CN109611264A - A kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device - Google Patents
A kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device Download PDFInfo
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- CN109611264A CN109611264A CN201811447515.0A CN201811447515A CN109611264A CN 109611264 A CN109611264 A CN 109611264A CN 201811447515 A CN201811447515 A CN 201811447515A CN 109611264 A CN109611264 A CN 109611264A
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- 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
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
-
- 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
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- 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
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/121—Blades, their form or construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/40—Type of control system
- F05B2270/402—Type of control system passive or reactive, e.g. using large wind vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/604—Control system actuates through hydraulic actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/70—Type of control algorithm
- F05B2270/705—Type of control algorithm proportional-integral
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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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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention relates to a kind of flow increasing formula intelligence hydraulic turbine systems with involute shape tail water stream flow-increasing device, including bulb-type hydraulic generating set, it is characterized in that, it further include involute shape tail water stream flow-increasing device and tail water stream mode controller, the involute shape tail water stream flow-increasing device is by stress sensing unit, flow increasing gear unit, successively parallel axial direction is arranged flow increasing releasing unit with the involute shape runner unit with involute shape runner bucket, the involute shape runner bucket is axially gradually to be stretched according to involute along involute shape runner boss, it is evenly arranged in space crossed distorted shape in the inner circumferential wall of involute shape runner boss, the tail water stream mode controller controls the blade angle β of bulb-type hydraulic generating set runner bucket respectively1Size, involute shape runner bucket blade angle β2Size and incude drive rod moving distance x size.The present invention can make full use of a large amount of remaining kinetic energy in tail water stream and generate electricity.
Description
Technical field
The invention belongs to technical field of hydroelectric generation, more particularly to a kind of increasing with involute shape tail water stream flow-increasing device
Streaming intelligence hydraulic turbine system.
Background technique
China's low-head hydraulic resource very abundant, the resource are typically in the developed area of rivers middle and lower reaches.Closely
In a little years, these regional economic developments are rapid, and power demand speedup is very fast.But these areas are typically all energy shortage area,
Developable middle and high head water power resource had just been developed before the 1990s to be finished.In order to meet this area's economy
The needs of rapid development, people transfer exploitation low water head resource again.Tubular power station is that exploitation low-head hydraulic resource is best
Mode, be generally used for 25m head or less.It has stream compared with middle and high water head power station, low water head vertical axial-flow power station
Road is simple, the hydraulic loss of flow channels is small, set structure is compact, the construction period is short, investment is small, it is fast to produce effects, it is few to flood immigrant
The advantages that.
But structure is complicated, figure is huge, mechanical efficiency is relatively low for bulb-type hydraulic generating set, statistics shows: passing through
The kinetic energy of flow water turbine outlet of rotary wheel water flow accounts for about 45% of gross head or more, maximum reachable 90%.Although there is draft tube to return
This part kinetic energy is received, but due to the excavated volume problem of the Hydraulic Design of draft tube and consideration Practical Project, is recovered energy
Ability or very limited.
Chinese patent application 200810072478.X discloses a kind of " combined type water energy electric generating apparatus ", if the device includes
Dry column installing frame, each column installing frame are equipped with several lateral water flowing ducts along longitudinal direction, and correspondence is set on each column installing frame
There is the lifting eliminator plate to open and close the column installing frame, is respectively equipped with impeller on each lateral water flowing duct, is set to same row
Each impeller shaft rear end be sequentially connected respectively through a pair of of circular cone tumbler gear and a vertical power transmission shaft, through vertical power
Transmission shaft drives the generator for being set to vertical power transmission shaft upper end to work.Although the device can be according to river actual conditions, group
It closes and forms adaptable dam body formula hydroelectric installation, and structure is simple, water flow is easily controllable, but the device does not consider
When different operating conditions, the efficiency of impeller has biggish difference, thereby results in the inefficient of whole device, hydraulic performance is poor.
Chinese patent application 201410205181.1 discloses a kind of " bank base energy gathering type wave energy generating set ", the device
Wave energy can be assembled and wave is converted into the ocean current in pipeline, drive turbine generation using ocean current.Meanwhile bank shrinkage water
Road is in broadening formation, opening be ellipse and be at turbine it is round, the two has very big area ratio, therefore the water flow at turbine
Speed is opening several times, plays the role of cumulative.The device construction is simple, generator are not contacted with seawater, high reliablity, and
And effectively improve the transfer efficiency of water flow.But energy-gathering device disengaging open area is fixed, it cannot be according to speed of incoming flow
Size, dynamic adjust cumulative number, cause the electric energy frequency of output unstable, inferior quality.
Chinese patent application 201510601845.0 discloses a kind of " water conservancy diversion energy gathering type wave, tide, ocean current and wind-force four
Unify electricity generation system ", which sets several arc deflectors being uniformly distributed along the circumference on the base, when wave, tide, ocean current warp
When crossing the present apparatus, seawater will form seawater under the guiding role of arc deflector and be vortexed, since seawater eddy current effect makes thereon
The air of side is formed simultaneously air-swirl, is vortexed in seawater and impeller, air-swirl is pushed to push the collective effect underdrive of fan blade
Kinetic energy is passed to booster engine by pipe high speed rotation, transmission tube, and speedup machine driving generator high speed rotation produces electricl energy.The device gram
The problem that existing generation mode is single, generating efficiency is low has been taken, electricity generation is realized.But the present apparatus only relies on cross section
Shape is that the arc deflector of half moon comes water conservancy diversion, cumulative, and cumulative effect is very little, therefore cannot make full use of water
Can, cause the waste of resource.
In conclusion existing combined hydroelectric power generating equipment is only the series connection of different number power generator, do not consider
The problem of unit efficiency caused by the change of operating condition reduces, therefore fail to give full play to the maximum performance of device.Meanwhile it is poly-
The diminution that energy device relies solely on cross-sectional area carrys out flow increasing, can not adjust the more of flow increasing according to the size dynamic of inlet flow rate
It is few, cause the electric energy frequency of output indefinite, performance is bad.How overcome the deficiencies in the prior art has become current hydroelectric generation skill
One of important problem urgently to be resolved in art field.
Summary of the invention
The purpose of the present invention is provide a kind of band involute shape tail water stream flow-increasing device in order to overcome the deficiencies of the prior art
Flow increasing formula intelligence hydraulic turbine system, involute shape tail water stream flow-increasing device of the invention can generate electricity according to upstream through-flow type hydro-turbo
The tail water uninterrupted dynamic adjustment flow increasing effect of unit discharge, and it is tubular to control respectively by tail water stream mode controller
Turbine-generator units and involute shape tail water stream flow-increasing device, to guarantee that involute shape tail water stream flow-increasing device can be sufficiently sharp
The tail water stream energy being discharged with bulb-type hydraulic generating set, can make external generator while improving waterpower utilization rate again
The excellent electric energy of output quality.
A kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device proposed according to the present invention, packet
Include the bulb-type hydraulic generating set with draft tube, which is characterized in that further include involute shape tail water stream flow-increasing device and tail water
Stream mode controller, the involute shape tail water stream flow-increasing device are discharged single by stress sensing unit, flow increasing gear unit, flow increasing
Successively parallel axial direction is arranged member with the involute shape runner unit with involute shape runner bucket；The involute shape tail water stream increases
The outlet end of the draft tube of bulb-type hydraulic generating set is arranged in stream device, and the tail water stream mode controller controls respectively to be passed through
The blade angle β of streaming runner of hydro-generating unit blade1Size, involute shape runner bucket blade angle β2Size
And the size of the moving distance x of induction drive rod, and gained deviation delta β1、Δβ2Result can be corrected with Δ x, from
And realize the dynamic adjustment of flow increasing formula intelligence hydraulic turbine system；The involute shape runner unit includes pod influent side, gradually
Stretch linear runner bucket, involute shape runner boss, pod, pod water outlet side, runner support, the involute shape runner
Blade, involute shape runner boss are placed in pod, and the involute shape runner bucket is according to involute along involute shape
Runner boss axially gradually stretches, and the inner circumferential wall of involute shape runner boss is evenly arranged in space crossed distorted shape
On, the aerofoil section curve key point coordinate of axially different distance is as shown in the table, and X, Y respectively represent the space coordinate of key point
Value, the coordinate at wheel hub leading edge axial direction 55cm are as shown in table 1:
Table 1
| Serial number | X | Y | Serial number | X | Y |
| 1 | 0.741 | -8.613 | 11 | 9.299 | -6.796 |
| 2 | 1.728 | -9.705 | 12 | 7.295 | -4.630 |
| 3 | 2.712 | -10.800 | 13 | 6.296 | -3.544 |
| 4 | 3.696 | -11.895 | 14 | 8.297 | -5.716 |
| 5 | 4.683 | -12.987 | 15 | 10.307 | -7.876 |
| 6 | 5.667 | -14.082 | 16 | 15.371 | -13.243 |
| 7 | 6.651 | -15.174 | 17 | 13.337 | -11.104 |
| 8 | 7.638 | -16.269 | 18 | 14.354 | -12.175 |
| 9 | 8.622 | -17.361 | 19 | 11.315 | -8.953 |
| 10 | 9.606 | -18.456 | 20 | 12.326 | -10.030 |
Two curvilinear equations after fitting are as follows:
Zuo Xian: y=-1.1103x-7.7888；
Right string: y=0.0023x2-1.1177x+3.4031；
The coordinate at leading edge axial direction 110cm apart from wheel hub is as shown in table 2:
Table 2
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=0.4259x3+13.326x2+150.56x+607.84；
Right string: y=-0.005x3-0.0097x2+9.5135x+31.506；
The coordinate at leading edge axial direction 220cm apart from wheel hub is as shown in table 3:
Table 3
| Serial number | X | Y | Serial number | X | Y |
| 1 | 66.033 | -18.510 | 11 | 69.479 | -8.317 |
| 2 | 81.525 | -21.804 | 12 | 85.790 | -10.465 |
| 3 | 97.020 | -25.098 | 13 | 102.110 | -12.514 |
| 4 | 112.515 | -28.389 | 14 | 118.442 | -14.497 |
| 5 | 128.007 | -31.683 | 15 | 134.777 | -16.426 |
| 6 | 143.502 | -34.977 | 16 | 151.121 | -18.319 |
| 7 | 158.994 | -38.271 | 17 | 167.465 | -20.182 |
| 8 | 174.489 | -41.562 | 18 | 183.812 | -22.021 |
| 9 | 189.984 | -44.856 | 19 | 200.159 | -23.845 |
| 10 | 205.476 | -48.150 | 20 | 216.512 | -25.654 |
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=-0.2126x-4.4751；
Right string: y=-0.1173x-0.4564.
The output power P of the flow increasing formula intelligence hydraulic turbine system and the blade of bulb-type hydraulic generating set runner bucket
Angle beta1And the blade angle β of involute shape runner bucket2With the relational expression of the moving distance x of induction drive rod are as follows:In formula: ρ is the density of water, and ρ value is 1000kg/m3, Q be pass through flow increasing formula
The flow of intelligent hydraulic turbine system；The control parameter of flow increasing formula intelligence hydraulic turbine system is as shown in table 4:
Table 4
The stress sensing unit of the involute shape tail water stream flow-increasing device includes stress tablet and induction drive rod, institute
Stating flow increasing gear unit includes gear, rack gear, flow increasing balancing spring, and the flow increasing releasing unit includes upper movable rod, lower work
Dynamic connecting rod, top sheave, lower sheave, upper rail, lower railway, upper flow control plate, lower flow control plate；The stress tablet and induction drive
Bar connection, the induction drive rod are fixedly connected with gear, and the wheel and rack engagement, the right end of the rack gear and flow increasing are flat
The left end connection of weighing apparatus spring, the left end of the rack gear are connect with one end of one end of upper movable rod and lower movable rod respectively,
The upper movable rod is connect by top sheave with upper flow control plate, and the lower movable rod is connected by lower sheave and lower flow control plate
It connects, the upper flow control plate and top sheave are embedded in upper rail, and the lower flow control plate and lower sheave are embedded in lower railway.
The tail water stream mode controller includes power controller, signal processor, hydraulic controller and executing agency, institute
Stating executing agency includes push-plate and rotating bar, difference in the bulb-type hydraulic generating set wheel hub and involute shape runner boss
Be arranged executing agency, the push-plate by rotating bar respectively with bulb-type hydraulic generating set runner bucket, involute shape runner
The center of blade connects, and the rotating bar turns around bulb-type hydraulic generating set runner bucket and involute shape runner bucket center
Dynamic, the hydraulic controller piston rod is connect with push-plate, the stress tablet in the involute shape tail water stream flow-increasing device by
The control signal of signal processor controls.
Realization principle of the invention is: after the starting of flow increasing formula intelligence hydraulic turbine system, water flow first passes around through-flow type hydro-turbo
The water inlet flow channel of generating set bypasses vertical shaft and bulb, and velocity circulation is formed at the guide vane of bulb-type hydraulic generating set
It converges afterwards and is combined into runner, water impact bulb-type hydraulic generating set runner bucket is turned by bulb-type hydraulic generating set
The energy of water flow is converted to rotating mechanical energy by impeller blade, while driving generator to turn by being placed in the intracorporal combination bearing of light bulb
Son rotation, converts mechanical energy into electric energy, subsequent water flow enters the draft tube of bulb-type hydraulic generating set, due in tail water
There is a large amount of remaining kinetic energy, therefore water flow continues into involute shape tail water stream flow-increasing device；By stress tablet according to Lai
The size for flowing flow Q, passes to tail water stream mode controller for signal, signal processor is handled and fed back to signal, instead
The signal of feedback controls induction drive rod, by induction drive rod successively with moving gear, rack gear, upper movable rod, lower activity
Connecting rod, and then the position of upper flow control plate, lower flow control plate is adjusted, realize the purpose for changing flow increasing effect in real time；Last water
Stream enters involute shape runner unit by pod influent side, does work to involute shape runner bucket, turns remaining kinetic energy
It is changed to the rotating mechanical energy of involute shape runner, the external generator being attached thereto then is passed torque to and generates electricity, from
And realize and mechanical energy is again converted to electric energy, to a large amount of remaining kinetic energies existing at bulb-type hydraulic generating set outlet of rotary wheel
It is made full use of.In the flow increasing formula intelligence hydraulic turbine system operational process, tail water stream mode controller is according to flow
Size calculates the Optimum Leaves of real-time bulb-type hydraulic generating set and involute shape runner unit by power controller
Angle, the blade angle β with real-time bulb-type hydraulic generating set runner bucket1And the blade angle of involute shape runner bucket
Spend β2Compare, gained deviation delta β1With Δ β2Current signal, which is converted to, after PI correction link passes to hydraulic controller；Hydraulic control
Device processed drives push-plate movement by controlling hydraulic controller piston rod and being moved with real-time current vs, by turning
Lever is finally adjusted the blade angle of bulb-type hydraulic generating set and involute shape runner unit, makes through-flow type hydro-turbo
Generating set and involute shape runner unit can keep peak efficiency under different flow, to guarantee entire flow increasing formula intelligence
Waterpower utilization rate highest of the energy hydraulic turbine system under different operating conditions, output power are maximum.
Its remarkable advantage is the present invention compared with prior art:
First, a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device proposed by the present invention is
On the basis of bulb-type hydraulic generating set, involute shape tail water stream flow-increasing device and tail water stream mode controller are added, is had
It solves the problems, such as to effect that the generally existing tubular turbine tail water kinetic energy of the prior art is remaining excessive, is sent out for through-flow type hydro-turbo
The development of motor group provides new solution, has filled up the technological gap of this field.
Second, involute shape tail water stream flow-increasing device proposed by the present invention can be according to the size of upstream flowrate, adaptively
Ground adjusts the position of two flow control plates, makes it under different flows, generates corresponding flow increasing effect, is involute shape runner list
Member is preferably provided safeguard using tail water energy and the excellent electric energy of output quality.
The structure of third, involute shape runner unit proposed by the present invention is simple, and size is small, easy to process, economic cost
It is low, and between involute shape runner bucket rear portion channel size it is larger, can preferably utilize water energy, can be used as the prior art
Upgraded product.
4th, tail water stream mode controller proposed by the present invention can either adjust control involute shape tail water stream flow-increasing device
Flow increasing effect, and can be according to the difference of flow, dynamic adjusts bulb-type hydraulic generating set and involute shape runner unit
Blade angle, to enable water flow utilization rate highest of the flow increasing formula intelligence hydraulic turbine system under different flow, output power
It is maximum.
Detailed description of the invention
Fig. 1 is a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device proposed by the present invention
Overall structure diagram.
Fig. 2 is structural schematic diagram when involute shape tail water stream flow-increasing device proposed by the present invention is in full closing state.
Fig. 3 is structural schematic diagram when involute shape tail water stream flow-increasing device proposed by the present invention is in semi-open state.
Fig. 4 is structural schematic diagram when involute shape tail water stream flow-increasing device proposed by the present invention is in full open state.
Fig. 5 is the schematic perspective view of involute shape runner proposed by the present invention.
Fig. 6 is the channel size labeling position schematic diagram of involute shape runner unit proposed by the present invention.
Fig. 7 is the working principle block flowsheet schematic diagram of tail water stream mode controller proposed by the present invention.
Fig. 8 is the link position schematic diagram of hydraulic controller proposed by the present invention and executing agency.
Number explanation in attached drawing: water inlet flow channel 1, vertical shaft 2, combination bearing 3, guide vane 4, bulb 5, generator 6, tubular
Seat 7, runner 9, wheel hub 10, draft tube 11, tail water stream mode controller 12, is gradually stretched bulb-type hydraulic generating set runner bucket 8
Linear tail water stream flow-increasing device 13, stress tablet 13-1, induction drive rod 13-2, gear 13-3, flow increasing balancing spring 13-4,
Rack gear 13-5, upper movable rod 13-7, lower movable rod 13-6, top sheave 13-8, lower sheave 13-9, upper flow control plate 13-10, under
Flow control plate 13-13, upper rail 13-11, lower railway 13-12, pod influent side 13-14, involute shape runner bucket 13-15,
Involute shape runner boss 13-16, it pod 13-17, pod water outlet side 13-18, runner support 13-19, rotating bar 14, pushes away
Disk 15, hydraulic controller piston rod 16, hydraulic controller 17, involute shape runner bucket 13-15 minimum diameter D4, involute
The maximum dimension D of shape runner bucket 13-155, pod 13-17 import internal diameter D1, pod 13-17 import outer diameter D2, lead
The outlet diameter D of stream cover 13-173, involute shape runner boss 13-16 diameter Dh。
Specific embodiment
A specific embodiment of the invention is described in further detail with reference to the accompanying drawings and examples.
In conjunction with Fig. 1, the invention proposes a kind of flow increasing formula intelligence hydraulic turbine systems with involute shape tail water stream flow-increasing device
System, including band 11 bulb-type hydraulic generating set of draft tube, further include involute shape tail water stream flow-increasing device 13 and tail water stream shape
State controller 12, the involute shape tail water stream flow-increasing device 13 are discharged single by stress sensing unit, flow increasing gear unit, flow increasing
Successively parallel axial direction is arranged member with the involute shape runner unit with involute shape runner bucket 13-15；The involute shape tail
The outlet end of the draft tube 11 of bulb-type hydraulic generating set, the tail water stream mode controller is arranged in water flow flow-increasing device 13
12 control the blade angle β of bulb-type hydraulic generating set runner bucket 8 respectively1Size, involute shape runner bucket 13-15
Blade angle β2Size and incude drive rod 13-2 moving distance x size, and gained deviation delta β1、Δβ2With Δ x
Result can be corrected, to realize the dynamic adjustment of flow increasing formula intelligence hydraulic turbine system；The involute shape runner list
Member includes pod influent side 13-14, involute shape runner bucket 13-15, involute shape runner boss 13-16, pod 13-
17, pod water outlet side 13-18, runner support 13-19, the involute shape runner bucket 13-15, involute shape runner boss
13-16 is placed in pod 13-17, and the quantity of the involute shape runner bucket 13-15 is 2~5, and the involute shape turns
Impeller blade 13-15 is axially gradually to be stretched according to involute along involute shape runner boss 13-16, is in space crossed distorted shape
It is evenly arranged in the inner circumferential wall of involute shape runner boss 13-16, the aerofoil section curve key point of axially different distance
Coordinate is as shown in the table, and X, Y respectively represent the spatial value of key point, the coordinate such as table at wheel hub leading edge axial direction 55cm
Shown in 1:
Table 1
| Serial number | X | Y | Serial number | X | Y |
| 1 | 0.741 | -8.613 | 11 | 9.299 | -6.796 |
| 2 | 1.728 | -9.705 | 12 | 7.295 | -4.630 |
| 3 | 2.712 | -10.800 | 13 | 6.296 | -3.544 |
| 4 | 3.696 | -11.895 | 14 | 8.297 | -5.716 |
| 5 | 4.683 | -12.987 | 15 | 10.307 | -7.876 |
| 6 | 5.667 | -14.082 | 16 | 15.371 | -13.243 |
| 7 | 6.651 | -15.174 | 17 | 13.337 | -11.104 |
| 8 | 7.638 | -16.269 | 18 | 14.354 | -12.175 |
| 9 | 8.622 | -17.361 | 19 | 11.315 | -8.953 |
| 10 | 9.606 | -18.456 | 20 | 12.326 | -10.030 |
Two curvilinear equations after fitting are as follows:
Zuo Xian: y=-1.1103x-7.7888；
Right string: y=0.0023x2-1.1177x+3.4031；
The coordinate at leading edge axial direction 110cm apart from wheel hub is as shown in table 2:
Table 2
| Serial number | X | Y | Serial number | X | Y |
| 1 | -9.780 | 11.601 | 11 | -2.173 | 10.844 |
| 2 | -9.513 | 14.895 | 12 | -1.831 | 14.075 |
| 3 | -9.258 | 18.192 | 13 | -1.492 | 17.306 |
| 4 | -9.018 | 21.489 | 14 | -1.153 | 20.540 |
| 5 | -8.793 | 24.786 | 15 | -0.814 | 23.771 |
| 6 | -8.577 | 28.083 | 16 | -0.472 | 27.002 |
| 7 | -8.379 | 31.383 | 17 | -0.133 | 30.233 |
| 8 | -8.187 | 34.683 | 18 | 0.206 | 33.467 |
| 9 | -8.010 | 37.983 | 19 | 0.545 | 36.698 |
| 10 | -7.842 | 41.283 | 20 | 0.887 | 39.929 |
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=0.4259x3+13.326x2+150.56x+607.84；
Right string: y=-0.005x3-0.0097x2+9.5135x+31.506；
The coordinate at leading edge axial direction 220cm apart from wheel hub is as shown in table 3:
Table 3
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=-0.2126x-4.4751；
Right string: y=-0.1173x-0.4564；
The bulb-type hydraulic generating set include water inlet flow channel 1, vertical shaft 2, bulb 5, generator 6, combination bearing 3,
Tubed skin flap 7, guide vane 4, runner 9, bulb-type hydraulic generating set runner bucket 8, wheel hub 10, draft tube 11, the generator 6 with
Runner 9 is connected by combination bearing 3, and the generator 6 is placed in bulb 5 with combination bearing 3, and the bulb 5 is with tubular
It is supported based on seat 7, the strong and torque of institute suffered by unit all passes through support and is transmitted in concrete foundation.
In conjunction with Fig. 2, Fig. 3 and Fig. 4, the stress sensing unit of involute shape tail water stream flow-increasing device of the present invention includes
Stress tablet 13-1 and induction drive rod 13-2, the flow increasing gear unit include gear 13-3, rack gear 13-5, flow increasing balance
Spring 13-4, the flow increasing releasing unit include upper movable rod 13-7, lower movable rod 13-6, top sheave 13-8, lower sheave
13-9, upper rail 13-11, lower railway 13-12, upper flow control plate 13-10, lower flow control plate 13-13；The stress tablet 13-1's
Area a meets relational expression:In formula: ρ is the density of water, and ρ value is 1000kg/m3, A be upper flow control plate 13-10 or
Area, the Q of lower flow control plate 13-130The power that stress tablet 13-1 is subject to when flow, F when for rated power are rated power；
The stress tablet 13-1 is connect with induction drive rod 13-2, and the length of the induction drive rod 13-2 is 50~90cm, institute
It states induction drive rod 13-2 to be fixedly connected with gear 13-3, the number of teeth of the gear 13-3 is 35~55, the gear 13-3
Center is fixed with wall surface, makes gear 13-3 is only rotatable can not move left and right, the gear 13-3 is engaged with rack gear 13-5, described
The right end of the length 30~90cm, the rack gear 13-5 of rack gear 13-5 are connect with the left end of flow increasing balancing spring 13-4, the increasing
The length of mobile equilibrium spring 13-4 be 20~35cm, the left end of the rack gear 13-5 respectively with one end of upper movable rod 13-7 and
One end of lower movable rod 13-6 connects, and the upper movable rod 13-7 is connect by top sheave 13-8 with upper flow control plate 13-10,
The lower movable rod 13-6 is connect by lower sheave 13-9 with lower flow control plate 13-13, the upper flow control plate 13-10 and top sheave
13-8 is embedded in upper rail 13-11, and the lower flow control plate 13-13 and lower sheave 13-9 are embedded in lower railway 13-12.
In conjunction with Fig. 5 and Fig. 6, the diameter D of involute shape runner boss 13-16 of the present inventionhWith involute shape runner
The minimum diameter D of blade 13-154Ratio be 1.12~1.62；The maximum dimension D of the involute shape runner bucket 13-155
With the minimum diameter D of involute shape runner bucket 13-154Ratio be 2.12~2.64；In the import of the pod 13-17
Diameter D1With the minimum diameter D of involute shape runner bucket 13-154Ratio be 4.10~5.50；The pod 13-17 into
Mouth outer diameter D2With the minimum diameter D of involute shape runner bucket 13-154Ratio be 4.34~5.65；The pod 13-17
Outlet diameter D3With the minimum diameter D of involute shape runner bucket 13-154Ratio be 5.46~6.78.
In conjunction with Fig. 7, tail water stream mode controller 12 of the present invention includes power controller, signal processor, hydraulic
Controller 17 and executing agency, the stress tablet 13-1 in the involute shape tail water stream flow-increasing device 13 is by signal processor
The control of control signal, the tail water stream mode controller 12 controls the leaf of bulb-type hydraulic generating set runner bucket 8 respectively
Piece angle beta1Size, involute shape runner bucket 13-15 blade angle β2Size and incude drive rod 13-2 movement
The size of distance x, and gained deviation delta β1、Δβ2Result can be corrected with Δ x, to realize flow increasing formula intelligence water wheels
The dynamic of machine system adjusts；The output power P and bulb-type hydraulic generating set runner bucket 8 of flow increasing formula intelligence hydraulic turbine system
Blade angle β1, involute shape runner bucket 13-15 blade angle β2And the pass of the moving distance x of induction drive rod 13-2
It is formula are as follows:In formula: Q is the flow by flow increasing formula intelligence hydraulic turbine system；
The control parameter of the flow increasing formula intelligence hydraulic turbine system is as shown in table 4:
Table 4
The configuration requirement of tail water stream mode controller 12 are as follows: PLC power controller etc. can be used in the power controller；Institute
Stating signal processor can be used digital signal processor etc.；Electric hydraulic controller etc. can be used in the hydraulic controller 17.
In conjunction with Fig. 8, in bulb-type hydraulic generating set wheel hub 10 of the present invention and involute shape runner boss 13-16
Executing agency is respectively set, the executing agency includes push-plate 15 and rotating bar 14, and the push-plate 15 is disc-shaped structure, described
Push-plate 15 by rotating bar 14 respectively with bulb-type hydraulic generating set runner bucket 8 and involute shape runner bucket 13-15
Center connection, the rotating bar 14 are right-angle structure, and the quantity of the rotating bar 14 turns with bulb-type hydraulic generating set respectively
The quantity of impeller blade 8 and involute shape runner bucket 13-15 are equal, and the rotating bar 14 is around bulb-type hydraulic generating set runner
The center rotating of blade 8 and involute shape runner bucket 13-15, the rotating bar 14 are connected by screw bolts with push-plate 15, bolt
Quantity be 3~6, the push-plate 15 of the hydraulic controller piston rod 16 and executing agency connects, the movement of the push-plate 15
Direction is consistent with the direction of motion of piston rod 22.
A kind of application of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device proposed by the present invention
Embodiment is as follows:
The design scheme of embodiment 1 is identical with the above-mentioned overall technological scheme of the present invention, the design of main component
Parameter is announced as follows:
The quantity of involute shape runner bucket 13-15 of the invention is 2；The minimum of involute shape runner bucket 13-15
Diameter D4For 40cm；The diameter D of involute shape runner boss 13-16hFor 55cm；The maximum of involute shape runner bucket 13-15 is straight
Diameter D5For 95cm；The import internal diameter D of pod 13-171For the import outer diameter D of 210cm, pod 13-172For 220cm, water conservancy diversion
Cover the outlet diameter D of 13-173For 250cm；The area a of stress tablet 13-1 is 15cm2；The diameter of push-plate 15 is 400cm；Turn
The long 130cm of the short side of lever 14, long side length 230cm；The length of hydraulic controller piston rod 16 is 330cm；Incude drive rod 13-
2 length is 60cm；The number of teeth of gear 13-3 is 40；The length of flow increasing balancing spring 13-4 is 25cm；Flow is 2.2m3/
s、β1For 66.75 °, β2When being 54 °, the output power of flow increasing formula intelligence hydraulic turbine system is 585.8kW.
The design scheme of embodiment 2 is identical with the above-mentioned overall technological scheme of the present invention, the design of main component
Parameter is announced as follows:
The quantity of involute shape runner bucket 13-15 of the invention is 3；The minimum of involute shape runner bucket 13-15
Diameter D4For 50cm；The diameter D of involute shape runner boss 13-16hFor 75cm；The maximum of involute shape runner bucket 13-15 is straight
Diameter D5For 125cm；The import internal diameter D of pod 13-171For the import outer diameter D of 250cm, pod 13-172For 260cm, water conservancy diversion
Cover the outlet diameter D of 13-173For 300cm；The area a of stress tablet 13-1 is 20cm2；The diameter of push-plate 15 is 400cm；Turn
The long 150cm of the short side of lever 14, long side length 250cm；The length of hydraulic controller piston rod 16 is 350cm；Incude drive rod 13-
2 length is 65cm；The number of teeth of gear 13-3 is 40；The length of flow increasing balancing spring 13-4 is 30cm；Flow is 3.4m3/
s、β1For 62.25 °, β2When being 48 °, the output power of flow increasing formula intelligence hydraulic turbine system is 614.4kW.
The design scheme of embodiment 3 is identical with the above-mentioned overall technological scheme of the present invention, the design of main component
Parameter is announced as follows:
The quantity of involute shape runner bucket 13-15 of the invention is 5；The minimum of involute shape runner bucket 13-15
Diameter D4For 60cm；The diameter D of involute shape runner boss 13-16hFor 90cm；The maximum of involute shape runner bucket 13-15 is straight
Diameter D5For 145cm；The import internal diameter D of pod 13-171For the import outer diameter D of 310cm, pod 13-172For 320cm, water conservancy diversion
Cover the outlet diameter D of 13-173For 370cm；The area a of stress tablet 13-1 is 25cm2；The diameter of push-plate 15 is 420cm；Turn
The long 160cm of the short side of lever 14, long side length 260cm；The length of hydraulic controller piston rod 16 is 360cm；Incude drive rod 13-
2 length is 50cm；The number of teeth of gear 13-3 is 50；The length of flow increasing balancing spring 13-4 is 35cm；Flow is 4.4m3/
s、β1For 48 °, β2When being 37 °, the output power of flow increasing formula intelligence hydraulic turbine system is 574.6kW.
Implementation process of the invention are as follows: after the starting of flow increasing formula intelligence hydraulic turbine system, water flow first passes around through-flow type hydro-turbo
The water inlet flow channel 1 of generating set bypasses vertical shaft 2 and bulb 5, and speed is formed at the guide vane 4 of bulb-type hydraulic generating set
It is converged after circular rector and is combined into runner 9, water impact bulb-type hydraulic generating set runner bucket 8 is generated electricity by through-flow type hydro-turbo
The energy of water flow is converted to rotating mechanical energy, while 3 band of combination bearing by being placed in bulb 5 by unit runner bucket 8
Dynamic 6 rotor of generator rotation, converts mechanical energy into electric energy, subsequent water flow enters the draft tube of bulb-type hydraulic generating set
11, due to there is a large amount of remaining kinetic energy in tail water, water flow continues into involute shape tail water stream flow-increasing device 13；By by
Signal is passed to tail water stream mode controller 12, signal processor is to letter according to the size of inlet flow rate Q by power tablet 13-1
It number is handled and is fed back, the signal of feedback controls induction drive rod 13-2, is successively driven by induction drive rod 13-2
Gear 13-3, rack gear 13-5 and upper movable rod 13-7, lower movable rod 13-6, and then to upper flow control plate 13-10, upper flow control plate
The position of 13-13 is adjusted, and realizes the purpose for changing flow increasing effect in real time.When flow is larger, induction drive rod 13-2 to
Right movement, induction drive rod 13-2 band moving gear 13-3 rotate clockwise, rack gear 13-5 is moved to left, by upper movable rod 13-7 with
Lower movable rod 13-6 makes the opening between flow control plate become larger；When the flow if reduced, flow increasing balancing spring 13-4 makes rack gear 13-5
It moves to left, and then reduces the opening between flow control plate, flow increasing effect is consequently increased；Water flow passes through pod influent side later
13-14 enters involute shape runner unit, does work to involute shape runner bucket 13-15, is converted to remaining kinetic energy and gradually stretches
Then the rotating mechanical energy of linear runner passes torque to the external generator being attached thereto and generates electricity, thus realize by
Mechanical energy is again converted to electric energy, and last water flow is flowed out by pod water outlet side 13-18.In the flow increasing formula intelligence hydraulic turbine
In system operation, tail water stream mode controller 12 calculates real-time through-flow according to uninterrupted, by power controller
The Optimum Leaves angle of formula turbine-generator units and involute shape runner unit, with real-time bulb-type hydraulic generating set runner
The blade angle β of blade 81And the blade angle β of involute shape runner bucket 13-152Compare, gained deviation delta β1With Δ β2Through
Current signal is converted to after PI correction link passes to hydraulic controller 17；Hydraulic controller 17 by with real-time electric current pair
Than control hydraulic controller piston rod 16 is moved, and then push-plate 15 is driven to move, by rotating bar 14 finally to tubular
The blade angle of turbine-generator units and involute shape runner unit is adjusted, to guarantee the entire flow increasing formula intelligence hydraulic turbine
Waterpower utilization rate highest of the system under different operating conditions, output power are maximum.
The explanation being not directed in a specific embodiment of the invention belongs to technology well known in the art, can refer to well-known technique
It is implemented.
The present invention achieves satisfied trial effect through validation trial.
The above specific embodiment and embodiment are to a kind of band involute shape tail water stream flow-increasing device proposed by the present invention
Flow increasing formula intelligence hydraulic turbine system technical idea specific support, this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any equivalent variations or equivalent change done on the basis of the technical program, still
Belong to the range of technical solution of the present invention protection.
Claims (13)
1. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device, including passing through with draft tube (11)
Streaming turbine-generator units, which is characterized in that further include involute shape tail water stream flow-increasing device (13) and the control of tail water stream mode
Device (12), the involute shape tail water stream flow-increasing device (13) is by stress sensing unit, flow increasing gear unit, flow increasing releasing unit
With the successively parallel axial setting of the involute shape runner unit with involute shape runner bucket (13-15)；The involute shape tail
The outlet end of the draft tube (11) of bulb-type hydraulic generating set, the tail water stream mode control is arranged in water flow flow-increasing device (13)
Device (12) processed controls the blade angle β of bulb-type hydraulic generating set runner bucket (8) respectively1Size, involute shape runner
The blade angle β of blade (13-15)2Size and incude drive rod (13-2) moving distance x size, and gained deviation
Δβ1、Δβ2Result can be corrected with Δ x；The involute shape runner unit include pod influent side (13-14),
Involute shape runner bucket (13-15), involute shape runner boss (13-16), pod (13-17), pod water outlet side
(13-18), runner support (13-19), and the involute shape runner bucket (13-15), involute shape runner boss (13-16) are set
In pod (13-17), the involute shape runner bucket (13-15) is according to involute along involute shape runner boss
(13-16) is axially gradually stretched, and the circumferential direction of involute shape runner boss (13-16) is evenly arranged in space crossed distorted shape
On inner wall, the aerofoil section curve key point coordinate of axially different distance is as shown in the table, and X, Y respectively represent the space of key point
Coordinate value, the coordinate at wheel hub leading edge axial direction 55cm are as shown in table 1:
Table 1
Two curvilinear equations after fitting are as follows:
Zuo Xian: y=-1.1103x-7.7888；
Right string: y=0.0023x2-1.1177x+3.4031；
The coordinate at leading edge axial direction 110cm apart from wheel hub is as shown in table 2:
Table 2
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=0.4259x3+13.326x2+150.56x+607.84；
Right string: y=-0.005x3-0.0097x2+9.5135x+31.506；
The coordinate at leading edge axial direction 220cm apart from wheel hub is as shown in table 3:
Table 3
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=-0.2126x-4.4751；
Right string: y=-0.1173x-0.4564.
2. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 1,
It is characterized in that, the leaf of the output power P of flow increasing formula intelligence hydraulic turbine system and bulb-type hydraulic generating set runner bucket (8)
Piece angle beta1, involute shape runner bucket (13-15) blade angle β2With the pass of the moving distance x of induction drive rod (13-2)
It is formula are as follows:In formula: ρ is the density of water, and ρ value is 1000kg/m3, Q be pass through
The flow of flow increasing formula intelligence hydraulic turbine system；The control parameter of flow increasing formula intelligence hydraulic turbine system is as shown in table 4:
Table 4
3. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 2,
It is characterized in that, the stress sensing unit of the involute shape tail water stream flow-increasing device (13) include stress tablet (13-1) and
Incude drive rod (13-2), the flow increasing gear unit includes gear (13-3), rack gear (13-5), flow increasing balancing spring (13-
4), the flow increasing releasing unit includes upper movable rod (13-7), lower movable rod (13-6), top sheave (13-8), lower sheave
(13-9), upper rail (13-11), lower railway (13-12), upper flow control plate (13-10), lower flow control plate (13-13)；The stress sense
Plate (13-1) is answered to connect with induction drive rod (13-2), the induction drive rod (13-2) is fixedly connected with gear (13-3), institute
It states gear (13-3) to engage with rack gear (13-5), the right end of the rack gear (13-5) and the left end of flow increasing balancing spring (13-4) connect
It connects, the left end of the rack gear (13-5) connects with one end of upper movable rod (13-7) and one end of lower movable rod (13-6) respectively
It connects, the upper movable rod (13-7) is connect by top sheave (13-8) with upper flow control plate (13-10), the lower movable rod
(13-6) is connect by lower sheave (13-9) with lower flow control plate (13-13), the upper flow control plate (13-10) and top sheave (13-8)
It is embedded in upper rail (13-11), the lower flow control plate (13-13) and lower sheave (13-9) are embedded in lower railway (13-12).
4. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 3,
It is characterized in that, the tail water stream mode controller (12) include power controller, signal processor, hydraulic controller (17) and
Executing agency, the executing agency include push-plate (15) and rotating bar (14), the bulb-type hydraulic generating set wheel hub (10)
Be respectively set executing agency in involute shape runner boss (13-16), the push-plate (15) by rotating bar (14) respectively with
The center connection of bulb-type hydraulic generating set runner bucket (8), involute shape runner bucket (13-15), the rotating bar
(14) described hydraulic around bulb-type hydraulic generating set runner bucket (8) and involute shape runner bucket (13-15) center rotating
Controller piston rod (16) is connect with push-plate (15), the stress tablet in the involute shape tail water stream flow-increasing device (13)
(13-1) is controlled by the control signal of signal processor.
5. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 4,
It is characterized in that, the quantity of the involute shape runner bucket (13-15) is 2~5.
6. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 5,
It is characterized in that, the diameter D of the involute shape runner boss (13-16)hWith the minimum of involute shape runner bucket (13-15)
Diameter D4Ratio be 1.12~1.62.
7. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 6,
It is characterized in that, the maximum dimension D of the involute shape runner bucket (13-15)5With involute shape runner bucket (13-15)
Minimum diameter D4Ratio be 2.12~2.64.
8. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 7,
It is characterized in that, the import internal diameter D of the pod (13-17)1With the minimum diameter D of involute shape runner bucket (13-15)4
Ratio be 4.10~5.50.
9. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 8,
It is characterized in that, the import outer diameter D of the pod (13-17)2With the minimum diameter D of involute shape runner bucket (13-15)4
Ratio be 4.34~5.65.
10. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 9,
It is characterized in that, the outlet diameter D of the pod (13-17)3With the minimum diameter D of involute shape runner bucket (13-15)4
Ratio be 5.46~6.78.
11. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 10
System, which is characterized in that the area a of the stress tablet (13-1) meets relational expression:In formula: A is upper flow control plate
Area, the Q of (13-10) or lower flow control plate (13-13)0Stress tablet when flow, F when for rated power are rated power
The power that (13-1) is subject to.
12. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 11
System, which is characterized in that the length of induction drive rod (13-2) is 50~90cm, the number of teeth of the gear (13-3) is 35~
55,30~90cm of length of the rack gear (13-5), the length of the flow increasing balancing spring (13-4) is 20~35cm.
13. a kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device according to claim 12
System, which is characterized in that the rotating bar (14) is connected by screw bolts with push-plate (15), and the quantity of bolt is 3~6；Described turn
The structure of lever (14) be right-angle structure, the quantity of the rotating bar (14) respectively with bulb-type hydraulic generating set runner bucket
(8) and the quantity of involute shape runner bucket (13-15) is equal.
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