CN216156652U - Offshore wind power foundation with turbulence net - Google Patents

Offshore wind power foundation with turbulence net Download PDF

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Publication number
CN216156652U
CN216156652U CN202122251534.XU CN202122251534U CN216156652U CN 216156652 U CN216156652 U CN 216156652U CN 202122251534 U CN202122251534 U CN 202122251534U CN 216156652 U CN216156652 U CN 216156652U
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China
Prior art keywords
spoiler
offshore wind
network
turbulence
strips
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CN202122251534.XU
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Chinese (zh)
Inventor
邱旭
郭雨桐
闫姝
姚晖
吴凯
姜东�
吴昶剑
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Huaneng Power International Jiangsu Energy Development Co Ltd
Huaneng Clean Energy Research Institute
Clean Energy Branch of Huaneng International Power Jiangsu Energy Development Co Ltd Clean Energy Branch
Shengdong Rudong Offshore Wind Power Co Ltd
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Huaneng Power International Jiangsu Energy Development Co Ltd
Huaneng Clean Energy Research Institute
Clean Energy Branch of Huaneng International Power Jiangsu Energy Development Co Ltd Clean Energy Branch
Shengdong Rudong Offshore Wind Power Co Ltd
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Priority to CN202122251534.XU priority Critical patent/CN216156652U/en
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Abstract

The utility model provides an offshore wind power foundation with a turbulence net, which comprises a pile foundation and the turbulence net, wherein the pile foundation comprises a first part and a second part which are mutually connected in the length direction of the pile foundation, the second part is embedded in a seabed, the seabed is provided with a seabed surface, the first part is positioned above the seabed surface, the turbulence net is at least arranged on the first part, the turbulence net protrudes outwards from the peripheral surface of the first part, the turbulence net is a net-shaped structure which coats at least one part of the peripheral surface of the first part, the outer diameter of the first part is D, and the area of the peripheral surface of the first part coated by the turbulence net is more than or equal to 1.0 pi D2The offshore wind power foundation with the turbulence net has the advantages of simple structure, high practicability, long service life and the like.

Description

Offshore wind power foundation with turbulence net
Technical Field
The utility model relates to the field of offshore wind power, in particular to an offshore wind power foundation with a current disturbing network.
Background
Wind energy is increasingly regarded by human beings as a clean and harmless renewable energy source. Compared with land wind energy, offshore wind energy resources not only have higher wind speed, but also are far away from a coastline, are not influenced by a noise limit value, and allow the unit to be manufactured in a larger scale.
In the related technology, the offshore wind power foundation is the key point for supporting the whole offshore wind power machine, the cost accounts for 20-25% of the investment of the whole offshore wind power, and most accidents of offshore wind power generators are caused by unstable pile foundation. Due to the action of waves and tide, silt around the offshore wind power pile foundation can be flushed and form a flushing pit, and the flushing pit can influence the stability of the pile foundation. In addition, the water flow mixed with silt near the surface of the seabed continuously washes the pile foundation, corrodes and destroys the surface of the pile foundation, and can cause the collapse of the offshore wind turbine unit in serious cases. The anti-scouring device of the currently adopted offshore wind power pile foundation is mainly a riprap protection method. However, the integrity of the riprap protection is poor, and the maintenance cost and the workload in the application process are large.
SUMMERY OF THE UTILITY MODEL
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
due to the action of sea waves and tides, a phenomenon of scouring pits occurs around the foundation of the offshore wind power pile. The scouring phenomenon is a complex coupling process involving the interaction of water flow, sediment and structures. The main reason of causing the scouring is horseshoe-shaped vortex generated around the pile foundation, the horseshoe-shaped vortex is generated due to the obstruction of the pile foundation when seawater flows, when the sea water flows towards the pile foundation, the wave current presents a downward rolling and excavating vortex structure, the vortex structure lifts up the sediment on the seabed, and further brings the sediment away from the place around the pile foundation, a scouring pit is formed, the depth of the pile foundation is shallow due to the formation of the scouring pit, the vibration frequency of a cylinder is reduced, the pile foundation is over-fatigue is caused slightly, and the fracture accident is caused seriously.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the utility model provides an offshore wind power foundation with a turbulence network, which has good anti-scouring performance.
The offshore wind power foundation with the current disturbing network comprises a pile foundation, wherein the pile foundation comprises a first part and a second part which are connected with each other in the length direction of the pile foundation, the second part is buried in a seabed, the seabed is provided with a seabed surface, and the first part is positioned above the seabed surface; the turbulence net is at least arranged on the first part and protrudes outwards from the outer peripheral surface of the first part, the turbulence net is a net structure for coating at least one part of the outer peripheral surface of the first part, the outer diameter of the first part is D, and the area of the outer peripheral surface of the first part coated by the turbulence net is more than or equal to 1.0 pi D2
According to the offshore wind power foundation with the turbulence net, the turbulence net is arranged on the pile foundation, so that a rapid flow or a main flow in seawater is converted into a uniform slow flow, the impact of the seawater on the surface of the pile foundation is reduced, the formation of a horseshoe vortex is inhibited, and the offshore wind power foundation with the turbulence net has good erosion resistance.
In some embodiments, the turbulence network is annular and disposed around the first portion.
In some embodiments, the spoiler network is formed by a number of spoiler strips crossing each other.
In some embodiments, the spoiler network is formed by intersecting a first spiral spoiler strip and a second spiral spoiler strip which spirally surround the first portion, or the spoiler network is formed by intersecting a plurality of first spoiler strips which are parallel to each other and a plurality of second spoiler strips which are parallel to each other, and the first spoiler strips are annular arranged around the first portion.
In some embodiments, the spoiler network is formed by intersecting a plurality of the first helical spoiler strips parallel to each other and a plurality of the second helical spoiler strips parallel to each other.
In some embodiments, the density of the turbulators increases in a direction proximate the surface of the ocean floor.
In some embodiments, the outer circumferential surface of the first portion includes a front surface facing the direction of the tidal current, a back surface opposite to the front surface, and two side surfaces, and a distance between adjacent spoiler strips distributed on the front surface and the back surface is smaller than a distance between adjacent spoiler strips distributed on the two side surfaces.
In some embodiments, the turbulence grid is also disposed on the second portion.
In some embodiments, the offshore wind power foundation with the spoiler network comprises a pile foundation and the spoiler network comprises a connecting part, the spoiler network is connected with the first part through the connecting part, and the projection area of the connecting part on the outer peripheral surface of the first part is smaller than the projection area of the spoiler network on the outer peripheral surface of the first part.
In some embodiments, a dimension of the turbulence network in a length direction of the first portion is greater than or equal to 1.0D.
Drawings
FIG. 1 is a schematic illustration of an offshore wind power foundation with a current-disturbing grid according to an embodiment of the utility model.
FIG. 2 is a schematic view of an offshore wind power foundation with a current-disturbing grid according to another embodiment of the utility model.
Reference numerals:
an offshore wind power foundation 100 with a current-disturbing grid;
pile foundations 1; a first portion 11; a second portion 12; a current disturbing network 2; a first helical spoiler 21; a second helical spoiler 22; a first spoiler strip 23; a second spoiler strip 24.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
An offshore wind power foundation with a current disturbing grid 2 according to an embodiment of the utility model is described below with reference to fig. 1-2, comprising a pile foundation 1 and a current disturbing grid 2.
The pile foundation 1 comprises a first part 11 and a second part 12 connected to each other in its length direction (up and down as shown in fig. 1), the second part 12 being buried in the seabed, the seabed having a seabed surface, the first part 11 being located above the seabed surface. As will be appreciated by those skilled in the art, the conventional pile foundations 1 are all hollow cylindrical structures.
The spoiler 2 is at least arranged on the first portion 11, the spoiler 2 protrudes from the outer circumferential surface of the first portion 11 along a first direction, the first direction is orthogonal to the length direction of the pile foundation 1 (for example, the first direction may be the radial direction of the pile foundation 1, or the first direction may be the horizontal direction), the spoiler 2 is a net-shaped structure covering at least a part of the outer circumferential surface of the first portion 11, the outer diameter of the first portion 11 is D, and the area of the outer circumferential surface of the first portion 11 covered by the spoiler 2 is greater than or equal to 1.0 pi D2
Specifically, as shown in fig. 1-2, at least the first part 11 is provided with a spoiler 2, the spoiler 2 is arranged on the peripheral wall of the first part 11 and extends outwards along the radial direction of the pile foundation 1, the outer diameter of the first part 11 is any one of 5m-8m, and the area of the outer peripheral surface of the first part 11 covered by the spoiler 2 is greater than or equal to 1.0 pi D2,The circumference of the outer circumferential surface of the first portion 11 covered by the spoiler 2 is greater than or equal to 2D +2 pi D, for example: and D is 6m, the area of the outer peripheral surface of the first part 11 coated by the spoiler 2 is 36 pi, and the perimeter of the outer peripheral surface of the first part 11 coated by the spoiler 2 is 12+12 pi.
According to the offshore wind power foundation 100 with the spoiler 2 provided by the embodiment of the utility model, the spoiler 2 is at least arranged on the first part 11, and the spoiler 2 protrudes from the outer circumferential surface of the first part 11 along the first direction. Therefore, when the tidal current contacts the turbulence network 2, the protruded turbulence network 2 can 'break up' the tidal current, the flow speed and the direction of the tidal current are locally changed, the energy of the tidal current can be dissipated to a certain degree, the stopping resistance of the pile foundation 1 to the tidal current is reduced, and a large horseshoe-shaped vortex cannot be generated in front of the pile foundation 1, so that the formation of the horseshoe-shaped vortex is restrained from the source, and the service life of the pile foundation 1 is prolonged. That is to say, the arrangement of the protruded turbulence nets 2 has the effects of energy dissipation and impact reduction, inhibits the formation of horseshoe-shaped vortexes near the pile foundation 1, effectively protects the soil around the pile foundation 1 and avoids the formation of scouring pits.
In some embodiments, the spoiler 2 is more preferably arranged on a part of the first portion 11 close to the seabed surface, or the spoiler 2 is arranged at least on a part of the first portion 11 close to the seabed surface, which can better achieve an anti-scour effect. The formation of the scour pit is mainly formed by the horseshoe vortex moving downwards along the length direction of the pile foundation 1 to roll up the sediment on the seabed near the pile foundation 1. Therefore, by providing the turbulence net 2 in the portion of the first section 11 close to the sea bed surface, it is possible to prevent the horseshoe vortices formed in the vicinity of the portion from moving downward and reaching the sea bed surface.
As an example, as shown in fig. 1, the flow disturbance net 2 is provided on a portion of the first section 11 near the surface of the sea bed, and the flow disturbance net 2 is not provided on a portion of the first section 11 above the portion. When the tidal current flows around the pile foundation 1 without the current disturbing network 2, a horseshoe vortex may be formed around the pile foundation 1 due to the obstruction of the pile foundation 1, and the horseshoe vortex may develop downward along the outer peripheral surface of the pile foundation 1 and strike the seabed. When the horseshoe vortex arrives at the part provided with the vortex net 2, the vortex net 2 can actively disturb the vortex, dissipate the energy of the vortex, so that the energy of the horseshoe vortex can be dissipated before reaching the sea bed surface, or the vortex net 2 can divide the horseshoe vortex into a plurality of small vortices, the energy of the small vortices is small, the flow speed is slow, the impact force on the sea bed surface is greatly reduced, and therefore the possibility of forming a scouring pit can be greatly reduced.
In some embodiments, the spoiler network 2 is annular and arranged around the first portion 11. Therefore, the spoiler network 2 is annularly surrounded on the outer peripheral surface of the first part 11, so that the spoiler network 2 can play a role in reducing impact on the tidal current in any direction, and the spoiler network 2 is more reasonable in arrangement.
In some embodiments, the spoiler 2 is formed by a number of spoiler strips crossing each other. Therefore, the turbulence net 2 can form a net structure by the crossing arrangement of a plurality of turbulence strips.
In some embodiments, the spoiler 2 is formed by intersecting a first spiral spoiler strip 21 and a second spiral spoiler strip 22 spirally surrounding the first portion 11, or the spoiler 2 is formed by intersecting a plurality of first spoiler strips 23 parallel to each other and a plurality of second spoiler strips 24 parallel to each other, and the first spoiler strips 23 are annular arranged around the first portion 11.
In particular, there are various arrangements of the spoiler 2, such as: as shown in fig. 1, first spiral vortex strip 21 and second spiral vortex strip 22 are established at the outer peripheral face of first portion 11, and first spiral vortex strip 21 and second vortex strip 24 are alternately set up at the outer peripheral face of first portion 11, or as shown in fig. 2, first vortex strip 23 encircles on the outer peripheral face of first portion 11, and a plurality of first vortex strips 23 are established at first portion 11 along upper and lower direction interval, a plurality of second vortex strips 24 are established at the outer peripheral face of first portion 11 and are set up around the circumference interval of first portion 11, and second vortex strip 24 extends and intersects with each first vortex strip 23 along upper and lower direction, a plurality of first vortex strips 23 and a plurality of second vortex strips 24 mutually support and form vortex net 2.
In some embodiments, the spoiler 2 is formed by intersecting a plurality of first helical spoiler strips 21 parallel to each other and a plurality of second helical spoiler strips 22 parallel to each other. Specifically, as shown in fig. 1, a plurality of first spiral spoiler strips 21 and a plurality of second spiral spoiler strips 22 are provided on an outer circumferential surface of the first portion 11. The first spiral turbulence strips 21 are parallel to each other and arranged at intervals around the circumference of the first part 11, and the second spiral turbulence strips 22 are parallel to each other and arranged at intervals around the circumference of the first part 11.
The upper ends of the first spiral turbulence strips 21 and the upper ends of the second spiral turbulence strips 22 are parallel and level to each other in the up-down direction, the lower ends of the first spiral turbulence strips 21 and the lower ends of the second spiral turbulence strips 22 are parallel and level to each other in the up-down direction, that is, the upper ends of the first spiral turbulence strips 21 and the upper ends of the second spiral turbulence strips 22 are equal to the distance between the upper ends and the sea level in the up-down direction, and the lower ends of the first spiral turbulence strips 21 and the lower ends of the second spiral turbulence strips 22 are equal to the distance between the upper ends and the sea level in the up-down direction. The upper end of each first spiral vortex strip 21 is intersected with the upper end of one of the second spiral vortex strips 22, and the lower end of each first spiral vortex strip 21 is also intersected with the lower end of one of the second spiral vortex strips 22. The spoiler network 2 formed by the first spiral spoiler strips 21 and the second spiral spoiler strips 22 in a crossed mode surrounds the first portion 11, and the energy dissipation and impact reduction efficiency of the spoiler network 2 is guaranteed.
It is understood that in some embodiments, there may be one first helical spoiler 21 and one second helical spoiler 22. The first spiral spoiler strip 21 and the second spiral spoiler strip 22 both spirally surround the first portion 11, and the first spiral spoiler strip 21 and the second spiral spoiler strip 22 have a plurality of intersection points, thereby forming the spoiler network 2 around the first portion 11.
Since the position of the first section 11 closer to the surface of the sea bed is more likely to receive tidal current impact, the probability of horseshoe vortices being generated is also higher. Thus, to better address the situation, in some embodiments, the density of turbulators increases in a direction closer to the surface of the ocean bed. Specifically, the density of the spoiler strips is increased by increasing the number of the spoiler strips or reducing the space between adjacent spoiler strips. The density of vortex strip increases to the direction that is close to the sea bed face to the scour protection ability and the practicality of marine wind power basis have been improved.
In some embodiments, the first spoiler 23 surrounds the pile foundation 1, the second spoiler 24 extends along the length direction (up and down direction as shown in fig. 1) of the pile foundation 1, the spoiler 2 surrounds a plurality of spoiler areas near the pile foundation 1, and the projected areas of the spoiler areas on the circumferential surface of the pile foundation 1 decrease toward the sea bed surface. Specifically, the interval between first vortex strip 23 and the second vortex strip 24 that is close to the sea bed face reduces to make first vortex strip 23 and second vortex strip 24 be close to the density increase of sea bed face, make the setting of vortex net 2 more reasonable.
In many sea areas, the direction of the current is not uniform, for example: tidal currents in some sea areas flow east and west throughout the year, with north and south flow rarely occurring. When the pile foundation 1 is subjected to the tide of the flow of things, the sea beds on the east and west sides of the pile foundation 1 are most likely to generate large scour pits, while the sea beds on the south and north sides generate smaller scour pits.
In order to reduce the manufacturing cost and reduce the manufacturing difficulty of the offshore wind power foundation under the condition of having a strong enough anti-scouring capability, in some embodiments, the outer peripheral surface of the first part 11 comprises a front surface facing the tidal current direction, a back surface opposite to the front surface and two side surfaces, dense spoiler networks 2 are arranged on the front surface and the back surface of the first part 11, and sparse spoiler networks 2 are arranged on two sides of the first part 11.
In particular, defining the front side as facing the direction of the flow, the side as facing away from the direction of the flow, and the side connected to the front and back sides as the side (for example: the flow is in east-west flow, and the flow flowing in north-south is less likely to occur, the east side of the first portion 11 is the front side, the west side of the first portion 11 is the back side, or the west side of the first portion 11 is the front side, the east side of the first portion 11 is the back side, and the north-south side of the first portion 11 is the side), the distance between the second spoiler strips 24 provided on the front and back sides of the first portion 11 is smaller than the distance between the second spoiler strips 24 provided on both sides of the first portion 11, so that the spoiler networks 2 provided on the front and back sides of the first portion 11 are denser than the spoiler networks 2 provided on both sides of the first portion 11. Therefore, the offshore wind power foundation can have strong anti-scouring capacity, the manufacturing cost can be reduced, and the manufacturing difficulty is reduced.
In some embodiments, the spoiler 2 is also arranged on the second portion 12. I.e. the second section 12, is also provided with a turbulence grid 2. Optionally, the turbulence net 2 on the second section 12 is positioned near the surface of the sea bed in the second section 12. Even if the scouring pit is formed on the sea bed surface near the offshore wind power foundation, the second part 12 originally positioned below the sea bed surface is exposed due to the formation of the scouring pit, the scouring effect can be effectively reduced by the turbulence net 2 arranged on the second part 12, the scouring pit is prevented from continuing to extend downwards, and the scouring prevention performance of the offshore wind power foundation is enhanced.
In some embodiments, the offshore wind power foundation 100 with the spoiler network 2 comprises a connecting portion (not shown in the figures), the spoiler network 2 being connected to the first section 11 by the connecting portion, a projected area of the connecting portion on an outer circumferential surface of the first section 11 being smaller than a projected area of the spoiler network 2 on the outer circumferential surface of the first section 11. Specifically, the outer peripheral surface of the first connecting part is provided with a plurality of connecting parts, the spoiler 2 is connected with the first part 11 through the connecting parts, so that the spoiler 2 is convenient to mount on the first part 11, and the projection area of the connecting parts on the outer peripheral surface of the first part 11 is smaller than that of the spoiler 2 on the outer peripheral surface of the first part 11. For example, when installing turbulence net 2 on the first portion, can connect connecting portion on first portion 11 earlier, link to each other turbulence net 2 with connecting portion again to can reduce the connecting point on the first portion 11, ensure the structural strength of pile foundation, still improve turbulence net 2's installation effectiveness.
In some embodiments, the dimension of the spoiler 2 in the length direction (up-down direction, as shown in fig. 1) of the first portion 11 is equal to or greater than 1.0D, and the end of the spoiler 2 away from the sea level in the length direction (up-down direction, as shown in fig. 1) is at a distance of equal to or greater than 1.0D from the sea level in the length direction.
Specifically, the size of the spoiler network 2 on the first portion 11 in the vertical direction is greater than or equal to 1.0D, the distance between the upper end of the spoiler network 2 and the sea level is greater than or equal to 1.0D, D may be any value from 5m to 8m, for example, D is 6m, then the size of the spoiler network 2 on the first portion 11 in the vertical direction is equal to 6m, and the distance between the upper end of the spoiler network 2 and the sea level is equal to 6 m.
The spoiler network 2 is protruded from the outer peripheral surface of the first part along the first direction, the height of the spoiler network 2 is defined by the size of the spoiler network 2 in the first direction, in some embodiments, the spoiler network 2 can also have different heights, the irregularity of the spoiler network 2 is increased by the arrangement, the offshore wind power foundation can deal with the tide with various energy gradients and the horseshoe vortex, the adaptability of the offshore wind power foundation is enhanced, the energy dissipation and impact reduction effects of the spoiler network 2 are further enhanced, and the anti-scouring capability of the offshore wind power foundation is enhanced.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An offshore wind power foundation with a current disturbing network is characterized in that,
a pile foundation including a first portion and a second portion interconnected in a length direction thereof, the second portion being buried in a seabed, the seabed having a seabed surface, the first portion being located above the seabed surface;
the turbulence net is at least arranged on the first part and protrudes outwards from the outer peripheral surface of the first part, the turbulence net is a net structure for coating at least one part of the outer peripheral surface of the first part, the outer diameter of the first part is D, and the area of the outer peripheral surface of the first part coated by the turbulence net is more than or equal to 1.0 pi D2
2. Offshore wind farm according to claim 1, characterized in that the spoiler network is ring-shaped and arranged around the first part.
3. Offshore wind farm with a spoiler network according to claim 1 or 2, characterized in that the spoiler network is formed by a number of spoiler strips crossing each other.
4. Offshore wind farm with turbulence grid according to claim 3,
the spoiler network is formed by intersecting a first helical spoiler and a second helical spoiler helically surrounding the first portion,
or, the spoiler network is formed by a plurality of first spoiler strips which are parallel to each other and a plurality of second spoiler strips which are parallel to each other in a crossed manner, and the first spoiler strips are annular arranged around the first part.
5. The offshore wind power foundation with the spoiler network according to claim 4, wherein the spoiler network is formed by intersecting a plurality of first helical spoiler strips parallel to each other and a plurality of second helical spoiler strips parallel to each other.
6. The offshore wind farm with a spoiler network according to claim 3, wherein the density of the spoiler strips increases towards the surface of the sea bed.
7. The offshore wind farm with a spoiler network according to claim 3, wherein the outer circumferential surface of the first part comprises a front side facing the direction of the current, a back side opposite to the front side and two side surfaces, wherein the distance between adjacent spoiler strips distributed over the front side and the back side is smaller than the distance between adjacent spoiler strips distributed over the two side surfaces.
8. Offshore wind farm with a turbulence grid according to claim 1, characterized in that the turbulence grid is also arranged on the second section.
9. The offshore wind power foundation with the current disturbing network according to claim 1, comprising a connecting portion through which the current disturbing network is connected to the first section, wherein a projected area of the connecting portion on the outer circumferential surface of the first section is smaller than a projected area of the current disturbing network on the outer circumferential surface of the first section.
10. Offshore wind farm with turbulence grid according to claim 1, characterized in that the size of the turbulence grid in the length direction of the first section is 1.0D or more.
CN202122251534.XU 2021-09-16 2021-09-16 Offshore wind power foundation with turbulence net Active CN216156652U (en)

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Application Number Priority Date Filing Date Title
CN202122251534.XU CN216156652U (en) 2021-09-16 2021-09-16 Offshore wind power foundation with turbulence net

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CN216156652U true CN216156652U (en) 2022-04-01

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