CN216515711U - Offshore wind power single pile foundation - Google Patents
Offshore wind power single pile foundation Download PDFInfo
- Publication number
- CN216515711U CN216515711U CN202122255203.3U CN202122255203U CN216515711U CN 216515711 U CN216515711 U CN 216515711U CN 202122255203 U CN202122255203 U CN 202122255203U CN 216515711 U CN216515711 U CN 216515711U
- Authority
- CN
- China
- Prior art keywords
- pile foundation
- offshore wind
- section
- wind power
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Wind Motors (AREA)
Abstract
The utility model discloses an offshore wind power single pile foundation which comprises a pile foundation, a tower drum and a fan, wherein the peripheral outline of the cross section of at least one part of the pile foundation is oval, the tower drum is installed at the top end of the pile foundation, the fan is installed at the top end of the tower drum, the fan comprises an impeller, and the extension direction of the rotation center line of the impeller is the same as the extension direction of the long axis of the oval. The offshore wind power single-pile foundation has the advantages of simple structure, stable pile foundation, long service life and the like.
Description
Technical Field
The utility model relates to the technical field of offshore wind power, in particular to an offshore wind power single pile foundation.
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.
The offshore wind power foundation is a key place for supporting the whole offshore wind power machine, the cost accounts for 20-25% of the investment of the whole offshore wind power, the offshore wind power foundation generally requires the service life of more than 20 years, but because a fan of the offshore wind power foundation needs to bear the wind force in the main wind direction, the force received by the fan is downwards transmitted to the pile foundation, the wind force borne by the pile foundation is much larger than the force of water flow waves, so that the problems that the pile foundation is unstable, the pile foundation inclines and is even knocked down are easily caused, and the service life of the offshore wind power foundation is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the utility model provides an offshore wind power single pile foundation which is stable in structure and strong in wind resistance.
According to the embodiment of the utility model, the offshore wind power single pile foundation comprises: a pile foundation, at least a portion of which has an elliptical peripheral profile in cross-section; the tower drum is connected with the pile foundation; the fan is connected with the tower drum and comprises an impeller, and the extending direction of the rotating center line of the impeller is the same as the extending direction of the long axis of the oval.
According to the offshore wind power single-pile foundation provided by the embodiment of the utility model, the stability of the offshore wind power single-pile foundation is improved through the arrangement of the foundation piles, the offshore wind power single-pile foundation is prevented from being inclined or rushed down due to the influence of the sea wind, and the service life of the offshore wind power single-pile foundation is prolonged.
In some embodiments, the pile foundation comprises a first part and a second part which are connected in the length direction, the first part is positioned above the second part, the central axes of the first part and the second part are on the same straight line, the outer peripheral contour of the cross section of the second part is an ellipse, the shape of the bottom end of the first part is matched with the shape of the top end of the second part, and the outer peripheral contour of the top end of the first part is a circle.
In some embodiments, the top end of the first portion has an outer diameter that is less than or equal to the short outer diameter of the bottom end of the first portion.
In some embodiments, the offshore wind power mono-pile foundation further comprises a flange connected to the top end of the first section, and the tower is connected to the first section through the flange.
In some embodiments, the first portion has a length of 5m to 30m and the second portion has a length of 10m to 150 m.
In some embodiments, the ratio of the length of the major axis to the length of the minor axis of the ellipse is greater than 1 and equal to or less than 5.
In some embodiments, the major axis of the ellipse is 5m-50m in length.
In some embodiments, the length of the minor axis of the ellipse is 1m-50 m.
In some embodiments, the offshore wind power single pile foundation further comprises a spoiler, wherein the spoiler is arranged on the pile foundation and protrudes outwards from the outer peripheral surface of the pile foundation.
In some embodiments, the offshore wind power single pile foundation further comprises a spoiler hole, which is arranged on the pile foundation and penetrates through the peripheral wall of the pile foundation.
Drawings
Fig. 1 is a schematic structural diagram of an offshore wind power single pile foundation according to an embodiment of the utility model.
FIG. 2 is a top view of an offshore wind power single pile foundation according to an embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a first part of an offshore wind power single pile foundation according to an embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a second part of an offshore wind power single pile foundation according to an embodiment of the utility model.
FIG. 5 is a top view of a second section of an offshore wind power single pile foundation according to an embodiment of the utility model.
Fig. 6 is a schematic structural diagram of a flange of an offshore wind power single pile foundation according to an embodiment of the utility model.
Reference numerals:
an offshore wind power single pile foundation 100;
pile foundations 1; a first portion 11; a second portion 12; a flange 13; a lifting lug 2.
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.
Referring now to fig. 1-6, an offshore wind power mono-pile foundation 100 according to an embodiment of the present invention is shown and described, comprising a pile foundation 1, a tower (not shown), and a wind turbine (not shown).
The outer circumferential contour of the cross section of at least a part of the pile foundation 1 is oval. As can be seen by those skilled in the art, the conventional pile foundations 1 are hollow cylindrical structures, and the sea bed surface is the interface between seawater and underwater sand. One part of the pile foundation 1 is positioned in the sea water above the sea bed surface, and the other part of the pile foundation 1 is buried in the sand below the sea bed surface, so that the pile foundation 1 is fixed on the sea.
The tower is installed on the top of pile foundation 1. Specifically, as shown in FIG. 1, a tower is provided above the foundation piles.
The fan is installed on the top of a tower section of thick bamboo, and the fan includes the impeller, and the extending direction of the rotatory central line of impeller is the same with the extending direction of oval major axis. Specifically, the extending direction of the rotation center line of the impeller is defined as the main wind direction, and the long axis of the pile foundation 1 extends in the main wind direction.
According to the offshore wind power single pile foundation 100 provided by the embodiment of the utility model, the peripheral outline of at least one part of the cross section of the pile foundation 1 is elliptical, and the elliptical cross section has a streamline shape, so that the impact action of fluid on the surface of the pile foundation can be more effectively reduced than that of a common circular cross section, the elliptical pile foundation 1 has stronger stability, can bear stronger impact force of sea wind, prevent the pile foundation 1 from inclining or falling under the impact force of the sea wind, and prolong the service life of the offshore wind power single pile foundation 100.
According to the offshore wind power single-pile foundation 100 provided by the embodiment of the utility model, the extending direction of the rotation center line of the impeller is the same as the extending direction of the long axis of the ellipse, so that the long axis of the ellipse is consistent with the main wind direction, the impact of the main wind direction on the pile foundation 1 can be reduced, and the stability of the pile foundation 1 is ensured.
In some embodiments, the pile foundation 1 includes a first portion 11 and a second portion 12 connected in the length direction (up and down direction as shown in fig. 1), the first portion 11 is located above the second portion 12, the central axes of the first portion and the second portion are on the same straight line, the outer peripheral contour of the cross section of the second portion 12 is an ellipse, the shape of the bottom end of the first portion 11 is matched with the shape of the top end of the second portion 12, and the outer peripheral contour of the top end of the first portion 11 is a circle.
Specifically, as shown in fig. 1 to 5, in a first portion 11 and a second portion 12 connected in the up-down direction of the pile foundation 1, the cross-sectional area of the first portion 11 is gradually reduced from bottom to top, the upper end surface of the first portion 11 is a circular surface, and the second portion 12 is an elliptic cylinder with a constant cross-section, so that not only is the stability of the pile foundation 1 ensured, but also convenience is provided for the installation of a fan, and the offshore wind power single pile foundation 100 is more reasonably set.
In some embodiments, as shown in fig. 1-2, the pile foundation 1 is provided with lifting lugs 2 on the outer periphery side, and the lifting lugs 2 are oppositely arranged at intervals in the fore-and-aft direction, so that the pile foundation 1 can be installed on the seabed through the lifting lugs 2.
In some embodiments, the outer diameter of the top end of the first portion 11 is less than or equal to the short outer diameter of the bottom end of the first portion 11. Specifically, as shown in fig. 1 to 3, the upper end surface of the first portion 11 is circular and the outer diameter thereof is smaller than or equal to the minor axis of the elliptical surface of the lower end surface of the first portion 11, so that the cross section of the first portion 11 is elliptical from bottom to top, and the major axis of the elliptical shape is gradually reduced, thereby reducing the difficulty in processing and manufacturing the first portion 11.
In some embodiments, offshore wind turbine mono-pile foundation 100 further comprises a flange 13, flange 13 being connected to the top end of first section 11, and the tower being connected to first section 11 via flange 13. Specifically, as shown in FIGS. 1-2 and 6, the first section 11 is provided at its upper end with a flange 13, and the tower is attached to the flange 13 by fasteners, thereby mounting the tower to the first section 11.
In some embodiments, the length of the first portion 11 is 5m to 30m, and the length of the second portion 12 is 10m to 150m, specifically, the length of the first portion 11 in the up-down direction is 5m to 30m, for example: the length of the first portion 11 may be any one of 5m, 10m, 15m, 20m, 25m, and 30m, and the length of the second portion 12 in the up-down direction is 10m to 150m, for example: the length of the second portion 12 is any one of 10m, 20m, 30m, 40m, 50m, 60m, 70m, 80m, 90m, 100m, 110m, 120m, 130m, 140m, and 150 m. The second part 12 can be stably arranged under the sea bed surface in a penetrating mode, and the situation that the second part 12 is too short to cause instable installation of the pile foundation 1 is avoided.
In some embodiments, the ratio of the length of the major axis of the ellipse to the length of the minor axis is greater than 1 and less than or equal to 5.
In some embodiments, the length of the major axis of the ellipse is 5m-50m, and in particular, the length of the major axis of the ellipse can be selected to be any value of 5m, 10m, 15m, 20m, 35m, 30m, 35m, 40m, 45m, and 50 m.
In some embodiments, the length of the minor axis of the ellipse is 1m-50 m-in particular, the length of the major axis of the ellipse can be chosen: specifically, the length of the minor axis of the ellipse may be any one of 1m, 5m, 10m, 15m, 20m, 35m, 30m, 35m, 40m, 45m, and 50 m.
In some embodiments, the offshore wind power mono-pile foundation 100 further includes a spoiler (not shown), which is provided on the pile foundation 1 and protrudes outward from the outer circumferential surface of the pile foundation 1. Specifically, the turbulence piece is arranged on the outer peripheral wall of the pile foundation 1 and extends outwards along the radial direction of the pile foundation 1, the foundation pile is arranged in the sea level, active turbulence can be performed on tidal current through the turbulence piece, 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 extent, the arrangement of the turbulence piece achieves the effects of energy dissipation and impact reduction, the formation of horseshoe-shaped vortexes near the pile foundation 1 is inhibited, the soil around the pile foundation 1 is effectively protected, and the formation of scouring pits is avoided. When the tidal current contacts the turbulence member, the turbulence member 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 is dissipated to a certain extent, 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.
In some embodiments, offshore wind power mono-pile foundation 100 further comprises a spoiler hole (not shown), which is provided on pile foundation 1 and extends through the circumferential wall of pile foundation 1. Specifically, the spoiler holes are provided on the circumferential wall of the pile foundation 1 and communicate the inner space and the outer space of the pile foundation 1. Therefore, when the tide rushes to the pile foundation 1 provided with the turbulence holes, the turbulence holes penetrate through the peripheral wall of the pile foundation 1, so that the tide can enter the pile foundation 1 through the turbulence holes, the stop resistance of the pile foundation 1 to the tide is reduced, the buffer effect is achieved, and the formation of horseshoe-shaped vortexes is inhibited. For the effect that improves the energy dissipation and subtract and dash, be equipped with a plurality of vortex holes on pile foundation 1's perisporium, a plurality of vortex holes are arranged at the interval in the upper and lower direction, perhaps, a plurality of vortex holes are arranged at the interval in the circumference of surrounding pile foundation 1, or, a plurality of vortex holes are arranged at the upper and lower direction and in the circumference of surrounding pile foundation 1, distance between the adjacent vortex hole is more than or equal to 0.25D less than or equal to 1.0D, energy dissipation and subtract dashing as soon as possible after making torrent or mainstream in the sea water get into the vortex hole, turn into even slow flow, have simple efficient characteristics.
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. The utility model provides an offshore wind-power single pile basis which characterized in that includes:
a pile foundation, at least a portion of which has an elliptical peripheral profile in cross-section;
the tower drum is connected with the pile foundation;
the fan is connected with the tower drum and comprises an impeller, and the extending direction of the rotating center line of the impeller is the same as the extending direction of the long axis of the oval.
2. The offshore wind-power single pile foundation of claim 1, wherein the pile foundation comprises a first portion and a second portion connected in the length direction, the first portion is located above the second portion, the central axes of the first portion and the second portion are on the same line, the outer peripheral contour of the cross section of the second portion is oval, the shape of the bottom end of the first portion is matched with the shape of the top end of the second portion, and the outer peripheral contour of the top end of the first portion is circular.
3. The offshore wind electric single pile foundation of claim 2, wherein the outer diameter of the top end of the first section is less than or equal to the short outer diameter of the bottom end of the first section.
4. The offshore wind electric single pile foundation of claim 2, further comprising a flange connected to the top end of the first section, the tower being connected to the first section via the flange.
5. The offshore wind electric single pile foundation of claim 2, wherein the length of the first section is 5m-30m and the length of the second section is 10m-150 m.
6. The offshore wind power single pile foundation of any one of claims 1 to 5, wherein the ratio of the length of the major axis of the ellipse to the length of the minor axis is greater than 1 and equal to or less than 5.
7. Offshore wind power mono-pile foundation according to any of the claims 1-5, characterized in that the length of the major axis of the ellipse is 5-50 m.
8. Offshore wind power mono-pile foundation according to any of the claims 1-5, characterized in that the length of the minor axis of the ellipse is 1-50 m.
9. The offshore wind-power single pile foundation of claim 1, further comprising a spoiler provided on the pile foundation and protruding outward from an outer circumferential surface of the pile foundation.
10. The offshore wind power single pile foundation of claim 1 or 9, further comprising a spoiler hole provided on the pile foundation and penetrating through a circumferential wall of the pile foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122255203.3U CN216515711U (en) | 2021-09-16 | 2021-09-16 | Offshore wind power single pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122255203.3U CN216515711U (en) | 2021-09-16 | 2021-09-16 | Offshore wind power single pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216515711U true CN216515711U (en) | 2022-05-13 |
Family
ID=81520285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122255203.3U Active CN216515711U (en) | 2021-09-16 | 2021-09-16 | Offshore wind power single pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216515711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833011A (en) * | 2021-09-16 | 2021-12-24 | 华能(浙江)能源开发有限公司清洁能源分公司 | Offshore wind power single pile foundation |
-
2021
- 2021-09-16 CN CN202122255203.3U patent/CN216515711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833011A (en) * | 2021-09-16 | 2021-12-24 | 华能(浙江)能源开发有限公司清洁能源分公司 | Offshore wind power single pile foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103225315B (en) | Offshore wind power foundation consisting of single pile, cylindrical foundations and anchor cable | |
| CN103742338B (en) | A kind of energy by ocean current power supply underwater monitoring instrument | |
| CN204040050U (en) | Mixed type offshore wind power foundation structure | |
| CN216515711U (en) | Offshore wind power single pile foundation | |
| WO2023040170A1 (en) | Offshore wind power foundation | |
| CN216156649U (en) | Offshore wind power anti-scouring foundation | |
| CN216156627U (en) | Offshore wind power multi-pile foundation | |
| CN113774963A (en) | Offshore wind power anti-scouring device with energy dissipation net | |
| CN113718833A (en) | Offshore wind power anti-scouring foundation | |
| CN216156618U (en) | Offshore wind power foundation with turbulence holes | |
| CN113833032B (en) | Offshore wind power composite anti-scouring device | |
| CN113833011A (en) | Offshore wind power single pile foundation | |
| CN216156631U (en) | Offshore wind power foundation | |
| CN216615938U (en) | Offshore wind power suction barrel foundation with turbulence holes | |
| CN113718829B (en) | Offshore wind power multi-pile foundation | |
| CN216156658U (en) | Offshore wind power suction barrel foundation | |
| CN113718826A (en) | Offshore wind power suction barrel foundation | |
| CN216157820U (en) | Gravity type foundation for offshore wind power | |
| CN216156621U (en) | Compound scour prevention device of marine wind power | |
| CN216156650U (en) | Offshore wind power foundation with scour prevention function | |
| CN216156656U (en) | Offshore wind power anti-scouring composite device | |
| CN113718840A (en) | Offshore wind power multi-pile foundation | |
| CN216156654U (en) | Offshore wind power anti-scouring device with energy dissipation holes | |
| CN113684856A (en) | Offshore wind power foundation with worm sand guiding function | |
| CN216156629U (en) | Offshore wind power suction barrel foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |