CN110374818A - Wind power generating set - Google Patents
Wind power generating set Download PDFInfo
- Publication number
- CN110374818A CN110374818A CN201910759480.2A CN201910759480A CN110374818A CN 110374818 A CN110374818 A CN 110374818A CN 201910759480 A CN201910759480 A CN 201910759480A CN 110374818 A CN110374818 A CN 110374818A
- Authority
- CN
- China
- Prior art keywords
- tower
- tightening apparatus
- drag
- line
- section
- Prior art date
- 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.)
- Granted
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Classifications
-
- 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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of wind power generating sets, it is characterized in that: pre-tightening apparatus is installed between lower flange in conventional steel tower, each section of tower upper flange is connect by the device with the lower flange of upper part tower, and is connect by the device with the upper flange of its underpart tower.The pre-tightening apparatus connects used high-strength bolt instead of conventional steel tower, tower is linked together from top to bottom, and improve tower rigidity, frequency and bearing capacity.It needs to adjust drag-line tensioning degree according to overall performance, rigidity and frequency appropriate can be obtained.When using the device, the drag-line pre-tightening apparatus between two sections of adjacent towers offsets one from another certain angle can be bottom-up when then installing tower at the scene, gradually pre-tightens each section of tower, facilitates construction.
Description
Technical field
The present invention relates to field of new energy technologies more particularly to a kind of wind power generating sets.
Background technique
In order to promote wind power generating set generated energy, impeller diameter is continued to increase, and tower height increasingly increases.For normal
Wind power generating set is advised, as height increases, the rigidity of steel tower drum and (intrinsic) frequency rapid decrease, when the intrinsic frequency of tower
When rate and impeller turn frequently close, there is the risk to resonate, influences Wind turbines overall performance even safety；In addition, tower is high
Degree increases but also its intensity decreases.
To solve the above-mentioned problems, part of the manufacturer protects tower by increasing considerably the means of tower diameter and wall thickness
Intensity and rigidity appropriate are held, tower weight is thereby resulted in and dramatically increases；Part of the manufacturer makes by adjusting the method for control strategy
Wind power generating set adapts to the tower of Low rigidity (intrinsic frequency), but increases Wind turbines control difficulty, and there are sizable
Risk.
Summary of the invention
The present invention is directed to overcome the prior art, a kind of novel wind generator group is provided, by drag-line to routine
Steel tower drum applies prestressing force, plays the role of structural strengthening, improves tower rigidity, frequency and bearing capacity, solves steel tower drum
The technical issues of rigidity and frequency rapid decrease influence overall performance in turn after height increases, the pre-tightening apparatus is at low cost, adjusts
It is convenient.Technical scheme is as follows:
A kind of wind power generating set, installs pre-tightening apparatus in conventional steel tower between lower flange, each section of tower it is upper
Flange is connect with the lower flange of upper part tower by the pre-tightening apparatus and the lower flange of each section of tower and its underpart tower
Upper flange is connected by the pre-tightening apparatus, wherein the pre-tightening apparatus is divided into lock portion up and down, and upper lock portion includes: spiral shell
Bar, nut, sleeve, short rod and drag-line, structure type are as follows: screw rod passes through the lower flange of nut and upper section tower, passes through spiral shell
Line is connected and fixed, and the screw rod other end is connected through a screw thread with upper cartridge, and lower cartridge is connected through a screw thread with short rod, short drawing
The bar other end is connect with drag-line；Lower lock portion includes: screw rod, nut, sleeve, long draw and drag-line, screw rod pass through nut and
The upper flange of lower section tower is connected through a screw thread fixation, and the screw rod other end is connected through a screw thread with lower cartridge, upper cartridge with
Long draw is connected through a screw thread, and the long draw other end is connect with drag-line.
The pre-tightening apparatus connects used high-strength bolt instead of conventional steel tower, and tower is linked as one from top to bottom
Body, and improve tower rigidity, frequency and bearing capacity.It needs to adjust drag-line tensioning degree according to overall performance, can obtain
Rigidity and frequency appropriate.When using the device, the drag-line pre-tightening apparatus between two sections of adjacent towers offsets one from another certain angle,
, can be bottom-up when tower is then installed at the scene, each section of tower is gradually pre-tightened, construction is facilitated.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings, in attached drawing:
Fig. 1 is the main view of wind power generating set of the invention.
Fig. 2 is the cross-sectional view of the tower of wind power generating set of the invention.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Fig. 4 is the portion the I partial enlarged view of Fig. 2.
Fig. 5 is the portion the II partial enlarged view of Fig. 2.
Fig. 6 is suspension cable pre-tightening apparatus schematic diagram.
Description of symbols:
1 basis, 2 towers, 3 cabins, 4 impellers, 5 pre-tightening apparatus；
2-1 foundation ring, the bottom 2-2 section, upper section in 2-3 middle and lower sections, 2-4, the top 2-5 section, 2-6 changeover portion, on 2-1-1 foundation ring
Flange, the bottom 2-2-1 section upper flange, the bottom 2-2-2 section lower flange, 2-3-2 middle and lower sections lower flange, upper section upper flange, 2-5- in 2-4-1
1 top section upper flange, 2-5-2 push up section lower flange, 2-6-1 changeover portion upper flange, 2-6-2 changeover portion lower flange；
5-1 screw rod, 5-2 nut, 5-3 sleeve, 5-4 short rod, 5-5 drag-line, 5-6 long draw, 5-7 suspension cable, 5-2-1 spiral shell
Line, 5-2-2 horn mouth, 5-3-1 left hand thread, 5-3-2 right-handed thread, 5-3-3 fabrication hole, 5-7-1 suspension cable (1), 5-7-2 are oblique
Drag-line (2), 5-7-3 suspension cable (3).
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only of the invention
A part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
As shown in figures 1 to 6, a kind of novel wind generator group tower, comprising: 1 basis, 2 towers (this case is for 4 sections),
3 cabins, 4 impellers, 5 pre-tightening apparatus.
As shown in Fig. 1,2,3,4,5, pre-tightening apparatus 5 is installed between lower flange in conventional steel tower, replaces adjacent method
High-strength bolt used by orchid connects, tower is linked together from top to bottom.Foundation ring 2-1 is embedded in basis 1, method on foundation ring in advance
Nut 5-2 and long draw 5-6 are installed, the top long draw 5-6 and drag-line 5-5 connect between blue 2-1-1 and bottom section lower flange 2-2-2
Connect, the top drag-line 5-5 is connect with short rod 5-4, and the spiro rod section of short rod 5-4 screws in the lower part sleeve 5-3, the top sleeve 5-3 with
Screw rod 5-1 connection, screw rod 5-1 pass through nut 5-2 and are installed on bottom section upper flange 2-2-1 and middle and lower sections lower flange 2-3-2.Then,
Foundation ring 2-1 and bottom section 2-2 are linked together by pre-tightening apparatus 5.Pre-tightening apparatus 5 can choose arrangement not according to tower performance requirement
The drag-line of same specification, different number, this example are preferably 12 groups of drag-lines.
As shown in Fig. 1,2,3,4,5, bottom section 2-2 and middle and lower sections 2-3 is linked together by pre-tightening apparatus 5.The main distinction is
The pre-tightening apparatus 5 of pre-tightening apparatus 5 in middle and lower sections 2-3 and bottom section 2-2 offset one from another certain angle.Therefore tower is installed at the scene
When, can the construction of bottom-up tower section one by one, ensure that the stability of tower in hoisting process.It pushes up section 2-5 and passes through pre-tightening apparatus 5
It is linked together with middle upper section 2-4, top section upper flange 2-5-1 is connect with changeover portion 2-6, and changeover portion 2-6 is connect with cabin 3.Such as figure
1, shown in 2.
As shown in Figure 4,5, nut 5-2 is connect by screw thread 5-2-1 with tower drum flange.Since tower is there are certain taper,
There may be small deflections when screw rod 5-1, long draw 5-6 are arranged, horn mouth 5-2-2 is arranged to accommodate partially in the end nut 5-2
Tiltedly.
As shown in Figure 2,4, the both ends sleeve 5-3 are machined with left hand thread 5-3-1,5-3-2 right-handed thread respectively, respectively with two
The screw rod 5-1 of side, short rod 5-4 connection, play anti-loose effect；There is fabrication hole 5-3-3 in the middle part of sleeve 5-3, for being inserted into crow bar
Tentatively pre-tightened.
As shown in fig. 6, suspension cable 5-7 can also be arranged in groups, facilitate the carrying to torque for further increasing tower 2
Ability.
Working principle of the present invention is as follows:
By 5 tension cable 5-5 of pre-tightening apparatus, tower 2 is linked together from top to bottom, adjusts the tensioning journey of drag-line 5-5
Degree, increases the rigidity and frequency of tower, so that its frequency is matched with wind power generating set overall performance, while also improving tower
Bearing capacity.It solves that high tower frequency is relatively low with lesser cost, influences the problem of Wind turbines overall performance and safety, phase
Compared with the means (increasing considerably weight) for increasing tower diameter and wall thickness, there are significant economic advantages.
After pre-tightening apparatus 5, used high-strength bolt is connected instead of conventional steel tower, is offset to a certain extent
Departmental cost.In addition, pre-tightening apparatus 5 is completed, stretching is pre- next, and later maintenance workload is small, reduces maintenance cost.
Pre-tightening apparatus 5 divides for several segments, and the drag-line pre-tightening apparatus between two sections of adjacent towers offsets one from another certain angle, because
Pre-tightening apparatus in this each section of tower can be pre-assembled in factory, when on-site hoisting tower, it is only necessary to using stretcher to drag-line
It is tensioned, is not needed optional equipment crane and hang drag-line, the operation between each section is not interfere with each other, easy for construction, effect
Rate is high.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In addition, "front", "rear", "left", "right", "upper", "lower", "inner", "outside" etc. are in attached drawing herein
The placement status of expression is reference.
It should also be noted that, the above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the scope of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (4)
1. a kind of wind power generating set, it is characterised in that: pre-tightening apparatus is installed between lower flange in conventional steel tower, each section
The upper flange of tower and the lower flange of upper part tower by the pre-tightening apparatus connect and the lower flange of each section of tower and its under
The upper flange of portion's tower is connected by the pre-tightening apparatus, wherein the pre-tightening apparatus is divided into lock portion up and down, upper lock portion
It include: screw rod, nut, sleeve, short rod and drag-line, structure type are as follows: screw rod passes through the lower flange of nut and upper section tower,
It is connected through a screw thread fixation, the screw rod other end is connected through a screw thread with upper cartridge, and lower cartridge and short rod are connected by screw thread
It connects, the short rod other end is connect with drag-line；Lower lock portion includes: screw rod, nut, sleeve, long draw and drag-line, and screw rod passes through
The upper flange of nut and lower section tower is connected through a screw thread fixation, and the screw rod other end is connected through a screw thread with lower cartridge, sleeve
Top is connected through a screw thread with long draw, and the long draw other end is connect with drag-line.
2. wind power generating set as described in claim 1, which is characterized in that geometrically average on per two sections of adjacent towers
Several pre-tightening apparatus are distributed, be all staggered certain angle per the arrangement of pre-tightening apparatus in two sections of adjacent towers.
3. wind power generating set as described in claim 1, which is characterized in that the nut of the pre-tightening apparatus is provided with horn mouth.
4. wind power generating set as described in claim 1, which is characterized in that the drag-line of the pre-tightening apparatus tilts certain angle
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759480.2A CN110374818B (en) | 2019-08-16 | 2019-08-16 | Wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759480.2A CN110374818B (en) | 2019-08-16 | 2019-08-16 | Wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374818A true CN110374818A (en) | 2019-10-25 |
| CN110374818B CN110374818B (en) | 2020-10-02 |
Family
ID=68259647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910759480.2A Active CN110374818B (en) | 2019-08-16 | 2019-08-16 | Wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110374818B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201818097U (en) * | 2010-05-28 | 2011-05-04 | 湖北小天地科技有限公司 | Prestressed steel rod |
| CN102064494A (en) * | 2010-11-12 | 2011-05-18 | 宁波天弘电力器具有限公司 | Wire lifting device of electric power rush repair tower |
| US20110138707A1 (en) * | 2010-08-18 | 2011-06-16 | General Electric Company | Tower with adapter section |
| DE102013016604A1 (en) * | 2013-10-07 | 2015-04-09 | EcoEnterprises GmbH | Steel tube tower of a wind turbine, as well as methods for manufacturing and assembling the tower components |
-
2019
- 2019-08-16 CN CN201910759480.2A patent/CN110374818B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201818097U (en) * | 2010-05-28 | 2011-05-04 | 湖北小天地科技有限公司 | Prestressed steel rod |
| US20110138707A1 (en) * | 2010-08-18 | 2011-06-16 | General Electric Company | Tower with adapter section |
| CN102064494A (en) * | 2010-11-12 | 2011-05-18 | 宁波天弘电力器具有限公司 | Wire lifting device of electric power rush repair tower |
| DE102013016604A1 (en) * | 2013-10-07 | 2015-04-09 | EcoEnterprises GmbH | Steel tube tower of a wind turbine, as well as methods for manufacturing and assembling the tower components |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110374818B (en) | 2020-10-02 |
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