CN103171744B - The marine blower foundation that floats - Google Patents
The marine blower foundation that floats Download PDFInfo
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- CN103171744B CN103171744B CN201310108459.9A CN201310108459A CN103171744B CN 103171744 B CN103171744 B CN 103171744B CN 201310108459 A CN201310108459 A CN 201310108459A CN 103171744 B CN103171744 B CN 103171744B
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- buoyancy tank
- blower foundation
- swing
- swing block
- damping telescopic
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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
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
Abstract
The embodiment of the present invention provides a kind of marine blower foundation that floats, and relates to Offshore Wind Power Generation Technology, carries effectively to reduce floating blower foundation wind-engaging, wave carries the swing vibration caused.Float blower foundation at described sea, comprising buoyancy tank, column and the bracing frame for connecting buoyancy tank and column, wherein, also comprising shock absorption device, and shock absorption device is arranged on buoyancy tank inside and swings with buoyancy tank and absorb the swing energy of buoyancy tank.The present invention is mainly used in support floating formula offshore wind turbine.
Description
Technical field
The present invention relates to Offshore Wind Power Generation Technology, particularly relate to the marine blower foundation that floats.
Background technology
In the region, deep-sea away from continent, have the wind resource of a lot of high-quality to be exploited, market outlook application is wide.When developing the wind resource in these regions, deep-sea, if according to the way that the offshore wind turbine of current neritic province domain generally adopts, then need to use the various pileworks that run through being fixed on seabed to fix offshore wind turbine foundation, due to along with sea water advanced increase, the fixed type blower foundation cost straight line of offshore wind turbine rises, and therefore makes the construction cost of fixed offshore wind power generating set compare floating type offshore wind generating higher.
Therefore, in order to make the construction of offshore wind turbine to deep-sea regional development, the floating type offshore wind turbine of exploiting economy practicality can be needed, wherein require that the fan foundation structure of floating type offshore wind turbine is compact, economical and practical.
The blower foundation (being called for short the blower foundation that floats) of existing floating type offshore wind turbine comprises buoyancy tank, column and bracing frame.Buoyancy tank is connected with column by bracing frame, and column is used for fixed pedestal offshore wind turbine.Wherein, the blower foundation that floats swims in sea by buoyancy tank.Due to the harsh environment that sea turn is high, the wave is high, make floating blower foundation be subject to wind carry, wave carry impact and there is swing vibration, easily make floating blower foundation damage; Meanwhile, the blower foundation swing vibration that floats can pass on offshore wind turbine, easily equally causes larger damage to offshore wind turbine.
Summary of the invention
Embodiments of the invention provide a kind of marine blower foundation that floats, and carry, wave carries the swing vibration caused effectively to reduce floating blower foundation wind-engaging.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of marine blower foundation that floats, comprising buoyancy tank, column and the bracing frame for connecting buoyancy tank and column, also comprising shock absorption device, shock absorption device is arranged on buoyancy tank inside and swings with buoyancy tank and absorb the swing energy of buoyancy tank.
The structure of the shock absorption device that the embodiment of the present invention provides has multiple, and a kind of preferred structure is that described shock absorption device comprises swing block, has gap, and be connected with at least two damping telescopic devices between swing block and buoyancy tank between swing block and buoyancy tank inwall.
Specifically, swing block is provided with the first bearing, and buoyancy tank inwall is provided with the second bearing, damping telescopic device one end and the first bearing is hinged, the other end and the second bearing hinged.
Preferably, the mode that described damping telescopic and the first bearing, the second bearing are hinged is ball pivot or Hooke's hinge.
In order to make shock absorption device more effectively reduce the impulsive force that is subject in level and vertical direction of blower foundation that floats, between described damping telescopic device and buoyancy tank inwall and swing block, there is certain angle.
Preferably, when floating blower foundation is positioned at static state, described angle is 45 degree.
In order to make swing block uniform force, swing vibration steady, described at least two damping telescopic devices distribute symmetrically.
In order to avoid floating blower foundation and sea turn carry, within unrestrained year, resonate, the hunting frequency of described swing block is less than or greater than the natural frequency that sea turn carries, wave carries.
In order to make, swing block is stressed more evenly, swing vibration is more steady, and the number of described damping telescopic device is 4.
Preferably, swing block is rectangular structure, described damping telescopic device surface disposed thereon.
The sea that the embodiment of the present invention provides is floated in blower foundation, owing to being provided with shock absorption device in buoyancy tank inside, and the blower foundation that floats swims in sea by the buoyancy that buoyancy tank is produced at sea, therefore sea turn carries, when wave carries and impacts floating blower foundation, can swing vibration be there is in the buoyancy tank floated in blower foundation, thus the shock absorption device being located at buoyancy tank inside is with buoyancy tank swing vibration, this shock absorption device can absorbing vibration energy effectively simultaneously, reduce the swing vibration degree of buoyancy tank, thus reduce floating blower foundation wind-engaging and carry, wave carries the swing vibration caused, prevent floating blower foundation and offshore wind turbine damaged.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is for sea that the embodiment of the present invention provides floating fan foundation structure schematic diagram;
The buoyancy tank inner structure schematic diagram that Fig. 2 provides for the embodiment of the present invention;
The shock absorption device structural representation that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The embodiment of the present invention provides a kind of marine blower foundation that floats, as depicted in figs. 1 and 2, the floating blower foundation in this sea comprises buoyancy tank 11, column 12 and the bracing frame 13 for connecting buoyancy tank 11 and column 12, wherein, the floating blower foundation in this sea also comprises shock absorption device 21, and shock absorption device 21 is arranged on buoyancy tank 11 inside and swings with buoyancy tank 11 and the swing energy absorbing buoyancy tank 11.
The sea that the embodiment of the present invention provides is floated in blower foundation, owing to being provided with shock absorption device in buoyancy tank inside, and the blower foundation that floats swims in sea by the buoyancy that buoyancy tank is produced at sea, therefore sea turn carries, when wave carries and impacts floating blower foundation, can swing vibration be there is in the buoyancy tank floated in blower foundation, thus the shock absorption device being located at buoyancy tank inside is with buoyancy tank swing vibration, this shock absorption device can absorbing vibration energy effectively simultaneously, reduce the swing vibration degree of buoyancy tank, thus reduce floating blower foundation wind-engaging and carry, wave carries the swing vibration caused, prevent floating blower foundation and offshore wind turbine damaged.
As shown in Figure 3, the sea described at above-described embodiment is floated in blower foundation, and shock absorption device 21 comprises swing block 31, has gap between swing block 31 and buoyancy tank 11 inwall, and is connected with at least two damping telescopic devices 32 between swing block 31 and buoyancy tank 11.Afloat wind carries, when wave carries and makes floating blower foundation generation swing vibration, make buoyancy tank 11 that swing vibration occur, owing to being connected by damping telescopic device 32 between swing block 31 with buoyancy tank 11, then when this swing block 31 is with buoyancy tank 11 swing vibration, damping telescopic device 32 can be driven to produce fore and aft motion, carry out absorbing vibration energy, this vibration energy is converted into heat simultaneously, thus make the swing vibration of buoyancy tank 11 be converted into the vibrations of swing block 31 and the fore and aft motion of damping telescopic device 32, thus reduce the swing vibration of floating blower foundation, the swing vibration of last swing block 31 is reduced by damping telescopic device 32.Certainly, damping telescopic device 32 can adopt the pipe expansion joint of spring type, rubber-type or other form.
Wherein, in order to ensure that swing block 31 has certain space to produce swing vibration, then have gap between swing block 31 and buoyancy tank 11 inwall, usually this gap can ensure simultaneously swing block 31 when swing vibration not with buoyancy tank 11 impacted inside and destroy buoyancy tank 11, cause unnecessary loss.In addition, in order to ensure the swing vibration that swing block 31 can continue, then at least need between swing block 31 and buoyancy tank 11 to be connected with two damping telescopic devices.
It should be explicitly made clear at this point herein, because the buoyancy tank in the floating blower foundation of floating type offshore wind generating unit mostly is rigid structure, and its material is also generally rigidity, therefore carry at buoyancy tank wind-engaging, wave carry and swing vibration time, integrally swing vibration will be there is in buoyancy tank, can not to its internal delivery application force, therefore, rely on merely and connect damping telescopic device between buoyancy tank inwall or other shock absorption device cannot realize to the swing vibration energy absorbing buoyancy tank, the swing vibration of floating blower foundation effectively can be reduced by arranging swing block and damping telescopic device.
As shown in Figure 3, swing block 31 is provided with the first bearing 33, and buoyancy tank 11 inwall is provided with the second bearing 34, damping telescopic device 32 one end can hinged with the first bearing 33, the other end can be hinged with the second bearing 34.Damping telescopic device 32 and the first bearing 33 and the second bearing 34 hinged, ensure the degree of freedom of swing block 31, be convenient to swing block 31 and in a plurality of directions swing vibration occur.
Be specifically as follows, damping telescopic device 32 and the hinged mode of the first bearing 33, second bearing 34 can be ball pivot or Hooke's hinge.In figure 3, adopt ball pivot mode to connect, coupling end can be made to rotate in all directions, ensure swing block 31 swing vibration fully, certainly, damping telescopic device 32 and the first bearing 33 and the second bearing 34 hinged also can be other articulated manner.
As shown in Figure 3, certain angle can be there is between damping telescopic device 32 and buoyancy tank 11 inwall and swing block 31.For floating blower foundation, be mainly subject to carrying from wind, the impulsive force of impulsive force that wave carries the horizontal direction produced and the vertical direction that offshore wind turbine produces.Then make to there is certain angle between itself and buoyancy tank 11 inwall and swing block 31 by arranging damping telescopic device 32, when making damping telescopic device 32 that fore and aft motion occur, motion in the horizontal direction and motion vertically can be decomposed into, then for the impulsive force of horizontal direction, swing block 31 can wigwag motion vibrations make damping telescopic device 32 do fore and aft motion simultaneously, reduce the impulsive force of horizontal direction, for the impulsive force of vertical direction, swing block 31 can up-and-down movement, damping telescopic device 32 does fore and aft motion simultaneously, reduces the impulsive force of vertical direction.In addition, because the uncertain factor of maritime environment is a lot, then the swing vibration direction of the blower foundation that floats is changeable, and this kind of setting of damping telescopic device 32 can adapt to the swing vibration of swing block 31 along other directions.
As shown in Figure 3, in the floating blower foundation that above-described embodiment describes, when floating blower foundation is positioned at static state, angle can be 45 degree.Wherein, static state refers to that swing vibration does not occur buoyancy tank 11, the state of floating residing for blower foundation when swing block 31, relative to buoyancy tank 11, relative motion does not occur simultaneously, in addition, 45 angles that the present embodiment adopts are repeatedly the preferred angle of swing block 31 swing vibration obtained after analogue test, can certainly be the angle of other size.
In the floating blower foundation that above-described embodiment describes, at least two damping telescopic devices 32 can distribute symmetrically.At least two the damping telescopic devices 32 distributed symmetrically, the power along damping telescopic device 32 direction that swing block 31 is subject to also distributes symmetrically, then ensure that swing block 31 is at horizontal or vertical direction easy motion
The sea that the various embodiments described above describe is floated in blower foundation, and the hunting frequency of swing block 31 is less than or greater than the natural frequency that sea turn carries, wave carries.If the natural frequency that sea turn carries, wave carries is identical with the hunting frequency of swing block 31, then resonance effect can be there is, floating blower foundation wind-engaging is carried, that wave carries effect swing vibration degree is more and more violent, the effect absorbing buoyancy tank 11 vibration energy cannot be played, blower foundation and offshore wind turbine and destructible floats, therefore, the hunting frequency of swing block 31 should avoid the natural frequency that sea turn carries, wave carries.
Wherein, the hunting frequency of swing block 31 according to the rigidity size of the weight of swing block 31 and damping telescopic device 32, and can be determined by test of many times.
As shown in Figure 3, the number of damping telescopic device 32 can be 4.Correspondingly, the number of the first bearing 33 and the second bearing 34 is also 4, and distributes symmetrically, then make swing block 31 at horizontal or vertical direction easy motion fully.Certainly, also can be more damping telescopic device 32, guarantee the robust motion of swing block 31.
As shown in Figure 3, swing block 31 can be rectangular structure, and damping telescopic device 32 can surface disposed thereon.Rectangular structure is a homogeneous structure, it is more steady when swing block 31 is moved, in addition, the surface smoothing of cuboid, be convenient to be connected with damping telescopic device 32, wherein, damping telescopic device 32 is arranged on the upper surface of swing block 31, be according to the force analysis of swing block 31 when swing vibration and the best forced position obtained, make the swing vibration of floating blower foundation fully be converted into the swing vibration of swing block 31.
In addition, when the floating blower foundation in practical application sea, bracing frame 13 is mainly used in connecting buoyancy tank 11 and column 12, wherein, bracing frame 13 respectively with the connection mode of buoyancy tank 11 and column 12 can for welding, bolt is connected, hinged or other connection mode, the structure of bracing frame also can be multiple simultaneously, such as column, tabular body.As shown in Figure 1, in embodiments of the present invention, bracing frame 13 is tabular body, and this tabular body structure can increase the area of contact of bracing frame 13 and buoyancy tank 11 and column 12, is convenient to connect; The skin area of tabular body is large simultaneously, indirectly increases the buoyancy of floating blower foundation, is convenient to support offshore wind turbine.
In addition, also can increase bracing frame between adjacent buoyancy tank 11, prevent floating blower foundation due to wind carry, wave carries and disengaging or the displacement of buoyancy tank 11 occurs.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (7)
1. float a blower foundation at sea, comprising buoyancy tank, column and the bracing frame for connecting buoyancy tank and column, it is characterized in that, also comprise shock absorption device, and shock absorption device is arranged on that buoyancy tank is inner to be swung with buoyancy tank and absorb the swing energy of buoyancy tank; Described shock absorption device comprises swing block, has gap between swing block and buoyancy tank inwall, and is connected with at least two damping telescopic devices between swing block and buoyancy tank;
Swing block is provided with the first bearing, and buoyancy tank inwall is provided with the second bearing, damping telescopic device one end and the first bearing is hinged, the other end and the second bearing hinged; Certain angle is there is between described damping telescopic device and buoyancy tank inwall and swing block.
2. float blower foundation at sea according to claim 1, it is characterized in that, the hinged mode of described damping telescopic device and the first bearing, the second bearing is ball pivot or Hooke's hinge.
3. float blower foundation at sea according to claim 1, and it is characterized in that, when floating blower foundation is positioned at static state, described angle is 45 degree.
4. float blower foundation at sea according to claim 1, and it is characterized in that, described at least two damping telescopic devices distribute symmetrically.
5. float blower foundation at sea according to claim 1, it is characterized in that, the hunting frequency of described swing block is less than or greater than the natural frequency that sea turn carries, wave carries.
6. float blower foundation at sea according to claim 1, and it is characterized in that, the number of described damping telescopic device is 4.
7. float blower foundation at sea according to claim 6, and it is characterized in that, swing block is rectangular structure, described damping telescopic device surface disposed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108459.9A CN103171744B (en) | 2013-03-29 | 2013-03-29 | The marine blower foundation that floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108459.9A CN103171744B (en) | 2013-03-29 | 2013-03-29 | The marine blower foundation that floats |
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| Publication Number | Publication Date |
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| CN103171744A CN103171744A (en) | 2013-06-26 |
| CN103171744B true CN103171744B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310108459.9A Active CN103171744B (en) | 2013-03-29 | 2013-03-29 | The marine blower foundation that floats |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199900B (en) * | 2017-05-23 | 2020-04-17 | 嘉兴智行物联网技术有限公司 | Windproof intelligent charging pile |
| CN111794915A (en) * | 2020-07-16 | 2020-10-20 | 上海电气风电集团股份有限公司 | Floating type foundation and offshore wind power generation equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201202591Y (en) * | 2008-05-21 | 2009-03-04 | 三一电气有限责任公司 | Tuning quality damper vibration damping control device for fan |
| JP2010216273A (en) * | 2009-03-13 | 2010-09-30 | Penta Ocean Construction Co Ltd | Substructure of floating type ocean wind turbine generator |
| CN101852188A (en) * | 2010-06-17 | 2010-10-06 | 唐德尧 | Wind-driven generator tower frame shock absorbing device and design method thereof |
| CN102162231A (en) * | 2010-12-03 | 2011-08-24 | 道达(上海)风电投资有限公司 | Self-balancing platform system |
| CN102235011A (en) * | 2010-04-27 | 2011-11-09 | 南通大学 | Flexible floating foundation for offshore wind generating sets |
| CN102409775A (en) * | 2011-09-07 | 2012-04-11 | 江苏金风风电设备制造有限公司 | Vibration absorption control device for tuned mass damper |
| CN102434404A (en) * | 2011-12-14 | 2012-05-02 | 三一电气有限责任公司 | Fan and tower drum thereof |
| CN102758447A (en) * | 2012-07-30 | 2012-10-31 | 北京金风科创风电设备有限公司 | Semi-submersible offshore floating fan foundation |
| CN202833843U (en) * | 2012-10-08 | 2013-03-27 | 北京金风科创风电设备有限公司 | Vibration reduction system used for wind driven generator and wind driven generator |
| CN203145039U (en) * | 2013-03-29 | 2013-08-21 | 江苏金风科技有限公司 | Offshore floating fan foundation |
-
2013
- 2013-03-29 CN CN201310108459.9A patent/CN103171744B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201202591Y (en) * | 2008-05-21 | 2009-03-04 | 三一电气有限责任公司 | Tuning quality damper vibration damping control device for fan |
| JP2010216273A (en) * | 2009-03-13 | 2010-09-30 | Penta Ocean Construction Co Ltd | Substructure of floating type ocean wind turbine generator |
| CN102235011A (en) * | 2010-04-27 | 2011-11-09 | 南通大学 | Flexible floating foundation for offshore wind generating sets |
| CN101852188A (en) * | 2010-06-17 | 2010-10-06 | 唐德尧 | Wind-driven generator tower frame shock absorbing device and design method thereof |
| CN102162231A (en) * | 2010-12-03 | 2011-08-24 | 道达(上海)风电投资有限公司 | Self-balancing platform system |
| CN102409775A (en) * | 2011-09-07 | 2012-04-11 | 江苏金风风电设备制造有限公司 | Vibration absorption control device for tuned mass damper |
| CN102434404A (en) * | 2011-12-14 | 2012-05-02 | 三一电气有限责任公司 | Fan and tower drum thereof |
| CN102758447A (en) * | 2012-07-30 | 2012-10-31 | 北京金风科创风电设备有限公司 | Semi-submersible offshore floating fan foundation |
| CN202833843U (en) * | 2012-10-08 | 2013-03-27 | 北京金风科创风电设备有限公司 | Vibration reduction system used for wind driven generator and wind driven generator |
| CN203145039U (en) * | 2013-03-29 | 2013-08-21 | 江苏金风科技有限公司 | Offshore floating fan foundation |
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| CN103171744A (en) | 2013-06-26 |
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