CN114687949A - Multidirectional danger-avoiding, collision-preventing and damage-reducing device for offshore wind turbine - Google Patents
Multidirectional danger-avoiding, collision-preventing and damage-reducing device for offshore wind turbine Download PDFInfo
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- CN114687949A CN114687949A CN202210244738.7A CN202210244738A CN114687949A CN 114687949 A CN114687949 A CN 114687949A CN 202210244738 A CN202210244738 A CN 202210244738A CN 114687949 A CN114687949 A CN 114687949A
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- 239000011241 protective layer Substances 0.000 claims abstract description 32
- 230000006378 damage Effects 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 125000004122 cyclic group Chemical group 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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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
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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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
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a multi-azimuth risk-avoiding, collision-preventing and damage-reducing device for an offshore wind turbine, which comprises: the elliptical protective layer structure is sleeved with an annular rubber cushion, a shell is arranged between the annular rubber cushion and the elliptical protective layer structure, and the shell is fixedly connected to the elliptical protective layer structure; be provided with a plurality of detectors on oval inoxidizing coating structure terminal surface, cyclic annular rubber cushion one end is provided with the extension section that extends oval inoxidizing coating structure and keep away from a detector terminal surface, the extension section is matchd and is had the driving piece. According to the invention, the anti-collision and loss-reduction device has excellent anti-collision and loss-reduction effects, avoids the occurrence of forward collision, reduces the harm of side collision and improves the protection performance of the anti-collision device.
Description
Technical Field
The invention relates to the technical field of offshore wind turbines, in particular to a multidirectional danger-avoiding, collision-preventing and damage-reducing device for an offshore wind turbine.
Background
The wind energy resource is a renewable resource which is widely distributed and has no pollution, and offshore wind power has wide development space as the prejudice of the wind power field, and is an important ring in new energy strategy.
The offshore wind turbine with the slender flexible structure concentrated with large mass is easy to collapse if collision happens, and the large-mass structure at the top (blades, engine room and the like) is inclined to collide with a ship body under the action of various forces, so that disastrous results are caused. In view of the huge structure size of the offshore wind turbine and the ship, the inability of adopting entity to carry out experiments, high cost and the inability of realizing technical conditions, the nonlinear finite element numerical simulation technology is widely applied in the field of ship-wind turbine collision.
In the prior art, a protection device is designed to adopt a gravity and buoyancy self-balancing combined structure form, and a protection facility can vertically move along the foundation of a wind turbine along with water level. The protection device is used for balancing the floating body structure design by self weight so as to deal with the phenomenon that the height range of the wind turbine is greatly fluctuated due to the change of water level caused by tide and tide. The application of the wind turbine is mainly oriented to the single-pile foundation type offshore wind turbine in the area with large tide level change, and no key consideration is given to reducing collision damage. The method is characterized in that a single-pile foundation type offshore wind turbine is researched to be collided by ships, forward collision with the largest damage of the wind turbine is simulated, and the damage condition of the wind turbine is researched under two different working conditions of not arranging an anti-collision device and arranging the anti-collision device. The research shows that: the protection device is additionally arranged, so that the maximum impact force can be reduced, the maximum stress borne by the pile foundation can be reduced, and the plastic deformation area of the pile foundation can be effectively reduced. According to the technical scheme, only the damage characteristic of the wind turbine under forward collision is considered, and the influence of lateral collision on the structure of the wind turbine is ignored.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the multi-azimuth risk-avoiding, collision-preventing and damage-reducing device for the offshore wind turbine, which has an excellent collision-preventing and damage-reducing effect, avoids the occurrence of forward collision, reduces the harm of side collision and improves the protective performance of the collision-preventing device. To achieve the above objects and other advantages in accordance with the present invention, there is provided a multi-directional risk avoiding, collision preventing and damage reducing apparatus for an offshore wind turbine, comprising:
the rubber protective cover comprises an oval protective layer structure and an annular rubber cushion sleeved in the oval protective layer structure, wherein a shell is arranged between the annular rubber cushion and the oval protective layer structure, and the shell is fixedly connected to the oval protective layer structure;
be provided with a plurality of detectors on oval inoxidizing coating structure terminal surface, cyclic annular rubber cushion one end is provided with the extension section that extends oval inoxidizing coating structure and keep away from a detector terminal surface, the extension section is matchd and is had the driving piece.
Preferably, the oval protective layer structure comprises a plurality of oval protective rings, the oval protective rings are stacked, and every two oval protective rings are arranged at intervals.
Preferably, a plurality of oval guard rings are fixedly connected through connecting rods, the connecting rods comprise two main connecting rods which are oppositely arranged, and a plurality of auxiliary connecting rods are arranged between the two main connecting rods.
Preferably, the main connecting rod and the auxiliary connecting rod are symmetrically arranged on the oval protective layer structure in a regular octagon shape.
Preferably, a detector is arranged between every two connecting rods, and the detector is positioned on the oval protective layer structure and symmetrically arranged in a regular octagon shape.
Preferably, the material of the elliptical protective layer structure is foamed aluminum material.
Compared with the prior art, the invention has the beneficial effects that:
(1) adopt the anticollision layer of oval structure, can prevent effectively that protector from producing stress concentration phenomenon, have good crashproof loss reduction effect, the rubber cushion is laid to the anticollision layer inside, prevents that inoxidizing coating and wind energy conversion system direct contact from taking place incessant striking, and the cumulative effect of production leads to the wind energy conversion system to appear stress concentration, fatigue damage to cause the wind energy conversion system to damage.
(2) The anti-collision device is provided with the rotating device, so that a lateral force is provided for a ship to be collided when the ship is collided, and the forward collision is avoided. Meanwhile, the harm of side collision is reduced.
(3) Set up the detector on the anticollision layer for detect the direction and the speed of striking boats and ships, thereby improve buffer stop's barrier propterty.
Drawings
FIG. 1 is a plan structure view of a multi-azimuth risk avoiding, collision preventing and damage reducing device of an offshore wind turbine according to the invention;
FIG. 2 is a schematic diagram of the detection position of a detector of the multi-azimuth risk-avoiding collision-preventing and loss-reducing device for the offshore wind turbine according to the invention;
FIG. 3 is a contact force comparison diagram of an offshore wind turbine without a protection device, a fixed elliptical protection device and a rotating elliptical protection device of the offshore wind turbine multi-azimuth risk avoiding, collision preventing and damage reducing device according to the invention;
FIG. 4 is a diagram showing a comparison of the displacement of the tower top corresponding to the multi-azimuth risk-avoiding, collision-preventing and damage-reducing device for the offshore wind turbine according to the present invention;
FIG. 5 is a top view of a protective layer of the multi-azimuth risk avoiding, collision preventing and damage reducing device for the offshore wind turbine according to the invention;
FIG. 6 is a schematic three-dimensional structure diagram of the multi-azimuth risk avoiding, collision preventing and damage reducing device for the offshore wind turbine according to the invention;
FIG. 7 is a schematic view of a ship forward collision protection device of the multi-azimuth risk avoiding, collision preventing and damage reducing device of the offshore wind turbine according to the invention;
FIG. 8 is an exploded view of the ship speed after the protection device of the multi-azimuth risk-avoiding, collision-preventing and damage-reducing device for the offshore wind turbine according to the invention acts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a multi-azimuth risk-avoiding, collision-preventing and damage-reducing device for an offshore wind turbine comprises: the protective structure comprises an oval protective layer structure 1 and an annular rubber cushion 2 sleeved in the oval protective layer structure 1, wherein a shell is arranged between the annular rubber cushion 2 and the oval protective layer structure 1, and the shell is fixedly connected to the oval protective layer structure 1;
be provided with a plurality of detectors 3 on the 1 terminal surface of oval inoxidizing coating structure, 2 one ends of cyclic annular rubber cushion are provided with the extension section that extends oval inoxidizing coating structure 1 and keep away from 3 terminal surfaces of detector, the extension section is matchd there is the driving piece, and the driving piece is the motor, makes buffer stop produce rotatoryly through the driving piece, gives a yawing force of striking ship, prevents to take place forward striking, and the rubber material of cyclic annular rubber cushion 2, rubber have buffering cushioning effect, are suitable for as crashproof equipment in order to reduce the wind turbine damage. In addition, this characteristic of high elasticity makes rubber can convert the collision energy into elastic energy to reach the effect of protection wind energy conversion machine, the ellipse of oval inoxidizing coating structure 1 sets up no stress concentration point, and the atress condition is better, allows to apply bigger external load, compares with circular structure, and is better to the side direction effect of hitting the ship, prevents that forward collision ability is stronger, and anticollision loss reduction effect is more excellent.
The detection range of the detector 3 is shown in fig. 2, and the dotted line portion is the detection range of the detector. The detector may detect the speed and direction of the vessel from multiple directions as the vessel navigates to the dashed range. The computer system can judge whether collision risks exist according to the detection signals and control the rotation of the protection device according to the signals.
Further, oval inoxidizing coating structure 1 includes a plurality of oval guard rings, and a plurality of oval guard rings range upon range of setting, and interval setting between per two oval guard rings.
Further, through connecting rod fixed connection between a plurality of oval guard rings, and the connecting rod is including setting up two main connecting rods 4 relatively, is provided with a plurality of vice connecting rods 5 between two main connecting rods 4, and main connecting rod 4 is located oval protective layer structure 1 with vice connecting rod 5 and is regular octagon symmetry setting, is provided with detector 3 between per two connecting rods, just detector 3 is located oval protective layer structure 1 and is regular octagon symmetry setting, and the connecting rod is distributed according to regular octagon with detector 3 the two, and its center is the regular octagon summit promptly, ensures that the connecting rod is firmly connected the inoxidizing coating, then ensures the diversified real-time detection ability of detector again, has avoided leading to uneven because of device space distribution, causes the mass distribution, makes the moment of deflection unbalanced when rotatory, damages protector.
The protective layer is arranged as shown in figure 5, r is the inner diameter of the soft cushion, r1The outer diameter of the soft pad is the center of each detector on the protective layer and the circle center of the connecting rod main rod are coincided with the vertex of the regular octagon, and then the small connecting rod is arranged on the outer ring of the main rod according to the same method. The regular octagon adopts the method of circumscribed circle, the center of the circumscribed circle coincides with the center of the protective device, namely the center O of the circle in the drawing, and the radius r of the circumscribed circle coincides with the center of the protective device2The distance from the circle center O to the midpoint of the protective layer.
Furthermore, the material of the elliptical protective layer structure 1 is a foamed aluminum material, and the material has good bending resistance, high damping and shock absorption performance and better impact energy absorption rate. Meanwhile, the multi-azimuth risk-avoiding, collision-preventing and damage-reducing device is convenient to operate, assemble and maintain due to the characteristics of light weight, easiness in processing and easiness in installation.
The forward impact of the ship is shown in fig. 7, at this time, the impact force borne by the wind turbine is the largest, the damage condition is the most serious, and secondary damage is most easily caused. As shown in fig. 8, when the fender is rotated to act, the impacting ship is acted by an x-direction force, so that the ship deflects, and the forward impact is changed into the side impact.
The number of devices and the scale of the processes described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides an offshore wind turbine diversified danger avoiding anticollision subtracts decreases device which characterized in that includes:
the protective structure comprises an oval protective layer structure (1) and an annular rubber cushion (2) sleeved in the oval protective layer structure (1), wherein a shell is arranged between the annular rubber cushion (2) and the oval protective layer structure (1), and the shell is fixedly connected to the oval protective layer structure (1);
a plurality of detectors (3) are arranged on one end face of the oval protective layer structure (1), one end of the annular rubber cushion (2) is provided with an extension section which extends out of the oval protective layer structure (1) and is far away from one end face of each detector (3), and the extension section is matched with a driving piece.
2. The multi-azimuth risk-avoiding, collision-preventing and damage-reducing device of the offshore wind turbine as claimed in claim 1, wherein the elliptical protective layer structure (1) comprises a plurality of elliptical protective rings, the elliptical protective rings are stacked, and every two elliptical protective rings are arranged at intervals.
3. The multi-directional risk avoiding, collision avoiding and damage reducing device of the offshore wind turbine as claimed in claim 2, wherein the plurality of oval guard rings are fixedly connected through connecting rods, the connecting rods comprise two main connecting rods (4) which are oppositely arranged, and a plurality of auxiliary connecting rods (5) are arranged between the two main connecting rods (4).
4. The multi-azimuth risk-avoiding, collision-preventing and damage-reducing device of the offshore wind turbine as claimed in claim 3, wherein the main connecting rods (4) and the auxiliary connecting rods (5) are symmetrically arranged in a regular octagon shape on the oval protective layer structure (1).
5. The multi-directional risk avoiding, collision avoiding and damage reducing device of the offshore wind turbine as claimed in claim 4, wherein a detector (3) is arranged between every two connecting rods, and the detectors (3) are symmetrically arranged in a regular octagon shape on the oval protective layer structure (1).
6. The multi-directional risk avoiding, collision avoiding and damage reducing device of the offshore wind turbine as claimed in claim 1, wherein the material of the elliptical protective layer structure (1) is foamed aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210244738.7A CN114687949A (en) | 2022-03-14 | 2022-03-14 | Multidirectional danger-avoiding, collision-preventing and damage-reducing device for offshore wind turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210244738.7A CN114687949A (en) | 2022-03-14 | 2022-03-14 | Multidirectional danger-avoiding, collision-preventing and damage-reducing device for offshore wind turbine |
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| CN114687949A true CN114687949A (en) | 2022-07-01 |
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| CN202210244738.7A Pending CN114687949A (en) | 2022-03-14 | 2022-03-14 | Multidirectional danger-avoiding, collision-preventing and damage-reducing device for offshore wind turbine |
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|---|---|---|---|---|
| US4657440A (en) * | 1984-12-21 | 1987-04-14 | Lin Juei Jse | Fender |
| JPH05280059A (en) * | 1992-03-30 | 1993-10-26 | Sumitomo Heavy Ind Ltd | Buffer work for caisson |
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2022
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