CN106523295A - Step-by-step variable diameter cast-in-place concrete wind turbine tower - Google Patents
Step-by-step variable diameter cast-in-place concrete wind turbine tower Download PDFInfo
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- CN106523295A CN106523295A CN201610988729.3A CN201610988729A CN106523295A CN 106523295 A CN106523295 A CN 106523295A CN 201610988729 A CN201610988729 A CN 201610988729A CN 106523295 A CN106523295 A CN 106523295A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 95
- 239000010959 steel Substances 0.000 claims abstract description 95
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims description 11
- 238000009415 formwork Methods 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
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- 238000004026 adhesive bonding Methods 0.000 claims description 3
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- 230000015271 coagulation Effects 0.000 claims description 2
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Classifications
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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
-
- 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
The invention provides a step-by-step variable diameter cast-in-place concrete wind turbine tower. The step-by-step variable diameter cast-in-place concrete wind turbine tower comprises an upper steel tower section, a lower cast-in-place concrete tower section, a prestressed steel strand module and a reinforced concrete base. The upper steel tower section is connected with the lower cast-in-place concrete tower section through the prestressed steel strand module; the lower cast-in-place concrete tower section is a step-by-step variable diameter flagpole tower section fixedly connected to a base; and the upper end of the prestressed steel strand module is anchored on a steel tower section bottom flange, and the lower end is anchored in the base. The tower is better in such performances as stability, durability, integrity and shock resistance, overcomes restraint in such aspects as large-diameter manufacturing, transportation and lifting of a traditional steel tower, can increase the wind resource utilization rate in low-wind-speed districts, increases the power generation capacity, can save the template cost and the steel materials, and is a novel wind driven generator tower with safety, reliability, convenience to construct, economy and environmental protection.
Description
Technical field
The invention belongs to wind power plant, more particularly to reducing type cast-in-place concrete tower frame for wind generating set step by step.
Background technology
The energy is the basis of human social development, and the renewal of energy technology and the change of variety of energy sources decide human society
The property and mode of development.Since 20th century, on the one hand widely using for the chemical fuel with coal and oil as representative cause
The productivity of the mankind obtains huge raising and development；On the other hand, the carbon dioxide and harmful gas of chemical fuel discharge are consumed
Body brings serious environmental problem, and the safety of development and the earth to human society brings threat.Reduce greenhouse gases
The deterioration of environmental problem is discharged and avoids, become energy industry pays close attention to target.For this purpose, various countries scientist all find and
Research regenerative resource is run into solving the problems, such as current human social.
Regenerative resource of the wind-power electricity generation as cleaning, with significant society and environmental benefit, for promotion, China can
The renewable sources of energy develop important in inhibiting, and country supports and encourages the exploitation to wind-powered electricity generation.Tower frame for wind generating set is used for connecting wind-powered electricity generation
Set engine room and foundation, undertake horizontal force when wind-driven generator runs, vertical force and moment of flexure.China is most at present
Tower frame for wind generating set is using conical steel tower.
In recent years, as the development that China's wind-powered electricity generation is built, the single-machine capacity of Wind turbines are increasing, hub height is more next
It is higher.When the hub height of Wind turbines is more than 100m, traditional round taper steel tower bottom section diameter will be such big more than 5m
Diameter steel cylinder manufactures, transports and lift extremely difficult；According to minor diameter thick-walled steel cylinders, then overall pylon rigidity is too small, unit
Vibration is excessive and uneconomical.Additionally, when steel pylon height is more than 100 m, fitful wind easily excites prolonged pylon whirlpool exciting
It is dynamic, the problems such as cause hoisting personnel step on tower operation, head and be difficult device to hole and connect, more likely can be because of long-time whirlpool exciting
It is dynamic to cause pylon and bolt to scrap.
The content of the invention
For above-mentioned problem, the present invention provides a kind of reducing type cast-in-place concrete tower frame for wind generating set step by step.Should
Pylon hub height is big, the natural frequency of vibration is little, and unit amplitude is little, and the performance such as pylon steadiness, durability, globality and shock resistance is equal
Preferably；Which not only overcomes the constraint of the aspects such as manufacture, transport and the lifting of traditional steel tower major diameter, and can improve low wind
The wind-resources utilization rate in fast area, lifts generated energy, and can save formwork cost and steel, is that one kind is safe and reliable, constructs just
Prompt and economic and environment-friendly novel wind generator pylon.
For achieving the above object, the technical solution adopted in the present invention is：Reducing type cast-in-place concrete Wind turbines step by step
Pylon, including top steel tower section, bottom cast-in-place concrete tower section, prestress steel twist line component and reinforced concrete plinth；On
Portion's steel tower section is connected by prestress steel twist line component with bottom cast-in-place concrete tower section；Bottom cast-in-place concrete tower section is affixed
On reinforced concrete plinth；Prestress steel twist line component upper and lower side upper end and reinforced concrete respectively with cast-in-place concrete tower section
Soil matrix seat is anchored.
In some embodiments, the top steel tower section includes tower wall and bottom flange, and top steel tower section passes through bottom method
Blue and prestress steel twist line component is connected with cast-in-place concrete tower section；For water proof and dust proof, steel tower section and cast-in-place coagulation on top
Gluing waterproof material on the outside of native tower section connecting place.
Further, waterproof material need to have certain ductility and good durability, guaranteeing in steel tower section and
Cast-in-place concrete tower section junction positive sealing for a long time under load action during generation micro-displacement.
In some embodiments, the bottom cast-in-place concrete tower section includes multiple straight sections, oblique section and top section；Straight section is by sliding
Module and cast-in-situ is formed, and oblique section and the top independent formwork erection of section are cast-in-place, and the diameter of each straight section is consistent, and straight section diameter from top to down
Increase successively, the diameter of oblique section is up-small and down-big, connected by oblique section between two neighboring straight section, oblique section is had with the junction of straight section
There is the knuckle matched with straight section, at the knuckle of oblique section, prepare stiffener or steel plate.Multiple straight sections, oblique section and top section are constituted step by step
The flagpole type tower section of reducing.The slope of the diameter of each section of the bottom cast-in-place concrete tower section, height, wall thickness and oblique section is according to tower
Section stressing conditions combine pylon whole height and live movement requirement determines.In some embodiments, the prestress wire group
Part includes steel strand wires, steel tower section bottom flange, anchoring lower ends device and tapered end.Steel strand wires upper end is anchored at steel tower section bottom flange
On, anchoring lower ends device end is embedded in pedestal.
Further, steel strand wires can be made up of sub-thread or multiply compressor wire, need to do certain anti-corrosion measure.Steel is twisted
Line is had a certain degree with reinforced concrete plinth, its length, diameter, radical and need to be calculated according to loading condition with opening size etc.
Obtain.Treat that bottom cast-in-place concrete reaches design strength, top steel tower section is hung in cast-in-place concrete tower section, by steel strand wires
It is connected on the bottom flange of steel tower section through longitudinal sleeve pipe, prestressing force is applied to the steel strand wires in prestress steel twist line component,
Locked with tapered end again.
In some embodiments, the reinforced concrete plinth is connected in the straight section with bottom cast-in-place concrete tower section bottom
Place's arrangement strengthens arrangement of reinforcement；The section form of reinforced concrete plinth, size and buried depth etc. are according to foundation bearing capacity and loading condition
It is determined that, reinforced concrete plinth can carry out protection of banketing in reinforced concrete plinth side and top according to field condition.
The present invention is due to using above technical scheme, being allowed to compared with prior art, have the advantage that with good effect and be：
（1）Cast-in-place concrete tower section straight section employs sliding mode technology, relative to cone-type tower frame structure, simplifies form work engineering, reduces
Formwork cost, and reducing stress condition for isodiametric pylon is more preferable step by step；（2）Using cast-in-place concrete structure,
Compared to assembled pylon more preferably, which is avoided the performances such as pylon good integrity, antidetonation, waterproof and dustproof with the combination of steel tower section
The steel tower section of major diameter was adopted, its manufacture, transport is overcome and the constraint of aspect such as is lifted；（3）Cast-in-place concrete
Steel combination reduces the increase of pylon hub height, the natural frequency of vibration, amplitude reduction, is conducive to improving generated energy, is conducive to low wind speed
The wind-resources in area are utilized, and are conducive to avoiding pylon that vortex-induced vibration and resonance occur, are also beneficial to on-site hoisting and unit safety
Stable operation；（4）Prestress steel twist line component makes pylon in preloading condition, the steadiness raising of structure, durability and cracking resistance
Property is good；（5）Steel tower section bottom flange can save steel as the upper anchor slab of prestress steel twist line component.
Description of the drawings
With reference to accompanying drawing, by following detailed descriptions, the above-mentioned and other feature of the present invention and excellent can be more clearly understood that
Point, wherein：
Fig. 1 is the structure front schematic view of the embodiment of the present invention.
Fig. 2 is the cast-in-place concrete tower section of the embodiment of the present invention and steel tower section junction schematic diagram（Aminoacyl site enlarged drawing）.
Fig. 3 is the outer beveled structure schematic diagram of the oblique section of cast-in-place concrete tower section of the embodiment of the present invention（B positions enlarged drawing）.
Fig. 4 is beveled structure schematic diagram in the oblique section of cast-in-place concrete tower section of the embodiment of the present invention（C positions enlarged drawing）.
Fig. 5 is the structure top schematic diagram of the embodiment of the present invention（O-O sectional views）.
Label declaration：
1- steel tower section tower walls
2- steel tower sections bottom flange
3- cast-in-place concrete tower section straight sections
The oblique section of 4- cast-in-place concrete tower sections
5- cast-in-place concrete tower sections top section
6- steel strand wires
7- tapered ends
8- longitudinal directions sleeve pipe
9- stiffeners
10- anchoring lower ends devices
11- reinforced concrete plinths
12- waterproof materials.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, below will
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.However,
The present invention can be realized in many different forms, and should not be construed as and limited by the embodiment for herein proposing.Conversely, proposing
These embodiments are, in order to reach fully and complete disclosure, and to make those skilled in the art understand the present invention's completely
Scope.In these accompanying drawings, for clarity, may be exaggerated the size and relative size in layer and region.
As shown in figure 1, the present embodiment is reducing type cast-in-place concrete tower frame for wind generating set step by step, including top steel tower
The ingredient such as section, bottom cast-in-place concrete tower section, prestress steel twist line component and reinforced concrete plinth；Top steel tower section
It is attached thereto above cast-in-place concrete tower section and by prestress steel twist line component；Bottom cast-in-place concrete tower section is fixed in base
On seat；Upper end and the reinforced concrete plinth anchoring respectively with cast-in-place concrete tower section of prestress steel twist line component upper and lower side.
As shown in Fig. 2 the top steel tower section includes the ingredient such as tower wall 1 and bottom flange 2, top steel tower section
It is connected with bottom cast-in-place concrete tower section by bottom flange 2 and prestress steel twist line component；Top steel tower section external diameter is 4000
Mm, the external diameter of bottom cast-in-place concrete tower section top section 5 is 4300 mm；It is connected with cast-in-place concrete tower section in steel steel tower section
The gluing waterproof material in the outside at place 12.
As shown in figure 1, in the present embodiment, the bottom cast-in-place concrete tower section is by 2 straight sections, 3,2 oblique sections 4 and 1
Top section 5 is constituted；Straight section 3 is formed by sliding formwork is cast-in-place, and oblique section 4 and top 5 independent formwork erection of section are cast-in-place, straight section 3, oblique section 4 and 5 groups of the section in top
Into the flagpole type tower section of reducing step by step；Longitudinal sleeve pipe 8 of steel strand is reserved with cast-in-place concrete tower section top section 5；Treat cast-in-place
Concrete reaches design strength, and steel tower section is hung in cast-in-place concrete tower section；Steel strand wires 6 are connected through longitudinal sleeve pipe 8
To on the bottom flange 2 of steel tower section, prestressing force is applied to steel strand wires 6, then is locked with tapered end 7.
The prestress steel twist line component is by 7 groups of steel strand wires 6, steel tower section bottom flange 2, anchoring lower ends device 10 and tapered end
Into.Steel strand wires upper end is anchored on steel tower section bottom flange 2, and 10 end of anchoring lower ends device is embedded in pedestal 11.
As shown in Fig. 1 ~ 5, the bottom cast-in-place concrete tower section total height is 30 m, and 7000 mm of bottom external diameter, outside top
4300 mm of footpath.High 9.45 m of straight section, high 4.05 m of oblique section, wall thickness are 300 mm；Top section high 3 m, 600 mm of wall thickness；Slope
Slope over 10 is 1：6.Strengthen arrangement of reinforcement in 10 end of prestress wire anchoring lower ends device；Match somebody with somebody stiffener at 4 knuckle of oblique section
9。
The reinforced concrete plinth 11 near 3 connecting place of straight section with cast-in-place concrete tower section bottom is strengthened matching somebody with somebody
Muscle；Reinforced concrete plinth 11 adopts octagon raft mat foundation；Filled out in 11 side of reinforced concrete plinth and top
Soil protection.
The waterproof material 12 need to have certain ductility and good durability, to guarantee in steel tower section and cast-in-place
Concrete tower segment junction positive sealing for a long time under load action during generation micro-displacement.1.5mm is adopted in the present embodiment
Thick self-adhered polymer modified bitumen waterproofing membrane and high molecular water-proof paint, but do not glue reality in seam crossing and leave the more than needed of 1cm
Length.
The steel strand wires 6 are multiply compressor wire（16 Φs15.2 cover without steel strand wires outsourcing PE is cohered）The steel of composition
Tow, 40 beam, circumferentially disposed along pylon altogether.With opening as 6 m, upper and lower anchored end is 200 mm from tower section wall to steel strand wires.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
With reference to the foregoing embodiments the present invention is described in detail, it will be understood by those of skill in the art which still can be right
Technical scheme described in previous embodiment is modified, or carries out equivalent to which part technical characteristic；And these
Modification is replaced, and does not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. reducing type cast-in-place concrete tower frame for wind generating set step by step, it is characterised in that：It is cast-in-place mixed including top steel tower section, bottom
Solidifying soil tower section, prestress steel twist line component and reinforced concrete plinth；Top steel tower section is led to bottom cast-in-place concrete tower section
Cross prestress steel twist line component to be connected；Bottom cast-in-place concrete tower section is fixed on reinforced concrete plinth；Prestress wire
Upper end and the reinforced concrete plinth anchoring respectively with cast-in-place concrete tower section of component upper and lower side.
2. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 1, it is characterised in that：The top
Steel tower section includes tower wall（1）With bottom flange（2）, top steel tower section is by bottom flange（2）With prestress steel twist line component
It is connected with cast-in-place concrete tower section；The gluing waterproof material on the outside of top steel tower section and the cast-in-place concrete tower section connecting place
（12）.
3. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 1, it is characterised in that：The bottom
Cast-in-place concrete tower section includes pushing up section（5）, multiple straight sections（3）With oblique section（4）；Straight section（3）Form by sliding formwork is cast-in-place, oblique section
（4）With top section（5）Individually formwork erection is cast-in-place, each straight section（3）Diameter be consistent, and straight section（3）From top to down diameter according to
Secondary increase, oblique section（4）Diameter it is up-small and down-big, two neighboring straight section（3）Between by oblique section（4）Connection, straight section（3）, oblique section
（4）With top section（5）Constitute the flagpole type tower section of reducing step by step.
4. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 3, it is characterised in that：It is described it is pre- should
Power steel strand wires component includes steel strand wires（6）, steel tower section bottom flange（2）, anchoring lower ends device（10）And tapered end（7）, steel strand wires
Upper end is anchored at steel tower section bottom flange（2）On, anchoring lower ends device（10）End is embedded in pedestal（11）It is interior.
5. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 4, it is characterised in that：Cast-in-place coagulation
Native tower section top section（5）Longitudinal sleeve pipe of steel strand is reserved with inside（8）；Treat that bottom cast-in-place concrete reaches design strength, will be upper
Portion's steel tower section is hung in cast-in-place concrete tower section；By steel strand wires（6）Through longitudinal sleeve pipe（8）It is connected to the bottom method of steel tower section
It is blue（2）On, to steel strand wires（6）Apply prestressing force, then use tapered end（7）Locking.
6. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 3, it is characterised in that：The bottom
Diameter, height, wall thickness and the oblique section that each section of cast-in-place concrete tower section（4）Slope according to tower section stressing conditions combine pylon entirety
Height and live movement requirement determine；In prestress wire anchoring lower ends device（10）End arrangement strengthen arrangement of reinforcement；Oblique section
（4）With straight section（3）Junction have and straight section（3）The knuckle of matching, oblique section（4）Knuckle at prepare stiffener or steel plate
（9）.
7. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 1, it is characterised in that：The reinforcing bar
Concrete pedestal（11）In the straight section with bottom cast-in-place concrete tower section bottom（3）Connecting place arrangement strengthens arrangement of reinforcement；Reinforcing bar is mixed
Solidifying soil matrix seat（11）Section form, size and buried depth etc. determined according to foundation bearing capacity and loading condition.
8. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 7, it is characterised in that：Reinforced concrete
Soil matrix seat（11）Side and top carry out protection of banketing according to field condition.
9. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 2, it is characterised in that：The waterproof
Material（12）Need to have certain ductility and durability.
10. the cast-in-place concrete tower frame for wind generating set of reducing type step by step according to claim 4, it is characterised in that：The steel
Twisted wire（6）Can be made up of sub-thread or multiply compressor wire, certain anti-corrosion measure need to be done；Steel strand wires（6）With reinforced concrete
Soil matrix seat（11）Have a certain degree, its length, diameter, radical and need to be calculated according to loading condition with opening size etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988729.3A CN106523295A (en) | 2016-11-10 | 2016-11-10 | Step-by-step variable diameter cast-in-place concrete wind turbine tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988729.3A CN106523295A (en) | 2016-11-10 | 2016-11-10 | Step-by-step variable diameter cast-in-place concrete wind turbine tower |
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| CN106523295A true CN106523295A (en) | 2017-03-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107201848A (en) * | 2017-03-28 | 2017-09-26 | 上海电气风电集团有限公司 | A kind of concrete tower installs leveling method |
| CN110159491A (en) * | 2019-06-28 | 2019-08-23 | 三一重能有限公司 | A kind of wind-power generating unit tower semi-automatic design method and device |
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