CN220535913U - Semi-submersible offshore wind turbine foundation with multiple upright posts in tensioning arrangement - Google Patents
Semi-submersible offshore wind turbine foundation with multiple upright posts in tensioning arrangement Download PDFInfo
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- CN220535913U CN220535913U CN202322308819.1U CN202322308819U CN220535913U CN 220535913 U CN220535913 U CN 220535913U CN 202322308819 U CN202322308819 U CN 202322308819U CN 220535913 U CN220535913 U CN 220535913U
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- pontoon
- column
- offshore wind
- wind turbine
- auxiliary
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- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 238000005188 flotation Methods 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 239000011381 foam concrete Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920006327 polystyrene foam Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 4
- 238000010248 power generation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the field of floating type fan foundation structures of offshore wind power generation engineering, and particularly relates to a semi-submersible type offshore wind turbine foundation with multiple upright posts in tensioning arrangement. The utility model has simple structure, clear stress and simple and beautiful appearance, and is beneficial to the stability of the whole structure and the balance of the upright post pontoon system.
Description
Technical Field
The utility model belongs to the field of floating type fan foundation structures of offshore wind power generation engineering, and particularly relates to a semi-submersible type offshore fan foundation with multiple upright posts in tensioning arrangement.
Background
In recent years, with the proposal of a 'double carbon' target, wind power generation is taken as a renewable pollution-free green energy power generation mode, and a new round of rapid development is also obtained. Fans have been located throughout mountain, plain, plateau, gobi, offshore, desert, and ocean areas of the country.
Under the background of double carbon, the construction of offshore wind power generation engineering rapidly develops, and gradually develops from offshore to deeper and more distant sea areas. In deep open sea areas, the floating wind power foundation structure is more applicable, and particularly in deep water areas with the depth of more than 40 m.
The Chinese patent application CN219176493U discloses an offshore semi-submersible type fan foundation, which comprises a peripheral upright post (1), a central upright post (5) and a supporting rod (4), wherein the peripheral upright post is arranged on the periphery of the central upright post and is connected with the central upright post through the supporting rod, and the peripheral upright post is arranged in an outward inclined manner, and the inclination angle is 10-30 degrees; the peripheral upright posts and the central upright posts are arranged on the base floating body, the central upright posts are vertically arranged at the center of the base floating body, and the peripheral upright posts are uniformly distributed on the periphery of the base floating body. The base floating body is of a Y-shaped structure with three branches, each branch, a peripheral upright post and a supporting rod which are arranged on the base floating body are independent in groups, and connecting members are not arranged between each group. The application is simple and convenient to try, but the application still has a certain unbalance.
Disclosure of Invention
The utility model aims to disclose a semi-submersible offshore wind turbine foundation with multiple upright posts in tensioning arrangement. The utility model has simple structure and clear stress, can avoid the integral sinking of the pontoon caused by small damage, has simple and beautiful appearance and regular and uniform structure, and is beneficial to the stability of the integral structure and the balance of the upright pontoon system.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a semi-submerged formula offshore wind turbine foundation that many stands stretch-draw was arranged, includes the main stand flotation pontoon, the main stand flotation pontoon is located central part, evenly spaced sets up more than three auxiliary stand flotation pontoons around the main stand flotation pontoon, the main stand flotation pontoon with auxiliary stand flotation pontoon passes through frame construction fixed connection, every auxiliary stand flotation pontoon and adjacent fixed connection between the auxiliary stand flotation pontoon, the upper portion fixed connection conversion piece of main stand flotation pontoon, every auxiliary stand flotation pontoon's lower part fixed connection heave plate, the lower part fixed connection anchor chain of heave plate, the lower part fixed connection anchor block of every anchor chain.
Preferably, the frame construction is two K shape stull systems, two K shape stull systems include horizontal stull, erect and prop and bracing, horizontal stull one end fixed connection the main stand flotation pontoon, other end fixed connection vice stand flotation pontoon, and along the horizontal direction interval setting 2, the main stand flotation pontoon with be provided with on the vice stand flotation pontoon and erect and prop, erect prop both ends respectively with 2 horizontal stull fixed connection, the both ends of bracing respectively with horizontal stull with erect prop fixed connection.
Preferably, each auxiliary upright pontoon and adjacent auxiliary upright pontoon are provided with a top cable and a bottom cable along the horizontal direction interval, and the top cable is arranged above the bottom cable.
Preferably, the main upright pontoon and the auxiliary upright pontoon are buoyancy tanks formed by splicing inner and outer steel plates, and the inner steel plate is a cavity.
Preferably, foam concrete is filled between the inner steel plate and the outer steel plate, and EPS polystyrene foam plastic materials are filled in the cavity.
The utility model has the beneficial effects that:
1. the appearance is simple and beautiful, the structure is regular and uniform, and the device has unique technical advantages.
2. A rigid-flexible combined structural type is formed through N upright pontoons (N is more than or equal to 4), so that the stability of the whole structure and the balance of an upright pontoon system are facilitated. The main upright posts and the auxiliary upright posts are connected through the double-K-shaped transverse strut system, each auxiliary upright post is tensioned and fastened with the adjacent auxiliary upright post through a steel cable, the structure is simple, the stress is clear, the steel cable is utilized to have good stress performance, the relative position between the auxiliary upright posts can be effectively limited, and the integral rigidity of the structure can be ensured.
3. Foam concrete and EPS polystyrene foam plastic are introduced, the wall of the pontoon is filled with foam concrete between the inner steel plate and the outer steel plate to form a composite stress structure, and the respective mechanical advantages of steel and concrete can be fully exerted. EPS polystyrene foam plastic materials are filled in the pontoon, so that the problem that the pontoon is wholly sunk due to small damage can be avoided.
4. Simple and convenient implementation, and has unique technical advantages and strong popularization and application value.
Drawings
Fig. 1: a structural schematic diagram of a multi-column tensioning semi-submersible offshore wind turbine foundation.
Fig. 2: a top view of a multi-column pontoon system (1 main column pontoon and 3 auxiliary column pontoons).
Fig. 3: a top view of a multi-column pontoon system (1 main column pontoon and 4 auxiliary column pontoons).
In the figure: 1. connecting a conversion piece; 2. a main column pontoon; 3. a heave plate; 4. an anchor chain; 5. an anchor block; 6. a secondary upright post pontoon; 7. a bottom guy cable; 8. a horizontal cross brace; 9. diagonal bracing; 10. vertical support; 11. and a top guy cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model.
As shown in fig. 1-3, the utility model discloses a multi-column stretching semi-submersible offshore wind turbine foundation, which comprises a connection conversion piece 1, a main column pontoon 2, a secondary column pontoon 6, a double-K-shaped transverse strut system, a bottom stay rope 7, a top stay rope 11, a heave plate 3, an anchor chain 4 and an anchor block 5.
The connection conversion piece 1 is welded and connected to the upper part of the main upright pontoon 2.
The multi-column pontoon system comprises N column pontoons (N is more than or equal to 4), and comprises a main column pontoon 2 and N-1 auxiliary column pontoons 6, wherein the main column pontoon 2 is positioned at the center, more than three auxiliary column pontoons 6 are uniformly arranged at intervals around the main column pontoon 2, and the auxiliary column pontoons 6 are arranged along the circumferential array of the main column pontoon 1. The main upright pontoon 1 is connected with each auxiliary upright pontoon 6 through a double-K-shaped transverse bracing system.
The double-K-shaped transverse support system comprises a horizontal transverse support 8, a diagonal support 9 and a vertical support 10.
The horizontal cross braces are horizontally arranged between the main upright pontoon 1 and each auxiliary upright pontoon 6, one end of each horizontal cross brace is welded on the main upright pontoon 1, the other end of each horizontal cross brace is welded on each auxiliary upright pontoon 6, vertical braces are respectively arranged on the main upright pontoon 1 and each auxiliary upright pontoon 6, two ends of each vertical brace are respectively welded with 2 horizontal cross braces, each horizontal cross brace and each vertical brace between the main upright pontoon 1 and each auxiliary upright pontoon 6 form a rectangle, inclined braces are arranged on four corners of the rectangle, and two ends of each inclined brace are respectively welded with the horizontal cross braces and the vertical braces.
A top cable 11 and a bottom cable 7 are arranged between each auxiliary upright post pontoon 6 and the adjacent auxiliary upright post pontoon 6 at intervals along the horizontal direction, and the top cable 11 is arranged above the bottom cable 7. The top inhaul cable 11 adopts a steel hinge line, and hanging rings are arranged on each auxiliary upright post pontoon 6 and the adjacent auxiliary upright post pontoon 6 and are connected with the top inhaul cable through wire clamps. The bottom inhaul cable 7 adopts a steel hinge line, and hanging rings are arranged on each auxiliary upright post pontoon 6 and the adjacent auxiliary upright post pontoon 6 and are connected with the bottom inhaul cable through wire clamps.
The main upright pontoon 1 and the auxiliary upright pontoon 6 are buoyancy tanks formed by splicing an inner layer steel plate and an outer layer steel plate, a cavity is formed in the inner layer steel plate, foam concrete is filled between the inner steel plate and the outer steel plate, and EPS polystyrene foam plastic materials are filled in the cavity to form a unique composite structure.
Each main upright post pontoon 1 is connected with each auxiliary upright post pontoon 6 through a double-K-shaped cross brace system, each auxiliary upright post pontoon 6 is fastened with the adjacent auxiliary upright post pontoon 6 through steel cable stretching, the relative position between the auxiliary upright posts is limited through steel cable stretching, the integral rigidity of the structure is ensured, a rigid-flexible combined structural type is formed, and the stability of the integral structure and the balance of the upright post pontoon system are facilitated. Foam concrete and EPS polystyrene foam plastic materials are introduced, and a unique upright post pontoon structure is designed. Foam concrete is filled in the middle of the inner steel plate and the outer steel plate of the pontoon wall, so that the formed composite structure can fully utilize the respective mechanical advantages of steel and concrete, and the structural strength of the upright pontoon is ensured. EPS polystyrene foam plastic materials are fully filled in the pontoon, and under extreme conditions, even if the pontoon is locally damaged, the pontoon can be ensured to have enough buoyancy, and the problem that the pontoon is wholly sunk due to small damage can be avoided.
The lower part of each auxiliary upright post pontoon is welded and connected with a heave plate 3, the lower part of each heave plate 3 is respectively welded and connected with 2 anchor chains 4, and the lower part of each anchor chain 4 is welded and connected with an anchor block 5.
Claims (5)
1. The utility model provides a semi-submerged formula offshore wind turbine foundation that many stands stretch-draw was arranged, its characterized in that includes the main stand flotation pontoon, the main stand flotation pontoon is located central part, the even interval in the surrounding of main stand flotation pontoon sets up more than three auxiliary stand flotation pontoon, the main stand flotation pontoon with auxiliary stand flotation pontoon passes through frame construction fixed connection, every auxiliary stand flotation pontoon and adjacent fixed connection between the auxiliary stand flotation pontoon, the upper portion fixed connection of main stand flotation pontoon changes the piece, every auxiliary stand flotation pontoon's lower part fixed connection heave plate, the lower part fixed connection anchor chain of heave plate, the lower part fixed connection anchor block of every anchor chain.
2. The multi-column tensioning arranged semi-submersible offshore wind turbine foundation according to claim 1, wherein the frame structure is a double-K-shaped cross brace system, the double-K-shaped cross brace system comprises a horizontal cross brace, a vertical cross brace and diagonal braces, one end of the horizontal cross brace is fixedly connected with the main column pontoon, the other end of the horizontal cross brace is fixedly connected with the auxiliary column pontoon, 2 vertical cross braces are arranged at intervals along the horizontal direction, the main column pontoon and the auxiliary column pontoon are provided with vertical cross braces, two ends of each vertical cross brace are respectively fixedly connected with 2 horizontal cross braces, and two ends of each diagonal brace are respectively fixedly connected with the horizontal cross brace and the vertical cross brace.
3. The multi-column tension arranged semi-submersible offshore wind turbine foundation of claim 1, wherein each secondary column buoy is provided with a top cable and a bottom cable spaced apart in a horizontal direction between the adjacent secondary column buoy, the top cable being disposed above the bottom cable.
4. The multi-column tension arranged semi-submersible offshore wind turbine foundation of claim 1, wherein the primary column pontoon and the secondary column pontoon are pontoons that are pieced together of inner and outer steel plates, the inner steel plate being hollow.
5. The multi-column stretch-draw arranged semi-submersible offshore wind turbine foundation of claim 4 wherein foam concrete is filled between the inner and outer steel plates and EPS polystyrene foam plastic material is filled in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308819.1U CN220535913U (en) | 2023-08-28 | 2023-08-28 | Semi-submersible offshore wind turbine foundation with multiple upright posts in tensioning arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308819.1U CN220535913U (en) | 2023-08-28 | 2023-08-28 | Semi-submersible offshore wind turbine foundation with multiple upright posts in tensioning arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220535913U true CN220535913U (en) | 2024-02-27 |
Family
ID=89966201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308819.1U Active CN220535913U (en) | 2023-08-28 | 2023-08-28 | Semi-submersible offshore wind turbine foundation with multiple upright posts in tensioning arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220535913U (en) |
-
2023
- 2023-08-28 CN CN202322308819.1U patent/CN220535913U/en active Active
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