CN109681366A - Intelligent hydraulic turbine system with chain linear tail water stream flow-increasing device - Google Patents
Intelligent hydraulic turbine system with chain linear tail water stream flow-increasing device Download PDFInfo
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- CN109681366A CN109681366A CN201811447508.0A CN201811447508A CN109681366A CN 109681366 A CN109681366 A CN 109681366A CN 201811447508 A CN201811447508 A CN 201811447508A CN 109681366 A CN109681366 A CN 109681366A
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- chain linear
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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
- 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
- F03B15/00—Controlling
-
- 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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/14—Rotors having adjustable blades
-
- 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
- F03B3/14—Rotors having adjustable blades
- F03B3/145—Mechanisms for adjusting the blades
-
- 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
-
- 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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- 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 the intelligent hydraulic turbine systems for having chain linear tail water stream flow-increasing device, including bulb-type hydraulic generating set, it is characterized in that, it further include chain linear tail water stream flow-increasing device and tail water stream mode controller, the chain linear 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 chain linear runner unit with chain linear runner bucket, the chain linear runner bucket is axially gradually to be stretched according to chain line along chain linear runner boss, it is evenly arranged in space crossed distorted shape in the inner circumferential wall of chain linear runner boss, the tail water stream mode controller controls the blade angle β of bulb-type hydraulic generating set runner bucket respectively1Size, chain linear runner bucket blade angle β2Size and incude drive rod moving distance x size.The present invention can make full use of in bulb-type hydraulic generating set tail water stream a large amount of remaining kinetic energy to generate electricity.
Description
Technical field
The invention belongs to technical field of hydroelectric generation, more particularly to a kind of with chain linear tail water stream flow-increasing device
Intelligent 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 with chain linear tail water stream flow increasing dress in order to overcome the deficiencies of the prior art
The intelligent hydraulic turbine system set, chain linear tail water stream flow-increasing device of the invention can be according to upstream tubular-turbine generator
The tail water uninterrupted dynamic adjustment flow increasing effect of group discharge, and tubular water is controlled by tail water stream mode controller respectively
Turbine generator group and chain linear tail water stream flow-increasing device, to guarantee that chain linear tail water stream flow-increasing device can make full use of
The tail water stream energy of bulb-type hydraulic generating set discharge, can make external generator defeated again while improving waterpower utilization rate
Electric energy best in quality out.
A kind of intelligent hydraulic turbine system with chain linear tail water stream flow-increasing device proposed according to the present invention, including band
The bulb-type hydraulic generating set of draft tube, which is characterized in that further include chain linear tail water stream flow-increasing device and tail water stream shape
State controller, the chain linear tail water stream flow-increasing device by stress sensing unit, flow increasing gear unit, flow increasing releasing unit and
The successively parallel axial setting of chain linear runner unit with chain linear runner bucket；The chain linear tail water stream flow increasing dress
It installs in the outlet end of the draft tube of bulb-type hydraulic generating set, the tail water stream mode controller controls tubular respectively
The blade angle β of runner of hydro-generating unit blade1Size, chain linear runner bucket blade angle β2Size and
Incude the size of the moving distance x of drive rod, and gained deviation delta β1、Δβ2Result can be corrected with Δ x, thus real
The now dynamic adjustment of intelligent hydraulic turbine system；The chain linear runner unit includes pod influent side, chain linear runner
Blade, chain linear runner boss, pod, pod water outlet side, runner support, it is the chain linear runner bucket, chain
Linear runner boss is placed in pod, and the chain linear runner bucket is according to chain line along chain linear runner boss axis
To gradually stretching, it is evenly arranged in space crossed distorted shape in the inner circumferential wall of chain linear runner boss, it is axially different
The aerofoil section curve key point coordinate of distance is as shown in the table, and X, Y respectively represent the spatial value of key point, apart from wheel hub
Coordinate at leading edge axial direction 50cm is as shown in table 1:
Table 1
| Serial number | X | Y | Serial number | X | Y |
| 1 | 89.853 | -30.660 | 11 | 84.841 | -47.243 |
| 2 | 101.469 | -32.721 | 12 | 95.824 | -50.939 |
| 3 | 113.088 | -34.761 | 13 | 106.807 | -54.632 |
| 4 | 124.713 | -36.780 | 14 | 117.787 | -58.325 |
| 5 | 136.338 | -38.784 | 15 | 128.770 | -62.018 |
| 6 | 147.966 | -40.779 | 16 | 139.753 | -65.714 |
| 7 | 159.597 | -42.759 | 17 | 150.736 | -69.407 |
| 8 | 171.228 | -44.736 | 18 | 161.719 | -73.100 |
| 9 | 182.859 | -46.704 | 19 | 172.699 | -76.793 |
| 10 | 194.493 | -48.666 | 20 | 183.682 | -80.489 |
Two curvilinear equations after fitting are as follows:
Zuo Xian: y=-0.1719x-15.301；
Right string: y=-0.3363x-18.709；
The coordinate at leading edge axial direction 100cm apart from wheel hub is as shown in table 2:
Table 2
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=-0.0002x2-1.7246x-47.33；
Right string: y=-2.2716x-45.801；
The coordinate at leading edge axial direction 200cm apart from wheel hub is as shown in table 3:
Table 3
| Serial number | X | Y | Serial number | X | Y |
| 1 | 145.194 | 79.398 | 11 | 153.928 | 63.520 |
| 2 | 163.164 | 89.613 | 12 | 172.585 | 72.133 |
| 3 | 181.125 | 99.849 | 13 | 191.245 | 80.746 |
| 4 | 199.071 | 110.100 | 14 | 209.902 | 89.359 |
| 5 | 217.014 | 120.363 | 15 | 228.562 | 97.972 |
| 6 | 234.948 | 130.638 | 16 | 247.219 | 106.585 |
| 7 | 252.879 | 140.922 | 17 | 265.879 | 115.198 |
| 8 | 270.804 | 151.215 | 18 | 284.536 | 123.811 |
| 9 | 288.729 | 161.511 | 19 | 303.196 | 132.424 |
| 10 | 306.648 | 171.813 | 20 | 321.853 | 141.037 |
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=0.5725x-3.8268；
Right string: y=0.4616x-7.535.
The output power P of the intelligence hydraulic turbine system and the blade angle of bulb-type hydraulic generating set runner bucket
β1, chain linear runner bucket blade angle β2With 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 intelligent water
The flow of expander system；The control parameter of intelligent hydraulic turbine system is as shown in table 4:
Table 4
The stress sensing unit of the chain linear 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 chain linear runner boss
Be arranged executing agency, the push-plate by rotating bar respectively with bulb-type hydraulic generating set runner bucket, chain linear runner
The center of blade connects, and the rotating bar turns around bulb-type hydraulic generating set runner bucket and chain linear runner bucket center
Dynamic, the hydraulic controller piston rod is connect with push-plate, the stress tablet in the chain linear tail water stream flow-increasing device by
The control signal of signal processor controls.
Realization principle of the invention is: after intelligent hydraulic turbine system starting, water flow first passes around tubular-turbine generator
The water inlet flow channel of group bypasses vertical shaft and bulb, converges after forming velocity circulation at the guide vane of bulb-type hydraulic generating set
And entering runner, water impact bulb-type hydraulic generating set runner bucket passes through bulb-type hydraulic generating set runner bucket
The energy of water flow is converted into rotating mechanical energy, while driving generator amature rotation by being placed in the intracorporal combination bearing of light bulb
Turn, convert mechanical energy into electric energy, subsequent water flow enters the draft tube of bulb-type hydraulic generating set, big due to having in tail water
The remaining kinetic energy of amount, therefore water flow continues into chain linear tail water stream flow-increasing device；By stress tablet according to incoming flow stream
The size for measuring Q, passes to tail water stream mode controller for signal, signal processor is handled and fed back to signal, feedback
Signal to induction drive rod control, by induction drive rod successively band moving gear, rack gear, upper movable rod, lower movable 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 flow passes through
Pod influent side enters chain linear runner unit, does work to chain linear runner bucket, remaining kinetic energy is made to be converted to company
Then the rotating mechanical energy of locking wire shape runner passes torque to the external generator being attached thereto and generates electricity, to realize
Mechanical energy is again converted to electric energy, a large amount of remaining kinetic energies existing at bulb-type hydraulic generating set outlet of rotary wheel are filled
Divide and utilizes.In the intelligent hydraulic turbine system operational process, tail water stream mode controller passes through power according to the size of flow
Controller calculates the Optimum Leaves angle of real-time bulb-type hydraulic generating set and chain linear runner unit, and real-time
The blade angle β of bulb-type hydraulic generating set runner bucket1And the blade angle β of chain linear runner bucket2Compare, gained
Deviation delta β1With Δ β2Current signal, which is converted to, after PI correction link passes to hydraulic controller；Hydraulic controller by with reality
When current vs, control hydraulic controller piston rod is moved, and then drives push-plate movement, by rotating bar finally to passing through
The blade angle of streaming turbine-generator units and chain linear runner unit is adjusted, and makes bulb-type hydraulic generating set and company
Locking wire shape runner unit can keep peak efficiency under different flow, to guarantee entire intelligent hydraulic turbine system in difference
Waterpower utilization rate highest under operating condition, output power are maximum.
Its remarkable advantage is the present invention compared with prior art:
First, the intelligent hydraulic turbine system proposed by the present invention with chain linear tail water stream flow-increasing device is tubular
On the basis of turbine-generator units, chain linear tail water stream flow-increasing device and tail water stream mode controller are added, is efficiently solved
The remaining excessive problem of the generally existing tubular turbine tail water kinetic energy of the prior art, is bulb-type hydraulic generating set
Development provides new solution, has filled up the technological gap of this field.
Second, chain linear 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 chain linear runner list
Member is preferably provided safeguard using tail water energy and the excellent electric energy of output quality.
The structure of third, chain linear runner unit proposed by the present invention is simple, and size is small, easy to process, economic cost
It is low, and the runner section variation between chain linear runner bucket is uniform, is able to maintain higher efficiency, can be used as the prior art
Upgraded product.
4th, tail water stream mode controller proposed by the present invention can either adjust the chain linear tail water stream flow-increasing device of control
Flow increasing effect, and can be according to the difference of flow, dynamic adjusts bulb-type hydraulic generating set and chain linear runner unit
Blade angle, to keep water flow utilization rate highest of the intelligent hydraulic turbine system under different flow, output power maximum.
Detailed description of the invention
Fig. 1 is the overall structure of the intelligent hydraulic turbine system proposed by the present invention with chain linear tail water stream flow-increasing device
Schematic diagram.
Fig. 2 is structural schematic diagram when chain linear tail water stream flow-increasing device proposed by the present invention is in full closing state.
Fig. 3 is structural schematic diagram when chain linear tail water stream flow-increasing device proposed by the present invention is in semi-open state.
Fig. 4 is structural schematic diagram when chain linear tail water stream flow-increasing device proposed by the present invention is in full open state.
Fig. 5 is the schematic perspective view of chain linear runner proposed by the present invention.
Fig. 6 is the channel size labeling position schematic diagram of chain linear 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
It is seat 7, bulb-type hydraulic generating set runner bucket 8, runner 9, wheel hub 10, draft tube 11, tail water stream mode controller 12, chain
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, chain linear runner bucket 13-15,
Chain linear 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, chain linear runner bucket 13-15 minimum diameter D4, chain line
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, chain linear 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 intelligent hydraulic turbine system with chain linear tail water stream flow-increasing device, packets
Band 11 bulb-type hydraulic generating set of draft tube is included, further includes chain linear tail water stream flow-increasing device 13 and the control of tail water stream mode
Device 12, the chain linear tail water stream flow-increasing device 13 is by stress sensing unit, flow increasing gear unit, flow increasing releasing unit and band
The successively parallel axial setting of the chain linear runner unit of chain linear runner bucket 13-15；The chain linear tail water stream increases
The outlet end of the draft tube 11 of bulb-type hydraulic generating set is arranged in stream device 13, and the tail water stream mode controller 12 is distinguished
Control the blade angle β of bulb-type hydraulic generating set runner bucket 81Size, chain linear runner bucket 13-15 blade
Angle beta2Size and incude drive rod 13-2 moving distance x size, and gained deviation delta β1、Δβ2It can be right with Δ x
As a result it is corrected, to realize the dynamic adjustment of intelligent hydraulic turbine system；The chain linear runner unit includes pod
Influent side 13-14, chain linear runner bucket 13-15, chain linear runner boss 13-16, pod 13-17, pod go out
Water side 13-18, runner support 13-19, and the chain linear runner bucket 13-15, chain linear runner boss 13-16 are placed in and lead
In stream cover 13-17, the quantity of the chain linear runner bucket 13-15 is 2~5, the chain linear runner bucket 13-15
It is axially gradually to be stretched according to chain line along chain linear runner boss 13-16, is evenly arranged in space crossed distorted shape
In the inner circumferential wall of chain linear runner boss 13-16, the aerofoil section curve key point coordinate such as following table of axially different distance
Shown, X, Y respectively represent the spatial value of key point, and the coordinate at wheel hub leading edge axial direction 50cm is as shown in table 1:
Table 1
| Serial number | X | Y | Serial number | X | Y |
| 1 | 89.853 | -30.660 | 11 | 84.841 | -47.243 |
| 2 | 101.469 | -32.721 | 12 | 95.824 | -50.939 |
| 3 | 113.088 | -34.761 | 13 | 106.807 | -54.632 |
| 4 | 124.713 | -36.780 | 14 | 117.787 | -58.325 |
| 5 | 136.338 | -38.784 | 15 | 128.770 | -62.018 |
| 6 | 147.966 | -40.779 | 16 | 139.753 | -65.714 |
| 7 | 159.597 | -42.759 | 17 | 150.736 | -69.407 |
| 8 | 171.228 | -44.736 | 18 | 161.719 | -73.100 |
| 9 | 182.859 | -46.704 | 19 | 172.699 | -76.793 |
| 10 | 194.493 | -48.666 | 20 | 183.682 | -80.489 |
Two curvilinear equations after fitting are as follows:
Zuo Xian: y=-0.1719x-15.301；
Right string: y=-0.3363x-18.709；
The coordinate at leading edge axial direction 100cm apart from wheel hub is as shown in table 2:
Table 2
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=-0.0002x2-1.7246x-47.33；
Right string: y=-2.2716x-45.801；
The coordinate at leading edge axial direction 200cm apart from wheel hub is as shown in table 3:
Table 3
| Serial number | X | Y | Serial number | X | Y |
| 1 | 145.194 | 79.398 | 11 | 153.928 | 63.520 |
| 2 | 163.164 | 89.613 | 12 | 172.585 | 72.133 |
| 3 | 181.125 | 99.849 | 13 | 191.245 | 80.746 |
| 4 | 199.071 | 110.100 | 14 | 209.902 | 89.359 |
| 5 | 217.014 | 120.363 | 15 | 228.562 | 97.972 |
| 6 | 234.948 | 130.638 | 16 | 247.219 | 106.585 |
| 7 | 252.879 | 140.922 | 17 | 265.879 | 115.198 |
| 8 | 270.804 | 151.215 | 18 | 284.536 | 123.811 |
| 9 | 288.729 | 161.511 | 19 | 303.196 | 132.424 |
| 10 | 306.648 | 171.813 | 20 | 321.853 | 141.037 |
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=0.5725x-3.8268；
Right string: y=0.4616x-7.535；
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 chain linear 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 chain linear runner boss 13-16 of the present inventionhWith chain linear runner
The minimum diameter D of blade 13-154Ratio be 1.12~1.62；The maximum dimension D of the chain linear runner bucket 13-155
With the minimum diameter D of chain linear runner bucket 13-154Ratio be 2.12~2.64；In the import of the pod 13-17
Diameter D1With the minimum diameter D of chain linear runner bucket 13-154Ratio be 4.10~5.50；The pod 13-17 into
Mouth outer diameter D2With the minimum diameter D of chain linear runner bucket 13-154Ratio be 4.34~5.65；The pod 13-17
Outlet diameter D3With the minimum diameter D of chain linear 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 chain linear 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, chain linear 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 intelligent hydraulic turbine system
Dynamic adjustment；The output power P of intelligent hydraulic turbine system and the blade angle of bulb-type hydraulic generating set runner bucket 8
β1, chain linear runner bucket 13-15 blade angle β2And the relational expression of the moving distance x of induction drive rod 13-2 are as follows:In formula: Q is the flow by intelligent hydraulic turbine system；The intelligence hydraulic turbine
The control parameter of 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 chain linear 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 chain linear 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 chain linear 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 chain linear 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 implementation of intelligent hydraulic turbine system with chain linear tail water stream flow-increasing device proposed by the present invention
Under such as:
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 chain linear runner bucket 13-15 of the invention is 2；The minimum of chain linear runner bucket 13-15
Diameter D4For 32cm；The diameter D of chain linear runner boss 13-16hFor 48cm；The maximum of chain linear runner bucket 13-15 is straight
Diameter D5For 81cm；The import internal diameter D of pod 13-171For the import outer diameter D of 160cm, pod 13-172For 170cm, water conservancy diversion
Cover the outlet diameter D of 13-173For 192cm；The area a of stress tablet 13-1 is 20cm2；The diameter of push-plate 15 is 400cm；Turn
The long 152cm of the short side of lever 14, long side length 253cm；The length of hydraulic controller piston rod 16 is 353cm；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 2.0m3/
s、β1For 67.5 °, β2When being 55 °, the output power of intelligent hydraulic turbine system is 578.3kW.
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 chain linear runner bucket 13-15 of the invention is 3；The minimum of chain linear runner bucket 13-15
Diameter D4For 41cm；The diameter D of chain linear runner boss 13-16hFor 61.5cm；The maximum of chain linear runner bucket 13-15
Diameter D5For 102.5cm；The import internal diameter D of pod 13-171For the import outer diameter D of 205cm, pod 13-172For 215cm,
The outlet diameter D of pod 13-173For 246cm；The area a of stress tablet 13-1 is 25cm2；The diameter of push-plate 15 is
400cm；The long 158cm of the short side of rotating bar 14, long side length 258cm；The length of hydraulic controller piston rod 16 is 359cm；Induction
The length of drive rod 13-2 is 60cm；The number of teeth of gear 13-3 is 40；The length of flow increasing balancing spring 13-4 is 30cm；Flow
For 3.2m3/s、β1For 63.0 °, β2When being 49 °, the output power of intelligent hydraulic turbine system is 611.6kW.
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 chain linear runner bucket 13-15 of the invention is 5；The minimum of chain linear runner bucket 13-15
Diameter D4For 50cm；The diameter D of chain linear runner boss 13-16hFor 75cm；The maximum of chain linear 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 30cm2；The diameter of push-plate 15 is 400cm；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 60cm；The number of teeth of gear 13-3 is 40；The length of flow increasing balancing spring 13-4 is 30cm；Flow is 3.6m3/
s、β1For 61.5 °, β2When being 47 °, the output power of intelligent hydraulic turbine system is 616.4kW.
Implementation process of the invention are as follows: after intelligent hydraulic turbine system starting, water flow first passes around tubular-turbine generator
The water inlet flow channel 1 of group bypasses vertical shaft 2 and bulb 5, after forming velocity circulation at the guide vane 4 of bulb-type hydraulic generating set
Remittance is combined into runner 9, and water impact bulb-type hydraulic generating set runner bucket 8 is turned by bulb-type hydraulic generating set
The energy of water flow is converted to rotating mechanical energy by impeller blade 8, while the combination bearing 3 by being placed in bulb 5 drives power generation
The rotation of 6 rotor of machine, converts mechanical energy into electric energy, and subsequent water flow enters the draft tube 11 of bulb-type hydraulic generating set, by
There is a large amount of remaining kinetic energy in tail water, therefore water flow continues into chain linear tail water stream flow-increasing device 13；By stress sense
Answer plate 13-1 according to the size of inlet flow rate Q, signal passed into tail water stream mode controller 12, signal processor to signal into
Row is handled and is fed back, and the signal of feedback controls induction drive rod 13-2, by induction drive rod 13-2 successively with moving 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 13-
13 position is adjusted, and realizes the purpose for changing flow increasing effect in real time.When flow is larger, induction drive rod 13-2 is transported to the right
Dynamic, induction drive rod 13-2 band moving gear 13-3 is rotated clockwise, and rack gear 13-5 is moved to left, and passes through upper movable rod 13-7 and lower work
Dynamic connecting rod 13-6 makes the opening between flow control plate become larger；When the flow if reduced, flow increasing balancing spring 13-4 moves to left rack gear 13-5,
And then reducing the opening between flow control plate, flow increasing effect is consequently increased；Water flow passes through pod influent side 13-14 later
Into chain linear runner unit, does work to chain linear runner bucket 13-15, remaining kinetic energy is made to be converted to chain linear turn
Then the rotating mechanical energy of wheel passes torque to the external generator being attached thereto and generates electricity, to realize mechanical energy
It is again converted to electric energy, last water flow is flowed out by pod water outlet side 13-18.In the intelligent hydraulic turbine system operational process
In, tail water stream mode controller 12 calculates real-time tubular-turbine generator according to uninterrupted, by power controller
The Optimum Leaves angle of group and chain linear runner unit, the blade with real-time bulb-type hydraulic generating set runner bucket 8
Angle beta1And the blade angle β of chain linear runner bucket 13-152Compare, gained deviation delta β1With Δ β2After PI correction link
It is converted to current signal and passes to hydraulic controller 17；Hydraulic controller 17 by with real-time current vs, control hydraulic control
Device piston rod 16 processed is moved, and then push-plate 15 is driven to move, by rotating bar 14 finally to bulb-type hydraulic generating set
And the blade angle of chain linear runner unit is adjusted, to guarantee entire intelligent hydraulic turbine system under different operating conditions
Waterpower utilization rate highest, 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 proposed by the present invention a kind of with chain linear tail water stream flow increasing dress
The specific support for the intelligent hydraulic turbine system technical idea set, this does not limit the scope of protection of the present invention, all according to this
The technical idea proposed is invented, any equivalent variations or equivalent change done on the basis of the technical program are still fallen within
The range of technical solution of the present invention protection.
Claims (13)
1. the intelligent hydraulic turbine system of chain linear tail water stream flow-increasing device is had, including the through-flow type hydro-turbo with draft tube (11)
Generating set, which is characterized in that further include chain linear tail water stream flow-increasing device (13) and tail water stream mode controller (12), institute
Chain linear tail water stream flow-increasing device (13) is stated by stress sensing unit, flow increasing gear unit, flow increasing releasing unit and with chain
The successively parallel axial setting of the chain linear runner unit of linear runner bucket (13-15)；The chain linear tail water stream flow increasing
The outlet end of the draft tube (11) of bulb-type hydraulic generating set, the tail water stream mode controller (12) is arranged in device (13)
The blade angle β of bulb-type hydraulic generating set runner bucket (8) is controlled respectively1Size, chain linear runner bucket (13-
15) blade angle β2Size and incude drive rod (13-2) moving distance x size, and gained deviation delta β1、Δβ2
Result can be corrected with Δ x, to realize the dynamic adjustment of intelligent hydraulic turbine system；The chain linear runner unit
Including pod influent side (13-14), chain linear runner bucket (13-15), chain linear runner boss (13-16), water conservancy diversion
(13-17), pod water outlet side (13-18), runner support (13-19) are covered, the chain linear runner bucket (13-15) connects
Locking wire shape runner boss (13-16) is placed in pod (13-17), and the chain linear runner bucket (13-15) is according to even
Locking wire is axially gradually stretched along chain linear runner boss (13-16), is evenly arranged in chain line in space crossed distorted shape
In the inner circumferential wall of shape runner boss (13-16), the aerofoil section curve key point coordinate of axially different distance is as shown in the table,
X, Y respectively represents the spatial value of key point, and the coordinate at wheel hub leading edge axial direction 50cm is as shown in table 1:
Table 1
Two curvilinear equations after fitting are as follows:
Zuo Xian: y=-0.1719x-15.301；
Right string: y=-0.3363x-18.709；
The coordinate at leading edge axial direction 100cm apart from wheel hub is as shown in table 2:
Table 2
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=-0.0002x2-1.7246x-47.33；
Right string: y=-2.2716x-45.801；
The coordinate at leading edge axial direction 200cm apart from wheel hub is as shown in table 3:
Table 3
Two curvilinear equations after fitting are respectively as follows:
Zuo Xian: y=0.5725x-3.8268；
Right string: y=0.4616x-7.535.
2. the intelligent hydraulic turbine system according to claim 1 with chain linear tail water stream flow-increasing device, feature exist
In the output power P of intelligent hydraulic turbine system and the blade angle β of bulb-type hydraulic generating set runner bucket (8)1, it is chain
The blade angle β of linear runner bucket (13-15)2With the relational expression of the moving distance x of induction drive rod (13-2) are as follows:In formula: ρ is the density of water, and ρ value is 1000kg/m3, Q be pass through intelligent water
The flow of expander system；The control parameter of intelligent hydraulic turbine system is as shown in table 4:
Table 4
3. the intelligent hydraulic turbine system according to claim 2 with chain linear tail water stream flow-increasing device, feature exist
In the stress sensing unit of the chain linear tail water stream flow-increasing device (13) includes stress tablet (13-1) and induction driving
Bar (13-2), the flow increasing gear unit include gear (13-3), rack gear (13-5), flow increasing balancing spring (13-4), the increasing
Stream releasing unit include upper movable rod (13-7), lower movable rod (13-6), top sheave (13-8), lower sheave (13-9), on
Track (13-11), lower railway (13-12), upper flow control plate (13-10), lower flow control plate (13-13)；Stress tablet (the 13-
1) it is connect with induction drive rod (13-2), the induction drive rod (13-2) is fixedly connected with gear (13-3), the gear
(13-3) is engaged with rack gear (13-5), and the right end of the rack gear (13-5) is connect with the left end of flow increasing balancing spring (13-4), institute
The left end for stating rack gear (13-5) is connect with one end of one end of upper movable rod (13-7) and lower movable rod (13-6) respectively, institute
It states movable rod (13-7) to connect by top sheave (13-8) with upper flow control plate (13-10), the lower movable rod (13-6)
It is connect by lower sheave (13-9) with lower flow control plate (13-13), the upper flow control plate (13-10) is embedded in top sheave (13-8)
It gets on the right track in (13-11), the lower flow control plate (13-13) and lower sheave (13-9) are embedded in lower railway (13-12).
4. the intelligent hydraulic turbine system according to claim 3 with chain linear tail water stream flow-increasing device, feature exist
In the tail water stream mode controller (12) includes power controller, signal processor, hydraulic controller (17) and executes machine
Structure, the executing agency include push-plate (15) and rotating bar (14), the bulb-type hydraulic generating set wheel hub (10) and chain
Be respectively set executing agency in linear runner boss (13-16), the push-plate (15) by rotating bar (14) respectively with it is tubular
The center connection of runner of hydro-generating unit blade (8), chain linear runner bucket (13-15), the rotating bar (14) is around passing through
Streaming runner of hydro-generating unit blade (8) and chain linear runner bucket (13-15) center rotating, the hydraulic controller are living
Stopper rod (16) is connect with push-plate (15), and the stress tablet (13-1) of the chain linear tail water stream flow-increasing device (13) is by signal
The control signal of processor controls.
5. the intelligent hydraulic turbine system according to claim 4 with chain linear tail water stream flow-increasing device, feature exist
In the quantity of the chain linear runner bucket (13-15) is 2~5.
6. the intelligent hydraulic turbine system according to claim 5 with chain linear tail water stream flow-increasing device, feature exist
In the diameter D of the chain linear runner boss (13-16)hWith the minimum diameter D of chain linear runner bucket (13-15)4's
Ratio is 1.12~1.62.
7. the intelligent hydraulic turbine system according to claim 6 with chain linear tail water stream flow-increasing device, feature exist
In the maximum dimension D of the chain linear runner bucket (13-15)5With the minimum diameter of chain linear runner bucket (13-15)
D4Ratio be 2.12~2.64.
8. the intelligent hydraulic turbine system according to claim 7 with chain linear tail water stream flow-increasing device, feature exist
In the import internal diameter D of the pod (13-17)1With the minimum diameter D of chain linear runner bucket (13-15)4Ratio be
4.10~5.50.
9. the intelligent hydraulic turbine system according to claim 8 with chain linear tail water stream flow-increasing device, feature exist
In the import outer diameter D of the pod (13-17)2With the minimum diameter D of chain linear runner bucket (13-15)4Ratio be
4.34~5.65.
10. the intelligent hydraulic turbine system according to claim 9 with chain linear tail water stream flow-increasing device, feature exist
In the outlet diameter D of the pod (13-17)3With the minimum diameter D of chain linear runner bucket (13-15)4Ratio be
5.46~6.78.
11. the intelligent hydraulic turbine system according to claim 10 with chain linear tail water stream flow-increasing device, feature
It is, the area a of the stress tablet (13-1) meets relational expression:In formula: A be upper flow control plate (13-10) or
Area, the Q of lower flow control plate (13-13)0When flow, F when for rated power are rated power stress tablet (13-1) by
Power.
12. the intelligent hydraulic turbine system according to claim 11 with chain linear tail water stream flow-increasing device, feature
It is, the length of induction drive rod (13-2) is 50~90cm, and the number of teeth of the gear (13-3) is 35~55, described
30~90cm of length of rack gear (13-5), the length of the flow increasing balancing spring (13-4) are 20~35cm.
13. the intelligent hydraulic turbine system according to claim 12 with chain linear tail water stream flow-increasing device, feature
It is, the rotating bar (14) is connected by screw bolts with push-plate (15), and the quantity of bolt is 3~6；The rotating bar (14)
Structure is right-angle structure, the quantity of the rotating bar (14) respectively with bulb-type hydraulic generating set runner bucket (8) and chain
The quantity of linear runner bucket (13-15) is equal.
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Cited By (1)
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Application publication date: 20190426 |