CN111022268B - Penetrating type liftable wind power tower and working method thereof - Google Patents
Penetrating type liftable wind power tower and working method thereof Download PDFInfo
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- CN111022268B CN111022268B CN201911387482.XA CN201911387482A CN111022268B CN 111022268 B CN111022268 B CN 111022268B CN 201911387482 A CN201911387482 A CN 201911387482A CN 111022268 B CN111022268 B CN 111022268B
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- steel cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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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
-
- 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
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a through type liftable wind power tower and a working method thereof, wherein the through type liftable wind power tower comprises a top steel cylinder, a lifting mechanism, a middle supporting section and a bottom steel cylinder which are sequentially arranged from top to bottom, a cabin and an impeller are arranged on the top steel cylinder, a central steel cylinder is arranged between the top steel cylinder and the bottom steel cylinder in a penetrating way, and a cable and a bracket are arranged in the central steel cylinder; the middle supporting section is sleeved outside the central steel cylinder, the peripheral side wall of the middle supporting section is of a hollow structure, the lifting mechanism is arranged at the top of the middle supporting section, and the telescopic part of the lifting mechanism is fixedly connected with the bottom of the top steel cylinder; the top of the bottom steel cylinder is fixedly connected with the bottom of the middle supporting section. On one hand, the side wall of the middle supporting section is designed into a hollow structure, so that most wind can pass through conveniently and not directly impact, and the problem that the bearing capacity is insufficient due to the overlarge windward area of the traditional wind power tower barrel is solved; on the other hand, the lifting mechanism is used for driving the fan to lift, so that the problem that the traditional wind power tower is fixed in height and can only generate power by utilizing the wind speed at a certain height is solved.
Description
Technical field:
The invention relates to a transparent liftable wind power tower and a working method thereof.
The background technology is as follows:
Wind towers are important devices of wind power plants, which function to support the nacelle and the impeller of the wind power plant. At present, the tower of the wind generating set is generally a conical cylinder type steel tower, and the tower is relatively simple to manufacture and quick and convenient to install, so that the market is relatively large. In recent years, as the capacity of a wind turbine generator set increases, a tower becomes larger and larger, and the height, the wall thickness and the diameter of the tower are greatly increased compared with those of the conventional tower, so that the windward area of a tower body becomes larger due to the increase of the height and the diameter, the wind load born by the tower body also increases, and the bearing capacity of the wind turbine tower is a small challenge. The increased thickness of the tower wall can lead to increased steel consumption, and for large-scale engineering machinery with large tonnage and high manufacturing material cost, serious resource waste can be caused in the production and manufacturing process or the scrapping treatment after retirement.
The height of the wind power tower barrel which is put into use at present is fixed, so that the wind power generator set can only utilize the wind speed at a certain height to generate power, and when the wind speed at the height is smaller than the cut-in wind speed of the wind power generator set or larger than the cut-out wind speed of the wind power generator set, the wind power generator cannot work, the operation duration of the wind power generator set is seriously influenced, and the wind power plant benefit is low.
The invention comprises the following steps:
the invention aims at improving the problems in the prior art, namely the technical problem to be solved by the invention is to provide the transparent liftable wind power tower and the working method thereof, and the transparent liftable wind power tower has reasonable structural design, has good bearing capacity and can adjust the height of the tower barrel.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the permeable liftable wind power tower comprises a top steel cylinder, a lifting mechanism, a middle supporting section and a bottom steel cylinder which are sequentially arranged from top to bottom, wherein a central steel cylinder is arranged between the top steel cylinder and the bottom steel cylinder in a penetrating manner; the middle supporting section is sleeved on the outer side of the central steel cylinder, the peripheral side wall of the middle supporting section is of a hollow structure, the lifting mechanism is vertically arranged at the top of the middle supporting section, and the telescopic part of the lifting mechanism is fixedly connected with the bottom of the top steel cylinder so as to drive the top steel cylinder to lift; the top of the bottom steel cylinder is fixedly connected with the bottom of the middle supporting section.
Further, the middle support section comprises an annular steel column assembly, a first connecting disc and a second connecting disc which are fixedly connected to the upper end and the lower end of the annular steel column assembly respectively, the lifting mechanism is fixed to the top surface of the first connecting disc, and the bottom steel cylinder is fixedly connected to the bottom surface of the second connecting disc.
Further, annular steel column subassembly includes that the axis around the central steel cylinder is the interior annular steel column subassembly and the outer annular steel column subassembly that the concentric circles distributes, interior annular steel column subassembly contains a plurality of interior steel columns that are circumference equipartition around the axis of central steel cylinder, outer annular steel column subassembly contains a plurality of outer steel columns that are circumference equipartition around the axis of central steel cylinder, all has the clearance between two adjacent interior steel columns and between two adjacent outer steel columns, and a plurality of interior steel columns and a plurality of outer steel columns dislocation layout to form hollow out construction.
Further, the upper and lower ends of the inner steel column and the upper and lower ends of the outer steel column are fixedly connected with the first connecting disc and the second connecting disc respectively.
Further, the lifting mechanism comprises a plurality of telescopic hydraulic cylinders which are circumferentially distributed around the axis of the central steel cylinder, the telescopic hydraulic cylinders are vertically arranged, the lower ends of the telescopic hydraulic cylinders are fixed on the top surface of the first connecting disc, and the upper ends of the telescopic hydraulic cylinders are fixedly connected with a third connecting disc; the bottom of the top steel cylinder is fixedly connected with the top surface of the third connecting disc.
Further, through holes for facilitating the penetration of the central steel cylinder are coaxially formed in the first connecting disc, the second connecting disc and the third disc, the upper end of the central steel cylinder penetrates through the third connecting disc and stretches into the top steel cylinder, and the lower end of the central steel cylinder penetrates through the second connecting disc and stretches into the bottom steel cylinder.
Further, the top steel cylinder is connected with the third connecting disc, and the bottom steel cylinder is connected with the second connecting disc through flanges.
Further, the first connecting disc, the second connecting disc and the third connecting disc are all made of steel.
The invention adopts another technical scheme that: the working method of the transparent liftable wind power tower comprises the steps that when the working method is used, a cabin and an impeller are arranged in a top steel cylinder, and when wind conditions are lower than the cutting-in speed of a fan, a telescopic hydraulic cylinder drives the top steel cylinder to ascend so as to raise the height of the fan; when the wind condition is higher than the cutting speed of the fan, the telescopic hydraulic cylinder drives the top steel cylinder to descend so as to reduce the height of the fan.
Compared with the prior art, the invention has the following effects:
(1) The middle support section is designed into a hollowed-out structure, most wind can pass through the tower body and not directly impact the tower body, so that the windward area of the tower is greatly reduced, the problem of overlarge load brought by wind load to the tower is effectively solved, and the problem of higher overall cost caused by overlarge quality of the traditional tower barrel is solved to a certain extent;
(2) The telescopic hydraulic cylinder is introduced to drive the top steel cylinder to lift, so that the height of the fan can be adjusted, the fan can be adjusted to different wind conditions, the use flexibility is good, the wind speeds at different heights are fully utilized to generate electricity, and the electricity generation benefit of a wind power plant is effectively improved.
Description of the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic plan view of a first connecting disc, a second connecting disc, and a third connecting disc;
fig. 3 is a schematic view of a partial structure of the inner steel column and the outer steel column.
In the figure:
1-a bottom steel cylinder; 2-a central steel cylinder; 3-an outer steel column; 4-telescopic hydraulic cylinders; 5-top steel cylinder; 6-a first connecting disc; 7-high-strength bolt holes; 8-an inner steel column; 9-a second connecting disc; 10-a third connecting disc; 11-an intermediate support section; 12-lifting mechanism; 13-connection flange.
The specific embodiment is as follows:
the invention will be described in further detail with reference to the drawings and the detailed description.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1-3, the transparent liftable wind power tower comprises a top steel cylinder 5, a lifting mechanism 12, a middle supporting section 11 and a bottom steel cylinder 1 which are sequentially arranged from top to bottom, wherein a cabin and an impeller are arranged on the top steel cylinder 5, a central steel cylinder 2 is arranged between the top steel cylinder 5 and the bottom steel cylinder 1 in a penetrating manner, and a cable and a bracket are arranged in the central steel cylinder 2; the middle supporting section 11 is sleeved on the outer side of the central steel cylinder 2, the peripheral side wall of the middle supporting section 11 is of a hollow structure so as to facilitate most wind to pass through and avoid larger impact caused directly, the lifting mechanism 12 is vertically arranged at the top of the middle supporting section 11, and the telescopic part of the lifting mechanism 12 is fixedly connected with the bottom of the top steel cylinder 5 so as to drive the top steel cylinder to lift, and then the height of the fan is adjusted according to different wind conditions; the top of the bottom steel cylinder 1 is fixedly connected with the bottom of the middle supporting section 11.
In this embodiment, the middle support section 11 includes an annular steel column assembly, and a first connecting disc 6 and a second connecting disc 9 respectively fixedly connected to the upper end and the lower end of the annular steel column assembly, the lifting mechanism 12 is fixed on the top surface of the first connecting disc 6, and the bottom steel cylinder 1 is fixedly connected to the bottom surface of the second connecting disc 6.
In this embodiment, annular steel column subassembly includes that the axis around the central steel cylinder is the interior annular steel column subassembly and the outer annular steel column subassembly that the concentric circles distributes, interior annular steel column subassembly contains six or more and is the interior steel column 8 of circumference equipartition around the axis of central steel cylinder, outer annular steel column subassembly contains six or more and is the outer steel column 3 of circumference equipartition around the axis of central steel cylinder, all has the clearance between two adjacent interior steel columns and between two adjacent outer steel columns, and the dislocation layout of steel column 8 and a plurality of outer steel column 3 in a plurality of. Because the adjacent two inner steel columns 8 and the two outer steel columns 3 are provided with gaps, and the inner steel columns and the outer steel columns are arranged in a staggered way, the inner steel columns 8 and the outer steel columns 3 are also provided with gaps, and therefore a hollowed-out structure can be formed. The tower body manufactured by the hollow structure has the advantages that most wind can pass through the tower body instead of directly impacting the tower body, so that the windward area of the tower is greatly reduced, the problem of overlarge load brought to the tower by wind load is effectively solved, and the problem of higher total related cost caused by overhigh quality of the traditional tower barrel is solved to a certain extent.
In this embodiment, the upper and lower ends of the inner steel column 8 and the upper and lower ends of the outer steel column 3 are fixedly connected with the first connecting disc 6 and the second connecting disc 9, respectively. The concrete connection mode is that the upper end and the lower end of the inner steel column and the outer steel column are fixedly connected with connecting flanges 13, and the connecting flanges are locked on the first connecting disc and the second connecting disc by utilizing high-strength bolts to realize the fixedly connection.
In this embodiment, the lifting mechanism 12 includes six or more telescopic hydraulic cylinders 4 circumferentially distributed around the axis of the central steel cylinder, the telescopic hydraulic cylinders 4 are vertically disposed, the lower ends of the telescopic hydraulic cylinders 4 are fastened to the top surface of the first connecting disc 6 by high-strength bolts, and the upper ends of the six or more telescopic hydraulic cylinders 4 are fixedly connected with the third connecting disc 10 by high-strength bolts; the bottom of the top steel cylinder 5 is fixedly connected with the top surface of the third connecting disc 10. The telescopic hydraulic cylinder is introduced to drive the blower to lift, so that the height of the blower can be adjusted, the height of the blower can be adjusted according to different wind conditions, and when the wind conditions are lower than the cutting-in speed of the blower, the height of the blower can be properly adjusted; when the wind condition is higher than the cutting speed of the fan, the height of the fan can be properly adjusted. Wind speeds at different heights are fully utilized to generate electricity, and the electricity generation benefit of the wind power plant is effectively improved.
In this embodiment, through holes for facilitating the penetration of the central steel cylinder 2 are coaxially provided on the first connecting disc 6, the second connecting disc 9 and the third disc 10, the upper end of the central steel cylinder 2 penetrates through the third connecting disc 10 and extends into the top steel cylinder 5, and the lower end of the central steel cylinder 2 penetrates through the second connecting disc 9 and extends into the bottom steel cylinder 1.
In this embodiment, the top steel cylinder 5 and the third connecting disc 10, and the bottom steel cylinder 1 and the second connecting disc 9 are all connected through flanges. The top steel cylinder and the bottom steel cylinder both have a certain wall thickness.
In this embodiment, the first connecting disc 6, the second connecting disc 9 and the third connecting disc 10 are all made of steel and have a certain wall thickness, and the first connecting disc 6, the second connecting disc 9 and the third connecting disc 10 are provided with high-strength bolt holes 7 for connecting with high-strength bolts.
According to the wind power tower, on one hand, the side wall of the middle supporting end is designed to be of a hollow structure, so that most wind can conveniently pass through the hollow structure instead of directly causing impact, the problem of insufficient bearing capacity caused by overlarge windward area of a traditional wind power tower barrel is solved, meanwhile, the overall weight of the wind power tower is reduced, and the waste of steel resources is reduced; on the other hand, the hydraulic cylinder is used for driving the fan to lift, so that the problem that the traditional wind power tower is fixed in height and can only generate power by utilizing the wind speed at a certain height is solved.
If the invention discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (4)
1. The utility model provides a penetrating formula liftable wind-powered electricity generation pylon which characterized in that: the device comprises a top steel cylinder, a lifting mechanism, a middle supporting section and a bottom steel cylinder which are sequentially arranged from top to bottom, wherein a central steel cylinder is arranged between the top steel cylinder and the bottom steel cylinder in a penetrating manner; the middle supporting section is sleeved on the outer side of the central steel cylinder, the peripheral side wall of the middle supporting section is of a hollow structure, the lifting mechanism is vertically arranged at the top of the middle supporting section, and the telescopic part of the lifting mechanism is fixedly connected with the bottom of the top steel cylinder so as to drive the top steel cylinder to lift; the top of the bottom steel cylinder is fixedly connected with the bottom of the middle supporting section;
the middle support section comprises an annular steel column assembly, a first connecting disc and a second connecting disc which are respectively fixedly connected with the upper end and the lower end of the annular steel column assembly, the lifting mechanism is fixed on the top surface of the first connecting disc, and the bottom steel cylinder is fixedly connected with the bottom surface of the second connecting disc;
The annular steel column assembly comprises an inner annular steel column assembly and an outer annular steel column assembly which are distributed in concentric circles around the axis of the central steel cylinder, the inner annular steel column assembly comprises a plurality of inner steel columns which are uniformly distributed in the circumference around the axis of the central steel cylinder, the outer annular steel column assembly comprises a plurality of outer steel columns which are uniformly distributed in the circumference around the axis of the central steel cylinder, gaps are reserved between every two adjacent inner steel columns and between every two adjacent outer steel columns, and the inner steel columns and the outer steel columns are arranged in a staggered mode to form a hollowed-out structure;
The upper and lower ends of the inner steel column and the upper and lower ends of the outer steel column are fixedly connected with the first connecting disc and the second connecting disc respectively;
The lifting mechanism comprises a plurality of telescopic hydraulic cylinders which are circumferentially distributed around the axis of the central steel cylinder, the telescopic hydraulic cylinders are vertically arranged, the lower ends of the telescopic hydraulic cylinders are fixed on the top surface of the first connecting disc, and the upper ends of the telescopic hydraulic cylinders are fixedly connected with a third connecting disc; the bottom of the top steel cylinder is fixedly connected with the top surface of the third connecting disc;
The first connecting disc, the second connecting disc and the third disc are coaxially provided with through holes which are favorable for the penetration of the central steel cylinder, the upper end of the central steel cylinder penetrates through the third connecting disc and stretches into the top steel cylinder, and the lower end of the central steel cylinder penetrates through the second connecting disc and stretches into the bottom steel cylinder.
2. A through-type liftable wind power tower according to claim 1, wherein: the top steel cylinder is connected with the third connecting disc through a flange, and the bottom steel cylinder is connected with the second connecting disc through a flange.
3. A through-type liftable wind power tower according to claim 1, wherein: the first connecting disc, the second connecting disc and the third connecting disc are all made of steel.
4. The working method of the transparent liftable wind power tower is characterized by comprising the following steps of: the method comprises the steps that the through type liftable wind power tower according to any one of claims 1-2 is adopted, a cabin and an impeller are arranged in a top steel cylinder during operation, and when wind conditions are lower than the cutting-in speed of a fan, a telescopic hydraulic cylinder drives the top steel cylinder to ascend so as to raise the height of the fan; when the wind condition is higher than the cutting speed of the fan, the telescopic hydraulic cylinder drives the top steel cylinder to descend so as to reduce the height of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387482.XA CN111022268B (en) | 2019-12-30 | 2019-12-30 | Penetrating type liftable wind power tower and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911387482.XA CN111022268B (en) | 2019-12-30 | 2019-12-30 | Penetrating type liftable wind power tower and working method thereof |
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| CN111022268A CN111022268A (en) | 2020-04-17 |
| CN111022268B true CN111022268B (en) | 2024-06-21 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211230712U (en) * | 2019-12-30 | 2020-08-11 | 福州大学 | Transparent type liftable wind power tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6782667B2 (en) * | 2000-12-05 | 2004-08-31 | Z-Tek, Llc | Tilt-up and telescopic support tower for large structures |
| CN104791202A (en) * | 2015-04-17 | 2015-07-22 | 哈尔滨工业大学（威海） | Steel and concrete combined structure wind power tower |
| CN109306938B (en) * | 2017-07-27 | 2020-04-14 | 新疆金风科技股份有限公司 | Wind turbine tower, tower installation method and wind turbine |
| CN110439758B (en) * | 2019-08-14 | 2024-08-09 | 北京中建建筑科学研究院有限公司 | Node transition tower section of wind power steel-concrete combined tower, wind power tower and construction method of wind power tower |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211230712U (en) * | 2019-12-30 | 2020-08-11 | 福州大学 | Transparent type liftable wind power tower |
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