CN103147932A - Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section - Google Patents
Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section Download PDFInfo
- Publication number
- CN103147932A CN103147932A CN2013100591859A CN201310059185A CN103147932A CN 103147932 A CN103147932 A CN 103147932A CN 2013100591859 A CN2013100591859 A CN 2013100591859A CN 201310059185 A CN201310059185 A CN 201310059185A CN 103147932 A CN103147932 A CN 103147932A
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- CN
- China
- Prior art keywords
- stiffening ring
- changeover portion
- linkage structure
- wind generating
- modified model
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H2012/006—Structures with truss-like sections combined with tubular-like sections
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- Wind Motors (AREA)
Abstract
The invention discloses an improved connection structure for a WTGS tower and a basic connection transition section. The structure comprises a comprises a fan base provided with a basic platform; the transition section connected with the tower is arranged on the basic platform; a reinforcing ring is arranged on the transition section; the inner side of the reinforcing ring is connected with the outer wall of the transition section; and the lower side of the reinforcing ring is connected with the basic platform through a plurality of supports. The invention aims at providing the improved connection structure for the WTGS tower and the basic connection transition section. According to the improved connection structure, the reinforcing ring is added in a connection position of the transition section and the supports and is connected with the supports and the transition section directly, therefore, the connection rigidity between the upper ends of the supports and the transition section is enhanced, the load of a fan can be transmitted uniformly to each support, the stress concentration in the connection position of the upper ends of the supports and the transition section is reduced, and the bending and torsion resistant capacities of the tower and the basic connection transition section are improved.
Description
[technical field]
The present invention relates to a kind of tower barrel of wind generating set and jacket foundation connection structure, particularly a kind of tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis, belongs to wind power generation field.
[background technique]
Offshore wind farm is greatly developed, and for well utilizing offshore wind speed and saving cost, the electric motor power of offshore wind turbine unit is increasing, and the application of large megawatt-level wind unit becomes a trend of offshore wind farm development.Increase along with the unit electric motor power, the physical dimension of unit also increases thereupon, and is also higher to the bearing capacity requirement on tower cylinder and basis, therefore, connect changeover portion and often adopt the mode that supports strengthened with being connected at the tower cylinder, to improve tower cylinder and the basic bending-twisting ability that is connected changeover portion.
Strengthen supporting normal column bearing diagonal mode or the bracket supporting way of adopting, blower fan load is delivered to changeover portion, passes to support by changeover portion, then comes together in basic platform.Be connected connection and discontinuous with changeover portion owing to supporting, therefore be delivered to the load of each support and inhomogeneous, thereby be easy to supporting the larger stress concentration phenomenon of upper end tie point appearance.
[summary of the invention]
The object of the invention is to overcome the deficiency of traditional bearing diagonal, provide a kind of tower barrel of wind generating set to be connected changeover portion modified model linkage structure with the basis.This modified model linkage structure is by increasing stiffening ring at changeover portion and support and connection place, stiffening ring directly is connected with changeover portion with support, strengthened the coupling stiffness that supports upper end and changeover portion, thereby make blower fan load pass to more uniformly each support, reduce to support the upper end and concentrated with the stress of changeover portion joint, improved tower cylinder and the basic bending-twisting ability that is connected changeover portion.
The present invention has adopted following technical proposals:
Tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis, comprise blower foundation, blower foundation is provided with basic platform, basic platform is provided with the changeover portion that is connected with the tower cylinder, changeover portion is provided with stiffening ring, stiffening ring is inboard to be connected with the outer wall of changeover portion, and the stiffening ring downside is connected with basic platform by a plurality of supports.
Further improve: stiffening ring is loop configuration, and stiffening ring is positioned at above position, changeover portion middle part, and stiffening ring has increased the junction surface that supports upper end and changeover portion, has effectively avoided stress to concentrate.
Stiffening ring is connected one of preferred implementation with changeover portion: stiffening ring is connected with changeover portion is vertical.
Stiffening ring is connected two of preferred implementation with changeover portion: stiffening ring is downtilt angles with the changeover portion excircle and is connected.
Further improve: the acute angle angular range that forms between stiffening ring and changeover portion is spent less than 90 greater than 0 degree, preferred 15 degree, 30 degree.
Further improve: support the lower end and be connected with basic platform, supporting the upper end is connected with the stiffening ring downside, support the outside, upper end and the close stiffening ring outer circumferential position of the tie point of stiffening ring, can guarantee like this to support the upper end firmly is connected with the stiffening ring downside, avoid supporting the upper end and wedge angle occurs, thereby avoid tie point larger stress concentration phenomenon to occur.
Further improve: stiffening ring is the variable cross-section stiffening ring, and the tranverse sectional thickness of stiffening ring and support and connection place is conducive to strengthen greater than all the other position tranverse sectional thickness of stiffening ring the coupling stiffness that supports the upper end like this.
Further improve: the stiffening ring cross section is flat rectangular, parallelogram, trapezoidal or irregular figure.
Further improve: support can be column bearing diagonal or bracket support.
The present invention with respect to the beneficial effect of prior art is:
1, blower fan load is delivered to changeover portion by the tower cylinder, pass to each support through stiffening ring, then come together in basic platform, stiffening ring has improved the support top end rigidity that is connected with changeover portion, support thereby make load pass to more uniformly each, reduced the stress concentration phenomenon and improved the bending-twisting ability that supports.
2, stiffening ring and support, when production and processing, technique is simple, and precision easily guarantees, and lightweight, and cost is low, is conducive to of the present inventionly extensively promote the use of.
[description of drawings]
Fig. 1 is wind-powered electricity generation unit overall structure schematic diagram.
Fig. 2 a is blower foundation and connects changeover portion embodiment one perspective view.
Fig. 2 b is blower foundation and connects changeover portion embodiment two perspective view.
Fig. 3 is for connecting the changeover portion sectional drawing.
Fig. 4 a is that stiffening ring is connected the main schematic diagram that cuts open of embodiment one with changeover portion.
Fig. 4 b is that stiffening ring is connected the main schematic diagram that cuts open of embodiment two with changeover portion.
Fig. 5 a is embodiment's one sectional shape schematic diagram of stiffening ring.
Fig. 5 b is embodiment's two sectional shape schematic diagram of stiffening ring.
Fig. 5 c is embodiment's three sectional shape schematic diagram of stiffening ring.
Fig. 5 d is embodiment's four sectional shape schematic diagram of stiffening ring.
Fig. 6 a is the stiffening ring schematic diagram of constant cross-section.
Fig. 6 b is the stiffening ring schematic diagram of variable cross-section.
[embodiment]
As shown in Fig. 1 to Fig. 6 b, tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis, comprise blower foundation 2, blower foundation 2 is provided with basic platform, basic platform is provided with the changeover portion 3 that is connected with the tower cylinder, and changeover portion 3 is provided with stiffening ring 5, and stiffening ring 5 is inboard to be connected with the outer wall of changeover portion 3, stiffening ring 5 lower circumference are connected with basic platform 2 by a plurality of supports, support the outside, upper end and close stiffening ring 5 outer circumferential positions of the tie point of stiffening ring 5.Support can be column bearing diagonal 6(and sees Fig. 2 b) or bracket support 4(and see Fig. 2 a).
As shown in Figure 3, stiffening ring 5 is positioned at changeover portion 3 above positions, middle part, and below stiffening ring 5, also by other support and connection, this support can be the column bearing diagonal or bracket supports between changeover portion excircle and basic platform 2.
As shown in Fig. 4 a, stiffening ring 5 is connected one of preferred implementation with changeover portion 3: stiffening ring 5 is connected with changeover portion 3 is vertical.
As shown in Fig. 4 b, stiffening ring is connected two of preferred implementation with changeover portion: stiffening ring 5 is downtilt angles with changeover portion 3 excircles and is connected.The acute angle angle preferred 15 that forms between stiffening ring 5 and changeover portion 3 or 30 degree.
As shown in Fig. 6 a to Fig. 6 b, stiffening ring 5 is loop configuration.
As shown in Fig. 6 a, stiffening ring 5 is permanent cross section stiffening ring.
As shown in Fig. 6 b, stiffening ring 5 is the variable cross-section stiffening ring, stiffening ring 5 with the tranverse sectional thickness that supports 4 joints 51 greater than stiffening ring 5 all the other position tranverse sectional thickness.In concrete the application, preferred variable cross-section stiffening ring, be conducive to stiffening ring Weight-optimised.
As shown in Fig. 5 a to Fig. 5 d, stiffening ring 5 cross sections are flat rectangular, parallelogram, trapezoidal or irregular figure.
Above-described embodiment is preferred embodiment of the present invention; but embodiments of the present invention are not subjected to the restriction of above-described embodiment; other any do not deviate from change, the decoration done under Spirit Essence of the present invention and principle, substitutes, combination or simplify the substitute mode that all should be equivalence, is included in protection scope of the present invention.
Claims (10)
1. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis, comprise blower foundation, blower foundation is provided with basic platform, it is characterized in that: basic platform is provided with the changeover portion that is connected with the tower cylinder, changeover portion is provided with stiffening ring, stiffening ring is inboard to be connected with the outer wall of changeover portion, and the stiffening ring downside is connected with basic platform by a plurality of supports.
2. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 1, and it is characterized in that: described stiffening ring is loop configuration, and stiffening ring is positioned at above position, changeover portion middle part.
3. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 1, and it is characterized in that: described stiffening ring is connected with changeover portion is vertical.
4. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 1, and it is characterized in that: described stiffening ring is downtilt angles with the changeover portion excircle and is connected.
5. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 4, it is characterized in that: the acute angle angular range that forms between described stiffening ring and changeover portion is spent less than 90 greater than 0 degree.
6. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 1, it is characterized in that: described stiffening ring is the variable cross-section stiffening ring, and the tranverse sectional thickness of stiffening ring and support and connection place is greater than all the other position tranverse sectional thickness of stiffening ring.
7. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 6, it is characterized in that: described support lower end is connected with basic platform, support the upper end and be connected with the stiffening ring downside, support the tie point of upper end and stiffening ring near the stiffening ring outer circumferential position.
8. according to claim 1 or 6 described tower barrel of wind generating sets are connected changeover portion modified model linkage structure with the basis, and it is characterized in that: described stiffening ring cross section is flat rectangular, parallelogram, trapezoidal or irregular figure.
9. tower barrel of wind generating set is connected changeover portion modified model linkage structure with the basis according to claim 1, it is characterized in that: described support can be the column bearing diagonal or bracket supports.
According to claim 1 tower barrel of wind generating set with the basis be connected changeover portion modified model linkage structure, it is characterized in that: below described stiffening ring, between changeover portion excircle and basic platform also by other support and connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100591859A CN103147932A (en) | 2013-02-25 | 2013-02-25 | Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100591859A CN103147932A (en) | 2013-02-25 | 2013-02-25 | Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section |
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| CN103147932A true CN103147932A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100591859A Pending CN103147932A (en) | 2013-02-25 | 2013-02-25 | Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669312A (en) * | 2013-12-19 | 2014-03-26 | 广东明阳风电产业集团有限公司 | Jacket platform of offshore wind turbine |
| CN104044706A (en) * | 2014-05-06 | 2014-09-17 | 中国海洋石油总公司 | Grouting and Welding Combined Connection Joint Applied to a Deepwater Floating Type Platform and an Offshore Installation Method Thereof |
| CN104564545A (en) * | 2015-01-07 | 2015-04-29 | 广东明阳风电产业集团有限公司 | Offshore wind power jacket base transition section structure |
| CN105569068A (en) * | 2016-02-23 | 2016-05-11 | 浙江华蕴海洋工程技术服务有限公司 | Offshore wind power jacket foundation transition section and offshore wind power jacket foundation |
| CN111980866A (en) * | 2019-05-22 | 2020-11-24 | 北京金风科创风电设备有限公司 | Stay cable type tower, wind generating set and stay cable anchoring part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2901890A (en) * | 1957-04-26 | 1959-09-01 | Frank E Hutchison | Submarine structure |
| WO2006004417A1 (en) * | 2004-07-01 | 2006-01-12 | Owec Tower As | A device for a bending moment deficient strut connection |
| US20110146192A1 (en) * | 2008-06-24 | 2011-06-23 | Gunnar Foss | Stayed connection for wind turbine |
| CN203201728U (en) * | 2013-02-25 | 2013-09-18 | 广东明阳风电产业集团有限公司 | Improved type connecting structure of wind generating set tower cylinder and base connecting transition section |
-
2013
- 2013-02-25 CN CN2013100591859A patent/CN103147932A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2901890A (en) * | 1957-04-26 | 1959-09-01 | Frank E Hutchison | Submarine structure |
| WO2006004417A1 (en) * | 2004-07-01 | 2006-01-12 | Owec Tower As | A device for a bending moment deficient strut connection |
| US20110146192A1 (en) * | 2008-06-24 | 2011-06-23 | Gunnar Foss | Stayed connection for wind turbine |
| CN203201728U (en) * | 2013-02-25 | 2013-09-18 | 广东明阳风电产业集团有限公司 | Improved type connecting structure of wind generating set tower cylinder and base connecting transition section |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669312A (en) * | 2013-12-19 | 2014-03-26 | 广东明阳风电产业集团有限公司 | Jacket platform of offshore wind turbine |
| CN104044706A (en) * | 2014-05-06 | 2014-09-17 | 中国海洋石油总公司 | Grouting and Welding Combined Connection Joint Applied to a Deepwater Floating Type Platform and an Offshore Installation Method Thereof |
| CN104564545A (en) * | 2015-01-07 | 2015-04-29 | 广东明阳风电产业集团有限公司 | Offshore wind power jacket base transition section structure |
| CN105569068A (en) * | 2016-02-23 | 2016-05-11 | 浙江华蕴海洋工程技术服务有限公司 | Offshore wind power jacket foundation transition section and offshore wind power jacket foundation |
| CN111980866A (en) * | 2019-05-22 | 2020-11-24 | 北京金风科创风电设备有限公司 | Stay cable type tower, wind generating set and stay cable anchoring part |
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Application publication date: 20130612 |