CN108316336A - A kind of novel lattice offshore wind turbine buoyant foundation composite structure - Google Patents
A kind of novel lattice offshore wind turbine buoyant foundation composite structure Download PDFInfo
- Publication number
- CN108316336A CN108316336A CN201810315777.5A CN201810315777A CN108316336A CN 108316336 A CN108316336 A CN 108316336A CN 201810315777 A CN201810315777 A CN 201810315777A CN 108316336 A CN108316336 A CN 108316336A
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- Prior art keywords
- lattice
- wind turbine
- offshore wind
- gin pole
- concrete
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Classifications
-
- 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
- E02D27/42—Foundations for poles, masts or chimneys
-
- 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
- E02D27/50—Anchored 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
- E02D27/52—Submerged foundations, i.e. submerged in open water
Abstract
The invention discloses a kind of novel lattice offshore wind turbine buoyant foundation composite structures, are related to Offshore Wind Power Generation Technology field.The system includes wind turbine, tower, contact truss, lattice gin pole, ring pontoon, upper box body, lower part box, catenary, pile foundation.Each limb difference injection upper box body of the lattice gin pole and lower part box certain length, and anchored using peg and circumferential reinforcement；The lattice gin pole is connect by catenary with pile foundation；The structure arranges a Fans on lattice gin pole.Lattice gin pole is used in the foundation structure, the ocean current load acted on buoyant foundation can be significantly reduced, truss member is primarily subjected to axial tension or pressure, so as to make full use of the intensity of material, simple structure, vertical and overall stability are good, it is a kind of completely new offshore wind turbine foundation structure type, is highly suitable for the infrastructure of blue water wind generator facility.
Description
Technical field
The present invention relates to Offshore Wind Power Generation Technology field more particularly to a kind of offshore wind turbine suitable for blue water are new
Type buoyant foundation.
Background technology
The wind-powered electricity generation energy is a kind of pollution-free, reproducible clean energy resource.Compared with the land wind-powered electricity generation energy, the offshore wind farm energy
With wind turbine power generation amount height, single machine installed capacity bigger, fan operation is more stable, wind power plant construction is excellent without land occupation etc.
Gesture starts the extensive concern by national energy authorities and industry in recent years.Practical experience shows to get over apart from coastline
Far, wind speed is bigger, and generated energy increase is more apparent, and the marine wind speed of offshore distance 10km is usually higher by about 25% than littoral.With tide
Between the exploitation degree of band and greater coasting area wind power resources be gradually saturated and energy demand is stepped up, Oversea wind power generation is from tide
Between band and greater coasting area to move towards blue water be inexorable trend.Shallow sea wind power field is closer far from coastline, build wind power plant easily with this
The other functions in marine site generate contradiction, and compared with shallow sea wind power field, deep-sea wind power plant is high with wind speed, wind shear is low, turbulent extent
The advantages such as small, the influence to seaway is also smaller, meanwhile, before the resources reserve amount of China deep-sea wind-powered electricity generation energy occupies the world
Row, the development prospect of offshore wind farm industry are wide.Therefore, deep-sea wind-power electricity generation is the inexorable trend of wind-powered electricity generation energy development.
With the increase of the depth of water, the dead weight of conventional fixed-type offshore wind turbine and project cost increase considerably, fixed sea
Upper fan foundation structure is far above the buoyant foundation structure of blue water in the cost of blue water, and buoyant foundation structure has
Mobility is good, quick detachable, the advantages that expiring recyclable recycling of being on active service.Therefore, in order to further develop the wind energy in deep-sea marine site
Resource, it is necessary to greatly develop buoyant foundation structure.The research of offshore wind turbine buoyant foundation structure is still in just both at home and abroad at present
Step section, citation form include mainly single column foundation structure, semi-submersible type foundation structure and tension leg type foundation structure.
Single column foundation structure is suitable for the higher offshore wind power system of center of gravity, structure simple structure, vertical
Wave-excited force is small, stability is preferable, but strut length is excessive, builds and installation is more difficult；Semi-submersible type foundation structure can be with
It builds on the coast, then towage is connect to appointed place with advance mounted anchoring system, Attention problems are at low cost but make
Of high cost, strong, the applicable depth of water range of capacity of anti-storm of semi-submersible type foundation structure is wide, but stability is poor；Tension leg type basis
Structural stability is preferable, dead load is light, generating set can be built and assemble on the coast, but tension anchoring system mounting process is multiple
It is miscellaneous, mounting cost is high, pretension is big by Lidar Equation.
Research institution of various countries and energy company are in theory analysis to the research of offshore wind turbine buoyant foundation structure at present
Or the stages such as model test, and China not yet starts to build deep-sea floating wind power facility.Therefore, wide in order to fully develop China
Marine wind energy resource, build the wind power facility that can be run in blue water, need excellent in conjunction with various buoyant foundation structures
Point develops the novel buoyant foundation structural system of the best offshore wind turbine of performance.
Invention content
The present invention, which integrates, proposes a kind of novel lattice offshore wind turbine buoyant foundation composite structure：Structure entirety center of gravity compared with
Low, centre of buoyancy is higher, horizontal distance of the ring pontoon away from structural focus farther out, after structures slope, righting moment of the buoyancy to center of gravity
Greatly, its overall stability is made to greatly improve.A kind of novel lattice offshore wind turbine buoyant foundation composite structure proposed by the present invention
Using lattice gin pole, the ocean current load acted on buoyant foundation can be significantly reduced, truss member is primarily subjected to axial direction
Pulling force or pressure, so as to make full use of the intensity of material, simple structure, vertical and overall stability are good, are a kind of completely new
Offshore wind turbine foundation structure type is highly suitable for the infrastructure of blue water wind generator facility, it is ensured that blue water
The Effec-tive Function of wind power facility.Structural system all using assembling mode of construction, is remarkably improved construction efficiency, ensures construction
Quality reduces working measure expense.
Technical scheme is as follows：
A kind of novel lattice offshore wind turbine buoyant foundation composite structure, the structure include wind turbine, tower, upper box body,
Lattice gin pole, contact truss, lower part box, hangs ring pontoon (can be empty steel pipe or concrete-filled double skin steel tube)
Chain line, pile foundation.Each limb difference injection upper box body of the lattice gin pole and lower part box certain length, and use
Peg and circumferential reinforcement are anchored；The lattice gin pole is connect by catenary with pile foundation；The structure exists
A Fans are arranged on lattice gin pole.
The upper box body is connected with ring pontoon by contacting truss；The contact truss is variable cross-section truss,
Its chord member injection upper box body and ring pontoon certain length, and anchored using peg and circumferential reinforcement.
The lattice gin pole, each limb part can be concrete filled steel tube or concrete-filled double skin steel tube, each
It is empty steel pipe to sew bar；The ring pontoon can be empty steel pipe or concrete-filled double skin steel tube.
The present invention has the advantages that compared with the existing technology：
(1) upper box body can be increased buoyancy and be improved overall structure using empty steel pipe or concrete-filled double skin steel tube
Centre of buoyancy, lower part box uses solid steel tube concrete, can reduce integrally-built center of gravity, integrally-built steady to improve
It is qualitative；
(2) horizontal distance of the ring pontoon away from structural focus farther out, after structures slope, righting moment of the buoyancy to center of gravity
Greatly, its overall stability is made to greatly improve；
(3) lattice gin pole is used, rod piece is primarily subjected to axial tension or pressure, so as to make full use of material
Intensity, while lattice gin pole is small by ocean current Loading Area, can significantly reduce the ocean current load acted on buoyant foundation；
(4) sky steel pipe or concrete-filled double skin steel tube can be used in tower, upper box body, ring pontoon, limb part, works as use
When concrete-filled double skin steel tube, steel pipe thickness can be effectively reduced, welding job amount is reduced, reduces steel using amount.
Description of the drawings
Fig. 1 is the overall schematic of the present invention；
Fig. 2 is the schematic diagram and sectional view of lattice gin pole of the present invention；
Fig. 3 is the schematic diagram that truss is contacted in the present invention；
Fig. 4 is the schematic diagram and cross-sectional view of middle and lower part babinet of the present invention；
Fig. 5 is concrete-filled double skin steel tube sectional view in the present invention；
Fig. 6 is contact chord member of truss and upper box body and ring pontoon connection diagram in the present invention；
Fig. 7 is lattice gin pole and lower part box connection diagram and cross-sectional view in the present invention.
In figure：1- wind turbines, 2- towers, 3- contacts truss, 4- lattices gin pole, 5- ring pontoons (can be empty steel pipe
Or concrete-filled double skin steel tube), 6- upper box bodies, 7- lower part box, 8- catenaries, 9- pile foundations, 10- limbs part, 11- sew
Bar, 12- chord members, 13- web members, 14- pegs, 15- circumferential reinforcements.
Specific implementation mode
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, the present invention is a kind of novel lattice offshore wind turbine buoyant foundation composite structure, it is related to Oversea wind
Technical field of power generation.The system includes wind turbine (1), tower (2), contact truss (3), lattice gin pole (4), ring pontoon
(5) (can be empty steel pipe or concrete-filled double skin steel tube), upper box body (6), lower part box (7), catenary (8), pile foundation
(9).The upper box body (6) is connected (3) with ring pontoon (5) by contacting truss；The lattice gin pole (4)
It is connect with pile foundation (9) by catenary (8)；The structure arranges a Fans on lattice gin pole (4).
As shown in figure 3, the contact truss (3) is variable cross-section truss；
As shown in fig. 6, chord member (12) injection upper box body (6) of the contact truss (3) and circumferential floating drum (5) are certain
Length, and anchored using peg (14) and circumferential reinforcement (15).
As shown in fig. 7, anchorage zone is reserved in the lower part box (7), and in each limb part of lattice gin pole
(10) anchoring section welds appropriate peg, is stretched into the reserved region of lower part box (7) and arranges appropriate circumferential reinforcement, finally poured
Concrete is built to be anchored.
The present invention provides a kind of novel lattice offshore wind turbine buoyant foundation composite structures, vertical using lattice center
Column can significantly reduce the ocean current load acted on buoyant foundation, and simple structure, vertical and overall stability are good, be a kind of complete
New offshore wind turbine foundation structure type, is highly suitable for the infrastructure of blue water wind generator facility, it is ensured that deep-sea
The Effec-tive Function of region wind power facility.
The above is only the preferred embodiments of the invention, but the invention is not limited in above-mentioned specific implementations
Scheme.One skilled in the relevant art without departing from the principle of the present invention, can also make several modifications, supplement
Or use similar fashion replacement instead, these should also be regarded as protection scope of the present invention.
Although being used more herein：1- wind turbines, 2- towers, 3- contacts truss, 4- lattices gin pole, 5- annulars
The terms such as floating drum, 6- upper box bodies, 7- lower part box, 8- catenaries, 9- pile foundations, but be not precluded using other terms can
It can property.The use of these items is only for more easily describing and explaining the essence of the present invention, it is construed as any one
The additional limitation of kind is disagreed with the spirit of the present invention.
Claims (5)
1. a kind of novel lattice offshore wind turbine buoyant foundation composite structure, is related to Offshore Wind Power Generation Technology field.The system
Including wind turbine (1), tower (2), contact truss (3), lattice gin pole (4), ring pontoon (5), upper box body (6), under
Portion's babinet (7), catenary (8), pile foundation (9).Each limb part (10) difference injection top of the lattice gin pole (4)
Babinet (6) and lower part box (7) certain length, and anchored using peg (14) and circumferential reinforcement (15)；The structure exists
Lattice gin pole arranges a Fans on (4).
2. novel lattice offshore wind turbine buoyant foundation according to claim 1 composite structure, it is characterised in that：Described
Tower (2) can be empty steel pipe or concrete-filled double skin steel tube；The lattice gin pole (4) is lattice column, each
Limb part (10) can be concrete filled steel tube or empty steel pipe, and it can be empty steel pipe respectively to sew bar (11)；The ring pontoon (5) can be sky
Steel pipe or concrete-filled double skin steel tube.
3. novel lattice offshore wind turbine buoyant foundation according to claim 1 composite structure, it is characterised in that：Described
Upper box body (6) is connected (3) with ring pontoon (5) by contacting truss；The contact truss (3) is variable cross-section truss,
Chord member (12) is solid steel tube concrete or empty steel pipe, and web member (13) is empty steel pipe；Contact truss (3) chord member (12) passes through
Enter upper box body (6) and ring pontoon (5) certain length, and is anchored using peg (14) and circumferential reinforcement (15).
4. novel lattice offshore wind turbine buoyant foundation according to claim 1 composite structure, it is characterised in that：Described
Upper box body (6) can be empty steel pipe or concrete-filled double skin steel tube, and lower part box (7) is solid steel tube concrete.
5. novel lattice offshore wind turbine buoyant foundation according to claim 1 composite structure, it is characterised in that：Described
Lattice gin pole (4) is connect by catenary (8) with pile foundation (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810315777.5A CN108316336A (en) | 2018-04-10 | 2018-04-10 | A kind of novel lattice offshore wind turbine buoyant foundation composite structure |
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| CN201810315777.5A CN108316336A (en) | 2018-04-10 | 2018-04-10 | A kind of novel lattice offshore wind turbine buoyant foundation composite structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296502A (en) * | 2018-11-06 | 2019-02-01 | 重庆大学 | A kind of prestressing force concrete-filled double skin steel tube wind-power tower and combinations thereof formula basis |
| CN109322795A (en) * | 2018-11-30 | 2019-02-12 | 国粤（深圳）科技投资有限公司 | A kind of Large marine wind energy conversion system buoyant foundation |
| CN109372701A (en) * | 2018-11-01 | 2019-02-22 | 重庆大学 | It is a kind of based on suspension cable-girder steel self equilibrium systems wind-power tower |
| CN113250229A (en) * | 2020-07-28 | 2021-08-13 | 裴广华 | Pile-free self-stabilizing base of offshore wind power tower |
| CN113374649A (en) * | 2021-06-23 | 2021-09-10 | 同济大学 | Single-pile type offshore floating type fan vibration reduction control structure |
| CN113846665A (en) * | 2021-10-15 | 2021-12-28 | 中国地质大学（武汉） | Combined type offshore wind turbine foundation suitable for deepwater conditions and installation method thereof |
| WO2022058476A1 (en) | 2020-09-18 | 2022-03-24 | Fred. Olsen Ocean Ltd. | Wind turbine with floating foundation |
| CN114348193A (en) * | 2022-01-13 | 2022-04-15 | 东北石油大学 | Self-generating deep sea movable ocean platform system and construction method thereof |
| CN114572356A (en) * | 2022-03-25 | 2022-06-03 | 重庆大学 | Floating type wind power foundation with steel-concrete mixed structure |
| CN115432131A (en) * | 2022-09-16 | 2022-12-06 | 哈尔滨工程大学 | Offshore wind power hydrogen production floating platform |
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| CN208328972U (en) * | 2018-04-10 | 2019-01-04 | 重庆大学 | A kind of novel lattice offshore wind turbine buoyant foundation composite structure |
| CN109941396A (en) * | 2019-03-22 | 2019-06-28 | 华中科技大学 | A kind of fork mooring wire type blower anchoring system and offshore wind energy plant |
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| KR20130123047A (en) * | 2012-05-02 | 2013-11-12 | 한국해양과학기술원 | Single complex hybrid foundation type offshore wind tower |
| KR20140107048A (en) * | 2013-02-27 | 2014-09-04 | 목포대학교산학협력단 | Manufacturing method for the offshore wind turbine structure |
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| CN204979164U (en) * | 2015-06-29 | 2016-01-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Floating wind turbine foundation and floating wind turbine generator system |
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| CN107235125A (en) * | 2017-05-24 | 2017-10-10 | 浙江大学 | A kind of multicolumn spar types floating fan platform |
| CN208328972U (en) * | 2018-04-10 | 2019-01-04 | 重庆大学 | A kind of novel lattice offshore wind turbine buoyant foundation composite structure |
| CN109941396A (en) * | 2019-03-22 | 2019-06-28 | 华中科技大学 | A kind of fork mooring wire type blower anchoring system and offshore wind energy plant |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372701A (en) * | 2018-11-01 | 2019-02-22 | 重庆大学 | It is a kind of based on suspension cable-girder steel self equilibrium systems wind-power tower |
| CN109296502A (en) * | 2018-11-06 | 2019-02-01 | 重庆大学 | A kind of prestressing force concrete-filled double skin steel tube wind-power tower and combinations thereof formula basis |
| CN109322795A (en) * | 2018-11-30 | 2019-02-12 | 国粤（深圳）科技投资有限公司 | A kind of Large marine wind energy conversion system buoyant foundation |
| CN113250229A (en) * | 2020-07-28 | 2021-08-13 | 裴广华 | Pile-free self-stabilizing base of offshore wind power tower |
| WO2022058476A1 (en) | 2020-09-18 | 2022-03-24 | Fred. Olsen Ocean Ltd. | Wind turbine with floating foundation |
| CN113374649A (en) * | 2021-06-23 | 2021-09-10 | 同济大学 | Single-pile type offshore floating type fan vibration reduction control structure |
| CN113846665A (en) * | 2021-10-15 | 2021-12-28 | 中国地质大学（武汉） | Combined type offshore wind turbine foundation suitable for deepwater conditions and installation method thereof |
| CN113846665B (en) * | 2021-10-15 | 2022-08-09 | 中国地质大学（武汉） | Combined type offshore wind turbine foundation suitable for deepwater conditions and installation method thereof |
| CN114348193A (en) * | 2022-01-13 | 2022-04-15 | 东北石油大学 | Self-generating deep sea movable ocean platform system and construction method thereof |
| CN114348193B (en) * | 2022-01-13 | 2024-04-05 | 东北石油大学 | Self-generating deep-sea movable ocean platform system and construction method thereof |
| CN114572356A (en) * | 2022-03-25 | 2022-06-03 | 重庆大学 | Floating type wind power foundation with steel-concrete mixed structure |
| CN115432131A (en) * | 2022-09-16 | 2022-12-06 | 哈尔滨工程大学 | Offshore wind power hydrogen production floating platform |
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