CN103410677B - Single-pile fixed vertical shaft wind power generator with suction caisson - Google Patents
Single-pile fixed vertical shaft wind power generator with suction caisson Download PDFInfo
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- CN103410677B CN103410677B CN201310395315.6A CN201310395315A CN103410677B CN 103410677 B CN103410677 B CN 103410677B CN 201310395315 A CN201310395315 A CN 201310395315A CN 103410677 B CN103410677 B CN 103410677B
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- suction caisson
- power generator
- wind power
- wind turbine
- caisson
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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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Abstract
The invention relates to a single-pile fixed vertical shaft wind power generator with a suction caisson in the technical field of marine fixed wind power generation, and the wind power generator comprises a vertical axis wind power generator, and a tower drum and the suction caisson which are arranged at the bottom of the machine in sequence and are provided with working platforms. The suction caisson is of an integral barrel-shaped structure which is formed by welding a steel sheet; a drainage short pipe and a flange are arranged on the top of the suction caisson. The single-pile fixed vertical shaft wind power generator with the suction caisson overcomes the defects of the prior art that the foundation installation fee of an offshore wind power generator is high, the installation cycle is long, the internal stress of the foundation of the offshore wind power generator is high, and the occupied area of a wind field is large, and has the advantages that the installation of the foundation of thewind power generator the whole system is quick, the installation cost is low, the internal stress of the foundation of the wind power generator is low, the occupied oceanic area of the wind field is small, and the like.
Description
Technical field
What the present invention relates to is the device of the fixed technical field of wind power generation in a kind of sea, specifically a kind of single pile stationary type vertical axle wind turbine with suction caisson.
Background technique
Current offshore wind farm exploitation is confined to shallow water area and transition region (depth of water is about 0-50 rice), the fixed horizontal shaft wind-power machine of main employing single pile, tripod (or jacket) formula horizontal shaft wind-power machine.Different from traditional land wind turbine, the basic expense (comprising mounting cost) of coastal waters wind turbine occupies sizable proportion in the cost of whole wind turbine system.Existing coastal waters wind turbine all has the deficiency of two aspects: 1) wind turbine basis mounting cost is high, installation period is long; 2) horizontal shaft wind-power machine is to supporting that the stress that basis produces is large, and wind field occupation area is large.Such as need to rent very expensive floating pile driver when installing the single-pile foundation of single pile fixed horizontal shaft wind-power machine, piling process length consuming time; Grouting maintenance also need the time of several days to complete, and run into atrocious weather construction also can be delayed.Horizontal shaft wind-power chance produces decelerating effect to air on the other hand, this forces artificer to carry out layout wind field wind turbine by the spacing being greater than 10 times of wind turbine local width, because an Offshore Winds is often made up of up to a hundred or more typhoon motors, this will certainly greatly increase wind field area, due to the many marine parks of coastal waters shallow water area, river channel gathers, excessive Offshore Winds area will certainly be produced fishery and aquatic products industry and cause adverse influence, also can affect navigation safety significantly.Thus how to reduce the basic mounting cost of coastal waters wind turbine, shorten basic installation period, reduce offshore wind farms and take the problem that oceanic area become people anxious to be resolved.
Through finding that to the retrieval of prior art Chinese patent literature CN103174129A, publication date 2013-06-26 disclose a kind of offshore wind turbine single pipe pile foundation device, comprising: pile tube, changeover portion, circumferential shear connector and grout blanket; Described changeover portion is set in the top of described pile tube, and the bottom of described pile tube can be inserted in sea bed; Described grout blanket is filled between described pile tube and described changeover portion; Described circumferential shear connector to be fixed on described pile tube outer wall and/or described changeover portion inwall along described pile tube axial direction Spaced and to be embedded in described grout blanket.Owing to being provided with circumferential shear connector on the outer wall and changeover portion inwall of pile tube, this circumferential shear connector is embedded in grout blanket, thus the join strength of pile tube and changeover portion can be improved, the vertical force passed over by changeover portion, horizontal bending moment and torsional moment effectively pass to pile tube and pass to sea bed again, and can lower the manufacture cost of offshore wind power generation basic single pipe pile foundation device.But the wind turbine of this existing system basis mounting cost is very high, installation period is still very long, still needs to rent very expensive floating pile driver when installing single-pile foundation, piling process length consuming time, and noise pollution is high; Grouting maintenance also needs the time of several days to complete, and the prior art is also only limitted to adopt when the depth of water is less than 20 meters, and the separate unit wind turbine installed is the maximum electric power that only can send 3.5 megawatts generally.
Chinese patent literature CN102433890, publication date 2012-05-02, disclose a kind of floating type offshore wind turbine base and navigation system thereof, described navigation system comprises at least three catenaries, one end of described at least three catenaries is connected respectively to blower foundation, the other end of described at least three catenaries is connected respectively to sea bed, to make blower foundation stress balance, wherein, described navigation system also comprises tensioned thread, and the direction of described tensioned thread from the bottom of blower foundation along the longitudinal center's line parallel with blower foundation extends to sea bed to be connected to sea bed.Floating type offshore wind turbine base with described positioning system structure is simple and reliable, cost is low, effectively can reduce the complete machine motion amplitude of floating marine formula blower fan.But what this technology adopted is horizontal shaft wind-power machine, horizontal shaft wind-power chance produces decelerating effect to air, this forces artificer to carry out layout wind field wind turbine by the spacing being greater than 10 times of wind turbine local width, because an Offshore Winds is often made up of up to a hundred or more typhoon motors, this will certainly greatly increase wind field area, excessive Offshore Winds area will certainly be produced fishery and aquatic products industry and cause adverse influence, also can affect navigation safety significantly.
Summary of the invention
The present invention is directed to prior art above shortcomings, propose a kind of single pile stationary type vertical axle wind turbine with suction caisson, overcome that prior art coastal waters wind turbine basis mounting cost is high, installation period is long; The shortcoming that coastal waters wind turbine basis internal stress is high and wind field occupation area is large, the wind turbine basis installation with whole system is convenient, installation cost is low, the basic internal stress of wind turbine is low and wind field takies the advantages such as oceanic area is little.
The present invention is achieved by the following technical solutions, the present invention includes: vertical-shaft wind turbine and the tower cylinder with working platform be set in turn in bottom it and suction caisson.
Described suction caisson is by the integral type barrel-like structure of Plate Welding, and the top of this suction caisson is provided with drain stub and flange.
Described tower cylinder is hollow-core construction, it is welded with the working platform be made up of checker plate.
Described perpendicular axis type blower fan comprises: blade, connect the cabin of pole, runner, rotating shaft and built-in generator and brake system, and wherein: the top of tower cylinder is connected with cabin floor, blade is connected on runner; Runner is by vane drive, and rotating shaft is driven by runner, and generator is driven by rotating shaft.
Technique effect
The present invention compared with prior art adopts suction caisson as the seafloor foundation of single pile stationary type vertical axle wind turbine, and suction caisson is simple for structure, easy to make, is at sea arranged in several hours and just can completes, and installation cost is very low; In addition, the technology of the present invention effect also comprises: 1) make use of vertical shaft fan and can be positioned to tightr in offshore wind farms, also namely more multiple stage vertical-shaft wind turbine can be arranged in given space, this is because vertical shaft fan is very little to the decelerating effect of air.2) vertical-shaft wind turbine is firm in structure, and work is quiet, and the stress caused brace foundation structure is very little, and they can be designed plane off sea is relatively near with a bit, so that maintenance.3) research of California Inst Tech USA shows under the prerequisite of conscientious carefully design, with the electricity generation ability of the wind field be made up of vertical-shaft wind turbine of yardstick by 10 times of electricity generation abilities to the wind field be made up of horizontal shaft wind-power machine of same yardstick.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention;
In figure: connect pole 1, runner 2, rotating shaft 3, blade 4, generator 5, brake system 6, tower cylinder 7, Steel Pipe Railing 8, working platform 9, flange 10, suction caisson 11, sea bed 12.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, the present embodiment comprises: vertical-shaft wind turbine and the tower cylinder 7 with working platform 9 be set in turn in bottom it and suction caisson 11.
Described suction caisson 11 is by the integral type barrel-like structure of Plate Welding, and the top of this suction caisson 11 is provided with drain stub and flange 10.
Described tower cylinder 7 is hollow-core construction, it is welded with the working platform 9 be made up of checker plate.
The surrounding of described working platform 9 is welded with Steel Pipe Railing 8, with the safety of support personnel in operation and when keeping in repair.
Described perpendicular axis type blower fan comprises: blade 4, connect the cabin of pole 1, runner 2, rotating shaft 3 and built-in generator 5 and brake system 6, and wherein: the top of tower cylinder is connected with cabin floor, blade 4 is connected on runner 2; Runner 2 is driven by blade 4, and rotating shaft 3 is driven by runner 2, and generator 5 is driven by rotating shaft.
Be connected with the top of tower cylinder 7 bottom the cabin body of described vertical-shaft wind turbine.
Described generator coil cutting magnetic line generates induced current, and the electric energy sent is transported to by submarine cable and littoral uses electric unit.
The quantity of described blade 4 is 6, and fibreglass reinforced plastic is made.
This device carries out in-site installation layout in the following manner:
When the first step, installation, suction caisson and platform mechanism are connected, and first hang by a hoist in seawater by them, and the starting stage relies on the surrounding skirtboard of the effect suction caisson of gravity can insert the certain degree of depth of sea bed 12;
Second step, interim draining pump and discharge pipe line is utilized to be discharged by the seawater of suction caisson inside, at this moment internal pressure is caused sharply to reduce because suction caisson inside forms space, but due to the not change of suction caisson external water pressure power, this just creates very large pressure difference inside and outside the top board of suction caisson, and (direction is downward, namely suction is created), thus the surrounding skirtboard ordering about suction caisson continues deeper to insert sea bed;
3rd step, when the seawater emptying of draining pump by suction caisson inside, suction caisson top has been embedded in sea bed, then start fixing operation, and finally forms platform mechanism and the wind turbine that seafloor foundation supports top.
In the present embodiment, the height of blade 4 is 12 meters, and width is 2.5 meters, and the power of generator is 2.5MW, and runner 2 apart from sea level is 20 meters, and the drinking water of whole wind turbine system is 16 meters.
Claims (1)
1. the installation method of the single pile stationary type vertical axle wind turbine with suction caisson, it is characterized in that, described single pile stationary type vertical axle wind turbine comprises: vertical-shaft wind turbine and the tower cylinder with working platform be set in turn in bottom it and suction caisson;
Described suction caisson is by the integral type barrel-like structure of Plate Welding, and the top of this suction caisson is provided with drain stub and flange;
Described tower cylinder is hollow-core construction, it is welded with the working platform be made up of checker plate;
Described perpendicular axis type blower fan comprises: blade, connect the cabin of pole, runner, rotating shaft and built-in generator and brake system, and wherein: the top of tower cylinder is connected with cabin floor, blade is connected on runner; Runner is by vane drive, and rotating shaft is driven by runner, and generator is driven by rotating shaft;
Be connected with the top of tower cylinder bottom the cabin body of described vertical-shaft wind turbine;
Described generator coil cutting magnetic line generates induced current, and the electric energy sent is transported to littoral use electric unit by submarine cable;
The quantity of described blade is 4, and fibreglass reinforced plastic is made;
Described installation method, comprises the following steps:
When the first step, installation, suction caisson and platform mechanism are connected, and first hang by a hoist in seawater by them, and the starting stage relies on the surrounding skirtboard of the effect suction caisson of gravity to insert sea bed;
Second step, utilize interim draining pump and discharge pipe line to be discharged by the seawater of suction caisson inside, such that the top board of suction caisson is inside and outside produces pressure difference and the surrounding skirtboard ordering about suction caisson continues to insert sea bed;
3rd step, when the seawater emptying of draining pump by suction caisson inside, suction caisson top has been embedded in sea bed, then start fixing operation, and finally forms platform mechanism and the wind turbine that seafloor foundation supports top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395315.6A CN103410677B (en) | 2013-09-03 | 2013-09-03 | Single-pile fixed vertical shaft wind power generator with suction caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395315.6A CN103410677B (en) | 2013-09-03 | 2013-09-03 | Single-pile fixed vertical shaft wind power generator with suction caisson |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410677A CN103410677A (en) | 2013-11-27 |
| CN103410677B true CN103410677B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310395315.6A Expired - Fee Related CN103410677B (en) | 2013-09-03 | 2013-09-03 | Single-pile fixed vertical shaft wind power generator with suction caisson |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677995B (en) * | 2018-07-20 | 2024-02-27 | 上海交通大学 | Offshore wind turbine single pile foundation with suction caisson and tensioning mooring system |
| CN112343073A (en) * | 2019-08-06 | 2021-02-09 | 天津市海王星海上工程技术股份有限公司 | Offshore wind power foundation installation system and method based on application of pump skid block |
| CN110953126A (en) * | 2019-10-31 | 2020-04-03 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore power generation device and offshore assembly mechanism |
| CN115450820A (en) * | 2022-10-13 | 2022-12-09 | 上海能源科技发展有限公司 | Offshore wind power pile foundation anti-scouring device and method considering wake effect |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0119969D0 (en) * | 2001-08-16 | 2001-10-10 | Ocean Technologies Ltd | Floating offshore windtower |
| US20070243063A1 (en) * | 2006-03-17 | 2007-10-18 | Schellstede Herman J | Offshore wind turbine structures and methods therefor |
| CN101705920A (en) * | 2009-11-16 | 2010-05-12 | 浙江大学 | Self-balancing suction penetration bucket foundation of offshore wind power generating set and construction method thereof |
| KR101355132B1 (en) * | 2012-02-16 | 2014-01-27 | 이지현 | Suction Bucket Foundation |
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| CN103410677A (en) | 2013-11-27 |
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Granted publication date: 20141231 Termination date: 20170903 |