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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- 230000005484 gravity Effects 0.000 title claims description 20
- 230000000694 effects Effects 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 239000013049 sediment Substances 0.000 abstract 2
- 238000009991 scouring Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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Abstract
一种新型重力式海上风电基础装置属于海洋工程技术领域，包括承台、立柱、肋板、裙边和导流板，承台下安装有立柱，立柱下端侧面焊接有肋板，裙边环绕肋板一圈焊接在肋板上，裙边上设有导流板。裙边与立柱成斜45°角，高度与肋板相同；裙边表面一侧垂直等间距设置有五块导流板对来流起到扰动作用，达到减少冲刷的作用；承台呈倒圆台形；立柱下端侧面均布有四块肋板。本装置通过倾斜的裙边并嵌入地基一定深度，可以使来流顺着坡度流经基础结构，减少回流对基础底部泥沙的冲刷，保护裙边覆盖范围内的泥沙，增加了基础的稳定性。
A new type of gravity-type offshore wind power foundation device belongs to the technical field of marine engineering. It includes a cap, a column, a rib, a skirt and a deflector. The plate is welded on the rib plate in one circle, and a deflector is arranged on the skirt. The skirt is inclined at an angle of 45° to the column, and the height is the same as that of the rib; five deflectors are arranged vertically and equidistantly on one side of the skirt to disturb the incoming flow and reduce scour; the cap is rounded It is in the shape of a table; there are four ribs evenly distributed on the side of the lower end of the column. This device is embedded into the foundation with a certain depth through the inclined skirt, which can make the incoming flow flow through the foundation structure along the slope, reduce the scouring of the sediment at the bottom of the foundation by backflow, protect the sediment within the coverage of the skirt, and increase the stability of the foundation. sex.
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 |
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| CN102493478A true CN102493478A (en) | 2012-06-13 |
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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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Cited By (8)
| 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 combined with inverted cone and independent column |
| 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 |
| CN111605663A (en) * | 2020-06-29 | 2020-09-01 | 华电重工股份有限公司 | Scour prevention structure and sit end formula boats and ships |
| CN111664060A (en) * | 2020-05-27 | 2020-09-15 | 南方科技大学 | Offshore wind turbine foundation anti-scouring structure |
| 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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| DK200000612A (en) * | 2000-04-12 | 2001-09-10 | Spaencom As | Wind turbine foundation and method for mounting it |
| 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 |
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| 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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2011
- 2011-12-16 CN CN2011104207178A patent/CN102493478A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (12)
| 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 combined with inverted cone and independent column |
| 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 |
| CN111664060A (en) * | 2020-05-27 | 2020-09-15 | 南方科技大学 | Offshore wind turbine foundation anti-scouring structure |
| CN111605663A (en) * | 2020-06-29 | 2020-09-01 | 华电重工股份有限公司 | Scour prevention structure and sit end formula boats and ships |
| 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 |