CN103899495A - Mixed tower of wind turbine generator set - Google Patents
Mixed tower of wind turbine generator set Download PDFInfo
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- CN103899495A CN103899495A CN201210581308.0A CN201210581308A CN103899495A CN 103899495 A CN103899495 A CN 103899495A CN 201210581308 A CN201210581308 A CN 201210581308A CN 103899495 A CN103899495 A CN 103899495A
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- pylon
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A mixed tower of a wind turbine generator set comprises an upper steelwork tower section, a lower reinforced concrete tower section and a foundation. The upper steelwork tower section and the lower reinforced concrete tower section are connected through flange fasteners. The lower reinforced concrete tower section and the foundation are in split structure and connected through flange fasteners, or the lower reinforced concrete tower section and the foundation are integrally made. The mixed tower of the wind turbine generator set solves the problem of complexity in processing of a conventional steelwork conical tower and is simple to manufacture and low in requirements for equipment and operators. The mixed tower has more remarkable advantages in corrosion resistance as compared with the conventional steelwork conical tower. First-order inherent frequency f of the mixed tower of the wind turbine generator set is larger than blade passing frequency 3P, resonance between the tower and the blade can be avoided during running, and connecting surfaces of the mixed tower are more than 2 fewer than those of the conventional steelwork conical tower, and failure risk in flange fastening connection is greatly reduced.
Description
Technical field
The present invention relates to wind generating technology and equipment technical field, especially relate to a kind of wind power generating set and mix pylon.
Background technique
In recent years, New Energy Industry wind-power electricity generation is subject to the extensive attention of national governments, thereby development is swift and violent.In wind power generating set, pylon plays and connects main frame and ground, and supports the effect of main frame, thereby the quality of pylon directly affects overall performance.
At present, wind-power generating unit tower mainly adopts steel cone barrel structure form, and it is through steel plate cutting, and------shell ring rolls, and---------shell ring group is to, circumferential weld welding, flaw detection, and---shell ring and flange group are welded, checked, circumferential weld---sandblast of semi-finished product pylon---pylon spray paint application---, and a series of manufacturing processs such as finished product pylon inspection just complete in shell ring finishing for the welding of shell ring longitudinal seam, flaw detection in groove processing.This type of pylon is manufactured and the restriction of the condition such as road transport, conventionally pylon is divided into several sections and makes (long 20～30 meters of every section of pylon, weight is 30～60 tons), the scene of being transported to afterwards is vertically docked to every section of pylon together, and every section of pylon connects by flange fastener.Unavoidably there is following point in this type of pylon:
One, this type of pylon manufacturing process complexity, to site requirements high (professional manufacturing shop), need special device frock, and operating personnel is required to high (job that requires special skills personnel).
Two, this type of pylon adopts steel material, and easily rust corrosion, must carry out coating antiseptic.Under the environment such as windy and dusty, anti-salt fog (coastal, coastal waters, sea), requirement for anticorrosion is higher harsher, and later maintenance cost is also high especially.
Three, this type of pylon belongs to soft tower more, and soft tower refers to 1P < f < 3P (pylon first natural frequency f, wheel rotation frequency 1P, blade passing frequency 3P).Sometimes inevitable impeller is under a certain rotating speed, and blade passing frequency 3P is consistent with pylon first natural frequency f, thereby resonates, and only can avoid this point by control strategy.
Four, this type of pylon is divided into several sections conventionally, at the scene pylon is connected and is fastened to together by flange, much more like this flange be fastenedly connected with regard to many risks of Joint failure (in recent years, several the events of falling tower having occurred is exactly because be fastenedly connected the reason of inefficacy).
Five, along with the large scale development trend of wind power generating set and the application of Oversea wind power generation, height and the sectional dimension of pylon increase thereupon, make the transport of this type of pylon also difficult all the more.
Summary of the invention
The object of the invention is to design a kind of novel wind power generating set and mix pylon, address the above problem.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of wind power generating set is mixed pylon, comprises top steel tower joint, lower rebar concrete towers joint and ground, between described top steel tower joint and described lower rebar concrete towers joint, connects by flange fastener; Between described lower rebar concrete towers joint and described ground, be split-type structural, and connect by flange fastener, or described lower rebar concrete towers joint is integrated into described ground.
In the time being split-type structural between described lower rebar concrete towers joint and described ground, be only embedded with ground basic ring or ground anchor in the upper end of described lower rebar concrete towers joint; Between described top steel tower joint and described lower rebar concrete towers joint, be fixedly connected with by described ground basic ring or described ground anchor;
When between described lower rebar concrete towers joint and described ground when integrated making, the top and bottom of described lower rebar concrete towers joint be all embedded with basic ring or ground anchor; Described top steel tower saves between described lower rebar concrete towers joint, described lower rebar concrete towers saves between described ground and is all fixedly connected with by described ground basic ring or described ground anchor.
Described ground basic ring comprise ground basic ring upper flange, barrel, basic ring lower flange and ground basic ring horizontal adjusting device, described ground basic ring lower flange and described ground basic ring horizontal adjusting device are embedded in described lower rebar concrete towers joint, and described ground basic ring upper flange is fixedly connected with described top steel tower joint or described ground by fastening piece.
Described ground anchor comprises ground anchor upper flange, crab-bolt, ground anchor lower flange and ground anchor horizontal adjusting device, described ground anchor lower flange and described ground anchor horizontal adjusting device are embedded in described lower rebar concrete towers joint, and described ground anchor upper flange is fixedly connected with described top steel tower joint or described ground by fastening piece.
Described top steel tower joint is cone barrel structure.
Steel tower joint in described top is formed by least one shell ring and each flange welding at least up and down.
In the time being split-type structural between described lower rebar concrete towers joint and described ground, described lower rebar concrete towers joint is straight tube structure, and two ends are with steel flanges.
It is that the wind power generating set that is applied to double-fed wind power generator group is mixed pylon that described wind power generating set is mixed pylon.
It is that the wind power generating set that is applied to high-speed permanent magnetic wind power generating set is mixed pylon that described wind power generating set is mixed pylon.
It is that the wind power generating set that is applied to direct wind-driven generator group is mixed pylon that described wind power generating set is mixed pylon.
The invention discloses a kind of wind power generating set and mix pylon, comprise top steel tower joint and lower rebar concrete towers joint two-part.The upper and lower two-part of pylon connect by flange fastener; Lower rebar concrete towers joint can be made one with ground, also can make separately reinforced concrete tower joint, is connected afterwards with ground by flange fastener.Described top steel tower joint is cone barrel structure, and it is to be formed by several shell rings and 2 flange weldings.Described makes separately lower rebar concrete towers joint for straight tube structure, and two ends are with steel flanges.It can be made at the scene, and place that also can be is near the scene prefabricated forming in batches.Described makes integrative-structure by lower rebar concrete towers joint and ground, can be understood as ground is raised.For example former ground height is 0, now ground is lifted to 50 meters, even higher.Described lower rebar concrete towers joint and ground are made to integrative-structure, wherein can pre-buried ground ring structure in integrative-structure, also can pre-buried ground anchor structure, come to save and be connected with the steel tower on top with this.The invention solves in prior art pylon at manufacturing, transport, Joint failure, anticorrosion and resonance problem.
Beneficial effect of the present invention can be summarized as follows:
1, the invention solves conventional steel and bore a problem for pylon processing technology complexity, its makes simple, less demanding to equipment and operating personnel.
2, the present invention is more with the obvious advantage at antiseptic property than conventional steel cone cylinder pylon.Reason is that reinforced concrete construction is better than the antiseptic property of steel design, and later maintenance cost is also very low, needs hardly what maintenance.
3, the first natural frequency f that wind power generating set of the present invention is mixed pylon is greater than blade passing frequency 3P, and when operation, pylon can not resonate with blade.
4, the present invention is fewer more than 2 than the junction surface of conventional steel cone cylinder pylon, greatly reduces flange and be fastenedly connected the risk of inefficacy.
5, the present invention is more outstanding in advantage aspect transport than conventional steel cone cylinder pylon, and mixing pylon only has steel tower joint to make in manufactory, and need to be transported to scene, but this steel tower joint length is short, and sectional dimension is little, lightweight, and cost of transportation is relatively low.
Brief description of the drawings
Fig. 1 is a kind of wind power generating set mixing column shelf structure schematic diagram of the present invention.
Fig. 2 is ground ring structure schematic diagram of the present invention.
Fig. 3 is ground anchor structure schematic diagram of the present invention.
In figure, 1-lower rebar concrete towers joint, 2-ground basic ring (or ground anchor), 3-top steel tower joint, 4-flange fastener, 5-ground basic ring upper flange, 6-barrel, 7-ground basic ring lower flange, 8-ground basic ring horizontal adjusting device, 9-ground anchor upper flange, 10-crab-bolt, 11-ground anchor lower flange, 12-ground anchor horizontal adjusting device.
Embodiment
In order to make technical problem solved by the invention, technological scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of wind power generating set is as shown in Figure 1 to Figure 3 mixed pylon, comprises top steel tower joint 3, lower rebar concrete towers joint 1 and ground, between described top steel tower joint 3 and described lower rebar concrete towers joint 1, connects by flange fastener 4; Between described lower rebar concrete towers joint 1 and described ground, be split-type structural, and connect by flange fastener 4, or described lower rebar concrete towers joint 1 is integrated into described ground.In the time being split-type structural between described lower rebar concrete towers joint 1 and described ground, be only embedded with ground basic ring 2 or ground anchor 2 in the upper end of described lower rebar concrete towers joint 1; Between described top steel tower joint 3 and described lower rebar concrete towers joint 1, be fixedly connected with by described ground basic ring 2 or described ground anchor 2; When between described lower rebar concrete towers joint 1 and described ground when integrated making, the top and bottom of described lower rebar concrete towers joint 1 be all embedded with basic ring 2 or ground anchor 2; Between described top steel tower joint 3 and described lower rebar concrete towers joint 1, be all fixedly connected with by described ground basic ring 2 or described ground anchor 2 between described lower rebar concrete towers joint 1 and described ground.
In the embodiment who is more preferably, described ground basic ring 2 comprise ground basic ring upper flange 5, barrel 6, basic ring lower flange 7 and ground basic ring horizontal adjusting device 8, described ground basic ring lower flange 7 and described ground basic ring horizontal adjusting device 8 are embedded in described lower rebar concrete towers joint 1, and described ground basic ring upper flange 5 is fixedly connected with described top steel tower joint 3 or described ground by flange fastener 4.Described ground anchor 2 comprises ground anchor upper flange 9, crab-bolt 10, ground anchor lower flange 11 and ground anchor horizontal adjusting device 12, described ground anchor lower flange 11 and described ground anchor horizontal adjusting device 12 are embedded in described lower rebar concrete towers joint 1, and described ground anchor upper flange 9 is fixedly connected with described top steel tower joint 3 or described ground by flange fastener 4.Described top steel tower joint 3 is cone barrel structure.Steel tower joint 3 in described top is formed by least one shell ring and each flange welding at least up and down.In the time being split-type structural between described lower rebar concrete towers joint 1 and described ground, described lower rebar concrete towers joint 1 is straight tube structure, and two ends are with steel flanges.
It is that the wind power generating set that is applied to double-fed wind power generator group is mixed pylon that described wind power generating set is mixed pylon, or be applied to the wind power generating set mixing pylon of high-speed permanent magnetic wind power generating set, or be applied to the wind power generating set mixing pylon of direct wind-driven generator group.
In other embodiment, described top steel tower joint 3 can be also straight tube structure.Described lower rebar concrete towers joint 1 can be made at the scene, place prefabricated forming in batches that also can be near the scene.Its upper end and top steel tower save 3 flanges and are fastenedly connected, and lower end and ground flange are fastenedly connected.
Ground basic ring 2 as shown in Figure 2, it is embedded in described lower rebar concrete towers joint 1.Before concreting, need by ground basic ring horizontal adjusting device 8 its leveling.
More than by the detailed description of concrete and preferred embodiment the present invention; but those skilled in the art should be understood that; the present invention is not limited to the above embodiment; within the spirit and principles in the present invention all; any amendment of doing, be equal to replacement etc., within protection scope of the present invention all should be included in.
Claims (10)
1. wind power generating set is mixed a pylon, it is characterized in that, comprises top steel tower joint, lower rebar concrete towers joint and ground, between described top steel tower joint and described lower rebar concrete towers joint, connects by flange fastener; Between described lower rebar concrete towers joint and described ground, be split-type structural, and connect by flange fastener, or described lower rebar concrete towers joint is integrated into described ground.
2. wind power generating set according to claim 1 is mixed pylon, it is characterized in that: in the time being split-type structural between described lower rebar concrete towers joint and described ground, be only embedded with ground basic ring or ground anchor in the upper end of described lower rebar concrete towers joint; Between described top steel tower joint and described lower rebar concrete towers joint, be fixedly connected with by described ground basic ring or described ground anchor;
When between described lower rebar concrete towers joint and described ground when integrated making, the top and bottom of described lower rebar concrete towers joint be all embedded with basic ring or ground anchor; Described top steel tower saves between described lower rebar concrete towers joint, described lower rebar concrete towers saves between described ground and is all fixedly connected with by described ground basic ring or described ground anchor.
3. the wind power generating set of stating according to claim 2 is mixed pylon, it is characterized in that: described ground basic ring comprise ground basic ring upper flange, barrel, basic ring lower flange and ground basic ring horizontal adjusting device, described ground basic ring lower flange and described ground basic ring horizontal adjusting device are embedded in described lower rebar concrete towers joint, and described ground basic ring upper flange is fixedly connected with described top steel tower joint or described ground by fastening piece.
4. the wind power generating set of stating according to claim 2 is mixed pylon, it is characterized in that: described ground anchor comprises ground anchor upper flange, crab-bolt, ground anchor lower flange and ground anchor horizontal adjusting device, described ground anchor lower flange and described ground anchor horizontal adjusting device are embedded in described lower rebar concrete towers joint, and described ground anchor upper flange is fixedly connected with described top steel tower joint or described ground by fastening piece.
5. wind power generating set according to claim 1 is mixed pylon, it is characterized in that: steel tower joint in described top is cone barrel structure.
6. the wind power generating set stated according to claim 5 is mixed pylon, it is characterized in that: steel tower joint in described top is formed by least one shell ring and each flange welding at least up and down.
7. wind power generating set according to claim 1 is mixed pylon, it is characterized in that: in the time being split-type structural between described lower rebar concrete towers joint and described ground, described lower rebar concrete towers joint is straight tube structure, and two ends are with steel flanges.
8. wind power generating set according to claim 1 is mixed pylon, it is characterized in that: it is that the wind power generating set that is applied to double-fed wind power generator group is mixed pylon that described wind power generating set is mixed pylon.
9. wind power generating set according to claim 1 is mixed pylon, it is characterized in that: it is that the wind power generating set that is applied to high-speed permanent magnetic wind power generating set is mixed pylon that described wind power generating set is mixed pylon.
10. wind power generating set according to claim 1 is mixed pylon, it is characterized in that: it is that the wind power generating set that is applied to direct wind-driven generator group is mixed pylon that described wind power generating set is mixed pylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581308.0A CN103899495A (en) | 2012-12-27 | 2012-12-27 | Mixed tower of wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581308.0A CN103899495A (en) | 2012-12-27 | 2012-12-27 | Mixed tower of wind turbine generator set |
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| CN103899495A true CN103899495A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210581308.0A Pending CN103899495A (en) | 2012-12-27 | 2012-12-27 | Mixed tower of wind turbine generator set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100079A (en) * | 2017-05-25 | 2017-08-29 | 上海市政工程设计研究总院（集团）有限公司 | A kind of construction method of the anchor structure of precast assembly overpass steel column |
| US10815969B2 (en) | 2016-11-10 | 2020-10-27 | General Electric Company | Methods and apparatus for refurbishing wind turbine foundations |
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- 2012-12-27 CN CN201210581308.0A patent/CN103899495A/en active Pending
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| US20100146890A1 (en) * | 2008-12-16 | 2010-06-17 | Vestas Wind Systems A/S | Foundation for enabling anchoring of a wind turbine tower thereto by means of replaceable through-bolts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10815969B2 (en) | 2016-11-10 | 2020-10-27 | General Electric Company | Methods and apparatus for refurbishing wind turbine foundations |
| CN107100079A (en) * | 2017-05-25 | 2017-08-29 | 上海市政工程设计研究总院（集团）有限公司 | A kind of construction method of the anchor structure of precast assembly overpass steel column |
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Application publication date: 20140702 |