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CN107524557B - A kind of multistage tidal current energy water turbine based on real-time, tunable pod corner - Google Patents

A kind of multistage tidal current energy water turbine based on real-time, tunable pod corner Download PDF

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Publication number
CN107524557B
CN107524557B CN201710881025.0A CN201710881025A CN107524557B CN 107524557 B CN107524557 B CN 107524557B CN 201710881025 A CN201710881025 A CN 201710881025A CN 107524557 B CN107524557 B CN 107524557B
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pod
spiral vane
corner
diameter
wheel hub
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CN107524557A (en
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张玉全
郑源
李东阔
臧伟
杨春霞
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Hohai University HHU
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Hohai University HHU
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Priority to PCT/CN2017/115450 priority patent/WO2019061841A1/en
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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
    • 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
    • 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
    • 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
    • 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
    • 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 turbines based on real-time, tunable pod corner, including pod, the wheel hub of fixed setting on the rotating shaft, the basic impeller being fixed on wheel hub, it is characterized in that, it further include the support shaft of real-time, tunable pod corner, the energization runner of hyperbolic conchoid spiral vane with radius variable, the hyperbolic conchoid spiral vane is gradually to be stretched according to the helix of hyperbolic conchoid along the axial direction of rotation axis, in space crossed distorted shape and it is uniformly set in the inner circumferential wall of rotation axis, the hyperbolic conchoid spiral vane is on rotation axis 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.Structure of the invention is simple, high-efficient, can be not only used for Ocean Tidal Current Energy power generation, 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

A kind of multistage tidal current energy water turbine based on real-time, tunable pod corner
Technical field
The invention belongs to fluid machinery and hydroelectric project equipment technical fields, are led more particularly to one kind based on real-time, tunable Flow the multistage tidal current energy water turbine of cover corner.
Background technique
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 not only has middle and high head resource, but also there is also about 0.8~1.0 hundred million kilowatts of low water head resource (containing marine tidal-current energy), exploitation benefits Marine energy power generation is especially developed and used with new energy has great development potentiality.Energy by ocean current power generation is by tide stream Impact force makes hydraulic turbine high speed rotation, then drives electrical power generators, does not need 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 economic value is very significant.
The turbine impeller component one of the most key as tide stream generating set, the performance of impeller directly affects whole The performance of a unit, manufacturing cost have also accounted for 20% or so of entire generating set.Traditional humble head hydraulic turbine Impeller blade generally 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 lower.
Chinese patent application 20131049613.9 discloses a kind of " hydraulic turbine leaf of the energy by ocean current power generation with pod Wheel ", the program include shaft and wheel hub and the blade that is fixed on wheel hub, and the shaft, wheel hub and blade are set In in blade wheel chamber, blade wheel chamber both ends are respectively influent side and water outlet side, and water flow flows to water outlet side along axial direction from influent side, and wheel hub is adopted With spheric, facilitate blade is installed on fixation, to improve the acting ability of blade.But there is also following deficiencies for the program: First is that the structure of pod is simple, the angle of attack of pod cannot be adjusted in real time according to inflow angle, therefore cannot play preferable Cumulative action directly affects economic performance；Second is that belonging to the single-stage energy by ocean current hydraulic turbine, the efficiency to be generated electricity using energy by ocean current is lower.
It is two-way that Chinese patent application 201310496522.0 discloses a kind of hydraulic turbine of the energy by ocean current power generation with pod Impeller, including being mounted on the indoor shaft of impeller and wheel hub and being fixed on " S " type leaf that quantity is 5~7 on wheel hub Piece；Blade wheel chamber two sides are respectively influent side and water outlet side；When forward direction power generation, water flow is by pod from influent side along axial flow direction Water outlet side, when reverse power generation, water flow is 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 there is also following deficiencies: first is that belonging to the single-stage energy by ocean current hydraulic turbine, utilize ocean current The efficiency that can be generated electricity is lower；Second is that turbine blade design still falls within traditional design, aerofoil profile is too simple, cannot be sharp well With the water energy for flowing through runner；Third is that the angle of attack design of pod is limited, and pod can not real-time, tunable.
Chinese patent application 20121034270.9 discloses " band guide cover type elliptical orbit vertical shaft tidal hydraulic turbine hair Motor group, the device include pod, 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 there is also following deficiencies: first is that its vertical shaft blade is using single elliptical blade Design, cannot provide efficient output power；Second is that belong to the single-stage energy by ocean current hydraulic turbine, using energy by ocean current power generation efficiency compared with It is low.
Current fluid machinery and hydroelectric project equipment are had become in conclusion how to overcome the shortcomings of the prior art One of emphasis problem urgently to be resolved in technical field.
Summary of the invention
It is a kind of based on real-time, tunable pod corner the purpose of the present invention is in order to overcome the deficiencies of the prior art providing Multistage tidal current energy water turbine, structure of the invention is simple, high-efficient, can be not only used for the hydraulic turbine of Ocean Tidal Current Energy power generation, can also It generates electricity and uses under the conditions of the small marine tidal-current energies such as mountain area, Plain, mountain spring and dyke stream.
A kind of multistage tidal current energy water turbine based on real-time, tunable pod corner proposed according to the present invention, including water conservancy diversion Cover, basic impeller fixed setting wheel hub on the rotating shaft, be fixed on wheel hub, the rotation axis, wheel hub and basis Impeller is all set in pod, which is characterized in that further includes the support shaft of real-time, tunable pod corner, with radius variable The energization runner of hyperbolic conchoid spiral vane, the energization runner are located at the outlet end of pod, the hyperbolic conchoid spiral Shape blade is gradually to be stretched according to the helix of hyperbolic conchoid along the axial direction of rotation axis, is divided in space crossed distorted shape and uniformly Cloth is arranged in the inner circumferential wall of rotation axis, using the rotation axis as each section of the hyperbolic conchoid spiral vane of the center surfaces of revolution The intersection point in face is that origin establishes coordinate system, and the hyperbolic conchoid spiral vane is on rotation axis periphery, under axially different distance Section Curve of wing on the coordinate of key point of radius maximum indicate 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 represents the section wing of hyperbolic conchoid spiral vane with Y The space ordinate value of key point on type curve, leading edge of the section aerofoil profile of hyperbolic conchoid spiral vane apart from wheel hub are axial Parameter at 102cm referring to table 1,
Table 1:
Serial number X Y Serial 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 as follows:
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；
The parameter at leading edge axial direction 132cm apart from wheel hub referring to table 2,
Table 2:
Serial number X Y Serial 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 as follows:
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 pod are respectively influent side and water outlet side, and water flow is described out along axial flow direction from the influent side Water side；The basis impeller includes 3 pieces of blades in distorted shape, the lower end of pod and the branch of real-time, tunable pod corner Support axis is fixedly connected, and the middle part of the support shaft is equipped with the hydraulic swivel head bearing for controlling pod corner；The rotation axis Diameter DhWith the diameter D of basic impeller0Ratio be 0.21~0.28, the interlude diameter D of pod1With basic impeller Diameter D0Ratio be 1.05~1.13, the diameter D of the influent side of pod2With the diameter D of basic impeller0Ratio be 1.20 ~1.27, the diameter D of the water outlet side of pod3With the diameter D of basic impeller0Ratio be 1.68~1.75；The leaf of basic impeller Piece by water flow impact and with rotation axis interlock rotate.
Realization principle of the invention is: the present invention in application process, when water flow from pod water inlet flow into marine tidal-current energy It after the hydraulic turbine, successively does work to basic runner and energization runner, is rotated after external force suffered by runner, and then drive main shaft rotation, Then the generating set power generation being attached thereto is passed torque to, converts electric energy for marine tidal-current energy.It is wherein in hyperbolic conchoid spiral The spiral vane of wire shaped can be arranged to different screw 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 flows out energization runner, exports and flow out from pod.Since energization runner can incite somebody to action The kinetic energy for flowing out the water flow of basic runner is again converted into the rotating mechanical energy of runner, to well solve the multiple energy of water energy The problem for measuring conversion, improves the output power of tidal current energy water turbine, to enhance 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, uses the flexible dress of metal hinge It sets so that blade radius is variable, so that pod exit flow is adjustable, further improves the adjusting energy of the hydraulic turbine Power.The pod of multistage tidal current energy water turbine of the invention is small using import and exports big horn shape design, can be improved The cumulative action of marine tidal-current energy improves the output power of tidal current energy water turbine, to enhance the efficiency of tidal current energy water turbine.It is simultaneously In real time adjust meet stream direction, present invention employs for adjusting pod corner support shaft and bearing device to adapt to sea The minor change at ocean current incoming flow angle, enables multistage tidal current energy water turbine overall work state to reach the highest point 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 pod of corner of the invention, basic impeller uses 3 pieces It can be generated in the blade of distorted shape since the aerofoil profile of the blade is gradually increased among blade to blade root and leaf margin Biggish blade torque, so that the power output of basic impeller is improved, 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 pod of corner of the invention, further includes in basic runner Marine tidal-current energy adds energization runner on the basis of utilizing, so that in identical marine tidal-current energy, multistage marine tidal-current energy water of the invention Turbine obviously increases marine tidal-current energy conversion ratio on the basis of existing basic runner, energization significant effect, to improve multistage The generated output of tidal current energy water turbine.
Third, hyperbolic conchoid spiral vane of the invention are in hyperbolic conchoid shape, to draw along the axial gradual change of rotation axis It stretches to form spatial warping shape and be uniformly set on the periphery of rotation axis and is uniform speed rotation, greatly reduce waterpower and rub Sidewipe collision reduces water flow after basic runner, the energy loss of the water flow utilized again, 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 pod of corner of the invention, pod uses import Horn shape design small and that outlet is big, can be improved the cumulative action of marine tidal-current energy, not only improves 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 guarantees the stability of complete machine operation；Especially by using tune The support shaft and bearing device of pod corner are saved, in favor of adapting to the minor change at trend incoming flow 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 pod of corner of the invention can adapt to marine tidal-current energy water The characteristics of stream, more than flow rate of water flow 1m/s can driven generator power generation, both can guarantee low flow velocity self-starting, it is also applicable It is converted in the micro head water flow water energy of 0.2m-1.5m.
Detailed description of the invention
Fig. 1 is the schematic diagram of each part dimension relationship of basic impeller of the invention.
Fig. 2 is the schematic perspective view of basic impeller blade of the invention.
Fig. 3 is the top view of basic impeller blade of the invention.
Fig. 4 is the left view of basic impeller blade of the invention.
Fig. 5 is the front view of basic impeller blade of the invention.
Fig. 6 is the schematic perspective view of hyperbolic conchoid spiral vane of the invention.
Fig. 7 is the structural schematic diagram of the hyperbolic conchoid of hyperbolic conchoid spiral vane energization runner bucket of the invention.
Fig. 8 is the schematic perspective view of multistage tidal current energy water turbine runner of the invention.
Fig. 9 is the section molded line for the hyperbolic conchoid spiral vane that the present invention acquires 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 acquires at the leading edge axial direction 132cm of wheel hub Schematic diagram.
Number explanation in figure: pod 1, rotation axis 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, basic impeller diameter D0, pod 1 Import internal diameter D1, pod 1 import outer diameter D2, pod 1 outlet diameter D3, wheel hub 3 diameter Dh, wheel hub 3 length L0、 The intermediate segment length L of pod 11, pod 1 entrance length L2, pod 1 exit length L3, support shaft 7 it is straight Diameter Dp, support shaft 7 front end to pod 1 entrance section distance L4, hydraulic swivel head bearing 8 to 1 lower part of pod 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。
Specific embodiment
A specific embodiment of the invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1:
In conjunction with Fig. 1 to Figure 10, a kind of multistage marine tidal-current energy water wheels based on real-time, tunable pod corner proposed by the present invention Machine, including pod 1, the wheel hub being fixed in rotation axis 23, the basic impeller being fixed on wheel hub 3, described turn Moving axis 2, wheel hub 3 and basic impeller are all set in pod 1, in which: further include the support shaft of 1 corner of real-time, tunable pod 7, the energization runner of the hyperbolic conchoid spiral vane 9 with radius variable, the energization runner are located at the outlet end of pod 1, The hyperbolic conchoid spiral vane 9 is gradually to be stretched according to the helix of hyperbolic conchoid along the axial direction of rotation axis 2, is handed in space Fork distorted shape is simultaneously uniformly set in the inner circumferential wall of rotation axis 2, take the rotation axis 2 as the hyperbolic of the center surfaces of revolution 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 rotation axis On 2 peripheries, the coordinate of the key point of radius maximum indicates as follows on the axially different section Curve of wing under, The space abscissa value that the key point on the section Curve of wing of hyperbolic conchoid spiral vane 9 is represented with X, represents hyperbolic 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 at leading edge axial direction 102cm of the face aerofoil profile apart from wheel hub 3 referring to table 1,
Table 1:
Serial number X Y Serial 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 as follows:
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；
The parameter at leading edge axial direction 132cm apart from wheel hub referring to table 2,
Table 2:
Two curvilinear equations after fitting are respectively as follows:
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 pod 1 are respectively influent side 5 and water outlet side 6, and water flow flows to institute along axial direction from the influent side 5 State water outlet side 6；The basis impeller includes 3 pieces of blades 4 in distorted shape, the lower end of pod 1 and real-time, tunable pod 1 The support shaft 7 of corner is fixedly connected, and the middle part of the support shaft 7 is equipped with the hydraulic swivel head bearing for controlling 1 corner of pod 8；The diameter D of the rotation axis 2hWith the diameter D of basic impeller0Ratio be 0.21~0.28, the interlude diameter of pod 1 D1With the diameter D of basic impeller0Ratio be 1.05~1.13, the diameter D of the influent side 5 of pod 12It is straight with basic impeller Diameter D0Ratio be 1.20~1.27, the diameter D of the water outlet side 6 of pod 13With the diameter D of basic impeller0Ratio be 1.68 ~1.75；The blade 4 of basic impeller by water flow impact and with rotation axis 2 interlock rotate.
Embodiment 2:
In conjunction with 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 serial number Established angle (°) Section serial 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
From blade root to blade tip established angle and section number is the fitting of 6 powers, established angle fit equation are as follows:
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 from blade root to the chord length of blade tip blade and section number is that 7 powers are fitted in the blade 4 of distorted shape, chord length is fitted Equation are as follows:
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:
In conjunction with Fig. 1, the spherical protrusion of shape of wheel hub 3 of the present invention, the length L of wheel hub 30In pod 1 Between segment length L1Ratio be 0.29~0.36, the entrance length L of pod 12With the intermediate segment length L of pod 11Ratio Value is 0.08~0.15, the exit length L of pod 13With the intermediate segment length L of pod 11Ratio be 0.51~0.58, The diameter Dp of the support shaft 7 and total length (L of pod 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 pod 11+L2+L3) ratio be 0.45~0.65, hydraulic swivel head Bearing 8 to 1 lower part of pod 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 the diameter Dp of Hp and support shaft 7 is 0.15-0.35；When direction of flow is not orthogonal to 5 entrance of influent side of pod 1 When plane, electric motor starting in support shaft 7 adjusts the corner of pod 1 to best inflow angle by hydraulic swivel head bearing 8；Consider The incoming flow variation faint to structural stability and trend, the angle that hydraulic swivel head bearing 8 adjusts pod 1 is -8 degree to+8 degree.
Embodiment 4:
In conjunction with Fig. 1, each interface in the down-flowing incoming direction of pod 1 of the present invention is rectangle, each rectangle Height remain unchanged, in the interface in down-flowing incoming direction, pod 1 is substantially symmetrical about its central axis with wheel hub 3；Pod 1 it is each Top view cross section is equal, two sections straight line is transitioned by streamlined to be tubaeform, intermediate.
The specific embodiment of main component size of the invention is further disclosed with reference to the accompanying drawing.
Embodiment 5:
In conjunction with Fig. 1, the inlet diameter of pod 1 of the present invention is 302cm, basic runner diameter is 240cm, rotation axis Diameter is 50cm, and the interlude diameter of pod 1 is 270cm, and the exducer diameter of pod 1 is 238cm；Pod 1 into Mouthful segment length is 22cm, intermediate segment length 144cm, exit length 84cm.The length of support shaft 7 is 50cm, when incoming flow side When to the influent side plane of inlet angle with pod 1 being 85 degree, hydraulic swivel head bearing 8 adjusts the opposite initial angle of pod 1 Degree is 5 degree, makes direction of flow perpendicular to the influent side plane of inlet of pod 1.
Embodiment 6:
In conjunction with Fig. 1, the inlet diameter of pod 1 of the present invention is 453cm, the diameter of basic runner is 356cm, rotation The diameter of axis 2 is 75cm, and the interlude diameter of pod 1 is 405cm, and the exducer diameter of pod 1 is 624cm；Pod 1 Entrance length be 33cm, intermediate 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 pod 1 is 82 degree, hydraulic swivel head bearing 8 adjusts the phase of pod 1 It is 8 degree to initial angle, makes direction of flow perpendicular to the influent side plane of inlet of pod 1.
Experiment proves that a kind of multistage tidal current energy water turbine based on real-time, tunable pod corner of the invention is in 1m/s Under above flow condition can self-starting, and have high efficiency.Relative to traditional power generation of building a dam, with tide of the invention Stream can water turbine, can not only conservation of nature environment well, and be also greatly reduced the cost of generating set, Achieve the purpose that efficiently to utilize marine tidal-current energy.
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 based on real-time, tunable pod corner The specific support of multistage tidal current energy water turbine technical idea, this does not limit the scope of protection of the present invention, all according to this hair The technical idea of bright proposition, any equivalent variations or equivalent change done on the basis of the technical program still fall within this The range of inventive technique scheme protection.

Claims (4)

1. a kind of multistage tidal current energy water turbine based on real-time, tunable pod corner, including pod (1), it is fixed at and turns Wheel hub (3) on moving axis (2), the basic impeller being fixed on wheel hub (3), the rotation axis (2), wheel hub (3) and basis Impeller is all set in pod (1), which is characterized in that further includes the support shaft (7), band of real-time, tunable pod (1) corner The energization runner of the hyperbolic conchoid spiral vane (9) of radius variable, the energization runner are located at the outlet end of pod (1), The hyperbolic conchoid spiral vane (9) is gradually to be stretched according to the helix of hyperbolic conchoid along the axial direction of rotation axis (2), in sky Between intersect and distorted shape and be uniformly set on rotation axis (2), take the rotation axis (2) as the hyperbolic spiral shell of the center surfaces of revolution The intersection point in each section of line spiral vane (9) is that origin establishes coordinate system, on the axially different section Curve of wing under The coordinate of the key point of radius maximum indicates as follows, and the section aerofoil profile of hyperbolic conchoid spiral vane (9) is represented with X The space abscissa value of key point on curve represents the pass on the section Curve of wing of hyperbolic conchoid spiral vane (9) with Y The space ordinate value of key point, leading edge axial direction 102cm of the section aerofoil profile of hyperbolic conchoid spiral vane (9) apart from wheel hub (3) The parameter at place referring to table 1,
Table 1:
Serial number X Y Serial 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 as follows:
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；
The parameter at leading edge axial direction 132cm apart from wheel hub referring to table 2,
Table 2:
Serial number X Y Serial 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 as follows:
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 pod (1) are respectively influent side (5) and water outlet side (6), and water flow is from the influent side (5) along axial stream To the water outlet side (6)；It is described basis impeller include 3 pieces be in distorted shape blade (4), the lower end of pod (1) and in real time The support shaft (7) of adjustable pod (1) corner is fixedly connected, and the middle part of the support shaft (7) is equipped with for controlling pod (1) The hydraulic swivel head bearing (8) of corner；The diameter D of the rotation axis (2)hWith the diameter D of basic impeller0Ratio be 0.21~ 0.28, the interlude diameter D of pod (1)1With the diameter D of basic impeller0Ratio be 1.05~1.13, pod (1) into 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 pod (1) D3With the diameter D of basic impeller0Ratio be 1.68~1.75；The blade (4) of basic impeller by water flow impact and with rotation Axis (2) interlocks rotation.
2. a kind of multistage tidal current energy water turbine based on real-time, tunable pod corner according to claim 1, 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:
Section serial number Established angle (°) Section serial 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
From blade root to blade tip established angle and section number is the fitting of 6 powers, established angle fit equation are as follows:
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 the fitting of 7 powers, chord length fit equation in chord length of the blade (4) of distorted shape from blade root to blade tip and section number Are as follows:
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 pod corner according to claim 2, feature It is, the spherical protrusion of shape of the wheel hub (3), the length L of wheel hub (3)0With the length L of the interlude of pod (1)1's Ratio is 0.29~0.36, the length L of the inducer of pod (1)2With the length L of the interlude of pod (1)1Ratio be 0.08~0.15, the length L of the outlet section of pod (1)3With the length L of the interlude of pod (1)1Ratio be 0.51~ 0.58, the diameter Dp of support shaft (7) and the total length (L of pod (1)1+L2+L3) ratio be 0.2~0.3, support shaft (7) Center to pod (1) front end distance (L4+ 0.5Dp) with the total length (L of pod (1)1+L2+L3) ratio be 0.45 ~0.65, the distance H of hydraulic swivel head bearing (8) to pod (1) lower part1With the ratio of the diameter Dp of support shaft (7) be 1.2~ The ratio of 2.6, the diameter Dp of the height Hp and support shaft (7) of hydraulic swivel head bearing (8) are 0.15-0.35；When direction of flow not Perpendicular to pod (1) influent side (5) plane of inlet when, electric motor starting in support shaft (7) passes through hydraulic swivel head bearing (8) The corner of pod (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 pod corner according to claim 3, feature It is, each interface in the down-flowing incoming direction of the pod (1) is cylindrical shape, in the interface in down-flowing incoming direction, is led The central axis of stream cover (1) is identical as the central axis of wheel hub (3).
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109440745B (en) * 2018-11-28 2020-12-08 王杰 River water introducing and guiding device of farmland water conservancy irrigation ditch with pressurized water inflow
CN109681369A (en) * 2018-11-29 2019-04-26 河海大学 A kind of flow increasing formula intelligence hydraulic turbine system of the isometrical scroll tail water stream flow-increasing device of band
CN109854440A (en) * 2018-11-29 2019-06-07 河海大学 A kind of flow increasing formula intelligence hydraulic turbine system with streamlined tail water stream flow-increasing device
CN109611264A (en) * 2018-11-29 2019-04-12 河海大学 A kind of flow increasing formula intelligence hydraulic turbine system with involute shape tail water stream flow-increasing device
CN109854439A (en) * 2018-11-29 2019-06-07 河海大学 Flow increasing formula hydraulic turbine system with spiral of Bernoulli shape tail water stream flow-increasing device
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Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH158916A (en) * 1931-10-20 1932-12-15 Weber Wilhelm Water turbine.
NZ584908A (en) * 2007-10-04 2012-10-26 Stephen Mark West Turbine assembly with plural blades of different diameter in reversed orientation
GB2494572A (en) * 2007-11-16 2013-03-13 Elemental Energy Technologies Ltd Helical pump or turbine blade comprising radial beams
CN101413472B (en) * 2008-11-27 2010-09-29 上海交通大学 Free style electric generating apparatus of river water stream
CN101737224A (en) * 2009-12-22 2010-06-16 华南理工大学 Tubular turbine with two-stage rotating wheels, internal and external sleeved shafts and a single bulb body
CN103502632A (en) * 2011-04-27 2014-01-08 约尼·约凯拉 Hydraulic turbine and hydroelectric power station
DE102011116682A1 (en) * 2011-10-21 2013-04-25 Rüdiger Ufermann Flow turbine for tidal power plant for low flow velocities, has housing, tapered Archimedean screw connected with shaft in form-fit and force-fit manner, and rotor blade connected with shaft in form-fit and force-fit manner
CN202832943U (en) * 2012-09-25 2013-03-27 吴春根 Water flow generator
CN103939264B (en) * 2014-05-04 2016-08-24 钟群明 Generating power by water current unit
CN104179625A (en) * 2014-07-31 2014-12-03 河海大学 Straight-pipe ultramicro water turbine
CN105697224B (en) * 2016-02-02 2016-09-28 河海大学 A kind of Fibonacci spiral type hydraulic turbine utilizing marine tidal-current energy to generate electricity
CN105736230B (en) * 2016-02-02 2017-12-26 河海大学 A kind of horizontal axis tidal current energy hydraulic turbine with constant speed spiral vane
CN105736229B (en) * 2016-02-02 2017-12-26 河海大学 A kind of horizontal axis tidal current energy hydraulic turbine with loudspeaker spiral vane

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