CN205776112U - Wing-shaped hole plug energy dissipater - Google Patents
Wing-shaped hole plug energy dissipater Download PDFInfo
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- CN205776112U CN205776112U CN201620667263.2U CN201620667263U CN205776112U CN 205776112 U CN205776112 U CN 205776112U CN 201620667263 U CN201620667263 U CN 201620667263U CN 205776112 U CN205776112 U CN 205776112U
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- hole
- aerofoil profile
- diffusion part
- wing section
- internal diameter
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- 238000009792 diffusion process Methods 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model provides a wing section hole stopper energy dissipater, relates to hydraulic and hydroelectric engineering, specifically is an effectively eliminate rivers energy, avoids producing wing section hole stopper energy dissipater that cavitation erosion destroyed. The utility model discloses the setting is in the flood discharge hole, and this wing section hole of its characterized in that stopper energy dissipater includes flood discharge hole stopper and wing section diffusion part, and the setting is filled in the flood discharge hole to the flood discharge hole stopper, and wing section diffusion part sets up and fills in a mouthful department in the flood discharge hole, and the inside hollow of wing section diffusion part is the round platform form, and the internal diameter of wing section diffusion part entrance is greater than the flood discharge hole internal diameter, forms a pressure release space between the horizontal plane of upper and lower both sides and rivers in the wing section diffusion part entrance respectively. The utility model discloses a wing section hole stopper energy dissipater, simple structure, the design science, convenient to use, for current shrink hole stopper or step hole stopper, wing section hole stopper has improved the anti cavitation erosion cavitation destruction ability of two kinds of preceding hole stoppers to a great extent except, has still increased the energy dissipation efficiency of this structure by a wide margin, has very big using value.
Description
Technical field
This utility model relates to Hydraulic and Hydro-Power Engineering, and specially one effectively eliminates flow energy, it is to avoid produce cavitation empty
The aerofoil profile dissipater of hole stopper that erosion destroys.
Background technology
In Hydraulic and Hydro-Power Engineering, there is pressure flood discharging tunnel as a kind of effective means of flood discharge, carry the most important effect,
Owing in hole, flow velocity is the biggest, engineering is often adopted in various manners at it along Cheng Jinhang energy dissipating.Pressurized tunnel is along journey energy dissipating
Central idea be exactly that utilized stream border drastically restraints the water that the acute variation of current streamline that narrow or diffusion causes causes
Head loss carries out energy dissipating.
At present, conventional energy dissipater is orifice dissipater and dissipater of hole stopper two kinds, and orifice dissipater is successfully applied to
In the middle of hydraulic engineering, its energy dissipating occurs mainly in the strong turbulent fluctuation shear zone after orifice plate sudden expansion, big yet with orifice plate sharp-edged flow velocity,
Current separate, and in turn result in this position and cavitation phenomenon easily occurs.
And dissipater of hole stopper, it is for the straight Dong Sai import department low weakness being susceptible to cavitation of pressure, to its anti-cavitation
Performance is improved, but, although the anti-cavitation performance that straight hole is filled in by this hole plug is optimized, but for energy
Eliminate further and the most significantly act on.It addition, many test prove, hole plug entrance location due to the reason of build sudden contraction,
This cross-sectional flow is increased dramatically and pressure significantly reduces, so that hole plug entrance location easily occurs cavitation corrosion cavitation, hole plug to receive
Contracting section reduces due to footpath, hole, and this cross-sectional flow is increased dramatically, so that pressure declines to a great extent, this will cause this section cavitation
Number reduces, thus increases cavitation corrosion cavitation risk.
Summary of the invention
To be solved in the utility model is exactly in existing Hydraulic and Hydro-Power Engineering, and pressure release Hongdong dissipater of hole stopper may produce
The problem of cavitation destruction, it is provided that one effectively eliminates flow energy, it is to avoid the aerofoil profile hole plug producing cavitation destruction disappears
Can work.
Aerofoil profile dissipater of hole stopper of the present utility model, is arranged in flood discharging tunnel, it is characterised in that this aerofoil profile dissipater of hole stopper
Including flood discharging tunnel plug and aerofoil profile diffusion part, flood discharging tunnel plug is arranged in flood discharging tunnel, and aerofoil profile diffusion part is arranged on flood discharging tunnel and fills in mouth
Place, aerofoil profile diffusion part boring, its hollow position is round table-like, and the internal diameter of aerofoil profile diffusion part porch is more than flood discharging tunnel internal diameter,
A pressure release space is formed respectively between upper and lower both sides, aerofoil profile diffusion part porch and the horizontal plane of current.
The meet water angle α of inclined-plane and current plane of described aerofoil profile diffusion part is acute angle.
The internal diameter in described aerofoil profile diffusion part exit is equal to flood discharging tunnel plug porch internal diameter.
Being the contraction type hole plug tilted at described flood discharging tunnel plug boring, porch internal diameter is more than exit internal diameter.
Being stair-stepping step hole plug at described flood discharging tunnel plug boring, porch internal diameter is more than exit internal diameter.
Described pressure release hole internal diameter isD 0, flood discharging tunnel plug lengthL 2=(0.35 ~ 2.0)D 0, the internal diameter in exitD 1
Internal diameter with import departmentD 2RatioD 1 /D 2=0.7 ~ 1,D 1=(0.25 ~ 0.75)D 0；Aerofoil profile diffusion part lengthL 1 =
(0.4 ~ 0.8)L 2, diameterD 3=(1.2 ~ 2.0)D 0 。
This utility model sets up a sudden expansion structure in the stem position of conventional dissipater of hole stopper, makes the water of hole plug bundle narrow portion
Flowing and flow along diffusion head, due to the constraint effect on border, water body produces strong rotary roll in the pressure release space within diffuser
Thus realize being greatly improved of energy dissipation.Sudden expansion structure is conducive to increasing the local pressure having pressure hole, and then increases this position
Cavitation number, and finally realize the purpose of the anti-cavitation corrosion cavitation ability at this that improves.
Along with cavitation number is decreased to certain numerical value size, first cavitation cloud fills in mouth at the corner of Dong Sai import department, i.e. hole
The whirlpool district in pressure release space, place produces, and along with the reduction of cavitation number, cavitation cloud constantly radially develops in Dong Sai import department, until
Covering whole hole and fill in mouth, along with the further reduction of cavitation number, cavitation cloud swims development gradually downward until covering whole hole plug
Section, the tube wall of hole plug inducer is the place first suffering cavitation erosion, and this deposits mainly due to hole plug inlet part salient angle
So that plug anterior water body streamline in hole occurs drastically change caused, so improving the anti-cavitation corrosion cavitation energy at this in this position
It is critical only that of power reduces active cross-section shrinkage degree, and therefore the pressure release space segment upstream face at aerofoil profile diffusion part arranges one
With current plane to the angle α for acute angle.
Aerofoil profile dissipater of hole stopper of the present utility model, simple in construction, design science, easy to use, relative to existing receipts
Contracting hole is filled in or step hole plug, and aerofoil profile hole plug removes Shangdi largely and improves the anti-cavitation corrosion cavitation destruction of above two kinds of hole plugs
Beyond ability, also it is added significantly to the energy dissipating efficiency of this structure, there is great using value.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment 1 structural representation.
Fig. 2 is this utility model embodiment 2 structural representation.
Fig. 3 is this utility model fluidised form schematic diagram.
Wherein, flood discharging tunnel 1, aerofoil profile diffusion part 2, flood discharging tunnel plug 3, pressure release space 4.
Detailed description of the invention
Embodiment 1: a kind of aerofoil profile dissipater of hole stopper, is arranged in flood discharging tunnel 1, flood discharging tunnel 1 internal diameterD 0=3.0m, this aerofoil profile
Dissipater of hole stopper includes flood discharging tunnel plug 3 and aerofoil profile diffusion part 2, and flood discharging tunnel plug 3 is arranged in flood discharging tunnel, and aerofoil profile diffusion part 2 is arranged
In flood discharging tunnel plug 3 porch, aerofoil profile diffusion part 2 boring, its hollow position is round table-like, aerofoil profile diffusion part 2 porch interior
Footpath is more than flood discharging tunnel 1 internal diameter, forms one respectively and let out between upper and lower both sides, aerofoil profile diffusion part 2 porch and the horizontal plane of current
Pressure space 4.Wherein, flood discharging tunnel plug 3 lengthL 2 =1.5D 0=4.5m, the internal diameter of outletD 1 =0.5D 0=1.5m, entrance interior
FootpathD 2 =D 1/0.75=2.0m；Aerofoil profile diffusion part 2 lengthL 1 =0.6L 2=2.7m, hole plug aerofoil profile diffusion head diameterD 3 =
1.5D 0=4.5m.The meet water angle α of inclined-plane and current plane of aerofoil profile diffusion part 2 is 60 °.The internal diameter in aerofoil profile diffusion part 2 exit
Equal to flood discharging tunnel plug 3 porch internal diameter.Being the contraction type hole plug tilted at flood discharging tunnel plug 3 boring, porch internal diameter is more than
Exit internal diameter.
Embodiment 2: a kind of aerofoil profile dissipater of hole stopper, is arranged in flood discharging tunnel 1, flood discharging tunnel 1 internal diameterD 0=3.0m, this aerofoil profile
Dissipater of hole stopper includes flood discharging tunnel plug 3 and aerofoil profile diffusion part 2, and flood discharging tunnel plug 3 is arranged in flood discharging tunnel 1, and aerofoil profile diffusion part 2 is arranged
In flood discharging tunnel plug 3 porch, aerofoil profile diffusion part 2 boring, its hollow position is round table-like, aerofoil profile diffusion part 2 porch interior
Footpath is more than flood discharging tunnel 1 internal diameter, forms one respectively and let out between upper and lower both sides, aerofoil profile diffusion part 2 porch and the horizontal plane of current
Pressure space 4.Wherein, flood discharging tunnel plug 3 lengthL 2 =2D 0=6m, the internal diameter of outletD 1 =0.4D 0=1.2m, the internal diameter of entranceD 2 =D 1/0.5=2.4m；Aerofoil profile diffusion part 2 lengthL 1 =0.8L 2=4.8m, hole plug aerofoil profile diffusion head diameterD 3 =2D 0
=6m.The meet water angle α of inclined-plane and current plane of aerofoil profile diffusion part 2 is 60 °.The internal diameter in aerofoil profile diffusion part 2 exit is equal to flood discharge
3 porch internal diameters are filled in hole.Being stair-stepping step hole plug at flood discharging tunnel plug 3 boring, porch internal diameter is more than in exit
Footpath.
Claims (5)
1. an aerofoil profile dissipater of hole stopper, is arranged in flood discharging tunnel (1), it is characterised in that this aerofoil profile dissipater of hole stopper includes flood discharge
Hole plug (3) and aerofoil profile diffusion part (2), flood discharging tunnel plug (3) is arranged in flood discharging tunnel (1), and aerofoil profile diffusion part (2) is arranged on flood discharging tunnel
Plug (3) porch, aerofoil profile diffusion part (2) boring, its hollow position is round table-like, the internal diameter of aerofoil profile diffusion part (2) porch
More than flood discharging tunnel (1) internal diameter, between upper and lower both sides, aerofoil profile diffusion part (2) porch and the horizontal plane of current, form one respectively
Pressure release space (4).
2. aerofoil profile dissipater of hole stopper as claimed in claim 1, it is characterised in that described aerofoil profile diffusion part (2) meet water inclined-plane with
The angle α of current plane is acute angle.
3. aerofoil profile dissipater of hole stopper as claimed in claim 1, it is characterised in that described aerofoil profile diffusion part (2) exit interior
Footpath is equal to flood discharging tunnel plug (3) porch internal diameter.
4. aerofoil profile dissipater of hole stopper as claimed in claim 1, it is characterised in that at described flood discharging tunnel plug (3) boring be
The contraction type hole plug tilted, porch internal diameter is more than exit internal diameter.
5. aerofoil profile dissipater of hole stopper as claimed in claim 1, it is characterised in that at described flood discharging tunnel plug (3) boring be
Stair-stepping step hole is filled in, and porch internal diameter is more than exit internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667263.2U CN205776112U (en) | 2016-06-30 | 2016-06-30 | Wing-shaped hole plug energy dissipater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667263.2U CN205776112U (en) | 2016-06-30 | 2016-06-30 | Wing-shaped hole plug energy dissipater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205776112U true CN205776112U (en) | 2016-12-07 |
Family
ID=58128907
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620667263.2U Active CN205776112U (en) | 2016-06-30 | 2016-06-30 | Wing-shaped hole plug energy dissipater |
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| CN (1) | CN205776112U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442342A (en) * | 2018-05-21 | 2018-08-24 | 河南罡源电子科技有限公司 | A kind of construction method in hydraulic engineering energy dissipating hole |
| CN109247217A (en) * | 2018-10-22 | 2019-01-22 | 新疆泓科节水设备制造有限公司 | Slight irrigation Zhi Guanyong pressure adapter |
| CN109826298A (en) * | 2019-02-18 | 2019-05-31 | 枣庄学院 | A kind of mud-rock flow aerofoil profile drainage groove structure |
| CN114960571A (en) * | 2022-06-13 | 2022-08-30 | 中国电建集团中南勘测设计研究院有限公司 | Pressure water delivery pipeline bend sudden-expansion structure of pumped storage power station |
-
2016
- 2016-06-30 CN CN201620667263.2U patent/CN205776112U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442342A (en) * | 2018-05-21 | 2018-08-24 | 河南罡源电子科技有限公司 | A kind of construction method in hydraulic engineering energy dissipating hole |
| CN109247217A (en) * | 2018-10-22 | 2019-01-22 | 新疆泓科节水设备制造有限公司 | Slight irrigation Zhi Guanyong pressure adapter |
| CN109826298A (en) * | 2019-02-18 | 2019-05-31 | 枣庄学院 | A kind of mud-rock flow aerofoil profile drainage groove structure |
| CN114960571A (en) * | 2022-06-13 | 2022-08-30 | 中国电建集团中南勘测设计研究院有限公司 | Pressure water delivery pipeline bend sudden-expansion structure of pumped storage power station |
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| GR01 | Patent grant |