CN103758688A - Yaw adjusting device of horizontal-axis tidal-energy water turbine - Google Patents
Yaw adjusting device of horizontal-axis tidal-energy water turbine Download PDFInfo
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- CN103758688A CN103758688A CN201410024413.3A CN201410024413A CN103758688A CN 103758688 A CN103758688 A CN 103758688A CN 201410024413 A CN201410024413 A CN 201410024413A CN 103758688 A CN103758688 A CN 103758688A
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- pylon
- water turbine
- yaw
- adjustment device
- yaw adjustment
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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
The invention discloses a yaw adjusting device of a horizontal-axis tidal-energy water turbine, and belongs to the field of marine renewable energy development. An upper tower of the yaw adjusting device is arranged on a lower tower via a yaw adjusting device body, the lower tower is fixed to a base, two adjusting blades are respectively symmetrically arranged on the outer side of the upper tower, the lower tower is radially rotationally connected with the upper tower by a spindle, two radial bearings, an upper bearing block and a lower bearing block sequentially, and an axial thrust bearing and a sealing mechanism are arranged between the upper tower and the lower tower. When a yaw angle is formed, the sum of torque generated by the adjusting blades is not zero, the upper tower and a water turbine body rotate towards a yaw angle reducing direction by the aid of the non-zero torque until the yaw angle is zero, at the moment, amplitudes of torque generated by the two symmetrical adjusting blades are equal to each other, the directions of the torque generated by the two symmetrical adjusting blades are opposite to each other, the torque generated by the two adjusting blades is balanced, and a yaw adjusting effect can be realized. The yaw adjusting device has the advantages that yaw adjustment can be carried out easily and conveniently, the yaw adjusting device is safe and is stable as compared with a non-mechanical yaw adjusting device, and energy can be saved.
Description
Technical field
The present invention relates to a kind of horizontal axis tidal current energy water turbine yaw adjustment device, belong to regenerable marine energy development field.
Technical background
World is all paid 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 mankind's clothing, food, lodging and transportion--basic necessities of life All aspects of.Yet, the serious exploitation of fossil fuel at present, there is deficient sign in fossil fuel; Chief component due to energy resource structure is fossil fuel on the other hand, causes environmental pollution serious, even still causes the major reason of the series of problems such as global warming.Therefore various countries have turned to attention the development and utilization of new energy, and China particularly payes attention to for the development and utilization of new energy.China's marine resources are abundant, so China more and more payes attention to the exploitation of ocean energy, 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, yet because direction of tide can change in time, makes horizontal axis water turbine occur driftage phenomenon, reduces the efficiency that water turbine is caught energy.
Summary of the invention
For fear of horizontal axis tidal current energy water turbine, there is driftage phenomenon, the invention provides a set of horizontal axis tidal current energy water turbine yaw adjustment device, two pairs of resistance type blades of installation of this controlling device symmetry on pylon, the impact while effectively utilizing trend break-in, resistance type blade being produced, realizes 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 the cabin formation that links together, by pylon, be arranged on base, it also comprises a yaw adjustment device, described pylon is divided into pylon and lower pylon, upper pylon is arranged on and is fixed on the upper and lower pylon of base by yaw adjustment device, described yaw adjustment device comprises two adjusting vanes, main shaft, upper bearing bracket, step, two radial bearings and thrust-bearing, two adjusting vanes plane symmetry that the turbine proper axis of above pylon axis and upper pylon intersect vertical axis forms is respectively arranged on the outside of pylon, 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 radially rotary type with step and upper pylon and is connected, between upper pylon and lower pylon, be provided with axial thrust bearing and sealing mechanism.
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 being fixedly connected with upper pylon end, 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 of lower pylon upper end portion and the inner circle of back-up ring ring part, is provided with Sealing.
Adopt above-mentioned technological scheme, when trend comes yaw angle between flow path direction and turbine proper axis to be zero degree, yaw adjustment device is not worked 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 come flow path direction to form certain angle, the Efficiency Decreasing of catching energy that causes water turbine, adjusting vane on pylon is due to the change of incoming flow angle simultaneously, make the moment of torsion difference of the adjusting vane generation of symmetrical position, torque direction is contrary simultaneously, meet the moment of torsion that the adjusting vane of stream produces and be greater than the non-moment of torsion that stream adjusting vane produces of meeting, two moment of torsion sum non-zeros that adjusting vane produces, the direction rotation that the moment of torsion of non-zero makes pylon and turbine proper reduce to yaw angle, until when to rotate to yaw angle be zero position, the torque of two symmetrical adjusting vane generations equates, opposite direction, moment of torsion reaches balance, realize the adjusting of driftage.For forward and reverse rotation bilobed wheel horizontal axis tidal current energy water turbine yaw adjustment device, while being rotated in the forward, yaw adjustment device is identical with above-mentioned principle, and just the impeller of counterrotating is not worked; When trend incoming flow reverse direction, the work of counterrotating impeller, is rotated in the forward impeller and does not work, and 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 the lower pylon that is fixed on base by yaw adjustment device, two adjusting vanes plane symmetry that the turbine proper axis of above pylon axis and upper pylon intersect vertical axis forms is respectively arranged on the outside of pylon, lower pylon passes through main shaft successively, two radial bearings, upper bearing bracket forms radially rotary type with step and upper pylon and is connected, 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 rotation that the moment of torsion of non-zero makes pylon and turbine proper reduce to yaw angle, until when to rotate to yaw angle be zero position, the torque of two symmetrical adjusting vane generations equates, opposite direction, moment of torsion reaches balance, realizes the adjusting 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 has been realized mechanical type yaw adjustment, makes yaw adjustment easier, safe and energy-conservation.Compare 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 to scheme for this reason.Blade 1 is connected on wheel hub 2, and wheel hub 2 is connected with cabin 7, and cabin 7 is fixed on pylon 3 tops, 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.The impeller that consists 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 and on upper pylon 3, is formed an integral body by cabin 7, between upper pylon 3 and lower pylon 5, yaw adjustment device is installed, in order to reduce the impact on adjusting vane 4 of current that blade 1 rotation upsets, in upper pylon 3 lower ends, a set of symmetrically arranged adjusting vane 4 is installed, when yaw adjustment, there is relative rotation with lower pylon 5 in turbine proper and upper pylon 3, between therefore upper pylon 3 and lower pylon 5, be provided with a set of gear mechanism, main shaft 8 is fixed on lower pylon 5, upper pylon 3 inner fixedly upper bearing bracket 9 and step 9a, at upper bearing bracket 9, between step 9a and main shaft 8, be provided with radial bearing 10, a bearing setting sleeve 11 is installed between radial bearing 10, prevent that two radial bearings 10 from moving vertically, in upper pylon 3 bottoms, with back-up ring fixing bolt 12, fix a back-up ring 13, back-up ring 13 both can be used as the limit position part of bearing, also can be used as protection overcoat, the thrust-bearing 14 of avoiding between pylon 3 and lower pylon 5 installing is subject to the corrosion of seawater, thrust-bearing 14 has avoided upper pylon 3 and lower pylon 5 to form strong end-face friction.Between back-up ring 13 and lower pylon 5, fix a set of Sealing 15, prevent that seawater from infiltrating.Finally play pylon 5 to be fixed on pedestal 6, form a whole set of seabed water turbine, water turbine can be used as prime mover of generating or 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, in cabin, place, 7 neutral position is fixedly connected with upper pylon 3, two adjusting vanes 4 plane symmetry that the turbine proper axis of above pylon axis and upper pylon intersect vertical axis forms is respectively 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 (4)
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) formation that links together, by pylon, be arranged on base (6), it is characterized in that: further comprising a yaw adjustment device, described pylon is divided into pylon (3) and lower pylon (5), upper pylon (3) is arranged on the lower pylon (5) that is fixed on base (6) by yaw adjustment device, 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), the plane symmetry that the turbine proper axis of two adjusting vanes (4) difference above pylon (3) axis and upper pylon (3) intersect vertical axis forms is arranged on the outside of pylon (3), 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 radially rotary type with step (9a) with upper pylon (3) and is connected, between upper pylon (3) and lower pylon (5), be provided with axial thrust bearing (14) and sealing mechanism.
2. horizontal axis tidal current energy water turbine yaw adjustment device according to claim 1, is characterized in that: 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.
3. horizontal axis tidal current energy water turbine yaw adjustment device according to claim 1, is characterized in that: when described water turbine is forward and reverse rotation bilobed wheel horizontal axis trend water turbine, two adjusting vanes (4) adopt prismatic blade.
4. horizontal axis tidal current energy water turbine yaw adjustment device according to claim 1, it is characterized in that: described sealing mechanism adopts a back-up ring (13) being fixedly connected with upper pylon (3) end, the ring part of back-up ring (13) matches with the cylindrical of axial thrust bearing (14) and the cylindrical of lower pylon (5) upper end portion, between the cylindrical of lower pylon (5) upper end portion and the inner circle of back-up ring (13) ring part, is provided with Sealing (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410024413.3A CN103758688B (en) | 2014-01-20 | 2014-01-20 | Horizontal axis tidal current energy water turbine yaw adjustment device |
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| 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 true CN103758688A (en) | 2014-04-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763581A (en) * | 2015-04-02 | 2015-07-08 | 国电联合动力技术有限公司 | Tidal current energy generator set and yawing method thereof |
| CN105065189A (en) * | 2015-07-31 | 2015-11-18 | 中国海洋石油总公司 | Self-counter flow type horizontal shaft tidal current energy power generation device |
| 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 |
| CN108979937A (en) * | 2018-08-15 | 2018-12-11 | 南昌大学 | A kind of portable hydro advection generator |
| CN111788384A (en) * | 2018-02-22 | 2020-10-16 | 西门子歌美飒可再生能源公司 | Method for controlling yaw of a wind turbine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Patent Citations (5)
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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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763581A (en) * | 2015-04-02 | 2015-07-08 | 国电联合动力技术有限公司 | Tidal current energy generator set and yawing method thereof |
| 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 |
| CN105065189A (en) * | 2015-07-31 | 2015-11-18 | 中国海洋石油总公司 | Self-counter flow type horizontal shaft tidal current energy power generation device |
| 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 |
| CN111788384A (en) * | 2018-02-22 | 2020-10-16 | 西门子歌美飒可再生能源公司 | Method for controlling yaw of a wind turbine |
| CN111788384B (en) * | 2018-02-22 | 2023-05-30 | 西门子歌美飒可再生能源公司 | Method for controlling yaw 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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