CN102493923A - Wind generating set and method for shielding gap thereof - Google Patents
Wind generating set and method for shielding gap thereof Download PDFInfo
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- CN102493923A CN102493923A CN2011103795609A CN201110379560A CN102493923A CN 102493923 A CN102493923 A CN 102493923A CN 2011103795609 A CN2011103795609 A CN 2011103795609A CN 201110379560 A CN201110379560 A CN 201110379560A CN 102493923 A CN102493923 A CN 102493923A
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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 invention provides a method for shielding a gap of a wind generating set. The gap is arranged at a joint of a first part that air flow passes through firstly and a second part that the air flow passes through sequentially; a flow guiding part is arranged at a position on the first part, near the gap and in the upwind direction of the gap; the glow guiding part extends along a direction approximately vertical to the joint of the first part and the second part and at least shields the part of the gap, which is in the windward direction. The invention also provides a wind generating set with the method. The method for shielding the gap of the wind generating set provided by the invention can be used for effectively preventing outside impurities from entering inside the wind generating set through the gap under the action of local high-pressure fluid, and thus, internal equipment of the wind generating set is effectively protected, and the method is simple and feasible and lower in cost.
Description
Technical field
The present invention relates to wind generating technology, relate in particular to a kind of wind power generating set that is used to cover the method in wind power generating set gap and uses this method.
Background technique
Wind power generating set is installed in the wind-resources abundant area usually, but the common environment in these areas is more abominable, is generally the area of rainy water, sand and dust or salt fog.Owing to have position, more gap in the wind power generating set; Especially rotatable connecting portion; For example: blade and air guide sleeve junction, air guide sleeve and generator junction or air guide sleeve and engine room cover junction, tower tube and engine room cover junction; Get into wind power generating set inside if contain the air of impurity via above-mentioned gap, will cause damage the equipment of wind power generating set inside.In order to prevent that the air that contains impurity from getting into generator inside via above-mentioned gap, need seal each position, gap of wind power generating set.Encapsulating method commonly used at present mainly contains following several kinds: the size that 1) reduces the gap; 2) adopt mechanical labyrinth design to increase air flow resistance; 3) install such as rubber movable sealing structures such as rubber hairbrush, rubber ring, rubber hand-type seal rings at the position, gap.Though these methods can play certain seal action, every kind of method all has shortcoming separately, makes it and is not suitable for the sealing at position, wind power generating set gap.For example, not only sealing effect is relatively poor to reduce gap length merely, and has increased the manufacturing precision and the difficulty of each parts of wind power generating set; Adopt the design of mechanical labyrinth then not only to increase the processing technology difficulty, but also can increase manufacturing cost; Though and employing rubber movable sealing structure can reduce the intrusion of sand and dust, salt fog to a certain extent, still, cause the motive sealing effect to become worse and worse owing to wearing and tearing along with the accumulation of fan operation time.
Summary of the invention
The present invention is devoted to solve the problems referred to above that existing technology exists; For this reason; The present invention provides a kind of method that is used to cover the wind power generating set gap; It can effectively prevent under the effect of partial high pressure fluid, to get into wind power generating set inside at introduced contaminants, thereby effectively protects the wind power generating set internal unit, and this method is simple, cost is lower.
For solving the problems of the technologies described above; The present invention also provides a kind of wind power generating set; It uses the above-mentioned method that is used to cover the wind power generating set gap provided by the invention, thereby can prevent effectively that introduced contaminants from getting into wind power generating set inside through the wind power generating set place of being rotationally connected under the effect of partial high pressure fluid, and internal unit is caused damage; And then the rate of fault of reduction wind-force wind power generating set, and prolong the working life of wind power generating set.
For this reason; The present invention also provides a kind of method that is used to cover the wind power generating set gap; Said gap is the gap of air-flow first parts of at first flowing through and the second parts junction of flowing through subsequently; On said first parts, near said gap and the position that is positioned at this gap upwind diversion component is set, said diversion component comprises fixed end and free end, and said fixed end is fixed on said first parts; And extend to said free end along the direction that is approximately perpendicular to said first parts and the second parts junction plane, and said diversion component covers the part of said gap location in the direction of facining the wind at least.
Wherein, the shape of the shape of said diversion component and said second parts is suitable, and the free end bending of said diversion component is attached on said second parts under airflow acting force.
Wherein, the be projected as central angle of said diversion component on said first parts and the second parts junction plane spent arcs, semicircle or circular greater than 120.
Wherein, said diversion component is concave curved surface shape, tubular or " bowl " shape.
Wherein, the axial dimension of said diversion component is 0.5 meter to 2 meters.
Wherein, said diversion component is processed by rigid material, elastic material, and perhaps said diversion component is processed by elastic material near free-ended part, is processed by rigid material away from free-ended part.
As another kind of technological scheme of the present invention, the present invention also provides a kind of wind power generating set, and it adopts the above-mentioned method that is used to cover the wind power generating set gap provided by the invention to cover the gap of this wind power generating set.
Wherein, said gap comprises the gap of gap, engine room cover and tower tube junction of gap, air guide sleeve and generator set or the engine room cover junction of blade and air guide sleeve junction.
Wherein, Be provided with diversion component near blade and gap, air guide sleeve junction and the position that is positioned at direction on this gap on the said air guide sleeve; Said diversion component extends along the blade bearing of trend; And the shape of shape and blade is suitable, and the free end of this diversion component can be attached on the blade under the air-flow effect.
Wherein, at said air guide sleeve end diversion component is set, this diversion component is along the direction extension perpendicular to air guide sleeve and generator or engine room cover mating face, and the end-rings of this diversion component covers this windward side around the windward side of generator or engine room cover.
Wherein, Diversion component is arranged near engine room cover and gap, tower tube junction and the position that is positioned at direction on this gap water conservancy diversion being set on the said engine room cover; Said diversion component to extend below and shape and tower barrel shape suitable, the free end of this diversion component under the air-flow effect can attach with the tower tube on.
The present invention has following beneficial effect:
The method that is used to cover the wind power generating set gap provided by the invention; Its direction position on said gap is provided with diversion component; And this diversion component covers the gap at least and is in the part of wind direction down with the wind; Thereby can prevent that effectively introduced contaminants from getting into wind power generating set inside via this gap under the effect of partial high pressure fluid, thereby effectively protect the wind power generating set internal unit being in the gap and the air flow partition of direction down with the wind.In addition, this method is simple and cost is lower, and cover in the gap that is highly suitable for wind power generating set.
In a kind of preferred implementation; The free end of said diversion component can be attached under the air-flow effect wherein on the parts; Thereby will being in down with the wind, the gap and the air-flow of direction cut off fully; Prevent that better introduced contaminants from getting into wind power generating set inside via this gap under the effect of partial high pressure fluid, and then effectively protect the wind power generating set internal unit.
Wind power generating set provided by the invention; Because it is provided with diversion component in the upwind position near the gap; And this diversion component covers the gap at least and is in the part of wind direction down with the wind; Therefore can prevent that effectively introduced contaminants from getting into wind power generating set inside via this gap under the effect of partial high pressure fluid, thereby improve the sealing effect in wind power generating set gap being in the gap and the air flow partition of direction down with the wind; Effective protection wind power generating set internal unit improves the working life of wind power generating set and reduces the rate of fault of wind power generating set.
Description of drawings
Fig. 1 is the method application schematic representation that is used to cover the wind power generating set gap provided by the invention;
The partial enlarged drawing that Fig. 2 a locates for " C " among Fig. 1;
Fig. 2 b is the sectional view of Fig. 2 a;
Fig. 2 c is another sectional view of Fig. 2 a;
The partial enlarged drawing that Fig. 3 locates for " D " among Fig. 1;
Fig. 4 a locates partial enlarged drawing for " E " among Fig. 1;
Fig. 4 b is the sectional view of Fig. 4 a;
Fig. 4 c is another sectional view of Fig. 4 a.
Embodiment
For making those skilled in the art person understand technological scheme of the present invention better, method and the wind power generating set that is used to cover the wind power generating set gap provided by the invention is elaborated below in conjunction with accompanying drawing.
The method that is used to cover the wind power generating set gap provided by the invention; Be used to cover the gap of first parts and the second parts junction, wherein, first parts are the parts that air-flow is at first flowed through; Second parts are the parts that air-flow is flowed through subsequently; Its core concept is being for being provided with diversion component near this gap and the position that is positioned at direction on this gap on first parts, and this diversion component is extended along the direction that is approximately perpendicular to first parts and the second part bonding face, and makes this diversion component can cover the gap at least to be in the part of direction down with the wind; Thereby make this gap and air flow partition, reach the purpose of covering the gap.Wherein, the last direction in gap refers to that side of gap that air-flow arrives earlier, and in Fig. 1, arrow is depicted as airflow direction, and the last direction in three gaps shown in the figure all is positioned at the left side in gap.
See also Fig. 1 to Fig. 2 c, it is the first embodiment's schematic representation that is used to cover the method in wind power generating set gap provided by the invention.Such as Fig. 1 and Fig. 2 a knowledge, in the present embodiment, the gap that need cover is the gap of air guide sleeve 1 and blade 4 junctions.In order to cover this gap, near this gap and the position that is positioned at this gap upwind diversion component is set at air guide sleeve 1, its windward side around blade becomes semicircle to be fixed on the air guide sleeve 1.This diversion component comprises water conservancy diversion base part 2 and water conservancy diversion main part 3, and wherein, water conservancy diversion base part 2 is fixed on the air guide sleeve 1, and it has certain stiffness; Water conservancy diversion main part 3 is connected with water conservancy diversion base part 2, and extends along the blade bearing of trend, and it is processed by the composite material (like rubber material) that has the high deformation ability and have runback potential energy power.Diversion component initial position state is shown in Fig. 2 b; When wind power generating set brings into operation; Because diversion component is fixed on the place, windward side of air guide sleeve 1; Water conservancy diversion main part 3 deforms under the effect of wind-force, is blown to blade 4 and makes water conservancy diversion main part 3 free ends (that is end) and blade 4 windward sides be in the applying contact condition.Shown in Fig. 2 c; Because water conservancy diversion main part 3 is attached on the blade 4; Thereby make air guide sleeve 1 and gap, blade 4 junction be in the part and the air flow partition of wind direction down with the wind; Stoped the air of zone of high pressure, blade 4 root windward side inner via the gap inflow unit of air guide sleeve 1 and blade 4 junctions, therefore avoided containing the air entering blower fan inside of impurity and internal unit being caused damage along blade 4.In practical application, in order to ensure the bridging effect of diversion component to the gap, the axial dimension of the diversion component direction of air guide sleeve and blade junction plane (that is, perpendicular to) is preferably 0.5 meter 2 meters.
Need explain to such an extent that be, in practical application, the sectional shape of diversion component; Promptly; The projection of shape of diversion component on blade and air guide sleeve mating face, and be confined to semicircle, it can covering the part that the gap is in the direction of facining the wind, as long as it satisfy; For example can be the arc of round angle greater than 120 degree, perhaps circular.In addition, diversion component also can be processed by elastic material entirely, and preferably, the elasticity of diversion component is along increasing gradually to the free end direction, and is promptly bigger near free-ended part elasticity, and less near the part elasticity of air guide sleeve or root of blade.
See also Fig. 1 and Fig. 3, it is the second embodiment's schematic representation that is used to cover the method in wind power generating set gap provided by the invention.Such as Fig. 1 and Fig. 3 knowledge, in the present embodiment, the gap that need cover is the gap of air guide sleeve 1 and generator 6 junctions.In order to cover this gap, diversion component 5 is set at the end of air guide sleeve 1.Diversion component 5 is " bowl " shape; And its opening is greater than generator 6 ends; Thereby can generator " parcel " be lived around 1 one weeks of air guide sleeve; Stop generator 6 windward side air to get into wind-driven generator inside, play the effect of protection generator 6 and air guide sleeve 1 internal unit via the gap of air guide sleeve 1 and generator 6 junctions.In order to make diversion component 5 and generator 6 keep certain distances, can under wind, be out of shape and contact with generator 6, diversion component 5 is processed by rigid material entirely in the present embodiment, thereby can avoid contacting the rotation that influences generator 6 because of being out of shape with generator 6.
Need to prove; The water conservancy diversion base part of diversion component and water conservancy diversion main part are in practical application in the present embodiment; The shape of diversion component is not limited to employed among the embodiment " bowl " shape; Fang Tizhuan in for example can adopting as long as it can be lived generator or engine room cover " parcel " around one week of air guide sleeve, gets final product the gap partition of air-flow and air guide sleeve and generator or engine room cover junction.
See also Fig. 1 and Fig. 4 a to Fig. 4 c, it is the 3rd embodiment's schematic representation that is used to cover the method in wind power generating set gap provided by the invention.Such as Fig. 1 and Fig. 4 a knowledge, in the present embodiment, the gap that need cover is the gap of engine room cover 7 and tower tube 10 junctions.In order to cover this gap, near this gap and the upwind position that is positioned at this gap diversion component is set in engine room cover 7, its windward side around tower tube 10 becomes semicircle to be fixed on the engine room cover 7.This diversion component comprises water conservancy diversion base part 8 and water conservancy diversion main part 9, and wherein, water conservancy diversion base part 8 is fixed on the engine room cover 7, and it is processed by rigid material, has certain stiffness; Water conservancy diversion main part 9 is connected with water conservancy diversion base part 8 and to extension, and it is processed by the composite material (like rubber material) that has the high deformation ability and have runback potential energy power.Flow guide device initial position state is shown in figure Fig. 4 b; When wind power generating set brings into operation,, be positioned at the place, windward side at tower tube 10 tops because diversion component is fixed on the engine room cover 7; Water conservancy diversion main part 9 deforms under the effect of wind-force; Be blown to tower tube 10, make water conservancy diversion main part 9 free ends (that is end) and tower tube head-on wind be in the applying contact condition.Shown in Fig. 4 c; Because; Water conservancy diversion main part 9 free ends are attached on the tower tube 10; Thereby the gap and the air-flow of tower tube 10 and engine room cover 7 junctions are cut off fully, stoped the air of zone of high pressure, windward side, tower tube 10 top inner, therefore avoided containing the air entering blower fan inside of impurity and internal unit being caused damage via the gap entering generator of tower tube 10 and engine room cover 7 junctions.
Need explain to such an extent that be, similar with first embodiment of the invention in practical application, the sectional shape of diversion component can be the arc of round angle greater than 120 degree, and is perhaps circular; And diversion component also can be processed by elastic material entirely, and preferably, the elasticity of diversion component is along increasing gradually to the free end direction, and is promptly bigger near free-ended part elasticity, and less near the part elasticity of air guide sleeve or root of blade.
What also need explain is; Though the method that is used to cover the wind power generating set gap provided by the invention is described with above-mentioned three embodiments; But in practical application; This method can be applicable to cover the gap at other positions of wind power generating set equally, and the shape of diversion component also is not limited to above-mentioned concave curved surface shape, tubular or " bowl " shape.For diversion component can be attached on the wherein parts that form the gap, the shape of diversion component need be suitable with the shape of these parts, that is, when this parts cross section was circle, the cross section of diversion component can be arc, semicircle or circular; When this parts cross section when being square, the cross section of diversion component can be square half the or square.
As another kind of technological scheme of the present invention; The present invention also provides a kind of wind power generating set; It adopts the above-mentioned method that is used to cover the wind power generating set gap provided by the invention to cover the gap of this wind power generating set, and said gap comprises the gap of gap, engine room cover and tower tube junction of gap, air guide sleeve and generator set or the engine room cover junction of blade and air guide sleeve junction.Particularly; Be provided with diversion component near blade and gap, air guide sleeve junction and the position that is positioned at direction on this gap on the said air guide sleeve; Said diversion component is suitable along the shape of the extension of blade bearing of trend and shape and blade; The free end of this diversion component can be attached on the blade under the air-flow effect, and the structure of diversion component is identical with the structure of diversion component in the first embodiment of the invention here.At said air guide sleeve end diversion component is set; This diversion component extends along the direction perpendicular to air guide sleeve and generator or engine room cover mating face; And the end-rings of this diversion component is around the windward side of generator or engine room cover and this windward side is covered;, the structure of diversion component is identical with the structure of diversion component in the second embodiment of the invention here.On said engine room cover, water conservancy diversion is set diversion component is arranged near engine room cover and gap, tower tube junction and the position that is positioned at this gap upwind; Said diversion component to extend below and shape and tower barrel shape suitable; The free end of this diversion component under the air-flow effect can attach with the tower tube on, the structure of diversion component is identical with the structure of diversion component in the third embodiment of the invention here.
It is understandable that above mode of execution only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For the one of ordinary skilled in the art, under the situation that does not break away from spirit of the present invention and essence, can make various modification and improvement, these modification also are regarded as protection scope of the present invention with improving.
Claims (11)
1. method that is used to cover the wind power generating set gap; Said gap is the gap of air-flow first parts of at first flowing through and the second parts junction of flowing through subsequently; It is characterized in that; On said first parts, near said gap and the position that is positioned at direction on this gap diversion component is set, said diversion component comprises fixed end and free end, and said fixed end is fixed on said first parts; And extend to said free end along the direction that is approximately perpendicular to said first parts and the second parts junction plane, and said diversion component covers the part of said gap location in the direction of facining the wind at least.
2. the method that is used to cover the wind power generating set gap as claimed in claim 1; It is characterized in that; The shape of the shape of said diversion component and said second parts is suitable, and is attached on said second parts in the free end bending of said diversion component under the air-flow effect.
3. according to claim 1 or claim 2 the method that is used to cover the wind power generating set gap is characterized in that, said diversion component is projected as central angle greater than 120 degree arcs, semicircle or circular on said first parts and the second parts junction plane.
4. according to claim 1 or claim 2 the method that is used to cover the wind power generating set gap is characterized in that said diversion component is concave curved surface shape, tubular or " bowl " shape.
5. according to claim 1 or claim 2 the method that is used to cover the wind power generating set gap is characterized in that the axial dimension of said diversion component is 0.5 meter to 2 meters.
6. the method that is used to cover the wind power generating set gap as claimed in claim 1; It is characterized in that; Said diversion component is processed by rigid material or elastic material, and perhaps said diversion component is processed by elastic material near free-ended part, is processed by rigid material away from free-ended part.
7. a wind power generating set is characterized in that, adopts the gap of covering this wind power generating set like any described method that is used to cover the wind power generating set gap of claim 1-6.
8. wind power generating set as claimed in claim 7 is characterized in that, said gap comprises the gap of gap, engine room cover and tower tube junction of gap, air guide sleeve and generator or the engine room cover junction of blade and air guide sleeve junction.
9. wind power generating set as claimed in claim 8; It is characterized in that; Be provided with diversion component near blade and gap, air guide sleeve junction and the position that is positioned at direction on this gap on the said air guide sleeve; Said diversion component is suitable along the shape of the extension of blade bearing of trend and shape and blade, and the free end of this diversion component can be attached on the blade under the air-flow effect.
10. wind power generating set as claimed in claim 8; It is characterized in that; At said air guide sleeve end diversion component is set; This diversion component is along the direction extension perpendicular to air guide sleeve and generator or engine room cover mating face, and the end-rings of this diversion component covers this windward side around the windward side of generator or engine room cover.
11. wind power generating set as claimed in claim 8; It is characterized in that; Diversion component is arranged near engine room cover and gap, tower tube junction and the position that is positioned at direction on this gap water conservancy diversion being set on the said engine room cover; Said diversion component to extend below and shape and tower barrel shape suitable, the free end of this diversion component under the air-flow effect can attach with the tower tube on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379560.9A CN102493923B (en) | 2011-11-18 | 2011-11-18 | Wind generating set and method for shielding gap thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379560.9A CN102493923B (en) | 2011-11-18 | 2011-11-18 | Wind generating set and method for shielding gap thereof |
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| Publication Number | Publication Date |
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| CN102493923A true CN102493923A (en) | 2012-06-13 |
| CN102493923B CN102493923B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110379560.9A Active CN102493923B (en) | 2011-11-18 | 2011-11-18 | Wind generating set and method for shielding gap thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734086A (en) * | 2012-06-29 | 2012-10-17 | 北京金风科创风电设备有限公司 | internal corrosion protection device and method for wind generating set |
| CN111089031A (en) * | 2019-12-23 | 2020-05-01 | 国网河南省电力公司新野县供电公司 | Self-protection type wind power generation equipment |
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| CN201714603U (en) * | 2010-06-18 | 2011-01-19 | 沈阳中科天道新能源装备股份有限公司 | Sealing device of engine room of wind driven generating unit |
| CN201723384U (en) * | 2010-05-25 | 2011-01-26 | 国电联合动力技术(连云港)有限公司 | Sealing device used between engine room casing and hubcap of wind turbine generator system |
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| CN201030904Y (en) * | 2007-03-27 | 2008-03-05 | 重庆宗申技术开发研究有限公司 | Motorcycle front-lamp socket |
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| CN111089031A (en) * | 2019-12-23 | 2020-05-01 | 国网河南省电力公司新野县供电公司 | Self-protection type wind power generation equipment |
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| Publication number | Publication date |
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| CN102493923B (en) | 2014-03-12 |
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Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |