CN103233865B - Pre-embedding technology for lightning-protection conducting wire of wind-power blade - Google Patents
Pre-embedding technology for lightning-protection conducting wire of wind-power blade Download PDFInfo
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- CN103233865B CN103233865B CN201310104643.6A CN201310104643A CN103233865B CN 103233865 B CN103233865 B CN 103233865B CN 201310104643 A CN201310104643 A CN 201310104643A CN 103233865 B CN103233865 B CN 103233865B
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- lightning conductor
- web
- blade
- lightning
- copper billet
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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
- 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 discloses a pre-embedding technology for lightning-protection conducting wire of a wind-power blade. The pre-embedding technology adopts the pre-embedding and the integral curing mode to pre-cast the lightning conductor in a web, and the technology specifically comprises the following steps: 1), laying the lightning conductor and web forming vacuum materials on one side of the web close to the blade lightning arrester, and reserving certain length conductors at the two ends of the lightning conductor, reserving mounting wiring metal block on the lightning conductor in the position where the blade lighting arrester is connected; 2) laying glass fabric on the lightning conductor on the web and sealing the two ends of the lightning conductor; 3) conducting integral curing to the lightning conductor and the web by adopting the vacuum infusion method. According to the technology provided by the invention, the lightning conductor is pre-embedded in the web and is integrally cured with the web, the safety of the blade lightning protection system is greatly improved, hidden problems of the blade caused by the separation of the lightning conductor and the web are eliminated completely, and manufacturing time of the blade is reduced as well.
Description
Technical field
The present invention relates to a kind of making method of wind electricity blade web, be specifically related to the pre-buried technique of wind electricity blade lightning conductor.
Background technique
Wind electricity blade is as the core component of unit, and blade technology is one of core technology of wind-power generating system, and traditional wind electricity blade lightning conductor is with after glass-fiber-fabric impregnated with resin, is fixed on web.Due to long natural etch, lightning conductor and web will be caused to divide, become one of factor affecting blade opposing physical environment.
Summary of the invention
For above-mentioned deficiency of the prior art, the present invention aims to provide the pre-buried technique of a kind of wind electricity blade lightning conductor, improves blade against natural environmental performance, thoroughly eliminates the danger because lightning conductor brings to blade, meanwhile, decreases the blade production time.
In order to achieve the above object, technological scheme of the present invention: the pre-buried technique of a kind of wind electricity blade lightning conductor, this technique adopts mode that is pre-buried and one solidification to be embedded on web by lightning conductor, and concrete steps are as follows,
1), on the coxostermum upper berth near blade arrester establish lightning conductor and web molding vacuum material, and reserve conductor length at lightning conductor two ends, lightning conductor connects the reserved installation in the position wiring metal block of blade arrester;
2) glass-fiber-fabric laid by the lightning conductor, on web, and lightning conductor two ends are sealed;
3), adopt vacuum infusion method by lightning conductor and web one-step solidification moulding.
Further, the installation of described wiring metal block comprises,
1.1), the protective layer of lightning conductor removes in exposed copper cable, and install metal copper billet on described web by the position that connects blade arrester on described lightning conductor;
1.2), adopt the increasing pad of A4 shape and bolt to be pressed on metal copper billet by aforementioned exposed copper cable, and carry out transition at the metal copper billet surrounding laying foam angle of wedge;
1.3), lay covering copper billet, and lay two-layer glass-fiber-fabric on covering copper billet and the foam angle of wedge.
Preferably, described metal copper billet is the copper billet of a 80mm × 60mm × 10mm.
The described foam angle of wedge is consistent with web sandwich material, and its thickness is the thickness of metal copper billet, and the ratio of the foam angle of wedge is 1:5.
The described protective layer length removed is 50mm.
Described glass-fiber-fabric is a wide 150mm, and surface density is 808g/m
2biaxially glass-fiber-fabric.
Beneficial effect of the present invention: lightning conductor to be embedded in web and one-body molded with web, substantially increase the Security of blade lightning-protection system, completely eliminate because being separated between lightning conductor with web causes many hidden danger of bringing to blade, decrease the blade production time simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is fabrication processing block diagram of the present invention.
Embodiment
The present invention is further described below in conjunction with specific embodiment and accompanying drawing.
The pre-buried technique of wind electricity blade lightning conductor as shown in Figure 1, its technique adopts mode that is pre-buried and one solidification to be embedded on web by lightning conductor, and concrete steps are as follows,
1), on the coxostermum upper berth near blade arrester establish lightning conductor and web molding vacuum material, and reserve conductor length at lightning conductor two ends, lightning conductor connects the reserved installation in the position wiring metal block of blade arrester;
2) glass-fiber-fabric laid by the lightning conductor, on web, and lightning conductor two ends are sealed;
3), adopt vacuum infusion method by lightning conductor and web one-step solidification moulding.
This technique carries out lightning conductor laying after existing production technology carries out web laying, and web molding vacuum material is laid, and is existing process engineering, does not repeat them here for web laying and web molding vacuum material.For the laying of lightning conductor, it should be noted that 1, conductor length need be reserved in lightning conductor two ends, and 2, lightning conductor connects the reserved installation in the position wiring metal block of blade arrester, 3, before perfusion, need lightning conductor two ends to seal.
Installation steps for described wiring metal block comprise,
1.1), the protective layer of lightning conductor removes in exposed copper cable, and install metal copper billet on described web by the position that connects blade arrester on described lightning conductor;
1.2), adopt the increasing pad of A4 shape and bolt to be pressed on metal copper billet by aforementioned exposed copper cable, and carry out transition at the metal copper billet surrounding laying foam angle of wedge;
1.3), lay covering copper billet, and lay two-layer glass-fiber-fabric on covering copper billet and the foam angle of wedge.
Here, selected metal copper billet is the copper billet of a 80mm × 60mm × 10mm; And the protective layer of the position that lightning conductor is connected with blade arrester is removed, generally this length is about 50mm, finally adopts the increasing pad of A4 shape and the bolt of M12 × 20 to be pressed on metal copper billet by exposed copper cable.
And the described foam angle of wedge adopts the material consistent with web sandwich, its thickness is the thickness of metal copper billet, the wedge degree ratio of the preferred foams angle of wedge is 1:5, that is to say along metal copper billet to surrounding to tilt to lay foam, make the later stage vacuumize perfusion time, non-essential displacement or distortion can not be produced to arranging of lightning conductor, improve the formed precision of product when vacuumizing perfusion, that is to say and improve once-through yield rate.
Glass-fiber-fabric selected by this example is a wide 150mm, and surface density is 808g/m
2biaxially glass-fiber-fabric, carry out cutting glass-fiber-fabric according to actual requirement size, with can be completely capped by the lightning conductor on web, make final product structure intensity higher.
For vacuumizing perfusion, carrying out layout flow-guiding screen by existing production technology, honeycomb duct, gum-injecting port equal vacuum pour into auxiliary material, the two ends of wire being sealed simultaneously, then vacuum bag film is laid, carry out vacuumizing operation, reach after technological requirement until pressure, carry out vacuumizing perfusion.
And solidification and reprocessing are, open heating equipment, be cured by curing process time requirement of the prior art, the vacuum bag film of web surface, flow-guiding screen, honeycomb duct etc. are removed after solidification, the lightning conductor namely completing whole wind electricity blade after finishing is pre-buried.
Above the technological 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 mode of execution, 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, embodiment and application area all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. the pre-buried technique of wind electricity blade lightning conductor, is characterized in that, this technique adopts mode that is pre-buried and one solidification to be embedded on web by lightning conductor, and concrete steps are as follows,
1), on the coxostermum upper berth near blade arrester establish lightning conductor and web molding vacuum material, and reserve conductor length at lightning conductor two ends, lightning conductor connects the reserved installation in the position wiring metal block of blade arrester;
2) glass-fiber-fabric laid by the lightning conductor, on web, and lightning conductor two ends are sealed;
3), adopt vacuum infusion method by lightning conductor and web one-step solidification moulding.
2. the pre-buried technique of a kind of wind electricity blade lightning conductor according to claim 1, is characterized in that: the installation of described wiring metal block comprises,
1.1), the protective layer of lightning conductor removes in exposed copper cable, and install metal copper billet on described web by the position that connects blade arrester on described lightning conductor;
1.2), adopt the increasing pad of A4 shape and bolt to be pressed on metal copper billet by aforementioned exposed copper cable, and carry out transition at the metal copper billet surrounding laying foam angle of wedge;
1.3), lay covering copper billet, and lay two-layer glass-fiber-fabric on covering copper billet and the foam angle of wedge.
3. the pre-buried technique of a kind of wind electricity blade lightning conductor according to claim 2, is characterized in that: described metal copper billet is the copper billet of a 80mm × 60mm × 10mm.
4. the pre-buried technique of a kind of wind electricity blade lightning conductor according to claim 2, it is characterized in that: the described foam angle of wedge is consistent with web sandwich material, and its thickness is the thickness of metal copper billet, the ratio of foam angle of wedge wedge degree is 1:5.
5. the pre-buried technique of a kind of wind electricity blade lightning conductor according to claim 2, is characterized in that: described in the protective layer length removed be 50mm.
6. the pre-buried technique of a kind of wind electricity blade lightning conductor according to claim 1, is characterized in that: described glass-fiber-fabric is a wide 150mm, and surface density is 808g/m
2biaxially glass-fiber-fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310104643.6A CN103233865B (en) | 2013-03-28 | 2013-03-28 | Pre-embedding technology for lightning-protection conducting wire of wind-power blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310104643.6A CN103233865B (en) | 2013-03-28 | 2013-03-28 | Pre-embedding technology for lightning-protection conducting wire of wind-power blade |
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| Publication Number | Publication Date |
|---|---|
| CN103233865A CN103233865A (en) | 2013-08-07 |
| CN103233865B true CN103233865B (en) | 2015-04-22 |
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| CN201310104643.6A Active CN103233865B (en) | 2013-03-28 | 2013-03-28 | Pre-embedding technology for lightning-protection conducting wire of wind-power blade |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107487004B (en) * | 2017-08-14 | 2023-03-14 | 白银中科宇能科技有限公司 | Integrated pouring forming process for wind power blade tips |
| CN109822946B (en) * | 2018-12-29 | 2021-02-05 | 中材科技（酒泉）风电叶片有限公司 | Wind power blade web perfusion optimization process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2003281980B2 (en) * | 2003-11-20 | 2008-09-11 | Vestas Wind Systems A/S | Wind turbine lightning connection means method and use hereof |
| DE102006023642A1 (en) * | 2006-05-18 | 2007-11-22 | Daubner & Stommel Gbr Bau-Werk-Planung | Wind turbine and rotor blade for a wind turbine |
| US7468505B2 (en) * | 2006-07-21 | 2008-12-23 | General Electric Company | Fiber optic current sensor system and method for detecting lightning |
| ES2353320B1 (en) * | 2008-02-08 | 2012-01-25 | Gamesa Innovation & Technology S.L. | AIRBRUSH SHOVEL WITH A LIGHT BEAM ON YOUR POINT. |
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Effective date of registration: 20170717 Address after: 226000 north side of the Yellow River Road, New District, Rudong Economic Development Zone, Nantong, Jiangsu Co-patentee after: Chongqing General Industry (Group) Co., Ltd. Patentee after: Tongcheng Feifeng heavy electrical equipment Jiangsu Co. Ltd. Address before: 401336 Chongqing south bank area machine circuit number 18 Patentee before: Chongqing General Industry (Group) Co., Ltd. |