CN101915221B - Method for connecting strip section for blades of wind driven generator - Google Patents
Method for connecting strip section for blades of wind driven generator Download PDFInfo
- Publication number
- CN101915221B CN101915221B CN2010102376251A CN201010237625A CN101915221B CN 101915221 B CN101915221 B CN 101915221B CN 2010102376251 A CN2010102376251 A CN 2010102376251A CN 201010237625 A CN201010237625 A CN 201010237625A CN 101915221 B CN101915221 B CN 101915221B
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- China
- Prior art keywords
- strip
- section bar
- extruding section
- glass fibre
- blade
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- 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
Abstract
The invention relates to blades of a wind driven generator. A main structural material of the blades is strip bamboo and strip glass fiber reinforced plastic pultrusion sections, and the strip bamboo is connected with the strip glass fiber reinforced plastic pultrusion sections by adopting a special beveling mode.
Description
Technical field
The present invention relates to a kind of strip bamboo composite material and the connecting means of strip glass fibre reinforced plastics drawing and extruding section bar, the bamboo composite material that is particularly useful in the blade of wind-driven generator manufacturing is connected with strip section.
Background technique
Blade is the critical component of the effective capturing wind energy of wind power generating set.Under the condition that generator power is determined, how to improve generating efficiency, to obtain larger wind energy, it is the target that wind-power electricity generation is pursued always, and catch the raising of wind energy power and shape, length and the area of blade has close relationship, the size of blade dimensions then mainly depends on the material of making blade.The material of blade is lighter, strength and stiffness are higher, and the ability that blade is resisted load is just stronger, and blade just can be done greatlyr, and its wind energy power of catching is also just stronger.Therefore, the composite material of high-strength light, good endurance becomes the preferred material of present large-scale wind generating blade.
Present wind power generation blade just under arms mostly is composite material blade.These blades basically be by thermoset substrate resin and E-glass fibres such as polyester resin, vinylite and epoxy resin, (glass fibre is a kind of Inorganic Non-metallic Materials of excellent performance to the S-glass fibre, mainly be divided into 5 types according to its composition, E-glass fibre and S-glass fibre are wherein two kinds), the reinforcing material such as carbon fiber, be composited by moulding process such as manual lay or resin injections, to satisfy the usage requirement of different wind fields.
Bamboo wood is a kind of natural environmental-protective shaped material, by the bamboo wood that laminating technology makes, can satisfy the mechanical property requirements of blade main structure material, can effectively reduce the blade cost again, also is convenient to the recycling of material.
But bamboo wood is different from glass fibre reinforced plastic material, on the one hand bamboo wood is not thermosets (thermosets refer to be subject to high temperature action after hardening and irreversible macromolecular material), can not as glass fibre reinforced plastics, first glass fibre be laid in body surface, add again the resin solidification moulding, existing bamboo wood all is strip section on the other hand, and length has certain restriction, every length is approximately 2m～3m, need to find a kind of special connecting means when therefore making blade of wind-driven generator with bamboo wood, bamboo wood and glass fibre reinforced plastics drawing and extruding section bar can be linked together, can satisfy the requirement of intensity aspect again.
Summary of the invention
The present invention is intended to address the above problem, for this reason, the object of the invention is to propose a kind of method that connects bamboo wood and glass fibre reinforced plastics drawing and extruding section bar, the requirement of strength that the connection that utilizes the method to make can be satisfied blade of wind-driven generator makes again processing method become simply easy-to-operat.
According to the present invention, a kind of bamboo wood and glass fibre reinforced plastics drawing and extruding section bar or the connecting means of carbon fiber drawing and extruding section bar are proposed, (laminating technology refers to the sheet material that is soaked with or scribbles resin stacked the strip bamboo composite material that comprises the steps: a) to adopt laminating technology to make given shape, under the heating pressurized conditions, a kind of moulding process of solidifying, comparatively common at glass fibre reinforced plastics and Floor Industry) b) (pultrusion molding process is that glass fibre reinforced plastics is made comparatively common a kind of technique in the industry to adopt pultrusion molding process to make the strip glass fibre reinforced plastics drawing and extruding section bar of given shape or carbon fiber drawing and extruding section bar, the object with certain geometrical shape that adopts this technique to make is called glass fibre reinforced plastics drawing and extruding section bar or carbon fiber drawing and extruding section bar, and wherein strip is its Common Shape) c) with strip bamboo composite material, strip glass fibre reinforced plastics drawing and extruding section bar or carbon fiber drawing and extruding section bar are the main structure material; D) bamboo wood and drawing and extruding section bar wherein an end be processed into angle of chamfer or angle of chamfer is processed at two ends, the ratio of cutting sth. askew was greater than 1: 5; E) again the section bars such as bamboo wood and glass fibre reinforced plastics drawing and extruding section bar are put together in the blade mold assembly to the mode of scarf with scarf; F) pass through at last the vacuum introducing technology with the positions such as gap between the resin injection scarf, be solidified into blade shell or web.Use strip bamboo wood and the section bar of pre-processed shape in the blade production scene, can be easy to operate, fast, do not produce waste material and rubbish, but the common employing of strip material link overlaps (two kinds of materials of the same type overlap and connect) or docks the mode of (referring to enemy's combination of two articles end), join strength is inadequate concerning blade of wind-driven generator, and the Placement of this mitered of the present invention has solved inadequate this key issue of join strength between strip bamboo wood and the drawing and extruding section bar.
Description of drawings
By the description part of carrying out with reference to accompanying drawing hereinafter, can better understand all above-mentioned features, described accompanying drawing is:
Fig. 1 is the sectional view in described blade of wind-driven generator cross section;
Fig. 2 is the whole technological process of connection profile;
Fig. 3 is the strip section of an end angle of chamfer;
Fig. 4 is the strip section of two ends angle of chamfer;
Fig. 5 is the angle of chamfer ratio;
Fig. 6 is two shown in Figure 3 has the strip section of two ends angle of chamfer to combine;
Fig. 7 is the compound mode of A place main structure material in the housing shown in Figure 1.
Embodiment
Connection provided by the invention, be mainly used in the housing parts of blade of wind-driven generator, formed by materials such as bamboo section material and glass fibre reinforced plastics drawing and extruding section bars, referring to accompanying drawing, Figure 1 shows that the sectional view of blade of wind-driven generator, comprise housing 1 and web 2, housing mainly is comprised of main structure materials such as bamboo wood and glass fibre reinforced plastics.
Figure 2 shows that the whole technological process of connection profile, comprise the steps:
S1: material is prepared, the raw material that are used for connecting, adopt bamboo section material and glass fiber reinforced plastic shapes or carbon fiber sectional material etc., common laminating technology is made strip in the existing furniture floor making of the bamboo section material employing industry, common pultrude process is made strip in glass fiber reinforced plastic shapes or the existing glass fibre reinforced plastics industry of carbon fiber sectional material employing, every profile length does not wait from 2m～3m, part section bar only has an end face to be sawn into " ∠ " word shape, two end faces of another part section bar all are sawn into " ∠ " word shape, the requirement inclined-plane is smooth, and scarf is thick long than being not more than 1: 5.
S2: the saw inclined-plane Figure 3 shows that the section bar that an end is cut sth. askew, the scarf of mark 3 for sawing out among the figure.Figure 4 shows that the two ends section bar of cutting sth. askew, the scarf that mark 4 is sawed out for the section bar two ends among the figure.Figure 5 shows that the angle of chamfer of scarf.
S3: mitered, two radicles there is the section bar of scarf, to put together facing to the mode of angle of chamfer with angle of chamfer, the section bar that to only have an end face be scarf is placed on first row or last row of connection.With several row like this section bar of combination piece together side by side and be placed on the mould.Figure 6 shows that two section bars put together by the angle of chamfer amalgamation of end.Fig. 7 is the compound mode of A place main structure material in the housing shown in Figure 1, and it is depicted as several row amalgamation section bar as shown in Figure 5 and puts together side by side.
S4: vacuum infusion, stick with paste technique by vacuum leading-in technique or hand and make resin filling in the space at the positions such as section bar miter, section bar integral body is combined.
S5: through vacuum infusion, and rear curing, all section bars are all linked together, become integral body, thereby form housing.
Claims (1)
1. one kind is used for the bamboo wood of blade of wind-driven generator and the connecting means of glass fibre reinforced plastics drawing and extruding section bar or carbon fiber drawing and extruding section bar, the method is used at bearing structure and is strip bamboo composite material, also has simultaneously in the blade of strip glass fibre reinforced plastics drawing and extruding section bar or strip carbon fiber drawing and extruding section bar; The realization of described connecting means comprises the steps:
A) adopt laminating technology to make the strip bamboo composite material of given shape;
B) adopt pultrusion molding process to make strip glass fibre reinforced plastics drawing and extruding section bar or the strip carbon fiber drawing and extruding section bar of given shape;
C) take strip bamboo composite material, strip glass fibre reinforced plastics drawing and extruding section bar or strip carbon fiber drawing and extruding section bar as the main structure material;
D) strip bamboo composite material and drawing and extruding section bar wherein an end be processed into angle of chamfer or angle of chamfer is processed at two ends, the ratio of cutting sth. askew was greater than 1: 5;
E) again with strip bamboo composite material and strip glass fibre reinforced plastics drawing and extruding section bar, or strip bamboo composite material and strip carbon fiber drawing and extruding section bar are pieced together at blade mold the mode of scarf with scarf and are put together;
F) pass through at last the vacuum introducing technology with the interstitial site between the resin injection scarf, be solidified into blade shell or web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102376251A CN101915221B (en) | 2010-07-22 | 2010-07-22 | Method for connecting strip section for blades of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102376251A CN101915221B (en) | 2010-07-22 | 2010-07-22 | Method for connecting strip section for blades of wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101915221A CN101915221A (en) | 2010-12-15 |
| CN101915221B true CN101915221B (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102376251A Expired - Fee Related CN101915221B (en) | 2010-07-22 | 2010-07-22 | Method for connecting strip section for blades of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101915221B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977108A (en) * | 2004-06-30 | 2007-06-06 | 维斯塔斯风力系统有限公司 | Wind turbine blades made of two separate sections, and method of assembly |
| CN101074647A (en) * | 2007-06-25 | 2007-11-21 | 吴江市方霞企业信息咨询有限公司 | Bamboo-fibre power-driven generator leaf |
| CN201228611Y (en) * | 2008-04-11 | 2009-04-29 | 江苏天奇物流系统工程股份有限公司 | Wind power generator vane body assembled by bamboo lamination material with chamfer |
-
2010
- 2010-07-22 CN CN2010102376251A patent/CN101915221B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977108A (en) * | 2004-06-30 | 2007-06-06 | 维斯塔斯风力系统有限公司 | Wind turbine blades made of two separate sections, and method of assembly |
| CN101074647A (en) * | 2007-06-25 | 2007-11-21 | 吴江市方霞企业信息咨询有限公司 | Bamboo-fibre power-driven generator leaf |
| CN201228611Y (en) * | 2008-04-11 | 2009-04-29 | 江苏天奇物流系统工程股份有限公司 | Wind power generator vane body assembled by bamboo lamination material with chamfer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101915221A (en) | 2010-12-15 |
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Effective date of registration: 20160203 Address after: 215000 No. 1, Huayun Road, Suzhou Industrial Park, Jiangsu Province, China Patentee after: Suzhou Khan Jimi Technology Co., Ltd Address before: 100062 Beijing District of Chongwen City Guorui city apartment block A room 609 Patentee before: Beijing KhanWind Tech Ltd. |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: BEIJING KHANWIND TECH Ltd. Document name: Notification to Pay the Fees |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20190722 |