CN208763818U - A kind of Wind turbines prestressing force stay-supported pylon heightening structure - Google Patents
A kind of Wind turbines prestressing force stay-supported pylon heightening structure Download PDFInfo
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- CN208763818U CN208763818U CN201820723228.7U CN201820723228U CN208763818U CN 208763818 U CN208763818 U CN 208763818U CN 201820723228 U CN201820723228 U CN 201820723228U CN 208763818 U CN208763818 U CN 208763818U
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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
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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
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model provides a kind of Wind turbines prestressing force stay-supported pylon heightening structure, it increases wind-powered machine unit hub height by way of newly-increased steel tower tube, and newly-increased steel tower tube is made of one or more snippets steel tower tube；Wind turbines after increasing from top to bottom are followed successively by blower head, original steel tower tube, newly-increased steel tower tube and original blower foundation.The utility model is designed reasonably construction is simple, is connected firmly, is practical, under the premise of continuing to use original blower foundation and tower, can effectively increase wind-powered machine unit hub height.
Description
Technical field
The utility model belongs to the high tower technical field of low wind speed area Wind turbines, and in particular to a kind of top is conventional steel
Tower, lower part are prestressing force stay-supported pylon heightening structures.
Background technique
Currently, China's tradition Wind turbines mostly use greatly steel cone tower, existing major part wind-powered machine unit hub
It is highly low, it is low compared to high wheel hub Wind turbines generating efficiency.In order to efficiently use the wind energy resources in low wind speed area, land wind
Motor group will be gradually to high-power and altitude development.At this stage, prestressed concrete-steel cylinder mixing pylon and soft tower tower
Frame has obtained extensively since it is able to satisfy the requirement of large-scale wind electricity machine unit hub height and rigidity in high tower technical field of wind power
General concern provides new thinking and direction for the development of the following land wind-powered electricity generation industry, but this still can not fundamentally change now
The status for having the low hub height Wind turbines generating efficiency for operation of having gone into operation low.
Utility model content
The purpose of this utility model is in view of the above problems, to provide a kind of reasonable design, construction is simple, connection jail
Solid, it is practical, under the premise of continuing to use original blower foundation and tower, the wind turbine of wind-powered machine unit hub height can be effectively increased
Group prestressing force stay-supported pylon heightening structure.For this purpose, the utility model uses following technical scheme:
A kind of Wind turbines prestressing force stay-supported pylon heightening structure, it is characterised in that: the Wind turbines prestressing force bracing wire
Formula pylon heightening structure includes newly-increased steel tower tube, prestress wire, multiple bored concrete piles, increases steel tower tube newly by one or more snippets steel
Tower composition；Wind turbines after increasing from top to bottom are followed successively by blower head, original steel tower tube, newly-increased steel tower tube and original
Blower foundation, multiple bored concrete piles are evenly arranged in the periphery of original blower foundation；
The flange arrangement on newly-increased steel tower tube top is set as being adapted with the flange arrangement of original steel tower tube bottom end, increases steel newly
The connection structure of tower bottom end is set as flange arrangement compatible with original blower foundation；
The flange arrangement on newly-increased steel tower tube top has reinforcement structure；When newly-increased steel tower tube is made of multistage steel tower tube,
Adjacent steel tower tube is connected by flange arrangement, and the upper flanges structure of lower section steel tower tube has reinforcement structure；
Newly-increased steel tower tube the lowermost connection structure is set as flange arrangement compatible with original blower foundation；
The upper anchorage component of setting prestressing force bracing wire on the outside of the upper end of each section of newly-increased steel tower tube；
Original steel tower tube bottom end flange arrangement is connected with newly-increased steel tower tube top flange arrangement by bolt assembly, and each section new
Increase steel tower tube to be connected by flange arrangement with bolt assembly, the flange arrangement of newly-increased steel tower tube bottom end and original blower foundation phase
Even；
Pre-embedded anchoring bolts at the top of bored concrete pile fix the lower anchor component of prestressing force bracing wire using pre-embedded anchoring bolts,
The upper end of each section of steel tower tube of the newly-increased steel tower tube passes through respective prestress wire respectively and is connected with bored concrete pile, steel strand wires
Upper end is anchored at upper anchorage component, is pre-tightened posterior end through tensioning and is passed through the steel strand wires anchoring lower ends that are fixed at the top of bored concrete pile
At component.
Further, the reinforcement structure is included in welding ring stiffener and longitudinal direction at the inner wall of steel tower tube upper end and puts more energy into
Plate.
Further, steel strand wires are evenly arranged along tower circumferential direction, and the arrangement of bored concrete pile is corresponding with prestress wire.
Further, each section of steel tower tube upper and lower ends for increasing steel tower tube newly are processed into L shape flange, and in each section of steel tower tube
Upper end weld 2 layers of ring stiffener and longitudinal stiffener, the flanged plate and ring stiffener middle preset bolt of L shape flange
Hole；The longitudinal direction stiffener, ring stiffener and tower inner wall weld.
The beneficial effects of the utility model are:
(1) the utility model proposes Wind turbines prestressing force stay-supported pylon heightening structure, project amount is few, structure is set
Meter is reasonable, construction is simple, is connected firmly, is practical, can increase wind-powered electricity generation under the premise of continuing to use original blower foundation and tower
The Wind turbines of previous 100m or less hub height can be increased tens of rice more than 100m by machine unit hub height, and energy is preferably
Utilize the wind energy resources in low wind speed area.
(2) after carrying out pre- tensioning to newly-increased steel tower tube by the prestress wire and bored concrete pile of periphery, so that lower junction
Structure, generally in preloading condition, is lifting wind-powered machine unit hub altitudes on the basis of flange connects positioning with bolt assembly
Under, it is ensured that the resistance to capsizing of the tensile strength of tower and stability and blower foundation during fan operation.
(3) the low hub height Wind turbines generating efficiency that can fundamentally change existing operation of having gone into operation low shows
Shape.
Detailed description of the invention
Fig. 1 is Wind turbines prestressing force stay-supported pylon overall structure elevation in the utility model embodiment.
Fig. 2 is the A-A cross-sectional view of Fig. 1, is increased for Wind turbines prestressing force stay-supported pylon in the utility model embodiment
Structure top view.
Fig. 3 is the partial schematic diagram for increasing tower segments junction and steel strand wires drawing ear in the utility model embodiment newly.
Fig. 4 is the direction the B-B view of Fig. 3, to increase tower segments junction flange in the utility model embodiment newly and putting more energy into
The partial schematic diagram of plate.
Fig. 5 is that steel strand wires draw ear top view in the utility model embodiment.
Fig. 6 is the partial schematic diagram of steel strand anchoring component at the top of bored concrete pile in the utility model embodiment.
Fig. 7 is the C-C cross-sectional view of Fig. 6.
Fig. 8 is the D-D cross-sectional view of Fig. 6.
Specific embodiment
The present embodiment is the tower that an original hub height is 72.5m, is 20m's high by adding 2 sections in lower part
Hub height is raised to 112.5m by steel tower tube, is described in further detail with reference to the accompanying drawing to the utility model.
As shown in FIG. 1 to FIG. 8, Wind turbines prestressing force stay-supported pylon heightening structure includes 2 sections newly-increased in the present embodiment
Steel tower tube 3, prestress wire 4, bored concrete pile 5.It is described increase after Wind turbines be from top to bottom followed successively by blower head 1, former
There are steel tower tube section 2, prestressing force stay-supported pylon heightening structure and original blower foundation 6.
The number of segment of newly-increased steel tower tube and each section of length can according to actual needs and comprehensively consider tower whole stress it is special
Property determine.Steel strand wires are evenly arranged along tower circumferential direction, and the quantity and pretension of steel strand wires are determined according to top fan loads；Perfusion
Stake arrangement it is corresponding with prestress wire, uniform circumferential direction be arranged in away from blower foundation outside at a certain distance from, in order to avoid drawing
Influence of the line to surrounding enviroment, bored concrete pile foundation should not be apart from blower foundations too far；The diameter of the bored concrete pile and the long basis of stake
Geology at the stretching force of steel strand wires and selected seat in the plane is surveyed data in detail and is determined.
Each section of newly-increased steel tower tube 3 is connected by prestress wire 4 with bored concrete pile 5, preferably, embodiment
In every section of newly-increased steel tower tube by circumferential 64 tensioning of steel strand wires being evenly arranged, 4 upper end of steel strand wires is anchored to newly-increased steel tower tube 3
At the drawing ear 7 of top outer, lower end is fixed at the steel strand wires anchoring lower ends component at 5 top of bored concrete pile.
As shown in figure 3, being connected between steel tower tube by bolt assembly 8, flange arrangement.Newly-increased 3 upper and lower ends of steel tower tube are equal
At L-shaped flange 9 is processed, and welds 2 layers of ring stiffener 11 and longitudinal stiffener 10, flanged plate 9 and ring in newly-increased tower upper end
To 11 middle preset bolt hole of stiffener, uppermost increases number of bolt hole, positioning and the original of the upper flanges structure of steel tower tube 3 newly
There is the steel tower tube bottom end original bolt hole of flange to be consistent.Longitudinal stiffener 10, ring stiffener 11 and tower inner wall weld.It is vertical
The corner point setting arc aperture 12 connecting to stiffener 10 with 3 inner wall of steel cylinder keeps local stress smooth to avoid stress concentration
Transition, optimizing stress transmission path.The bottom end of newly-increased steel tower tube 3 passes through flange arrangement and bolt assembly and original blower foundation 6
It is connected.
Above-mentioned ring stiffener 11 and longitudinal stiffener 10 participate in flange arrangement, on the one hand can increase flange arrangement
Thickness avoids the too short Fatigue Damage Problem easily caused of bolt length, another aspect energy to achieve the purpose that increase bolt length
The enough intensity for greatly reinforcing flange connection and steel strand wires drawing ear junction.
Connection between each section of steel tower tube 2 of original steel tower tube is connected according to its original connection type.Newly-increased steel tower tube 3
Each section between connected with bolt assembly by flange arrangement, and the upper flanges structure of the steel tower tube of lower section also has above-mentioned ring
To 10 reinforcement structure of stiffener 11 and longitudinal stiffener.
It includes 4 pieces of upper 13,4 pieces of lower floors 16 of floor and strain plate 15 that ear 7 is drawn in the steel strand wires upper end anchoring.Floor 13,
16 and strain plate 15 and 3 outer wall of steel tower tube weld, the gradient of strain plate 15 is determined according to the tensioning angle of steel strand wires 4 to protect
The axis for demonstrate,proving steel strand wires is vertical with strain plate plane.Steel strand wires perforation 17 is opened up among strain plate 15, steel strand wires 4 pass through perforation 17
It is installed, and upper end is anchored to the upper surface of strain plate 15 by the first tapered end 14.
It is circumferential in the present embodiment to be evenly arranged the bored concrete pile 5 that 6 diameters are 1.2m, the geology at the long seat in the plane according to selected by of stake
Data is surveyed in detail and the calculating of tension bearing capacity is determined as 25m, is twisted at the top of bored concrete pile 5 by pre-buried 8 foundation bolts 21 and steel
The anchoring assembly of line lower end is connected.Anchoring lower ends component includes H profile steel 20, stiffener 25, angle board 18 and the second tapered end 19, both
Installation, guarantee is facilitated to be built on the rock, and prestretching operating space can be provided.8 pieces of rectangle stiffeners 25 are placed on H profile steel both wings up and down
Between edge 24,26, and welded with the web of H fashioned iron and the edge of a wing.The flange plate up and down of H profile steel opens up 8 anchor (bolt) holes
22, it is passed through convenient for 8 foundation bolts；And 2 steel strand wires perforation 23 are added on the top flange plate of H profile steel 24.Angle board 18
Axis to adjust steel strand wires is vertical with lower anchored end face, and 4 lower end of steel strand wires is passed through the by the way of tension in lower part
Two tapered ends 19 are anchored to the bottom surface of angle board 18.
All weld seams need to be through grinding process to eliminate residual stress in embodiment；All steel strand wires need to carry out preservative treatment.
Above embodiments are only a kind of more excellent technical solution of the utility model, it will be understood by those of skill in the art that
In the case where not departing from the principles of the present invention and essential situation can in embodiment technical solution or parameter modify or
Person's replacement, should be covered within the scope of the utility model.
Claims (4)
1. a kind of Wind turbines prestressing force stay-supported pylon heightening structure, it is characterised in that: the Wind turbines prestressing force stay-supported
Pylon heightening structure includes newly-increased steel tower tube, prestress wire, multiple bored concrete piles, increases steel tower tube newly by one or more snippets head tower
Cylinder composition；Wind turbines after increasing from top to bottom are followed successively by blower head, original steel tower tube, newly-increased steel tower tube and original wind
Machine basis, multiple bored concrete piles are evenly arranged in the periphery of original blower foundation；
The flange arrangement on newly-increased steel tower tube top is set as being adapted with the flange arrangement of original steel tower tube bottom end, increases steel tower tube newly
The connection structure of bottom end is set as flange arrangement compatible with original blower foundation；
The flange arrangement on newly-increased steel tower tube top has reinforcement structure；It is adjacent when newly-increased steel tower tube is made of multistage steel tower tube
Steel tower tube is connected by flange arrangement, and the upper flanges structure of lower section steel tower tube has reinforcement structure；
Newly-increased steel tower tube the lowermost connection structure is set as flange arrangement compatible with original blower foundation；
The upper anchorage component of setting prestressing force bracing wire on the outside of the upper end of each section of newly-increased steel tower tube；
Original steel tower tube bottom end flange arrangement is connected with newly-increased steel tower tube top flange arrangement by bolt assembly, each section of newly-increased steel
Tower is connected by flange arrangement with bolt assembly, and the flange arrangement of newly-increased steel tower tube bottom end is connected with original blower foundation；
Pre-embedded anchoring bolts at the top of bored concrete pile, it is described using the lower anchor component of the fixed prestressing force bracing wire of pre-embedded anchoring bolts
The upper end of each section of steel tower tube of newly-increased steel tower tube passes through respective prestress wire respectively and is connected with bored concrete pile, steel strand wires upper end
It is anchored at upper anchorage component, pre-tightens posterior end through tensioning and be fixed at the steel strand wires anchoring lower ends component at the top of bored concrete pile.
2. a kind of Wind turbines prestressing force stay-supported pylon heightening structure as described in claim 1, it is characterised in that: described to add
Strong structure, which is included at the inner wall of steel tower tube upper end, welds ring stiffener and longitudinal stiffener.
3. a kind of Wind turbines prestressing force stay-supported pylon heightening structure as described in claim 1, it is characterised in that: steel strand wires
It is evenly arranged along tower circumferential direction, the arrangement of bored concrete pile is corresponding with prestress wire.
4. a kind of Wind turbines prestressing force stay-supported pylon heightening structure as described in claim 1, it is characterised in that: newly-increased steel
Each section of steel tower tube upper and lower ends of tower are processed into L shape flange, and weld 2 layers of ring stiffener in the upper end of each section of steel tower tube
With longitudinal stiffener, the flanged plate and ring stiffener middle preset bolt hole of L shape flange；The longitudinal direction stiffener, circumferential direction add
Strength plate and tower inner wall weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820723228.7U CN208763818U (en) | 2018-05-16 | 2018-05-16 | A kind of Wind turbines prestressing force stay-supported pylon heightening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820723228.7U CN208763818U (en) | 2018-05-16 | 2018-05-16 | A kind of Wind turbines prestressing force stay-supported pylon heightening structure |
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| Publication Number | Publication Date |
|---|---|
| CN208763818U true CN208763818U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820723228.7U Active CN208763818U (en) | 2018-05-16 | 2018-05-16 | A kind of Wind turbines prestressing force stay-supported pylon heightening structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506169A (en) * | 2018-05-16 | 2018-09-07 | 中国电建集团华东勘测设计研究院有限公司 | A kind of Wind turbines prestressing force stay-supported pylon increases method and structure |
| 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 |
-
2018
- 2018-05-16 CN CN201820723228.7U patent/CN208763818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506169A (en) * | 2018-05-16 | 2018-09-07 | 中国电建集团华东勘测设计研究院有限公司 | A kind of Wind turbines prestressing force stay-supported pylon increases method and structure |
| 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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