The slurry filling is arranged in the space between the tooth wall and the bedrock; the bottom of the slurry filling is provided with a mortar bolt. Specifically, the differential nose sill 1 is 13.8m long, the high sill is 1.50m high, the sill angle is 30°, the arc radius is 13m, the low ...

Embodiment 3

[0044]This embodiment is further refined on the basis of the first embodiment above, mainly for the technical solution of the stilling pond 2 . Of course, the third embodiment includes the technical content disclosed in the first embodiment, and the same technical content as the first embodiment will not be repeated. The differences between the third embodiment and the first embodiment will be described below.

[0045] In this embodiment, preferably, an overflow dam 11 is provided on the side of the stilling pond 2 ; the overflow dam 11 is connected to the figure-eight water inlet 3 . Specifically, a reinforced concrete stilling pond 2 with a width of 20m, a length of 50m and a depth of 6m is set up at the end of the nose sill. The WES utility weir. Stilling pond 2 is lined with reinforced concrete.

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Abstract

The invention relates to the technical field of water conservancy and hydropower, in particular to an energy dissipation structure and method for water resources and hydropower engineering. The energydissipation structure comprises a differential flow pick-up nose sill, a force elimination pond, a splayed water inlet, a steep groove section, a step type steep slope, a force elimination pool and aflood discharge channel; the differential-type flow pick-up nose sill is arranged at the downstream end of a flood discharging building; the force elimination pond is arranged at the downstream end of the differential type flow-picking nose sill, and is sequentially connected with the splayed water inlet, the steep groove section, the step type steep slope, the force elimination pool and the flood discharge channel; and the flood discharge channel is connected with a natural river channel. According to the hydraulic energy dissipation structure, the energy dissipation mode of the differentialflow pick-up nose sill, the force elimination pond, the step type steep slope, the force elimination pool and the flood discharge channel is adopted at the tail end of the flood discharging building,and through continuous four-time energy dissipation, the problems that discharged water at the tail end of the flood discharging building cannot safely and stably enter the natural river channel dueto factors such as the leakage angle, the terrain height difference and the water flow groove return can be solved, and the technical problem that the water flow energy dissipation of the tail end ofthe flood discharging building is solved indeed.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower, in particular to a hydraulic energy dissipation structure and method. Background technique [0002] At present, in the drainage structures of water conservancy and hydropower projects, the drainage structures are limited by factors such as terrain, height difference, and the overall layout of other buildings in the hub. Chong problem. Using a single conventional underflow energy dissipation, deflecting flow energy dissipation or surface flow energy dissipation often has poor energy dissipation effects. Therefore, what kind of energy dissipation method can be used to avoid the discharge of water from scouring the riverbed and damaging other buildings is a technical problem that needs to be solved urgently at present. [0003] The information disclosed in this Background section is only intended to enhance the understanding of the general background of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/06E02B1/00
CPCE02B1/00E02B8/06
Inventor 陈小林申慧王明学常春霞刘建军于新艳牛世珍李彦军李斌郑旭李帅向远耿婷婷孙丽
Owner CAMCE WHU DESIGN & RES CO LTD