CN204877806U - Wind generating set tower section of thick bamboo structure - Google Patents
Wind generating set tower section of thick bamboo structure Download PDFInfo
- Publication number
- CN204877806U CN204877806U CN201520564128.0U CN201520564128U CN204877806U CN 204877806 U CN204877806 U CN 204877806U CN 201520564128 U CN201520564128 U CN 201520564128U CN 204877806 U CN204877806 U CN 204877806U
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- China
- Prior art keywords
- barrel
- cylinder body
- thick bamboo
- generating set
- tower
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Wind Motors (AREA)
Abstract
The utility model relates to a wind generating set tower section of thick bamboo structure, including tower section of thick bamboo body, be equipped with damping device on the tower section of thick bamboo body, this damping device includes the barrel, the barrel cover is established the inboard on tower section of thick bamboo body upper portion, the barrel with form sealed intermediate layer space between the tower section of thick bamboo body, fluid medium packs in the intermediate layer space. The utility model discloses owing to be equipped with damping device on tower section of thick bamboo body, can show the damping that increases tower section of thick bamboo body, make the vibration of tower section of thick bamboo body reduce to the fatigue life and the simple structure that effectively prolong wind generating set tower section of thick bamboo structure implement easily.
Description
Technical field
The utility model relates to a kind of tower barrel of wind generating set structure, belongs to wind power generating set field.
Background technique
At present, domestic tower barrel of wind generating set is conical steel structure pattern, is the main load-bearing component of wind power generating set, mainly bears nacelle weight, load that wind wheel passes over and act directly on the wind load of tower body.
Under the excitation of external force, can there is the rocking vibration of left and right and front and back in tower cylinder, the frequency of vibration is exactly the single order of tower cylinder, second order, three rank ... etc. natural frequency.If natural frequency and the excited frequency of tower cylinder are close, unit just has the possibility producing resonance, and during generating set resonant vibration, the Oscillation Amplitude of tower cylinder can more come larger, when reaching certain amplitude, will damage the miscellaneous part of tower cylinder and unit.In addition, the vibration of tower cylinder can produce dynamic load, and this will greatly affect the fatigue life of cylindrical shell itself.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of tower barrel of wind generating set structure, the natural frequency and the excited frequency that overcome tower barrel of wind generating set in prior art are close, unit easily produces resonance and causes the fatigue of body tower cylinder, reduction of service life and can cause the defect of the damage of other parts.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of tower barrel of wind generating set structure, comprises tower cylinder body, and described tower cylinder body is provided with damping device.
The beneficial effects of the utility model are: owing to being provided with damping device on tower cylinder body, the damping of tower cylinder body can be enlarged markedly, tower cylinder body is vibrated reduce, thus effectively extend fatigue life of tower barrel of wind generating set structure and structure is simply easily implemented.
On the basis of technique scheme, the utility model can also do following improvement.
The utility model a kind of tower barrel of wind generating set structure described above, further, described damping device comprises cylindrical shell, described barrel jacket is located at the inner side of described tower cylinder body upper part, the mezzanine space of sealing is formed, fill fluid medium in described mezzanine space between described cylindrical shell and described tower cylinder body.
The utility model a kind of tower barrel of wind generating set structure described above, further, described damping device comprises cylindrical shell, described barrel jacket is located at the outside of described tower cylinder body upper part, the mezzanine space of sealing is formed, fill fluid medium in described mezzanine space between described cylindrical shell and described tower cylinder body.
The utility model a kind of tower barrel of wind generating set structure described above, further, described damping device comprises mutually sheathed inner barrel and outer cylinder body, fill fluid medium in the mezzanine space between described inner barrel and outer cylinder body, and its two ends are fixedly connected by welding; Described inner barrel is detachably set in the top of described tower cylinder body.
The utility model a kind of tower barrel of wind generating set structure described above, further, described flowing medium is sand.
The utility model a kind of tower barrel of wind generating set structure described above, further, described flowing medium obturator accumulated amount is less than the volume of mezzanine space.
The utility model a kind of tower barrel of wind generating set structure described above, further, the 10-50% of the volume of the described flowing medium packing volume amount of being less than mezzanine space.
Adopt the beneficial effect of above-mentioned further scheme to be: for ensure flowing medium can in mezzanine space smooth outflow, realize the amplitude reducing unit efficiently.
Accompanying drawing explanation
Fig. 1 is a kind of wind generating set structure schematic diagram of the utility model;
Fig. 2 is a kind of tower barrel of wind generating set structure of the utility model enlarged diagram.
In accompanying drawing, the list of parts representated by each label is as follows:
1, ground, 2, tower cylinder body, 3, mezzanine space, 4, cabin, 5, blade, 6, flowing medium, 7, cylindrical shell.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of tower barrel of wind generating set structure of the utility model, described wind-driven generator comprises the tower cylinder body 2 be fixed on ground 1, is fixed on the cabin 4 on tower cylinder body 2, described cabin 4 is fixedly connected with blade 5, and tower cylinder body 2 is provided with damping device.
Particularly, as shown in Figure 2, described damping device in a kind of tower barrel of wind generating set of the utility model structure comprises cylindrical shell 7, described cylindrical shell 7 is set in the inner side on described tower cylinder body 2 top, the mezzanine space 3 of sealing is formed, fill fluid medium 6 in described mezzanine space 3 between described cylindrical shell 7 and described tower cylinder body 2.This mezzanine space 3 can be formed by welding formation cylindrical shell 7 by the inside of cylindrical tower cylinder, and the size of this mezzanine space 3 is determined by the damping amount that will increase.Damping amount as predetermined increase is comparatively large, then this mezzanine space 3 size can be done greatly, and the damping amount as predetermined increase is less, then this interlayer size can be done little.In specific implementation process, consider actual effect, generally when designing this mezzanine space, it should be arranged in the top of tower cylinder as far as possible and for ensureing that medium can flow in interlayer, generally interlayer can not be filled.Guaranteeing under the prerequisite flowed, the medium effectiveness in vibration suppression that proportion is larger is better.After flowing medium is inserted mezzanine space, the welding of mezzanine space two ends is shut.When unit is to a direction vibration time, the flowing medium in interlayer to flowing in the other direction, thus will increase the damping of tower cylinder, and the amplitude of unit is reduced.
The utility model a kind of tower barrel of wind generating set structure described above, described flowing medium is sand in certain embodiments; Described flowing medium obturator accumulated amount is less than the volume of mezzanine space.
The utility model a kind of tower barrel of wind generating set structure described above, further, the 10-50% of the volume of the described flowing medium packing volume amount of being less than mezzanine space.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a tower barrel of wind generating set structure, comprises tower cylinder body, it is characterized in that, described tower cylinder body is provided with damping device; Described damping device comprises cylindrical shell, and described barrel jacket is located at the inner side of described tower cylinder body upper part, forms the mezzanine space of sealing, fill fluid medium in described mezzanine space between described cylindrical shell and described tower cylinder body;
Or described damping device comprises cylindrical shell, described barrel jacket is located at the outside of described tower cylinder body upper part, forms the mezzanine space of sealing, fill fluid medium in described mezzanine space between described cylindrical shell and described tower cylinder body;
Or described damping device comprises mutually sheathed inner barrel and outer cylinder body, fill fluid medium in the mezzanine space between described inner barrel and outer cylinder body, its two ends are fixedly connected by welding; Described inner barrel is detachably set in the top of described tower cylinder body.
2. a kind of tower barrel of wind generating set structure according to claim 1, it is characterized in that, described flowing medium is sand.
3. a kind of tower barrel of wind generating set structure according to any one of claim 1, is characterized in that, described flowing medium obturator accumulated amount is less than the volume of mezzanine space.
4. a kind of tower barrel of wind generating set structure according to claim 1, is characterized in that, the 10-50% of the volume of the described flowing medium packing volume amount of being less than mezzanine space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520564128.0U CN204877806U (en) | 2015-07-29 | 2015-07-29 | Wind generating set tower section of thick bamboo structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520564128.0U CN204877806U (en) | 2015-07-29 | 2015-07-29 | Wind generating set tower section of thick bamboo structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877806U true CN204877806U (en) | 2015-12-16 |
Family
ID=54822187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520564128.0U Expired - Fee Related CN204877806U (en) | 2015-07-29 | 2015-07-29 | Wind generating set tower section of thick bamboo structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877806U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561487A (en) * | 2018-05-31 | 2018-09-21 | 北京金风科创风电设备有限公司 | Damper for tower of wind generating set and tower of wind generating set |
| CN110582638A (en) * | 2017-04-06 | 2019-12-17 | 维斯塔斯风力***有限公司 | Method for retrofitting a wind turbine with an energy generating unit |
| CN110630076A (en) * | 2018-06-28 | 2019-12-31 | 北京金风科创风电设备有限公司 | Damper and bearing enclosure structure with same |
-
2015
- 2015-07-29 CN CN201520564128.0U patent/CN204877806U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110582638A (en) * | 2017-04-06 | 2019-12-17 | 维斯塔斯风力***有限公司 | Method for retrofitting a wind turbine with an energy generating unit |
| US11480158B2 (en) | 2017-04-06 | 2022-10-25 | Vestas Wind Systems A/S | Method of retrofitting a wind turbine with an energy generating unit |
| CN108561487A (en) * | 2018-05-31 | 2018-09-21 | 北京金风科创风电设备有限公司 | Damper for tower of wind generating set and tower of wind generating set |
| CN110630076A (en) * | 2018-06-28 | 2019-12-31 | 北京金风科创风电设备有限公司 | Damper and bearing enclosure structure with same |
| AU2018430473B2 (en) * | 2018-06-28 | 2021-10-28 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Damper and load-bearing enclosing structure provided with damper |
| US11549277B2 (en) | 2018-06-28 | 2023-01-10 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Damper and load-bearing enclosing structure provided with damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20170729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |