CN107524557A - A kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner - Google Patents
A kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner Download PDFInfo
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- CN107524557A CN107524557A CN201710881025.0A CN201710881025A CN107524557A CN 107524557 A CN107524557 A CN 107524557A CN 201710881025 A CN201710881025 A CN 201710881025A CN 107524557 A CN107524557 A CN 107524557A
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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
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
- F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
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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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
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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
- F05B2250/00—Geometry
- F05B2250/10—Geometry two-dimensional
- F05B2250/15—Geometry two-dimensional spiral
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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
- F05B2270/602—Control system actuates through electrical 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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- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention relates to a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner, including kuppe, the wheel hub of fixed setting on the rotating shaft, the basic impeller being fixedly installed on wheel hub, it is characterized in that, also include the support shaft of real-time, tunable kuppe corner, the energization runner of hyperbolic conchoid spiral vane with radius variable, the hyperbolic conchoid spiral vane is according to axially gradually stretching of the helix of hyperbolic conchoid along rotary shaft, in space crossed distorted shape and it is uniformly set in the inner circumferential wall of rotary shaft, the hyperbolic conchoid spiral vane is on rotary shaft periphery, X represents the space abscissa value of key point on the Curve of wing of hyperbolic conchoid spiral vane section, Y represents the space ordinate value of key point on the Curve of wing of hyperbolic conchoid spiral vane section.The structure of the present invention is simple, efficiency high, can be not only used for Ocean Tidal Current Energy generating, can also generate electricity use under the conditions of the small marine tidal-current energies such as mountain area, mountain spring and dyke stream.
Description
Technical field
The invention belongs to fluid machinery and hydroelectric project equipment technical field, is led more particularly to one kind based on real-time, tunable
Flow the multistage tidal current energy water turbine of cover corner.
Background technology
Countries in the world today has been placed on hydroelectric resource development the preferential position of energy development.China's hydraulic power potentials total amount is very rich
Richness, only not middle and high head resource, and 0.8~1.0 hundred million kilowatts of low water head resource (containing marine tidal-current energy) is there is also about, exploitation profit
Marine energy is particularly developed with new energy and is generated electricity has great development potentiality.It is to rely on tide stream that energy by ocean current, which generates electricity,
Impulsive force makes the hydraulic turbine rotate at a high speed, then drives electrical power generators, it is not necessary to create initial pressure compared with high water head, only rely on
The flow velocity of tide stream can be achieved with generating electricity, and its economic value is very notable.
One of turbine impeller part the most key as tide stream generating set, the performance of impeller directly affect whole
The performance of individual unit, its manufacturing cost have also accounted for 20% or so of whole generating set.Traditional humble head hydraulic turbine
Impeller blade typically distorts tubular blade using asymmetric, and extra large marine tidal-current energy water turbine uses for reference fan blade mostly, and two
Person's applicable elements and range of operation are different, and blade wheel structure is complicated, and manufacturing cost is higher, and operational efficiency is relatively low.
Chinese patent application 20131049613.9 discloses a kind of " hydraulic turbine leaf of the energy by ocean current generating with kuppe
Wheel ", the program include rotating shaft and wheel hub and the blade being fixed on wheel hub, and the rotating shaft, wheel hub and blade are put
In in blade wheel chamber, blade wheel chamber both ends are respectively influent side and water outlet side, and current flow to water outlet side vertically from influent side, and wheel hub is adopted
With spheric, facilitate blade is installed on fixation, so as to improve the acting ability of blade.But the program also has the following disadvantages：
First, the structure of kuppe is simple, it is impossible to adjusts the angle of attack of kuppe in real time according to inflow angle, therefore can not play preferably
Cumulative action, directly affect economic performance；Second, belonging to the single-stage energy by ocean current hydraulic turbine, generated electricity using energy by ocean current less efficient.
Chinese patent application 201310496522.0, which discloses a kind of energy by ocean current and generated electricity, has the hydraulic turbine of kuppe two-way
Impeller, including rotating shaft in blade wheel chamber and wheel hub and it is fixed on " S " type leaf that quantity on wheel hub is 5~7
Piece；Blade wheel chamber both sides are respectively influent side and water outlet side；When forward direction generates electricity, current flow to vertically by kuppe from influent side
Water outlet side, during reverse power generation, current are then axially to flow to influent side by water outlet side.Although the program is in the ocean current of two-way flow
Under, ocean current kinetic energy can be efficiently converted, but also have the following disadvantages：First, belonging to the single-stage energy by ocean current hydraulic turbine, ocean current is utilized
It can generate electricity less efficient；Second, turbine blade design still falls within traditional design, aerofoil profile is excessively simple, it is impossible to profit well
With the water energy for flowing through runner；Third, the angle of attack design of kuppe is limited, and kuppe can not real-time, tunable.
Chinese patent application 20121034270.9 discloses " band guide cover type elliptical orbit vertical shaft tidal hydraulic turbine hair
Group of motors, the device include kuppe, rail brackets, oval guide rail, linear bearing, leading arm, prismatic blade etc..Although using leading
Stream cover improves the cumulative effect to marine tidal-current energy, but also has the following disadvantages：First, its vertical shaft blade uses single elliptical blade
Design, it is impossible to which efficient power output is provided；Second, belong to the single-stage energy by ocean current hydraulic turbine, using the efficiency that energy by ocean current generates electricity compared with
It is low.
In summary, how to overcome the shortcomings of to turn into current fluid machinery and hydroelectric project equipment present in prior art
One of emphasis problem urgently to be resolved hurrily in technical field.
The content of the invention
The purpose of the present invention be provided for overcome the deficiencies in the prior art it is a kind of based on real-time, tunable kuppe corner
Multistage tidal current energy water turbine, structure of the invention is simple, efficiency high, can be not only used for the hydraulic turbine of Ocean Tidal Current Energy generating, also may be used
Generate electricity and use under the conditions of the small marine tidal-current energies such as mountain area, Plain, mountain spring and dyke stream.
According to a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner proposed by the present invention, including water conservancy diversion
Cover, fixed setting wheel hub on the rotating shaft, the basic impeller being fixedly installed on wheel hub, the rotary shaft, wheel hub and basis
Impeller may be contained within kuppe, it is characterised in that support shaft also including real-time, tunable kuppe corner, with radius variable
The energization runner of hyperbolic conchoid spiral vane, the energization runner are located at the port of export of kuppe, the hyperbolic conchoid spiral
Shape blade is according to axially gradually stretching of the helix of hyperbolic conchoid along rotary shaft, is divided in space crossed distorted shape and uniformly
Cloth is arranged in the inner circumferential wall of rotary shaft, each section of the hyperbolic conchoid spiral vane of the surfaces of revolution centered on the rotary shaft
The intersection point in face is that origin establishes coordinate system, and the hyperbolic conchoid spiral vane is on rotary shaft periphery, under axially different distance
Section Curve of wing on the coordinate of key point of radius maximum represent as follows, hyperbolic conchoid spiral shape is represented with X
The space abscissa value of key point on the section Curve of wing of blade, the section wing of hyperbolic conchoid spiral vane is represented with Y
The space ordinate value of key point on type curve, the section aerofoil profile of hyperbolic conchoid spiral vane is apart from the leading edge axial direction of wheel hub
Parameter at 102cm referring to table 1,
Table 1：
| Sequence number | X | Y | Sequence number | X | Y |
| 1 | -11.6497 | -8.4642 | 7 | -10.5696 | -10.1952 |
| 2 | -12.9441 | -9.4046 | 8 | -11.8313 | -11.2449 |
| 3 | -15.533 | -11.2855 | 9 | -14.3449 | -13.3561 |
| 4 | -18.1219 | -13.1664 | 10 | -16.8479 | -15.48 |
| 5 | -20.7108 | -15.0473 | 11 | -19.3428 | -17.6133 |
| 6 | -23.2996 | -16.9282 | 12 | -21.8319 | -19.7534 |
Two curvilinear equations after fitting are respectively：
The left string of hyperbolic conchoid spiral vane：Y=-0.0001x3-0.0009x2+0.7187x-0.0273；
The right string of hyperbolic conchoid spiral vane：Y=-0.0038x2+0.7609x-1.7670；
Parameter apart from the leading edge axial direction of wheel hub at 132cm referring to table 2,
Table 2：
| Sequence number | X | Y | Sequence number | X | Y |
| 1 | -49.9814 | 29.3239 | 7 | -46.5993 | 33.8564 |
| 2 | -55.5149 | 32.6196 | 8 | -51.777 | 37.6182 |
| 3 | -61.0502 | 35.9122 | 9 | -56.9547 | 41.38 |
| 4 | -66.587 | 39.2024 | 10 | -62.1324 | 45.1418 |
| 5 | -77.6637 | 45.7775 | 11 | -72.4879 | 52.6655 |
| 6 | -83.203 | 49.0634 | 12 | -77.6656 | 56.4273 |
Two curvilinear equations after fitting are respectively：
The left string of hyperbolic conchoid spiral vane：Y=-0.0002x2-0.6118x-0.8041；
The right string of hyperbolic conchoid spiral vane：Y=-0.7267x+0.0004；
The both ends of the kuppe are respectively influent side and water outlet side, current from the influent side flow to vertically it is described go out
Water side；The basic impeller includes 3 pieces of blades in distorted shape, the lower end of kuppe and the branch of real-time, tunable kuppe corner
Support axle is fixedly connected, and the middle part of the support shaft is provided with the hydraulic swivel head bearing for being used for controlling kuppe corner；The rotary shaft
Diameter DhWith the diameter D of basic impeller0Ratio be 0.21~0.28, the interlude diameter D of kuppe1With basic impeller
Diameter D0Ratio be 1.05~1.13, the diameter D of the influent side of kuppe2With the diameter D of basic impeller0Ratio be 1.20
~1.27, the diameter D of the water outlet side of kuppe3With the diameter D of basic impeller0Ratio be 1.68~1.75；The leaf of basic impeller
Piece is interlocked with rotary shaft and rotated by the impact of current.
The present invention realization principle be：The present invention is in application process, when current flow into marine tidal-current energy from kuppe water inlet
After the hydraulic turbine, basic runner and energization runner are done work successively, rotated after external force suffered by runner, and then drives main shaft rotation,
Then pass torque to the generating set being attached thereto to generate electricity, marine tidal-current energy is converted into electric energy.Wherein it is in hyperbolic conchoid spiral
The spiral vane of wire shaped can be arranged to different pitch according to tidal current speed difference and adjust spatial warping degree, greatly protect
The stability of energization runner rotation is demonstrate,proved；After water outflow energization runner, export and flow out from kuppe.Because energization runner can incite somebody to action
The kinetic energy for flowing out the current of basic runner is again converted into the rotating mechanical energy of runner, can multiple energy so as to solve water well
The problem of conversion is measured, the power output of tidal current energy water turbine is improved, to strengthen the efficiency of tidal current energy water turbine.Meanwhile this hair
The hyperbolic conchoid spiral vane at bright hydraulic turbine rear is radially possessing variable cross-section function, and it uses the flexible dress of metal hinge
Put so that blade radius is variable, so that kuppe exit flow can adjust, further improve the regulation energy of the hydraulic turbine
Power.The kuppe of the multistage tidal current energy water turbine of the present invention is using the horn shape design that import is small and outlet is big, it is possible to increase
The cumulative action of marine tidal-current energy, the power output of tidal current energy water turbine is improved, to strengthen the efficiency of tidal current energy water turbine.It is simultaneously
Stream direction is met in regulation in real time, present invention employs for adjusting support shaft and the bearing device of kuppe corner to adapt to sea
The minor variations at ocean current incoming angle, enable multistage tidal current energy water turbine overall work state to reach the peak of efficiency.
Its remarkable advantage is the present invention compared with prior art：
First, a kind of multistage tidal current energy water turbine with the adjustable kuppe of corner of the invention, its basic impeller uses 3 pieces
In the blade of distorted shape, because the aerofoil profile of the blade gradually increases among blade to blade root and leaf margin, therefore can produce
Larger blade moment of torsion, so as to improve the output of basic impeller, while basic impeller overall structure is simple, from processing and manufacturing to peace
Dress is quite convenient to.
Second, a kind of multistage tidal current energy water turbine with the adjustable kuppe of corner of the invention, it is additionally included in basic runner
Marine tidal-current energy sets up energization runner on the basis of utilizing so that in the case of identical marine tidal-current energy, multistage marine tidal-current energy water of the invention
Turbine substantially increases on the basis of existing basic runner marine tidal-current energy conversion ratio, energization significant effect, so as to improve multistage
The generated output of tidal current energy water turbine.
3rd, hyperbolic conchoid spiral vane of the invention is in hyperbolic conchoid shape, to be drawn along the axial gradual change of rotary shaft
Stretch to form spatial warping shape and be uniformly set on the periphery of rotary shaft and be uniform speed rotation, greatly reduce waterpower and rub
Sidewipe collision, current are reduced after basic runner, the energy loss of the current reused, so as to improve multistage marine tidal-current energy
The effect of hydraulic turbine capacitation.
4th, a kind of multistage tidal current energy water turbine with the adjustable kuppe of corner of the invention, its kuppe uses import
Horn shape design small and that outlet is big, it is possible to increase the cumulative action of marine tidal-current energy, not only improve and flow through multistage marine tidal-current energy water wheels
The tidal current speed of machine, and improve the effect that becomes a mandarin, smooth water flow, ensure the stability that complete machine is run；Especially by using tune
The support shaft and bearing device of kuppe corner are saved, in favor of adapting to the minor variations at trend incoming angle, makes multistage trend
Energy hydraulic turbine overall work is in best efficiency point.
5th, a kind of multistage tidal current energy water turbine with the adjustable kuppe of corner of the invention, it can adapt to marine tidal-current energy water
The characteristics of stream, electrical power generators are driven in flow rate of water flow 1m/s above can, can both ensure low flow velocity self-starting, it is also applicable
It can be converted in 0.2m-1.5m micro head current water.
Brief description of the drawings
Fig. 1 is the schematic diagram of each part dimension relation of basic impeller of the present invention.
Fig. 2 is the dimensional structure diagram of the basic impeller blade of the present invention.
Fig. 3 is the top view of the basic impeller blade of the present invention.
Fig. 4 is the left view of the basic impeller blade of the present invention.
Fig. 5 is the front view of the basic impeller blade of the present invention.
Fig. 6 is the dimensional structure diagram of the hyperbolic conchoid spiral vane of the present invention.
Fig. 7 is the structural representation of the hyperbolic conchoid of the hyperbolic conchoid spiral vane energization runner bucket of the present invention.
Fig. 8 is the dimensional structure diagram of the multistage tidal current energy water turbine runner of the present invention.
Fig. 9 is the section molded line for the hyperbolic conchoid spiral vane that the present invention gathers at the leading edge axial direction 102cm of wheel hub
Schematic diagram.
Figure 10 is the section molded line for the hyperbolic conchoid spiral vane that the present invention gathers at the leading edge axial direction 132cm of wheel hub
Schematic diagram.
Explanation is numbered in figure：Kuppe 1, rotary shaft 2, wheel hub 3, blade 4, the influent side 5 of basic impeller, basic impeller
Water outlet side 6, support shaft 7, hydraulic swivel head bearing 8, hyperbolic conchoid spiral vane 9, the diameter D of basic impeller0, kuppe 1
Import internal diameter D1, kuppe 1 import outer diameter D2, kuppe 1 outlet diameter D3, wheel hub 3 diameter Dh, wheel hub 3 length L0、
The middle segment length L of kuppe 11, kuppe 1 entrance length L2, kuppe 1 exit length L3, support shaft 7 it is straight
Footpath Dp, support shaft 7 front end to kuppe 1 entrance section distance L4, hydraulic swivel head bearing 8 to the bottom of kuppe 1 distance
H1, hydraulic swivel head bearing 8 height Hp, hyperbolic conchoid spiral vane 9 blade when being in radius minimum state maximum radius
Rmin, blade when being in radius maximum rating of hyperbolic conchoid spiral vane 9 maximum radius Rmax。
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1：
With reference to Fig. 1 to Figure 10, a kind of multistage marine tidal-current energy water wheels based on real-time, tunable kuppe corner proposed by the present invention
Machine, including kuppe 1, the wheel hub 3 being fixedly installed in rotary shaft 2, the basic impeller that is fixedly installed on wheel hub 3, described turn
Moving axis 2, wheel hub 3 and basic impeller may be contained within kuppe 1, wherein：Also include the support shaft of the corner of real-time, tunable kuppe 1
7th, the energization runner of the hyperbolic conchoid spiral vane 9 with radius variable, the energization runner are located at the port of export of kuppe 1,
The hyperbolic conchoid spiral vane 9 is according to axially gradually stretching of the helix of hyperbolic conchoid along rotary shaft 2, is handed in space
Fork distorted shape is simultaneously uniformly set in the inner circumferential wall of rotary shaft 2, the hyperbolic of the surfaces of revolution centered on the rotary shaft 2
The intersection point in each section of flight auger shape blade 9 is that origin establishes coordinate system, and the hyperbolic conchoid spiral vane 9 is in rotary shaft
On 2 peripheries, the coordinate of the key point of radius maximum represents as follows on the axially different section Curve of wing under,
The space abscissa value of the key point on the section Curve of wing of hyperbolic conchoid spiral vane 9 is represented with X, hyperbolic is represented with Y
The space ordinate value of key point on the section Curve of wing of flight auger shape blade 9, hyperbolic conchoid spiral vane 9 are cut
Parameter of the face aerofoil profile apart from the leading edge axial direction of wheel hub 3 at 102cm referring to table 1,
Table 1：
| Sequence number | X | Y | Sequence number | X | Y |
| 1 | -11.6497 | -8.4642 | 7 | -10.5696 | -10.1952 |
| 2 | -12.9441 | -9.4046 | 8 | -11.8313 | -11.2449 |
| 3 | -15.533 | -11.2855 | 9 | -14.3449 | -13.3561 |
| 4 | -18.1219 | -13.1664 | 10 | -16.8479 | -15.48 |
| 5 | -20.7108 | -15.0473 | 11 | -19.3428 | -17.6133 |
| 6 | -23.2996 | -16.9282 | 12 | -21.8319 | -19.7534 |
Two curvilinear equations after fitting are respectively：
The left string of hyperbolic conchoid spiral vane 9：Y=-0.0001x3-0.0009x2+0.7187x-0.0273；
The right string of hyperbolic conchoid spiral vane 9：Y=-0.0038x2+0.7609x-1.7670；
Parameter apart from the leading edge axial direction of wheel hub at 132cm referring to table 2,
Table 2：
Two curvilinear equations after fitting are respectively：
The left string of hyperbolic conchoid spiral vane 9：Y=-0.0002x2-0.6118x-0.8041；
The right string of hyperbolic conchoid spiral vane 9：Y=-0.7267x+0.0004；
The both ends of the kuppe 1 are respectively influent side 5 and water outlet side 6, and current flow to institute vertically from the influent side 5
State water outlet side 6；The basic impeller includes 3 pieces of blades 4 in distorted shape, lower end and the real-time, tunable kuppe 1 of kuppe 1
The support shaft 7 of corner is fixedly connected, and the middle part of the support shaft 7 is provided with the hydraulic swivel head bearing for being used for controlling the corner of kuppe 1
8；The diameter D of the rotary shaft 2hWith the diameter D of basic impeller0Ratio be 0.21~0.28, the interlude diameter of kuppe 1
D1With the diameter D of basic impeller0Ratio be 1.05~1.13, the diameter D of the influent side 5 of kuppe 12It is straight with basic impeller
Footpath D0Ratio be 1.20~1.27, the diameter D of the water outlet side 6 of kuppe 13With the diameter D of basic impeller0Ratio be 1.68
~1.75；The blade 4 of basic impeller is interlocked with rotary shaft 2 and rotated by the impact of current.
Embodiment 2：
With reference to Fig. 2 to Fig. 5, the parameter of the established angle in each section of the blade 4 of the present invention in distorted shape is such as
Shown in table 3, the parameter of the chord length in each section of the blade 4 in distorted shape is as shown in table 4,
Table 3：
| Section sequence number | Established angle (°) | Section sequence number | Established angle (°) |
| 1002 | 40.14 | 1012 | 20.29 |
| 1003 | 38.23 | 1013 | 18.67 |
| 1005 | 35.27 | 1015 | 15.63 |
| 1006 | 32.69 | 1016 | 14.13 |
| 1007 | 30.23 | 1017 | 12.58 |
| 1008 | 27.94 | 1018 | 10.86 |
| 1009 | 25.81 | 1019 | 8.66 |
| 1010 | 23.84 | 1020 | 5.92 |
It is fitted from blade root to blade tip established angle with section number for 6 powers, established angle fit equation is：
Y=-9.21 × 10-7x6+8.33×10-5x5-3.71×10-3x4+8.39×10-2x3-0.899x2+2.06x+
38.86；
Table 4：
It is fitted in the blade 4 of distorted shape from blade root to the chord length of blade tip blade and section number for 7 powers, chord length fitting
Equation is：
Y=-9.60 × 10-8x7+6.85×10-6x6-1.99×10-4x5+3.07×10-3x4-2.64×10-2x3+1.21
×10-1x2-2.18×10-1x+0.37。
Embodiment 3：
With reference to Fig. 1, the spherical projection of shape of wheel hub 3 of the present invention, the length L of wheel hub 30With in kuppe 1
Between segment length L1Ratio be 0.29~0.36, the entrance length L of kuppe 12With the middle segment length L of kuppe 11Ratio
It is worth for 0.08~0.15, the exit length L of kuppe 13With the middle segment length L of kuppe 11Ratio be 0.51~0.58,
The diameter Dp of the support shaft 7 and total length (L of kuppe 11+L2+L3) ratio be 0.2~0.3, the center of support shaft 7 to water conservancy diversion
Front end distance (the L of cover 14+ 0.5Dp) with the total length (L of kuppe 11+L2+L3) ratio be 0.45~0.65, hydraulic swivel head
Bearing 8 to the bottom of kuppe 1 distance H1Ratio with the diameter Dp of support shaft 7 is 1.2~2.6, the height of hydraulic swivel head bearing 8
The ratio for spending Hp and the diameter Dp of support shaft 7 is 0.15-0.35；When direction of flow is not orthogonal to the entrance of influent side 5 of kuppe 1
During plane, electric motor starting in support shaft 7, the corner of kuppe 1 is adjusted to optimal inflow angle by hydraulic swivel head bearing 8；Consider
The incoming change faint to structural stability and trend, the angle that hydraulic swivel head bearing 8 adjusts kuppe 1 are -8 degree to+8 degree.
Embodiment 4：
With reference to Fig. 1, each interface in the down-flowing incoming direction of kuppe 1 of the present invention is rectangle, each rectangle
Height keep it is constant, in the interface in down-flowing incoming direction, kuppe 1 is substantially symmetrical about its central axis with wheel hub 3；Kuppe 1 it is each
Top view cross section is equal, two sections straight line is transitioned into by streamlined to be tubaeform, middle.
The specific embodiment of the critical piece size of the further open present invention below in conjunction with the accompanying drawings.
Embodiment 5：
With reference to Fig. 1, the inlet diameter of kuppe 1 of the present invention is 302cm, basic runner diameter is 240cm, rotary shaft
A diameter of 50cm, a diameter of 270cm of interlude of kuppe 1, the exducer diameter of kuppe 1 is 238cm；Kuppe 1 enters
Mouth segment length is 22cm, middle segment length 144cm, exit length 84cm.The length of support shaft 7 is 50cm, when incoming side
When to the influent side plane of inlet angle with kuppe 1 being 85 degree, hydraulic swivel head bearing 8 adjusts the relative initial angle of kuppe 1
Spend the influent side plane of inlet for for 5 degree, making direction of flow perpendicular to kuppe 1.
Embodiment 6：
With reference to Fig. 1, the inlet diameter of kuppe 1 of the present invention is 453cm, a diameter of 356cm of basic runner, is rotated
A diameter of 75cm of axle 2, a diameter of 405cm of interlude of kuppe 1, the exducer diameter of kuppe 1 is 624cm；Kuppe 1
Entrance length be 33cm, middle segment length is 216cm, exit length 125cm；The length of support shaft 7 is 110cm,
When the influent side plane of inlet angle of direction of flow and kuppe 1 is 82 degree, hydraulic swivel head bearing 8 adjusts the phase of kuppe 1
It is 8 degree to initial angle, makes direction of flow perpendicular to the influent side plane of inlet of kuppe 1.
Experiment proves that a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner of the invention is in 1m/s
More than flow condition under can self-starting, and there is high efficiency.Relative to traditional generating of building a dam, with the tide of the present invention
Stream can water turbine, can not only conservation of nature environment, and be also greatly reduced the cost of generating set well,
Reach the purpose for efficiently utilizing marine tidal-current energy.
The explanation being not directed in the embodiment of the present invention belongs to technology well known in the art, refers to known technology
It is carried out.
The present invention achieves satisfied trial effect through validation trial.
Above embodiment and embodiment are to proposed by the present invention a kind of based on real-time, tunable kuppe corner
The specific support of multistage tidal current energy water turbine technological thought, it is impossible to protection scope of the present invention is limited with this, it is every according to this hair
The technological thought of bright proposition, any equivalent variations done on the basis of the technical program or equivalent change, still fall within this
The scope of inventive technique scheme protection.
Claims (4)
1. a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner, including kuppe (1), it is fixedly installed on and turns
Wheel hub (3) on moving axis (2), the basic impeller being fixedly installed on wheel hub (3), the rotary shaft (2), wheel hub (3) and basis
Impeller may be contained within kuppe (1), it is characterised in that support shaft (7), band also including real-time, tunable kuppe (1) corner
The energization runner of the hyperbolic conchoid spiral vane (9) of radius variable, the energization runner are located at the port of export of kuppe (1),
The hyperbolic conchoid spiral vane (9) is according to axially gradually stretching of the helix of hyperbolic conchoid along rotary shaft (2), in sky
Between intersect and distorted shape and be uniformly set in the inner circumferential wall of rotary shaft (2), rotated centered on the rotary shaft (2)
The intersection point in each section of the hyperbolic conchoid spiral vane (9) in face is that origin establishes coordinate system, the hyperbolic conchoid spiral shape leaf
Piece (9) is on rotary shaft (2) periphery, the coordinate of the key point of radius maximum on the axially different section Curve of wing under
Represent as follows, the horizontal seat in space of the key point on the section Curve of wing of hyperbolic conchoid spiral vane (9) is represented with X
Scale value, the space ordinate value of the key point on the section Curve of wing of hyperbolic conchoid spiral vane (9), hyperbolic are represented with Y
Parameter of the section aerofoil profile of flight auger shape blade (9) apart from the leading edge axial direction of wheel hub (3) at 102cm referring to table 1,
Table 1：
Two curvilinear equations after fitting are respectively：
The left string of hyperbolic conchoid spiral vane (9)：Y=-0.0001x3-0.0009x+0.7187x-0.0273；
The right string of hyperbolic conchoid spiral vane (9)：Y=-0.0038x2+0.7609x-1.7670；
Parameter apart from the leading edge axial direction of wheel hub at 132cm referring to table 2,
Table 2：
Two curvilinear equations after fitting are respectively：
The left string of hyperbolic conchoid spiral vane (9)：Y=-0.0002x2-0.6118x-0.8041；
The right string of hyperbolic conchoid spiral vane (9)：Y=-0.7267x+0.0004；
The both ends of the kuppe (1) are respectively influent side (5) and water outlet side (6), and current flow vertically from the influent side (5)
To the water outlet side (6)；The basic impeller include 3 pieces be in distorted shape blades (4), the lower end of kuppe (1) with real time
The support shaft (7) of adjustable kuppe (1) corner is fixedly connected, and the middle part of the support shaft (7), which is provided with, to be used to control kuppe (1)
The hydraulic swivel head bearing (8) of corner；The diameter D of the rotary shaft (2)hWith the diameter D of basic impeller0Ratio for 0.21~
0.28, the interlude diameter D of kuppe (1)1With the diameter D of basic impeller0Ratio be 1.05~1.13, kuppe (1) is entered
The diameter D of water side (5)2With the diameter D of basic impeller0Ratio be 1.20~1.27, the diameter of the water outlet side (6) of kuppe (1)
D3With the diameter D of basic impeller0Ratio be 1.68~1.75；The blade (4) of basic impeller by current impact and with rotation
Axle (2) interlocks rotation.
2. a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner according to claim 1, its feature
It is, the parameter of the established angle in each section of the blade (4) in distorted shape is as shown in table 3, and described is in distorted shape
Blade (4) each section chord length parameter it is as shown in table 4,
Table 3：
It is fitted from blade root to blade tip established angle with section number for 6 powers, established angle fit equation is：
Y=-9.21 × 10-7x6+8.33×10-5x5-3.71×10-3x4+8.39×10-2x3-0.899x2+2.06x+38.86；
Table 4：
It is fitted in chord length of the blade (4) of distorted shape from blade root to blade tip and section number for 7 powers, chord length fit equation
For：
Y=-9.60 × 10-8x7+6.85×10-6x6-1.99×10-4x5+3.07×10-3x4-2.64×10-2x3+1.21×10-1x2-2.18×10-1x+0.37。
3. a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner according to claim 2, its feature
It is, the spherical projection of shape of the wheel hub (3), the length L of wheel hub (3)0With the length L of the interlude of kuppe (1)1's
Ratio is 0.29~0.36, the length L of the inducer of kuppe (1)2With the length L of the interlude of kuppe (1)1Ratio be
0.08~0.15, the length L of the outlet section of kuppe (1)3With the length L of the interlude of kuppe (1)1Ratio for 0.51~
0.58, the diameter Dp of support shaft (7) and the total length (L of kuppe (1)1+L2+L3) ratio be 0.2~0.3, support shaft (7)
Center to kuppe (1) front end distance (L4+ 0.5Dp) with the total length (L of kuppe (1)1+L2+L3) ratio be 0.45
~0.65, the distance H of hydraulic swivel head bearing (8) to kuppe (1) bottom1With the diameter Dp of support shaft (7) ratio for 1.2~
2.6, the height Hp of hydraulic swivel head bearing (8) and the diameter Dp of support shaft (7) ratio are 0.15-0.35；When direction of flow not
During perpendicular to influent side (5) plane of inlet of kuppe (1), electric motor starting in support shaft (7), pass through hydraulic swivel head bearing (8)
The corner of kuppe (1) is adjusted, the angle of the corner is -8 degree to+8 degree.
4. a kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner according to claim 3, its feature
It is, each interface in the down-flowing incoming direction of the kuppe (1) is rectangle, and the height of each rectangle keeps constant, hangs down
In the interface of straight direction of flow, kuppe (1) is substantially symmetrical about its central axis with wheel hub (3)；Each top view cross section phase of kuppe (1)
Deng, two sections be tubaeform, interlude straight line is transitioned into by streamlined.
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| PCT/CN2017/115450 WO2019061841A1 (en) | 2017-09-26 | 2017-12-11 | Multi-stage tidal current energy water turbine based on real-time adjustable guide cover rotation angle |
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Also Published As
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| WO2019061841A1 (en) | 2019-04-04 |
| CN107524557B (en) | 2019-07-30 |
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