CN104416920A - Method for infusing wind turbine blade girder - Google Patents
Method for infusing wind turbine blade girder Download PDFInfo
- Publication number
- CN104416920A CN104416920A CN201310382978.4A CN201310382978A CN104416920A CN 104416920 A CN104416920 A CN 104416920A CN 201310382978 A CN201310382978 A CN 201310382978A CN 104416920 A CN104416920 A CN 104416920A
- Authority
- CN
- China
- Prior art keywords
- girder
- infusing
- cloth
- resin
- lay
- Prior art date
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
- B29L2031/085—Wind turbine blades
Abstract
The invention discloses a method for infusing a wind turbine blade girder, and the method comprises the following steps: paving a girder layer on a flow guide mesh; paving omega-shaped flow guide tubes on the flow guide mesh; paving a breathable film above the girder layer, wherein the center of the breathable film is provided with extraction openings above which an air extracting device is connected, and the breathable film is further provided with a viewing window; arranging a vacuum apparatus and performing vacuumizing infusing; infusing the vacuum apparatus with resin and extracting air by the air extracting device; heating and pre-curing the resin; closing the vacuum apparatus after curing the resin, de-molding and molding the girder. According to the infusing method, an infusing manner from bottom to top is used so that the infusing is more complete and uniform; the air is extracted by the breathable film, so that the resin can be fully infused into the whole girder layer to improve the product quality; the infusing process is in a controllable status.
Description
Technical field
The present invention relates to a kind of wind power generation blade girder method for filling.
Background technology
Make in forming process in current blade girder, girder perfusion generally lays flow-guiding screen on girder layer of cloth surface, is adopted from middle toward both sides perfusion by flow-guiding screen, or from side toward the mode that opposite side pours into.Also there is employing reperfusion mode from bottom to top, and adopt spiral jacket to bleed.
Mainly there is following shortcoming in prior art: adopts the mode of pouring into from top to bottom at girder layer of cloth surface paving flow-guiding screen, resin flows situation cannot be observed in filling process, there is girder lower envelope risk, serious may cause product rejection, and does not lay flow-guiding screen region and there is blushing; Adopt the reperfusion mode from bottom to top that spiral bag is bled, its rate of air sucked in required Shortcomings, product may be caused finally to fill with discontented, and which also cannot observe resin flows situation, thus uncontrollable perfusion process.
Summary of the invention
The technical problem to be solved in the present invention is the defect that is not enough, uncontrollable perfusion process of bleeding that the reperfusion mode from bottom to top in order to overcome prior art exists, and provides a kind of wind power generation blade girder method for filling.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of wind power generation blade girder method for filling, its feature is, it comprises the following steps:
Step 1: lay flow-guiding screen at girder die surface;
Step 2: lay girder layer of cloth on described flow-guiding screen;
Step 3: lay Ω shape mozzle on described flow-guiding screen;
Step 4: lay ventilated membrane above described girder layer of cloth, the middle part of described ventilated membrane is provided with bleeding point, connects air extractor above described bleeding point, and described ventilated membrane is also provided with observation window;
Step 5: lay vacuum plant above described girder mould, described flow-guiding screen, described Ω shape mozzle, described girder layer of cloth and described ventilated membrane, and vacuumize;
Step 6: pour into resin by described Ω shape mozzle, described air extractor is bled, when observing girder layer of cloth surface described in resin impregnated by described observation window, stops perfusion;
Step 7: heating precuring;
Step 8: after resin solidification, closes described vacuum plant, stripping forming.
Preferably, in described step 4, described bleeding point is positioned at above the middle part of the cross section of described girder layer of cloth.
Preferably, in described step 4, be provided with the extension extending to described flow-guiding screen in the middle part of described ventilated membrane, described bleeding point is positioned on described extension.
Positive progressive effect of the present invention is: method for filling of the present invention, adopts reperfusion mode from bottom to top, make perfusion more fully evenly, there is better perfusion effect; Bled by ventilated membrane, there is sufficient effect of bleeding, make resin can be full of whole girder layer of cloth, improve product quality; By observation window, perfusion process can be controlled, thus make filling process be in the state that can control.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the ventilated membrane of the embodiment of the present invention 1.
Fig. 3 is the schematic diagram of the embodiment of the present invention 2.
Fig. 4 is the structural representation of the ventilated membrane of the embodiment of the present invention 2.
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
Embodiment 1
As depicted in figs. 1 and 2, a kind of wind power generation blade girder method for filling, it comprises the following steps:
Step 1: lay flow-guiding screen 12 on girder mould 11 surface;
Step 2: lay girder layer of cloth 13 on flow-guiding screen 12;
Step 3: lay Ω shape mozzle 15 on flow-guiding screen 12;
Step 4: lay ventilated membrane 14 above girder layer of cloth 13, the middle part of ventilated membrane 14 is provided with bleeding point 16, and bleeding point 16 is positioned at above the middle part of the cross section of girder layer of cloth 13, connects air extractor above bleeding point 16, and ventilated membrane 14 is also provided with observation window 17;
Step 5: lay vacuum plant above girder mould 11, flow-guiding screen 12, Ω shape mozzle 15, girder layer of cloth 13 and ventilated membrane 14, and vacuumize;
Step 6: pour into resin by Ω shape mozzle 15, air extractor is bled, when observing resin impregnated girder layer of cloth 13 surface by observation window 17, stops perfusion;
Step 7: heating precuring;
Step 8: after resin solidification, closes described vacuum plant, stripping forming.
Method for filling of the present invention, adopts reperfusion mode from bottom to top.Close under the working environment of vacuum, resin flows into flow-guiding screen from mozzle, the girder layer of cloth infiltration then above flow-guiding screen.Along with resin continue pour into, the interior resin of girder layer of cloth is intermediate recess shape.Air extractor on the bleeding point of ventilated membrane is bled, and resin is flowed towards the depressed part of girder layer of cloth, by observation window observe resin resin clear girder layer of cloth thoroughly surface time, stop perfusion.Like this, resin just can fill up whole girder layer of cloth.The present invention adopts diversion mode from bottom to top, make perfusion more fully evenly, there is better perfusion effect; Bled by ventilated membrane, overcome the shortcoming of spiral bag air suction mode rate of air sucked in required deficiency, there is sufficient effect of bleeding, make resin can be full of whole girder layer of cloth, improve product quality; By observation window, perfusion process can be controlled, thus make filling process be in the state that can control.
Embodiment 2
As shown in Figure 3 and Figure 4, a kind of wind power generation blade girder method for filling, it comprises the following steps:
Step 1: lay flow-guiding screen 22 on girder mould 21 surface;
Step 2: lay girder layer of cloth 23 on flow-guiding screen 22;
Step 3: lay Ω shape mozzle 25 on flow-guiding screen 22;
Step 4: lay ventilated membrane 24 above girder layer of cloth 23, is provided with the extension 28 extending to flow-guiding screen 22 in the middle part of ventilated membrane 24, bleeding point 26 is positioned on extension 28, connects air extractor above bleeding point 26, and ventilated membrane 24 is also provided with observation window 27;
Step 5: lay vacuum plant above girder mould 21, flow-guiding screen 22, Ω shape mozzle 25 and ventilated membrane 24, and vacuumize;
Step 6: pour into resin by Ω shape mozzle 24, air extractor is bled, when observing girder layer of cloth surface described in resin impregnated by observation window 27, stops perfusion;
Step 7: heating precuring;
Step 8: after resin solidification, closes described vacuum plant, stripping forming.
The present embodiment, compared with embodiment 1, is only that step 4 is different.The step 4 of the present embodiment, establishes extension at the middle part of ventilated membrane, and is arranged on extension by bleeding point, like this, both also can reach the object of bleeding, and also can not impact the shape of girder layer of cloth.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (3)
1. a wind power generation blade girder method for filling, is characterized in that, it comprises the following steps:
Step 1: lay flow-guiding screen at girder die surface;
Step 2: lay girder layer of cloth on described flow-guiding screen;
Step 3: lay Ω shape mozzle on described flow-guiding screen;
Step 4: lay ventilated membrane above described girder layer of cloth, the middle part of described ventilated membrane is provided with bleeding point, connects air extractor above described bleeding point, and described ventilated membrane is also provided with observation window;
Step 5: lay vacuum plant above described girder mould, described flow-guiding screen, described Ω shape mozzle, described girder layer of cloth and described ventilated membrane, and vacuumize;
Step 6: pour into resin by described Ω shape mozzle, described air extractor is bled, when observing girder layer of cloth surface described in resin impregnated by described observation window, stops perfusion;
Step 7: heating precuring;
Step 8: after resin solidification, closes described vacuum plant, stripping forming.
2. wind power generation blade girder method for filling as claimed in claim 1, it is characterized in that, in described step 4, described bleeding point is positioned at above the middle part of the cross section of described girder layer of cloth.
3. wind power generation blade girder method for filling as claimed in claim 1, it is characterized in that, in described step 4, be provided with the extension extending to described flow-guiding screen in the middle part of described ventilated membrane, described bleeding point is positioned on described extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382978.4A CN104416920A (en) | 2013-08-28 | 2013-08-28 | Method for infusing wind turbine blade girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382978.4A CN104416920A (en) | 2013-08-28 | 2013-08-28 | Method for infusing wind turbine blade girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104416920A true CN104416920A (en) | 2015-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310382978.4A Pending CN104416920A (en) | 2013-08-28 | 2013-08-28 | Method for infusing wind turbine blade girder |
Country Status (1)
| Country | Link |
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| CN (1) | CN104416920A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676966A (en) * | 2018-11-21 | 2019-04-26 | 洛阳双瑞风电叶片有限公司 | A kind of wind electricity blade manufacturing method |
| CN110774618A (en) * | 2019-12-03 | 2020-02-11 | 东方电气（天津）风电叶片工程有限公司 | A fill structure fast for combined material wind-powered electricity generation blade girder cap |
| CN112140586A (en) * | 2020-09-18 | 2020-12-29 | 三一重能有限公司 | Wind power blade main beam pouring method and system |
| CN116252499A (en) * | 2023-01-03 | 2023-06-13 | 中材科技风电叶片股份有限公司 | Forming method of wind power blade and wind power blade |
| CN117382221A (en) * | 2023-10-17 | 2024-01-12 | 中材科技(阳江)风电叶片有限公司 | Interlayer pouring structure and pouring method of carbon pultrusion girder of wind power blade |
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| CN1398717A (en) * | 2001-07-24 | 2003-02-26 | 北京航空工艺研究所 | Technological process for producing large product of vacuum permeation formed composite material |
| CN1954995A (en) * | 2005-10-28 | 2007-05-02 | 通用电气公司 | Methods of making wind turbine rotor blades |
| CN102582092A (en) * | 2012-03-05 | 2012-07-18 | 株洲时代新材料科技股份有限公司 | Vacuum infusion molding method for thick-size carbon fiber product |
| CN102814996A (en) * | 2012-08-24 | 2012-12-12 | 中国人民解放军国防科学技术大学 | Preparing method of hybrid composite wing spar of large-scale wind power blade |
| EP2561977A1 (en) * | 2011-08-24 | 2013-02-27 | Nordex Energy GmbH | Method of manufacturing a wind energy facility rotor blade section with a carbon fibre reinforced main belt |
| CN103182784A (en) * | 2013-03-26 | 2013-07-03 | 中材科技风电叶片股份有限公司 | Vacuum infusion forming method for carbon fiber composite structure member |
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2013
- 2013-08-28 CN CN201310382978.4A patent/CN104416920A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1398717A (en) * | 2001-07-24 | 2003-02-26 | 北京航空工艺研究所 | Technological process for producing large product of vacuum permeation formed composite material |
| CN1954995A (en) * | 2005-10-28 | 2007-05-02 | 通用电气公司 | Methods of making wind turbine rotor blades |
| EP2561977A1 (en) * | 2011-08-24 | 2013-02-27 | Nordex Energy GmbH | Method of manufacturing a wind energy facility rotor blade section with a carbon fibre reinforced main belt |
| CN102582092A (en) * | 2012-03-05 | 2012-07-18 | 株洲时代新材料科技股份有限公司 | Vacuum infusion molding method for thick-size carbon fiber product |
| CN102814996A (en) * | 2012-08-24 | 2012-12-12 | 中国人民解放军国防科学技术大学 | Preparing method of hybrid composite wing spar of large-scale wind power blade |
| CN103182784A (en) * | 2013-03-26 | 2013-07-03 | 中材科技风电叶片股份有限公司 | Vacuum infusion forming method for carbon fiber composite structure member |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676966A (en) * | 2018-11-21 | 2019-04-26 | 洛阳双瑞风电叶片有限公司 | A kind of wind electricity blade manufacturing method |
| CN110774618A (en) * | 2019-12-03 | 2020-02-11 | 东方电气（天津）风电叶片工程有限公司 | A fill structure fast for combined material wind-powered electricity generation blade girder cap |
| CN112140586A (en) * | 2020-09-18 | 2020-12-29 | 三一重能有限公司 | Wind power blade main beam pouring method and system |
| CN116252499A (en) * | 2023-01-03 | 2023-06-13 | 中材科技风电叶片股份有限公司 | Forming method of wind power blade and wind power blade |
| CN117382221A (en) * | 2023-10-17 | 2024-01-12 | 中材科技(阳江)风电叶片有限公司 | Interlayer pouring structure and pouring method of carbon pultrusion girder of wind power blade |
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| CB02 | Change of applicant information |
Address after: 201300 No. 1989 Huang Xuan Road, Shanghai, Pudong New Area Applicant after: Shanghai Ai Feng wind technology development (Group) Co., Ltd. Address before: 201300 No. 1989 Huang Xuan Road, Shanghai, Pudong New Area Applicant before: Shanghai Aeolon Wind Energy Technology Development Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150318 |