CN109577292A - A kind of energy dissipating flow passage structure reducing flow velocity - Google Patents
A kind of energy dissipating flow passage structure reducing flow velocity Download PDFInfo
- Publication number
- CN109577292A CN109577292A CN201811592428.4A CN201811592428A CN109577292A CN 109577292 A CN109577292 A CN 109577292A CN 201811592428 A CN201811592428 A CN 201811592428A CN 109577292 A CN109577292 A CN 109577292A
- Authority
- CN
- China
- Prior art keywords
- pipes
- analysis
- section
- energy dissipating
- runner hole
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 210000000003 hoof Anatomy 0.000 claims description 2
- 230000001815 facial effect Effects 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- 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
-
- 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)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a kind of energy dissipating flow passage structure for reducing flow velocity, including runner hole, it is provided with pipes' analysis on runner hole, pipes' analysis one end is provided with flow channel entry point, and the pipes' analysis other end is provided with runner exit, is provided with hump weir on pipes' analysis.Using technical solution of the present invention, by the way that multiple hump weirs are arranged on pipes' analysis, these hump weirs have different shapes, height and size, and the arrangement interlaced with each other on pipes' analysis, after allowing fluid flow, keep preferable fluidised form, reduce fluid flow state disorder phenomenon, improve hydraulics, cause flow section sudden contraction sudden expansion further through hump weir simultaneously, increase flow energy loss, reach reduction flow velocity, adjust streamline, the purpose of fluidised form, reduce the probability that fluid generates cavitation erosion in runner hole, the present invention has structure simple, construction is convenient, the advantages such as project cost is low, suitable for the various water discharging structures for needing to carry out energy dissipating processing.
Description
Technical field
Present invention relates particularly to runner flood discharge and energy dissipation technology field in hydraulic and hydroelectric engineering more particularly to a kind of reduction flow velocitys
Energy dissipating flow passage structure.
Background technique
It also should ensure that in addition to it should meet flood carrying capacity in the runtime as runner set in hydraulic and hydroelectric engineering
Between flood releasing structure safety, be well connected with former streamflow and due effect of energy dissipation can be given full play to, to avoid under
The stream that sluices causes erosion damage to underwater bed and bank slope.Existing spillway energy dissipating design is generally using energy dissipating side other than outlet
Formula, the design of spillway barrel energy-dissipating structure gradually develops in recent years, occurs Step Energy Dissipation in succession, and energy dissipating, hollowed-out board are filled in hole
Energy dissipating, the various patterns such as ventilation bank energy dissipating, but be all the part eliminated using the suddenly change of flow-passing surface in fluid
Energy reduces exit velocity.The all generally existing disadvantage of current existing various barrel energy dissipation types, water flow disappear by barrel
Energy working hour fluidised form disorder, flow condition are poor, which is easy to happen cavitation and cavitation erosion problem.Therefore, it is necessary to one kind to disappear
The barrel energy-dissipating structure of cavitation and cavitation erosion problem can be can be reduced again, to reduce exit velocity, eliminate part flow energy.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of energy dissipating flow passage structures for reducing flow velocity.
The present invention is achieved by following technical solution.
The present invention provides a kind of energy dissipating flow passage structure for reducing flow velocity, including runner hole, it is arranged on the runner hole
There is the pipes' analysis allowed fluid flow, one end of the pipes' analysis is provided with flow channel entry point, and the other end of the pipes' analysis is provided with
Runner exit is provided at least one hump weir on the pipes' analysis.
The runner hole cross-sectional outling is non-close or closed, and the pipes' analysis is formed by the runner hole inner wall.
Projection of the pipes' analysis in the runner hole transversal cross-section is open channel section, city-gate section, circle, horse
It is one of ungulate.
The multiple hump weir is interrupted along the pipes' analysis length direction by appropriate spacing or continuous arrangement, wherein arbitrarily
Projection of two hump weirs on the runner hole cross section is interlaced with each other.
Projection of the hump weir appearance profile on the runner hole cross section includes the arc section A for being located at left side, position
Arc section B in the top and arc section C positioned at right side.
Central angle corresponding to the arc section A, arc section C is 0 °~180 °.The corresponding central angle of the arc section C is
It is 0 °~180 °.
Projection of the hump weir appearance profile on the runner hole vertical section further include be connected to the arc section A with
Between arc section B or the straight line linkage section that is connected between the arc section C and arc section B.
The hump weir height is less than 2/3rds of the pipes' analysis height.
The beneficial effects of the present invention are: technical solution of the present invention is used, by the way that multiple humps are arranged on pipes' analysis
Weir, these hump weirs have different shapes, height and size, and the arrangement interlaced with each other on pipes' analysis, allow fluid flow
Later, preferable fluidised form is kept, fluid flow state disorder phenomenon is reduced, improves hydraulics, while causing further through hump weir
Flow section sudden contraction sudden expansion increases flow energy loss, achievees the purpose that reduce flow velocity, adjustment streamline, fluidised form, reduces fluid and exist
The probability of cavitation erosion is generated in runner hole, the present invention has the advantages such as structure is simple, construction is convenient, and project cost is low,
Suitable for the various water discharging structures for needing to carry out energy dissipating processing.
Detailed description of the invention
Fig. 1 is longitudinal section structure diagram of first embodiment of the invention；
Fig. 2 is longitudinal section structure diagram of second embodiment of the invention；
Fig. 3 is top view of the invention；
Fig. 4 is runner hole cross-sectional configuration schematic diagram of the present invention；
Fig. 5 is hump weir cross-sectional configuration schematic diagram of the present invention.
In figure: 1- runner hole, 2- hump weir, 11- pipes' analysis, 12- flow channel entry point, 13- runner exit, 21- arc section A,
22- arc section C, 23- arc section B.
Specific embodiment
Technical solution of the present invention is further described with reference to the accompanying drawing, but claimed range is not limited to institute
It states.
A kind of energy dissipating flow passage structure of reduction flow velocity of the invention, as shown in Figure 1, Figure 2, Figure 3, Figure 4, including runner hole 1,
The pipes' analysis 11 allowed fluid flow is provided on runner hole 1, one end of pipes' analysis 11 is provided with flow channel entry point 12, pipes' analysis 11
The other end be provided with runner exit 13, at least one hump weir 2 is provided on pipes' analysis 11.
Using technical solution of the present invention, by the way that multiple hump weirs are arranged on pipes' analysis, these hump weirs have difference
Shape, height and size, and the arrangement interlaced with each other on pipes' analysis after allowing fluid flow, keeps preferable fluidised form, subtracts
Few fluid flow state disorder phenomenon improves hydraulics, while causing flow section sudden contraction sudden expansion further through hump weir, increases water flow
Energy loss achievees the purpose that reduce flow velocity, adjustment streamline, fluidised form, reduces fluid and generate cavitation erosion in runner hole
Probability, the present invention have the advantages such as structure is simple, construction is convenient, and project cost is low, need to carry out energy dissipating suitable for various
In the water discharging structure of processing.
Further, 1 cross-sectional outling of runner hole is non-close or closed, and pipes' analysis 11 is formed by 1 inner wall of runner hole.
Projection of the pipes' analysis 11 in 1 transversal cross-section of runner hole is one of open channel section, city-gate section, circle, the shape of a hoof.
Using technical solution of the present invention, it can be applied to the energy-dissipating structure in the spillway structure of various structure types, be widely used.
In addition, multiple hump weirs 2 are interrupted along 11 length direction of pipes' analysis by appropriate spacing or continuous arrangement, wherein arbitrarily
Projection of two hump weirs 2 on 1 cross section of runner hole is interlaced with each other.It is preferred that the spacing between two hump weirs 2 of arbitrary neighborhood
It is all different.The overall volume size of any two hump weir 2 is all different.Using technical solution of the present invention, due to hump
2 size of weir, volume are different, and as fluid flows therethrough, the pipes' analysis that fluid flows through then generates fluctuated, wide suddenly narrow change suddenly
Change, so that the portion of energy in fluid is promoted to consume, and simultaneously as 2 interlaced arrangement of hump weir, makes fluid flow state will not mistake
In disorder, and better orientation consistency is still maintained, improved hydraulics, reduced and cavitation and cavitation erosion phenomenon occurs
Probability.
Further, as shown in figure 5, projection of 2 appearance profile of hump weir on 1 cross section of runner hole includes being located at left side
Arc section A21, the arc section B23 positioned at top and the arc section C22 positioned at right side.Arc section A21, arc section C22 institute are right
The central angle answered is 0 °
~180 °.The corresponding central angle of arc section C22 is 0 °~180 °.2 appearance profile of hump weir is vertical disconnected in runner hole 1
Projection on face further include be connected between arc section A21 and arc section B23 or be connected to arc section C22 and arc section B23 it
Between straight line linkage section 24.2 height of hump weir is less than 2/3rds of 11 height of pipes' analysis.Specifically, 2 position of hump weir
Any position on pipes' analysis can be located at, the spacing between two hump weirs 2 of arbitrary neighborhood can be equal also not identical.
The technical solution of the application is practiced by Kweiyang Co., Ltd, survey and design research institute, Chinese electric construction group investment,
In an implementation, support is closed by the subsidy of Huaneng Group science and technology item HNKJ15-H12, science and technology supporting project science and technology item Guizhou Province section, Guizhou Province
[2019] subsidy of 201970966703X20907 achieves above-mentioned beneficial technical effect, while social benefit after implementation
Well.
Claims (8)
1. a kind of energy dissipating flow passage structure for reducing flow velocity, it is characterised in that: including runner hole (1), runner hole (1) inner wall is made
One end for the pipes' analysis (11) allowed fluid flow, the pipes' analysis (11) is provided with flow channel entry point (12), the pipes' analysis
(11) the other end is provided with runner exit (13), at least one hump weir (2) is provided on the pipes' analysis (11).
2. the energy dissipating flow passage structure according to claim 1 for reducing flow velocity, it is characterised in that: the runner hole (1) is cross-section
Facial contour is non-close or closed.
3. the energy dissipating flow passage structure according to claim 1 for reducing flow velocity, it is characterised in that: the runner hole (1) is laterally
Section is one of open channel section, city-gate section, circle, the shape of a hoof.
4. the energy dissipating flow passage structure according to claim 1 for reducing flow velocity, it is characterised in that: the multiple hump weir (2)
It is interrupted along the pipes' analysis (11) length direction by appropriate spacing or continuously arranges, any two of them hump weir (2) is in institute
The projection stated on runner hole (1) cross section is interlaced with each other.
5. the energy dissipating flow passage structure according to claim 1 for reducing flow velocity, it is characterised in that: hump weir (2) shape
Projection of the profile on the runner hole (1) cross section includes positioned at the arc section A (21) in left side, positioned at the arc section B at top
(23) and the arc section C (22) positioned at right side.
6. the energy dissipating flow passage structure according to claim 5 for reducing flow velocity, it is characterised in that: the arc section A (21), circle
Central angle corresponding to segmental arc C (22) is 0 °~180 °.The corresponding central angle of the arc section C (22) is 0 °~180 °.
7. the energy dissipating flow passage structure according to claim 5 for reducing flow velocity, it is characterised in that: hump weir (2) shape
Profile further includes being connected between the arc section A (21) and arc section B (23) in the projection on the runner hole (1) vertical section
Or it is connected to the straight line linkage section (24) between the arc section C (22) and arc section B (23).
8. the energy dissipating flow passage structure according to claim 1 for reducing flow velocity, it is characterised in that: hump weir (2) height
Less than 2/3rds of the runner hole (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592428.4A CN109577292B (en) | 2018-12-25 | 2018-12-25 | Energy dissipation runner structure for reducing flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592428.4A CN109577292B (en) | 2018-12-25 | 2018-12-25 | Energy dissipation runner structure for reducing flow velocity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109577292A true CN109577292A (en) | 2019-04-05 |
| CN109577292B CN109577292B (en) | 2024-03-19 |
Family
ID=65932624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592428.4A Active CN109577292B (en) | 2018-12-25 | 2018-12-25 | Energy dissipation runner structure for reducing flow velocity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577292B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343016A (en) * | 2020-11-10 | 2021-02-09 | 中铁第四勘察设计院集团有限公司 | Combined energy dissipation structure of flood discharge tunnel |
| CN113174973A (en) * | 2021-04-27 | 2021-07-27 | 长沙理工大学 | Soft rock slope ecological protection structure and construction method thereof |
| CN113931144A (en) * | 2021-11-30 | 2022-01-14 | 中国水利水电建设工程咨询西北有限公司 | Energy dissipation scour protection structure of diversion tunnel export |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437332A (en) * | 2013-09-05 | 2013-12-11 | 中国水电顾问集团中南勘测设计研究院 | Protruding body and discharge chute for mounting protruding body |
| DE102014008895A1 (en) * | 2014-11-03 | 2016-05-04 | Ottfried Arnold | Hydrodynamic weir to prevent erosion in rivers and maintain navigability at low tide |
| CN205314071U (en) * | 2015-12-09 | 2016-06-15 | 西华大学 | Multistage fan -shaped abrupt slope dissipation structure |
| CN108797530A (en) * | 2017-05-04 | 2018-11-13 | 国电大渡河沙坪水电建设有限公司 | A kind of multichannel bank stilling pond of dispersible energy dissipating |
| CN209603094U (en) * | 2018-12-25 | 2019-11-08 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of low velocity fluid energy dissipating flow passage configuration |
-
2018
- 2018-12-25 CN CN201811592428.4A patent/CN109577292B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437332A (en) * | 2013-09-05 | 2013-12-11 | 中国水电顾问集团中南勘测设计研究院 | Protruding body and discharge chute for mounting protruding body |
| DE102014008895A1 (en) * | 2014-11-03 | 2016-05-04 | Ottfried Arnold | Hydrodynamic weir to prevent erosion in rivers and maintain navigability at low tide |
| CN205314071U (en) * | 2015-12-09 | 2016-06-15 | 西华大学 | Multistage fan -shaped abrupt slope dissipation structure |
| CN108797530A (en) * | 2017-05-04 | 2018-11-13 | 国电大渡河沙坪水电建设有限公司 | A kind of multichannel bank stilling pond of dispersible energy dissipating |
| CN209603094U (en) * | 2018-12-25 | 2019-11-08 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of low velocity fluid energy dissipating flow passage configuration |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343016A (en) * | 2020-11-10 | 2021-02-09 | 中铁第四勘察设计院集团有限公司 | Combined energy dissipation structure of flood discharge tunnel |
| CN113174973A (en) * | 2021-04-27 | 2021-07-27 | 长沙理工大学 | Soft rock slope ecological protection structure and construction method thereof |
| CN113931144A (en) * | 2021-11-30 | 2022-01-14 | 中国水利水电建设工程咨询西北有限公司 | Energy dissipation scour protection structure of diversion tunnel export |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109577292B (en) | 2024-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109577292A (en) | A kind of energy dissipating flow passage structure reducing flow velocity | |
| CN104404926B (en) | Dam facing chooses the overfall dam of bank shunting energy dissipating | |
| CN101349047B (en) | Aeration type curve ladder energy dissipater in flood discharge hole | |
| CN204753513U (en) | Dam with from energy dissipation function | |
| CN105155484A (en) | Method for reconstructing temporary diversion tunnel into permanent flood discharge facility | |
| CN104775404A (en) | Steady flow friction reduction absorption basin | |
| CN209603094U (en) | A kind of low velocity fluid energy dissipating flow passage configuration | |
| CN204589947U (en) | A kind of current stabilization anti-attrition absorption basin | |
| CN100554592C (en) | Diffusion type curve trajectory bucket | |
| CN204418136U (en) | There is pressure sudden enlargement and sudden Circular Jet energy dissipater | |
| CN104404928B (en) | Jet energy dissipating method is fallen in a kind of gravity dam table hole flood discharge | |
| CN102797242B (en) | Arrangement structure of overflow surface holes of arch dam | |
| CN207314299U (en) | A kind of arrangement of the narrow steep full tunnel-spillway in river valley bank | |
| CN107663851A (en) | A kind of anti-cavitation curved Stepped Spillway of destruction | |
| CN206157703U (en) | Multistage orifice plate dissipation structure of lock water supply pipe | |
| CN205742107U (en) | A kind of fish mouth type for Forebay of Pumping Station combines current equalizer | |
| CN105220662A (en) | A kind of " dovetail bank+subsides slope " aeration method and structure | |
| CN103821112A (en) | Lateral on-way outflow shore spillway | |
| CN206625199U (en) | A kind of water-break tunnel import | |
| CN109252494B (en) | A kind of deformation type stilling pond front end energy-dissipating structure and its energy dissipating method | |
| CN203821344U (en) | Forward water inlet and sand sluicing flush gallery structure of hydropower station | |
| CN206408597U (en) | The tail pier and gate pier component of spillway | |
| CN206667199U (en) | A kind of structure for adjusting release floodwatering flow distribution | |
| CN202718074U (en) | Arranging structure of arch dam spillover surface outlet | |
| CN205100177U (en) | " forked tail bank + slope " air entrainment structure |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |