CN202417811U - Lengthened type wind driven generator blade - Google Patents
Lengthened type wind driven generator blade Download PDFInfo
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- CN202417811U CN202417811U CN2012200518750U CN201220051875U CN202417811U CN 202417811 U CN202417811 U CN 202417811U CN 2012200518750 U CN2012200518750 U CN 2012200518750U CN 201220051875 U CN201220051875 U CN 201220051875U CN 202417811 U CN202417811 U CN 202417811U
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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 relates to a lengthened type wind driven generator blade, in particular to a unique blade tip lengthening connection structure which comprises a section of new blade tip connected at a blade tip of a wind wheel blade of the existing wind driven generator. The lengthened type wind driven generator blade is safe in structure, simple in technology, lower in cost and higher in implementation feasibility.
Description
Technical field
The utility model belongs to wind power generation field, relates to a kind of extended type blade of wind-driven generator.
Background technique
The basic functional principle of wind power generating set is from wind, to absorb energy and utilize aerodynamic principle that wind energy transformation is become the rotation ability through wind wheel, will rotate through generator then and can transform into electric energy.Wherein wind wheel comprises wheel hub and blade, and length of blade is long more, and the wind energy that then absorbs is many more, and the unit generation amount is high more, but also bigger in the produced simultaneously load that absorbs multipotency more.
Get into the early stage of China in Large-scale Wind Turbines technology since technology new, have a big risk, wind energy turbine set developer generally adopts conservative strategy, selects the relatively short blade of length.Though the short blade generated energy is little, the load of bringing to unit is also little, so unit safety has obtained maximum guarantee.Development along with industry; There has been more and more deep understanding in China enterprise to the performance load of wind power generating set; Assumed (specified) load more accurately gradually, thereby begin to select longer blade gradually in the wind energy turbine set of same level wind speed, thus improve investment generating income to absorb more windy ability.
Yet, if taked conservative strategy to select the wind energy turbine set of short blade to hope to use longer blade need purchase blade again.This makes that the cost of technology upgrading is too high, can't not carry out owing to do not possess the economic benefit of technology upgrading usually.
The utility model is considered on the basis of existing short blade, to pass through safe structure design, easy blade upgrading process and reasonably surface treatment, and has realized the technology upgrading of short blade to linear leaf with extremely low cost.This helps improving with low-cost mode the annual electricity generating capacity of existing wind power plant, creates bigger new energy economic benefit of investment.
The model utility content
The purpose of the utility model provides a kind of extended type blade of wind-driven generator; Said extended type wind electricity blade mainly is that the length that increases existing wind turbines rotor blade tip improves the wind sweeping area of wind wheel, and then realizes improving the generated energy of wind power generating set; Explore the extended type blade of wind-driven generator that a kind of structural safety, technology are simple, cost is lower, operational feasibility is higher simultaneously.
To achieve these goals; The utility model provides a kind of method of the wind turbines rotor blade that extends; The method of said lengthening wind turbines rotor blade mainly is to connect one section new blade tip in produced existing blade tip to extend (comprise install with not the blade of installation), and extension length is not less than 0.5 meter; Blade behind the lengthening comprises the main body of existing blade and the blade tip section that increases newly; The said blade tip section that increases newly realizes and being connected of original blade body through binder etc. is bonding, and link position mainly comprises connection and/or the new web of connection, web and being connected of existing blade of connection, the housing of beam cap.The main method of the existing blade of lengthening is:
At first, the Autocad that uses a computer through the existing blade and the structure of lengthening rear blade are analyzed, is farthest guaranteeing to draw best linkage structure and manufacturing process under the prerequisite of structural safety; Then; Said existing blade pass crossed installations such as positioning tool, be fixed on blade rack and/or the worktable; And said existing blade tip is carried out polishing in the surface and/or the blade tip housing is cut and/or blocks according to lengthened vanes technology, use new blade tip mould and new new blade tip housing of blade tip web mould manufacturing and web simultaneously; Once more, use positioning tool etc. is located new blade tip housing, new blade tip web, be assembled on the existing blade tip relevant position, and carries out operations such as back curing, surface treatment, counterweight and accomplish the lengthened vanes transformations.
The said blade tip shell construction that increases newly is similar basically with existing blade tip shell construction, all includes upper shell, lower shell body, beam cap and web.In the design of carrying out new blade tip housing (containing the beam cap) and web, will guarantee that its geomery and existing blade join domain are consistent when producing, so that can use binder etc. to carry out bonding the connection smoothly with existing blade.
Before to said existing lengthened vanes of having made, can carry out the processing of following several kinds of modes to said existing blade:
Mode one: existing blade tip is cut.
This kind linkage structure mainly be the connection through new and old web, new and old beam cap connection and new and old housing be connected the lengthening of realizing said existing blade tip.Through said existing blade tip being carried out the housing cutting and/or blocking, make said blade interior web expose, so that use binder and/or glass fibre to carry out the attended operation of new and old web, guarantee the whole continuity and the Security of lengthening rear blade structure.Wherein, the web form exposed in existing blade tip position has following three kinds:
One of which near existing blade web end position, excises the part except that web;
Its two, near existing blade web end position, after the part excision that will be except that web, the web brachymemma that will stretch out blade shell, the web that reserve part stretches out;
Its three, will comprise that directly the tip segment of web cuts away.
Mode two: only, do not cut and/or block to the processing of polishing of existing blade tip position outer surface.
This kind linkage structure mainly is that the connection through the connection of new and old beam cap, new and old housing realizes the lengthening to said existing blade tip with new web with being connected of existing blade tip.This kind operating method makes the process program that said existing blade tip is extended become very simple, easy to operation, with low cost.
Through the blade behind said existing blade and the said lengthening is carried out finite element analysis, the Security of the rear blade structure that can guarantee to the full extent to extend; Adopt the scheme of blade tip position lengthening, can guarantee to the full extent that the existing blade of aeroperformance, assurance of blade farthest adds linear leaf under the less relatively situation of weight increase, and transformation lengthening technology is simple and easy to do, cost is lower.Through increasing the wind-driven generator group wind-wheel wind sweeping area, make the same unit annual electricity generating capacity in transformation back increase about 5%.
The basic step of said lengthening wind electricity blade length method is following:
1, use positioning tool will have blade installation now, be fixed on blade rack and/or the worktable;
2, said existing blade tip is carried out polishing in the surface and/or the blade tip housing is cut and/or blocks;
3, use new blade tip housing mould and the new new blade tip housing of blade tip web mould manufacturing and new blade tip web;
4, use positioning tool that new blade tip lower shell body and web are positioned to former blade corresponding position; And guarantee that new and old blade shell lap width is not less than 0.3 meter, is not less than 0.05 meter as if the lap width that has then new and old web splice width of web splice and/or hand to stick with paste glass fibre, and do positioning mark;
5, remove the new blade tip lower shell body and the web of having good positioning, be coated with old blade lap position and new and old web splice position at new blade tip lower shell body and scrape binder, and carry out bonding according to the position location new blade tip lower shell body and new blade tip web;
6, use hand to stick with paste the bonding angle that the technology hand is stuck with paste leading edge and new and old blade link position, and use metallic conductor that new and old conducting system is connected;
7, be coated with in the bonding position of needs and scrape binder, through matched moulds, back solidify, after the operation such as surface treatment (make blade surface smooth-going), the blade after obtaining extending.
As stated, the extended type blade of wind-driven generator that provides of the utility model has following characteristics:
1, said extended type blade of wind-driven generator comprises existing blade-section and one section new tip segment, and whole said extended type blade of wind-driven generator connects one section new blade tip through the blade tip place at existing blade to be realized.
2, said extended type blade of wind-driven generator comprises the web and the new web of the existing blade of part, existing blade, and the existing blade of said part be through the blade tip that will have blade now block blade realization, existing web and new web be connected the bonding realization that is through binder and/or glass fibre.
3, said extended type blade of wind-driven generator comprises the blade tip and the new webs of all existing blades, existing blade, and the blade tip of existing blade and new web be connected the bonding realization that is through binder and/or glass fibre.
4, said extended type blade of wind-driven generator comprises existing blade beam cap and new blade tip beam cap, and existing blade beam cap and new blade tip beam cap be connected the bonding realization that is through binder.
5, said extended type blade of wind-driven generator comprises existing blade and new blade tip housing, and existing blade and new blade tip housing be connected the bonding realization that is through binder.
6, said extended type blade of wind-driven generator comprises the conducting system of existing blade and the conducting system of new blade tip, and existing blade conducting system is with newly being connected through metallic conductor of conducting system of blade tip connects realization.
Description of drawings
Through hereinafter with reference to the description part that accompanying drawing carried out, can better understand all above-mentioned characteristics, wherein said accompanying drawing shows the non-limiting example of the utility model, said accompanying drawing is:
Fig. 1 is the wind-driven generator unit overall schematic after the lengthened vanes described in the utility model;
Fig. 2 is the partial view of Fig. 1;
Fig. 3 is blade installation location schematic representation;
Fig. 4 is existing blade tip position view;
Fig. 5 is Fig. 4 section A-A position view;
Fig. 6 is the partial enlarged view of Fig. 5;
Fig. 7 is existing blade tip cutting back schematic representation;
Fig. 8 is new blade tip housing schematic representation;
Fig. 9 is the new and old blade tip assembling schematic representation of the existing blade tip of cutting;
Figure 10 Fig. 8 cross section C-C position view;
Figure 11 is the partial enlarged view of Figure 10;
Figure 12 Fig. 8 cross section E-E position view;
Figure 13 is the partial enlarged view of Figure 12;
Figure 14 is not for cutting the new and old blade tip assembling schematic representation of existing blade tip.
Embodiment
The utility model relates to a kind of method that improves the wind power generating set generated energy, and said method mainly is to increase the generated energy that the wind wheel wind sweeping area improves wind power generating set through adding linear leaf.Below set forth a kind of limiting examples, said improved wind power generating set overall schematic such as Fig. 1, shown in Figure 2, wherein 1 is the basis, and 2 is wind-driven generator tower frame, and 3 is the wind wheel blade arrester, and 4 is the lengthening section blade tip, and 5 are existing blade, and 6 is the cabin; Said existing blade localization method is as shown in Figure 3, wherein 7 lays positioning tool for blade, and 8 is blade rack; Existing blade tip positional structure such as Fig. 4, Fig. 5, shown in Figure 6, wherein 9 for having the webs of blade now, and 10 for having the beam caps of blade or new blade tip now, and 11 is binder, and 17 is bonding angle; Existing blade tip after the cutting and new blade tip housing such as Fig. 7, shown in Figure 8, wherein 12 is regional for the existing blade web or the new and old web splice that stretch out, and 13 is new blade tip housing parts, and 14 is new blade tip beam cap portion; The lengthening rear blade blade tip position view of the existing blade tip of cutting such as Fig. 9, Figure 10, Figure 11, Figure 12, shown in Figure 13, wherein 15 is new blade tip web, 16 is new and old blade overlap joint zone; The lengthening rear blade blade tip position view that does not cut existing blade tip is shown in figure 14.
For guaranteeing can basis 1, tower tube 2 and the cabin 6 etc. of wind power generating set not to be caused damage after the existing lengthened vanes, must confirm the length of lengthening section blade tip 4 and the Placement of taking through reasonable structural design and analysis.
The basic step of said lengthening wind electricity blade length method is following:
1, using positioning tool 7 will have blade 5 now installs, is fixed on blade rack 8 and/or the worktable;
2, the blade tip of said existing blade 5 is carried out polishing in the surface and/or the blade tip housing is cut and/or blocks, the cutting back keeps former blade web 9, and web 12 stretches out the sectional position;
3, use new blade tip housing mould and the new new blade tip housing 13 of blade tip web mould manufacturing and new blade tip web 15;
4, use positioning tool that new blade tip 4 lower shell bodys 13 and web 15 are positioned to former blade 5 corresponding positions; And guarantee that new and old blade beam cap 10 and 14 aligns, new and old blade shell lap width 16 is not less than 0.3 meter, is not less than 0.05 meter as if the lap width that has then new and old web splice width 12 of web splice and/or hand to stick with paste glass fibre, and does positioning mark;
5, remove the new blade tip lower shell body 13 and the web 15 of having good positioning; Be coated with 12 places, new and old web splice zone in the overlap joint zone 16 of new blade tip lower shell body 13 and old blade 5 and scrape binder 11, and carry out bonding according to the position location new blade tip lower shell body 13 and new blade tip web 15;
6, use hand to stick with paste the bonding angle 17 that the technology hand is stuck with paste leading edge and new and old blade link position, and use metallic conductor that new and old conducting system 3 is connected;
7, be coated with in the bonding position of needs and scrape binder, through matched moulds, back solidify, after the operation such as surface treatment (make blade surface smooth-going), the blade after obtaining extending.
The utility model increases by one section new blade tip 4 through the blade tip position to said existing blade 5 and realizes the lengthening to said existing wind electricity blade, and its main advantage is:
At first, be employed in one section new blade tip 4 of said existing blade 5 blade tip positions lengthening, can at utmost improve the aeroperformance of lengthening back wind electricity blade;
Secondly, can guarantee under the less relatively situation of said existing leaf weight increase, farthest to add linear leaf, and transformation lengthening technology is simple and easy to do, cost is lower;
Once more, increase by one section new blade tip, can improve the wind wheel wind sweeping area of wind power generating set, make that transforming the same unit annual electricity generating capacity in back increases about 5% through blade tip position to said existing blade.
Claims (8)
1. extended type blade of wind-driven generator; It is characterized in that; Said extended type blade of wind-driven generator comprises existing blade (5) part and one section new blade tip (4) part, and whole said extended type blade of wind-driven generator connects one section new blade tip (4) through the blade tip place at existing blade (5) to be realized.
2. extended type blade of wind-driven generator as claimed in claim 1 is characterized in that, said extended type blade of wind-driven generator comprises the existing blade of part, and the existing blade of said part is to block realization through the blade tip that will have blade (5) now.
3. extended type blade of wind-driven generator as claimed in claim 2; It is characterized in that; Said extended type blade of wind-driven generator comprises the web (9) and new web (15) of existing blade, and being connected of web of existing blade (9) and new web (15) is the bonding realization through binder (11) and/or glass fibre.
4. extended type blade of wind-driven generator as claimed in claim 1 is characterized in that, said extended type blade of wind-driven generator comprises all existing blade (5).
5. extended type blade of wind-driven generator as claimed in claim 4; It is characterized in that; Blade tip that said extended type blade of wind-driven generator comprises existing blade (5) and new web (15), and being connected of the blade tip of existing blade (5) and new web (15) be the bonding realization through binder (11) and/or glass fibre.
6. like the described extended type blade of wind-driven generator of one of claim 1 to 5; It is characterized in that; Said extended type blade of wind-driven generator comprises existing blade beam cap (10) and new blade tip beam cap (14), and existing blade beam cap (10) and newly blade tip beam cap (14) be connected the bonding realization that is through binder.
7. like the described extended type blade of wind-driven generator of one of claim 1 to 5; It is characterized in that; Said extended type blade of wind-driven generator comprises existing blade (5) and new blade tip housing (13), and existing blade (5) and new blade tip housing (13) be connected the bonding realization that is through binder.
8. according to claim 1 or claim 2 extended type blade of wind-driven generator; It is characterized in that; Said extended type blade of wind-driven generator comprises the conducting system of existing blade and the conducting system (3) of new blade tip, and existing blade conducting system is with newly being connected through the metallic conductor connection of conducting system (3) of blade tip realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200518750U CN202417811U (en) | 2012-02-17 | 2012-02-17 | Lengthened type wind driven generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200518750U CN202417811U (en) | 2012-02-17 | 2012-02-17 | Lengthened type wind driven generator blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417811U true CN202417811U (en) | 2012-09-05 |
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ID=46742582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200518750U Expired - Lifetime CN202417811U (en) | 2012-02-17 | 2012-02-17 | Lengthened type wind driven generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417811U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573563A (en) * | 2013-11-19 | 2014-02-12 | 北京可汗之风科技有限公司 | Method of beam cap connection for lengthening wind turbine generator blades |
| CN104033331A (en) * | 2014-06-06 | 2014-09-10 | 株洲时代新材料科技股份有限公司 | Method for designing wind power generation blade family |
| CN105545806A (en) * | 2016-02-24 | 2016-05-04 | 西安交通大学 | Three-dimensional flow centrifugal fan impeller blade structure |
-
2012
- 2012-02-17 CN CN2012200518750U patent/CN202417811U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573563A (en) * | 2013-11-19 | 2014-02-12 | 北京可汗之风科技有限公司 | Method of beam cap connection for lengthening wind turbine generator blades |
| CN103573563B (en) * | 2013-11-19 | 2016-08-17 | 北京可汗之风科技有限公司 | A kind of spar cap method of attachment lengthening blade of wind-driven generator |
| CN104033331A (en) * | 2014-06-06 | 2014-09-10 | 株洲时代新材料科技股份有限公司 | Method for designing wind power generation blade family |
| CN105545806A (en) * | 2016-02-24 | 2016-05-04 | 西安交通大学 | Three-dimensional flow centrifugal fan impeller blade structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |