CN217813767U - Floating type offshore wind power foundation structure - Google Patents
Floating type offshore wind power foundation structure Download PDFInfo
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- CN217813767U CN217813767U CN202221989190.0U CN202221989190U CN217813767U CN 217813767 U CN217813767 U CN 217813767U CN 202221989190 U CN202221989190 U CN 202221989190U CN 217813767 U CN217813767 U CN 217813767U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
Abstract
The utility model discloses a floating offshore wind power foundation structure, which comprises a large upright post, three small upright posts and four connecting beams; four connecting beams connect three small upright posts of the large upright post into a square; the large upright post and the small upright post are both regular quadrangular; the large upright post comprises a large upright post main body, a large upright post damping plate, a plurality of toggle plates and a fan foundation ring; the small upright post comprises a small upright post main body, a small upright post rocking reduction plate and a plurality of toggle plates; the connecting beam is of a space truss structure with an equilateral triangle cross section and comprises an upper chord, two lower chords, a plurality of cross rods and a plurality of X-shaped inclined rods; the upper chord and the two lower chords are arranged in a regular triangular prism manner, so that the two lower chords form the bottom surface of the connecting beam, and the two lower chords and the upper chord form the two side surfaces of the connecting beam; a damping plate is arranged on the bottom surface of the connecting beam; the hole of permeating water all sets up on the surface of every damping plate. The utility model discloses can not only improve the stability in aqueous, can also promote the ripples tolerance.
Description
Technical Field
The utility model relates to a float formula offshore wind power foundation structure.
Background
Under the large background of carbon peak reaching and carbon neutralization, offshore wind power construction develops rapidly. At present, offshore wind farms are mainly concentrated in offshore diving areas and mostly adopt fixed foundations. But as the available space near the sea decreases, the offshore wind power has paced deeper, more distant sea areas. In addition, the wind energy reserve of the deep and distant sea areas in China is larger, according to preliminary research, the wind energy reserve of the deep and distant sea areas is more than three times of that of the offshore wind, and on the basis, the development of the offshore wind power to deeper and farther sea areas is inevitable, so that the offshore wind power generation system not only can provide a large amount of renewable energy power for onshore residents, but also can cooperate with new fields such as renewable energy hydrogen production and aquaculture to realize local consumption, and is a great trend of offshore wind power development in the future.
In deep and remote sea areas, compared with the current mainstream fixed offshore wind power foundation structure, the floating offshore wind power foundation structure is suitable for wider offshore space, is not influenced by seabed geological conditions, has relatively small influence on the environment in water depth areas of 50 meters and above, and is relatively more flexible in fan site selection.
At present, three main types of floating wind power bases are semi-submersible type, TLP type (tension leg type) and SPAR type (single column type). The semi-submersible floating foundation with wide application and mature technology is a foundation form which is more suitable for offshore wind power development at the present stage. The existing floating type wind power foundation is generally composed of three upright posts and three connecting beams, the three connecting beams connect the three upright posts to enable the three upright posts to be positioned at three corners of an equilateral triangle, and a three-upright-post foundation platform usually needs larger upright post spacing than a four-upright-post foundation platform under the same dynamic performance, so that higher requirements are provided for connecting beam structures between the upright posts, construction and manufacturing and launching. The connecting beam in the existing floating wind power foundation mainly adopts structures such as reinforced plates, round tubes and square tubes, and the axial compression resistance, bending resistance and tensile resistance of the connecting beam are poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide a float marine wind power foundation structure of formula, it can not only improve the stability in aqueous, can also promote ripples tolerance.
The purpose of the utility model is realized like this: a floating offshore wind power foundation structure comprises a large upright post, three small upright posts and four connecting beams; the four connecting beams connect the three small upright posts of the large upright post into a square, so that the large upright post and the three small upright posts are positioned at four corners of the square; wherein the content of the first and second substances,
the large upright post and the small upright post are both square prisms with closed tops and closed bottoms, the height of the large upright post is greater than that of the small upright post, and the plane size of the large upright post is greater than that of the small upright post;
the large upright post comprises a large upright post main body, a large upright post damping plate, a plurality of toggle plates and a fan foundation ring; the main body of the large upright post is a steel cavity body; the large upright post damping plate is a steel annular plate and is fixed at the bottom of the side wall of the large upright post main body; the plurality of toggle plates are connected between the top surface of the large upright post damping plate and the outer side wall of the large upright post main body at intervals; the fan foundation ring is fixed at the center of the top surface of the large upright post main body;
the small upright post comprises a small upright post main body, a small upright post damping plate and a plurality of toggle plates; the main body of the small upright post is a steel cavity body; the small upright post rocking reducing plate is a steel annular plate and is fixed at the bottom of the side wall of the small upright post main body; the plurality of toggle plates are connected between the top surface of the small upright post damping plate and the outer side wall of the small upright post main body at intervals;
the connecting beam is of a space truss structure with an equilateral triangle cross section and comprises an upper chord, two lower chords, a plurality of cross rods and a plurality of X-shaped inclined rods; the upper chord and the two lower chords are arranged in a regular triangular prism manner, so that the two lower chords form the bottom surface of the connecting beam, and the two lower chords and the upper chord form the two side surfaces of the connecting beam; the plurality of cross rods are vertically connected between the two lower chords and the upper chords at intervals, and the bottom surface and the two side surfaces of the connecting beam are divided into a plurality of rectangular unit surfaces; a plurality of X-shaped inclined rods are connected in each unit surface, so that each unit surface is divided into two pairs of triangular surfaces; two pairs of damping plates matched with the two pairs of triangular surfaces are arranged in each unit surface on the bottom surface of the connecting beam; the hole of permeating water all sets up on the surface of every damping plate.
In the floating offshore wind power foundation structure, the upper chord, the lower chord, the cross bar and the X-shaped diagonal bar of the connecting beam are all made of steel round tubes; the damping plate is made of a steel plate.
In the floating offshore wind power foundation structure, the four corners of the large upright post body are rounded, and the radius of the rounded corners is not more than 5% of the length of the four side walls of the large upright post body; four corners of the three small upright post main bodies are all rounded, and the radius of the rounded corners is not more than 5% of the length of the four side walls of the small upright post main bodies.
Foretell floating offshore wind power foundation structure, wherein, all set up the connecting hole that corresponds with the last chord member and two lower chords of tie-beam on the two sides lateral wall of the corresponding tie-beam of little stand main part and the two sides lateral wall of the corresponding tie-beam of big stand body, make after last chord member and two lower chords stretch into the connecting hole with the lateral wall of little stand main part and the lateral wall welded connection of big stand body.
The utility model discloses a float marine wind power foundation structure of formula has following characteristics:
1. the four connecting beams connect one large upright post and three small upright posts into a square, so that the large upright post and the three small upright posts are positioned at four corners of the square, and the four-upright-post foundation platform has small upright post spacing compared with a three-upright-post foundation platform under the same dynamic performance, so that the wave resistance is better, and the construction and the manufacture are convenient;
2. the large and small upright posts are in regular quadrangular prism structures, so that a large amount of bent plate work can be saved during manufacturing, and the manufacturing process is more convenient; and because the tie-beam adopts the space truss structure, the smooth lateral wall of square stand is convenient for more with being connected of tie-beam.
3. The bottom of the large upright post and the bottom of the three small upright posts are provided with the damping plates, so that the mass of the large upright post and the mass of the three small upright posts can be added, the stability of the floating wind power foundation can be improved, and the arrangement of the large upright post and the small upright posts improves the symmetry of the gravity center of the offshore wind power foundation structure, obviously increases the stability of the foundation structure and effectively improves the motion performance of the foundation structure; the arrangement of the large upright post and the small upright post can also effectively utilize the buoyancy of the upright posts, and avoid the increase of the processing cost of the foundation structure due to the surplus buoyancy;
4. the connecting beam adopts a space truss structure with an equilateral triangle cross section, so that the connecting beam has better stability, can effectively reduce the use of cross bars, inclined bars and inner support rods, has larger section inertia moment and polar inertia moment, can reduce stress when being subjected to bending force and torsion, has better compression resistance and bending resistance and excellent tensile property compared with the connecting beam with a round pipe, a square pipe and other structures made of the same material, and ensures the structural strength of the connecting beam;
5. set up the damping board in the bottom surface of tie-beam, make foundation structure all can produce the damping when the aquatic motion to the ripples nature of floating formula wind-powered electricity generation basis has been promoted.
Drawings
FIG. 1 is an isometric view of the floating offshore wind power infrastructure of the present invention;
FIG. 2 is an elevation view of the floating offshore wind power infrastructure of the present invention;
FIG. 3 is a top view of the floating offshore wind power infrastructure of the present invention;
FIG. 4 is an isometric view of a large column in the floating offshore wind power infrastructure of the present invention;
FIG. 5 is an isometric view of a small column in the floating offshore wind power infrastructure of the present invention;
fig. 6 is an axonometric view of tie-beam among the floating offshore wind power infrastructure of the utility model.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 6, the floating offshore wind power foundation structure of the present invention includes a large column 1, three small columns 2 and four connecting beams 3.
The large upright column 1 and the small upright column 2 are both square prisms with closed tops and bottoms, and the height of the large upright column 1 is greater than that of the small upright column 2; the plane size of the large upright post 1 is larger than that of the small upright post 2.
The large upright column 1 and the three small upright columns 2 are arranged in a square shape by connecting lines of plane geometric centers of the large upright column 1 and the three small upright columns; four tie-beams 3 are connected between the lower part of big stand 1 and the lower part of adjacent little stand 2 and between the lower part of little stand 2 and the lower part of little stand 2, and four tie-beams 3 are all submerged in the aquatic, can reduce the wave load that the floating foundation bore.
The large upright post 1 comprises a large upright post main body 11, a large upright post damping plate 12, a plurality of toggle plates 13 and a fan foundation ring 14; the main body 11 of the large upright post is a steel hollow cavity; the large upright post damping plate 12 is a steel square ring plate and is welded and fixed at the bottom of the outer side wall of the large upright post main body 11; the toggle plates 13 are right-angled triangular steel plates, and the plurality of toggle plates 13 are connected between the top surface of the large column damping plate 12 and the outer side wall of the large column main body 11 at intervals; the fan foundation ring 14 is fixed at the center of the top surface of the large upright main body 11.
The small upright post 2 comprises a small upright post main body 21, a small upright post rocking reducing plate 22 and a plurality of toggle plates 13; the small upright post main body 21 is a steel hollow cavity body; the small upright post reducing and shaking plate 22 is a steel square annular plate and is welded and fixed at the bottom of the outer side wall of the small upright post main body 21; the toggle plates 13 are right-angled triangular steel plates, and a plurality of the toggle plates 13 are connected at intervals between the top surface of the small column damper plate 22 and the outer side wall of the small column main body 21.
The connecting beam 3 is a space truss structure with an equilateral triangle cross section, and the connecting beam 3 comprises an upper chord 31, two lower chords 32, a plurality of cross bars 33 and a plurality of X-shaped inclined bars 34; wherein, the upper chord 31 and the two lower chords 32 are arranged in a regular triangular prism manner, so that the two lower chords 32 form the bottom surface of the connecting beam, and the two lower chords 32 and the upper chord 31 form the two side surfaces of the connecting beam 3; the cross rods 33 are vertically connected between the two lower chords 32 and the upper chord 31 at intervals, and divide the bottom surface and the two side surfaces of the connecting beam 3 into a plurality of rectangular unit surfaces; a plurality of X-shaped diagonal rods 34 are connected in each unit surface, so that each unit surface is divided into two pairs of triangular surfaces; two pairs of damping plates 35 matched with the two pairs of triangular surfaces are arranged in each unit surface on the bottom surface of the connecting beam 3; the surface of each damping plate 35 is provided with a water permeable hole. The upper chord 31, the lower chord 32, the cross rod 33 and the diagonal rods 4 are made of steel round pipes; the damping plate 35 is a steel plate.
Connecting holes corresponding to the upper chord 31 and the two lower chords 32 of the connecting beam 3 are formed in the side wall of the corresponding connecting beam 3 of the small column main body 21 and the side wall of the corresponding connecting beam 3 of the large column main body 11, so that the upper chord 31 and the two lower chords 33 extend into the connecting holes and then are connected with the side wall of the small column main body 21 and the side wall of the large column main body 11 in a welding mode.
Four corners of the large upright post body 11 are rounded, and the radius of the rounded corners is not more than 5% of the length of the four side walls of the large upright post body 11; all fillets in four corners of the three small upright post main bodies 21 are not more than 5% of the length of the four side walls of the small upright post main bodies 21 in radius, and vortex damping generated by water flow circumfluence can be effectively reduced after the fillets in the four corners of the large upright post main body 11 and the four corners of the small upright post main bodies 21 are rounded.
The utility model discloses a floating offshore wind power foundation structure, the big stand that is established at the bottom of big stand 1 subtracts rocking plate 12 and the little stand that is established at three little stand 2 bottoms subtracts rocking plate 22 to and establish damping plate 35 on the bottom surface of tie-beam 3 all can produce the additional mass when the aquatic motion, subtracts rocking plate and damping plate combined action comparatively obvious increased the additional mass of floating wind power foundation, the effectual stability that improves floating wind power foundation; and big stand subtracts rocking plate 12, little stand and subtracts damping plate 35 on rocking plate 22 and the tie-beam 3 all can produce the damping when the aquatic motion, can adjust the size of the hole that permeates water on the damping plate 35 and change the water permeability of tie-beam 3 to change the damping, promote the resistant ripples nature of floating wind-powered electricity generation basis, thereby can adapt to more sea states.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (4)
1. A floating offshore wind power foundation structure comprises a large upright post, three small upright posts and four connecting beams; the four connecting beams connect the three small upright posts of the large upright post into a square, so that the large upright post and the three small upright posts are positioned at four corners of the square; it is characterized in that the preparation method is characterized in that,
the large upright post and the small upright post are both square prisms with closed tops and closed bottoms, the height of the large upright post is greater than that of the small upright post, and the plane size of the large upright post is greater than that of the small upright post;
the large upright post comprises a large upright post main body, a large upright post damping plate, a plurality of toggle plates and a fan foundation ring; the main body of the large upright post is a steel cavity body; the large upright post damping plate is a steel annular plate and is fixed at the bottom of the side wall of the large upright post main body; the plurality of toggle plates are connected between the top surface of the large upright post damping plate and the outer side wall of the large upright post main body at intervals; the fan foundation ring is fixed at the center of the top surface of the large upright post main body;
the small upright post comprises a small upright post main body, a small upright post damping plate and a plurality of toggle plates; the main body of the small upright post is a steel cavity body; the small upright post reducing and swinging plate is a steel annular plate and is fixed at the bottom of the side wall of the small upright post main body; the plurality of toggle plates are connected between the top surface of the small upright post damping plate and the outer side wall of the small upright post main body at intervals;
the connecting beam is of a space truss structure with an equilateral triangle cross section and comprises an upper chord, two lower chords, a plurality of cross rods and a plurality of X-shaped inclined rods; the upper chord and the two lower chords are arranged in a regular triangular prism manner, so that the two lower chords form the bottom surface of the connecting beam, and the two lower chords and the upper chord form the two side surfaces of the connecting beam; the plurality of cross rods are vertically connected between the two lower chords and the upper chords at intervals, and the bottom surface and the two side surfaces of the connecting beam are divided into a plurality of rectangular unit surfaces; a plurality of X-shaped inclined rods are connected in each unit surface, so that each unit surface is divided into two pairs of triangular surfaces; two pairs of damping plates matched with the two pairs of triangular surfaces are arranged in each unit surface on the bottom surface of the connecting beam; the hole of permeating water all sets up on the surface of every damping plate.
2. The floating offshore wind power infrastructure of claim 1, wherein the upper chord, the lower chord, the cross bar and the X-shaped diagonal of the connecting beam are all steel round tubes; the damping plate is made of a steel plate.
3. The floating offshore wind power infrastructure of claim 1, wherein four corners of the large column body are rounded, the radius of the rounded corners being no more than 5% of the length of the four side walls of the large column body; four corners of the three small upright post main bodies are all rounded, and the radius of the rounded corners is not more than 5% of the length of the four side walls of the small upright post main bodies.
4. The floating offshore wind power foundation structure of claim 1, wherein the two side walls of the corresponding tie-beams of the small column main body and the two side walls of the corresponding tie-beams of the large column main body are both provided with connecting holes corresponding to the upper chords and the two lower chords of the tie-beams, so that the upper chords and the two lower chords are welded to the side walls of the small column main body and the side walls of the large column main body after extending into the connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221989190.0U CN217813767U (en) | 2022-07-28 | 2022-07-28 | Floating type offshore wind power foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221989190.0U CN217813767U (en) | 2022-07-28 | 2022-07-28 | Floating type offshore wind power foundation structure |
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| Publication Number | Publication Date |
|---|---|
| CN217813767U true CN217813767U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221989190.0U Active CN217813767U (en) | 2022-07-28 | 2022-07-28 | Floating type offshore wind power foundation structure |
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- 2022-07-28 CN CN202221989190.0U patent/CN217813767U/en active Active
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