CN208309534U - Submerged rotating pier vertical shaft vortex spillway tunnel - Google Patents
Submerged rotating pier vertical shaft vortex spillway tunnel Download PDFInfo
- Publication number
- CN208309534U CN208309534U CN201820751664.5U CN201820751664U CN208309534U CN 208309534 U CN208309534 U CN 208309534U CN 201820751664 U CN201820751664 U CN 201820751664U CN 208309534 U CN208309534 U CN 208309534U
- Authority
- CN
- China
- Prior art keywords
- vertical shaft
- adit
- rotating pier
- water
- trap
- 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
Links
Abstract
The utility model relates to hydraulic and hydroelectric engineering fields, aiming at the problem that the big discharge drilled shaft flood discharge hole of high water head is also easy to produce cavitation corrosion, provide a kind of submerged rotating pier vertical shaft vortex spillway tunnel, the technical solution is as follows: including vertical shaft, adit and the cave of debouchure, vertical shaft one end is equipped with water inlet, the junction of vertical shaft and adit is equipped with the trap of U-shaped pipeline setting, and water inlet is equipped with the ring dam that slot end is connect with vertical shaft, and water inlet is equipped with the rotating pier connecting with the small angle of ring dam.Use the rotating pier connecting with the small angle of ring dam; it can play the role of effectively playing rotation to the water flow for flowing through rotating pier; there is ponding in the trap of silo bottom setting; water flow is when entering trap; water flow when ponding in trap can be to flood discharge plays the role of buffering; it reduces water flow and directly washes away the impact force generated to flood discharging tunnel side wall, achieve the purpose that energy dissipating, to play the protective effect to flood discharging tunnel.
Description
Technical field
The utility model relates to hydraulic and hydroelectric engineering fields, more specifically, it relates to which a kind of submerged rotating pier vertical shaft revolves
Flow energy dissipating flood discharging tunnel.
Background technique
In hydraulic and hydroelectric engineering, reservoir water retaining structure be earth and rockfill dam when, frequently with spillway or flood discharging tunnel mode
Flood discharge, but when dam site two sides landform is steeper, do not have when doing spillway condition, often selection uses flood discharging tunnel mode, and often knot
Close construction diversion hole arrangement.
Conventional horn shape weir drilled shaft flood discharge hole is built more in twentieth century four, the fifties U.S..This flood discharging tunnel is logical
Chang Bushe gate, normal pool level, that is, elevation of weir crest, automatic flood discharge, therefore, suitable for unattended very flood discharging tunnel, especially
It is most advantageous using this flood discharging tunnel in meagrely-populated Hydraulic Projects.When having the open terrain for building tubaeform weir, it
Maximum discharge capacity is up to 3000m3/s。
There are many disadvantages for traditional tubaeform weir drilled shaft flood discharge hole: if water inlet is also easy to produce whirlpool, discharge capacity is influenced,
Works is caused to vibrate with there is unstable vortex rope, it sometimes appear that reversed gas explosion phenomenon (such as dam Ore. A Weixi
Drilled shaft flood discharge hole).In overflow weir with negative pressure is also easy to produce at vertical shaft linkage section, gas can be reached especially proximate to the negative pressure of vertical shaft lower part
Change pressure, causes vertical shaft cavitation corrosion.The application of the big discharge drilled shaft flood discharge hole of high water head is set to receive the very day of one's doom due to the above reasons,
System.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of submerged rotating pier vertical shaft eddy flows
Energy dissipating flood discharging tunnel has the advantages that the water flow energy dissipating to entering in flood discharging tunnel.
To achieve the above object, the utility model provides following technical solution:
A kind of submerged rotating pier vertical shaft vortex spillway tunnel, including the vertical shaft, adit and the cave of debouchure being sequentially connected, institute
It states vertical shaft and is equipped with water inlet far from one end of adit, the junction of the vertical shaft and adit is equipped with trap, and the trap is in U
The setting of type pipeline, it is in horn-like ring dam that the water inlet, which is equipped with, and the slot end of the ring dam is connect with vertical shaft, described
Water inlet is equipped with several circumferentially uniformly distributed rotating piers along water inlet, the excircle of the wide mouth end of the rotating pier and ring dam
Tangent line at angle no more than 15 ° connection.
It by adopting the above technical scheme, can be to the water for flowing through rotating pier using the rotating pier being connect with the small angle of ring dam
Stream plays the role of effectively playing rotation, so that water flow effectively rotates, while the rotating pier of small angle will not shadow under high water level operating condition
Flood discharge flow is rung, and bottom water flow can effectively pull upper layer water flow rotary, equally can produce and effectively play rotation, water
It is rotated after flowing into vertical shaft, negative pressure can be eliminated under the influence of centrifugal force, to effectively place cavitation corrosion, while vertical shaft
There is ponding in the trap of bottom setting, water flow of the water flow when entering trap, when the ponding in trap can be to flood discharge
Play the role of buffering, reduces water flow and directly wash away the impact force generated to flood discharging tunnel side wall, achieve the purpose that energy dissipating, to play
Protective effect to flood discharging tunnel.
Preferably, the bottom of the adit is equipped with several water-supply-pipes, and several water-supply-pipes are communicated with same drainpipe, institute
Drainpipe is stated equipped with valve.
By adopting the above technical scheme, the ponding of adit bottom can be discharged from by adit by water-supply-pipe and drainpipe, thus
The water accumulating volume in adit is reduced, while the valve on drainpipe can need to open and close according to flood discharge, drain in adit to reach
Ponding plays the role of shunting during flood discharge.
Preferably, the adit in the shape of a spiral and is obliquely installed.
By adopting the above technical scheme, adit helical form setting can play the role of buffering to the water flow entered in adit.
Preferably, the adit includes the straight way linearly extended, and the adit further includes several being connected to straight way
Upper pit and lower pit, the adit is wave-shaped and is obliquely installed.
By adopting the above technical scheme, water flow enters after adit when draining by straight way, by the fovea superior being connected to straight way
Hole and lower pit, so that when adit of the water flow Jing Guo setting wave-shaped buffering can be played the role of to water flow.
Preferably, the water-supply-pipe is connected to the bottom of lower pit.
By adopting the above technical scheme, water-supply-pipe can drain the ponding in lower pit, to reduce the ponding in adit.
Preferably, the drainpipe is obliquely installed.
By adopting the above technical scheme, drainpipe, which is obliquely installed, preferably to drain the water in drainpipe.
Preferably, the inner sidewall of the vertical shaft is equipped with the ring ladder extended towards the axis of vertical shaft, the vertical shaft
Direction of the bore from water inlet towards trap is gradually reduced.
By adopting the above technical scheme, buffering can be played the role of to the water flow entered in vertical shaft by ring ladder, and
And the bore of vertical shaft gradually decreases so that ring ladder to the buffering effect of water flow more preferably.
Preferably, the top of the rotating pier is higher than the top surface of ring dam and is lower than the peak level of reservoir.
By adopting the above technical scheme, the top of rotating pier is higher than the top surface of ring dam, flows into the water flow in vertical shaft
It can be rotated under the guiding role of rotating pier, when water level is excessively high, water level is higher than rotating pier, and water flow can be from the top of rotating pier at this time
Portion enters in vertical shaft, to guarantee the flood carrying capacity of flood discharging tunnel.
In conclusion the utility model has the following beneficial effects:
1. having ponding in the trap being arranged by silo bottom, product of the water flow when entering trap, in trap
Water flow when water can be to flood discharge plays the role of buffering, reduces water flow and directly washes away the impact force generated to flood discharging tunnel side wall, reaches
To the purpose of energy dissipating；
2. water flow is when entering adit, the waveform channel that can be formed in conjunction with lower pit by straight way, upper pit, so that
In shorter distance, the depth of water increases, and corresponding flow velocity reduces, then water flow forms hydraulic jump to have the function that energy dissipating；
3. buffering can be played the role of to the water flow entered in vertical shaft by ring ladder, and the bore of vertical shaft is gradually
Reduce so that ring ladder to the buffering effect of water flow more preferably.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one in the utility model；
Fig. 2 is the top view of the vertical shaft of embodiment one in the utility model；
Fig. 3 is the structural schematic diagram of embodiment two in the utility model.
In figure: 1, vertical shaft；11, water inlet；12, ring dam；13, ring ladder；2, adit；21, straight way；22, upper pit；
23, lower pit；3, the cave of debouchure；4, trap；5, rotating pier；6, drainpipe；61, water-supply-pipe；62, valve.
Specific embodiment
With reference to the accompanying drawings and embodiments, the utility model is described in detail.
Embodiment one
A kind of submerged rotating pier vertical shaft vortex spillway tunnel, referring to Fig. 1, including be sequentially communicated vertical shaft 1, adit 2 with
And the cave of debouchure 3, vertical shaft 1 is equipped with water inlet 11 far from one end of adit 2, while being located at water inlet 11 in vertical shaft 1 and being equipped in loudspeaker
The ring dam 12 of shape setting, the slot end of ring dam 12 is connected with vertical shaft 1.
Trap 4 is equipped between vertical shaft 1 and adit 2, the setting of the U-shaped pipeline of trap 4, vertical shaft 1 and level line connect respectively
The both ends of trap 4 are connect, moment ponding in trap 4.
The channel in adit 2 in the present embodiment in the shape of a spiral and is obliquely installed.
In addition, being equipped with several water-supply-pipes 61 in the bottom of adit 2, water-supply-pipe 61 and the bottom of the helical duct of adit 2 connect
Logical, water-supply-pipe 61 extends vertically downwards, and all water-supply-pipes 61 are communicated on same root drainpipe 6, the draining
Pipe 6 also extends obliquely downward setting.
Referring to Fig. 1 and Fig. 2, the inner sidewall of vertical shaft 1 is equipped with the ring ladder 13 extended towards the axis of vertical shaft 1, and
The bore of vertical shaft 1 is gradually reduced from water inlet 11 towards the direction of trap 4.
The excircle of the wide mouth end of ring dam 12 is equipped with the circumferential direction of the excircle of several wide mouth ends along ring dam 12
Uniformly distributed rotating pier 5 is equipped with eight rotating piers 5 in the present embodiment, and the horizontal cross-section of rotating pier 5 is elongated polygon, plays rotation
Pier 5 is connect at angle no more than 15 ° with the tangent line of the excircle of the wide opening section of ring dam 12, rotating pier 5 and ring in the present embodiment
The angle of the tangent line of the excircle of the wide opening section on shape weir 12 is 8 °.
The side of rotating pier 5 and the excircle of the wide mouth end of ring dam 12 are fixed, and the separate and ring dam of rotating pier 5 is fixed
Side be set as fillet, the top surface that the top of rotating pier 5 is higher than ring dam 12 is lower than the peak level of reservoir simultaneously.
Specific work process: when flood discharge, by rotating pier 5 to rotate when entering vertical shaft 1, water flow rotary produces water flow
Raw centrifugal force has the function of energy dissipating, can effectively prevent 1 cavitation corrosion of vertical shaft to eliminate negative pressure.
Rotating pier 5 is connect with the tangent line of the excircle of the wide mouth end of ring dam 12 at low-angle, can make water flow in vertical shaft 1
Generate stable rotating flow movement, when the angle of rotating pier 5 and the tangent line of the excircle of the wide opening section of ring dam 12 is 8 °, water
The rotation dynamics of stream is larger, easily eliminates 1 negative pressure of vertical shaft.
The top surface that the top of rotating pier 5 is higher than ring dam 12 simultaneously is lower than the peak level of reservoir simultaneously so that water level compared with
When low, water flow can be by the spacing between adjacent rotating pier 5 to be rotated into vertical shaft 1, and when water level is higher, water level is higher than
Rotating pier 5, water flow can be entered directly in vertical shaft 1 from the top of rotating pier 5, to guarantee the flood carrying capacity of flood discharging tunnel.
Water flow can be played with the flow velocity to water flow and be slowed down under the guide functions of ring ladder 13 after entering vertical shaft 1
Effect, to reduce impact of the water flow to 1 inner wall of vertical shaft, reduces 1 cavitation corrosion of vertical shaft to achieve the purpose that energy dissipating.
Water flow first passes through the trap 4 between vertical shaft 1 and adit 2, due in trap 4 when entering adit 2 and draining
There is ponding at moment, then water flow can be avoided water flow straight when entering trap 4 by the buffer function of ponding in trap 4
It connects and washes away 2 bottom wall of adit, it, can since trap 4 is set as U-shaped pipe to reduce current scour damage caused by flood discharging tunnel
Ensure that there is ponding at the moment in trap 4.
After water flow enters adit 2, since adit 2 is arranged in the shape of a spiral, then make water flow rotary, by centrifugal force to disappear
Except the negative pressure in adit 2, the case where reducing 1 cavitation corrosion of vertical shaft.
After water flow flows through adit 2, the bottom that part ponding remains in 2 helical duct of adit is had, therefore opening can be passed through
Valve 62, water flow are flow in drainpipe 6 by water-supply-pipe 61, and are drained under the effect of the oriented of drainpipe 6, flat to reduce
Ponding in hole 2；And during flood discharge, if water flow is excessive, valve 62 is opened, flood discharge is carried out to be formed to shunt, improves
Flood carrying capacity.
Embodiment two
It is that the setting of adit 2 is different from the difference of embodiment one, a kind of submerged rotating pier vertical shaft eddy flow energy dissipating flood discharge
Hole, referring to Fig. 3, adit 2 includes the straight way 21 for linearly tilting extension, and several and straight way is additionally provided in adit 2
The upper pit 22 and lower pit 23 of 21 connections, the center of the center line of straight way 21, the center line of upper pit 22 and lower pit 23
Line is located in same vertical plane, and upper pit 22 is located at the two sides of straight way 21 with lower pit 23, so that 2 internal channel of adit is in wave
It wave-like and is obliquely installed.In addition, water-supply-pipe 61 is connected to the bottom of lower pit 23.
Specific work process: it is that the setting of adit 2 is different from the difference of embodiment one, water flow enter adit 2 when,
Can be by upper pit 22 and lower pit 23, so that the depth of water increases in shorter distance, corresponding flow velocity reduces, then water flow shape
At hydraulic jump to have the function that energy dissipating.
After water flow is by adit 2, there are part ponding in lower pit 23 for meeting, at this time can be by being connected to lower pit 23
Water-supply-pipe 61 to drain, to reduce the ponding in adit 2.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of submerged rotating pier vertical shaft vortex spillway tunnel, including the vertical shaft (1), adit (2) and water outlet being sequentially connected
Hole (3), the vertical shaft (1) is equipped with water inlet (11) far from the one end of adit (2), it is characterized in that: the vertical shaft (1) and adit
(2) junction is equipped with trap (4), the U-shaped pipeline setting of trap (4), and being equipped at the water inlet (11) is in loudspeaker
The slot end of the ring dam (12) of shape, the ring dam (12) is connect with vertical shaft (1), is equipped at the water inlet (11) several
Along the circumferentially uniformly distributed rotating pier (5) of water inlet (11), the excircle of the wide mouth end of the rotating pier (5) and ring dam (12)
Tangent line is at no more than 15 ° connections of angle.
2. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 1, it is characterized in that: the adit (2)
Bottom is equipped with several water-supply-pipes (61), and several water-supply-pipes (61) are communicated with same drainpipe (6), on the drainpipe (6)
Equipped with valve (62).
3. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 2, it is characterized in that: the adit (2) is in
It helical form and is obliquely installed.
4. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 2, it is characterized in that: the adit (2) wraps
Include the straight way (21) linearly extended, the adit (2) further include several upper pits (22) being connected to straight way (21) and
Lower pit (23), the adit (2) is wave-shaped and is obliquely installed.
5. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 4, it is characterized in that: the water-supply-pipe (61)
It is connected to the bottom of lower pit (23).
6. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 2, it is characterized in that: the drainpipe (6)
It is obliquely installed.
7. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 1, it is characterized in that: the vertical shaft (1)
Inner sidewall is equipped with the ring ladder (13) extended towards the axis of vertical shaft (1), and the bore of the vertical shaft (1) is from water inlet (11)
It is gradually reduced towards the direction of trap (4).
8. submerged rotating pier vertical shaft vortex spillway tunnel according to claim 1, it is characterized in that: the rotating pier (5)
Top be higher than ring dam (12) top surface and be lower than reservoir peak level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820751664.5U CN208309534U (en) | 2018-05-17 | 2018-05-17 | Submerged rotating pier vertical shaft vortex spillway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820751664.5U CN208309534U (en) | 2018-05-17 | 2018-05-17 | Submerged rotating pier vertical shaft vortex spillway tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208309534U true CN208309534U (en) | 2019-01-01 |
Family
ID=64712804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820751664.5U Expired - Fee Related CN208309534U (en) | 2018-05-17 | 2018-05-17 | Submerged rotating pier vertical shaft vortex spillway tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208309534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609644A (en) * | 2020-12-22 | 2021-04-06 | 浙江华铖建设有限公司 | Flood discharge method and device for corrosion prevention and energy dissipation of rotational flow annular weir |
-
2018
- 2018-05-17 CN CN201820751664.5U patent/CN208309534U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609644A (en) * | 2020-12-22 | 2021-04-06 | 浙江华铖建设有限公司 | Flood discharge method and device for corrosion prevention and energy dissipation of rotational flow annular weir |
| CN112609644B (en) * | 2020-12-22 | 2022-03-11 | 浙江华铖建设有限公司 | Flood discharge method and device for corrosion prevention and energy dissipation of rotational flow annular weir |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106930249B (en) | A kind of taper volute chamber rotational flow silo flood discharging tunnel system | |
| CN101148867A (en) | Flood discharging method and flood discharging tunnel employing rotational flow and strong moisture mixing energy dissipation | |
| CN112281770B (en) | Flood discharge structure adopting bottom hole and surface hole combined flood discharge and energy dissipation | |
| CN208309534U (en) | Submerged rotating pier vertical shaft vortex spillway tunnel | |
| CN107044112A (en) | Energy dissipation by aeration and gas explosion-proof flood discharge device and its flood discharging method | |
| CN207392122U (en) | It is a kind of that there is the key water control project of desilting | |
| CN107740389A (en) | A kind of diversion tunnel structure and its plugging construction method | |
| CN107034978B (en) | Classification drop type rotational flow silo suitable for deep layer tunnel system | |
| JP2017002528A (en) | Sedimentary sand collection device in dam, river, and intake channel | |
| CN205296100U (en) | Husky equipment is arranged in reservoir segmentation | |
| KR101992780B1 (en) | Small hydropower generating apparatus installed in drain pipe | |
| CN101881020B (en) | Method and device for dissipating energy by automatically adjusting flow through shaft of submerged rotating pier | |
| CN110593221A (en) | Fold-line type flip bucket at outlet of bank spillway/flood discharge tunnel | |
| CN211256912U (en) | Fold-line type flip bucket at outlet of bank spillway/flood discharge tunnel | |
| CN203977377U (en) | Sediment trapping training for sediment structure | |
| CN206800344U (en) | Energy dissipation by aeration and gas explosion-proof flood discharge device | |
| CN207453072U (en) | Eddy flow rain water separator | |
| CN207092027U (en) | A kind of automatic horizontal gate for being suitable to regulation spillway discharge capacity | |
| CN106498936A (en) | A kind of cast-in-situ bored pile mud desanding system | |
| CN206721984U (en) | A kind of water-fetching head for preventing siphon pipe from evacuating | |
| CN106759163B (en) | Stilling pool tail sill structure adopting bottom hole for sand discharge | |
| CN207619918U (en) | A kind of automatic sand discharging device | |
| CN206359980U (en) | A kind of cast-in-situ bored pile mud desanding system | |
| CN204212901U (en) | A kind of water turbine with sand discharge structure | |
| JP2020159285A (en) | Suction cover, horizontal shaft pump, pump gate and operation method for pump gate |
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: 20190101 |