CN103419380B - The pre-formed technique of MW class wind turbine blade blade root - Google Patents
The pre-formed technique of MW class wind turbine blade blade root Download PDFInfo
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- CN103419380B CN103419380B CN201310398079.3A CN201310398079A CN103419380B CN 103419380 B CN103419380 B CN 103419380B CN 201310398079 A CN201310398079 A CN 201310398079A CN 103419380 B CN103419380 B CN 103419380B
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- 238000007711 solidification Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 11
- 239000004593 Epoxy Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 125000003700 epoxy group Chemical group 0.000 claims description 4
- 239000003822 epoxy resins Substances 0.000 claims description 4
- 239000010410 layers Substances 0.000 claims description 4
- 229920000647 polyepoxides Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
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Abstract
Description
Technical field
The present invention relates to the manufacturing technology field of wind power generation plant blade, be specifically related to the pre-formed technique of a kind of MW class wind turbine blade blade root.
Background technology
Along with exhausting in a large number of non-renewable energy resources, wind-power electricity generation more and more enjoys concern and the attention of countries in the world.Wind-power electricity generation utilizes wind-force to drive air vane to rotate, then the speed rotated promoted through booster engine, and TRT is generated electricity.Wind electricity blade is as the core component of unit, and blade technology is one of core technology of wind generator system, and its main holding capacity is blade root, and blade root has material impact to leaf quality, and its performance also directly affects the service life of blade.
Along with the development of wind-powered electricity generation industry, wind electricity blade also maximizes increasingly, and the blade root for wind electricity blade also becomes large along with blade and thickens, and makes blade root not easily pour into or blade root turns white after blade root thickens, it directly causes blade root quality to reduce, and affects blade service life.
Summary of the invention
For above-mentioned weak point of the prior art, the present invention aims to provide the pre-formed technique of a kind of MW class wind turbine blade blade root, greatly reduce the cycle of resin perfusion in blade forming, reduce blade root in blade forming process and occur the risk of mass defect, improve the quality of wind turbine blade.
In order to achieve the above object, technical scheme of the present invention: the pre-formed technique of a kind of MW class wind turbine blade blade root, described processing step is: be first laid on blade root prefabricated-member mould by blade root prefabricated component glass-fiber-fabric, and then priming by vacuum, be heating and curing shaping, finally the blade root prefabricated component after curing molding is called in main mould one-body molded.
Wherein, described blade root prefabricated-member mould is consistent with wind turbine blade profile, and specification is consistent.
Particularly, the step of described priming by vacuum is, glass-fiber-fabric is laid porous release film, release cloth, flow-guiding screen, omega pipe, sealing joint strip successively, lays build pipe at the edge of flow-guiding screen, vacuum bag film is laid by the superiors, finally carries out vacuumizing, resin perfusion.
Further, described sealing joint strip is butyl sealant; And it is two, wherein Article 1 is apart from prefabricated-member mould die parting line 200mm, and Article 2 is apart from Article 10 ~ 10mm.
Further, building pipe described in is vacuum spiral coil and steel wire spiral pipe.
Further, described resin mixes gained in 100:26 ~ 30 in proportion by epoxy resin and epoxy curing agent.
Further, described glass-fiber-fabric is three axial glass-fiber-fabrics, and every layer of axis wrong 10mm when it is laid.
Finally, after solidification by porous release film, flow-guiding screen, omega pipe, sealing joint strip, build pipe, vacuum bag film all removes.
Beneficial effect of the present invention: the process Leaf blade root of blade forming mainly adopts the technique of priming by vacuum heat cure to carry out the formation of blade root, this technique can reduce greatly blade root perfusion thoroughly or blade root the mass defect such as to turn white, improve the reliability of blade, heat cure simultaneously can accelerate resin solidification, improves wind turbine blade production efficiency.
Detailed description of the invention
The present invention is further described below in conjunction with specific embodiment.
The pre-formed technique of a kind of MW class wind turbine blade blade root, described processing step is: be first laid on blade root prefabricated-member mould by blade root prefabricated component glass-fiber-fabric, and then priming by vacuum, be heating and curing shaping, finally the blade root prefabricated component after curing molding is called in main mould one-body molded.The main formation adopting the technique of priming by vacuum heat cure to carry out blade root in the process of blade forming of the present invention, this technique can reduce greatly blade root perfusion thoroughly or blade root the mass defect such as to turn white, improve the reliability of blade, heat cure simultaneously can accelerate resin solidification, improves wind turbine blade production efficiency.
Wherein, described prefabricated-member mould is consistent with wind turbine blade profile, and specification is consistent.Processing according to the profile of wind turbine blade of prefabricated-member mould, this prefabricated-member mould can be processed into the specification consistent with wind turbine blade according to concrete production technology.
Particularly, the step of described priming by vacuum is, glass-fiber-fabric is laid porous release film, release cloth, flow-guiding screen, omega pipe, sealing joint strip successively, lays build pipe at the edge of flow-guiding screen, vacuum bag film is laid by the superiors, finally carries out vacuumizing, resin perfusion.Afterwards, described in be heating and curing and carry out heating Post RDBMS for laying heating blanket on surface, and solidification temperature is 70 degree.After cured by heating blanket, vacuum bag film, flow-guiding screen, build the auxiliary material of vacuum laid before pipe, porous release film, release cloth, omega pipe, sealing joint strip etc. and remove, finally the blade root prefabricated component after curing molding is called in main mould one-body molded.
Further, described sealing joint strip is butyl sealant; And it is two, wherein Article 1 is apart from prefabricated-member mould die parting line 200mm, and Article 2 is apart from Article 1 5mm.Sealing joint strip mainly slows down resin (axis) speed of flowing forward, thus increases resin (tangential) speed of permeating downwards, solves blade root perfusion thoroughly or the blade root problem of turning white.
Vacuum bag film is double-deck laying, lays one deck V160 flow-guiding screen, bleed and set up vacuum system between ground floor and the second layer; Vacuum system reaches 50mbr, and pressurize 10 minutes is lower than 50mbr; Epoxy resin and epoxy curing agent open gum-injecting port after mixing according to a certain percentage, pour into.After having poured into, open mold heating system heating blanket and temperature to 70 DEG C is cured.Intensification per hour 10 DEG C, to 70 DEG C, insulation is no less than 4 hours (being as the criterion with housing solidification tack-free easy removal auxiliary material) or measure its hardness blade root with Shore durometer, can carry out the demoulding during hardness >=60.
Finally, after solidification by porous release film, flow-guiding screen, omega pipe, sealing joint strip, build the auxiliary materials of vacuum such as pipe, vacuum bag film and all remove, complete stand-by.
In addition, described in build pipe for vacuum spiral coil and steel wire spiral pipe, vacuum spiral coil and steel wire spiral pipe make intrusion pipe can ensure that rate of flooding mate with flow-guiding screen, and resin permeates even.
In order to reach the mechanics effect resin of the best by epoxy resin and epoxy curing agent 100:28 mixing gained in proportion.
Transmit in order to ensure glass-fiber-fabric uniform force, glass-fiber-fabric is three axial glass-fiber-fabrics, and every layer of axis wrong 10mm when it is laid.
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, detailed description of the invention and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (6)
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| CN201310398079.3A CN103419380B (en) | 2013-09-04 | 2013-09-04 | The pre-formed technique of MW class wind turbine blade blade root |
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| CN201310398079.3A CN103419380B (en) | 2013-09-04 | 2013-09-04 | The pre-formed technique of MW class wind turbine blade blade root |
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| CN103419380B true CN103419380B (en) | 2016-01-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921457B (en) * | 2014-04-28 | 2016-03-30 | 连云港中复连众复合材料集团有限公司 | A kind of unidirectional sheet material adopting pultrude process to manufacture manufactures the method for fan blade main beam or auxiliary beam |
| CN105215042B (en) * | 2015-09-23 | 2019-02-05 | 李福荣 | The method for treatment of waste material that generates and product application method is made in wind electricity blade production |
| CN107856330B (en) * | 2017-12-06 | 2020-04-17 | 江苏金风科技有限公司 | Blade root prefabricating mold, blade root prefabricating method, blade manufacturing method and blade |
| CN107972290B (en) * | 2017-12-25 | 2020-04-21 | 江苏金风科技有限公司 | Blade manufacturing method and blade |
| CN109514884A (en) * | 2018-10-10 | 2019-03-26 | 迪皮埃复材构件（太仓）有限公司 | A kind of improvement process of blade vacuum perfusion |
| CN109441712B (en) * | 2018-10-29 | 2020-04-10 | 株洲时代新材料科技股份有限公司 | Control method for wrinkles of end faces of blade roots of pre-buried wind power blades |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462360A (en) * | 2007-12-18 | 2009-06-24 | 上海玻璃钢研究院 | High-power wind mill blade root disposal vacuum auxiliary pouring and molding method |
| CN101749194A (en) * | 2009-12-11 | 2010-06-23 | 重庆通用工业(集团)有限责任公司 | Wind turbine blade for large-scale wind generating set, and molding method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7351040B2 (en) * | 2006-01-09 | 2008-04-01 | General Electric Company | Methods of making wind turbine rotor blades |
| WO2011156947A1 (en) * | 2010-06-13 | 2011-12-22 | 连云港中复连众复合材料集团有限公司 | Method for manufacturing blade root of megavatt level wind generator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101462360A (en) * | 2007-12-18 | 2009-06-24 | 上海玻璃钢研究院 | High-power wind mill blade root disposal vacuum auxiliary pouring and molding method |
| CN101749194A (en) * | 2009-12-11 | 2010-06-23 | 重庆通用工业(集团)有限责任公司 | Wind turbine blade for large-scale wind generating set, and molding method thereof |
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Effective date of registration: 20141021 Address after: 131300 No. 2, Xing Gong Road, Da'an City, Jilin, Baicheng Applicant after: Trans Cheng Cheng Fei (Da an) wind power equipment Co., Ltd. Address before: 401336 Chongqing south bank area machine circuit number 18 Applicant before: Chongqing General Industry (Group) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CQGI GROUP CHENGFEI (DA AN) WIND POWER EQUIPMENT CO., LTD. TO: JILIN CHONGTONG CHENGFEI NEW MATERIAL CO., LTD. |
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| CB02 | Change of applicant information |
Address after: 131300 No. 2, Xing Gong Road, Da'an City, Jilin, Baicheng Applicant after: Jilin Chong Tongchengfei new material joint-stock company Address before: 131300 No. 2, Xing Gong Road, Da'an City, Jilin, Baicheng Applicant before: Trans Cheng Cheng Fei (Da an) wind power equipment Co., Ltd. |
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| C53 | Correction of patent for invention or patent application | ||
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model |