CN105736227A - Horizontal-shaft tidal turbine with linkage spiral vanes - Google Patents
Horizontal-shaft tidal turbine with linkage spiral vanes Download PDFInfo
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- CN105736227A CN105736227A CN201610072231.2A CN201610072231A CN105736227A CN 105736227 A CN105736227 A CN 105736227A CN 201610072231 A CN201610072231 A CN 201610072231A CN 105736227 A CN105736227 A CN 105736227A
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- spiral vane
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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
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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
- F03B3/04—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
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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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- 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)
- Hydraulic Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a horizontal-shaft tidal turbine with linkage 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 linkage spiral vanes in two-dimensional linkage 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 linkage 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
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 chain spiral vane.
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 chain spiral vane, the hydraulic turbine of the present invention has used the chain spiral vane in two-dimentional chain helix shape 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 chain spiral vane 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 the class cone hub in the chain spiral vane of two-dimentional chain helix shape, immersion 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 chain spiral vane 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 chain spiral vane 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 the Curve of wing of chain spiral vane cross section 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 | 34.951 | -5.220 | 11 | 32.947 | -11.081 |
| 2 | 38.823 | -5.907 | 12 | 36.608 | -12.313 |
| 3 | 42.696 | -6.587 | 13 | 40.269 | -13.544 |
| 4 | 46.571 | -7.260 | 14 | 43.929 | -14.775 |
| 5 | 50.446 | -7.928 | 15 | 47.590 | -16.006 |
| 6 | 54.322 | -8.593 | 16 | 51.251 | -17.238 |
| 7 | 58.199 | -9.253 | 17 | 54.912 | -18.469 |
| 8 | 62.076 | -9.912 | 18 | 58.573 | -19.700 |
| 9 | 65.953 | -10.568 | 19 | 62.233 | -20.931 |
| 10 | 69.831 | -11.222 | 20 | 65.894 | -22.163 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane: y=0.0011x2-0.2253x+1.6783；
The right string of chain spiral vane: y=-0.3354x-0.0114；
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 | -45.826 | 75.281 | 11 | -35.120 | 79.780 |
| 2 | -43.305 | 71.081 | 12 | -33.169 | 75.348 |
| 3 | -40.786 | 66.879 | 13 | -31.218 | 70.916 |
| 4 | -38.268 | 62.677 | 14 | -29.266 | 66.483 |
| 5 | -35.753 | 58.473 | 15 | -27.315 | 62.051 |
| 6 | -33.241 | 54.268 | 16 | -25.364 | 57.619 |
| 7 | -30.732 | 50.060 | 17 | -23.413 | 53.187 |
| 8 | -28.228 | 45.850 | 18 | -21.462 | 48.754 |
| 9 | -25.729 | 41.636 | 19 | -19.511 | 44.322 |
| 10 | -23.237 | 37.419 | 20 | -17.560 | 39.890 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane: y=-0.0001x3-0.0054x2-1.8462x-3.3769；
The right string of chain spiral vane: y=-2.2714x+0.0025；
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 chain spiral vane: y=0.003x2-1.7248x+3.2307；
The right string of chain spiral vane: y=-2.0113x+0.0056；
The parameter at the axial 220cm 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 | 53.398 | 31.466 | 11 | 55.976 | 25.840 |
| 2 | 59.388 | 34.871 | 12 | 62.195 | 28.711 |
| 3 | 65.375 | 38.283 | 13 | 68.415 | 31.582 |
| 4 | 71.357 | 41.700 | 14 | 74.634 | 34.453 |
| 5 | 77.338 | 45.121 | 15 | 80.854 | 37.324 |
| 6 | 83.316 | 48.546 | 16 | 87.073 | 40.195 |
| 7 | 89.293 | 51.974 | 17 | 93.293 | 43.066 |
| 8 | 95.268 | 55.405 | 18 | 99.512 | 45.937 |
| 9 | 101.243 | 58.837 | 19 | 105.732 | 48.808 |
| 10 | 107.216 | 62.271 | 20 | 111.951 | 51.679 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane: y=0.0005x2+0.5337x+1.887；
The right string of chain spiral vane: y=0.4614x+0.0029；
The parameter at the axial 290cm 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 chain spiral vane (1): y=-0.0003x2-0.273x-1.7077；
The right string of chain spiral vane (1): y=-0.328x+0.0011.
The principle that realizes of the present invention is: the hydraulic turbine of the present invention has used the chain spiral vane in two-dimentional chain helix shape 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 chain spiral vane, 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 the chain spiral vane in two-dimentional chain helix shape 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 chain spiral vane, and then drive main shaft to rotate, then pass torque to the generating set generating being attached thereto, marine tidal-current energy is converted into electric energy.
Compared with prior art it has the remarkable advantages that the present invention:
First, the chain spiral vane of the present invention is two-dimentional chain helix shape, 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 that the dimensional interlocking helix of described chain spiral vane (1) inner edge is formed around axial-rotation, coordinate with chain spiral vane 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 chain spiral vane can symmetrically airfoil type or asymmetric airfoil type, this working in coordination with class cone hub and chain spiral vane 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 marine tidal-current energy to generate electricity 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 chain spiral vane 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 chain spiral vane that the present invention proposes.
Fig. 3 is the chain helix schematic diagram of the chain spiral vane 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 chain spiral vane that the present invention proposes.
Fig. 5 is the contour structures schematic diagram of the monotroded lock spiral vane that the present invention proposes.
Fig. 6 is the contour structures schematic diagram of the doubly-linked lock spiral vane combination that the present invention proposes.
Fig. 7 is the axially distinct position schematic cross-section of the chain spiral vane that the present invention proposes.
Fig. 8 is the distance-like cone hub leading edge axial 55cm place chain spiral vane cross section molded line schematic diagram that the present invention proposes.
Fig. 9 is the distance-like cone hub leading edge axial 110cm place chain spiral vane cross section molded line schematic diagram that the present invention proposes.
Figure 10 is the distance-like cone hub leading edge axial 165cm place chain spiral vane cross section molded line schematic diagram that the present invention proposes.
Figure 11 is the distance-like cone hub leading edge axial 220cm place chain spiral vane cross section molded line schematic diagram that the present invention proposes.
Figure 12 is the distance-like cone hub leading edge axial 290cm place chain spiral vane cross section 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 chain spiral vane 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 the chain spiral vane (1) of two-dimentional chain helix shape, 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 chain spiral vane (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, chain spiral vane (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 chain spiral vane (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 | 34.951 | -5.220 | 11 | 32.947 | -11.081 |
| 2 | 38.823 | -5.907 | 12 | 36.608 | -12.313 |
| 3 | 42.696 | -6.587 | 13 | 40.269 | -13.544 |
| 4 | 46.571 | -7.260 | 14 | 43.929 | -14.775 |
| 5 | 50.446 | -7.928 | 15 | 47.590 | -16.006 |
| 6 | 54.322 | -8.593 | 16 | 51.251 | -17.238 |
| 7 | 58.199 | -9.253 | 17 | 54.912 | -18.469 |
| 8 | 62.076 | -9.912 | 18 | 58.573 | -19.700 |
| 9 | 65.953 | -10.568 | 19 | 62.233 | -20.931 |
| 10 | 69.831 | -11.222 | 20 | 65.894 | -22.163 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=0.0011x2-0.2253x+1.6783；
The right string of chain spiral vane (1): y=-0.3354x-0.0114；
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 | -45.826 | 75.281 | 11 | -35.120 | 79.780 |
| 2 | -43.305 | 71.081 | 12 | -33.169 | 75.348 |
| 3 | -40.786 | 66.879 | 13 | -31.218 | 70.916 |
| 4 | -38.268 | 62.677 | 14 | -29.266 | 66.483 |
| 5 | -35.753 | 58.473 | 15 | -27.315 | 62.051 |
| 6 | -33.241 | 54.268 | 16 | -25.364 | 57.619 |
| 7 | -30.732 | 50.060 | 17 | -23.413 | 53.187 |
| 8 | -28.228 | 45.850 | 18 | -21.462 | 48.754 |
| 9 | -25.729 | 41.636 | 19 | -19.511 | 44.322 |
| 10 | -23.237 | 37.419 | 20 | -17.560 | 39.890 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=-0.0001x3-0.0054x2-1.8462x-3.3769；
The right string of chain spiral vane (1): y=-2.2714x+0.0025；
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 | 30.382 | -47.191 | 11 | 24.831 | -49.929 |
| 2 | 33.669 | -52.495 | 12 | 27.590 | -55.477 |
| 3 | 36.962 | -57.795 | 13 | 30.349 | -61.024 |
| 4 | 40.261 | -63.091 | 14 | 33.108 | -66.572 |
| 5 | 43.564 | -68.385 | 15 | 35.867 | -72.120 |
| 6 | 46.871 | -73.677 | 16 | 38.626 | -77.667 |
| 7 | 50.180 | -78.967 | 17 | 41.386 | -83.215 |
| 8 | 53.492 | -84.255 | 18 | 44.145 | -88.763 |
| 9 | 56.806 | -89.543 | 19 | 46.904 | -94.310 |
| 10 | 60.121 | -94.829 | 20 | 49.663 | -99.858 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=0.003x2-1.7248x+3.2307；
The right string of chain spiral vane (1): y=-2.0113x+0.0056；
The parameter at the axial 220cm 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 | 53.398 | 31.466 | 11 | 55.976 | 25.840 |
| 2 | 59.388 | 34.871 | 12 | 62.195 | 28.711 |
| 3 | 65.375 | 38.283 | 13 | 68.415 | 31.582 |
| 4 | 71.357 | 41.700 | 14 | 74.634 | 34.453 |
| 5 | 77.338 | 45.121 | 15 | 80.854 | 37.324 |
| 6 | 83.316 | 48.546 | 16 | 87.073 | 40.195 |
| 7 | 89.293 | 51.974 | 17 | 93.293 | 43.066 |
| 8 | 95.268 | 55.405 | 18 | 99.512 | 45.937 |
| 9 | 101.243 | 58.837 | 19 | 105.732 | 48.808 |
| 10 | 107.216 | 62.271 | 20 | 111.951 | 51.679 |
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=0.0005x2+0.5337x+1.887；
The right string of chain spiral vane (1): y=0.4614x+0.0029；
The parameter at the axial 290cm 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 chain spiral vane (1): y=-0.0003x2-0.273x-1.7077；
The right string of chain spiral vane (1): y=-0.328x+0.0011.
The further preferred version of a kind of horizontal axis tidal current energy hydraulic turbine with chain spiral vane that the present invention proposes is:
The quantity of chain spiral vane (1) of the present invention is 1 to 5 piece；The cross sectional shape symmetrically airfoil type of described chain spiral vane (1) or asymmetric airfoil type；The pitch of described chain spiral vane (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 | 0.0000 | 0.0000 | 11 | -72.0000 | 300.0000 |
| 2 | 21.1078 | 25.8459 | 12 | -67.7113 | 265.3424 |
| 3 | 31.9181 | 59.0301 | 13 | -63.1372 | 230.7214 |
| 4 | 40.0684 | 92.9837 | 14 | -58.2120 | 196.1487 |
| 5 | 46.8766 | 127.2343 | 15 | -52.8410 | 161.6426 |
| 6 | 52.8410 | 161.6425 | 16 | -46.8767 | 127.2343 |
| 7 | 58.2120 | 196.1487 | 17 | -40.0684 | 92.9837 |
| 8 | 63.1372 | 230.7214 | 18 | -31.9180 | 59.0301 |
| 9 | 67.7112 | 265.3425 | 19 | -21.1078 | 25.8459 |
| 10 | 72.0000 | 300.0000 | 20 | 0.0000 | 0.0000 |
The Application Example of a kind of horizontal axis tidal current energy hydraulic turbine with chain spiral vane that the present invention proposes is as follows:
A kind of horizontal axis tidal current energy hydraulic turbine with chain spiral vane that the present invention proposes is used when for the marine tidal-current energy flow velocity of coastal region for 1m/s～2.1m/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 the chain spiral vane (1) of the present invention is 2 pieces；The cross sectional shape of chain rotation shape blade (1) is selected symmetry machine aerofoil profile；The height of chain spiral vane (1) is 310cm, maximum gauge is 200cm, 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 180cm, 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 the chain spiral vane (1) of the present invention is 1 piece；The cross sectional shape of chain spiral vane (1) selects asymmetric airfoil type；The height of chain spiral vane (1) is 320cm, maximum gauge is 205cm, 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 to chain rotation shape blade (1) of the present invention is 5 pieces；The cross sectional shape of chain rotation shape blade (1) is selected symmetry machine aerofoil profile；Be 320cm, maximum gauge to the height of chain rotation shape blade (1) being 185cm, 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 chain spiral vane (1) with along class cone hub (2) coordinated, when the trend in ocean impacts the chain spiral vane (1) of runner of the present invention, by the chain spiral vane (1) of runner, the energy of trend 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 chain spiral vane 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 chain spiral vane, 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 the chain spiral vane (1) of two-dimentional chain helix shape, 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 chain spiral vane (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 chain spiral vane (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 chain spiral vane (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
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=0.0011x2-0.2253x+1.6783；
The right string of chain spiral vane (1): y=-0.3354x-0.0114；
The parameter at the axial 110cm place of leading edge of distance-like cone hub (2) is referring to table 2:
Table 2
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=-0.0001x3-0.0054x2-1.8462x-3.3769；
The right string of chain spiral vane (1): y=-2.2714x+0.0025；
The parameter at the axial 165cm place of leading edge of distance-like cone hub (2) is referring to table 3:
Table 3
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=0.003x2-1.7248x+3.2307；
The right string of chain spiral vane (1): y=-2.0113x+0.0056；
The parameter at the axial 220cm place of leading edge of distance-like cone hub (2) is referring to table 4:
Table 4
Two curvilinear equations after matching are respectively as follows:
The left string of chain spiral vane (1): y=0.0005x2+0.5337x+1.887；
The right string of chain spiral vane (1): y=0.4614x+0.0029；
The parameter at the axial 290cm 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 chain spiral vane (1): y=-0.0003x2-0.273x-1.7077；
The right string of chain spiral vane (1): y=-0.328x+0.0011.
2. a kind of horizontal axis tidal current energy hydraulic turbine with chain spiral vane according to claim 1, it is characterised in that the quantity of described chain spiral vane (1) is 1～5 piece.
3. a kind of horizontal axis tidal current energy hydraulic turbine with chain spiral vane according to claim 2, it is characterised in that the cross sectional shape symmetrically airfoil type of described chain spiral vane (1) or asymmetric airfoil type.
4. a kind of horizontal axis tidal current energy hydraulic turbine with chain spiral vane according to claim 3, it is characterized in that, the pitch of described chain spiral vane (1) is 20～40 centimetres, chain spiral vane (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 chain spiral vane 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 chain spiral vane according to claim 1-5, it is characterised in that: the class cone shape that the dimensional interlocking helix being shaped as described chain spiral vane (1) inner edge of described class cone hub (2) is formed around axial-rotation；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 chain spiral vane according to claim 6, it is characterised in that the height of described water guide cone (11) and diameter ratio are 1:2～4:5.
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