CN108661843A - A kind of water turbine movable guide vane pre-opening device - Google Patents
A kind of water turbine movable guide vane pre-opening device Download PDFInfo
- Publication number
- CN108661843A CN108661843A CN201810755849.8A CN201810755849A CN108661843A CN 108661843 A CN108661843 A CN 108661843A CN 201810755849 A CN201810755849 A CN 201810755849A CN 108661843 A CN108661843 A CN 108661843A
- Authority
- CN
- China
- Prior art keywords
- guide vane
- movable guide
- end cap
- small servomotor
- connecting plate
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
- F03B3/183—Adjustable vanes, e.g. wicket gates
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention relates to a kind of water turbine movable guide vane pre-opening devices,Guide vane pre-opening device is arranged to can be with other movable guide vane synchronization actions,The device that also can individually open simultaneously,When needing pre- unlatching guide vane with other movable guide vane synchronization actions,Small servomotor is fully open position,Pre- movable guide vane of opening is as other movable guide vanes,Synchronization action,When needing pre- unlatching guide vane single movement,Ensure that control ring is motionless,Small servomotor is slowly closed by oil gear,Small servomotor carries out closing movement by fulcrum of fixed connecting pin,Guide vane lever and end cap is driven to be rotated by rotation center of the movable guide vane diameter of axle center while its stroke slowly becomes smaller,By dividing valve key that pre- movable guide vane of opening is driven to be rotated towards opening direction while guide vane lever and end cap rotate,When small servomotor reaches closed positions,Pre- guide vane of opening reaches corresponding guide vane opening,Realize the pre- purpose opened guide vane and individually opened.
Description
Technical field：
According to the present invention is water turbine movable guide vane pre-opening device
Background technology：
High water head pump turbine is complicated and changeable in operating condition, as most important during pump turbine transitory
Link, " S " characteristic under hydraulic turbine start operating performance seriously affected safety and the stability of pump turbine, led to machine
Difficulty occurs when low water head startup is grid-connected for group, wherein being to improve pump turbine " S " using the asynchronous pre-opening device of guide vane
The reliable method of comparative maturity in characteristic
The general all synchronous guide vanes of water turbine movable guide vane, movable guide vane is controlled by servomotor and gate operating mechanism
Rotation, and the asynchronous pre-opening device of guide vane be whole show guide vane synchronous rotation before, individually control 2 or 4 guide vanes
It opens in advance and arrives certain aperture, overcome on turbine hydraulic the harm generated to unit operation of " S " characteristic, be then shut off non-same
Guide vane is walked to whole positions, is consistent with other guide vanes, then rotation is synchronized with other movable guide vanes.
Invention content：
The present invention is to provide a kind of water turbine movable guide vane pre-opening device, and this movable guide vane simultaneously also can be with it
Its movable guide vane equally rotates synchronously, and using components such as special guide vane lever, connecting plate, end cap, small servomotors, realization activity is led
The pre- open function of leaf.
The present invention is achieved by the following technical solutions：Guide vane lever (1) is that hollow structure is sleeved on movable guide vane (12),
Small servomotor (2) is mounted between guide vane lever (1), end cap (9) and connecting plate (10), and bearing shell (3) is mounted on end cap (9) and guide vane
In arm (1) endoporus, bearing shell (4) is mounted in connecting plate (10) endoporus, and straight pin (5) is for positioning end cap (9) and guide vane lever (1)
Between transmit torque, end cap (9) is fixed on movable guide vane (12) by bolt (6), plug screw (7) be mounted on end cap (9) in, prevent
Divide valve key (11) axial movement, bolt (8) that end cap (9) is fixed on guide vane lever (1), connecting plate (10) is sleeved on guide vane lever (1)
Upper end divides valve key (11) to be mounted between movable guide vane (12) and guide vane lever (1), transmits the torque of guide vane lever (1), plug (14)
And connector of the connecting pin (13) between small servomotor (2) and connecting plate (10), for installing small servomotor (2), connecting rod dress
(16) are set for connecting the device between control ring (15) and connecting plate (10).
Two axis holes are set on the connecting plate (10), and one connect with linkage (16), another connects with small
Power device (2) plug (14) connects, and two concentric pivots, upper pivot and end cap is arranged in small servomotor (2) ontology upper and lower ends
(9) bearing shell hole connects, and lower pivot is connect with guide vane lever (1) bearing shell hole, and the one of small servomotor (2) is secured by upper and lower pivot
End, and the other end of small servomotor (2) is fixed on by plug (14) and connecting pin (13) on connecting plate (10).
Operation principle：When small servomotor (2) is shown in a fully open operation, movable guide vane (12) is opened in advance and is closed,
And as other movable guide vanes be synchronous movement guide vane, realize the switch of movable guide vane by control ring, but when needing this
When movable guide vane is individually opened, oil gear slowly closes small servomotor (2), because control ring (15) and linkage (16) are protected
It holds motionless, causes connecting plate (10) fixed, small servomotor (2) is that fulcrum carries out closing fortune with fixed connecting pin (13)
It is dynamic, drive guide vane lever (1) and end cap (9) using movable guide vane (12) diameter of axle center as rotation center while stroke slowly becomes smaller
By dividing valve key (11) that pre- guide vane (12) of opening is driven to turn towards opening direction while rotation, guide vane lever (1) and end cap (9) rotate
It is dynamic, when small servomotor (2) is in full off state, movable guide vane (12) is opened in advance and reaches corresponding guide vane opening, realization activity
The purpose that guide vane (12) is opened in advance.
Description of the drawings：
Fig. 1：The present invention is in installation site front view
Fig. 2：Small servomotor (2) the installation site figure of the present invention
Fig. 3：Guide vane lever (1) structural schematic diagram in the present invention
Fig. 4：Connecting plate (10) structural schematic diagram in the present invention
Fig. 5：End cap (9) in the present invention
Fig. 6：Movable guide vane (12) of the present invention is (small servomotor (2) is in the open position) in the closed position
Fig. 7：Movable guide vane (12) of the present invention is in the open position (small servomotor (2) is in the closed position).
Specific implementation mode：
As shown in Figure 1, 2, the present invention is a kind of water turbine movable guide vane pre-opening device, and guide vane lever 1 is sleeved on movable guide vane
On 12, small servomotor 2 is mounted between guide vane lever 1, end cap 9 and connecting plate 10, and straight pin 5 positions between end cap 9 and guide vane lever 1
Torque is transmitted, end cap 9 is fixed on movable guide vane 12 by bolt 6, and plug screw 7 is mounted in end cap 9, prevents point valve key 11 from axially moving
Dynamic, end cap 9 is fixed on guide vane lever 1 by bolt 8, and connecting plate 10 is sleeved on 1 upper end of guide vane lever, and valve key 11 is divided to be mounted on movable guide vane
Between 12 and guide vane lever 1, the torque of guide vane lever 1 is transmitted, plug 14 and connecting pin 13 are between small servomotor 2 and connecting plate 10
Connector, for installing small servomotor 2, the device between ring 15 and connecting plate 10 in order to control of linkage 16.The connection
Two axis holes are set on plate 10, and one connect with linkage 16, another connect with 2 plug 14 of small servomotor, small relay
Two concentric pivots are arranged in 2 ontology upper and lower ends of device, and upper pivot is connect with 9 bearing shell hole of end cap, lower pivot and guide vane lever 1
Bearing shell hole connects, and one end of small servomotor 2 is secured by upper and lower pivot, and the other end of small servomotor 2 passes through plug 14
And connecting pin 13 is fixed on connecting plate 10,
A kind of water turbine movable guide vane pre-opening device, it is characterized in that：Two axis holes of setting on connecting plate 10, one
A to be connect with linkage 16, another connect with 2 plug 14 of small servomotor, 2 ontology upper and lower ends of small servomotor setting two
A concentric pivot, upper pivot are connect with 9 bearing shell hole of end cap, and lower pivot is connect with 1 bearing shell hole of guide vane lever, passes through upper and lower pivot
Axis secures one end of small servomotor 2, and the other end of small servomotor 2 is fixed on connecting plate by plug 14 and connecting pin 13
On 10.
Such as Fig. 3,4, shown in 5, respectively the design feature of guide vane lever 1, connecting plate 10 and end cap 9, wherein guide vane lever 1 are arranged
For step structure, the setting of connecting plate 10 connects an axis hole, is connect respectively with linkage 16 and 2 plug 14 of small servomotor.On end cap 9
One axis hole is set, is pivotally connected with 2 body upper part of small servomotor, for the critical piece of the small servomotor of fixation 2.
As shown in fig. 6, small servomotor 2 is in fully open position, the hydraulic turbine opens movable guide vane and is in closed positions in advance, small to connect
2 pivot center of power device is L1 at a distance from connecting plate center, pre- to open movable guide vane synchronization action as other movable guide vanes,
It opens and closes simultaneously.
As shown in fig. 7, when needing individually to open movable guide vane, small servomotor 2 is slowly closed, what stroke slowly became smaller
While by guide vane lever 1 and end cap 9 and dividing the equal components of valve key 11 that movable guide vane 12 is driven to rotate, when small servomotor 2 is in fully closed
When state, pre- movable guide vane 12 of opening reaches corresponding movable guide vane opening value S, 2 pivot center of small servomotor in connecting plate
The distance of the heart is L2, and the stroke of small servomotor is L1-L2.
Claims (2)
1. a kind of water turbine movable guide vane pre-opening device, it is characterized in that：Guide vane lever (1) is that hollow structure is sleeved on movable guide vane
(12) on, small servomotor (2) is mounted between guide vane lever (1), end cap (9) and connecting plate (10), and bearing shell (3) is mounted on end cap
(9) and in guide vane lever (1) endoporus, bearing shell (4) be mounted on connecting plate (10) endoporus in, straight pin (5) for position end cap (9) and
Torque is transmitted between guide vane lever (1), end cap (9) is fixed on movable guide vane (12) by bolt (6), and plug screw (7) is mounted on end cap
(9) in, prevent point valve key (11) axial movement, bolt (8) that end cap (9) is fixed on guide vane lever (1), connecting plate (10) is sleeved on
Guide vane lever (1) upper end divides valve key (11) to be mounted between movable guide vane (12) and guide vane lever (1), transmits the torsion of guide vane lever (1)
Square, the connector of plug (14) and connecting pin (13) between small servomotor (2) and connecting plate (10), for installing small servomotor
(2), linkage (16) is used to connect the device between control ring (15) and connecting plate (10).
2. a kind of water turbine movable guide vane pre-opening device according to claim 1, it is characterized in that：Connecting plate is set on (10)
Two axis holes are set, one connect with linkage (16), another connect with small servomotor (2) plug (14), small servomotor
(2) two concentric pivots are arranged in ontology upper and lower ends, and upper pivot is connect with end cap (9) bearing shell hole, lower pivot and guide vane
Arm (1) bearing shell hole connects, and one end of small servomotor (2) is secured by upper and lower pivot, and the other end of small servomotor (2) is logical
It crosses plug (14) and connecting pin (13) is fixed on connecting plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755849.8A CN108661843A (en) | 2018-07-11 | 2018-07-11 | A kind of water turbine movable guide vane pre-opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755849.8A CN108661843A (en) | 2018-07-11 | 2018-07-11 | A kind of water turbine movable guide vane pre-opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661843A true CN108661843A (en) | 2018-10-16 |
Family
ID=63773981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810755849.8A Pending CN108661843A (en) | 2018-07-11 | 2018-07-11 | A kind of water turbine movable guide vane pre-opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661843A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985485A (en) * | 1982-11-04 | 1984-05-17 | Hitachi Ltd | Mechanism for operating guide vane of hydraulic machine |
| JP2009222004A (en) * | 2008-03-18 | 2009-10-01 | Mitsubishi Heavy Ind Ltd | Guide vane drive for hydro turbine and pump turbine |
| CN105134455A (en) * | 2015-07-31 | 2015-12-09 | 国家电网公司 | Water turbine water guide blade connecting lever structure connected with movable water guide blade of unit |
-
2018
- 2018-07-11 CN CN201810755849.8A patent/CN108661843A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985485A (en) * | 1982-11-04 | 1984-05-17 | Hitachi Ltd | Mechanism for operating guide vane of hydraulic machine |
| JP2009222004A (en) * | 2008-03-18 | 2009-10-01 | Mitsubishi Heavy Ind Ltd | Guide vane drive for hydro turbine and pump turbine |
| CN105134455A (en) * | 2015-07-31 | 2015-12-09 | 国家电网公司 | Water turbine water guide blade connecting lever structure connected with movable water guide blade of unit |
Non-Patent Citations (1)
| Title |
|---|
| 梁勇: "《非同步导叶接力器在抽水蓄能电站中的应用》", 《青海电力》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181016 |
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| WD01 | Invention patent application deemed withdrawn after publication |