CN109235546A - Forebay of Pumping Station adjustable plate-type column - Google Patents
Forebay of Pumping Station adjustable plate-type column Download PDFInfo
- Publication number
- CN109235546A CN109235546A CN201811436341.8A CN201811436341A CN109235546A CN 109235546 A CN109235546 A CN 109235546A CN 201811436341 A CN201811436341 A CN 201811436341A CN 109235546 A CN109235546 A CN 109235546A
- Authority
- CN
- China
- Prior art keywords
- adjustable plate
- forebay
- type column
- rotary shaft
- pumping station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/04—Free-flow canals or flumes; Intakes
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Forebay of Pumping Station adjustable plate-type column, belongs to hydraulic engineering technical field.Including be placed in forebay rotary shaft, adjustable plate, positioning pier, which is located in forebay, before intake pool (runner).The column section of adjustable plate-type column is circular ring shape and rectangle, and adjustable plate-type column cope level is equal with peak level, and adjustable plate-type column bottom surface bevel edge and direction of flow are in (30~40) °；Adjustable plate-type column uses precast reinforced concrete structure or metal component, and rotary shaft uses stainless steel tube, and adjustable plate-type column can rotate ± 10 ° around rotary shaft, be equipped with limit pier.The variation for adapting to come flow, reaches optimal water flow controlling effect.The present invention is suitable for side-direction forbay, and the reflux size and location before capable of improving intake pool (runner) makes water flow is more smooth to enter in runner, the more stable operation of water pump assembly.
Description
Technical field
The present invention relates to a kind of Forebay of Pumping Station adjustable plate-type columns, control whirlpool for forebay, belong to hydraulic engineering technology neck
Domain.
Background technique
Pump works is intake followed by water-drawing channel, forebay, intake pool.Forebay for uniform fluid flow smoothly from approach channel into
Enter intake pool, creates good hydraulics for water pump operation and play an important role.The flow effect of water flow depends on its water flow
Uniform spread condition, forebay diffuser is longer, and water flow flowing in forebay is smooth.Forebay diffuser is shorter, forebay water flow movement disorder.
Generally laterally forebay diffuser is shorter, and incoming flow, which needs to turn, enters forebay, and water flow is difficult to uniformly spread, such as Fig. 6 (a) institute
Show, the undesirable flow-shape such as reflux whirlpool easy to form can also cause to vibrate when serious, make an uproar to influence the efficiency of water pump
Phenomena such as sound, cavitation, influences the normal operation of water pump.Therefore, improve forebay fluidised form, eliminate and weaken reflux and vortex in pond,
So that the flow velocity of tunnel inlets section and flow direction is evenly distributed is the important channel for improving pump efficiency.Usual existing adjusting water flow
Diversion pier be fixed, however the flow of pumping plant is variation, and the direction of bias current and range can all change, and influence
The effect of diversion pier regulation water flow, it is necessary to improve.
Summary of the invention
The present invention relates to a kind of Forebay of Pumping Station adjustable plate-type column, column is made into the movable knot that can change angle
Structure guarantees pumping plant efficient operation to adapt to the water flow controlling needs of different flow, different water (flow) directions.
Technical scheme is as follows:
A kind of Forebay of Pumping Station adjustable plate-type column, including lateral forebay and intake pool, characterized in that before the column is set to
The corner in pond, the column include that adjustable plate, rotary shaft and two limit piers, the rotary shaft are fixedly connected on forebay bottom
Portion, the adjustable plate middle part are equipped with sleeve, and the sleeve of adjustable plate is placed on rotary shaft, and can rotate relative to rotary shaft, two limits
Position pier is respectively placed in the two sides of adjustable plate, for controlling to adjust the rotation amplitude of plate.
Further, which is located on the outside of bend, and the width of the forebay is B, and column is at a distance from intake pool
(1.5~2)B。
Further, between one of limit pier and the line and another limit pier and the line of rotary shaft of rotary shaft
Angle be 20 °.
Further, the adjustable plate plate face and direction of flow are in 30~40 ° of angles.
Further, the length of the adjustable plate be (0.2~0.3) B, B be forebay width, the adjustable plate with a thickness of
0.5m, the distance between rotary shaft and bend lateral wall are 0.4 B.
Further, the internal diameter of the sleeve be 0.5m, outer diameter 1m.
Further, the cross section of the limit pier is square, and its side length is 0.5m.
Beneficial effects of the present invention are as follows:
The present invention is designed for all kinds of pumping plant forebays, and intake pool (runner) is located at after forebay, adjusting plate of the invention
Formula column is located at the position of certain distance before intake pool (runner), after water flow flows through forebay, generates before intake pool (runner)
A certain size reflux, after the rectification of adjustable plate-type column, the reflux close to intake pool (runner) is obviously reduced, and returns
Circulation has moved on to adjustable plate-type column rear.Therefore, influence of the reflux generated before intake pool (runner) to water pump operation will
It greatly reduces.Position of the board-like column around rotary shaft rotation adjustable upright column with respect to water flow, adapts to the variation for carrying out flow, reaches most
Good water flow controlling effect.The present invention is suitable for side-direction forbay, can improve intake pool (stream in the case where changes in flow rate
Road) before reflux size and location, make water flow it is more smooth enter runner in, the more stable operation of water pump assembly.
On the basis of a large amount of numerical simulation calculation and model test, analysis ratiocination obtains adjustable plate and direction of flow
The best angle of angle is 80-90 °.The flow of pumping station operation substantial scope usually at 0.6-1.2 times of design discharge, flow compared with
The inertial flow of water flow is big when big, is biased on the outside of bend, and column is pushed to rotate clockwise, and angle increases 10 ° or so, otherwise also
So.It can guarantee that water flow and column angle remain as 80-90 °, at this time to obtain optimal rectification effect.Plate thickness is adjusted to water
Stream influences very little, considers to determine from structural strength.
Adjustable plate-type column control whirlpool scheme of the invention has larger demand, distruting water transregionally, water supply in practical projects
Engineering and drainage and irrigation project etc. have a large amount of pumping plant to build and renovate.The present invention, which is conducive to various pump works, improves forebay water flow
Fluidised form improves the operational efficiency of water pump, and technically reliable is easy to implement, has a extensive future, and economic benefit is obvious.
Detailed description of the invention
Fig. 1 is the elevation of adjustable plate-type column of the present invention；
Fig. 2 is the adjustable format column cross-section side view of the present invention；
Fig. 3 is the adjustable format column top plan view of the present invention；
Fig. 4 is the forebay top plan view with adjustable format column；
Fig. 5 is the three-dimensional perspective of Fig. 4；
Fig. 6 (a) is the reflux schematic diagram of the lateral forebay of not set adjustable format column in background technique；
Fig. 6 (b) is the adjustable format column motion pattern after flow type of forebay of the present invention；
In figure: 1 adjustable plate, 2 sleeves, 3 rotary shafts, 4 limit piers, 5 intake pools, 6 board-like columns, 7 recirculating zones.
Specific embodiment
The present invention is suitable for side-direction forbay, requires design drawing according to the design.
Forebay of Pumping Station adjustable plate-type column, the column are placed in forebay (before intake pool (runner)).Adjusting plate
Formula column includes rotary shaft, adjustable plate, limit pier, and the column section of adjustable plate-type column is circular ring shape (sleeve section) and square
Shape (adjustable plate section), circular ring shape outer diameter are 1m, internal diameter 0.5m, adjustable plate-type column top (adjustable plate) elevation and highest
Water level is equal.Adjustable plate-type column bottom surface bevel edge and direction of flow are in 30-40 ° of angle, and adjustable plate-type column total length is equal
For (0.2~0.3)B,BFor forebay width.Adjustable plate-type column is placed in front of intake pool (runner) (1.5~2)B,BIt is wide for forebay
Degree.
By the adjustable plate-type column regulation reflux being located in Forebay of Pumping Station, improves velocity flow profile, control the de- of water flow
Flow location and range.Adjustable plate can rotate ± 10 ° around rotary shaft, be equipped with limit pier, and limit pier cross section is 0.5 × 0.5m,
The above height 0.5m of bottom of pond is flushed with design water level.Adjustable plate-type column uses precast reinforced concrete structure or metal
Component, rotary shaft use stainless steel tube, there is enough rigidity.
As shown in Figure 6 (a), the incoming flow of lateral intake has the tendency that being biased to the outside of bend under effect of inertia, according to primary
Sharp theorem is exerted, the inside pressure of bend increases, and outside pressure reduces, and forms the low inside and high outside barometric gradient in cross section, causes
The generation of Secondary Flow.Therefore helically formula flows Solution of Flow in Curved Channel, and forms biggish recirculating zone in curve inner side.
It is calculated by largely testing with numerical simulation, the place setting of certain distance is board-like before water feeding of water pump pond
Column can efficiently control the formation of reflux, improve the velocity flow profile of intake pool inlet section, improve the efficiency of water pump system,
As shown in Figure 6 (b).
The outside of bend is arranged in adjustable plate-type column, and adjustable plate plate face face incoming flow increases the pressure of water flow at this
Height, water flow is inwardly, synchronous to improve inside water velocity, reduces inside pressure, interior outside pressure tends to balance.At this moment, cross-section
The Secondary Flow in face greatly weakens, and eliminates the condition that reflux is formed.Instead it is formd in board-like column back region
One recirculating zone just looks like original recirculating zone to be transferred to position new behind board-like column.The reflux pair of this position
Thereafter water flow adjustment is meaningful, relatively uniform in the velocity flow profile of the inlet section water flow of intake pool, is able to satisfy
Requirement of the water pump to flow condition.
Claims (7)
1. a kind of Forebay of Pumping Station adjustable plate-type column, including lateral forebay and intake pool (5), characterized in that the column (6)
It is set to the corner of forebay, which includes adjustable plate (1), rotary shaft (3) and two limit piers (4), the rotary shaft
It is fixedly connected on preceding bottom of pond portion, is equipped with sleeve (2) in the middle part of the adjustable plate, the sleeve of adjustable plate is placed on rotary shaft, and can be opposite
It is rotated in rotary shaft, two limit piers are respectively placed in the two sides of adjustable plate, for controlling to adjust the rotation amplitude of plate.
2. Forebay of Pumping Station adjustable plate-type column according to claim 1, characterized in that the column is located on the outside of bend,
The width of the forebay is B, and column is (1.5~2) at a distance from intake poolB。
3. Forebay of Pumping Station adjustable plate-type column according to claim 1, characterized in that one of limit pier and rotation
Angle between the line of axis and another limit pier and the line of rotary shaft is 20 °.
4. Forebay of Pumping Station adjustable plate-type column according to claim 1, characterized in that the adjustable plate plate face and incoming flow
Direction is in 30~40 ° of angles.
5. Forebay of Pumping Station adjustable plate-type column according to claim 1 or 2, characterized in that the length of the adjustable plate
For (0.2~0.3) B, B is forebay width, the adjustable plate with a thickness of 0.5m, the distance between rotary shaft and bend lateral wall are
0.4 B。
6. Forebay of Pumping Station adjustable plate-type column according to claim 1, characterized in that the internal diameter of the sleeve is
0.5m, outer diameter 1m.
7. Forebay of Pumping Station adjustable plate-type column according to claim 1, characterized in that the cross section of the limit pier is
Square, its side length is 0.5m.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436341.8A CN109235546A (en) | 2018-11-28 | 2018-11-28 | Forebay of Pumping Station adjustable plate-type column |
| GB1911489.1A GB2579431B (en) | 2018-11-28 | 2019-08-12 | Adjustable plate type column for forebay of pumping station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436341.8A CN109235546A (en) | 2018-11-28 | 2018-11-28 | Forebay of Pumping Station adjustable plate-type column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109235546A true CN109235546A (en) | 2019-01-18 |
Family
ID=65073677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811436341.8A Pending CN109235546A (en) | 2018-11-28 | 2018-11-28 | Forebay of Pumping Station adjustable plate-type column |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109235546A (en) |
| GB (1) | GB2579431B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139800A (en) * | 2020-01-17 | 2020-05-12 | 华北水利水电大学 | Adjustable vortex-eliminating rectifying device and vortex-eliminating rectifying method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293518B (en) * | 2022-01-06 | 2023-03-31 | 扬州大学 | Y-shaped sedimentation type flow guide pier suitable for combination of gate station |
| CN114718034B (en) * | 2022-04-19 | 2024-05-28 | 扬州大学 | Discrete lifting guide pier and operation method thereof |
| CN116122237B (en) * | 2023-01-12 | 2023-08-18 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1222748A1 (en) * | 1983-01-10 | 1986-04-07 | Среднеазиатский Ордена Трудового Красного Знамени Научно-Исследовательский Институт Ирригации Им.В.Д.Журина | Apparatus for varying the structure of stream at expansion portion |
| RU2034952C1 (en) * | 1989-12-21 | 1995-05-10 | Шахов Александр Викторович | Water flow energy suppressor for water-carrying constructions |
| CN200999341Y (en) * | 2007-01-12 | 2008-01-02 | 扬州大学 | Side-wise inflow pumping station composite bottom ridge |
| CN201778317U (en) * | 2010-09-06 | 2011-03-30 | 广东省电力设计研究院 | Side inflow pump house diversion device |
| CN204570628U (en) * | 2015-03-18 | 2015-08-19 | 扬州大学 | The fairing that a kind of pumping plant is combined |
| CN206359948U (en) * | 2016-10-27 | 2017-07-28 | 扬州大学 | A kind of deflector experimental provision for simulating lateral intake feature |
| CN107489655A (en) * | 2017-09-29 | 2017-12-19 | 扬州大学 | Pump installation bell-shaped inflow passage with the suitable flowing plate of activity |
| CN207538118U (en) * | 2017-11-29 | 2018-06-26 | 扬州大学 | A kind of column training wall for improving lateral intake pumping plant fluidised form |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203222785U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Y-shaped flow guiding pier used for forebay rectification |
| JP6624980B2 (en) * | 2016-03-16 | 2019-12-25 | 株式会社荏原製作所 | Drainage pumping station and drainage method |
-
2018
- 2018-11-28 CN CN201811436341.8A patent/CN109235546A/en active Pending
-
2019
- 2019-08-12 GB GB1911489.1A patent/GB2579431B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1222748A1 (en) * | 1983-01-10 | 1986-04-07 | Среднеазиатский Ордена Трудового Красного Знамени Научно-Исследовательский Институт Ирригации Им.В.Д.Журина | Apparatus for varying the structure of stream at expansion portion |
| RU2034952C1 (en) * | 1989-12-21 | 1995-05-10 | Шахов Александр Викторович | Water flow energy suppressor for water-carrying constructions |
| CN200999341Y (en) * | 2007-01-12 | 2008-01-02 | 扬州大学 | Side-wise inflow pumping station composite bottom ridge |
| CN201778317U (en) * | 2010-09-06 | 2011-03-30 | 广东省电力设计研究院 | Side inflow pump house diversion device |
| CN204570628U (en) * | 2015-03-18 | 2015-08-19 | 扬州大学 | The fairing that a kind of pumping plant is combined |
| CN206359948U (en) * | 2016-10-27 | 2017-07-28 | 扬州大学 | A kind of deflector experimental provision for simulating lateral intake feature |
| CN107489655A (en) * | 2017-09-29 | 2017-12-19 | 扬州大学 | Pump installation bell-shaped inflow passage with the suitable flowing plate of activity |
| CN207538118U (en) * | 2017-11-29 | 2018-06-26 | 扬州大学 | A kind of column training wall for improving lateral intake pumping plant fluidised form |
Non-Patent Citations (1)
| Title |
|---|
| 何继业: "泵站侧向引河段及前池流场PIV实验研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139800A (en) * | 2020-01-17 | 2020-05-12 | 华北水利水电大学 | Adjustable vortex-eliminating rectifying device and vortex-eliminating rectifying method |
| CN111139800B (en) * | 2020-01-17 | 2024-03-12 | 华北水利水电大学 | Adjustable vortex eliminating and rectifying device and vortex eliminating and rectifying method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201911489D0 (en) | 2019-09-25 |
| GB2579431A (en) | 2020-06-24 |
| GB2579431B (en) | 2020-12-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |