CN103174600A - Fan blade - Google Patents
Fan blade Download PDFInfo
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- CN103174600A CN103174600A CN2011104350104A CN201110435010A CN103174600A CN 103174600 A CN103174600 A CN 103174600A CN 2011104350104 A CN2011104350104 A CN 2011104350104A CN 201110435010 A CN201110435010 A CN 201110435010A CN 103174600 A CN103174600 A CN 103174600A
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- fan blade
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Abstract
The invention provides a fan blade which comprises a sealed fan shell body. The fan shell body is formed by an upper shell and a lower shell in a butt joint mode. A shearing resistance web is arranged inside a cavity formed by the fan shell body. The top end and the bottom end of the shearing resistance web are respectively and fixedly connected with a beam cap on the upper shell and a beam cap on the lower shell. A connecting body is arranged between the shearing resistance web and the rear edge of the fan blade inside the cavity, and the connecting body is respectively and fixedly connected with the upper shell and the lower shell. The fan blade improves the bulking resistance capacity of the rear edge of the fan blade, the tackless phenomenon at the position of the rear edge of the fan blade is effectively avoided through fixed connection between the upper shell and the connecting body and the fixed connection between the lower shell and the connecting body, failures caused by insufficient stability of the rear edge of the fan blade are prevented, and therefore normal power generation of a wind turbine generator is guaranteed.
Description
Technical field
The present invention relates to the wind power generating set equipment manufacturing technology, relate in particular to a kind of fan blade.
Background technique
Wind-power electricity generation is the effective way that realizes energy-saving and emission-reduction.Fan blade is one of core component of blower fan unit equipment.Simultaneously, the main load of blower fan is all rotated windward by blade and is produced.So the structure of fan blade has directly determined the overall performance of blower fan.
Fig. 1 is the cross-sectional configuration schematic diagram of the fan blade of prior art.As shown in Figure 1, the fan blade of prior art comprises the Blower Housing 10 of a sealing that is formed by upper casing 101 and lower casing 102 docking, consist of the upper casing 101 of Blower Housing 10 and the outer surface of lower shell body 102 and be respectively suction surface and pressure side, the tip that suction surface and pressure side engage forms trailing edge 103, and the other end relative with trailing edge 103 is leading edge 104; Be provided with shear web 2 in the cavity that Blower Housing 10 forms, the top of shear web 2 and bottom are fixedly connected with beam cap on lower casing 102 with upper casing 101 respectively, and upper casing 101 and lower casing 102 respectively by the inside panel 12 of the exterior skin 11 of outer surface and internal surface and be filled in inside panel and exterior skin between PVC＝polyvinyl chloride (PVC) foam 13, the exterior skin 11 of upper casing 101 and the exterior skin 11 of lower casing 102 are fixed together by thermoset forming, and the inside panel 12 of upper casing and 12 of the inside panels of lower casing bond together by adhesive glue.
This fan blade structure of the prior art can be applicable to generating capacity at the wind-powered electricity generation unit of multikilowatt, but along with the raising of the generating capacity of wind-powered electricity generation unit, the generating capacity of a lot of wind-powered electricity generation units has reached MW class, its length of blade increases greatly, and the load that is subject to is also larger; Therefore, when this fan blade structure of the prior art used in the wind-powered electricity generation unit of MW class, because the stability of fan blade trailing edge is inadequate, the flexing that the trailing edge of fan blade often occurs lost efficacy; In addition, between the inside panel of trailing edge place upper casing and the inside panel of lower casing the abutting edge the phenomenon of coming unglued also often appears, thereby cause the damage of fan blade, affect the normal power generation of wind-powered electricity generation unit.
Summary of the invention
For overcoming the defects of prior art, the present invention is to provide a kind of fan blade, comprise: the Blower Housing that is docked a sealing that forms by upper casing and lower casing, be provided with shear web in the inner cavity that forms of described Blower Housing, the top of shear web and bottom are fixedly connected with beam cap on lower casing with described upper casing respectively, be provided with a connecting body in described cavity and between the trailing edge of described shear web and described fan blade, described connecting body is fixedly connected with lower casing with described upper casing respectively.
Fan blade provided by the invention, by being fixedly installed on the connecting body between upper casing and lower casing, improved the structural behaviour in wind-powered electricity generation unit apoplexy machine blade when carrying of MW class, improved the anti-flexion capabilities of fan blade trailing edge, and by increasing being fixedly connected with between upper casing and connecting body and lower casing and connecting body, effectively avoided the trailing edge place of the fan blade phenomenon of coming unglued, prevented the inefficacy that blade causes not because of trailing edge stability, thereby guaranteed the normal power generation of wind-powered electricity generation unit.
Description of drawings
Fig. 1 is the cross-sectional configuration schematic diagram of the fan blade of prior art;
Fig. 2 is fan blade embodiment's of the present invention cross-sectional configuration schematic diagram.
Reference character:
The 10-Blower Housing; The 101-upper casing; The 102-lower casing;
The 103-trailing edge; The 104-leading edge; The 2-shear web;
The 11-exterior skin; The 12-inside panel; The 13-polyvinyl chloride foam;
The 4-connecting body.
Embodiment
Fig. 2 is fan blade embodiment's of the present invention cross-sectional configuration schematic diagram.Please refer to Fig. 2, the present embodiment provides a kind of fan blade, comprise: dock the Blower Housing 10 of a sealing that forms by upper casing 101 and lower casing 102, be provided with shear web 2 in the inner cavity that forms of Blower Housing 10, the top of shear web 2 and bottom are fixedly connected with beam cap on lower casing 102 with upper casing 101 respectively, be provided with a connecting body 4 in cavity and between the trailing edge 103 of shear web 2 and fan blade, connecting body 4 is fixedly connected with lower casing 102 with upper casing 101 respectively.
Particularly, upper casing 101 and lower casing 102 docking can form the Blower Housing 10 of sealing, and upper casing 101 docks the tip that forms with lower casing 102 be the trailing edge 103 of fan blade, and relative with trailing edge 103, a more level and smooth end is leading edge 104; The beam cap can fixedly be embedded respectively at upper casing 101 and lower casing 102 and consist of on the internal surface of Blower Housing internal cavities, and two shear webs 2 can be fixedly installed on respectively between two beam caps.Connecting body 4 can be fixedly connected near between the upper casing 101 and lower casing 102 of trailing edge, wherein, connecting body 4 can adopt the light material of quality to make, for example, can adopt PVC＝polyvinyl chloride (PVC) foam to make connecting body 4, but the concrete shape to connecting body 4 is not construed as limiting, and is connected with the bottom to be connected with lower casing to firmly fix to be connected with upper casing 101 respectively and gets final product in the top that only needs to guarantee connecting body 4.In addition, connecting body 4 also can be at least two, is fixedly connected on respectively on upper casing 101 and lower casing 102, with the force-bearing situation of further optimization Blower Housing.The fan blade that the present embodiment provides, setting by connecting body, can improve the stability of trailing edge of the wind-powered electricity generation unit apoplexy machine blade of MW class, strengthened the anti-flexion capabilities of the trailing edge of fan blade, and further strengthened the connection between upper casing and lower casing, effectively avoided the generation of the phenomenon of coming unglued at the trailing edge place of fan blade, guaranteed the normal operation of blade, thereby guaranteed the normal power generation of wind-powered electricity generation unit.
Further, connecting body 4 can be PVC＝polyvinyl chloride (PVC) plate or cork wood plate, be about to connecting body 4 and be processed into long plate shape, and this long slab is complementary towards the surface of upper casing 101 and the shape of internal surface in this position of upper casing, this long slab is complementary, so that the upper surface of connecting body 4 and lower surface can be respectively more firmly linked together with the internal surface of upper casing and lower casing towards the lower surface of lower casing 102 and the shape of internal surface in this position of lower casing 102.
Further, upper casing 101 and lower casing 102 comprise respectively inside panel 12, exterior skin 11 and be filled in inside panel 12 and exterior skin 11 between PVC＝polyvinyl chloride (PVC) foam 13; The upper surface of connecting body 4 and lower surface are bonded on the inside panel that forms upper casing 101 and lower casing 102 by adhesive glue respectively.Therefore, in the manufacturing process of fan blade in the present embodiment, can be before with upper casing 101 and lower casing 102 docking, be bonded in connecting body 4 on the inside panel of upper casing 101 by adhesive glue, and coat adhesive glue on another surface that is used for being connected with lower casing 102 of connecting body 4, like this, with after lower casing 102 matched moulds dock, the upper and lower surface of connecting body 4 just can be bonded in respectively on upper casing 101 and lower casing 102 when upper casing 101.Fix the connection connecting body by adhesive glue is bonding, connect reliable and processing technology also very simple, be conducive to control the manufacture cost of fan blade.
From the results of carrying out respectively to the fan blade of fan blade of the prior art and the present embodiment, be that 2630mm, thickness are 789mm, the wide 650mm of girder for chord length, and the connecting body width is the fan blade of 300mm, its anti-flexing safety coefficient has improved 13.5%, shearing between shear web and covering has reduced 3.4%, the tip distortion of fan blade has reduced 2%, and simultaneously, the weight of fan blade has only increased by 0.25%.The fan blade that the clear explanation the present embodiment of this result provides is in the situation that have no significant effect deadweight, and stressed, distortion and anti-buckling stability during the fan blade stand under load all have clear improvement; The fan blade structure of the present embodiment significantly improves the structural behaviour of fan blade.
It should be noted that at last: above each embodiment is not intended to limit only in order to technological scheme of the present invention to be described; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technological scheme.
Claims (4)
1. fan blade, comprise: the Blower Housing that is docked a sealing that forms by upper casing and lower casing, be provided with shear web in the inner cavity that forms of described Blower Housing, the top of shear web and bottom are fixedly connected with beam cap on lower casing with described upper casing respectively, it is characterized in that, be provided with a connecting body in described cavity and between the trailing edge of described shear web and described fan blade, described connecting body is fixedly connected with lower casing with described upper casing respectively.
2. fan blade according to claim 1, is characterized in that, described connecting body is polyvinyl chloride panel or cork wood plate.
3. fan blade according to claim 2, is characterized in that, described upper casing and lower casing comprise respectively inside panel, exterior skin and be filled in polyvinyl chloride foam between described inside panel and exterior skin; The upper surface of described connecting body and lower surface are bonded on the inside panel that forms described upper casing and lower casing by adhesive glue respectively.
4. according to claim 1 or 3 described fan blades, is characterized in that, described connecting body is at least two, is fixedly connected on respectively on described upper casing and lower casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104350104A CN103174600A (en) | 2011-12-22 | 2011-12-22 | Fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104350104A CN103174600A (en) | 2011-12-22 | 2011-12-22 | Fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174600A true CN103174600A (en) | 2013-06-26 |
Family
ID=48634696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104350104A Pending CN103174600A (en) | 2011-12-22 | 2011-12-22 | Fan blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN103174600A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927452A (en) * | 2015-11-09 | 2016-09-07 | 于保琼 | Gate type wind energy or water energy power impeller |
| CN106050552A (en) * | 2016-07-18 | 2016-10-26 | 国电联合动力技术有限公司 | Fan blade capable of resisting to bending and wind driven generator containing fan blade |
| CN107636303A (en) * | 2015-05-28 | 2018-01-26 | Lm Wp 专利控股有限公司 | Wind turbine blade with trailing edge compartment |
| CN114580247A (en) * | 2022-04-12 | 2022-06-03 | 中国科学院工程热物理研究所 | Design method of anti-buckling reinforcing structure of horizontal shaft wind turbine blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955458A (en) * | 2005-10-29 | 2007-05-02 | 诺德克斯能源有限公司 | Rotor blade for a wind turbine |
| CN201165932Y (en) * | 2008-03-20 | 2008-12-17 | 中航惠腾风电设备股份有限公司 | Large-scale wind wheel blade double-girder type structure |
| CN101813057A (en) * | 2010-04-16 | 2010-08-25 | 南京工业大学 | Megawatt wind blade with cabin ribs |
| CN101825057A (en) * | 2009-02-20 | 2010-09-08 | 通用电气公司 | The improved beam cap that is used for wind turbine blade |
| CN101876293A (en) * | 2009-05-01 | 2010-11-03 | 通用电气公司 | Wind turbine blade with prefabricated leading edge segments |
| WO2011077545A1 (en) * | 2009-12-25 | 2011-06-30 | 三菱重工業株式会社 | Windmill rotary vane |
-
2011
- 2011-12-22 CN CN2011104350104A patent/CN103174600A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955458A (en) * | 2005-10-29 | 2007-05-02 | 诺德克斯能源有限公司 | Rotor blade for a wind turbine |
| CN201165932Y (en) * | 2008-03-20 | 2008-12-17 | 中航惠腾风电设备股份有限公司 | Large-scale wind wheel blade double-girder type structure |
| CN101825057A (en) * | 2009-02-20 | 2010-09-08 | 通用电气公司 | The improved beam cap that is used for wind turbine blade |
| CN101876293A (en) * | 2009-05-01 | 2010-11-03 | 通用电气公司 | Wind turbine blade with prefabricated leading edge segments |
| WO2011077545A1 (en) * | 2009-12-25 | 2011-06-30 | 三菱重工業株式会社 | Windmill rotary vane |
| CN101813057A (en) * | 2010-04-16 | 2010-08-25 | 南京工业大学 | Megawatt wind blade with cabin ribs |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636303A (en) * | 2015-05-28 | 2018-01-26 | Lm Wp 专利控股有限公司 | Wind turbine blade with trailing edge compartment |
| CN105927452A (en) * | 2015-11-09 | 2016-09-07 | 于保琼 | Gate type wind energy or water energy power impeller |
| CN106050552A (en) * | 2016-07-18 | 2016-10-26 | 国电联合动力技术有限公司 | Fan blade capable of resisting to bending and wind driven generator containing fan blade |
| CN114580247A (en) * | 2022-04-12 | 2022-06-03 | 中国科学院工程热物理研究所 | Design method of anti-buckling reinforcing structure of horizontal shaft wind turbine blade |
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Application publication date: 20130626 |