CN103758688B - Horizontal axis tidal current energy water turbine yaw adjustment device - Google Patents
Horizontal axis tidal current energy water turbine yaw adjustment device Download PDFInfo
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- CN103758688B CN103758688B CN201410024413.3A CN201410024413A CN103758688B CN 103758688 B CN103758688 B CN 103758688B CN 201410024413 A CN201410024413 A CN 201410024413A CN 103758688 B CN103758688 B CN 103758688B
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- pylon
- adjustment device
- water turbine
- yaw adjustment
- yaw
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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
Abstract
A kind of horizontal axis tidal current energy water turbine yaw adjustment device, belongs to field of marine renewable energy development.The upper pylon of this yaw adjustment device is arranged on by yaw adjustment device and is fixed on the lower pylon of base, two adjusting vanes are symmetricly set on the outside of pylon respectively, lower pylon is formed radial rotary type with step and upper pylon be connected by main shaft, two radial bearings, upper bearing bracket successively, between upper pylon and lower pylon, be provided with axial thrust bearing and sealing mechanism.When there is yaw angle, the moment of torsion sum non-zero that adjusting vane produces, the direction that the moment of torsion of non-zero makes pylon and turbine proper reduce to yaw angle rotates, until when to rotate to yaw angle be the position of zero, the torque of two symmetrical adjusting vane generations is equal, direction is contrary, moment of torsion reaches balance, realizes the adjustment of driftage.This yaw adjustment device makes yaw adjustment easy, safe and energy-conservation, more stable compared with on-mechanical yaw adjustment device.
Description
Technical field
The present invention relates to a kind of horizontal axis tidal current energy water turbine yaw adjustment device, belong to field of marine renewable energy development.
Technical background
World all pays much attention to the deposit of domestically produced energy, and using the energy as strategic materials, daily life also be unable to do without the energy simultaneously, and the energy is present in the clothing, food, lodging and transportion--basic necessities of life All aspects of of the mankind.But, the serious exploitation of current fossil fuel, there is deficient sign in fossil fuel; On the other hand because the chief component of energy resource structure is fossil fuel, cause environmental pollution serious, even still cause the major reason of the series of problems such as global warming.Therefore attention has been turned to the development and utilization of new energy by various countries, and China particularly payes attention to for the development and utilization of new energy.China's marine resources enrich, and therefore the exploitation of China to ocean energy is more and more paid attention to, and after solar energy and wind energy, ocean energy will become a kind of renewable and clean energy resource of 21 century large-scale development.Horizontal axis tidal current energy water turbine is a kind of important device of catching ocean energy, but can change in time due to direction of tide, makes horizontal axis water turbine occur driftage phenomenon, reduces the efficiency that energy caught by water turbine.
Summary of the invention
In order to avoid driftage phenomenon appears in horizontal axis tidal current energy water turbine, the invention provides a set of horizontal axis tidal current energy water turbine yaw adjustment device, installation two pairs of resistance type blades that this controlling device is symmetrical on pylon, effectively utilize impact during trend break-in, resistance type blade produced, realize pure mechanical yaw adjustment.
The technical solution used in the present invention is as follows: a kind of horizontal axis tidal current energy water turbine yaw adjustment device, it comprises water turbine, pylon and base, water turbine is by blade, wheel hub and cabin link together formation, be arranged on base by pylon, it also comprises a yaw adjustment device, described pylon is divided into pylon and lower pylon, upper pylon is arranged on by yaw adjustment device and is fixed on the upper and lower pylon of base, described yaw adjustment device comprises two adjusting vanes, main shaft, upper bearing bracket, step, two radial bearings and thrust-bearing, two adjusting vanes are arranged on the outside of upper pylon respectively with the plane symmetry formed with the turbine proper axis and upper pylon axis of upper pylon intersect vertical axis, upper bearing bracket and step are fixedly installed on the Inner side of pylon, main shaft is fixedly connected with lower pylon, lower pylon passes through main shaft successively, two radial bearings, upper bearing bracket forms radial rotary type with step and upper pylon and is connected, axial thrust bearing and sealing mechanism is provided with between upper pylon and lower pylon.
When described water turbine is single direction rotation single impeller horizontal axis trend water turbine, two adjusting vanes have the structure of same flexure radian.
When described water turbine is forward and reverse rotation bilobed wheel horizontal axis trend water turbine, two adjusting vanes adopt prismatic blade.
Described sealing mechanism adopts a back-up ring be connected with upper pylon end winding support, the ring part of back-up ring matches with the cylindrical of the cylindrical of axial thrust bearing and lower pylon upper end portion, between the cylindrical and the inner circle of back-up ring ring part of lower pylon upper end portion, be provided with Sealing.
Adopt above-mentioned technological scheme, when the trend yaw angle come between flow path direction and turbine proper axis is zero degree, yaw adjustment device does not work this moment.For single direction rotation single impeller horizontal axis tidal current energy water turbine yaw adjustment device, when there is yaw angle, turbine proper axis with carry out flow path direction and form certain angle, the efficiency of catching energy of water turbine is caused to reduce, adjusting vane simultaneously on pylon is due to the change of incoming flow angle, the moment of torsion that the adjusting vane of symmetrical position is produced is different, torque direction is contrary simultaneously, the moment of torsion that the adjusting vane of meeting stream produces is greater than the non-moment of torsion of meeting stream adjusting vane and producing, the moment of torsion sum non-zero that two adjusting vanes produce, the direction that the moment of torsion of non-zero makes pylon and turbine proper reduce to yaw angle rotates, until when to rotate to yaw angle be the position of zero, the torque of two symmetrical adjusting vane generations is equal, direction is contrary, moment of torsion reaches balance, realize the adjustment of driftage.For forward and reverse rotation bilobed wheel horizontal axis tidal current energy water turbine yaw adjustment device, when rotating forward, yaw adjustment device is identical with above-mentioned principle, and the impeller of just counterrotating does not work; When trend incoming flow reverse direction, counterrotating impeller works, and rotate forward impeller and do not work, yaw adjustment device is identical with single direction rotation single impeller horizontal axis tidal current energy water turbine yaw adjustment device working principle.
Beneficial effect of the present invention: the pylon of this horizontal axis tidal current energy water turbine yaw adjustment device is divided into pylon and lower pylon, upper pylon is arranged on by yaw adjustment device and is fixed on the lower pylon of base, the plane symmetry that the turbine proper axis of two adjusting vanes above pylon axis and upper pylon intersect vertical axis is respectively formed is arranged on the outside of pylon, lower pylon passes through main shaft successively, two radial bearings, upper bearing bracket forms radial rotary type with step and upper pylon and is connected, axial thrust bearing and sealing mechanism is provided with between upper pylon and lower pylon.When there is yaw angle, the moment of torsion sum non-zero that adjusting vane produces, the direction that the moment of torsion of non-zero makes pylon and turbine proper reduce to yaw angle rotates, until when to rotate to yaw angle be the position of zero, the torque of two symmetrical adjusting vane generations is equal, direction is contrary, moment of torsion reaches balance, realizes the adjustment of driftage.Both can carry out yaw adjustment to single direction rotation single impeller horizontal axis tidal current energy water turbine, and also can align counterrotating bilobed wheel horizontal axis tidal current energy water turbine and carry out yaw adjustment.This yaw adjustment device achieves mechanical type yaw adjustment, makes yaw adjustment easier, safe and energy-conservation.Compared with on-mechanical yaw adjustment device, mechanical type yaw adjustment device is more stable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is a kind of plan view of horizontal axis trend water turbine yaw adjustment device.
Fig. 2 is the side view of single direction rotation single impeller horizontal axis trend water turbine yaw adjustment device.
Fig. 3 is the I enlarged view in Fig. 2.
Fig. 4 is the A-A view in Fig. 2.
Fig. 5 is the side view of forward and reverse rotation bilobed wheel horizontal axis trend water turbine yaw adjustment device.
Fig. 6 is the B-B view in Fig. 5.
In figure: 1, blade, 2, wheel hub, 3, upper pylon, 4, adjusting vane, 5, lower pylon, 6, pedestal, 7, cabin, 8, main shaft, 9, upper bearing bracket, 9a, step, 10, radial bearing, 11, bearing setting sleeve, 12, back-up ring fixing bolt, 13, back-up ring, 14, axial thrust bearing, 15, Sealing.
Embodiment
Fig. 1 shows a kind of plan view of horizontal axis tidal current energy water turbine yaw adjustment device, and single direction rotation single impeller water turbine and forward and reverse rotation bilobed wheel water turbine can represent schemes for this reason.Blade 1 connects on the hub 2, and wheel hub 2 is connected with cabin 7, and cabin 7 is fixed on pylon 3 top, and the left and right sides, lower end of upper pylon 3 is provided with two symmetrical adjusting vanes 4, and upper pylon 3 is connected with lower pylon 5, and lower pylon 5 is fixed on pedestal 6.
Fig. 2,3 and 4 shows a kind of structural drawing of single direction rotation single impeller horizontal axis tidal current energy water turbine yaw adjustment device.Be made up of the impeller of water turbine blade 1 and wheel hub 2, impeller and cabin 7 link together, and form turbine proper structure.Turbine proper is fixed on upper pylon 3 by cabin 7 and forms an entirety, between upper pylon 3 and lower pylon 5, yaw adjustment device is installed, the current of upset are rotated on the impact of adjusting vane 4 in order to reduce blade 1, in upper pylon 3 lower end, a set of symmetrically arranged adjusting vane 4 is installed, when yaw adjustment, relative rotation is there is in turbine proper and upper pylon 3 with lower pylon 5, therefore go up between pylon 3 and lower pylon 5 and be provided with a set of gear mechanism, main shaft 8 is fixed on lower pylon 5, the fixing upper bearing bracket 9 in upper pylon 3 inside and step 9a, at upper bearing bracket 9, radial bearing 10 is provided with between step 9a and main shaft 8, between radial bearing 10, a bearing setting sleeve 11 is installed, prevent two radial bearings 10 from moving vertically, a back-up ring 13 is fixed at upper pylon 3 bottom back-up ring fixing bolt 12, back-up ring 13 both can as the limit position part of bearing, also can as protection overcoat, the thrust-bearing 14 installed between pylon 3 and lower pylon 5 is avoided to be subject to the corrosion of seawater, thrust-bearing 14 avoids pylon 3 and forms strong end-face friction with lower pylon 5.Fix a set of Sealing 15 between back-up ring 13 and lower pylon 5, prevent seawater from infiltrating.Finally play pylon 5 to be fixed on pedestal 6, form a whole set of seabed water turbine, water turbine can as generating or prime mover of desalination of sea water.
Fig. 5,6 shows a kind of structural drawing of forward and reverse rotation bilobed wheel horizontal axis tidal current energy water turbine yaw adjustment device.An impeller is respectively installed at the two ends in cabin 7, middle position in cabin 7 is fixedly connected with upper pylon 3, the plane symmetry that the turbine proper axis of two adjusting vanes 4 above pylon axis and upper pylon intersect vertical axis is respectively formed is fixedly mounted on the outside of pylon 3, adjusting vane 4 is prismatic blade, upper pylon 3 is connected with lower pylon 5 by the gear mechanism of pylon inside, gear mechanism is identical with the gear mechanism in single direction rotation single impeller horizontal axis tidal current energy water turbine, and lower pylon 5 is fixed on pedestal 6.
Claims (1)
1. a horizontal axis tidal current energy water turbine yaw adjustment device, it comprises water turbine, pylon and base (6), water turbine is by blade (1), wheel hub (2) and cabin (7) link together formation, be arranged on base (6) by pylon, it also comprises a yaw adjustment device, described pylon is divided into pylon (3) and lower pylon (5), upper pylon (3) is arranged on by yaw adjustment device and is fixed on the lower pylon (5) of base (6), described yaw adjustment device comprises two adjusting vanes (4), main shaft (8), upper bearing bracket (9), step (9a), two radial bearings (10) and thrust-bearing (14), two adjusting vanes (4) are arranged on the outside of upper pylon (3) respectively with the plane symmetry formed with the turbine proper axis and upper pylon (3) axis of upper pylon (3) intersect vertical axis, upper bearing bracket (9) and step (9a) are fixedly installed on the Inner side of pylon (3), main shaft (8) is fixedly connected with lower pylon (5), lower pylon (5) is successively by main shaft (8), two radial bearings (10), upper bearing bracket (9) forms radial rotary type with step (9a) with upper pylon (3) and is connected, axial thrust bearing (14) and sealing mechanism is provided with between upper pylon (3) and lower pylon (5), when described water turbine is single direction rotation single impeller horizontal axis trend water turbine, two adjusting vanes (4) have the structure of same flexure radian, when described water turbine is forward and reverse rotation bilobed wheel horizontal axis trend water turbine, two adjusting vanes (4) adopt prismatic blade, it is characterized in that: described sealing mechanism adopts a back-up ring (13) be connected with upper pylon (3) end winding support, the ring part of back-up ring (13) matches with the cylindrical of the cylindrical of axial thrust bearing (14) and lower pylon (5) upper end portion, is provided with Sealing (15) between the inner circle of the cylindrical in lower pylon (5) upper end portion and back-up ring (13) ring part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024413.3A CN103758688B (en) | 2014-01-20 | 2014-01-20 | Horizontal axis tidal current energy water turbine yaw adjustment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024413.3A CN103758688B (en) | 2014-01-20 | 2014-01-20 | Horizontal axis tidal current energy water turbine yaw adjustment device |
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| CN103758688A CN103758688A (en) | 2014-04-30 |
| CN103758688B true CN103758688B (en) | 2015-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120182A (en) * | 2019-12-24 | 2020-05-08 | 安徽工业大学 | Empennage self-yaw type half-rotation impeller water turbine |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763581B (en) * | 2015-04-02 | 2017-05-24 | 国电联合动力技术有限公司 | Tidal current energy generator set and yawing method thereof |
| CN105065189B (en) * | 2015-07-31 | 2017-12-15 | 中国海洋石油总公司 | It is a kind of from convection type horizontal axis tidal current energy TRT |
| CN106014759A (en) * | 2016-05-13 | 2016-10-12 | 哈尔滨电机厂有限责任公司 | Blowdown device for steering structure of tidal-current-energy generator set |
| CN106014757A (en) * | 2016-05-13 | 2016-10-12 | 哈尔滨电机厂有限责任公司 | Double-convex-curved-surface contact sleeve steering structure of supporting column for tidal-current-energy generator set |
| EP3530934A1 (en) * | 2018-02-22 | 2019-08-28 | Siemens Gamesa Renewable Energy A/S | Method for controlling yawing of a wind turbine |
| CN108979937A (en) * | 2018-08-15 | 2018-12-11 | 南昌大学 | A kind of portable hydro advection generator |
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| DE102012202091B3 (en) * | 2012-02-13 | 2013-05-02 | Ksb Aktiengesellschaft | Underwater power plant installed in sea, has nacelle that is connected with supporting structure by rotatable bearing and is rotatably supported by bearing whose bevel direction is perpendicular to flow direction of tidal currents |
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2014
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| CN101915199A (en) * | 2010-08-11 | 2010-12-15 | 大连理工大学 | Efficient three-wheeled telescopic folding horizontal-shaft tidal current energy generating equipment |
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| DE102012202091B3 (en) * | 2012-02-13 | 2013-05-02 | Ksb Aktiengesellschaft | Underwater power plant installed in sea, has nacelle that is connected with supporting structure by rotatable bearing and is rotatably supported by bearing whose bevel direction is perpendicular to flow direction of tidal currents |
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| CN111120182B (en) * | 2019-12-24 | 2021-01-08 | 安徽工业大学 | Empennage self-yaw type half-rotation impeller water turbine |
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| CN103758688A (en) | 2014-04-30 |
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