CN105736228A - Horizontal-shaft tidal turbine with logarithmic spiral vanes - Google Patents

Horizontal-shaft tidal turbine with logarithmic spiral vanes Download PDF

Info

Publication number
CN105736228A
CN105736228A CN201610072646.XA CN201610072646A CN105736228A CN 105736228 A CN105736228 A CN 105736228A CN 201610072646 A CN201610072646 A CN 201610072646A CN 105736228 A CN105736228 A CN 105736228A
Authority
CN
China
Prior art keywords
logarithmic spiral
spiral shape
shape blade
cone
cone hub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610072646.XA
Other languages
Chinese (zh)
Other versions
CN105736228B (en
Inventor
郑源
何中伟
芦月
阚阚
付士凤
陈宇杰
张伟婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaoyang Hengyuan Zijiang Hydroelectric Equipment Co ltd
Original Assignee
Hohai University HHU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hohai University HHU filed Critical Hohai University HHU
Priority to CN201610072646.XA priority Critical patent/CN105736228B/en
Publication of CN105736228A publication Critical patent/CN105736228A/en
Application granted granted Critical
Publication of CN105736228B publication Critical patent/CN105736228B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/006—Sealing arrangements
    • 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
    • F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • 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
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/126—Rotors for essentially axial flow, e.g. for propeller turbines
    • 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
    • F05B2200/00—Mathematical features
    • F05B2200/20—Special functions
    • F05B2200/23—Logarithm
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • 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

Landscapes

  • 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 invention relates to a horizontal-shaft tidal turbine with logarithmic spiral vanes. The horizontal-shaft tidal turbine comprises a spindle, a case, a thrust bearing, a coupling, a generator, a rack, a base and a water guide cone, wherein the lower side of the case is respectively supported by the rack and the base; the horizontal-shaft tidal turbine is characterized by further comprising logarithmic spiral vanes in two-dimensional logarithmic spiral line shape, a cone-like-shaped hub immersing into tide, and a sealing cover; the generator is connected with the spindle and the cone-like-shaped hub by the coupling, the sealing cover is arranged at the junction of the spindle and the cone-like-shaped hub, the water guide cone is arranged at the tail part of the case at the rear side of the cone-like-shaped hub; and the logarithmic spiral vanes rotate at uniform speed at the periphery of the cone-like-shaped hub by forming gradient stretching along the axial direction of the cone-like-shaped hub to form a spatial warping shape to be uniformly distributed via the thrust bearing. The horizontal-shaft tidal turbine can greatly reduce hydraulic friction collision and reduce loss at the entrance head, thus improving the capacitation effect of the water turbine and well solving the difficulty of allowing ocean fish schools to smoothly pass.

Description

A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade
Technical field
The invention belongs to hydraulic turbine technical field of power generation, particularly relate to a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade.
Background technology
In the last few years, along with marine resources and maritime rights and interests are day by day concerned, the mankind are little by little being heated up for exploration and the exploitation of marine tidal-current energy, and marine tidal-current energy is as the important component part of ocean energy, having that predictability, power density be big and the outstanding advantages such as energy stabilization, exploitation receive much concern.
The exploitation of marine tidal-current energy is concentrated mainly on technical field of power generation, and tidal current energy water turbine is its core energy conversion device.According to textural classification, existing tidal current energy water turbine mainly has the trunnion axis hydraulic turbine, horizontal shaft water-turbine and vibration hydrofoil, and these tidal current energy water turbines cut both ways, and trunnion axis hydraulic turbine Technical comparing is ripe, and capacitation efficiency is higher, but driftage loss is serious；Although horizontal shaft water-turbine simple in construction, it is easy to maintenance, but there is also self-starting problem difficult, inefficient；The research of vibration hydrofoil is started late, and is also in the exploratory stage.Meanwhile, the vibration and noise of these hydraulic turbines is big, and the marine environment that the marine organisms such as Fish, siphonopods are depended on for existence all has a degree of impact and destruction.From the patented technology announced, also cannot be introduced into the practical stage because there is aforementioned deficiency.
Chinese patent application 201210556394.X discloses " combined type tidal current energy vertical shaft water turbine ", although the program have employed the structure of outside H type, internal S type, there is the advantages such as fast startability, stability is better, but because blade vertical axis is arranged, make overall efficiency relatively low, and marine organisms are had considerable influence.Chinese patent application 201310291232.2 discloses " the marine tidal-current energy capacitation hydraulic turbine that a kind of blade posture is variable ", arc shaped blade is arranged on main shaft by on-link mode (OLM) by the program, blade posture is variable, stability of period is better, but because its structure is excessively complicated, economy is poor, does not have practical value.
In sum, the deficiencies in the prior art how are overcome to become one of emphasis difficult problem urgently to be resolved hurrily in modern water turbine technical field of power generation.
Summary of the invention
It is an object of the invention to as overcoming deficiency existing for prior art to provide a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade, the hydraulic turbine of the present invention has used in the nemaline logarithmic spiral shape blade of two dimensional logarithmic spiral dexterously, to be uniformly set on the periphery of class cone hub be uniform speed rotation along the axial gradual change of class cone hub stretching formation spatial warping shape, greatly reduce hydraulic friction collision, reduce entrance head loss, thus improve hydraulic turbine capacitation effect and solving well and make the difficult problems such as the ocean shoal of fish passes through.
According to a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes, including main shaft, cabinet, thrust bearing, shaft coupling, electromotor, frame, base, water guide cone, support with frame and base respectively below described cabinet；It is characterized in that, also include being the nemaline logarithmic spiral shape blade of two dimensional logarithmic spiral, the class cone hub immersed in torrent stream, seal closure；Described electromotor is coupled with class cone hub by shaft coupling and main shaft, in main shaft and class cone hub junction, seal closure is set, cabinet afterbody on rear side of class cone hub arranges water guide cone, described logarithmic spiral shape blade by thrust bearing with along the axial gradual change of class cone hub stretch formed spatial warping shape be uniformly set on the periphery of class cone hub；On cross section Curve of wing under the described logarithmic spiral shape blade axially different distance on class cone hub periphery, the coordinate of key point represents as follows, X and Y represents the spatial value of key point on logarithmic spiral shape blade profile Curve of wing respectively, and the parameter at the axial 55cm place of leading edge of distance-like cone hub is referring to table 1:
Table 1
Sequence number X Y Sequence number X Y
1 28.9772 4.8031 11 25.8547 13.5602
2 32.1969 5.3368 12 28.5861 15.0669
3 35.4166 5.8704 13 31.3174 16.5736
4 38.6362 6.4041 14 34.0488 18.0803
5 41.8559 6.9378 15 36.7802 19.587
6 45.0756 7.4715 16 39.5116 21.0937
7 48.2953 8.0051 17 42.243 22.6004
8 51.515 8.5388 18 44.9744 24.1071
9 54.7347 9.0725 19 47.7058 25.6138
10 57.9544 9.6062 20 50.4372 27.1205
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade: y=0.1650x+0.0073；
The right string of logarithmic spiral shape blade: y=0.5516x-0.7018；
The parameter at the axial 110cm place of leading edge of distance-like cone hub is referring to table 2:
Table 2
Sequence number X Y Sequence number X Y
1 -82.5421 -9.6819 11 -74.9703 -28.2068
2 -77.9564 -9.144 12 -58.0275 -21.9386
3 -73.3708 -8.6061 13 -70.7346 -26.6397
4 -68.7851 -8.0682 14 -41.0848 -15.6704
5 -64.1994 -7.5303 15 -66.4989 -25.0727
6 -59.6137 -6.9925 16 -49.5561 -18.8045
7 -55.0281 -6.4546 17 -53.7918 -20.3716
8 -50.4424 -5.9167 18 -62.2632 -23.5056
9 -45.8567 -5.3788 19 -45.3204 -17.2375
10 -41.271 -4.8409 20 -36.8491 -14.1034
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade: y=0.1174x+0.0014；
The right string of logarithmic spiral shape blade: y=0.3694x-0.4771；
The parameter at the axial 165cm place of leading edge of distance-like cone hub is referring to table 3:
Table 3
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade: y=1.0522x+0.0118；
The right string of logarithmic spiral shape blade: y=0.0001x2+1.5697x-1.9677；
The parameter at the axial 200cm place of leading edge of distance-like cone hub is referring to table 4:
Table 4
Sequence number X Y Sequence number X Y
1 18.44 -55.814 11 28.439 -51.406
2 20.489 -62.015 12 31.457 -57.118
3 22.538 -68.217 13 34.476 -62.83
4 24.587 -74.418 14 37.494 -68.541
5 26.636 -80.62 15 40.513 -74.253
6 28.685 -86.821 16 43.531 -79.965
7 30.733 -93.023 17 46.55 -85.677
8 32.782 -99.225 18 49.569 -91.388
9 34.831 -105.426 19 52.587 -97.1
10 36.88 -111.628 20 55.606 -102.812
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade: y=0.0001x2-3.0283x+0.0087；
The right string of logarithmic spiral shape blade: y=-0.0001x2-1.8885x+2.3695；
The parameter at the axial 250cm place of leading edge of distance-like cone hub is referring to table 5:
Table 5
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade: y=0.0727x+0.0059；
The right string of logarithmic spiral shape blade: y=0.2255x-0.2832.
The principle that realizes of the present invention is: the hydraulic turbine of the present invention has used in two dimensional logarithmic spiral wire shaped logarithmic spiral shape blade dexterously, to be uniformly set on the periphery of class cone hub along the axial gradual change of class cone hub stretching formation spatial warping shape, when trend flows through the hydraulic turbine of the present invention, trend particle is then uniform speed rotation along with streaming logarithmic spiral shape blade, greatly reduce hydraulic friction collision, reduce entrance head loss, thus improve hydraulic turbine capacitation effect；Wherein, class cone hub can be arranged to different ratio of height to diameters according to tidal current speed difference, and in two dimensional logarithmic spiral, nemaline logarithmic spiral shape blade can be arranged to different pitch according to tidal current speed difference and regulate spatial warping degree；Ensure that the stability that runner rotates greatly；Rotate after external force suffered by logarithmic spiral shape blade, and then drive main shaft to rotate, then pass torque to the generating set generating being attached thereto, sea marine tidal-current energy is converted into electric energy.
Compared with prior art it has the remarkable advantages that the present invention:
First, the logarithmic spiral shape blade of the present invention is two dimensional logarithmic spiral wire shaped, to be uniformly set on the periphery of class cone hub be uniform speed rotation along the axial gradual change of class cone hub stretching formation spatial warping shape, greatly reduce hydraulic friction collision, reduce entrance head loss, thus improve hydraulic turbine capacitation effect；
Second, the class cone hub of the present invention is the class cone shape of the three-dimensional logarithmic spiral wire-wound axial-rotation formation of described logarithmic spiral shape vane inside edge, coordinate with logarithmic spiral shape blade and synergism, not only substantially reduce the vibration and noise of water turbine units, and the ocean shoal of fish can be made to pass through, efficiently solve the Fish existing for prior art and be difficult to migrate, the marine eco-environment damaged and problem that tidal current energy water turbine and marine organisms are difficult to coexist.
3rd, the hydraulic turbine structure of the present invention has filled up the blank of the art, it efficiently solves a difficult problem for the self-starting difficulty existing for prior art, and class cone hub can be arranged to different ratio of height to diameters according to tidal current speed difference, the cross sectional shape of logarithmic spiral shape blade can symmetrically airfoil type or asymmetric airfoil type, this working in coordination with class cone hub and logarithmic spiral shape blade mates produced thrust, it is possible to obtain more marine tidal-current energy.
4th, the hydraulic turbine structure good stability of the present invention, effective time length and efficiency are high, can as the upgraded product of prior art, it is adaptable to substitute the various hydraulic turbines utilizing sea marine tidal-current energy generating in this area.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes.
Fig. 2 is the body contour structures schematic diagram of a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes.
Fig. 3 is the log spiral schematic diagram of the logarithmic spiral shape blade that the present invention proposes.
Fig. 4 is the runner outer shape structural representation of a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes.
Fig. 5 is the contour structures schematic diagram of the single pair of number spiral vane that the present invention proposes.
Fig. 6 is the contour structures schematic diagram of the double-log spiral vane combination that the present invention proposes.
Fig. 7 is the axially distinct position schematic cross-section of the logarithmic spiral shape blade that the present invention proposes.
Fig. 8 is the distance-like cone hub leading edge axial 55cm place logarithmic spiral shape blade profile molded line schematic diagram that the present invention proposes.
Fig. 9 is the distance-like cone hub leading edge axial 110cm place logarithmic spiral shape blade profile molded line schematic diagram that the present invention proposes.
Figure 10 is the distance-like cone hub leading edge axial 165cm place logarithmic spiral shape blade profile molded line schematic diagram that the present invention proposes.
Figure 11 is the distance-like cone hub leading edge axial 200cm place logarithmic spiral shape blade profile molded line schematic diagram that the present invention proposes.
Figure 12 is the distance-like cone hub leading edge axial 250cm place logarithmic spiral shape blade profile molded line schematic diagram that the present invention proposes.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
In conjunction with Fig. 1-3, a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes, including main shaft (3), cabinet (5), thrust bearing (6), shaft coupling (7), electromotor (8), frame (9), base (10), water guide cone (11), described cabinet (5) lower section supports with frame (9) and base (10) respectively；Also include being two dimensional logarithmic spiral nemaline logarithmic spiral shape blade (1), the class cone hub (2) immersed in torrent stream, seal closure (4)；Described electromotor (8) is coupled with class cone hub (2) by shaft coupling (7) and main shaft (3), in main shaft (3) and class cone hub (2) junction, seal closure (4) is set, class cone hub (2) rear side cabinet (5) afterbody water guide cone (11) is set, described logarithmic spiral shape blade (1) by thrust bearing (6) with along the axial gradual change of class cone hub (2) stretch formed spatial warping shape be uniformly set on the periphery of class cone hub (2).
In conjunction with Fig. 4-12, logarithmic spiral shape blade (1) of the present invention on class cone hub (2) periphery axially different apart under cross section Curve of wing on the coordinate of key point represent as follows, X and Y represents the spatial value of key point on the Curve of wing of logarithmic spiral shape blade (1) cross section respectively, and the parameter at the axial 55cm place of leading edge of distance-like cone hub (2) is referring to table 1:
Table 1
Sequence number X Y Sequence number X Y
1 28.9772 4.8031 11 25.8547 13.5602
2 32.1969 5.3368 12 28.5861 15.0669
3 35.4166 5.8704 13 31.3174 16.5736
4 38.6362 6.4041 14 34.0488 18.0803
5 41.8559 6.9378 15 36.7802 19.587
6 45.0756 7.4715 16 39.5116 21.0937
7 48.2953 8.0051 17 42.243 22.6004
8 51.515 8.5388 18 44.9744 24.1071
9 54.7347 9.0725 19 47.7058 25.6138
10 57.9544 9.6062 20 50.4372 27.1205
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.1650x+0.0073；
The right string of logarithmic spiral shape blade (1): y=0.5516x-0.7018；
The parameter at the axial 110cm place of leading edge of distance-like cone hub (2) is referring to table 2:
Table 2
Sequence number X Y Sequence number X Y
1 -82.5421 -9.6819 11 -74.9703 -28.2068
2 -77.9564 -9.144 12 -58.0275 -21.9386
3 -73.3708 -8.6061 13 -70.7346 -26.6397
4 -68.7851 -8.0682 14 -41.0848 -15.6704
5 -64.1994 -7.5303 15 -66.4989 -25.0727
6 -59.6137 -6.9925 16 -49.5561 -18.8045
7 -55.0281 -6.4546 17 -53.7918 -20.3716
8 -50.4424 -5.9167 18 -62.2632 -23.5056
9 -45.8567 -5.3788 19 -45.3204 -17.2375
10 -41.271 -4.8409 20 -36.8491 -14.1034
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.1174x+0.0014；
The right string of logarithmic spiral shape blade (1): y=0.3694x-0.4771；
The parameter at the axial 165cm place of leading edge of distance-like cone hub (2) is referring to table 3:
Table 3
Sequence number X Y Sequence number X Y
1 35.049 36.9119 11 28.183 42.3335
2 38.9434 41.0132 12 31.1731 47.0372
3 42.8377 45.1145 13 34.1632 51.7409
4 46.732 49.2158 14 37.1532 56.4446
5 50.6264 53.3171 15 40.1433 61.1484
6 54.5207 57.4185 16 43.1334 65.8521
7 58.415 61.5198 17 46.1235 70.5558
8 62.3094 65.6211 18 49.1136 75.2595
9 66.2037 69.7224 19 52.1037 79.9632
10 70.098 73.8237 20 55.0938 84.667
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=1.0522x+0.0118；
The right string of logarithmic spiral shape blade (1): y=0.0001x2+1.5697x-1.9677；
The parameter at the axial 200cm place of leading edge of distance-like cone hub (2) is referring to table 4:
Table 4
Sequence number X Y Sequence number X Y
1 18.44 -55.814 11 28.439 -51.406
2 20.489 -62.015 12 31.457 -57.118
3 22.538 -68.217 13 34.476 -62.83
4 24.587 -74.418 14 37.494 -68.541
5 26.636 -80.62 15 40.513 -74.253
6 28.685 -86.821 16 43.531 -79.965
7 30.733 -93.023 17 46.55 -85.677
8 32.782 -99.225 18 49.569 -91.388
9 34.831 -105.426 19 52.587 -97.1
10 36.88 -111.628 20 55.606 -102.812
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.0001x2-3.0283x+0.0087；
The right string of logarithmic spiral shape blade (1): y=-0.0001x2-1.8885x+2.3695；
The parameter at the axial 250cm place of leading edge of distance-like cone hub (2) is referring to table 5:
Table 5
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.0727x+0.0059；
The right string of logarithmic spiral shape blade (1): y=0.2255x-0.2832.
In conjunction with Fig. 4-12, the further preferred version of a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes is:
The quantity of logarithmic spiral shape blade (1) of the present invention is 1 to 5 piece；The cross sectional shape symmetrically airfoil type of described logarithmic spiral shape blade (1) or asymmetric airfoil type；The pitch of described logarithmic spiral shape blade (1) is 20～40 centimetres；The height of described class cone hub (2) and diameter ratio are 3:1～5:1；The height of described water guide cone (11) and diameter ratio are 1:1～2:5；On the periphery curve of the over-rotation shaft section of described class cone hub (2), the coordinate of key point represents as follows, X and Z represents the spatial value of key point on the periphery curve of the over-rotation shaft section of class cone hub (2) respectively, and design parameter is referring to table 6:
Table 6
Sequence number X Z Sequence number X Z
1 -72.0000 300.0000 11 0.0000 0.0000
2 -67.7113 265.3424 12 21.1078 25.8459
3 -63.1372 230.7214 13 31.9181 59.0301
4 -58.2120 196.1487 14 40.0684 92.9837
5 -52.8410 161.6426 15 46.8766 127.2343
6 -46.8767 127.2343 16 52.8410 161.6425
7 -40.0684 92.9837 17 58.2120 196.1487
8 -31.9180 59.0301 18 63.1372 230.7214
9 -21.1078 25.8459 19 67.7112 265.3425
10 0.0000 0.0000 20 72.0000 300.0000
The Application Example of a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes is as follows:
A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade that the present invention proposes is used when for the marine tidal-current energy flow velocity of coastal region for 1.5m/s～2.5m/s:
The design of embodiment 1 is identical with the technical solution of the present invention, and the design parameter of its critical piece is disclosed directly below:
The quantity of logarithmic spiral shape blade (1) of the present invention is 2 pieces；The cross sectional shape of logarithmic spiral shape blade (1) selects symmetry machine aerofoil profile；The height of logarithmic spiral shape blade (1) is 310cm, maximum gauge is 180cm, and minimum pitch is that 85cm, pitch gradual change are than for 5:6；The height of class cone hub (2) is 310cm, maximum gauge is 105cm；The height of described water guide cone (11) is 170cm, diameter is 105cm.
The design of embodiment 2 is identical with the technical solution of the present invention, and the design parameter of its critical piece is disclosed directly below:
The quantity of logarithmic spiral shape blade (1) of the present invention is 1 piece；The cross sectional shape of logarithmic spiral shape blade (1) selects asymmetric airfoil type；The height of constant speed spiral vane (1) is 320cm, maximum gauge is 190cm, and minimum pitch is that 85cm, pitch gradual change are than for 5:6；The height of class cone hub (2) is 320cm, maximum gauge is 105cm；The height of described water guide cone (11) is 190cm, diameter is 105cm.
The design of embodiment 3 is identical with the technical solution of the present invention, and the design parameter of its critical piece is disclosed directly below:
The quantity of logarithmic spiral shape blade (1) of the present invention is 5 pieces；The cross sectional shape of logarithmic spiral shape blade (1) selects symmetry machine aerofoil profile；The height of logarithmic spiral shape blade (1) is 320cm, maximum gauge is 160cm, and minimum pitch is that 90cm, pitch gradual change are than for 5:6；The height of class cone hub (2) is 320cm, maximum gauge is 105cm；The height of described water guide cone (11) is 160cm, diameter is 105cm.
The concrete application process of the present invention is: the runner of the present invention include logarithmic spiral shape blade (1) with along class cone hub (2) coordinated, when the trend in ocean impacts logarithmic spiral shape blade (1) of runner of the present invention, by logarithmic spiral shape blade (1) of runner, the energy of marine tidal-current energy is converted to the kinetic energy of runner, and then drive the output shaft of the horizontal axis tidal current energy hydraulic turbine to rotate, the energy of trend is converted to the kinetic energy of the horizontal axis tidal current energy hydraulic turbine, it is further driven to electrical power generators, trend flows to the rear of runner by water guide cone section, return in ocean.
The explanation being not directed in the specific embodiment of the present invention belongs to technology well known in the art, is referred to known technology and is carried out.
The present invention, through validation trial, achieves satisfied trial effect.
Above detailed description of the invention and embodiment are the concrete supports to a kind of horizontal axis tidal current energy hydraulic turbine technological thought with logarithmic spiral shape blade that the present invention proposes; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention; the any equivalent variations done on the technical program basis or the change of equivalence, all still fall within the scope of technical solution of the present invention protection.

Claims (7)

1. the horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade, including main shaft (3), cabinet (5), thrust bearing (6), shaft coupling (7), electromotor (8), frame (9), base (10), water guide cone (11), described cabinet (5) lower section supports with frame (9) and base (10) respectively；It is characterized in that, also include being two dimensional logarithmic spiral nemaline logarithmic spiral shape blade (1), the class cone hub (2) immersed in torrent stream, seal closure (4)；Described electromotor (8) is coupled with class cone hub (2) by shaft coupling (7) and main shaft (3), in main shaft (3) and class cone hub (2) junction, seal closure (4) is set, class cone hub (2) rear side cabinet (5) afterbody water guide cone (11) is set, described logarithmic spiral shape blade (1) by thrust bearing (6) with along the axial gradual change of class cone hub (2) stretch formed spatial warping shape be uniformly set on the periphery of class cone hub (2)；Described logarithmic spiral shape blade (1) on class cone hub (2) periphery axially different apart under cross section Curve of wing on the coordinate of key point represent as follows, X and Y represents the spatial value of key point on the Curve of wing of logarithmic spiral shape blade (1) cross section respectively, and the parameter at the axial 55cm place of leading edge of distance-like cone hub (2) is referring to table 1:
Table 1
Sequence number X Y Sequence number X Y 1 28.9772 4.8031 11 25.8547 13.5602 2 32.1969 5.3368 12 28.5861 15.0669 3 35.4166 5.8704 13 31.3174 16.5736 4 38.6362 6.4041 14 34.0488 18.0803 5 41.8559 6.9378 15 36.7802 19.587 6 45.0756 7.4715 16 39.5116 21.0937 7 48.2953 8.0051 17 42.243 22.6004 8 51.515 8.5388 18 44.9744 24.1071 9 54.7347 9.0725 19 47.7058 25.6138 10 57.9544 9.6062 20 50.4372 27.1205
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.1650x+0.0073；
The right string of logarithmic spiral shape blade (1): y=0.5516x-0.7018；
The parameter at the axial 110cm place of leading edge of distance-like cone hub (2) is referring to table 2:
Table 2
Sequence number X Y Sequence number X Y 1 -82.5421 -9.6819 11 -74.9703 -28.2068 2 -77.9564 -9.144 12 -58.0275 -21.9386 3 -73.3708 -8.6061 13 -70.7346 -26.6397 4 -68.7851 -8.0682 14 -41.0848 -15.6704 5 -64.1994 -7.5303 15 -66.4989 -25.0727 6 -59.6137 -6.9925 16 -49.5561 -18.8045 7 -55.0281 -6.4546 17 -53.7918 -20.3716 8 -50.4424 -5.9167 18 -62.2632 -23.5056 9 -45.8567 -5.3788 19 -45.3204 -17.2375 10 -41.271 -4.8409 20 -36.8491 -14.1034
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.1174x+0.0014；
The right string of logarithmic spiral shape blade (1): y=0.3694x-0.4771；
The parameter at the axial 165cm place of leading edge of distance-like cone hub (2) is referring to table 3:
Table 3
Sequence number X Y Sequence number X Y 1 35.049 36.9119 11 28.183 42.3335 2 38.9434 41.0132 12 31.1731 47.0372 3 42.8377 45.1145 13 34.1632 51.7409 4 46.732 49.2158 14 37.1532 56.4446 5 50.6264 53.3171 15 40.1433 61.1484 6 54.5207 57.4185 16 43.1334 65.8521 7 58.415 61.5198 17 46.1235 70.5558 8 62.3094 65.6211 18 49.1136 75.2595 9 66.2037 69.7224 19 52.1037 79.9632 10 70.098 73.8237 20 55.0938 84.667
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=1.0522x+0.0118；
The right string of logarithmic spiral shape blade (1): y=0.0001x2+1.5697x-1.9677；
The parameter at the axial 200cm place of leading edge of distance-like cone hub (2) is referring to table 4:
Table 4
Sequence number X Y Sequence number X Y 1 18.44 -55.814 11 28.439 -51.406 2 20.489 -62.015 12 31.457 -57.118 3 22.538 -68.217 13 34.476 -62.83 4 24.587 -74.418 14 37.494 -68.541 5 26.636 -80.62 15 40.513 -74.253 6 28.685 -86.821 16 43.531 -79.965 7 30.733 -93.023 17 46.55 -85.677 8 32.782 -99.225 18 49.569 -91.388 9 34.831 -105.426 19 52.587 -97.1 10 36.88 -111.628 20 55.606 -102.812
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.0001x2-3.0283x+0.0087；
The right string of logarithmic spiral shape blade (1): y=-0.0001x2-1.8885x+2.3695；
The parameter at the axial 250cm place of leading edge of distance-like cone hub (2) is referring to table 5:
Table 5
Two curvilinear equations after matching are respectively as follows:
The left string of logarithmic spiral shape blade (1): y=0.0727x+0.0059；
The right string of logarithmic spiral shape blade (1): y=0.2255x-0.2832.
2. a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade according to claim 1, it is characterised in that the quantity of described logarithmic spiral shape blade (1) is 1～5 piece.
3. a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade according to claim 2, it is characterised in that the cross sectional shape symmetrically airfoil type of described logarithmic spiral shape blade (1) or asymmetric airfoil type.
4. a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade according to claim 3, it is characterized in that, the pitch of described logarithmic spiral shape blade (1) is 20～40 centimetres, logarithmic spiral shape blade (1) axial pitch is gradually increased, and pitch gradient scale is 5:6.
5. a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade according to claim 4, it is characterised in that the height of described class cone hub (2) and diameter ratio are 3:1～5:1.
6. a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade according to claim 1 or 5, it is characterised in that: the class cone shape that the three-dimensional logarithmic spiral wire-wound axial-rotation being shaped as described logarithmic spiral shape blade (1) inner edge of described class cone hub (2) is formed；On the periphery curve of the over-rotation shaft section of described class cone hub (2), the coordinate of key point represents as follows, X and Z represents the spatial value of key point on the periphery curve of the over-rotation shaft section of class cone hub (2) respectively, and design parameter is referring to table 6:
Table 6
7. a kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade according to claim 5, it is characterised in that the height of described water guide cone (11) and diameter ratio are 1:2～4:5.
CN201610072646.XA 2016-02-02 2016-02-02 A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade Expired - Fee Related CN105736228B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610072646.XA CN105736228B (en) 2016-02-02 2016-02-02 A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610072646.XA CN105736228B (en) 2016-02-02 2016-02-02 A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade

Publications (2)

Publication Number Publication Date
CN105736228A true CN105736228A (en) 2016-07-06
CN105736228B CN105736228B (en) 2017-12-15

Family

ID=56244768

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610072646.XA Expired - Fee Related CN105736228B (en) 2016-02-02 2016-02-02 A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade

Country Status (1)

Country Link
CN (1) CN105736228B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677959A (en) * 2016-12-29 2017-05-17 河海大学 Twin-runner water turbine provided with Archimedes helical blades and used for cooling tower
CN106677960A (en) * 2016-12-29 2017-05-17 河海大学 Twin-runner water turbine applied to cooling tower and provided with circular-truncated-cone spiral blades
CN106677958A (en) * 2016-12-29 2017-05-17 河海大学 Double-turning-wheel water turbine with logarithmic spiral blades and for cooling tower
CN107806390A (en) * 2017-09-26 2018-03-16 河海大学 A kind of tidal current energy water turbine with energization runner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102099566A (en) * 2008-07-10 2011-06-15 西格诺-萨克森发明家协会 Flow converter
US20110311363A1 (en) * 2010-06-17 2011-12-22 Chris Bills Vortex propeller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102099566A (en) * 2008-07-10 2011-06-15 西格诺-萨克森发明家协会 Flow converter
US20110311363A1 (en) * 2010-06-17 2011-12-22 Chris Bills Vortex propeller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677959A (en) * 2016-12-29 2017-05-17 河海大学 Twin-runner water turbine provided with Archimedes helical blades and used for cooling tower
CN106677960A (en) * 2016-12-29 2017-05-17 河海大学 Twin-runner water turbine applied to cooling tower and provided with circular-truncated-cone spiral blades
CN106677958A (en) * 2016-12-29 2017-05-17 河海大学 Double-turning-wheel water turbine with logarithmic spiral blades and for cooling tower
CN107806390A (en) * 2017-09-26 2018-03-16 河海大学 A kind of tidal current energy water turbine with energization runner
WO2019061839A1 (en) * 2017-09-26 2019-04-04 河海大学 Tidal water turbine having energized rotary wheel

Also Published As

Publication number Publication date
CN105736228B (en) 2017-12-15

Similar Documents

Publication Publication Date Title
CN105736227B (en) A kind of horizontal axis tidal current energy hydraulic turbine of the chain spiral vane of band
CN105736230B (en) A kind of horizontal axis tidal current energy hydraulic turbine with constant speed spiral vane
CN105545580B (en) A kind of horizontal axis tidal current energy hydraulic turbine with Fermat spiral vane
CN105736231B (en) A kind of horizontal axis tidal current energy hydraulic turbine of band snail spiral vane
CN105736213B (en) A kind of equiangular spiral shape hydraulic turbine to be generated electricity using marine tidal-current energy
CN104863787B (en) A kind of wave stream coupling power-generating apparatus
CN105736228B (en) A kind of horizontal axis tidal current energy hydraulic turbine with logarithmic spiral shape blade
CN105736229B (en) A kind of horizontal axis tidal current energy hydraulic turbine with loudspeaker spiral vane
CN105201728B (en) A kind of design method of horizontal axis tidal current energy hydraulic turbine combination airfoil fan
CN103410656B (en) Wind turbine blade with transition delay control on blade root portion
CN107524557A (en) A kind of multistage tidal current energy water turbine based on real-time, tunable kuppe corner
KR101272165B1 (en) Horizontal axis aerogenerator using same width and thickness airfoil blade and its pitch angle control method
CN105697224B (en) A kind of Fibonacci spiral type hydraulic turbine utilizing marine tidal-current energy to generate electricity
Kumar et al. Investigation on performance of improved savonius rotor: An overview
Al-Ghriybah et al. Numerical investigation of inner blade effects on the conventional savonius rotor with external overlap
Jiang et al. Effect of shroud on the energy extraction performance of oscillating foil
Siregar et al. Performance of Combined Vertical Axis Wind Turbine blade between airfoil NACA 0018 with Curve Blade with and without Guide vane
Chettiar et al. Design of a gorlov turbine for marine current energy extraction
Lee et al. Power performance improvement of 500W vertical axis wind turbine with salient design parameters
CN107829873A (en) A kind of tidal current energy water turbine based on double runner
CN107829861B (en) A kind of impulse turbine based on pyriform line airfoil fan
Rathod et al. Aerodynamic Analysis of Morphing Blade for Horizontal Axis Wind Turbine
CN104047805B (en) A kind of trunnion axis and the general wind generator device of vertical axis
CN204436680U (en) A kind of efficient inclined beating type hydro-turbo generator
Wang et al. A numerical study on the performance improvement for a vertical-axis wind turbine at low tip-speed-ratios

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180211

Address after: 422001 Shaoyang City, Hunan Province Shuangqing District Baoqing Industrial Zone Industrial Park B-04 block

Patentee after: SHAOYANG HENGYUAN ZIJIANG HYDROELECTRIC EQUIPMENT Co.,Ltd.

Address before: 211100 Jiangsu City, Jiangning Province Development Zone, West Road, No. 8 Buddha

Patentee before: HOHAI University

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171215

Termination date: 20200202