CN203130364U - Fan device with adjustable blade length - Google Patents
Fan device with adjustable blade length Download PDFInfo
- Publication number
- CN203130364U CN203130364U CN2013201607370U CN201320160737U CN203130364U CN 203130364 U CN203130364 U CN 203130364U CN 2013201607370 U CN2013201607370 U CN 2013201607370U CN 201320160737 U CN201320160737 U CN 201320160737U CN 203130364 U CN203130364 U CN 203130364U
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- CN
- China
- Prior art keywords
- connecting plate
- extension
- blade
- blower fan
- adjustable vane
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The utility model relates to a fan blade device of the electric industry, in particular to a fan device with adjustable blade length. A fan hub is connected with a blade through an extension, and the extension is detachably connected with the blade and the fan hub respectively. One end of the extension is connected with the fan hub, and the other end of the extension is connected with the fixed end of the blade. The extension is formed by an inner drum and an outer drum which are in concentric sleeve structures. One end of the extension is provided with a second connection plate used for being connected with the fan hub, and the other end of the extension is provided with a third connection plate connected with the fixed end of the blade. The included angle formed between the second connection plate and the third connection plate is adjustable. Therefore, the air blowing area of an impeller is increased, blade installation angle optimizing is achieved and the effect of improving the generating capacity of a whole wind power plant is achieved.
Description
Technical field
The utility model relates to a kind of fan blade device of power industry, relates in particular to a kind of blower fan apparatus of adjustable vane length.
Background technique
Be positioned at that benevolence Bao Lige of Wulate Rear Banner of the Datang new energy Bayan nur company wind energy turbine set in Baya ur, NeiMengGu city Wulate Rear Banner match Wu Su town, golden wind 48/750 model unit is installed, and be incorporated into the power networks in August, 2008.By in October, 2012, each year the unit operation situation be respectively: annual mean wind speed 7.1m/s in 2008, generated energy 4,122 ten thousand kWh; Annual mean wind speed 7.11m/s in 2009, generated energy 9,626 ten thousand kWh; Annual mean wind speed 7.25m/s in 2010, generated energy 10,173 ten thousand kWh; Annual mean wind speed 5.86m/s in 2011, generated energy 7,211 ten thousand kWh; Annual mean wind speed 6.15m/s in 2012, generated energy 6,627 ten thousand kWh.Bigger from the annual fluctuation of the wind-resources situation at above data project scene; The generated energy of whole wind electric field also has been subjected to the influence of other factors except wind-resources simultaneously.
Because 750 units are for deciding oar Stall Type unit, the effective ways that power-performance promotes are less.At present, more effective method for improving is to increase vortex generator on the blade and adjust the blade angle degree.These two kinds of methods are optimized in back flag project.Because accounting is less frequently for back flag project high wind speed section wind, it is very little that established angle is further adjusted the power ascension effect that produces.At present, in reality repacking, adding the vortex generator power of the assembling unit, to promote amplitude also less.
Need and shortcoming the special the utility model that proposes based on above.
The model utility content
The utility model by a kind of blower fan apparatus of adjustable vane length, promotes the power of the assembling unit to greatest extent to increase the impeller wind sweeping area, to reach, thereby improves the purpose of the generated energy of whole wind electric field.
The technical solution of the utility model is: a kind of blower fan apparatus of adjustable vane length, it comprises, rack-mount axial fan hub, described axial fan hub is connected with blade by extension, and described extension removably is connected with axial fan hub with blade respectively.
Further, an end of described extension is connected with axial fan hub, and the other end is connected with the fixed end of blade.
Further, an end of described extension is provided with for second connecting plate that is connected with axial fan hub, and the symmetrical the other end is provided with the 3rd connecting plate that is connected for the vanes fixed end on the described extension.
Further, equidistant second connecting plate that is respectively arranged with a plurality of spaced sets and the 3rd connecting plate on the described extension.
Further, be respectively arranged with connecting through hole on described second connecting plate and the 3rd connecting plate.Be connected with connecting through hole is dismountable by the stud that arranges that matches respectively between described blade and the 3rd connecting plate, axial fan hub and second connecting plate.
Further, symmetrical two group of second connecting plate and the 3rd connecting plate of being provided with on the described extension.The connecting through hole center that arranges on described second connecting plate and corresponding group the 3rd connecting plate respectively and the connecting line angle between the extension center be set to α.
Further, described extension is made of inner core and urceolus, and described inner core is connected by first connecting plate with urceolus.
Further, the center of the connecting through hole center that arranges on the 3rd connecting plate and first connecting plate respectively and the angle of the connecting line between the extension center be set to β.
Further, described inner core and urceolus are set to the concentric locking collar barrel structure, the setting that matches of the shape of the anchor portion of described concentric sleeve and blade, equal angularly on the space between inner core and the urceolus be provided with a plurality of first connecting plates, one end and the inner core of described first connecting plate are fixedly connected, and the other end and the urceolus of described first connecting plate are fixedly connected.
The beneficial effects of the utility model are:
Prolong joint by in the middle of blade and wheel hub, increasing, when guaranteeing unit safety and changing the blade aeroperformance as small as possible, by increasing the impeller wind sweeping area, to reach the purpose that promotes the unit generated output.
By regulating the connecting through hole that arranges on second connecting plate and the 3rd connecting plate and the connecting line angle α between the extension center, realize optimizing the mounting point of blade angle degree, thereby reach the effect of the generated energy that improves the whole wind electric field.
By said apparatus, realized promoting to greatest extent the purpose of the power of the assembling unit, reached the effect that improves the generated energy of whole wind electric field.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of extension in the utility model.
Fig. 2 is the sectional view at A-A place among Fig. 1.
Fig. 3 is structural representation of the present utility model.
Description of symbols among the figure: 1-urceolus, 2-inner core, 3-the first connecting plate, 4-the second connecting plate, 5-the three connecting plate, 11-extension, 12-blade.
Embodiment
As depicted in figs. 1 and 2, present embodiment provides a kind of blade 12 length adjustment devices that are applied to blower fan, it is characterized in that: axial fan hub is connected with blade 12 by extension 11, and described extension 11 removably is connected with axial fan hub with blade 12 respectively.One end of described extension 11 is connected with axial fan hub, and the other end is connected with the fixed end of blade 12.One end of described extension 11 is provided with for second connecting plate 4 that is connected with axial fan hub, and the symmetrical the other end is provided with the 3rd connecting plate 5 that is connected for blade 12 fixed ends on the described extension 11.
As shown in Figure 1, in the present embodiment, described extension 11 is provided with two second connecting plates 4 of the relative extension symmetrical setting in 11 centers and two the 3rd connecting plates 5 of the relative extension symmetrical setting in 11 centers.Be respectively arranged with connecting through hole on described second connecting plate 4 and the 3rd connecting plate 5, be connected with connecting through hole is dismountable by the stud that arranges that matches between described blade 12 and the 3rd connecting plate 5, axial fan hub and second connecting plate 4.
As depicted in figs. 1 and 2, in the present embodiment, the connecting through hole center that arranges on described second connecting plate 4 and the 3rd connecting plate 5 and the connecting line angle between extension 11 centers are set to α.Described extension 11 is made of inner core 2 and urceolus 1, and described inner core 2 is connected by first connecting plate 3 with urceolus 1.In the present embodiment, described α preferably is set to 4.5 degree.
As shown in Figure 1, described inner core 2 is set to the concentric locking collar barrel structure with urceolus 1, the setting that matches of the shape of the anchor portion of described concentric sleeve and blade 12, and the space between inner core 2 and the urceolus 1 is provided with eight first connecting plates 3.In described first connecting plate 3 four are arranged on extension 11 side that is connected with blade 12, and four first connecting plates 3 are arranged on extension 11 side that is connected with axial fan hub in addition.First connecting plate 3 that described both sides arrange coincides is arranged on same angular position.The connecting through hole center that arranges on the 3rd connecting plate 5 and the center of first connecting plate 3 and the angle of the connecting line between extension 11 centers are set to β, and described β preferably is set to 49.5 degree.One end and the inner core 2 of described first connecting plate 3 are fixedly connected, and the other end of described first connecting plate 3 and urceolus 1 are fixedly connected.
By above-mentioned repacking, make blower fan no matter at strong wind, still the generated output during little wind all is significantly improved, show that according to top data No. 1 blower fan after repacking power curve under 4-17 rice wind speed has risen 13.74% than 2,3, No. 4 three typhoon machine average powers of not repacking 44kw that risen than the average power of 2,3,4 three typhoon machines of repacking not.Detailed data please see the following form:
From table as can be seen No. 1 blower fan install generated output behind the extension device additional, no matter all be significantly improved when when strong wind, still being little wind.
By being fixedly clamped mutually between bearing and the bearing, make the fixable end that is arranged on axle of Shaft drawer, thereby realized fixedly lift device, prevented Shaft drawer with spool between the effect of dropping situations appears, avoided the destruction to bearing.
Prolong joint by in the middle of blade and wheel hub, increasing, when guaranteeing unit safety and changing the blade aeroperformance as small as possible, by increasing the impeller wind sweeping area, to reach the purpose that promotes the unit generated output.
By regulating the connecting through hole that arranges on second connecting plate and the 3rd connecting plate and the connecting line angle α between the extension center, realize optimizing the mounting point of blade angle degree, thereby reach the effect of the generated energy that improves the whole wind electric field.
It should be noted that; above-mentioned specific embodiment only is exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in the protection domain of the present utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of this utility model, is not for restriction the utility model.Protection domain of the present utility model is limited by claim and equivalent thereof.
Claims (9)
1. the blower fan apparatus of an adjustable vane length, it comprises, rack-mount axial fan hub,
Be characterised in that: described axial fan hub is connected with blade (12) by extension (11), and described extension (11) removably is connected with axial fan hub with blade (12) respectively.
2. the blower fan apparatus of a kind of adjustable vane length according to claim 1, it is characterized in that: an end of described extension (11) is connected with axial fan hub, and the other end is connected with the fixed end of blade (12).
3. the blower fan apparatus of a kind of adjustable vane length according to claim 2, it is characterized in that: an end of described extension (11) is provided with for second connecting plate (4) that is connected with axial fan hub, and described extension (11) is gone up the symmetrical the other end and is provided with the 3rd connecting plate (5) that is connected for blade (12) fixed end.
4. the blower fan apparatus of a kind of adjustable vane length according to claim 3 is characterized in that: last equidistant second connecting plate (4) that is respectively arranged with a plurality of spaced sets and the 3rd connecting plate (5) of described extension (11).
5. the blower fan apparatus of a kind of adjustable vane length according to claim 4 is characterized in that: be respectively arranged with connecting through hole on described second connecting plate (4) and the 3rd connecting plate (5);
Between described blade (12) and the 3rd connecting plate (5), axial fan hub and second connecting plate (4) respectively the stud by the setting that matches be connected with connecting through hole is dismountable.
6. the blower fan apparatus of a kind of adjustable vane length according to claim 5 is characterized in that: described extension (11) is gone up symmetrical two group of second connecting plate (4) and the 3rd connecting plate (5) of being provided with;
Described second connecting plate (4) and corresponding group the 3rd connecting plate (5) are gone up the connecting through hole center that arranges respectively and the connecting line angle between extension (11) center is set to α.
7. the blower fan apparatus of a kind of adjustable vane length according to claim 1 is characterized in that: described extension (11) is made of inner core (2) and urceolus (1), and described inner core (2) is connected by first connecting plate (3) with urceolus (1).
8. according to the blower fan apparatus of claim 6 or 7 described a kind of adjustable vane length, it is characterized in that: the center of the connecting through hole center that arranges on the 3rd connecting plate and first connecting plate (3) respectively and the angle of the connecting line between extension (11) center be set to β.
9. the blower fan apparatus of a kind of adjustable vane length according to claim 7, it is characterized in that: described inner core (2) is set to the concentric locking collar barrel structure with urceolus (1), the setting that matches of the shape of the anchor portion of described concentric sleeve and blade (12), equal angular a plurality of first connecting plates (3) that are provided with on the space between inner core (2) and the urceolus (1), one end of described first connecting plate (3) and inner core (2) are fixedly connected, and the other end of described first connecting plate (3) and urceolus (1) are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201607370U CN203130364U (en) | 2013-04-03 | 2013-04-03 | Fan device with adjustable blade length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201607370U CN203130364U (en) | 2013-04-03 | 2013-04-03 | Fan device with adjustable blade length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130364U true CN203130364U (en) | 2013-08-14 |
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ID=48938352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201607370U Expired - Fee Related CN203130364U (en) | 2013-04-03 | 2013-04-03 | Fan device with adjustable blade length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041581A (en) * | 2015-05-26 | 2015-11-11 | 吕雪萍 | Draught fan for disassembling and assembling lengthened blades to improve efficiency |
| CN109611269A (en) * | 2018-12-29 | 2019-04-12 | 华能大理风力发电有限公司 | A kind of device and Wind turbines lengthened for wind power generation unit blade |
-
2013
- 2013-04-03 CN CN2013201607370U patent/CN203130364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041581A (en) * | 2015-05-26 | 2015-11-11 | 吕雪萍 | Draught fan for disassembling and assembling lengthened blades to improve efficiency |
| CN109611269A (en) * | 2018-12-29 | 2019-04-12 | 华能大理风力发电有限公司 | A kind of device and Wind turbines lengthened for wind power generation unit blade |
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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 |
Granted publication date: 20130814 Termination date: 20200403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |