CN102493478A - Novel gravity offshore wind power foundation device - Google Patents
Novel gravity offshore wind power foundation device Download PDFInfo
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- CN102493478A CN102493478A CN2011104207178A CN201110420717A CN102493478A CN 102493478 A CN102493478 A CN 102493478A CN 2011104207178 A CN2011104207178 A CN 2011104207178A CN 201110420717 A CN201110420717 A CN 201110420717A CN 102493478 A CN102493478 A CN 102493478A
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Abstract
A novel gravity offshore wind power foundation device belongs to the technical field of marine engineering and comprises a cushion cap, a vertical column, four rib plates, a skirt and guide plates, wherein the vertical column is mounted below the cushion cap, the rib plates are welded to the lateral side of the lower end of the vertical column, the skirt around the rib plates is welded to the rib plates, and the guide plates are disposed on the skirt. The skirt forms an inclined angle 45 degrees with the vertical column and is as high as the rib plates. Five rib plates are perpendicularly disposed at equal intervals on one side of the surface of the skirt to function in disturbance, so that erosion is relieved. The cushion cap is in the shape of an inverted cone frustum. The rib plates are evenly distributed on the lateral side of the lower end of the vertical column. By the aid of the inclined skirt embedded into a foundation by a certain depth, coming flow can flow through the foundation structure along a slope, erosion of sediment at the bottom of the foundation by backflow is reduced, the sediment covered by the skirt is protected, and stability of the foundation is improved.
Description
Technical field
The present invention relates to a kind of novel gravity offshore wind farm base apparatus, mainly is a kind of novel gravity offshore wind farm base apparatus, belongs to field of ocean engineering.
Background technology
Wind resource is a kind of free of contamination clean energy resource.In recent years, offshore wind farm develops rapidly in the world, and comparing other conventional energy resource wind-powered electricity generations has following advantage:
(1) economize on resources, pollution-free.Marine wind electric field is built the coastal waters beach in more, and the resource that do not occupy cultivated land does not produce any pollutant in the power generation process.
(2) operation cost is low.The required energy of wind-power electricity generation comes from wind, compares the coal that thermoelectricity needs lot of consumption, and cost is very low in the operation process, only needs a spot of auxiliary equipment and regular maintenance cost.
(3) marine wind speed is high, and production capacity is big.The high and low wind shear of marine wind speed allows the bigger blower fan of single-machine capacity, and Gao Zheke reaches 5MW-10MW.
Offshore wind farm foundation structure has following several kinds of conventional version: the single pile formula, be applicable to the 0-30m depth of water, and scour resistance is good, and installation cost is high; Jacket-type is applicable to the marine site of the depth of water greater than 30m, and supporting capacity is high, and steel quantity consumption is high, and cost is high; Gravity is applicable to the following depth of water handpan of 10m, and scour resistance is poor, durability, good stability, and cost is low.
The cost on offshore wind farm basis occupies very big proportion in total cost, be higher than the land cost of electricity-generating far away, and the cost that how to reduce foundation structure is the focus that people are concerned about always.Gravity is because its advantage simple in structure, that construction cost is low becomes one of priority option, but traditional gravity type foundation is because it from great, can only be applied to handpans such as rock.China coastal many weak, wash away ground, make the scope of application of gravity type foundation reduce greatly.
In order to overcome the shortcoming of traditional gravity wind-powered electricity generation foundation structure, have the scholar that the traditional structure pattern has been carried out cleverly improving, such as the shape that changes sole plate (like hexagonal base; The octagon base); Increase vertical shirt rim and embed ground certain depth etc., the scour resistance on the basis that purpose is to increase, but tried checking; The direct reflection scour substrate silt of incoming flow is caused in vertical shirt rim, and scour resistance is unsatisfactory.Adopt the basis of hexagon or octagon pedestal owing to cause the acute variation of fluid more greatly in each angle place's structural change, cause on the corner wash away more serious.Be a urgent problem at present.
Summary of the invention
The purpose of this invention is to provide a kind of novel gravity offshore wind farm base apparatus.
The problem that the present invention will solve is the existing unsatisfactory deficiency of wind-powered electricity generation base apparatus scour resistance.
For realizing the object of the invention, the technical scheme that the present invention adopts is:
A kind of novel gravity offshore wind farm base apparatus comprises cushion cap, column, floor, shirt rim and deflector, under the cushion cap column is installed, and the column lower end side is welded with floor, and the shirt rim is welded on the floor around floor one circle, and the shirt rim is provided with deflector.
The shirt rim becomes oblique 45 with column, height is identical with floor; The vertical spaced set of skirt face one side has five deflectors that incoming flow is played perturbation action, reaches to reduce the effect of washing away; Cushion cap is reverse frustoconic; The column lower end side is evenly equipped with four floors.
Advantage of the present invention is: this device solves the bottleneck used of restriction gravity type foundation, the scope of application of gravity type foundation structure is enlarged greatly, to reduce the total cost of offshore wind farm exploitation; Through the shirt rim that tilts and embed the ground certain depth, can make incoming flow along slope current through foundation structure, reduce and reflux the washing away of foundation bottom silt, the silt in the coverage of protection shirt rim has increased basic stability.In the skirt face of meeting the flow direction deflector of some is set, can disturbs incoming flow, play the effect that consumes stream energy, place rubble in the cavity that floor forms, to reach the effect that better consumption comes stream energy.
Description of drawings
Fig. 1 is the stereogram of a kind of novel gravity offshore wind farm base apparatus of the present invention;
Among the figure: 1, cushion cap 2, column 3, floor 4, shirt rim 5, deflector.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
A kind of novel gravity offshore wind farm base apparatus as shown in the figure; Comprise cushion cap 1, column 2, floor 3, shirt rim 4 and deflector 5, cushion cap is equipped with column 21 time, and column 2 lower end side are welded with floor 3; Shirt rim 4 is welded on the floor 3 around floor 3 one circles, and shirt rim 4 is provided with deflector 5.
The 2 one-tenth oblique 45s in shirt rim 4 and column; Height is identical with floor 3; Compare upright shirt rim through basin test checking, 45 ° shirt rim 4 scour resistances of tilting are better, this be since uprightly the shirt rim cause the direct reflection of incoming flow to cause washing away to foundation bottom; Cause basic unstability until the silt of emptying foundation bottom, and the shirt rim that tilts can be reduced effectively and washed away; The shirt rim vertical spaced set of 4 surperficial sides has five deflectors 5, and incoming flow is played perturbation action, reaches to reduce the effect wash away, owing to only wash away meeting to flow to produce, need not flow at the back of the body and is provided with; Cushion cap 1 is reverse frustoconic, to increase structural strength; Column 2 lower end side are evenly equipped with four floors 3, are used to fill building stones in the space, alleviating overall structure weight, and play the effect that consumes stream energy.
The operating principle of this device: after this device installs; 1/4 of shirt rim 4 is imbedded under the sea bed; Set up wind power generation plant on the cushion cap 1,, thereby reduce washing away substrate silt because the existence at 4 angle of slope, shirt rim flows on the current direction when making incoming flow through pedestal and do not form direct reverse flow.Shirt rim 4 embeds the silt certain depth with identical angle, and the interior silt of the scope that shirt rim 4 is covered exempts from directly and washes away, and 4 surfaces, shirt rim of meeting the flow direction are provided with deflector 5 by a determining deviation, and incoming flow is played perturbation action, reach to reduce the effect of washing away.
Claims (5)
1. novel gravity offshore wind farm base apparatus; Comprise cushion cap (1), column (2), floor (3), shirt rim (4) and deflector (5); It is characterized in that: column (2) is installed under the cushion cap (1); Column (2) lower end side is welded with floor (3), and shirt rim (4) are welded on the floor (3) around floor (3) one circles, and shirt rim (4) are provided with deflector (5).
2. a kind of novel gravity offshore wind farm base apparatus according to claim 1, it is characterized in that: said shirt rim (4) become oblique 45 with column (2), and height is identical with floor (3).
3. a kind of novel gravity offshore wind farm base apparatus according to claim 1 is characterized in that: the vertical spaced set of said shirt rim (4) surperficial side has five deflectors (5), and incoming flow is played perturbation action, reaches to reduce the effect of washing away.
4. a kind of novel gravity offshore wind farm base apparatus according to claim 1, it is characterized in that: said cushion cap (1) is reverse frustoconic.
5. a kind of novel gravity offshore wind farm base apparatus according to claim 1, it is characterized in that: said column (2) lower end side is evenly equipped with four floors (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104207178A CN102493478A (en) | 2011-12-16 | 2011-12-16 | Novel gravity offshore wind power foundation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104207178A CN102493478A (en) | 2011-12-16 | 2011-12-16 | Novel gravity offshore wind power foundation device |
Publications (1)
| Publication Number | Publication Date |
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| CN102493478A true CN102493478A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104207178A Pending CN102493478A (en) | 2011-12-16 | 2011-12-16 | Novel gravity offshore wind power foundation device |
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| CN (1) | CN102493478A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936901A (en) * | 2012-10-30 | 2013-02-20 | 广东明阳风电产业集团有限公司 | Wind power tower foundation with inverted frustum and independent column combined |
| CN103469829A (en) * | 2013-09-30 | 2013-12-25 | 山东电力工程咨询院有限公司 | Anti-scouring device of offshore wind power base structure |
| CN109372006A (en) * | 2018-11-27 | 2019-02-22 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine foundation scour protection structure and its construction method |
| CN110422297A (en) * | 2019-08-09 | 2019-11-08 | 浙江海洋大学 | A kind of inhibition device of semisubmersible platform heaving |
| CN112814013A (en) * | 2021-01-04 | 2021-05-18 | 刘财秀 | Offshore wind turbine single pile foundation with communicating assembly |
| WO2023151318A1 (en) * | 2022-02-11 | 2023-08-17 | 上海勘测设计研究院有限公司 | Self-maintaining anti-scouring device for offshore wind farm pile foundation |
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| CN101539118A (en) * | 2009-05-08 | 2009-09-23 | 中国海洋大学 | Passive antiscour base of basic structure of gravity-type offshore wind turbine |
| CN201390974Y (en) * | 2009-04-10 | 2010-01-27 | 中国水电顾问集团华东勘测设计研究院 | Foundation structure of wind-driven generator for coastal intertidal zones |
| CN101985838A (en) * | 2009-10-20 | 2011-03-16 | 中国石油大学(华东) | Method for preventing and controlling pile foundation washout of offshore oil platform |
| CN202390851U (en) * | 2011-12-16 | 2012-08-22 | 浙江海洋学院 | Novel gravity type offshore wind power base device |
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| DE2819299A1 (en) * | 1977-05-04 | 1978-11-09 | Gustav Felix Ing Stof | Bridge pillar foundation for river bed - has oblique sides below bend level and baffles protruding for preventing flow erosion |
| DK200000612A (en) * | 2000-04-12 | 2001-09-10 | Spaencom As | Wind turbine foundation and method for mounting it |
| CN201390974Y (en) * | 2009-04-10 | 2010-01-27 | 中国水电顾问集团华东勘测设计研究院 | Foundation structure of wind-driven generator for coastal intertidal zones |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936901A (en) * | 2012-10-30 | 2013-02-20 | 广东明阳风电产业集团有限公司 | Wind power tower foundation with inverted frustum and independent column combined |
| CN103469829A (en) * | 2013-09-30 | 2013-12-25 | 山东电力工程咨询院有限公司 | Anti-scouring device of offshore wind power base structure |
| CN103469829B (en) * | 2013-09-30 | 2016-02-10 | 山东电力工程咨询院有限公司 | A kind of Anti-scouring device of offshore wind power foundation structure |
| CN109372006A (en) * | 2018-11-27 | 2019-02-22 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind turbine foundation scour protection structure and its construction method |
| CN109372006B (en) * | 2018-11-27 | 2023-11-10 | 中国电建集团华东勘测设计研究院有限公司 | Scour prevention protection structure for offshore wind turbine foundation and construction method thereof |
| CN110422297A (en) * | 2019-08-09 | 2019-11-08 | 浙江海洋大学 | A kind of inhibition device of semisubmersible platform heaving |
| CN110422297B (en) * | 2019-08-09 | 2021-01-26 | 浙江海洋大学 | Semi-submersible platform heaving motion restraining device |
| CN112814013A (en) * | 2021-01-04 | 2021-05-18 | 刘财秀 | Offshore wind turbine single pile foundation with communicating assembly |
| CN112814013B (en) * | 2021-01-04 | 2023-10-10 | 贝克曼沃玛金属技术（青岛）有限公司 | Marine fan single pile foundation with communication assembly |
| WO2023151318A1 (en) * | 2022-02-11 | 2023-08-17 | 上海勘测设计研究院有限公司 | Self-maintaining anti-scouring device for offshore wind farm pile foundation |
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Application publication date: 20120613 |