CN109854440A - A kind of flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device - Google Patents
A kind of flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device Download PDFInfo
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Abstract
本发明涉及一种带流线形尾水流增流装置的增流式智能水轮机系统，包括贯流式水轮发电机组，其特征在于，还包括流线形尾水流增流装置和尾水流状态控制器，所述流线形尾水流增流装置由受力感应单元、增流传动单元、增流释放单元和带流线形转轮叶片的流线形转轮单元依次平行轴向设置，所述流线形转轮叶片均匀布置在流线形转轮轮毂的周向内壁上，所述尾水流状态控制器分别控制贯流式水轮发电机组转轮叶片的叶片角度β1的大小、流线形转轮叶片的叶片角度β2的大小以及感应驱动杆的移动距离x的大小。本发明既能够使流线形尾水流增流装置充分利用贯流式水轮发电机组尾水流中大量的剩余动能，又能够使外部发电机输出品质优良的电能。
The invention relates to a flow-increasing intelligent hydraulic turbine system with a streamlined tailwater flow increasing device, including a tubular hydro-generator set, and is characterized in that it also includes a streamlined tailwater flow increasing device and a tailwater flow state control The streamlined tailwater flow increasing device consists of a force sensing unit, an increasing current transmission unit, an increasing current releasing unit, and a streamlined runner unit with streamlined runner blades, which are arranged in parallel and in the axial direction. The streamlined runner blades are evenly arranged on the circumferential inner wall of the streamlined runner hub, and the tailwater flow state controller respectively controls the size, streamline, and size of the blade angle β1 of the runner blades of the tubular hydro-generator set. The size of the blade angle β 2 of the shaped runner blade and the size of the moving distance x of the induction drive rod. The invention not only enables the streamlined tailwater flow increasing device to make full use of a large amount of residual kinetic energy in the tailwater flow of the tubular hydro-generator set, but also enables the external generator to output electric energy with good quality.
Description
Technical field
The invention belongs to technical field of hydroelectric generation, more particularly to a kind of flow increasing with streamlined tail water stream flow-increasing device
Formula 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
A kind of band streamlined tail water stream flow increasing dress is provided the purpose of the invention is to overcome the deficiencies in the prior art
The flow increasing formula intelligence hydraulic turbine system set, streamlined tail water stream flow-increasing device of the invention can be sent out according to upstream through-flow type hydro-turbo
The tail water uninterrupted dynamic adjustment flow increasing effect of motor group discharge, and through-flow is controlled by tail water stream mode controller respectively
Formula turbine-generator units and streamlined tail water stream flow-increasing device, to guarantee that streamlined 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 flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device proposed according to the present invention, including
Bulb-type hydraulic generating set with draft tube, which is characterized in that further include streamlined tail water stream flow-increasing device and tail water stream shape
State controller, the streamlined tail water stream flow-increasing device is by stress sensing unit, flow increasing gear unit, flow increasing releasing unit and band
The successively parallel axial setting of the streamlined runner unit of streamlined runner bucket；The streamlined tail water stream flow-increasing device setting exists
The outlet end of the draft tube of bulb-type hydraulic generating set, the tail water stream mode controller control through-flow type hydro-turbo power generation respectively
The blade angle β of unit runner bucket1Size, streamlined runner bucket blade angle β2Size and induction drive rod
Moving distance x size, and gained deviation delta β1、Δβ2Result can be corrected with Δ x, to realize flow increasing formula intelligence
The dynamic adjustment of energy hydraulic turbine system；The streamlined runner unit includes pod influent side, streamlined runner bucket, streamline
Shape runner boss, pod, pod water outlet side, runner support, the streamlined runner bucket, streamlined runner boss are placed in
In pod, the streamlined runner bucket is evenly arranged in the inner circumferential wall of streamlined runner boss, and the streamlined turns
The aerofoil section curve key point coordinate of impeller blade is as shown in table 1, and X, Y respectively represent the spatial value of key point:
Table 1
Two curvilinear equations after fitting are respectively as follows:
Y=-0.0977x2+369.95x-350212；
Y=0.205x2-782.16x+746006。
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 streamlined 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 2:
Table 2
The stress sensing unit of the streamlined tail water stream flow-increasing device includes stress tablet and incudes drive rod, described
Flow increasing gear unit includes gear, rack gear, flow increasing balancing spring, and the flow increasing releasing unit includes upper movable rod, lower activity
Connecting rod, top sheave, lower sheave, upper rail, lower railway, upper flow control plate, lower flow control plate；The stress tablet and induction drive rod
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 balance
The left end of spring connects, and the left end of the rack gear is connect with one end of one end of upper movable rod and lower movable rod respectively, institute
Movable rod to be stated to connect by top sheave with upper flow control plate, the lower movable rod is connect by lower sheave with lower flow control plate,
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, is set respectively in the bulb-type hydraulic generating set wheel hub and streamlined runner boss
Set executing agency, the push-plate by rotating bar respectively with bulb-type hydraulic generating set runner bucket, streamlined runner bucket
Center connection, the rotating bar is around bulb-type hydraulic generating set runner bucket and streamlined runner bucket center rotating, institute
It states hydraulic controller piston rod to connect with push-plate, the stress tablet in the streamlined tail water stream flow-increasing device is by signal processing
The control signal of device 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 streamlined tail water stream flow-increasing device；By stress tablet according to incoming flow
Signal is passed to tail water stream mode controller by the size of flow Q, and 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, it is lower activity even
Bar, 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
Enter streamlined runner unit by pod influent side, the linear runner bucket acting of convection current makes remaining kinetic energy be converted to stream
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, carries out to a large amount of remaining kinetic energies existing at bulb-type hydraulic generating set outlet of rotary wheel abundant
It utilizes.In the flow increasing formula intelligence hydraulic turbine system operational process, tail water stream mode controller passes through according to the size of flow
Power controller calculates the Optimum Leaves angle of real-time bulb-type hydraulic generating set and streamlined runner unit, and real-time
Bulb-type hydraulic generating set runner bucket blade angle β1And the blade angle β of streamlined 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 streamlined runner unit is adjusted, and makes bulb-type hydraulic generating set and streamline
Shape runner unit can keep peak efficiency under different flow, to guarantee entire flow increasing formula intelligence hydraulic turbine system not
With the waterpower utilization rate highest under operating condition, output power is maximum.
Its remarkable advantage is the present invention compared with prior art:
First, a kind of flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device proposed by the present invention be
On the basis of bulb-type hydraulic generating set, streamlined tail water stream flow-increasing device and tail water stream mode controller are added, effectively
It solves the problems, such as that the generally existing tubular turbine tail water kinetic energy of the prior art is remaining excessive, is tubular-turbine generator
The development of group provides new solution, has filled up the technological gap of this field.
Second, streamlined tail water stream flow-increasing device proposed by the present invention can be according to the size of upstream flowrate, adaptively
The position for adjusting two flow control plates makes it under different flows, generates corresponding flow increasing effect, more for streamlined runner unit
It is provided safeguard using tail water energy and the excellent electric energy of output quality well.
The structure of third, streamlined runner unit proposed by the present invention is simple, and size is small, and easy to process, economic cost is low,
And the friction loss between the streamlined edge and water flow of streamlined runner bucket is small, is able to maintain higher efficiency, can be used as existing
There is the upgraded product of technology.
4th, tail water stream mode controller proposed by the present invention can either adjust control streamlined tail water stream flow-increasing device
Flow increasing effect, and can be according to the difference of flow, dynamic adjusts the leaf of bulb-type hydraulic generating set and streamlined runner unit
Piece angle, to enable water flow utilization rate highest, output power maximum of the flow increasing formula intelligence hydraulic turbine system under different flow.
Detailed description of the invention
Fig. 1 is a kind of the whole of flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device proposed by the present invention
Body structural schematic diagram.
Fig. 2 is structural schematic diagram when streamlined tail water stream flow-increasing device proposed by the present invention is in full closing state.
Fig. 3 is structural schematic diagram when streamlined tail water stream flow-increasing device proposed by the present invention is in semi-open state.
Fig. 4 is structural schematic diagram when streamlined tail water stream flow-increasing device proposed by the present invention is in full open state.
Fig. 5 is the schematic perspective view of streamlined runner proposed by the present invention.
Fig. 6 is the channel size labeling position schematic diagram of streamlined 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, bulb-type hydraulic generating set runner bucket 8, runner 9, wheel hub 10, draft tube 11, tail water stream mode controller 12, streamline
Shape 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, tooth
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, lower control
Flowing plate 13-13, upper rail 13-11, lower railway 13-12, pod influent side 13-14, streamlined runner bucket 13-15, streamline
Shape runner boss 13-16, pod 13-17, pod water outlet side 13-18, runner support 13-19, rotating bar 14, push-plate 15,
Hydraulic controller piston rod 16, hydraulic controller 17, streamlined runner bucket 13-15 diameter D4, pod 13-17 import
Internal diameter D1, pod 13-17 import outer diameter D2, pod 13-17 outlet diameter D3, streamlined runner boss 13-16 it is straight
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 system with streamlined tail water stream flow-increasing device,
It further include streamlined tail water stream flow-increasing device 13 and the control of tail water stream mode including band 11 bulb-type hydraulic generating set of draft tube
Device 12, the streamlined tail water stream flow-increasing device 13 is by stress sensing unit, flow increasing gear unit, flow increasing releasing unit and with stream
The successively parallel axial setting of the streamlined runner unit of linear runner bucket 13-15；The streamlined tail water stream flow-increasing device 13
The outlet end of the draft tube 11 of bulb-type hydraulic generating set is set, and the tail water stream mode controller 12 controls through-flow respectively
The blade angle β of formula runner of hydro-generating unit blade 81Size, streamlined runner bucket 13-15 blade angle β2It is big
The size of small and induction drive rod 13-2 moving distance x, and gained deviation delta β1、Δβ2With Δ x school can be carried out to result
Just, to realize the dynamic adjustment of flow increasing formula intelligence hydraulic turbine system；The streamlined runner unit includes pod influent side
13-14, streamlined runner bucket 13-15, streamlined runner boss 13-16, pod 13-17, pod water outlet side 13-18,
Runner supports 13-19, and the streamlined runner bucket 13-15, streamlined runner boss 13-16 are placed in pod 13-17, institute
The quantity for stating streamlined runner bucket 13-15 is 2~5, and the streamlined runner bucket 13-15 is evenly arranged in streamlined and turns
In the inner circumferential wall for taking turns wheel hub 13-16, the aerofoil section curve key point coordinate such as table 1 of the streamlined runner bucket 13-15
Shown, X, Y respectively represent the spatial value of key point:
Table 1
Two curvilinear equations after fitting are respectively as follows:
Y=-0.0977x2+369.95x-350212；
Y=0.205x2-782.16x+746006；
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 streamlined tail water stream flow-increasing device of the present invention include by
Power tablet 13-1 and induction drive rod 13-2, the flow increasing gear unit includes gear 13-3, rack gear 13-5, flow increasing equilibrium bomb
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, get on the right track 13-11, lower railway 13-12, upper flow control plate 13-10, lower flow control plate 13-13；The face of the stress tablet 13-1
Product 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 under
Area, the Q of flow control plate 13-130The power that stress tablet 13-1 is subject to when flow, F when for rated power are rated power；Institute
It states stress tablet 13-1 to connect with induction drive rod 13-2, the length of the induction drive rod 13-2 is 50~90cm, described
Induction drive rod 13-2 is fixedly connected with gear 13-3, and the number of teeth of the gear 13-3 is 35~55, in the gear 13-3
The heart 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, the tooth
The right end of the length 30~90cm, the rack gear 13-5 of 13-5 are connect with the left end of flow increasing balancing spring 13-4, the flow increasing
The length of balancing 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 under
One end of 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, institute
It states lower movable rod 13-6 to 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 streamlined runner boss 13-16 of the present inventionhWith streamlined runner bucket
The diameter D of 13-154Ratio be 0.43~0.78；The import internal diameter D of the pod 13-171With streamlined runner bucket 13-
15 diameter D4Ratio be 1.25~1.50；The import outer diameter D of the pod 13-172With streamlined runner bucket 13-15
Diameter D4Ratio be 1.33~1.65；The outlet diameter D of the pod 13-173With streamlined runner bucket 13-15's
Diameter D4Ratio be 1.53~1.80.
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 streamlined tail water stream flow-increasing device (13) is by signal processing
The control signal of device controls, and the tail water stream mode controller 12 controls bulb-type hydraulic generating set runner bucket 8 respectively
Blade angle β1Size, streamlined 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, streamlined runner bucket 13-15 blade angle β2And the relationship of the moving distance x of induction drive rod 13-2
Formula are as follows:In formula: Q is the flow by flow increasing formula intelligence hydraulic turbine system；Institute
The control parameter for stating flow increasing formula intelligence hydraulic turbine system is as shown in table 2:
Table 2
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, divide in bulb-type hydraulic generating set wheel hub 10 and streamlined runner boss 13-16 of the present invention
Not She Zhi executing agency, the executing agency includes push-plate 15 and rotating bar 14, and the push-plate 15 is disc-shaped structure, described to push away
Disk 15 passes through the center with bulb-type hydraulic generating set runner bucket 8 and streamlined runner bucket 13-15 respectively of rotating bar 14
Connection, the rotating bar 14 be right-angle structure, the quantity of the rotating bar 14 respectively with bulb-type hydraulic generating set runner blade
The quantity of piece 8 and streamlined runner bucket 13-15 are equal, and the rotating bar 14 is around bulb-type hydraulic generating set runner bucket 8
And the center rotating of streamlined runner bucket 13-15, the rotating bar 14 are connected by screw bolts with push-plate 15, the quantity of bolt is
3~6, the connection of push-plate 15 of the hydraulic controller piston rod 16 and executing agency, the direction of motion and work of the push-plate 15
The direction of motion of stopper rod 22 is consistent.
A kind of application of flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device proposed by the present invention is real
Under applying for example:
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 streamlined runner bucket 13-15 of the invention is 2；The diameter D of streamlined runner bucket 13-154For
300cm；The diameter D of streamlined runner boss 13-16hFor 150cm；The import internal diameter D of pod 13-171For 390cm, pod
The import outer diameter D of 13-172For the outlet diameter D of 450cm, pod 13-173For 500cm；The area a of stress tablet 13-1
For 20cm2；The diameter of push-plate 15 is 400cm；The long 140cm of the short side of rotating bar 14, long side length 240cm；Hydraulic controller piston
The length of bar 16 is 340cm；The length for incuding drive rod 13-2 is 60cm；The number of teeth of gear 13-3 is 40；Flow increasing equilibrium bomb
The length of spring 13-4 is 25cm；Flow is 2.4m3/s、β1For 66.0 °, β2When being 53 °, flow increasing formula intelligence hydraulic turbine system it is defeated
Power is 592.5kW out.
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 streamlined runner bucket 13-15 of the invention is 3；The diameter D of streamlined runner bucket 13-154For
320cm；The diameter D of streamlined runner boss 13-16hFor 160cm；The import internal diameter D of pod 13-171For 416cm, pod
The import outer diameter D of 13-172For the outlet diameter D of 490cm, pod 13-173For 540cm；The area a of stress tablet 13-1
For 25cm2；The diameter of push-plate 15 is 400cm；The long 150cm of the short side of rotating bar 14, long side length 250cm；Hydraulic controller piston
The length of bar 16 is 350cm；The length for incuding drive rod 13-2 is 60cm；The number of teeth of gear 13-3 is 50；Flow increasing equilibrium bomb
The length of spring 13-4 is 30cm；Flow is 3.2m3/s、β1For 63.0 °, β2When being 49 °, flow increasing formula intelligence hydraulic turbine system it is defeated
Power is 611.6kW out.
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 streamlined runner bucket 13-15 of the invention is 5；The diameter D of streamlined runner bucket 13-154For
350cm；The diameter D of streamlined runner boss 13-16hFor 175cm；The import internal diameter D of pod 13-171For 455cm, pod
The import outer diameter D of 13-172For the outlet diameter D of 525cm, pod 13-173For 595cm；The area a of stress tablet 13-1
For 30cm2；The diameter of push-plate 15 is 410cm；The long 160cm of the short side of rotating bar 14, long side length 260cm；Hydraulic controller piston
The length of bar 16 is 360cm；The length for incuding drive rod 13-2 is 50cm；The number of teeth of gear 13-3 is 50；Flow increasing equilibrium bomb
The length of spring 13-4 is 35cm；Flow is 4m3/s、β1For 60 °, β2When being 45 °, the output work of flow increasing formula intelligence hydraulic turbine system
Rate is 618kW.
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 streamlined tail water stream flow-increasing device 13；By stress
Signal is passed to tail water stream mode controller 12, signal processor is to signal according to the size of inlet flow rate Q by tablet 13-1
It is handled and is fed back, the signal of feedback controls induction drive rod 13-2, by induction drive rod 13-2 successively with movable tooth
13-3, rack gear 13-5 and upper movable rod 13-7, lower movable rod 13-6 are taken turns, 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 streamlined runner unit, and the linear runner bucket 13-15 acting of convection current makes remaining kinetic energy be converted to streamlined and turns
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.It is transported in the flow increasing formula intelligence hydraulic turbine system
During row, tail water stream mode controller 12 calculates real-time through-flow type hydro-turbo according to uninterrupted, by power controller
The Optimum Leaves angle of generating set and streamlined runner unit, with real-time bulb-type hydraulic generating set runner bucket 8
Blade angle β1And the blade angle β of streamlined runner bucket 13-152Compare, gained deviation delta β1With Δ β2Through PI correction link
After be converted to current signal and pass to hydraulic controller 17；Hydraulic controller 17 by with real-time current vs, control it is hydraulic
Controller piston rod 16 is moved, and then push-plate 15 is driven to move, by rotating bar 14 finally to tubular-turbine generator
The blade angle of group and streamlined runner unit is adjusted, to guarantee entire flow increasing formula intelligence hydraulic turbine system in different works
Waterpower utilization rate highest under condition, 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 streamlined tail water stream flow-increasing device
The specific support of flow increasing formula intelligence hydraulic turbine system technical idea, this does not limit the scope of protection of the present invention, it is all according to
Technical idea proposed by the present invention, any equivalent variations or equivalent change done on the basis of the technical program, still belongs to
In the range of technical solution of the present invention protection.
Claims (12)
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Application publication date: 20190607 |