CN208089449U - A kind of mixed flow blade with dredging function - Google Patents
A kind of mixed flow blade with dredging function Download PDFInfo
- Publication number
- CN208089449U CN208089449U CN201820433301.7U CN201820433301U CN208089449U CN 208089449 U CN208089449 U CN 208089449U CN 201820433301 U CN201820433301 U CN 201820433301U CN 208089449 U CN208089449 U CN 208089449U
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- mixed flow
- size degradation
- flow blade
- traversing
- blade
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- 230000015556 catabolic process Effects 0.000 claims abstract description 82
- 238000006731 degradation reaction Methods 0.000 claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 230000003028 elevating effect Effects 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Hydraulic Turbines (AREA)
Abstract
The utility model is related to mixed flow blade industry more particularly to a kind of mixed flow blades with dredging function.Its technical solution is：A kind of mixed flow blade with dredging function, including mixed flow blade body；Transverse-moving mechanism is installed on the mixed flow blade body, elevating mechanism is connected on transverse-moving mechanism, size degradation driving mechanism is installed on elevating mechanism, the output end of size degradation driving mechanism is connected with the size degradation blade for dredging channel between adjacent mixed flow blade body.The utility model provides a kind of mixed flow blade having the function of dredging to avoid blocking, solves the problems, such as that existing mixed flow blade is easy to be blocked by sundries and influenced turbine efficiency and service life.
Description
Technical field
The utility model is related to mixed flow blade industry more particularly to a kind of mixed flow blades with dredging function.
Background technology
Francis turbine is also referred to as the Mark Lewis-Francis formula hydraulic turbine, belongs to one kind of reaction turbine, by American engineer
Mark Lewis-Francis was invented in 1849, also known as Francis turbine or spoke axial flow hydraulic turbine.Flow turns from surrounding radial inflow
Then wheel generally axially flows out runner, runner is by crown, lower ring and blade composition.Development trend in recent years is high water head, big
Capacity, higher specific speed and high efficiency.
Runner is directly connected to main shaft, is the rotatable parts of the type hydraulic turbine, runner by crown, lower ring, draft cone and
The fit dimension of several fixed blades compositions, shape and each component part it is different according to the head that it is used and not
Together.
Number of patent application is that the patent of invention of CN201410494941.5 discloses a kind of mixed flow suitable for dry season operation
Formula runner and the hydraulic turbine for being equipped with the runner, including crown and lower ring and be arranged between the crown and lower ring circumferentially
Multiple blades of cloth, Qk：Dry season average flow rate；Qr：Wet season rated discharge of hydraulic turbine； K：The ratio between Qk and Qr, K=Qk/
Qr；△βc：Suitable for wet season and the difference suitable for blade exit laying angle at the runner lower ring in dry season；△ β c and the K values
Negative correlation, i.e. K values are smaller, and △ β c are bigger.It is had the beneficial effect that using what runner provided by the invention and the hydraulic turbine were brought：Work as runoff
Formula power station dry season crosses after machine flow substantially reduces, fully to efficiently use water resource, raising hydraulic turbine off-design operating mode
Operational efficiency, under the premise of not changing other any mounted Component of Hydraulic Turbines, with dry season runner replace the wet season
Runner can realize the operation of power station dry season unit efficient stable with most economical means.
But the mixed flow blade of above-mentioned francis turbine runner can not be dredged.During the work time, sundries may for the hydraulic turbine
It is mixed into flow, when sundries is entered in francis turbine runner, leads to the mixed flow blade blockage of runner, influence the normal circulation of flow.
Mixed flow blade blockage not only causes work efficiency drop, also so that there is excessive vibration in runner and the damage that accelerates fatigue.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of mixed flow leaf having the function of dredging to avoid blocking
Piece solves the problems, such as that existing mixed flow blade is easy to be blocked by sundries and influenced turbine efficiency and service life.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of mixed flow blade with dredging function, including mixed flow blade body；It is equipped on the mixed flow blade body
Transverse-moving mechanism is connected with elevating mechanism on transverse-moving mechanism, size degradation driving mechanism is equipped on elevating mechanism, size degradation driving mechanism
Output end is connected with the size degradation blade for dredging channel between adjacent mixed flow blade body.
As the preferred embodiment of the utility model, the transverse-moving mechanism includes horizontal concrete chute, and horizontal concrete chute is fixed on mixed flow
On blade body, sliding block is arranged in horizontal concrete chute, sliding block is connect with elevating mechanism.
As the preferred embodiment of the utility model, it is connected on the sliding block for driving sliding block reciprocal in horizontal concrete chute
Mobile traversing driving device, traversing driving device are installed on mixed flow blade body.
As the preferred embodiment of the utility model, the traversing driving device includes traversing motor, the output of traversing motor
Axis connection has traversing retarder, traversing motor and traversing retarder to be mounted on mixed flow blade body, traversing retarder it is defeated
Shaft is connected with turntable, and the edge of turntable is hinged with connecting rod, and the other end and sliding block of connecting rod are hinged.
As the preferred embodiment of the utility model, the elevating mechanism be lifting hydraulic cylinder, the cylinder sleeve of lifting hydraulic cylinder with
Transverse-moving mechanism is fixed, and the piston rod of raise-lower hydraulic is connect with size degradation driving mechanism.
As the preferred embodiment of the utility model, the size degradation driving mechanism includes fixed plate, fixed plate and elevating mechanism
Connection, is separately installed with size degradation motor and size degradation retarder in fixed plate, and the output shaft of size degradation motor is defeated with size degradation retarder
Enter end connection, the output shaft of size degradation retarder is connect with size degradation blade.
Compared with prior art, the utility model has the beneficial effects that：
1, after the size degradation driving mechanism of the utility model starts, size degradation blade can will be miscellaneous between adjacent mixed flow blade body
Object carries out size degradation, the case where preventing the region between adjacent mixed flow blade body from blocking, so that flow is more stable,
The case where francis turbine runner operation is more steady, and effectively preventing the efficiency of the hydraulic turbine reduces.Transverse-moving mechanism can make size degradation blade
Transverse shifting in a certain range, to which size degradation blade can touch the transverse area of bigger.Elevating mechanism can make size degradation blade
It is longitudinal to be highly changed, to which size degradation blade can be random to the range of longitudinal bigger progress sundries.Size degradation blade can laterally may be used
Longitudinal movement so that the sundries in region by thorough size degradation can be avoided that stopping state occurs between adjacent mixed flow blade body.
2, sliding block can slide in horizontal concrete chute, then elevating mechanism, size degradation driving mechanism, size degradation blade are moved with sliding block
Dynamic, size degradation blade can clear up the sundries of certain transverse area, avoid blocking.Sliding block is freely slidable, ensure that broken
Solve steady reliable movement of blade during traversing.
3, traversing driving device can drive sliding block to be moved in horizontal concrete chute, easy to operate to which sliding block can automatically move,
It is easily controllable.
4, after traversing electric motor starting, traversing retarder driving disc rotation, connecting rod is acted under the driving of turntable and band
Movable slider moves back and forth in horizontal concrete chute.To which size degradation blade can move transverse reciprocating in certain transverse area so that phase
Sundries between adjacent mixed flow blade body can be cleaned.
5, lifting hydraulic cylinder can be such that size degradation driving mechanism accordingly lifts, and size degradation blade can be lifted accordingly, ensure size degradation blade
Broader range can be touched, sundries cleaning effect is improved.
6, after size degradation electric motor starting, size degradation retarder drives the rotation of size degradation blade, then size degradation blade can carry out sundries
Size degradation effectively prevents clogging, ensure that francis turbine runner stably and reliably works.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the part-structure figure of the utility model.
In figure, 1- mixed flow blade bodies, 2- transverse-moving mechanisms, 3- elevating mechanisms, 4- size degradation driving mechanisms, 5- size degradation blades,
6- traversing driving devices, 21- horizontal concrete chutes, 22- sliding blocks, 41- fixed plates, 42- size degradation motors, 43- size degradation retarders, 61- are horizontal
Move motor, the traversing retarders of 62-, 63- turntables, 64- connecting rods.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
Embodiment one
A kind of mixed flow blade with dredging function, including mixed flow blade body 1；It is installed on the mixed flow blade body 1
There is transverse-moving mechanism 2, elevating mechanism 3 is connected on transverse-moving mechanism 2, size degradation driving mechanism 4 is installed on elevating mechanism 3, size degradation drives
The output end of motivation structure 4 is connected with the size degradation blade 5 for dredging 1 channel of adjacent mixed flow blade body.
After the size degradation driving mechanism 4 of the utility model starts, size degradation blade 5 can will be between adjacent mixed flow blade body 1
Sundries carries out size degradation, the case where preventing the region between adjacent mixed flow blade body 1 from blocking, so that flow is more steady
The case where fixed, francis turbine runner operation is more steady, and effectively preventing the efficiency of the hydraulic turbine reduces.Transverse-moving mechanism 2 can make size degradation
The transverse shifting in a certain range of blade 5, to which size degradation blade 5 can touch the transverse area of bigger.Elevating mechanism 3 can make broken
The longitudinal direction of solution blade 5 is highly changed, to which size degradation blade 5 can be random to the range of longitudinal bigger progress sundries.Size degradation leaf
Piece 5 can be laterally longitudinally movable so that the sundries in region can be avoided occurring by thorough size degradation between adjacent mixed flow blade body 1
Stopping state.
Embodiment two
On the basis of embodiment one, the transverse-moving mechanism 2 includes horizontal concrete chute 21, and horizontal concrete chute 21 is fixed on mixed flow leaf
In piece main body 1, sliding block 22 is arranged in horizontal concrete chute 21, sliding block 22 is connect with elevating mechanism 3.
Sliding block 22 can slide in horizontal concrete chute 21, then elevating mechanism 3, size degradation driving mechanism 4,5, size degradation leaf are with sliding block
22 move together, and size degradation blade 5 can clear up the sundries of certain transverse area, avoid blocking.Sliding block 22 can free skating
It is dynamic, it ensure that steady reliable movement of the size degradation blade 5 during traversing.
Embodiment three
On the basis of embodiment one or embodiment two, it is connected on the sliding block 22 for driving sliding block 22 in transverse direction
The traversing driving device 6 moved back and forth in sliding slot 21, traversing driving device 6 are installed on mixed flow blade body 1.
Traversing driving device 6 can drive sliding block 22 to be moved in horizontal concrete chute 21, to which sliding block 22 can automatically move, operate
It is convenient, it is easily controllable.
Example IV
On the basis of above-mentioned any one embodiment, the traversing driving device 6 includes traversing motor 61, traversing motor
61 output shaft is connected with traversing retarder 62, and traversing motor 61 and traversing retarder 62 are mounted on mixed flow blade body 1,
The edge that the output shaft of traversing retarder 62 is connected with turntable 63,63 is hinged with connecting rod 64, the other end and the sliding block 22 of connecting rod 64
It is hinged.
After traversing motor 61 starts, the rotation of 62 driving disc 63 of traversing retarder, connecting rod 64 is under the driving of turntable 63
It acts and is moved back and forth in horizontal concrete chute 21 with movable slider 22.So that size degradation blade 5 can be laterally past in certain transverse area
It is multiple mobile so that the sundries between adjacent mixed flow blade body 1 can be cleaned.
Embodiment five
On the basis of above-mentioned any one embodiment, the elevating mechanism 3 is lifting hydraulic cylinder, the cylinder of lifting hydraulic cylinder
Set is fixed with transverse-moving mechanism 2, and the piston rod of raise-lower hydraulic is connect with size degradation driving mechanism 4.
Lifting hydraulic cylinder can be such that size degradation driving mechanism 4 accordingly lifts, and size degradation blade 5 can be lifted accordingly, ensure size degradation blade 5
Broader range can be touched, sundries cleaning effect is improved.
Embodiment six
On the basis of above-mentioned any one embodiment, the size degradation driving mechanism 4 include fixed plate 41, fixed plate 41 with
Elevating mechanism 3 connects, and size degradation motor 42 and size degradation retarder 43, the output of size degradation motor 42 are separately installed in fixed plate 41
Axis is connect with the input terminal of size degradation retarder 43, and the output shaft of size degradation retarder 43 is connect with size degradation blade 5.
After size degradation motor 42 starts, size degradation retarder 43 drives size degradation blade 5 to rotate, then size degradation blade 5 can be by sundries
Size degradation is carried out, clogging is effectively prevented, ensure that francis turbine runner stably and reliably works.
Claims (6)
1. a kind of mixed flow blade with dredging function, including mixed flow blade body (1)；It is characterized in that, the mixed flow blade
Transverse-moving mechanism (2) is installed in main body (1), elevating mechanism (3) is connected on transverse-moving mechanism (2), elevating mechanism is equipped on (3)
Size degradation driving mechanism (4), the output end of size degradation driving mechanism (4) is connected with to be led to for dredging between adjacent mixed flow blade body (1)
The size degradation blade (5) in road.
2. a kind of mixed flow blade with dredging function according to claim 1, which is characterized in that the transverse-moving mechanism
(2) include horizontal concrete chute (21), horizontal concrete chute (21) is fixed on mixed flow blade body (1), is arranged in horizontal concrete chute (21)
Sliding block (22), sliding block (22) are connect with elevating mechanism (3).
3. a kind of mixed flow blade with dredging function according to claim 2, which is characterized in that on the sliding block (22)
It is connected with the traversing driving device (6) for driving sliding block (22) to be moved back and forth in horizontal concrete chute (21), traversing driving device
(6) it is installed on mixed flow blade body (1).
4. a kind of mixed flow blade with dredging function according to claim 3, which is characterized in that the traversing driving machine
Structure (6) includes traversing motor (61), and the output shaft of traversing motor (61) is connected with traversing retarder (62), traversing motor (61) and
Traversing retarder (62) is mounted on mixed flow blade body (1), and the output shaft of traversing retarder (62) is connected with turntable (63),
(63) edge is hinged with connecting rod (64), and the other end and sliding block (22) of connecting rod (64) are hinged.
5. a kind of mixed flow blade with dredging function according to claim 1, which is characterized in that the elevating mechanism
(3) it is lifting hydraulic cylinder, the cylinder sleeve and transverse-moving mechanism (2) of lifting hydraulic cylinder are fixed, and piston rod and the size degradation of raise-lower hydraulic drive
Mechanism (4) connects.
6. a kind of mixed flow blade with dredging function according to Claims 1 to 5 any one, which is characterized in that institute
It includes fixed plate (41) to state size degradation driving mechanism (4), and fixed plate (41) is connect with elevating mechanism (3), in fixed plate (41) respectively
Size degradation motor (42) and size degradation retarder (43), the input of the output shaft and size degradation retarder (43) of size degradation motor (42) are installed
End connection, the output shaft of size degradation retarder (43) are connect with size degradation blade (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820433301.7U CN208089449U (en) | 2018-03-28 | 2018-03-28 | A kind of mixed flow blade with dredging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820433301.7U CN208089449U (en) | 2018-03-28 | 2018-03-28 | A kind of mixed flow blade with dredging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208089449U true CN208089449U (en) | 2018-11-13 |
Family
ID=64060641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820433301.7U Expired - Fee Related CN208089449U (en) | 2018-03-28 | 2018-03-28 | A kind of mixed flow blade with dredging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208089449U (en) |
-
2018
- 2018-03-28 CN CN201820433301.7U patent/CN208089449U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |