CN2915940Y - Curved aerated chute - Google Patents
Curved aerated chute Download PDFInfo
- Publication number
- CN2915940Y CN2915940Y CN 200620119725 CN200620119725U CN2915940Y CN 2915940 Y CN2915940 Y CN 2915940Y CN 200620119725 CN200620119725 CN 200620119725 CN 200620119725 U CN200620119725 U CN 200620119725U CN 2915940 Y CN2915940 Y CN 2915940Y
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- CN
- China
- Prior art keywords
- aerated
- bank
- chute
- downstream
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relating to a curved aerated chute which belongs to the field of water conservancy project is provided. The curved aerated chute is composed of an upper aerated chute, a cavity and a lower aerated chute, wherein: the surface of the lower aerated chute is an arch diameter is 30 to 60 meters. The utility model has the advantages of that as follows: the steady aerated cavity is formed after the supper aerated chute is formed at the condition the depth of water is deep and the velocity of flow is slow, and the Froude number is between 3.0 to 4.0, and thus meeting the demands for reducing corrosion.
Description
(1) technical field
The utility model relates to a kind of aerator, and particularly the downstream bank is the aerator of shaped form.Belong to the hydraulic engineering field.
(2) background technology
In the flood discharging tunnel of high dam, because the negative pressure that the flow at high speed of current produces can cause cavitation phenomenon, cavitation can cause the cavitation corrosion of flood discharging tunnel hole wall.Serious cavitation corrosion can cause flood discharging tunnel to cave in.In order to prevent the safety of cavitation corrosion phenomenon harm flood discharging tunnel, use aerator that the high-velocity flow in the flood discharging tunnel is carried out aeration in the tradition, avoid the generation of negative pressure.The utility model has its unique design at the current aeration.
(3) summary of the invention
[problem that will solve]
The purpose of this utility model is to design a kind of low flow velocity, the big depth of water, and low Froude number is issued to the aerator of aeration requirement.
[technical scheme]
In order to reach the purpose of this utility model, adopted following technical scheme:
Shaped form aerator of the present utility model is characterized in that: bank 1 is chosen in the upstream, and cavity 2 is connected successively with downstream bank 3, and wherein, the surface of downstream bank 3 is an arc;
The arc on bank 3 surfaces, shaped form aerator of the present utility model downstream is that diameter is the circular arc of 30-60 rice;
The arc diameter preferred value on bank 3 surfaces, shaped form aerator of the present utility model downstream is 45 meters;
Cavity 2 length of shaped form aerator of the present utility model are 4-8 rice;
The cavity 2 length preferred values of shaped form aerator of the present utility model are 6 meters.
The gradient of downstream bank 3 downstream faces of shaped form aerator of the present utility model is 1: 5.
The downstream bank 3 both sides height of shaped form aerator of the present utility model is 0.3m-0.7m, preferred 0.5m, and middle height is 0.6m-1.0m, preferred 0.8m keeps middle than both sides height.
[beneficial effect]
Specifically, advantage of the present utility model is as follows:
Bigger in the depth of water, flow rate of water flow is less, in the time of between the Froude number 3.0～4.0, can produce stable aeration cavity after choosing bank, satisfies the air mixing corrosion reducing demand.
(4) description of drawings
Fig. 1 is a kind of vertical view of the utility model product;
Fig. 2 is the sectional side view of the utility model product;
Fig. 3 is the sectional view of the utility model product downstream bank 3.
(5) specific embodiment
The following specific embodiment is used to illustrate the utility model, but is not used for limiting scope of the present utility model.
Following mask body is in conjunction with the utility model is further described.
Embodiment 1
As Figure 1-3, the utility model is chosen bank 1, cavity 2 and downstream bank 3 by the upstream and is formed.Downstream bank 3 is the low cambers in middle high both sides.Cavity 2 length are 6.0m, and bank 3 cross sections in downstream are the circular arc of R=45.0m, and height is 0.8m in the middle of the downstream bank 3, and the both sides height is 0.5m, and the gradient of downstream bank 3 downstream faces is 1: 5.
Embodiment 2
As Figure 1-3, other parts are identical with embodiment 1, and difference is: cavity 2 length are 8.0m, and bank 3 cross sections in downstream are the circular arc of R=60.0m, and height is 0.6m in the middle of the downstream bank 3 of shaped form aerator, and the both sides height is 0.5m.。
Embodiment 3
As Figure 1-3, the utility model is chosen bank 1, cavity 2 and downstream bank 3 by the upstream and is formed.Downstream bank 3 is the low cambers in middle high both sides.Cavity 2 length are 8.0m, and bank 3 cross sections in downstream are the circular arc of R=30.0m, and height is 1.0m in the middle of the downstream bank 3, and the both sides height is 0.7m, and the gradient of downstream bank 3 downstream faces is 1: 5.
Embodiment 4
As Figure 1-3, other parts are identical with embodiment 1, and difference is: cavity 2 length are 4.0m, and bank 3 cross sections in downstream are the circular arc of R=45.0m, and height is 1.0m in the middle of the downstream bank 3 of shaped form aerator, and the both sides height is 0.7m.
Claims (7)
1. shaped form aerator, it is characterized in that: bank (1) is chosen in the upstream, and cavity (2) is connected successively with downstream bank (3), and wherein, the surface of downstream bank (3) is an arc.
2. shaped form aerator as claimed in claim 1 is characterized in that: the radian on the surface of described downstream bank (3) is that diameter is the circular arc of 30-60 rice.
3. shaped form aerator as claimed in claim 2 is characterized in that: the radian on the surface of described downstream bank (3) is that diameter is 45 meters a circular arc.
4. shaped form aerator as claimed in claim 1 is characterized in that: described cavity (2) length is 4-8 rice.
5. shaped form aerator as claimed in claim 4 is characterized in that: described cavity (2) length is 6 meters.
6. as any described shaped form aerator among the claim 1-3, it is characterized in that: the gradient of described downstream bank (3) downstream face is 1: 5.
7. as any described shaped form aerator among the claim 1-3, it is characterized in that: the high 0.3m-0.7m of being in described downstream bank (3) both sides, middle height is 0.6m-1.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119725 CN2915940Y (en) | 2006-06-12 | 2006-06-12 | Curved aerated chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119725 CN2915940Y (en) | 2006-06-12 | 2006-06-12 | Curved aerated chute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2915940Y true CN2915940Y (en) | 2007-06-27 |
Family
ID=38186847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620119725 Expired - Fee Related CN2915940Y (en) | 2006-06-12 | 2006-06-12 | Curved aerated chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2915940Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864754A (en) * | 2010-06-11 | 2010-10-20 | 四川大学 | Inclined flip bucket for spillway or flood discharge hole outlet |
| CN101736718B (en) * | 2009-12-17 | 2012-02-01 | 四川大学 | Reversely bevelled flip bucket |
| CN102966082A (en) * | 2012-12-11 | 2013-03-13 | 中国水电顾问集团西北勘测设计研究院 | Aeration facility with downward-bent base slab |
| CN103498452A (en) * | 2013-10-17 | 2014-01-08 | 中国水电顾问集团北京勘测设计研究院有限公司 | Narrow seam flip bucket structure of high-gradient narrow river valley release structure |
| CN105256771A (en) * | 2015-10-23 | 2016-01-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Small base slope flow channel aerating method and two-dimensional dovetail ridge structure |
| CN105735209A (en) * | 2016-03-25 | 2016-07-06 | 四川大学 | Differential type swallowtail-shaped flip bucket |
| CN107905185A (en) * | 2017-09-26 | 2018-04-13 | 昆明理工大学 | A kind of combined energy dissipater with airfoil type aerator |
-
2006
- 2006-06-12 CN CN 200620119725 patent/CN2915940Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736718B (en) * | 2009-12-17 | 2012-02-01 | 四川大学 | Reversely bevelled flip bucket |
| CN101864754A (en) * | 2010-06-11 | 2010-10-20 | 四川大学 | Inclined flip bucket for spillway or flood discharge hole outlet |
| CN101864754B (en) * | 2010-06-11 | 2012-07-04 | 四川大学 | Inclined flip bucket for spillway or flood discharge hole outlet |
| CN102966082A (en) * | 2012-12-11 | 2013-03-13 | 中国水电顾问集团西北勘测设计研究院 | Aeration facility with downward-bent base slab |
| CN103498452A (en) * | 2013-10-17 | 2014-01-08 | 中国水电顾问集团北京勘测设计研究院有限公司 | Narrow seam flip bucket structure of high-gradient narrow river valley release structure |
| CN105256771A (en) * | 2015-10-23 | 2016-01-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Small base slope flow channel aerating method and two-dimensional dovetail ridge structure |
| CN105256771B (en) * | 2015-10-23 | 2018-06-29 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of Small Bottom Slope runner aeration method and two-dimentional dovetail bank structure |
| CN105735209A (en) * | 2016-03-25 | 2016-07-06 | 四川大学 | Differential type swallowtail-shaped flip bucket |
| CN107905185A (en) * | 2017-09-26 | 2018-04-13 | 昆明理工大学 | A kind of combined energy dissipater with airfoil type aerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |