CN109577271A - A kind of lifting bottom sill certainly of regulation water flow - Google Patents
A kind of lifting bottom sill certainly of regulation water flow Download PDFInfo
- Publication number
- CN109577271A CN109577271A CN201811469361.5A CN201811469361A CN109577271A CN 109577271 A CN109577271 A CN 109577271A CN 201811469361 A CN201811469361 A CN 201811469361A CN 109577271 A CN109577271 A CN 109577271A
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- Prior art keywords
- bottom sill
- activity
- sill
- water flow
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of lifting bottom sill certainly of regulation water flow, belongs to hydraulic engineering technical field.Including forebay, fixed bottom sill, activity bottom sill, limited post, guide rail and floating ball.Activity bottom sill is mounted on the front side of fixed bottom sill, and activity bottom sill uses cuboid chan frame, uses the light materials fillers such as plastics inside activity bottom sill.A certain number of floating balls are installed in activity bottom sill upper end, 3 guide rails are installed between activity bottom sill and fixed bottom sill, 3 spacing columns are installed on the outside of activity bottom sill, are moved solely in the vertical direction for fixing activity bottom sill.When the water level of the frontal pool increases, floating ball will drive the raising of activity bottom sill, maintains bank headwater depth to be basically unchanged, bottom sill is made to play effective rectified action.The present invention can adapt to various SEA LEVEL VARIATIONs suitable for various Forebay of Pumping Station, effectively avoids the deposition of whirlpool and large scale reflux and silt, guarantees that pump installation is safely and efficiently run, energy-saving.The configuration of the present invention is simple, it is easy to implement, it has a extensive future, economic benefit is obvious.
Description
Technical field
The present invention relates to can belong to hydraulic engineering technology neck for regulating and controlling water flow from lifting bottom sill in a kind of Forebay of Pumping Station
Domain especially belongs to pump station engineering technical field.
Background technique
In pump station engineering, forebay is set between approach channel and intake pool, its effect is to guarantee that water flow is flowed to from approach channel
It can smoothly be spread during pumping plant intake pool, provide good fluidised form for intake pool.Bad fluidised form in forebay will draw
Sediment siltation in pond is played, long-term sediment siltation not only will have a direct impact on the fluidised form of intake pool and water pump works normally, and can also draw
Playing pump assembly efficiency reduces.Water conservancy diversion bottom sill is added in forebay, is caused facade whirlpool after bank to roll using bottom sill, is inhibited plane reflux,
By the abundant turbulent fluctuation diffusion of water flow after bank, can be good at improving Inlet flow pattern in forebay, so that the nearly water flow of satisfied row is obtained,
The measure construction is simple, economy and facility, significant effect.
In each parameter of bottom sill, bottom sill height plays very crucial effect to the improvement of forebay fluidised form.But existing
In engineering, the fixation bottom sill of use is highly constant.When the water level of the frontal pool is positive ordinary water level, bottom sill can play good rectification
Effect.When the water level of the frontal pool is more than ordinary water level, bottom sill height is relative to high water level at this time, and bank headwater depth is larger, not
Effective rectified action can be played, still has biggish reflux close in surface water in forebay, can not be provided for intake pool
Good fluidised form influences the safe operation of unit.
Summary of the invention
The purpose of the present invention is insufficient for the above-mentioned prior art, propose a kind of regulation water flow from lifting bottom sill, i.e., one
Kind eliminates the scheme of reflux using SEA LEVEL VARIATION automatic lifting bottom sill.
The present invention is achieved by the following technical solutions:
A kind of regulation water flow from lifting bottom sill, characterized in that including the fixation bottom sill of bottom of pond portion before being connected to, activity bottom sill,
Several floating balls, activity bottom sill are connect by guide rail with fixed bottom sill vertical sliding, and several floating balls pass through rope respectively and are connected to work
Dynamic bottom sill top.
Further, the activity bottom sill is placed in the upstream face of fixed bottom sill, and activity bottom sill uses cuboid chan frame
It is made, which uses light material filler.
Further, the global density of the activity bottom sill is greater than the density of water, and the density ratio of the two is 1.03.
Further, the back side of the activity bottom sill is slidably connected by several guide rails and the upstream face of fixed bottom sill,
The upstream face of the activity bottom sill is equipped with several spacing columns, and spacing column bottom is fixedly connected on preceding bottom of pond portion, every limit
It is slidably connected by guide rail between column and activity bottom sill, the guide rail at spacing column and the guide rail quantity phase at fixed bottom sill
Deng, and position corresponds.Guide rail at spacing column uses steel pipe, and the guide rail at fixed bottom sill uses channel steel.
Further, the guide rail at the fixed bottom sill, spacing column, the guide rail quantity at spacing column are 3, Gu
Determine the guide rail at bottom sill, the guide rail at spacing column is poured respectively in fixed bottom sill and spacing column.
Further, 10mm, guide rail, spacing column at fixed bottom sill are spaced between the activity bottom sill and fixed bottom sill
The guide rail at place distinguishes evagination 5mm.
Further, the fixed bottom sill, activity bottom sill width be B, the activity bottom sill with a thickness of 0.014B, institute
State fixed bottom sill with a thickness of 0.02B.
Further, the activity bottom sill height, rope lengths, the summation of floating ball radius are H, the activity bottom sill height
For 0.35H, fixed bottom sill height is 0.4H.
Further, the cross section of the spacing column is square, and side length is equal with the fixed thickness of bottom sill.
Beneficial effects of the present invention are as follows:
The present invention be in Forebay of Pumping Station can auto-control flow-shape fairing.In the present invention on front side of fixed bottom sill
(upstream face) is equipped with activity bottom sill, floating ball, guide rail and spacing column, and a certain number of floating balls are installed in activity bottom sill upper end, with rope
Floating ball is connect by rope with activity bottom sill top, and when the water level of the frontal pool increases, floating ball, which will drive activity bottom sill and increase, guarantees that bottom sill begins
Effective rectified action can be played eventually.The present invention can adapt to various water levels always, provide suitable for various Forebay of Pumping Station
Good flow-shape effectively avoids the deposition of whirlpool and large scale reflux and silt, guarantees that pump installation is safely and efficiently run,
It is energy-saving.The configuration of the present invention is simple, technically reliable is easy to implement, has a extensive future, and economic benefit is big.
Detailed description of the invention
Fig. 1 is the elevation from lifting bottom sill of present invention regulation water flow；
Fig. 2 is the top view from lifting bottom sill of present invention regulation water flow；
Fig. 3 is the sectional elevation from lifting bottom sill of present invention regulation water flow；
Fig. 3 (a) is the partial enlarged view in Fig. 3；
Fig. 4 is the cross section detail drawing from lifting bottom sill of present invention regulation water flow；
Fig. 5 is the three-dimensional perspective from lifting bottom sill of present invention regulation water flow；
Fig. 6 is forebay using fluidised form schematic diagram after the present invention certainly lifting bottom sill；
Fig. 7 is forebay not using fluidised form schematic diagram after the present invention certainly lifting bottom sill；
In figure: 1 fixed bottom sill, 2 activity bottom sills, 3 floating balls, 4 limited posts, 5 guide rails, 6 forebays, 7 water pumps.
Specific embodiment
The present invention is suitable for various pumping plant forebays, requires design drawing according to the design.
Activity bottom sill is mounted on the front side (upstream face of i.e. fixed bottom sill) of fixed bottom sill, and fixed bottom sill uses reinforced concrete
Soil structure, fixed bottom sill height are 0.4H(activity bottom sill height, rope lengths, the summation of floating ball radius are H), fixed bottom sill is suitable
Water (flow) direction with a thickness of 0.02B(fixing bottom sill, the width of activity bottom sill is B).Activity bottom sill uses cuboid-type steel frame,
Plastics or other light material fillers are used inside activity bottom sill, the global density of guarantee activity bottom sill is slightly larger than the close of water
It spends (density ratio 1.03 or so).
A certain number of floating balls are installed in activity bottom sill upper end, are connect floating ball with activity bottom sill top with rope, activity
The height of bottom sill is 0.35HLeft and right, activity bottom sill is with a thickness of 0.014B.Gap size is between activity bottom sill and fixed bottom sill
10mm or so installs 3 guide rails between activity bottom sill and fixed bottom sill, is cast in fixed bottom sill, evagination 5mm.In activity
3 spacing columns are installed on the outside of bottom sill, can only be moved in the vertical direction for fixing activity bottom sill.Stem height and fixed bottom sill
Highly identical, the cross section of column is square, and it is identical that side length with fixed bottom sill flows thickness downstream.3 are poured in column to lead
Rail, evagination 5mm.Column and column guide rail position are corresponding with fixed bottom sill guide rail position.The material of guide rail uses stainless steel, floats
The material of ball is using plastics or glass reinforced plastic etc..
The present invention is by obtaining to a large amount of numerical simulation and test data analyzer reasoning.Fig. 6 is forebay using this
From fluidised form schematic diagram after lifting bottom sill, Fig. 7 is that forebay does not use the present invention from fluidised form schematic diagram after lifting bottom sill for invention.Such as Fig. 6
Shown, when the water level of the frontal pool increases, floating ball, which will drive activity bottom sill and increase, guarantees that bottom sill can play effective rectification always and make
With, the deposition of whirlpool and large scale reflux and silt is effectively avoided, guarantees that pump installation is safely and efficiently run, it is energy-saving.
Claims (9)
1. a kind of lifting bottom sill certainly of regulation water flow, characterized in that including the fixation bottom sill (1) of bottom of pond portion, activity before being connected to
Bottom sill (2), several floating balls (3), activity bottom sill are connect by guide rail (5) with fixed bottom sill vertical sliding, and several floating balls lead to respectively
It crosses rope and is connected to activity bottom sill top.
2. a kind of lifting bottom sill certainly of regulation water flow according to claim 1, characterized in that the activity bottom sill is placed in solid
Determine the upstream face of bottom sill, activity bottom sill is made of cuboid chan frame, which uses light material filler.
3. a kind of lifting bottom sill certainly of regulation water flow according to claim 2, characterized in that the entirety of the activity bottom sill
Density is greater than the density of water, and the density ratio of the two is 1.03.
4. a kind of lifting bottom sill certainly of regulation water flow according to claim 1, characterized in that the backwater of the activity bottom sill
Face is slidably connected by several guide rails and the upstream face of fixed bottom sill, and the upstream face of the activity bottom sill is equipped with several spacing columns
(4), spacing column bottom is fixedly connected on preceding bottom of pond portion, is slided and is connected by guide rail between every spacing column and activity bottom sill
It connects, the guide rail at spacing column is equal with the guide rail quantity at fixed bottom sill, and position corresponds.
5. a kind of lifting bottom sill certainly of regulation water flow according to claim 4, characterized in that leading at the fixed bottom sill
Rail, spacing column, the guide rail quantity at spacing column are 3, the guide rail at fixed bottom sill, the guide rail difference at spacing column
It pours in fixed bottom sill, in spacing column.
6. a kind of lifting bottom sill certainly of regulation water flow according to claim 4, characterized in that the activity bottom sill and fixation
10mm is spaced between bottom sill, the guide rail at fixed bottom sill, the guide rail at spacing column distinguish evagination 5mm.
7. a kind of lifting bottom sill certainly of regulation water flow according to claim 1, characterized in that the fixed bottom sill, activity
The width of bottom sill is B, the activity bottom sill with a thickness of 0.014B, the fixed bottom sill with a thickness of 0.02B.
8. a kind of lifting bottom sill certainly of regulation water flow according to claim 1, characterized in that the activity bottom sill height,
Rope lengths, the summation of floating ball radius are H, and the activity bottom sill height is 0.35H, and fixed bottom sill height is 0.4H.
9. a kind of lifting bottom sill certainly of regulation water flow according to claim 4 or 7, characterized in that the spacing column
Cross section is square, and side length is equal with the fixed thickness of bottom sill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469361.5A CN109577271B (en) | 2018-11-28 | 2018-11-28 | Self-lifting bottom ridge for regulating and controlling water flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469361.5A CN109577271B (en) | 2018-11-28 | 2018-11-28 | Self-lifting bottom ridge for regulating and controlling water flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109577271A true CN109577271A (en) | 2019-04-05 |
| CN109577271B CN109577271B (en) | 2020-10-30 |
Family
ID=65926699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811469361.5A Active CN109577271B (en) | 2018-11-28 | 2018-11-28 | Self-lifting bottom ridge for regulating and controlling water flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577271B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10298952A (en) * | 1997-04-23 | 1998-11-10 | Taisei Corp | Breakwater and damping method for wave energy |
| CN204350727U (en) * | 2014-12-25 | 2015-05-27 | 湖南源清环境工程有限公司 | Ball float submerged plant planting bed |
| CN206646532U (en) * | 2017-03-09 | 2017-11-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Cofferdam with adjustable height |
| CN108824380A (en) * | 2018-05-21 | 2018-11-16 | 昆明理工大学 | A kind of energy-dissipating structure and its adjusting method of adjustable stilling pond end sill height |
-
2018
- 2018-11-28 CN CN201811469361.5A patent/CN109577271B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10298952A (en) * | 1997-04-23 | 1998-11-10 | Taisei Corp | Breakwater and damping method for wave energy |
| CN204350727U (en) * | 2014-12-25 | 2015-05-27 | 湖南源清环境工程有限公司 | Ball float submerged plant planting bed |
| CN206646532U (en) * | 2017-03-09 | 2017-11-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Cofferdam with adjustable height |
| CN108824380A (en) * | 2018-05-21 | 2018-11-16 | 昆明理工大学 | A kind of energy-dissipating structure and its adjusting method of adjustable stilling pond end sill height |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109577271B (en) | 2020-10-30 |
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