CN102626992A - Method for preparing manhole plate and manhole cover plate of megawatt-stage wind power generation blade root - Google Patents
Method for preparing manhole plate and manhole cover plate of megawatt-stage wind power generation blade root Download PDFInfo
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- CN102626992A CN102626992A CN2012101038967A CN201210103896A CN102626992A CN 102626992 A CN102626992 A CN 102626992A CN 2012101038967 A CN2012101038967 A CN 2012101038967A CN 201210103896 A CN201210103896 A CN 201210103896A CN 102626992 A CN102626992 A CN 102626992A
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Abstract
The invention discloses a method for preparing a manhole plate and a manhole cover plate of a megawatt-stage wind power generation blade root. The method for preparing the manhole plate comprises the following steps of: designing a dedicated mould of a manhole steel mould inner ring first, then paving resin pre-impregnating fiber cloth and a sandwich structure by using the manhole steel mould inner ring as the center, and demoulding finally by vacuum pumping, heating and curing; and the method for preparing the manhole cover plate comprises the following steps of: designing a dedicated mould of a manhole cover plate steel mould according to the structure characteristic of the manhole plate of the wind power generation root, then paving the chopped strand mat which is immersed with epoxy resin and the fiber cloth in the steel mould according to an optimized scheme, reaching a needed thickness, carrying out the curing processing, and obtaining the manhole cover plate, which is firm in sticking, good in stability, high in strength, standard and smooth in appearance and excellent in quality, after re-finishing. The method disclosed by the invention has the advantages of strong operability, high industrialization degree and wide application range.
Description
Technical field
The present invention relates to a kind of preparation method of blade of wind-driven generator, be specifically related to the preparation method of a kind of megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof.
Background technology
In the manufacturing process of blade of MW class wind turbine; People's orifice plate of root of blade has and stops that foreign matter gets into blade interior, operating platform is provided and plays the effect of support structure to the attendant; The profile of people's orifice plate is circular, and structure is the foam core glass fibre reinforced plastic structure; The manufacturing process of prior art megawatt wind power generator blade root people orifice plate adopts branch semicircle shop layer always; And then cut manhole and be assembled into making together; Since adopt the preparation method of dividing semicircle to splice again, the people's orifice plate intensity discrepancy in elevation for preparing, and appearance is not attractive in appearance; And production efficiency is low, and production cost is higher.And the moulding process of present megawatt level wind power generation root of blade cover plate for manhole all is hand pasting forming basically, all is to paste work at a dull and stereotyped left-hand seat, and cut lengths are irregular; Thickness requirement is inconsistent; Intensity is lower, because rule parasexuality difference and people's orifice plate matching degree are poor, capping is not tight.Therefore, on the basis of existing technology necessary, it is high to research and develop a kind of production efficiency, the megawatt level wind power generation root of blade people's orifice plate of strong operability and the preparation method of cover plate for manhole thereof.
Summary of the invention
Goal of the invention: the objective of the invention is in order to solve the deficiency of prior art; A kind of production efficiency is high, easy to operate, industrialization degree the is high megawatt level wind power generation root of blade people's orifice plate and the preparation method of cover plate for manhole thereof are provided; People's orifice plate and cover plate for manhole thereof that this method prepares, the outward appearance rule is slick and sly, and is bonding firm; Good stability, intensity is high.
Technical scheme: in order to realize the object of the invention, the technical scheme that the present invention adopts is:
The preparation method of a kind of megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof specifically may further comprise the steps:
The preparation of megawatt level wind power generation root of blade people orifice plate:
A, design circular manhole punching block inner ring, then manhole punching block inner ring is placed on the release cloth on the steel plate desktop of breaking floor wax, and stamps releasing agent or floor wax at the outer surface of manhole punching block inner ring according to people's orifice bore diameter;
B, the glass fabric epoxy resin dipping that will cut out in advance, the periphery around manhole punching block inner ring is laid on the release cloth on the steel plate desktop then; Then the core of the preimpregnation epoxy resin edge along manhole inner ring punching block is laid on the glass fabric that soaks full epoxy resin; Re-lay the glass fabric of preimpregnation epoxy resin then at the core upper surface of preimpregnation epoxy resin, and on the glass fabric of preimpregnation epoxy resin, lay one deck release cloth; Described core is made up of PET cystosepiment or balsa wood, has the hardness height, the advantage of pressure resistance.
C and then on release cloth, covered the hole film of sealing process; And hole film vacuumized, the auxiliary cured epoxy resin of heating then, treat epoxy resin cure after; The demoulding; And with the taking-up of manhole punching block inner ring, handle totally with the sander burr that the manhole panel edges is unnecessary at last, obtain integrated megawatt level wind power generation root of blade people orifice plate;
The preparation of megawatt level wind power generation root of blade cover plate for manhole:
A, according to the sized cover plate for manhole punching block of said people's orifice plate, the removing surface of cover plate for manhole punching block is clean,
Use clean cotton to soak into the even brushing punching block of releasing agent surface; Treat that releasing agent volatilization back adds 5% Chinese white epoxide ring resin bed at punching block external coating one deck, treats to paste the layer of surface felt behind the epoxy resin cure;
B, on surperficial felt, lay earlier one deck 400 to 450g/m then
2Weak point cut felt, re-lay multilayer 350 to 400g/m
2The grid cloth, it is a whole cloth that the 1st layer of grid cloth of wherein laying requires, flange to punching block flange; Hair roller with speckling with epoxy resin is wetting with the grid cloth, and guarantees the sturdy punching block of the grid cloth surface of corner, and other every layer grid cloth do not need flange; Adopt polylith cloth to constitute, require butt joint, the every fault of abutment joint is opened 50mm at least; Every layer of grid cloth all used the metallic roll compacting, and particularly in punching block corner, it is a whole cloth that last one deck woven roving requires; The height of final grid cloth and punching block flange maintain an equal level, and re-lay one deck 400 at last to 450g/m
2Weak point cut felt and cover all shop layers; All grid cloth compactings successively guarantee no bubble, no layering, corrugationless;
C, treat that cutting the felt upper surface at the weak point of the superiors behind the epoxy resin cure scrapes one deck putty, make smooth surface,, cut away burr and prepare and the suitable cover plate for manhole of above-mentioned people's orifice plate at last with the punching block demoulding.
As preferred version; The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof; In the preparation process of megawatt level wind power generation root of blade people orifice plate, the diameter of manhole punching block inner ring and the height of inner ring can design according to the structure needs of different fan blades.
As preferred version, the preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof, in the preparation process of megawatt level wind power generation root of blade people orifice plate, the described temperature that is heating and curing of step c is 30 to 50 ℃.The solidification temperature of epoxy resin fiberglass cloth is crossed in the preimpregnation under vacuum state of the present invention's a large amount of experiment screenings of process; A large amount of experimental results show; When the temperature that is heating and curing is 30 to 50 ℃; It is fast that the epoxy resin fiberglass cloth curing rate is crossed in preimpregnation under vacuum state, solidifies evenly, can not occur solidifying do not pass through, fold or bag are waited indefinitely situation.
As preferred version; The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof; In the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the thickness of the adding 5% Chinese white epoxy resin layer of punching block external coating is 0.1 to 0.5mm among the step a.The present invention is that the purpose that 0.1 to 0.5mm adding 5% Chinese white is stuck with paste epoxy resin layer is to make the painted unification of cover plate for manhole at punching block external coating thickness, and is specious, and increases weather resistance, increases the service life.
As preferred version, the preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof, in the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the number of plies of step b medium square cloth is 10 to 50 layers.The present invention is according to the tensile strength needs of fan blade cover plate for manhole; The number of plies through a large amount of experiment screening pre-soaked resin grid cloth; Experimental result shows, when pre-soaked resin grid cloth is 10 to 50 layers, can not only meet the needs of fan blade tensile strength; And can global formation, can layering; And the present invention is in the process of preparation cover plate for manhole; Through the laying sequencing of a large amount of experiment screening layers of materials, experimental result shows, adopts and in the cover plate for manhole punching block, lays surperficial felt earlier; And then on surperficial felt, lay weak point and cut felt, re-lay 10 to 50 layer 350 to 400g/m
2The grid cloth of pre-soaked resin re-lays one deck weak point at last and cuts felt, final curing, and the cover plate for manhole for preparing has good integrity, and especially bonding firm, intensity is high, and is sturdy and durable.
As preferred version; The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof; In the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the putty described in the step c is stuck with paste and gas phase SiO by epoxy resin, Chinese white
2Form, as preferably, wherein the percentage by weight stuck with paste of Chinese white is 5%, forms the present invention and scrapes one deck on the cover plate for manhole surface and stuck with paste and gas phase SiO by epoxy resin, 5% Chinese white
2Putty after, the cover plate for manhole surface flatness is high, weatherability is better, compares the cover plate for manhole longer service life of prior art.
As preferred version; The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof; Described cover plate for manhole punching block is circular steel tank, and diameter of a circle is less than steel tank top diameter of a circle below the steel tank, and the cover plate for manhole for preparing like this is that top diameter is big; The cover plate that following diameter is little, ability and the supporting use of people's orifice plate.
Beneficial effect: the preparation method of megawatt level wind power generation root of blade people's orifice plate provided by the invention and cover plate for manhole thereof compares with prior art and has the following advantages:
The preparation method of megawatt wind power generator blade root cover plate for manhole provided by the invention; At first according to the characteristics as a result of cover plate for manhole, designer's blind patch punching block mould adopts cover plate for manhole punching block particular manufacturing craft to prepare integrated cover plate for manhole then; Have bonding firm; The advantage that good stability, intensity are high, rule is slick and sly shows through contrast and experiment, and be to accompany 5 of cover plate for manhole life-span of obtaining of existing manual splicing the service life of the cover plate for manhole that the present invention prepares; This method is workable; Industrialization degree is high; Production efficiency is high, and the scope of application is extensive, broken that the traditional blades cover plate for manhole relies on that artificial splicing preparation method brings as: overall appearance ellipse, fold, bag is dead, make efficiency is low, the bonding shortcoming such as insecure of dependence adhesive.
The preparation method of megawatt wind power generator blade root people orifice plate provided by the invention adopts the one-body molded people's orifice plate for preparing of manhole punching block inner ring, does not need two semicircle butt joints; Have the intensity height, shape rule are accurate, robust advantage; And the present invention can overcome prior art needs many people to carry out bonding; The abutment joint reinforcement, people's orifice plate bound edge, operations such as curing; Production efficiency can improve 10 times.
Description of drawings
Fig. 1 is the structural representation in the preparation megawatt level wind power generation root of blade people orifice plate process.
Fig. 2 is along the structural representation of A-A direction among Fig. 1.
Fig. 3 is the structural representation of the cover plate for manhole punching block of preparation megawatt level wind power generation root of blade cover plate for manhole.
The specific embodiment:
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
The preparation method of a kind of megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof specifically may further comprise the steps:
The preparation of megawatt level wind power generation root of blade people orifice plate:
As depicted in figs. 1 and 2; Design circular manhole punching block inner ring (1) according to people's orifice bore diameter earlier; Then manhole punching block inner ring (1) is placed on the release cloth on the steel plate desktop (3) of breaking floor wax, and stamps releasing agent or floor wax at the outer surface of manhole punching block inner ring (1);
B, glass fabric (2-1) epoxy resin dipping that will cut out in advance, the periphery around manhole punching block inner ring (1) is laid on the release cloth on the steel plate desktop (3) then; Then the core (2-2) of the preimpregnation epoxy resin edge along manhole inner ring punching block (1) is laid on the glass fabric (2-1) that soaks full epoxy resin; Re-lay the glass fabric (2-3) of preimpregnation epoxy resin then at core (2-2) upper surface of preimpregnation epoxy resin, and go up laying one deck release cloth at the glass fabric (2-3) of preimpregnation epoxy resin;
C and then on release cloth, covered the hole film of sealing process; And hole film vacuumized, the auxiliary cured epoxy resin of heating then, treat epoxy resin cure after; The demoulding; And with manhole punching block inner ring (1) taking-up, handle totally with the sander burr that the manhole panel edges is unnecessary at last, obtain integrated megawatt level wind power generation root of blade people orifice plate;
The preparation of megawatt level wind power generation root of blade cover plate for manhole:
A, according to the sized cover plate for manhole punching block (4) of said people's orifice plate, as shown in Figure 3, cover plate for manhole punching block (4) removing surface is clean, use clean cotton to soak into the even brushing punching block of releasing agent surface; Treat that releasing agent volatilization back adds 5% Chinese white epoxy layer at punching block (4) external coating one deck, treats to paste the layer of surface felt behind the epoxy resin cure;
B, on surperficial felt, lay earlier one deck 400 to 450g/m then
2Weak point cut felt, re-lay 22 layer 350 to 400g/m
2The grid cloth, it is a whole cloth that the 1st layer of grid cloth of wherein laying requires, flange to punching block (4) flange; Hair roller with speckling with epoxy resin is wetting with the grid cloth, and the sturdy punching block of grid cloth (4) surface of guaranteeing corner, and other every layer grid cloth do not need flange; Adopt polylith cloth to constitute, require butt joint, the every fault of abutment joint is opened 50mm at least; Every layer of grid cloth all used the metallic roll compacting, and particularly in punching block (4) corner, it is a whole cloth that last one deck woven roving requires; The height of final grid cloth and punching block (4) flange maintain an equal level, and re-lay one deck 400 at last to 450g/m
2Weak point cut felt and cover all shop layers; All grid cloth compactings successively guarantee no bubble, no layering, corrugationless;
C, treat that cutting the felt upper surface at the weak point of the superiors behind the epoxy resin cure scrapes one deck putty, make smooth surface,, cut away burr and prepare and the suitable cover plate for manhole of above-mentioned people's orifice plate at last with punching block (4) demoulding.
The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof, in the preparation process of megawatt level wind power generation root of blade people orifice plate, the described temperature that is heating and curing of step c is 30 to 50 ℃.
The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof; In the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the thickness that adding 5% Chinese white of punching block among the step a (4) external coating is stuck with paste epoxy resin layer is 0.1 to 0.5mm.
The preparation method of above-described megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof, in the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the putty described in the step c is stuck with paste and gas phase SiO by epoxy resin, 5% Chinese white
2Form.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. the preparation method of megawatt level wind power generation root of blade people's orifice plate and cover plate for manhole thereof is characterized in that may further comprise the steps:
The preparation of megawatt level wind power generation root of blade people orifice plate:
A, design circular manhole punching block inner ring (1) according to people's orifice bore diameter; Then manhole punching block inner ring (1) is placed on the release cloth on the steel plate desktop (3) of breaking floor wax, and stamps releasing agent or floor wax at the outer surface of manhole punching block inner ring (1);
B, glass fabric (2-1) epoxy resin dipping that will cut out in advance, the periphery around manhole punching block inner ring (1) is laid on the release cloth on the steel plate desktop (3) then; Then the core (2-2) of the preimpregnation epoxy resin edge along manhole inner ring punching block (1) is laid on the glass fabric (2-1) that soaks full epoxy resin; Re-lay the glass fabric (2-3) of preimpregnation epoxy resin then at core (2-2) upper surface of preimpregnation epoxy resin, and go up laying one deck release cloth at the glass fabric (2-3) of preimpregnation epoxy resin;
C and then on release cloth, covered the hole film of sealing process; And hole film vacuumized, the auxiliary cured epoxy resin of heating then, treat epoxy resin cure after; The demoulding; And with manhole punching block inner ring (1) taking-up, handle totally with the sander burr that the manhole panel edges is unnecessary at last, obtain integrated megawatt level wind power generation root of blade people orifice plate;
The preparation of megawatt level wind power generation root of blade cover plate for manhole:
A, according to the sized cover plate for manhole punching block (4) of said people's orifice plate, cover plate for manhole punching block (4) removing surface is clean,
Use clean cotton to soak into the even brushing punching block of releasing agent surface; After treating the releasing agent volatilization, add 5% Chinese white epoxy layer, treat to paste the layer of surface felt behind the epoxy resin cure at punching block (4) external coating one deck;
B, on surperficial felt, lay earlier one deck 400 to 450g/m then
2Weak point cut felt, re-lay multilayer 350 to 400g/m
2The grid cloth, it is a whole cloth that the 1st layer of grid cloth of wherein laying requires, flange to punching block (4) flange; Hair roller with speckling with epoxy resin is wetting with the grid cloth, and the sturdy punching block of grid cloth (4) surface of guaranteeing corner, and other every layer grid cloth do not need flange; Adopt polylith cloth to constitute, require butt joint, the every fault of abutment joint is opened 50mm at least; Every layer of grid cloth all used the metallic roll compacting, and particularly in punching block (4) corner, it is a whole cloth that last one deck woven roving requires; The height of final grid cloth and punching block (4) flange maintain an equal level, and re-lay one deck 400 at last to 450g/m
2Weak point cut felt and cover all shop layers; All grid cloth compactings successively guarantee no bubble, no layering, corrugationless;
C, treat that cutting the felt upper surface at the weak point of the superiors behind the epoxy resin cure scrapes one deck putty, make smooth surface,, cut away burr and prepare and the suitable cover plate for manhole of above-mentioned people's orifice plate at last with punching block (4) demoulding.
2. the preparation method of megawatt level wind power generation root of blade people's orifice plate according to claim 1 and cover plate for manhole thereof is characterized in that, in the preparation process of megawatt level wind power generation root of blade people orifice plate, the described temperature that is heating and curing of step c is 30 to 50 ℃.
3. the preparation method of megawatt level wind power generation root of blade people's orifice plate according to claim 1 and cover plate for manhole thereof; It is characterized in that; In the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the thickness that adding 5% Chinese white of punching block among the step a (4) external coating is stuck with paste epoxy resin layer is 0.1 to 0.5mm.
4. the preparation method of megawatt level wind power generation root of blade people's orifice plate according to claim 1 and cover plate for manhole thereof; It is characterized in that; In the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the number of plies of step b medium square cloth is 10 to 50 layers.
5. the preparation method of megawatt level wind power generation root of blade people's orifice plate according to claim 1 and cover plate for manhole thereof; It is characterized in that; In the preparation process of megawatt level wind power generation root of blade cover plate for manhole, the putty described in the step c is stuck with paste and gas phase SiO by epoxy resin, Chinese white
2Process.
6. the preparation method of megawatt level wind power generation root of blade people's orifice plate according to claim 1 and cover plate for manhole thereof is characterized in that described cover plate for manhole punching block (4) is circular steel tank, and steel tank below diameter of a circle is less than steel tank top diameter of a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103896.7A CN102626992B (en) | 2012-04-11 | 2012-04-11 | A kind of megawatt level wind power generation root of blade manhole plate and the preparation method of cover plate for manhole thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103896.7A CN102626992B (en) | 2012-04-11 | 2012-04-11 | A kind of megawatt level wind power generation root of blade manhole plate and the preparation method of cover plate for manhole thereof |
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| CN102626992A true CN102626992A (en) | 2012-08-08 |
| CN102626992B CN102626992B (en) | 2016-12-14 |
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| CN201210103896.7A Expired - Fee Related CN102626992B (en) | 2012-04-11 | 2012-04-11 | A kind of megawatt level wind power generation root of blade manhole plate and the preparation method of cover plate for manhole thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104149358A (en) * | 2014-07-18 | 2014-11-19 | 威海光威复合材料有限公司 | Manufacturing method for composite material sandwich pipe fitting |
| CN111425355A (en) * | 2020-04-02 | 2020-07-17 | 连云港中复连众复合材料集团有限公司 | Assembling method of novel breathing port of megawatt wind driven generator blade |
| CN111577529A (en) * | 2020-05-25 | 2020-08-25 | 湖南翰坤实业有限公司 | Wind power generation blade and installation method thereof |
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| CN101003179A (en) * | 2007-01-12 | 2007-07-25 | 连云港中复连众复合材料集团有限公司 | Method for manufacturing blades of large-scale wind driven generator |
| CN101486258A (en) * | 2009-02-27 | 2009-07-22 | 连云港中复连众复合材料集团有限公司 | Method for manufacturing megawatt wind power generator blade root |
| WO2011044750A1 (en) * | 2009-10-14 | 2011-04-21 | Huang Zhengming | Wind turbine blade structure, processing and forming method thereof |
| CN102092134A (en) * | 2010-11-08 | 2011-06-15 | 天津东汽风电叶片工程有限公司 | Integrated infusion molding method for front and rear edge flanges and shell of wind turbine blade |
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| CN101003179A (en) * | 2007-01-12 | 2007-07-25 | 连云港中复连众复合材料集团有限公司 | Method for manufacturing blades of large-scale wind driven generator |
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| CN104149358A (en) * | 2014-07-18 | 2014-11-19 | 威海光威复合材料有限公司 | Manufacturing method for composite material sandwich pipe fitting |
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| CN111577529A (en) * | 2020-05-25 | 2020-08-25 | 湖南翰坤实业有限公司 | Wind power generation blade and installation method thereof |
| CN111577529B (en) * | 2020-05-25 | 2021-04-30 | 湖南翰坤实业有限公司 | Wind power generation blade and installation method thereof |
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| CN102626992B (en) | 2016-12-14 |
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