CN209743093U - Offshore wind turbine tower - Google Patents
Offshore wind turbine tower Download PDFInfo
- Publication number
- CN209743093U CN209743093U CN201920517786.2U CN201920517786U CN209743093U CN 209743093 U CN209743093 U CN 209743093U CN 201920517786 U CN201920517786 U CN 201920517786U CN 209743093 U CN209743093 U CN 209743093U
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- China
- Prior art keywords
- damping
- wind turbine
- offshore wind
- tower
- turbine tower
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- 239000013535 sea water Substances 0.000 claims abstract description 29
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 19
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 19
- 241001330002 Bambuseae Species 0.000 claims abstract description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 19
- 239000011425 bamboo Substances 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims description 64
- 229920001971 elastomer Polymers 0.000 claims description 38
- 238000010521 absorption reaction Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
the utility model discloses an offshore wind turbine tower section of thick bamboo, including a tower section of thick bamboo body, the bottom of a tower section of thick bamboo body is fixed in the seabed, be equipped with the load absorbing device who is used for absorbing wave and ocean current load on the outer wall of a tower section of thick bamboo body, load absorbing device is fixed to be set up the juncture on a tower section of thick bamboo body and sea water surface. The utility model discloses an offshore wind turbine tower section of thick bamboo can reduce the load that wave and ocean current applyed to tower section of thick bamboo body, has simple structure, can alleviate advantages such as tower section of thick bamboo total weight.
Description
Technical Field
The utility model belongs to the technical field of a tower section of thick bamboo, concretely relates to offshore wind turbine tower section of thick bamboo.
Background
With the continuous development of onshore wind resources, onshore wind farm construction has gradually become saturated. However, offshore wind farms are in the developing sunrise as a new market for wind power. Compared with onshore wind turbines, offshore wind turbines have worse working environments and face more technical challenges. The tower barrel is used as an important bearing part of the wind turbine and plays an important role in the design of the wind turbine.
For an offshore wind turbine tower, in addition to wind loads, waves and ocean currents also apply loads to the tower, and the loads are short in period and high in frequency and are loads which cannot be ignored when the offshore wind turbine tower is designed. If the loads generated by waves and sea currents are directly used as the design condition of the tower, the wall thickness of the tower needs to be designed to be thicker to ensure the strength and the service life of the tower, which can significantly increase the weight and the manufacturing cost of the tower.
It can be seen that there is a need for improvements to existing offshore wind turbine tower structures to reduce the loads imposed on the tower by waves and sea currents.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art existence, provide a simple structure, can reduce the marine fan tower section of thick bamboo of load, the weight of lightening a tower section of thick bamboo total that wave and ocean current applied to tower section of thick bamboo body.
In order to solve the technical problem, the utility model provides a technical scheme does:
The utility model provides an offshore wind turbine tower section of thick bamboo, includes tower cylinder body, the bottom of tower cylinder body is fixed in the seabed, be equipped with the load absorption device who is used for absorbing wave and ocean current load on the outer wall of tower cylinder body, load absorption device is fixed to be set up the juncture of tower cylinder body and sea water surface. The load absorption device can effectively reduce wave and ocean current loads borne by the tower cylinder body, for the tower cylinder needing to bear loads with the same strength, the tower cylinder with the structure is light in weight, low in cost and simple in structure, the junction of the tower cylinder body and the surface of seawater is also an interface of gas and liquid, the load borne by the structure is the most complex and the largest, the load not only needs to bear wind load, but also needs to bear wave load, ocean current load and stress load generated by dry and wet changes of the interface, the load absorption device is arranged on the tower cylinder body, unstable loads can be absorbed and isolated, the direct action on the tower cylinder body is avoided, and the stability of the tower cylinder body is improved.
Preferably, the above-mentioned offshore wind turbine tower comprises an above-water part and an underwater part, wherein the above-water part is arranged above the surface of the seawater, and the underwater part is arranged below the surface of the seawater and submerged by the seawater. The overwater part can effectively absorb the load generated by dynamically beating the high water outlet part of the tower body by sea surge, and the underwater part can absorb the energy of sea current impacting the underwater tower body.
Preferably, the above-mentioned offshore wind turbine tower cylinder, the load absorption device includes a lower support, a damping ring and an upper support, the lower support is fixed on the outer wall of the tower cylinder body below the surface of seawater, the upper support is fixed on the outer wall of the tower cylinder body above the surface of seawater, and the damping ring is fixedly arranged between the lower support and the upper support. The upper support and the lower support can firmly fix the damping ring on the tower cylinder body, and the damping ring is prevented from being unstable and moving to influence the load absorption effect.
Preferably, the distance between the lower support and the surface of the seawater is 3-4 m, and the distance between the upper support and the surface of the seawater is 3-4 m. Certain distances are reserved between the lower support and the upper support and the surface of the seawater so as to deal with the fluctuation of the surface of the seawater caused by the change of the offshore environment.
Preferably, the damping ring comprises more than three layers of rubber pads, and the rubber pads are mutually overlapped to form the damping ring. The capacity of the damping ring for absorbing load can be improved in multiples after the multiple layers of rubber pads are stacked, and the load finally borne by the tower barrel body is smaller.
preferably, the surface of the rubber pad is uniformly provided with a plurality of damping through holes, and the damping through holes are the same in size. Partial energy can be lost when waves and seawater pass through the damping through holes, so that the load absorption performance of the rubber pad is improved.
In the offshore wind turbine tower barrel, preferably, the wall thickness between the adjacent damping through holes is greater than or equal to the radius of the damping through holes. The arrangement is such that the damping channel is formed, and when the length dimension of the damping channel is smaller than the radius of the damping channel, the damping coefficient is too small and the damping effect is not significant.
In the offshore wind turbine tower cylinder, preferably, the damping through holes in two adjacent layers of the rubber pads are arranged in a staggered manner. The staggered arrangement of the damping through holes can enable waves and ocean currents to move in a circuitous manner in the damping through holes in a curved manner, so that the resistance effect on the waves and the ocean currents is increased, and the effect of the load absorption device on absorbing loads is further improved.
in the offshore wind turbine tower barrel, preferably, the staggered distance of the damping through holes in two adjacent layers of the rubber pads is the radius of the damping through holes. The arrangement is to form the damping channels, the damping coefficient of each damping channel is the same due to the fact that the distance of the radius of the damping through holes is staggered, the energy absorption effect of each damping channel is basically kept consistent, and the phenomenon that a certain part of the tower barrel body is overloaded due to the fact that the effect of local load absorption is poor is avoided.
In the above offshore wind turbine tower cylinder, preferably, the outer edge of the lower support is provided with an upwardly extending protective edge, and the outer edge of the upper support is provided with a downwardly extending protective edge. The safe edge can protect the load absorbing device by firm clamping, the effect of absorbing the load is prevented from being influenced by the vertical movement or the front and back movement of the safe edge, meanwhile, the safe edge can be tightly pressed by the force from waves and sea currents, and the load absorbing device is prevented from loosening.
Compared with the prior art, the utility model has the advantages of:
The utility model discloses an offshore wind turbine tower section of thick bamboo is equipped with load absorbing device, load absorbing device installs in the crossing joint portion of sea water surface and tower cylinder body, when the joint portion of a tower section of thick bamboo and the surface of water is strikeed to wave and ocean current, because load absorbing device's existence, the load can not directly be given for a tower section of thick bamboo, but falls the high frequency heavy load that produces a tower section of thick bamboo with wave and ocean current for the low frequency light load earlier, effectively reduced the wave and ocean current load that tower cylinder body received, still have simple structure simultaneously, advantages such as convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of an offshore wind turbine tower of an embodiment.
FIG. 2 is a schematic structural diagram of a damping ring in an offshore wind turbine tower according to an embodiment.
Fig. 3 is a schematic view of the damping ring in fig. 2 along direction a.
Illustration of the drawings:
1. The sea floor; 2. waves and currents; 3. a load-absorbing device; 31. a lower support; 32. a damping ring; 321. a first layer of rubber mat; 3211. a damping through hole; 322. a second layer of rubber mat; 323. a third layer of rubber pad; 324. a fourth layer of rubber mat; 33. an upper support; 4. a tower barrel body.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
As shown in fig. 1 to 3, the offshore wind turbine tower cylinder of the embodiment includes a tower cylinder body 4, the bottom of the tower cylinder body 4 is fixed on the seabed 1, a load absorption device 3 for absorbing wave and ocean current loads is arranged on the outer wall surface of the tower cylinder body 4, and the load absorption device 3 is fixedly arranged at the junction of the tower cylinder body 4 and the surface of seawater.
In the present embodiment, the load absorbing device 3 includes an above-water portion disposed above the sea surface and an underwater portion disposed below the sea surface and submerged by the sea. Specifically, in the figure, the upper part of the wave and current 2 is the upper part of the load absorption device 3, and the lower part of the wave and current 2 is the lower part of the load absorption device 3.
In this embodiment, the load absorption device 3 includes a lower support 31, a damping ring 32, and an upper support 33, the lower support 31 is fixed to the outer wall of the tower body 4 below the surface of the seawater, the upper support 33 is fixed to the outer wall of the tower body 4 above the surface of the seawater, and the damping ring 32 is fixedly disposed between the lower support 31 and the upper support 33.
In this embodiment, the distance between the lower support 31 and the surface of the seawater is 3-4 m, and the distance between the upper support 33 and the surface of the seawater is 3-4 m.
In this embodiment, the damping ring 32 includes more than three layers of rubber pads, and the rubber pads are stacked to form the damping ring 32. Specifically, the damping ring 32 is formed by stacking and combining four rubber pads, namely a first rubber pad 321, a second rubber pad 322, a third rubber pad 323 and a fourth rubber pad 324.
In this embodiment, a plurality of damping through holes 3211 are uniformly formed in the surface of the rubber pad, and the damping through holes 3211 have the same size. Specifically, a plurality of damping through holes 3211 have all been seted up on the four layers of rubber pads, and damping through hole 3211 is the circular that the size equals, and damping through hole 3211's diameter is 50mm, and length is 100 mm.
In this embodiment, the minimum wall thickness between adjacent damping through holes 3211 is the radius of the damping through hole 3211, that is, 25 mm.
In this embodiment, the damping through holes 3211 on two adjacent layers of rubber pads are arranged in a staggered manner.
In this embodiment, the distance of the staggered damping through holes 3211 on two adjacent layers of rubber pads is the radius of the damping through holes 3211. Specifically, damping through holes 3211 on first layer rubber pad 321 and second layer rubber pad 322 have staggered the 25mm setting, and the mode of arranging of damping through holes 3211 of third layer rubber pad 323 is the same with first layer rubber pad 321, and consequently third layer rubber pad 323 has also staggered the 25mm setting with second layer rubber pad 322, and the mode of arranging of damping through holes 3211 of the same reason fourth layer rubber pad 324 is the same with second layer rubber pad 322, just so can guarantee the crisscross division that damping through holes 3211 between each layer of rubber pad can be abundant.
In this embodiment, the outer edge of the lower support 31 is provided with an upwardly extending bead, and the outer edge of the upper support 33 is provided with a downwardly extending bead.
The working principle of the embodiment is as follows: when wave and ocean current 2 impact the juncture of tower cylinder body 4 and sea water surface, because the existence of load absorbing device 3, load can not directly be transmitted for tower cylinder body 4, but act on damping ring 32 earlier, when the sea water staggers superimposed rubber pad through the multilayer, circular damping through-hole 3211 will absorb most of energy, the wave that is used in tower cylinder body 4 and ocean current 2's load will be showing and reduce, simultaneously because rubber has the high frequency and assaults the isolation function, the high frequency load that wave and ocean current 2 produced can be effectively isolated by damping ring 32, can not directly act on tower cylinder body 4, the effect of load reduction has been played.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an offshore wind turbine tower section of thick bamboo, includes tower cylinder body (4), the bottom of tower cylinder body (4) is fixed at seabed (1), its characterized in that: the outer wall surface of the tower cylinder body (4) is provided with a load absorption device (3) used for absorbing wave and ocean current (2) loads, and the load absorption device (3) is fixedly arranged at the junction of the tower cylinder body (4) and the surface of seawater.
2. The offshore wind turbine tower of claim 1, wherein: the load-absorbing device (3) comprises an above-water part arranged above the surface of the sea water and an under-water part arranged below the surface of the sea water and submerged by the sea water.
3. The offshore wind turbine tower of claim 1 or 2, wherein: load absorbing device (3) include undersetting (31), damping ring (32) and upper bracket (33), undersetting (31) are fixed and are located sea water surface below on the outer wall of tower cylinder body (4), upper bracket (33) are fixed and are located sea water surface top's tower cylinder body (4) outer wall on, damping ring (32) fixed set up in between undersetting (31) and upper bracket (33).
4. The offshore wind turbine tower of claim 3, wherein: the distance between the lower support (31) and the surface of the seawater is 3-4 m, and the distance between the upper support (33) and the surface of the seawater is 3-4 m.
5. The offshore wind turbine tower of claim 3, wherein: the damping ring (32) comprises more than three layers of rubber pads, and the rubber pads are mutually overlapped to form the damping ring (32).
6. The offshore wind turbine tower of claim 5, wherein: a plurality of damping through holes (3211) are uniformly formed in the surface of the rubber pad, and the damping through holes (3211) are the same in size.
7. The offshore wind turbine tower of claim 6, wherein: the wall thickness between the adjacent damping through holes (3211) is greater than or equal to the radius of the damping through holes (3211).
8. The offshore wind turbine tower of claim 6, wherein: the damping through holes (3211) on two adjacent layers of rubber pads are arranged in a staggered manner.
9. The offshore wind turbine tower of claim 8, wherein: the staggered distance of the damping through holes (3211) on two adjacent layers of rubber pads is the radius of the damping through holes (3211).
10. The offshore wind turbine tower of claim 3, wherein: the outer edge of the lower support (31) is provided with an upward extending protective edge, and the outer edge of the upper support (33) is provided with a downward extending protective edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517786.2U CN209743093U (en) | 2019-04-16 | 2019-04-16 | Offshore wind turbine tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517786.2U CN209743093U (en) | 2019-04-16 | 2019-04-16 | Offshore wind turbine tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743093U true CN209743093U (en) | 2019-12-06 |
Family
ID=68721126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920517786.2U Active CN209743093U (en) | 2019-04-16 | 2019-04-16 | Offshore wind turbine tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195954A (en) * | 2021-04-10 | 2022-10-18 | 海洋石油工程股份有限公司 | Damping device with symmetrical open pore form |
| CN116696689A (en) * | 2023-07-12 | 2023-09-05 | 山东大学 | Underwater tower noise reduction device for offshore wind turbine and underwater tower |
-
2019
- 2019-04-16 CN CN201920517786.2U patent/CN209743093U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195954A (en) * | 2021-04-10 | 2022-10-18 | 海洋石油工程股份有限公司 | Damping device with symmetrical open pore form |
| CN116696689A (en) * | 2023-07-12 | 2023-09-05 | 山东大学 | Underwater tower noise reduction device for offshore wind turbine and underwater tower |
| CN116696689B (en) * | 2023-07-12 | 2024-01-26 | 山东大学 | Underwater tower noise reduction device for offshore wind turbine and underwater tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yiyang Aiyi Information Technology Co.,Ltd. Assignor: HUNAN INSTITUTE OF ENGINEERING Contract record no.: X2023980050675 Denomination of utility model: A type of offshore wind turbine tower Granted publication date: 20191206 License type: Common License Record date: 20231213 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yiyang Chuangxing Technology Co.,Ltd. Assignor: HUNAN INSTITUTE OF ENGINEERING Contract record no.: X2023980052753 Denomination of utility model: A type of offshore wind turbine tower Granted publication date: 20191206 License type: Common License Record date: 20231219 |
|
| EE01 | Entry into force of recordation of patent licensing contract |