CN202768300U - Double-tier concentric multi-pile foundation for offshore wind turbines - Google Patents
Double-tier concentric multi-pile foundation for offshore wind turbines Download PDFInfo
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- CN202768300U CN202768300U CN2012205096435U CN201220509643U CN202768300U CN 202768300 U CN202768300 U CN 202768300U CN 2012205096435 U CN2012205096435 U CN 2012205096435U CN 201220509643 U CN201220509643 U CN 201220509643U CN 202768300 U CN202768300 U CN 202768300U
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- stake
- supporting leg
- leg pipe
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- offshore wind
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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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Abstract
The utility model discloses a double-tier concentric multi-pile foundation for offshore wind turbines. The double-tier concentric multi-pile foundation for offshore wind turbines comprises at least two outer piles, at least two inner piles, outer guide tube rack support leg tubes, and inner guide tube rack support leg tubes, wherein the outer and inner guide tube rack support leg tubes correspond to the outer and inner piles respectively. The outer and inner piles are nested into the corresponding guide tube rack support leg tubes respectively and are fixedly connected with the leg tubes. The double-tier concentric multi-pile foundation for offshore wind turbines further comprises a tubular joint section. The outer and inner piles are distributed on two tiers of different concentric circles by centering on the tubular joint section. At least one tier of horizontal supports is disposed between the outer and inner guide tube rack support leg tubes. Each of the outer guide tube rack support leg tubes, the inner guide tube rack support leg tubes and the tubular joint section is fixedly connected with the diagonal supports through horizontal supports. The double-tier concentric multi-pile foundation for offshore wind turbines is small in diameter and convenient to construct and install, and is especially applicable to 3MW-12MW offshore wind turbines in sea areas 10-100m deep.
Description
Technical field
The utility model relates to the offshore wind turbine field, particularly, relates to the many pile foundations of the double-deck concentric circle of a kind of offshore wind turbine.
Background technique
The Oversea wind aboundresources.Usually the marine wind speed of offshore 10km exceeds 25% than bank is land, and the wind resource in zone, deep-sea is than greater coasting area horn of plenty more.According to statistics, U.S. marine site reaches 1533GW in the Oversea wind resource at the depth of water 60～900m place, and the waters of coastal waters 0～30m only has 430GW.According to the research of the mechanisms such as Energy Research Institute of the National Development and Reform Commission, CHINESE OFFSHORE 10m, 20m and the 30m depth of water are about respectively 1 * 10 with interior marine site wind energy resources
8KW, 3 * 10
8KW and 4.9 * 10
8KW.Calculate in proportion, the offshore wind energy resource at deep-sea 60～900m place will approximately have l7.4 * 10
8KW.The Oversea wind power generation development prospect is wide.
At present, the operation of having rolled off the production line of the large capacity wind-powered electricity generation unit of 5MW and 6MW, many wind-powered electricity generation enterprises are all at development 10MW and above vast capacity wind-powered electricity generation unit, and combined power being is is being researched and developed 12MW high-temperature superconductive offshore wind turbine.
10 meters of the unique marine wind electric field Donghai Bridge in Shanghai wind energy turbine set water depth deficiencies of China, employing be High-Rise Pile Cap Foundation, wind turbine pool-size 3MW; The Jiangsu Rudong intertidal belt wind electric field adopts is the bases such as common three, four, and stake is directly squeezed into ocean bottom soil by upper support leg pipe, and the wind turbine pool-size is all below 3MW.
Along with the increase of the depth of water and the increase of wind turbine pool-size, the quantity of blower foundation stake and diameter will correspondingly increase.This has aggravated the difficulty of marine pile manufacturing, installation greatly, even can be because constructing above the erectility limit.
The model utility content
The purpose of this utility model is to provide a kind of diameter less, construction, easy for installation, and be applicable to 10-100 rice depth of water marine site, the many pile foundations of double-deck concentric circle of 3MW-12MW offshore wind turbine.
To achieve these goals, the utility model adopts following technological scheme:
The many pile foundations of the double-deck concentric circle of a kind of offshore wind turbine comprise at least 2 outer stakes, at least 2 internal layer stakes and outer conductor frame supporting leg pipe, the inner conductor frame supporting leg pipe corresponding with described outer stake, internal layer stake difference; Described outer stake, internal layer stake are inserted in respectively in the corresponding jacket supporting leg pipe and with it and are fixedly connected with; Also comprise a tubular linkage section, take the center of described tubular linkage section as the center of circle, described outer stake, internal layer stake are distributed on the two-layer different concentric circumference; Have 1 layer of horizontal support at least between described outer conductor frame supporting leg pipe and the inner conductor frame supporting leg pipe; And described outer conductor frame supporting leg pipe, inner conductor frame supporting leg pipe all are fixedly connected with bearing diagonal by horizontal support with the tubular linkage section.
Further, described outer stake, internal layer stake are arranged in circumference equal intervals separately respectively, and described outer stake is staggered with the internal layer stake.
Further, also be provided with at least one deck horizontal support between the described inner conductor frame supporting leg pipe.
Further, also be provided with one or more layers bearing diagonal between described outer conductor frame supporting leg pipe and the inner conductor frame supporting leg pipe.
Further, described outer stake has 2 to 4, and accordingly, described internal layer stake has 2 to 4.
Further, all be fixedly connected with by the mode of being in the milk or weld between described outer stake, internal layer stake and the corresponding jacket supporting leg pipe.
Further, described jacket supporting leg pipe is vertical or has certain inclination angle.
Further, described tubular linkage section top is provided with inspection platform, and the end face of described tubular linkage section is higher than half height that highest water level adds wave height.
Further, described outer stake, internal layer stake diameter are Φ 1000-Φ 2000mm; Accordingly, described outer conductor frame supporting leg pipe, inner conductor frame supporting leg pipe diameter are Φ 1200-Φ 2500mm; Described horizontal support and bearing diagonal diameter are Φ 300-Φ 1500mm.
Further, described many pile foundation integral body is the steel frame construction.
The utility model is owing to taking above technological scheme, and it has the following advantages:
1, because the utility model adopts the many pile foundations of double-deck concentric circle, compare with common pile foundation, the diameter of stake is less, construction, easy for installation.
2, owing to using the many pile foundations of double-deck concentric circle, can greatly improve the bearing capacity of offshore wind turbine foundation, can be installed to offshore wind turbine the marine site of tens meters of the depth of waters even 100 meters, can support the large-scale wind electricity unit of several megawatts even tens megawatts, greatly improve generating efficiency.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is that the utility model is applied to marine elevation;
Fig. 2 is the planimetric map of the utility model embodiment (six patterns);
Fig. 3 is the planimetric map of the utility model embodiment (four patterns).
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Embodiment 1
The many pile foundations of the double-deck concentric circle of a kind of offshore wind turbine of the present utility model, integral body is the steel frame construction.Take six patterns as example, as shown in Figure 1 and Figure 2, comprise 1,3 internal layer stake 2 of 3 outer stakes, outer stake 1 and internal layer stake 2 lower ends are all deeply to the following supporting course of sea bed mud face, also comprise and outer stake 1, internal layer stake 2 corresponding outer conductor frame supporting leg pipe 3, inner conductor frame supporting leg pipe 4 respectively, outer stake 1, internal layer stake 2 are inserted in respectively in the corresponding jacket supporting leg pipe and are fixedly connected with by grouting or the mode of welding with it; These many pile foundations also comprise a tubular linkage section (linkage section steel cylinder 12), take the center of linkage section steel cylinder 12 as the center of circle, outer stake 1, internal layer stake 2 are distributed on the two-layer different concentric circumference, 36 meters of the diameters of outer stake 1 place circumference, 20 meters of the diameters of internal layer stake 2 place circumference.
Wherein, be provided with horizontal support 5 and bearing diagonal 6 between outer conductor frame supporting leg pipe 3 and the inner conductor frame supporting leg pipe 4, wherein horizontal support 5 has one deck at least, and bearing diagonal 6 can not or have at least one deck; Be provided with horizontal support 7 between the inner conductor frame supporting leg pipe 4, horizontal support 7 has one deck at least; Outer conductor frame supporting leg pipe 3 is fixedly connected with linkage section steel cylinder 12 with bearing diagonal 9 by horizontal support 8; Inner conductor frame supporting leg pipe 4 is fixedly connected with linkage section steel cylinder 12 with bearing diagonal 11 by horizontal support 10, and linkage section steel cylinder 12 tops are provided with inspection platform, and the upper end is connected with offshore fan tower barrel by flange.
Jacket supporting leg pipe in above-described embodiment, stake difference be processing factory's processing and fabricating by land, transport to on-the-spot marine site with boats and ships, place first jacket supporting leg pipe, leveling is complete, with floating pile driver stake is squeezed into ocean bottom soil along the center of jacket supporting leg pipe, then perfusion grouting material or welding between stake and jacket supporting leg pipe, both just link together securely.The degree of depth that ocean bottom soil is squeezed in stake is definite with the factors such as size of hydrologic condition, blower fan according to the geology in concrete marine site.
In the above-described embodiments, outer stake 1, internal layer stake 2 can be arranged in circumference equal intervals separately respectively, and outer stake 1 is staggered with internal layer stake 2.
In the above-described embodiments, jacket supporting leg pipe can vertically arrange or have certain inclination angle.
In the above-described embodiments, linkage section steel cylinder 12 is the major diameter steel cylinder, can be designed to equal diameter or straighten the footpath, and end face is higher than half height that highest water level adds wave height.
In the above-described embodiments, outer stake 1 can be identical with internal layer stake 2 sizes, also can be different; Outer conductor frame supporting leg pipe 3 can be identical with inner conductor frame supporting leg pipe 4 sizes, also can be different; Horizontal support and bearing diagonal can be designed to equal diameter or straighten the footpath.Take the triangle pattern as example, preferred dimensional range is: outer stake 1, internal layer stake 2 diameters are Φ 11000-Φ 2000mm; Accordingly, outer conductor frame supporting leg pipe 3, inner conductor frame supporting leg pipe 4 diameters are Φ 1200-Φ 2500mm; Horizontal support and bearing diagonal diameter are Φ 300-Φ 1500mm.
Above-described embodiment has been enumerated six patterns, and outer stake 1 and internal layer stake 2 in many pile foundations of the present utility model also all can be 2 or 4.
The present embodiment is the double-deck many pile foundations of concentric circle (four patterns) of a kind of offshore wind turbine, as shown in Figure 3, be with embodiment 1 difference, outer stake 1 and internal layer stake 2 and corresponding outer conductor frame supporting leg pipe 3, inner conductor frame supporting leg pipe 4 thereof are respectively 2, and do not adopt horizontal support to connect between inner conductor frame supporting leg pipe 4.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technological scheme that previous embodiment is put down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the many pile foundations of the double-deck concentric circle of an offshore wind turbine is characterized in that, comprise at least 2 outer stakes, at least 2 internal layer stakes and outer conductor frame supporting leg pipe, the inner conductor frame supporting leg pipe corresponding with described outer stake, internal layer stake difference; Described outer stake, internal layer stake are inserted in respectively in the corresponding jacket supporting leg pipe and with it and are fixedly connected with; Also comprise a tubular linkage section, take the center of described tubular linkage section as the center of circle, described outer stake, internal layer stake are distributed on the two-layer different concentric circumference;
Have 1 layer of horizontal support at least between described outer conductor frame supporting leg pipe and the inner conductor frame supporting leg pipe; And described outer conductor frame supporting leg pipe, inner conductor frame supporting leg pipe all are fixedly connected with bearing diagonal by horizontal support with the tubular linkage section.
2. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, described outer stake, internal layer stake are arranged in circumference equal intervals separately respectively, and described outer stake is staggered with the internal layer stake.
3. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, also are provided with at least one deck horizontal support between the described inner conductor frame supporting leg pipe.
4. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, also are provided with one or more layers bearing diagonal between described outer conductor frame supporting leg pipe and the inner conductor frame supporting leg pipe.
5. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, described outer stake has 2 to 4, and accordingly, described internal layer stake has 2 to 4.
6. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, all are fixedly connected with by the mode of being in the milk or weld between described outer stake, internal layer stake and the corresponding jacket supporting leg pipe.
7. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, described jacket supporting leg pipe is vertical or has certain inclination angle.
8. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, described tubular linkage section top is provided with inspection platform, and the end face of described tubular linkage section is higher than half height that highest water level adds wave height.
9. the many pile foundations of the double-deck concentric circle of offshore wind turbine according to claim 1 is characterized in that, described outer stake, internal layer stake diameter are Φ 1000-Φ 2000mm; Accordingly, described outer conductor frame supporting leg pipe, inner conductor frame supporting leg pipe diameter are Φ 1200-Φ 2500mm; Described horizontal support and bearing diagonal diameter are Φ 300-Φ 11500mm.
10. the many pile foundations of the double-deck concentric circle of each described offshore wind turbine is characterized in that according to claim 1-9, and described many pile foundation integral body are the steel frame construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205096435U CN202768300U (en) | 2012-09-29 | 2012-09-29 | Double-tier concentric multi-pile foundation for offshore wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205096435U CN202768300U (en) | 2012-09-29 | 2012-09-29 | Double-tier concentric multi-pile foundation for offshore wind turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768300U true CN202768300U (en) | 2013-03-06 |
Family
ID=47774881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205096435U Expired - Lifetime CN202768300U (en) | 2012-09-29 | 2012-09-29 | Double-tier concentric multi-pile foundation for offshore wind turbines |
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| CN (1) | CN202768300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696915A (en) * | 2013-12-12 | 2014-04-02 | 天津大学 | Cylinder type connecting structure of offshore wind driven generator tower cylinder and guide pipe frame base |
| CN112161611A (en) * | 2020-09-07 | 2021-01-01 | 中铁大桥局集团第五工程有限公司 | In-plant concentricity positioning method for offshore wind power guide frame |
-
2012
- 2012-09-29 CN CN2012205096435U patent/CN202768300U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696915A (en) * | 2013-12-12 | 2014-04-02 | 天津大学 | Cylinder type connecting structure of offshore wind driven generator tower cylinder and guide pipe frame base |
| CN112161611A (en) * | 2020-09-07 | 2021-01-01 | 中铁大桥局集团第五工程有限公司 | In-plant concentricity positioning method for offshore wind power guide frame |
| CN112161611B (en) * | 2020-09-07 | 2022-03-18 | 中铁大桥局集团第五工程有限公司 | In-plant concentricity positioning method for offshore wind power guide frame |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |