CN113718826A - Offshore wind power suction barrel foundation - Google Patents
Offshore wind power suction barrel foundation Download PDFInfo
- Publication number
- CN113718826A CN113718826A CN202111087575.8A CN202111087575A CN113718826A CN 113718826 A CN113718826 A CN 113718826A CN 202111087575 A CN202111087575 A CN 202111087575A CN 113718826 A CN113718826 A CN 113718826A
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- wind power
- suction
- offshore wind
- foundation
- suction cylinder
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses an offshore wind power suction cylinder foundation which comprises a suction cylinder, an upright post and a fan, wherein the suction cylinder is embedded in a seabed, the top end surface of the suction cylinder is exposed out of the seabed, the peripheral outline of the cross section of the suction cylinder is oval, the bottom of the upright post is connected with the suction cylinder, the fan is arranged at the top end of the upright post, 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 suction cylinder foundation has the advantages of simple structure, stable suction cylinder, long service life and the like.
Description
Technical Field
The invention relates to the technical field of offshore wind power, in particular to an offshore wind power suction cylinder 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.
Disclosure of Invention
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 invention provides an offshore wind power suction cylinder foundation which is stable in structure, strong in wind resistance and low in cost.
According to the embodiment of the invention, the offshore wind power suction cylinder foundation comprises: the suction cylinder is buried in the seabed, the top end face of the suction cylinder is exposed out of the seabed, and the peripheral outline of the cross section of the suction cylinder is elliptical; the bottom of the upright column is connected with the suction cylinder; the fan is installed on the top end of the upright post 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 suction cylinder foundation provided by the embodiment of the invention, the stability of the offshore wind power suction cylinder foundation is improved through the arrangement of the suction cylinder, the offshore wind power suction cylinder foundation is prevented from being inclined or rushed down due to the influence of sea wind, and the service life of the offshore wind power suction cylinder foundation is prolonged.
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 20m-100m in length.
In some embodiments, the length of the minor axis of the ellipse is 4m-100 m.
In some embodiments, the central axis of the upright is collinear with the central axis of the suction canister.
In some embodiments, the outer circumferential profile of the cross section of the pillar is elliptical, and a major axis of the outer circumferential profile of the cross section of the pillar extends in the same direction as a rotational center line of the impeller.
In some embodiments, the offshore wind power suction cylinder foundation comprises a plurality of support columns, the bottom ends of the support columns are connected with the top end of the suction cylinder, the top ends of the support columns are connected with the outer peripheral wall of the upright post, and the support columns are arranged around the upright post at intervals.
In some embodiments, centers of bottom ends of the support columns are distributed along a circumference of a first ellipse, and a major axis of the first ellipse extends along an extending direction of a rotation center line of the impeller.
In some embodiments, the suction cylinder includes an elliptical cylinder with a central axis extending in a vertical direction and a top plate connected to a top of the elliptical cylinder to define a downwardly opening suction bin.
In some embodiments, the suction drum further comprises a plurality of vertically arranged bin dividing plates arranged in the suction bin so as to divide the suction bin into a plurality of sub-bins.
Drawings
FIG. 1 is a schematic structural diagram of an offshore wind power suction cylinder foundation according to an embodiment of the invention.
FIG. 2 is a front view of an offshore wind power suction drum foundation according to an embodiment of the present invention.
FIG. 3 is a top view of an offshore wind power suction drum foundation according to an embodiment of the present invention.
FIG. 4 is a bottom view of an offshore wind power suction drum foundation according to an embodiment of the present invention.
Reference numerals:
an offshore wind power suction cylinder foundation 100;
a suction tube 1; an elliptical cylinder 11; a top plate 12; a bin dividing plate 13; a suction hopper 14; a sub-bin 141; a column 2; a support column 3; the first support column 31; a second support column 32; a first ellipse 4.
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 invention and are not to be construed as limiting the invention.
1-4, an offshore wind power suction canister foundation according to an embodiment of the invention.
An offshore wind power suction canister foundation according to an embodiment of the invention comprises a suction canister 1, a column 2 and a wind turbine (not shown in the figure).
The suction tube 1 is buried in the sea bed with its top end face exposed from the sea bed, and the outer circumferential profile of the cross section of the suction tube 1 is elliptical. As can be known to those skilled in the art that the suction tube 1 is buried in the seabed, the installation principle of the suction tube 1 is similar to that of a cupping glass, after the suction tube 1 is placed on the surface of the seabed, seawater in the suction tube 1 is sucked out by a water pump, the pressure in the suction tube 1 is reduced, and the suction tube 1 gradually sinks to a preset depth under the action of the pressure difference between the inside and the outside of the suction tube 1.
The bottom of the upright post 2 is connected with the suction tube 1. Specifically, as shown in fig. 1-2, the upright 2 is mounted above the suction tube 1.
The fan is arranged at the top end of the upright post 2 and 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 ellipse. Specifically, the extending direction of the rotation center line of the impeller is defined as a main wind direction, and the major axis of the elliptical suction tube 1 extends in the main wind direction.
According to the offshore wind power suction cylinder foundation 100 provided by the embodiment of the invention, the peripheral outline of the cross section of the suction cylinder 1 is oval, and the oval shape has a bias flow line type, so that the oval shape can more effectively reduce the impact effect of fluid on the surface of the suction cylinder than a common round shape, the oval suction cylinder 1 is stronger in stability, can bear stronger impact force of sea wind, prevent the suction cylinder 1 from inclining or falling down under the impact force of the sea wind, and prolong the service life of the offshore wind power suction cylinder foundation 100.
According to the offshore wind power suction tube foundation 100 provided by the embodiment of the invention, the extending direction of the rotating 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 suction tube 1 can be reduced, and the stability of the suction tube 1 is ensured.
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 major axis of the ellipse is 20m to 100m in length. The length of the major axis of the ellipse can be any value of 20m, 30m, 40m, 50m, 60m, 70m, 80m, 90m and 100 m.
In some embodiments, the minor axis of the ellipse is 4m-100m in length. . The length of the minor axis of the ellipse can be selected from any value of 4m, 10m, 20m, 30m, 40m, 50m, 60m, 70m, 80m, 90m and 100 m.
In some embodiments, the central axis of the upright 2 is collinear with the central axis of the suction tube 1. Specifically, as shown in fig. 2, the central axis of the upright column 2 coincides with the central axis of the suction tube 1 in the vertical direction, so that the upright column 2 is located at the center of the suction tube 1, the suction tube 1 is prevented from being inclined when being installed, and the installation efficiency of the suction tube 1 is improved.
In some embodiments, the peripheral outline of the cross section of the column 2 is elliptical, and the long axis of the peripheral outline of the cross section of the column 2 extends in the same direction as the rotation center line of the impeller. Specifically, as shown in fig. 1-2, the outer peripheral surface of the upright column 2 is an oval shape (not shown in the drawings), and the long axis of the oval upright column 2 extends along the wind direction of the main wind direction, so that the upright column 2 has the capability of resisting sea wind impact, and the service life of the offshore wind power suction cylinder foundation 100 is further prolonged.
In some embodiments, offshore wind power suction cylinder foundation 100 includes a plurality of support columns 3, the bottom ends of support columns 3 are connected with the top end of suction cylinder 1, the top ends of support columns 3 are connected with the peripheral wall of upright column 2, and a plurality of support columns 3 are arranged around upright column 2 at intervals. Specifically, as shown in fig. 1 to 3, a plurality of support columns 3 are arranged at intervals along the outer circumferential surface of the column 2, the lower ends of the support columns 3 are connected to the upper end surface of the suction tube 1, and the upper ends of the support columns 3 are fixed to the outer circumferential side of the column 2, so that the stability of the column 2 is further improved by the plurality of support columns 3.
In some embodiments, the centers of the bottom ends of the plurality of support posts 3 are distributed along the circumference of the first ellipse 4, and the major axis of the first ellipse 4 extends in the extending direction of the rotation center line of the impeller. Specifically, as shown in fig. 1 to 3, the plurality of support columns 3 include two first support columns 31 and a plurality of second support columns 32, the lower ends of the two first support columns 31 are respectively disposed at two ends of the major axis of the first ellipse 4, and the lower ends of the plurality of second support columns 32 are spaced along the direction of the first ellipse 4, because the ellipse has a bias current line type, the impact of the fluid on the surface of the ellipse can be more effectively reduced than that of a common circle, the stability of the offshore wind power suction cylinder foundation 100 is further improved by the support columns 3 arranged in the shape of the first ellipse 4, and the impact of the offshore wind power suction cylinder foundation 100 can be further improved.
In some embodiments, as shown in fig. 4, the suction cylinder 1 includes an elliptical cylinder 11 and a top plate 12, the central axis of the elliptical cylinder 11 extends in a vertical direction, and the top plate 12 is connected to the top of the elliptical cylinder 11 to define a suction bin 14 with a downward opening. The offshore wind power suction cylinder foundation 100 extends in the vertical direction through the central axis of the elliptical cylinder 11, so that the suction cylinder 1 is not inclined, and the installation efficiency of the suction cylinder 1 is ensured.
In some embodiments, the suction cartridge 1 further comprises a plurality of vertically arranged bin dividing plates 13, the bin dividing plates 13 being arranged within the suction bin 14 so as to divide the suction bin 14 into a plurality of sub-bins 141. Specifically, as shown in fig. 4, the plurality of bin dividing plates 13 are disposed along the inner circumferential surface of the suction bin 14 at intervals to divide the suction bin 14 into a plurality of sub-bins 141, so that seawater in the plurality of sub-bins 141 can be simultaneously extracted, and the installation efficiency of the suction tube 1 is further improved.
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 invention 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 invention.
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 suction cylinder foundation, comprising:
the suction cylinder is buried in the seabed, the top end face of the suction cylinder is exposed out of the seabed, and the peripheral outline of the cross section of the suction cylinder is elliptical;
the bottom of the upright column is connected with the suction cylinder;
the fan is installed on the top end of the upright post 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 suction tube foundation of claim 1, wherein 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.
3. Offshore wind power suction tube foundation according to claim 1 or 2, wherein the length of the major axis of the ellipse is 20-100 m.
4. Offshore wind power suction tube foundation according to claim 1 or 2, wherein the length of the minor axis of the ellipse is 4-100 m.
5. The offshore wind power suction drum foundation of claim 1, wherein the central axis of the upright column is collinear with the central axis of the suction drum.
6. The offshore wind power suction tube foundation of claim 1 or 5, wherein the cross section of the upright post has an elliptical peripheral profile, and the extension direction of the major axis of the cross section of the upright post is the same as the extension direction of the rotation center line of the impeller.
7. The offshore wind power suction tube foundation of claim 1, comprising a plurality of support columns, wherein the bottom ends of the support columns are connected with the top end of the suction tube, the top ends of the support columns are connected with the outer peripheral wall of the upright post, and the support columns are arranged around the upright post at intervals.
8. The offshore wind power suction tube foundation of claim 7, wherein centers of bottom ends of the plurality of support columns are distributed along a circumference of a first ellipse, and a major axis of the first ellipse extends along an extending direction of a rotation center line of the impeller.
9. The offshore wind power suction tube foundation of claim 1, wherein the suction tube comprises an elliptical tube and a top plate, the central axis of the elliptical tube extends in a vertical direction, and the top plate is connected with the top of the elliptical tube to define a suction bin with a downward opening.
10. The offshore wind power suction drum foundation of claim 9, wherein the suction drum further comprises a plurality of vertically disposed bin dividing plates disposed within the suction bin so as to divide the suction bin into a plurality of sub-bins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087575.8A CN113718826A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power suction barrel foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087575.8A CN113718826A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power suction barrel foundation |
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| CN113718826A true CN113718826A (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111087575.8A Pending CN113718826A (en) | 2021-09-16 | 2021-09-16 | Offshore wind power suction barrel foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560050A (en) * | 2022-03-16 | 2022-05-31 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power foundation |
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| CN205188994U (en) * | 2015-12-08 | 2016-04-27 | 山东科技大学 | Take branch storehouse skirt -type suction bucket shape basis of pterygoid lamina |
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| CN107023030A (en) * | 2017-03-30 | 2017-08-08 | 河海大学 | Oval pile foundation and its performance test apparatus and method for marine tidal-current energy engineering |
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| CN110630446A (en) * | 2018-08-31 | 2019-12-31 | 北京金风科创风电设备有限公司 | Envelope, wind generating set and tower drum structure |
| CN111119223A (en) * | 2020-01-13 | 2020-05-08 | 天津大学 | Oval multi-cylinder jacket foundation structure |
| CN111852785A (en) * | 2020-08-21 | 2020-10-30 | 明阳智慧能源集团股份公司 | Tower drum of wind driven generator and tower footing yaw type wind driven generator set with tower drum |
| CN113323005A (en) * | 2021-04-24 | 2021-08-31 | 张继红 | Construction method of floating suction barrel foundation and floating suction barrel foundation |
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2021
- 2021-09-16 CN CN202111087575.8A patent/CN113718826A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291551A (en) * | 2013-06-06 | 2013-09-11 | 江苏新誉重工科技有限公司 | Integrated yaw type floating wind power plant at sea |
| JP5616508B1 (en) * | 2013-09-26 | 2014-10-29 | 勝巳 川▲崎▼ | Buildings that deal with natural disasters (tsunamis, tornadoes, etc.) |
| CN205188994U (en) * | 2015-12-08 | 2016-04-27 | 山东科技大学 | Take branch storehouse skirt -type suction bucket shape basis of pterygoid lamina |
| CN105544584A (en) * | 2016-01-21 | 2016-05-04 | 广东省交通规划设计研究院股份有限公司 | Oblate ellipsoid-shaped bridge sunk shaft foundation favorable for changing course of ship colliding with bridge |
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| CN110630446A (en) * | 2018-08-31 | 2019-12-31 | 北京金风科创风电设备有限公司 | Envelope, wind generating set and tower drum structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114560050A (en) * | 2022-03-16 | 2022-05-31 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power foundation |
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Application publication date: 20211130 |
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