CN207904886U - A kind of hollow baffle pier - Google Patents
A kind of hollow baffle pier Download PDFInfo
- Publication number
- CN207904886U CN207904886U CN201721551599.3U CN201721551599U CN207904886U CN 207904886 U CN207904886 U CN 207904886U CN 201721551599 U CN201721551599 U CN 201721551599U CN 207904886 U CN207904886 U CN 207904886U
- Authority
- CN
- China
- Prior art keywords
- gradual change
- conservancy diversion
- water conservancy
- duct
- baffle pier
- 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.)
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Abstract
A kind of hollow baffle pier of the utility model, and then the novel baffle pier of hydraulic structure is protected, it is made of baffle pier entity A, the first gradual change water conservancy diversion duct, gradual change water conservancy diversion duct, gradual change water conservancy diversion duct, three ducts are gradually wide formula duct.In addition, three water conservancy diversion ducts make three flows be compiled at one in outflow, in addition, due to not far from pier body at P, so the change of big water (flow) direction can't occur behind water outlet aperture road, it is possible to which realization forms three-dimensional head-on collision.The hollow three-dimensional gradual change opposite jet flow formula baffle pier that the utility model uses carries out water conservancy diversion head-on collision energy dissipating, while gradual change duct is but also water flow speed reduction, further improves energy dissipating efficiency using itself duct without carrying out the combination of baffle pier to flow.
Description
Technical field
The utility model belongs to baffle pier engineering device technique field, concretely relates to a kind of using gradual change flow three-dimensional pair
Rush the hollow baffle pier of formula.
Background technology
Since founding of New, with the rapid hair of the promotion and China's water resources and hydropower construction cause of dam body engineering technology
Exhibition, the water-control project that head is high, flow is big is being continuously increased, and these hydraulic engineerings must all have flood-discharge energy-dissipating to set
It applies；In addition, there is the region turned in some streamflows, high-velocity flow washes away bunding, it is also desirable to subtract to flow
Speed and then protection bunding.Flip trajectory bucket is a kind of most common Energy Dissipation Modes of high water head discharge structure, and wherein impact type chooses stream
Energy dissipating is then the impact force using flow and block of wood, and flow is forced to rebound to be formed and choose stream, it various chooses stream mode cloth than existing
It sets more flexible, in addition, baffle pier acts on the counterattack of flow, flow is divided into many small water stocks, so that flow is transferred, and after pier
The rotary roll etc. hit mutually and generated causes strong turbulent fluctuation so that flow rate of water flow slows down.
Baffle pier common at present has following several：
The first solid baffle pier, such baffle pier act on the counterattack of flow, flow are divided into many small water stocks, makes water
Circulation folding, and hit mutually after pier.In addition flow causes strong with rotary roll etc. caused by baffle pier mantle friction and flow
Strong turbulent fluctuation.Such baffle pier makes flow carry out head-on collision energy dissipating using the combination of baffle pier, it is desirable that has the group of multiple rows of multiple row
It closes and carries out energy dissipating.It has higher requirements to the quantity and position arrangement of energy dissipation pier, meanwhile, energy dissipating efficiency is also undesirable.
Second of baffle pier is the hollow baffle pier of diplopore, and there are two deflector holes for the baffle pier, and upper water is introduced baffle pier
Afterwards, conjugation flow is formed at baffle pier rear, two bursts of flows are impacted, and are solved baffle pier and are needed to combine progress water conservancy diversion in turn
The problem of slowing down to water.But the diversion mode of this kind of baffle pier is two bit plane water conservancy diversion energy dissipatings, does not reach energy dissipating
High efficiency state.
Invention content
The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of new hollow three-dimensional gradual change flow
Opposite-flushing type baffle pier.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：
A kind of hollow baffle pier, for reducing the impact force of water, including baffle pier ontology and be opened on baffle pier the
One gradual change water conservancy diversion duct, the second gradual change water conservancy diversion duct, third gradual change water conservancy diversion duct, water flow through the first gradual change water conservancy diversion duct, second
A point P is converged at after gradual change water conservancy diversion duct and the outflow of third gradual change water conservancy diversion duct.
Be further improved, the first gradual change water conservancy diversion duct, the second gradual change water conservancy diversion duct, third gradual change water conservancy diversion duct hole
Road size is gradual change type, and inlet opening face area is less than water outlet open area.
It is further improved, the first gradual change water conservancy diversion duct, the second gradual change water conservancy diversion duct and third gradual change water conservancy diversion duct hole
Road junction has carried out glazing processing.
The hollow baffle pier adds the water conservancy diversion duct of three gradual changes, three deflector holes by traditional solid baffle pier before
Road is gradually wide, and certain decelerating effect is played to respective flow.In addition, three water conservancy diversion ducts make three flows in outflow
It is compiled at one, in addition, due to not far from pier body at P, so changing for big water (flow) direction can't occur behind water outlet aperture road
Become, it is possible to which realization forms three-dimensional head-on collision.
Compared with prior art, the utility model has the beneficial effects that：
Using hollow three-dimensional head-on collision flow, it need not both offset power pier and be combined to reach to flow progress water conservancy diversion pair
The power that disappears is hit, while improving the energy dissipating efficiency of water conservancy diversion in pier again, in addition, also being carried out to flow using gradually wide hole in pausing
Certain decelerating effect.
Description of the drawings
Fig. 1 is a kind of hollow three-dimensional gradual change opposite jet flow formula baffle pier schematic diagram of the utility model.
Fig. 2 is the water intake end elevation of the baffle pier.
Fig. 3 is the water outlet elevation of the baffle pier.
Fig. 4 is the flow side schematic view of the baffle pier.
Fig. 5 is the flow top schematic diagram of the baffle pier.
Specific implementation mode
The utility model is described in further detail with specific implementation mode below in conjunction with the accompanying drawings：
Shown in Fig. 1-5, a kind of hollow three-dimensional gradual change opposite jet flow formula baffle pier, by baffle pier ontology A, the first gradual change water conservancy diversion
Duct 1, the second gradual change water conservancy diversion duct 2, third gradual change water conservancy diversion duct 3 form, and three ducts are gradually wide formula duct, are flowed by flow
Flow out it is equal it is found that three ducts outflow end end face cross-sectional area be more than flow into when, outflow flow rate of water flow be less than flow into flow stream
Speed.In addition, three flows are compiled in after outflow at P, three-dimensional head-on collision is formed, slows down flow rate of water flow significantly.
In addition, since baffle pier working environment is extremely severe, parital vacuum and cavitation erosion are easily formed so that baffle pier is broken rapidly
It is bad, so directly opening makes flow pass through on baffle pier, the safety of pier body self structure can be influenced, so needing to aperture
Place carries out intensive treatment, and can also protect pier body to a certain extent to carrying out glazing processing at aperture.
Undeclared part involved in the utility model is same as the prior art or is realized using the prior art.
Claims (3)
1. a kind of hollow baffle pier, for reducing the impact force of water, which is characterized in that including baffle pier ontology and be opened in the power that disappears
The first gradual change water conservancy diversion duct, the second gradual change water conservancy diversion duct, third gradual change water conservancy diversion duct on pier, water flow through the first gradual change deflector hole
A point P is converged at after road, the second gradual change water conservancy diversion duct and the outflow of third gradual change water conservancy diversion duct.
2. hollow baffle pier according to claim 1, which is characterized in that the first gradual change water conservancy diversion duct, the second gradual change
Water conservancy diversion duct, third gradual change water conservancy diversion duct pore size be gradual change type, inlet opening face area is less than water outlet open area.
3. hollow baffle pier according to claim 1 or 2, which is characterized in that the first gradual change water conservancy diversion duct, second are gradually
The opening of the channel for becoming water conservancy diversion duct and third gradual change water conservancy diversion duct has carried out glazing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551599.3U CN207904886U (en) | 2017-11-20 | 2017-11-20 | A kind of hollow baffle pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551599.3U CN207904886U (en) | 2017-11-20 | 2017-11-20 | A kind of hollow baffle pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207904886U true CN207904886U (en) | 2018-09-25 |
Family
ID=63570974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721551599.3U Expired - Fee Related CN207904886U (en) | 2017-11-20 | 2017-11-20 | A kind of hollow baffle pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207904886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323998A (en) * | 2022-08-30 | 2022-11-11 | 扬州大学 | Oblique angle guide pipe turning force dissipating pier and asymmetric outflow coupling energy dissipation method |
-
2017
- 2017-11-20 CN CN201721551599.3U patent/CN207904886U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323998A (en) * | 2022-08-30 | 2022-11-11 | 扬州大学 | Oblique angle guide pipe turning force dissipating pier and asymmetric outflow coupling energy dissipation method |
| CN115323998B (en) * | 2022-08-30 | 2024-01-23 | 扬州大学 | Oblique angle conduit diversion dissipating pier and asymmetric outflow coupling energy dissipation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20191120 |