CN201254715Y - Drop sill type underflow energy dissipating work structure - Google Patents
Drop sill type underflow energy dissipating work structure Download PDFInfo
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- CN201254715Y CN201254715Y CNU2008200812517U CN200820081251U CN201254715Y CN 201254715 Y CN201254715 Y CN 201254715Y CN U2008200812517 U CNU2008200812517 U CN U2008200812517U CN 200820081251 U CN200820081251 U CN 200820081251U CN 201254715 Y CN201254715 Y CN 201254715Y
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- sill
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- stilling basin
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- 238000010521 absorption reaction Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model relates to a drop-sill type underflow energy dissipater structure, which provides a falling-sill connected with a certain depth on the rear of an overflow dam face, the rear of the falling-sill is connected with a stilling basin, and the rear of the stilling basin is connected with a tail-sill. After water flow enters into the stilling basin and reaches to a base plate of the stilling basin, the flow velocity is attenuated greatly, and when the main flow enters into the stilling basin, a plurality of air are entrained, so the utility model has a better aeration effect, and increases the energy dissipation ratio effectively, at last the stable flow flows out the tail-sill at a low flow velocity. The utility model has the advantages that the structure is simple, the construction is convenient, and a technical problem of underflow energy dissipation under the condition of high water head and large discharge per unit width can be solved effectively, and the utility model has a great application prospect.
Description
Technical field
The utility model relates to a kind of bank formula disspation through hydraudic jimp worker that falls, and belongs to Hydraulic and Hydro-Power Engineering engineering hydraulics technical field, is a kind of energy-dissipating installation that is used for high water head, big discharge per unit width Hydraulic and Hydro-Power Engineering.
Background technology
Disspation through hydraudic jimp is to utilize at absorption basin to produce a kind of traditional energy dissipating mode that hydraulic jump is carried out energy dissipating, its advantage is that compliance is strong, fluid stable, wash away a little less than slight, the atomizing, therefore, in relatively poor middle low water head hydraulic engineering of geological conditions and power station, still obtained using comparatively widely although disspation through hydraudic jimp worker's cost is higher.Under the high head and large flow condition, adopt the scheme of disspation through hydraudic jimp, when the water levels of upstream and downstream difference was higher than 60m, the absorption basin maximum was faced underflow speed and can be reached more than the 30m/s, because it is higher to face hydraulic indexes such as underflow speed and pulsation pressure, cause the unstable failure of absorption basin base plate plate easily.
Summary of the invention
The purpose of this utility model is at above-mentioned technical problem, and a kind of bank formula disspation through hydraudic jimp worker that falls is provided, and this energy dissipater is not only simple in structure, and can effectively solve the technical problem when adopting disspation through hydraudic jimp under the big discharge per unit width situation of high water head.
For achieving the above object, the utility model adopts following technical scheme: fall bank formula disspation through hydraudic jimp worker, it is the bank that falls that the absorption basin base plate excavates certain depth downwards on conventional disspation through hydraudic jimp worker basis, and flood spillway is entered absorption basin go out to design certain attached firing angle, promptly be connected with the bank that falls of certain depth at the overfull dam surface rear portion, fall the bank rear portion and connect absorption basin, the absorption basin rear portion connects the tail bank.
The utility model is owing to adopt said structure, keep more water body during energy dissipating in the absorption basin, after current enter absorption basin,, form strong whirlpool at the main flow upper and lower and roll vertically doing the jet motion of longer distance, flow velocity obtains very big decay after arriving the absorption basin base plate, and when main flow enters absorption basin, entrainment a large amount of air, have aeration effect preferably, effectively improved energy dissipation rate, flowed out the tail bank with steady current at last than minimum velocity.Therefore the utlity model has simple in structurely, the advantage of easy construction has great application prospect.
Description of drawings
Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing, but structure of the present utility model is not limited to shown in the accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Among Fig. 1,1 is overfull dam surface; 2 is overfall dam; 3 for falling bank; 4 is absorption basin; 5 is the tail bank.
What the utility model fell that bank formula disspation through hydraudic jimp worker structure directly is connected with certain depth at overfull dam surface 1 rear portion falls bank 3, falls bank 3 rear portions and connects absorption basin 4, and absorption basin 4 rear portions connect tail bank 5.When current enter absorption basin 4 by overfull dam surface 1, owing to fall the existence of bank 3, make the water body that has certain depth in the absorption basin 4, after current enter absorption basin 4, vertically doing the jet motion of longer distance, form strong whirlpool at the main flow upper and lower and roll, flow velocity obtained very big decay after main flow arrived the absorption basin base plate, and when main flow enters absorption basin 4, entrainment a large amount of air, have aeration effect preferably, effectively improved energy dissipation rate, flow out tail bank 5 with steady current at last than minimum velocity.
Claims (1)
1, a kind of bank formula disspation through hydraudic jimp worker structure of falling is characterized in that: what overfull dam surface (1) rear portion was connected with certain depth falls bank (3), falls bank (3) rear portion and connects absorption basin (4), and absorption basin (4) rear portion connects tail bank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200812517U CN201254715Y (en) | 2008-05-26 | 2008-05-26 | Drop sill type underflow energy dissipating work structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200812517U CN201254715Y (en) | 2008-05-26 | 2008-05-26 | Drop sill type underflow energy dissipating work structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254715Y true CN201254715Y (en) | 2009-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200812517U Expired - Fee Related CN201254715Y (en) | 2008-05-26 | 2008-05-26 | Drop sill type underflow energy dissipating work structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254715Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286963A (en) * | 2011-07-01 | 2011-12-21 | 大连理工大学 | New shape overflow dam and bottom flow energy dissipation method |
| CN102852122A (en) * | 2012-10-15 | 2013-01-02 | 戴会超 | Eco-friendly subsidiary dam capable of improving gas supersaturation |
| CN105133555A (en) * | 2015-09-28 | 2015-12-09 | 安徽理工大学 | Step type and spiral reverse rotation bottom sill type combined energy dissipation facility and energy dissipation method |
| CN106948319A (en) * | 2017-05-08 | 2017-07-14 | 中国水利水电科学研究院 | A kind of fluted non-horizontal base plate of band falls energy dissipater and the method for bank stiling basin |
| CN107190712A (en) * | 2017-06-30 | 2017-09-22 | 中国水利水电科学研究院 | A kind of toe bank falls bank stiling basin formula underflow energy dissipator and design method |
| CN107190711A (en) * | 2017-04-28 | 2017-09-22 | 昆明理工大学 | A kind of combined energy dissipater of suitable high moisture head and small flow flood-discharge energy-dissipating |
| CN107459142A (en) * | 2017-10-12 | 2017-12-12 | 长沙理工大学 | A kind of ecological ground sills system and construction method for urban landscape rivers |
| CN108797531A (en) * | 2018-05-03 | 2018-11-13 | 四川大学 | A kind of induced joint flood-discharge energy-dissipating facility that both sides bottom plate is gradually raised |
-
2008
- 2008-05-26 CN CNU2008200812517U patent/CN201254715Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286963A (en) * | 2011-07-01 | 2011-12-21 | 大连理工大学 | New shape overflow dam and bottom flow energy dissipation method |
| CN102852122A (en) * | 2012-10-15 | 2013-01-02 | 戴会超 | Eco-friendly subsidiary dam capable of improving gas supersaturation |
| CN102852122B (en) * | 2012-10-15 | 2013-09-04 | 戴会超 | Eco-friendly subsidiary dam capable of improving gas supersaturation |
| CN105133555A (en) * | 2015-09-28 | 2015-12-09 | 安徽理工大学 | Step type and spiral reverse rotation bottom sill type combined energy dissipation facility and energy dissipation method |
| CN107190711A (en) * | 2017-04-28 | 2017-09-22 | 昆明理工大学 | A kind of combined energy dissipater of suitable high moisture head and small flow flood-discharge energy-dissipating |
| CN107190711B (en) * | 2017-04-28 | 2019-04-12 | 昆明理工大学 | A kind of combined energy dissipater of suitable high moisture head and small flow flood-discharge energy-dissipating |
| CN106948319A (en) * | 2017-05-08 | 2017-07-14 | 中国水利水电科学研究院 | A kind of fluted non-horizontal base plate of band falls energy dissipater and the method for bank stiling basin |
| CN106948319B (en) * | 2017-05-08 | 2018-05-04 | 中国水利水电科学研究院 | A kind of fluted non-horizontal bottom plate of band falls energy dissipater and the method for bank stiling basin |
| CN107190712A (en) * | 2017-06-30 | 2017-09-22 | 中国水利水电科学研究院 | A kind of toe bank falls bank stiling basin formula underflow energy dissipator and design method |
| CN107190712B (en) * | 2017-06-30 | 2018-05-25 | 中国水利水电科学研究院 | A kind of toe bank falls bank stiling basin formula underflow energy dissipator and design method |
| CN107459142A (en) * | 2017-10-12 | 2017-12-12 | 长沙理工大学 | A kind of ecological ground sills system and construction method for urban landscape rivers |
| CN108797531A (en) * | 2018-05-03 | 2018-11-13 | 四川大学 | A kind of induced joint flood-discharge energy-dissipating facility that both sides bottom plate is gradually raised |
| CN108797531B (en) * | 2018-05-03 | 2020-05-12 | 四川大学 | High arch dam flood discharge energy dissipation facility with gradually-raised bottom plates on two sides |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20120526 |