CN202140242U - Wind driven generator vane made of bamboo fiber reinforced composite material - Google Patents
Wind driven generator vane made of bamboo fiber reinforced composite material Download PDFInfo
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- CN202140242U CN202140242U CN201120170493U CN201120170493U CN202140242U CN 202140242 U CN202140242 U CN 202140242U CN 201120170493 U CN201120170493 U CN 201120170493U CN 201120170493 U CN201120170493 U CN 201120170493U CN 202140242 U CN202140242 U CN 202140242U
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- reinforced composite
- composite material
- fiber reinforced
- bamboo fiber
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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
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Abstract
The utility model discloses a wind driven generator vane made of bamboo fiber reinforced composite material, which is formed by mold closing of an upper half housing and a lower half housing, and a web for supporting is arranged between the upper half housing and the lower half housing; the cylindrical part of the root part of a vane is a vane root, and the other end of the vane is a vane tip, the vane is provided with two side edges, one side with smooth outer outline is a front edge, and the other side is a rear edge; and bamboo fiber reinforced composite material/sheets are paved in the upper half housing or the lower half housing of the vane or the upper half housing and the lower half housing. The bamboo fiber reinforced composite material/sheets are paved in the upper half housing and the lower half housing of the vane, the mechanical strength and the stability of the wind driven generator vane are improved; the bamboo fiber reinforced composite material adopted by the wind driven generator vane can partially or totally replace the traditional glass fiber reinforced composite material, so as to further reduce the using amount of the vanes and improve the generating efficiency of the wind driven generator.
Description
Technical field
The utility model relates to the wind power plant manufacturing technology, relates in particular to a kind of blade of wind-driven generator of bamboo fiber reinforced composite material, and it is applicable to the production and the manufacturing of all horizontal axis wind-driven generator blades.
Background technique
Current, the blade of wind-driven generator industry generally adopts fibre reinforced composites, and fibre reinforced composites comprise reinforcing fiber and matrix resin two-part.Wherein, reinforcing fiber mainly adopts glass fibre and graphite fiber, and is main with glass fibre.And basic resin system mainly contains three types: epoxy systems, unsaturated polyester resin system and vinylite system, but be main with epoxy-resin systems mainly.
Fig. 1 is existing blade structure for wind driven generator schematic representation, and as shown in Figure 1, concerning blade, its root cylindrical part is called blade root 1, and the other end is called blade tip 2; Blade has two sides, while external frame slick and sly be called leading edge 3, the more sharp-pointed trailing edge 4 that is called, blade integral is made up of upper shell 5 and lower shell body 6, defines upper and lower casing with paring line 7.
As shown in Figures 2 and 3, the material that constitutes the structure of blade has unidirectional fibre reinforced composite beam 8, and it is wrapped in exterior skin 11 and inside panel 12 inside, also has sandwich material 9 in the inside of interior exterior skin in addition.Existing blade generally adopts the sandwich structure of inside and outside covering, and inside and outside covering adopts multiaxis to glass fibre reinforced composion; Core is used foam material more, also has to use the cork wood material.Its main stress member adopts one-way glass fibre reinforced composites beam.
The blade of wind-driven generator of main flow all adopts the glass fibre reinforced composion of epoxy systems, and shortcoming is that the leaf weight that produces is big, gives wind-driven generator load deleterious impact, as, the generating efficiency of restriction wind-driven generator.And a large amount of glass fibre and other raw materials that obtain from petroleum products of using all are non-renewable in the blade manufacturing.After blade was discarded, the industrial refuse of generation both had been difficult to handle, and was difficult for again reclaiming, and also cost is higher if reclaim, and does not meet the national sustainable development strategy.Along with generator capacity constantly enlarges, glass fibre can not satisfy the requirement of structure, load, and alternative material has only carbon fibre reinforced composite at present, its restricted application, and, be difficult to popularization in the field of business because it costs an arm and a leg.
And existing recombining bamboo and the level bamboo wood of adopting is applied to the technology of blade of wind-driven generator, though can significantly reduce the weight of blade, also exists complex manufacturing technology at present, stock utilization is low, the technological deficiency that is difficult to produce in batches etc.For example: in the rough course of working of recombining bamboo; The path bamboo wood is directly rolled, can not effectively remove bamboo wood central surf green, tabasheer part, and this becomes branch that the gummed property and the mechanical property of bamboo material are had a negative impact; Reduced the content of the bamboo fibre in the bamboo wood; Thereby the deficiency that causes the strength of materials causes adopting the intensity of the blade of wind-driven generator of this recombining bamboo or level bamboo wood to reduce, and is difficult in the blades of large-scale wind driven generator and uses.
The model utility content
In view of this; The main purpose of the utility model is to provide a kind of bamboo fiber reinforced composite material blade of wind-driven generator, with the mechanical strength and the stability of raising blade of wind-driven generator, and through improved production method; Partly or entirely replace the conventional glass fibre reinforced composites to lay bamboo fiber reinforced composite material in the blade of wind-driven generator; The weight of blade can be further reduced,, and the generating efficiency of wind-driven generator can be improved so that it is applicable to large-scale wind generating equipment.
For achieving the above object, the technological scheme of the utility model is achieved in that
A kind of blade of wind-driven generator of bamboo fiber reinforced composite material, this blade are mainly formed by upper half shell, lower half shell matched moulds, are provided with passive web between said upper and lower half shell; The root cylindrical portion of this blade is divided into blade root, the other end is a blade tip; Blade has two sides, one side the external frame slyness is leading edge, another side is a trailing edge; The upper half shell of this blade or lower half shell, or be equipped with bamboo fiber reinforced composite material/sheet material in upper and lower half shell.
Wherein, said bamboo fiber reinforced composite material/sheet material is the rectangular strip of cross section/section.
Said bamboo fiber reinforced composite material/sheet material, its two ends or wherein an end be wedge shape or split shape, the lap-joint when laying.
Stagger each other in the position of the lap-joint of said bamboo fiber reinforced composite material/sheet material when laying.
Passive web quantity is 1 to 3 between described upper and lower half shell.
The bamboo fiber reinforced composite material blade of wind-driven generator that the utility model provided has the following advantages:
Bamboo fiber reinforced composite material/sheet material is applied on the blade of wind-driven generator, and its performance and stability are except that the requirement that can satisfy the used for blades of wind driven generator material, and its mechanical strength and stability all are superior to other the blade of wind-driven generator that contains bamboo wood.Because therefore the abundant raw materials of this bamboo fiber reinforced composite material/sheet material, does not receive other condition restriction, thereby be fit to produce in batches.Use the blade of wind-driven generator of this bamboo fiber reinforced composite material, compare, have characteristics in light weight, that intensity is high with blade and other blades that contains bamboo wood that the conventional glass fibre reinforced composites are made.
Description of drawings
Fig. 1 is existing blade of wind-driven generator profile schematic representation;
Fig. 2 is the overall schematic of existing blade of wind-driven generator;
Fig. 3 is that the A-A of blade illustrated in figures 1 and 2 is to generalized section;
Fig. 4 is the local amplification effect figure of the bamboo fiber reinforced composite material/sheet material that adopts in the utility model blade of wind-driven generator;
Fig. 5 is bamboo fiber reinforced composite material in the utility model blade of wind-driven generator/sheet material bridging arrangement 16 schematic representation;
Fig. 6 is the utility model blade of wind-driven generator longitudinal profile schematic representation (part) that contains bamboo fiber reinforced composite material/sheet material shown in Figure 3;
Fig. 7 is the production method flow chart of the blade of wind-driven generator of the utility model bamboo fiber reinforced composite material.
[critical piece/element numbers explanation]
1: blade root
2: blade tip
3: leading edge
4: trailing edge
5: upper half shell
6: lower half shell
7: paring line
8: unidirectional fibre reinforced composite beam
9: sandwich material
10: web
11: exterior skin
12: inside panel
13: bamboo fiber felt
14: the crack
15: bamboo fibre
16: lap-joint
17: resin
18: bamboo fiber reinforced composite material/sheet material.
Embodiment
Embodiment below in conjunction with accompanying drawing and the utility model does further detailed explanation to the blade of wind-driven generator of the utility model.
On the blade of wind-driven generator of the utility model, adopt bamboo fiber reinforced composite material to replace blade top glass fibre reinforced composion and sandwich material etc.
Here; Described bamboo fiber reinforced composite material; Mainly be to constitute with the adhesive (not shown) by unidirectional bamboo fiber felt 13, as shown in Figure 4, be respectively equipped with the uneven serial longitudinal crack 14 of thickness of being interrupted on the upper and lower surface of unidirectional bamboo fiber felt 13 and the bamboo wall thereof; Be provided with adhesive layer in this crackle, and be equipped with the skim adhesive layer in the upper and lower surface and the circumferential surface thereof of directional fiber felt.
Here; Described bamboo fiber reinforced composite material mainly adopts bamboo woods such as mao bamboon, Dendrocalamus sinicus, green bamboo, cizu, sinocalamus latiflorus, Lei Zhu and firm bamboo, and the bamboo wood saw is cut into the one section thick bamboo tube of 1.5m to 20m length; Vertically cut open into two semicircle thick bamboo tubes along its diameter; And remove internal segment, through evacuating semicircle thick bamboo tube inner arc surface, after process treating such as super-dry, impregnation, assembly and hot pressing, process at last again.
Said through evacuating semicircle thick bamboo tube inner arc surface, be specially: discongest with rolling stone roller equipment, in the evacuation process; To semicircle thick bamboo tube internal surface diverse location carry out the part vertically cutting with radially basic refined, the uneven serial longitudinal crack 14 of thickness that semicircle thick bamboo tube inner arc surface is evacuated out be interrupted, and blue or green face keeps comparatively complete sheet structure; Simultaneously; To semicircle thick bamboo tube inner arc surface tabasheer layer cut, splitting and extruding, simultaneously outer arc surface bamboo green layer is rubbed, make that surf green and tabasheer layer segment come off, crackle, fragment or particle state; Transfer turnback, the reverse evacuation.So carry out several times and evacuate repeatedly, effectively evacuate bamboo wood, and remove surf green, the tabasheer part on bamboo wood surface, thereby strengthen the gummed property of bamboo wood, improve culm property.
The process of said drying, impregnation, assembly and hot pressing is specially: (directional bamboo fiber felt 13 of above-mentioned evacuation is done at baking box inner drying or airing through super-dry; Reaching moisture content is 8%～15%), impregnation (with dried bamboo fiber felt impregnation), assembly (directional bamboo fiber felt after the above-mentioned applying glue is mated formation in mould equably), hot pressing (adopting the cold cold heat pressing process or the baking and curing moulding process of colding pressing that goes out that advance) handle, and finally obtains the blanket of bamboo fiber reinforced composite material.
This blanket can cut into the use of becoming a useful person according to different needs, as, can above-mentioned blanket be cut into actual demand bamboo wood shape.In the utility model, can this blanket be cut into the rectangular strip of longitudinal section.
Fig. 7 is the production method flow chart of the blade of wind-driven generator of the utility model bamboo fiber reinforced composite material, and is as shown in Figure 7, and this method comprises:
The step that step 701, mould are prepared: comprise the ditch level of adjusting mould, root circular diameter, matched moulds gap, mismatch etc.; Must carry out mold cleaning in case of necessity, be about to die surface and clean out, play releasing agent; Shop, location layer sign also can be set as required.
Wherein, Comprise that also laying core, this bamboo fiber reinforced composite material optimum specifications are the rectangular strip sheet material of cross section/section, can also be processed into other shapes certainly when laying bamboo fiber reinforced composite material; (like prismatic); Its two ends or wherein an end can be processed into and be wedge shape or split shape such as shape so that when laying, can be meshing with each other, strengthen the mechanical property of blade.In addition, when laying strip sheet material, also must note the position with every bamboo wood overlap joint, i.e. lap-joint 16 layings of staggering each other is to avoid the mechanical properties because of the blade of the different artificial reduction of overlapping mode after processing.For example: if lap-joint 16 fails obviously to stagger each other or be word order, the mechanical property of the blade after will causing processing reduces, and is as shown in Figure 5.The upper half shell of this blade or lower half shell, or upper and lower half shell all can be laid according to the method described above and makes.
The process of step 703, perfusion and Procuring: be included in the shop laminar surface and lay porose isolating film, water conservancy diversion net, arrange exhaust tube, intrusion pipe that lay into rubber base, flange edge is pasted sealing joint strip, beats the vacuum bag film, forms the enclosed vacuum system; Vacuumize pressurize, require degree of vacuum to reach-0.1MPa, pressurize in 10 minutes, the negative pressure value of vacuum system-0.98MPa～-be qualified between the 0.1MPa; Beat second layer vacuum bag film again, inject sebific duct, pressurize, is prepared to implement vacuum and is led notes after the passed examination to-0.1MPa; When requiring ambient temperature, glass temperature, die temperature, resin temperature between 28 ℃～32 ℃, implement vacuum and lead notes, wait to lead annotate accomplish after, estimating; At last, when Procuring is accomplished, detect curing degree (Tg) value of blade again, require the Tg value, carry out the blade dyestripping then greater than 55 ℃.
The process of solidifying behind step 704, the matched moulds: comprise specifically that root polishing, hand are stuck with paste bonding angle, lay the counterweight box, lay arrester, hung in web, trial closing and survey the matched moulds gap, after the completion, prepare matched moulds; The release cloth of all bonding planes is torn; The blade coating structure glue in the bonding plane zone; Web is adhered to suction surface (being SS face, suction surface) and goes up the blade coating structure glue at web pressure side (being the PS bonding plane), pressure side and suction surface are bonded together, reinforcement and web were strengthened in hand was stuck with paste; Blade carries out back curing, and the temperature that requires to solidify behind the matched moulds is 75 ℃, solidifies then about 7 hours, after curing is accomplished after treating, detects the Tg value of blade, and greater than 75 ℃, the blade molding can form a complete blade of wind-driven generator as if the Tg value.Here, said web is strengthened, and is meant the middle support webs 10 of placing at upper and lower half housing of blade; The quantity of web can be 1 to 3.
Like this; Cross section such as Fig. 3, shown in Figure 6 of the blade of wind-driven generator that obtains through above-mentioned manufacture process; As typical embodiment, the sheet material that the bamboo fiber reinforced composite material 18 in this blade cuts into, the specification of its length is respectively: length range is between 0.5 meter～40 meters; Width can be 5 millimeters～50 millimeters, highly can be between 5 millimeters～50 millimeters.Be filled with resin 18 in the slit between each said sheet material.
In addition, in blade of wind-driven generator, use this bamboo fiber reinforced composite material and replace one-way glass fibre reinforced composites beam, but be not limited thereto, for example, the sheet material of bamboo fiber reinforced composite material is applied to the sandwich material of blade etc.This bamboo fiber reinforced composite material is applied in the production of blade of wind-driven generator, the product of processing can satisfy the load requirement of large-scale wind driven generator fully through mechanical test.
The above is merely the preferred embodiment of the utility model, is not the protection domain that is used to limit the utility model.
Claims (5)
1. the blade of wind-driven generator of a bamboo fiber reinforced composite material, this blade is mainly formed by upper half shell, lower half shell matched moulds, is provided with passive web between said upper and lower half shell; The root cylindrical portion of this blade is divided into blade root, the other end is a blade tip; Blade has two sides, one side the external frame slyness is leading edge, another side is a trailing edge; It is characterized in that, the upper half shell of this blade or lower half shell, or be equipped with bamboo fiber reinforced composite material/sheet material in upper and lower half shell.
2. the blade of wind-driven generator of bamboo fiber reinforced composite material according to claim 1 is characterized in that, said bamboo fiber reinforced composite material/sheet material is the rectangular strip of cross section/section.
3. the blade of wind-driven generator of bamboo fiber reinforced composite material according to claim 1 and 2 is characterized in that, said bamboo fiber reinforced composite material/sheet material, its two ends or wherein an end be wedge shape or split shape, the lap-joint when laying.
4. the blade of wind-driven generator of bamboo fiber reinforced composite material according to claim 3 is characterized in that, the position of the lap-joint of said bamboo fiber reinforced composite material/sheet material when laying is the arrangement of staggering.
5. the blade of wind-driven generator of bamboo fiber reinforced composite material according to claim 1 is characterized in that, passive web quantity is 1 to 3 between described upper and lower half shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120170493U CN202140242U (en) | 2011-05-25 | 2011-05-25 | Wind driven generator vane made of bamboo fiber reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120170493U CN202140242U (en) | 2011-05-25 | 2011-05-25 | Wind driven generator vane made of bamboo fiber reinforced composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140242U true CN202140242U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120170493U Expired - Fee Related CN202140242U (en) | 2011-05-25 | 2011-05-25 | Wind driven generator vane made of bamboo fiber reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140242U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230448A (en) * | 2011-05-25 | 2011-11-02 | 北京世纪威能风电设备有限公司 | Wind power generator blade of bamboo fibre reinforced composite material and manufacture method thereof |
| CN107269461A (en) * | 2017-08-10 | 2017-10-20 | 中材科技风电叶片股份有限公司 | Wind electricity blade leaf and root structure |
| CN107344422A (en) * | 2017-08-10 | 2017-11-14 | 中材科技风电叶片股份有限公司 | Wind electricity blade lightweight leaf and root structure production method |
-
2011
- 2011-05-25 CN CN201120170493U patent/CN202140242U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230448A (en) * | 2011-05-25 | 2011-11-02 | 北京世纪威能风电设备有限公司 | Wind power generator blade of bamboo fibre reinforced composite material and manufacture method thereof |
| CN107269461A (en) * | 2017-08-10 | 2017-10-20 | 中材科技风电叶片股份有限公司 | Wind electricity blade leaf and root structure |
| CN107344422A (en) * | 2017-08-10 | 2017-11-14 | 中材科技风电叶片股份有限公司 | Wind electricity blade lightweight leaf and root structure production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20120208 Termination date: 20180525 |