CN102493923B - 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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- CN102493923B CN102493923B CN201110379560.9A CN201110379560A CN102493923B CN 102493923 B CN102493923 B CN 102493923B CN 201110379560 A CN201110379560 A CN 201110379560A CN 102493923 B CN102493923 B CN 102493923B
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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 for covering the method in wind power generating set gap and the wind power generating set of application the method.
Background technique
Wind power generating set is arranged on the abundant area of wind-resources conventionally, but the common environment in these areas is more severe, is generally the area of rainy water, sand and dust or salt fog.Owing to there being position, more gap in 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 cylinder and engine room cover junction, if the air that contains impurity enters wind power generating set inside via above-mentioned gap, will cause damage to the equipment of wind power generating set inside.For the air that prevents from containing impurity enters generator via above-mentioned gap, need to seal each position, gap of wind power generating set.Conventional encapsulating method mainly contains following several at present: 1) subtract closely spaced size; 2) adopt mechanical labyrinth design to increase air flow resistance; 3) rubber movable sealing structures such as rubber hairbrush, rubber ring, rubber hand-type seal ring is installed at position, gap.Although 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 poor to reduce merely gap length, and has increased manufacturing precision and the difficulty of each parts of wind power generating set; Adopt the design of mechanical labyrinth not only to increase 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, along with the accumulation of fan operation time, can become worse and worse because wearing and tearing cause motive sealing effect.
Summary of the invention
The present invention is devoted to solve the problems referred to above that prior art exists; for this reason; the invention provides a kind of for covering the method in wind power generating set gap; it can effectively prevent under the effect of partial high pressure fluid, entering wind power generating set inside at introduced contaminants; thereby effectively protect wind power generating set internal unit, and the 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, its application is provided by the invention above-mentioned for covering the method in wind power generating set gap, thereby can effectively prevent that introduced contaminants from entering wind power generating set inside by 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 extend the working life of wind power generating set.
For this reason, it is a kind of for covering the method in wind power generating set gap that the present invention also provides, described gap is the gap of the air-flow first component of first flowing through and the second component junction of flowing through subsequently, on described first component, near described gap and the position that is positioned at this gap upwind, diversion component is set, described diversion component comprises fixed end and free end, described fixed end is fixed on described first component, and extend to described free end along the direction that is approximately perpendicular to described first component and second component junction plane, and described diversion component at least covers described gap location in the part of direction windward, the shape of described diversion component is suitable with the shape of parts wherein, and described diversion component has self-resetting capability near free-ended part, and bending is attached on these parts under airflow function.
Wherein, the be projected as central angle of described diversion component on described first component and second component junction plane is greater than 120 degree arcs, semicircle or circular.
Wherein, described diversion component is concave curved surface shape, tubular or " bowl " shape.
Wherein, the axial dimension of described diversion component is 0.5 meter to 2 meters.
Wherein, described diversion component is made by rigid material, elastic material, or described diversion component made by elastic material near free-ended part, away from free-ended part, by rigid material, is made.
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 above-mentioned gap of covering this wind power generating set for covering the method in wind power generating set gap provided by the invention.
Wherein, described gap comprises the gap of gap, air guide sleeve and the generator set of blade and air guide sleeve junction or the gap of engine room cover junction, engine room cover and tower cylinder junction.
Wherein, on described air guide sleeve, near blade and gap, air guide sleeve junction and the position that is positioned at direction on this gap, be provided with diversion component, described diversion component extends along blade bearing of trend, and the shape of shape and blade is suitable, under airflow function, the free end of this diversion component can be attached on blade.
Wherein, at described 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 covers this windward side around the windward side of generator or engine room cover.
Wherein, in described engine room cover, near engine room cover and gap, tower cylinder junction and the position that is positioned at direction on this gap, water conservancy diversion is set and has diversion component, described diversion component is suitable to downward-extension and shape and tower barrel shape, under airflow function the free end of this diversion component can attach with tower cylinder on.
The present invention has following beneficial effect:
Provided by the invention for covering the method in wind power generating set gap; its upper direction position in described gap arranges diversion component; and this diversion component at least covers gap in the part of wind direction windward; thereby can be by gap and the air flow partition of direction windward; effectively prevent that introduced contaminants from entering wind power generating set inside via this gap under the effect of partial high pressure fluid, thereby effectively protect wind power generating set internal unit.In addition, the 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 described diversion component can be attached at wherein on parts under airflow function; thereby by gap and the air-flow of direction cut off completely windward; prevent that better introduced contaminants from entering wind power generating set inside via this gap under the effect of partial high pressure fluid, and then effectively protect 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 gap; and this diversion component at least covers gap in the part of wind direction windward; therefore can be by gap and the air flow partition of direction windward; effectively prevent that introduced contaminants from entering wind power generating set inside via this gap under the effect of partial high pressure fluid; thereby improved the sealing effect in wind power generating set gap; 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.
Accompanying drawing explanation
Fig. 1 is provided by the invention for covering the method application schematic diagram in wind power generating set gap;
Fig. 2 a is the partial enlarged drawing that in Fig. 1, " C " locates;
Fig. 2 b is the sectional view of Fig. 2 a;
Fig. 2 c is another sectional view of Fig. 2 a;
Fig. 3 is the partial enlarged drawing that in Fig. 1, " D " locates;
Fig. 4 a is that in Fig. 1, " E " locates partial enlarged drawing;
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 better technological scheme of the present invention, below in conjunction with accompanying drawing, to provided by the invention, for covering method and the wind power generating set in wind power generating set gap, be elaborated.
Provided by the invention for covering the method in wind power generating set gap, for covering the gap of first component and second component junction, wherein, first component is the parts that first air-flow flows through, second component is the parts that air-flow is flowed through subsequently, its core concept for arranging diversion component near this gap and the position that is positioned at direction on this gap on first component, and this diversion component is extended along the direction that is approximately perpendicular to first component and second component mating face, and make this diversion component at least can cover gap in the part of direction windward, thereby make this gap and air flow partition, reach the object of covering gap.Wherein, the upper direction in gap refers to that side of gap that air-flow first arrives, and in Fig. 1, arrow is depicted as airflow direction, and the upper direction in three gaps shown in figure is all positioned at the left side in gap.
Refer to Fig. 1 to Fig. 2 c, it is for provided by the invention for covering first embodiment's schematic diagram of the method in wind power generating set gap.Known to Fig. 1 and Fig. 2 a, in the present embodiment, the gap that need to cover is the gap of air guide sleeve 1 and blade 4 junctions.In order to cover this gap, at air guide sleeve 1, near this gap and the position that is positioned at this gap upwind, diversion component is set, its windward side around blade becomes semicircle to be fixed on 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 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 blade bearing of trend, and it is made by the composite material (as rubber material) that has high deformation ability and have a self-resetting capability.Diversion component initial position state as shown in Figure 2 b, when wind power generating set brings into operation, the windward side that is fixed on air guide sleeve 1 due to diversion component is located, water conservancy diversion main part 3 deforms under the effect of wind-force, being blown to blade 4 makes water conservancy diversion main part 3 free ends (that is, end) and blade 4 windward sides in laminating contact condition.As shown in Figure 2 c, because water conservancy diversion main part 3 is attached on blade 4, thereby make air guide sleeve 1 and blade 4 gaps, junction in part and the air flow partition of wind direction windward, stop the air of blade 4 zone of high pressure, root windward side inner via the gap inflow unit of air guide sleeve 1 and blade 4 junctions along blade 4, therefore avoided the air that contains impurity enter blower fan inside and internal unit is caused damage.In actual applications, the bridging effect in order to ensure diversion component to 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 to illustrate to such an extent that be, in actual applications, the sectional shape of diversion component,, the projection of shape of diversion component on blade and air guide sleeve mating face, and be confined to semicircle, it can covering gap in the part of direction windward, as long as it meet, for example can be the arc that round angle is greater than 120 degree, or circular.In addition, diversion component also can be made by elastic material entirely, and preferably, the elasticity of diversion component is along increasing gradually to free end direction, that is, larger near free-ended part elasticity, and less near the part elasticity of air guide sleeve or root of blade.
Refer to Fig. 1 and Fig. 3, it is for provided by the invention for covering second embodiment's schematic diagram of the method in wind power generating set gap.Known to Fig. 1 and Fig. 3, in the present embodiment, the gap that need to cover is the gap of air guide sleeve 1 and generator 6 junctions.In order to cover this gap, at the end of air guide sleeve 1, diversion component 5 is set.Diversion component 5 is " bowl " shape; and its opening is greater than generator 6 ends; thereby can generator " parcel " be lived in 1 one weeks around air guide sleeve; stop generator 6 windward side air to enter wind-driven generator inside via the gap of air guide sleeve 1 and generator 6 junctions, play the effect of protection generator 6 and air guide sleeve 1 internal unit.In order to make diversion component 5 and generator 6 keep certain distances, can under wind-force effect, be out of shape and contact with generator 6, in the present embodiment, diversion component 5 is made by rigid material entirely, thereby can avoid contacting with generator 6 rotation that affects generator 6 because being out of shape.
It should be noted that, in the present embodiment, the water conservancy diversion base part of diversion component and water conservancy diversion main part are in actual applications, the shape of diversion component is not limited to " bowl " shape using in embodiment, for example, in can adopting Fang Tizhuan, as long as it can be lived generator or engine room cover " parcel " in one week around air guide sleeve, the gap of air-flow and air guide sleeve and generator or engine room cover junction is cut off.
Refer to Fig. 1 and Fig. 4 a to Fig. 4 c, it is for provided by the invention for covering the 3rd embodiment's schematic diagram of the method in wind power generating set gap.Known to Fig. 1 and Fig. 4 a, in the present embodiment, the gap that need to cover is the gap of engine room cover 7 and tower cylinder 10 junctions.In order to cover this gap, in engine room cover 7, near this gap and the upwind position that is positioned at this gap, diversion component is set, its windward side around tower cylinder 10 becomes semicircle to be fixed in 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 in engine room cover 7, and it is made 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 made by the composite material (as rubber material) that has high deformation ability and have a self-resetting capability.Flow guide device initial position state is as shown in figure Fig. 4 b, when wind power generating set brings into operation, because diversion component is fixed in engine room cover 7, be positioned at the place, windward side at tower cylinder 10 tops, water conservancy diversion main part 9 deforms under the effect of wind-force, be blown to tower cylinder 10, make water conservancy diversion main part 9 free ends (that is, end) and tower cylinder head-on wind in laminating contact condition.As shown in Fig. 4 c, due to, water conservancy diversion main part 9 free ends are attached on tower cylinder 10, thereby tower cylinder 10 and gap and the air-flow of engine room cover 7 junctions are cut off completely, the air that has stoped tower cylinder 10 zone of high pressure, windward side, top enters generator via the gap of tower cylinder 10 and engine room cover 7 junctions, and it is inner and internal unit is caused damage that the air of therefore having avoided containing impurity enters blower fan.
Need to illustrate to such an extent that be, in actual applications, similar with first embodiment of the invention, the sectional shape of diversion component can be the arc that round angle is greater than 120 degree, or circular; And diversion component also can be made by elastic material entirely, and preferably, the elasticity of diversion component is along increasing gradually to free end direction, that is, larger near free-ended part elasticity, and less near the part elasticity of air guide sleeve or root of blade.
Also it should be noted that, although illustrate provided by the invention for covering the method in wind power generating set gap with above-mentioned three embodiments, but in actual applications, the method can be applicable to cover the gap at other positions of wind power generating set equally, and the shape of diversion component is also not limited to above-mentioned concave curved surface shape, tubular or " bowl " shape.For diversion component can be attached on wherein parts that form gap, the shape of diversion component need to be suitable with the shape of these parts, that is, when this parts cross section is circle, the cross section of diversion component can be arc, semicircle or circular; When this parts cross section is while being square, the cross section of diversion component can be square half 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 above-mentioned gap of covering this wind power generating set for covering the method in wind power generating set gap provided by the invention, and described gap comprises the gap of gap, air guide sleeve and the generator set of blade and air guide sleeve junction or the gap of engine room cover junction, engine room cover and tower cylinder junction.Particularly, on described air guide sleeve, near blade and gap, air guide sleeve junction and the position that is positioned at direction on this gap, be provided with diversion component, described diversion component is suitable along the shape of the extension of blade bearing of trend and shape and blade, under airflow function, the free end of this diversion component can be attached on blade, and the structure of diversion component is identical with the structure of diversion component in first embodiment of the invention herein.At described 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 second embodiment of the invention herein.In described engine room cover, near engine room cover and gap, tower cylinder junction and the position that is positioned at this gap upwind, water conservancy diversion is set and has diversion component, described diversion component is suitable to downward-extension and shape and tower barrel shape, under airflow function the free end of this diversion component can attach with tower cylinder on, the structure of diversion component is identical with the structure of diversion component in third embodiment of the invention herein.
Be understandable that, above mode of execution is only used to principle of the present invention is described and the illustrative embodiments that adopts, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. one kind for covering the method in wind power generating set gap, described gap is the gap of the air-flow first component of first flowing through and the second component junction of flowing through subsequently, it is characterized in that, on described first component, near described gap and the position that is positioned at direction on this gap, diversion component is set, described diversion component comprises fixed end and free end, described fixed end is fixed on described first component, and extend to described free end along the direction that is approximately perpendicular to described first component and second component junction plane, and described diversion component at least covers described gap location in the part of direction windward,
The shape of described diversion component is suitable with the shape of parts wherein, and described diversion component has self-resetting capability near free-ended part, and bending is attached on these parts under airflow function.
2. as claimed in claim 1ly for covering the method in wind power generating set gap, it is characterized in that, the be projected as central angle of described diversion component on described first component and second component junction plane is greater than 120 degree arcs, semicircle or circular.
3. as claimed in claim 1ly for covering the method in wind power generating set gap, it is characterized in that, described diversion component is concave curved surface shape, tubular or " bowl " shape.
4. as claimed in claim 1ly for covering the method in wind power generating set gap, it is characterized in that, the axial dimension of described diversion component is 0.5 meter to 2 meters.
5. as claimed in claim 1 for covering the method in wind power generating set gap, it is characterized in that, described diversion component is made by rigid material or elastic material, or described diversion component made by elastic material near free-ended part, away from free-ended part, by rigid material, is made.
6. a wind power generating set, is characterized in that, adopts for covering the method in wind power generating set gap, to cover the gap of this wind power generating set as described in claim 1-5 any one.
7. wind power generating set as claimed in claim 6, is characterized in that, described gap comprises the gap of gap, air guide sleeve and the generator of blade and air guide sleeve junction or the gap of engine room cover junction, engine room cover and tower cylinder junction.
8. wind power generating set as claimed in claim 7, it is characterized in that, on described air guide sleeve, near blade and gap, air guide sleeve junction and the position that is positioned at direction on this gap, be provided with diversion component, described diversion component is suitable along the shape of the extension of blade bearing of trend and shape and blade, and under airflow function, the free end of this diversion component can be attached on blade.
9. wind power generating set as claimed in claim 7, it is characterized in that, at described 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 covers this windward side around the windward side of generator or engine room cover.
10. wind power generating set as claimed in claim 7, it is characterized in that, in described engine room cover, near engine room cover and gap, tower cylinder junction and the position that is positioned at direction on this gap, water conservancy diversion is set and has diversion component, described diversion component is suitable to downward-extension and shape and tower barrel shape, under airflow function the free end of this diversion component can attach with tower cylinder 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 CN102493923A (en) | 2012-06-13 |
| CN102493923B true CN102493923B (en) | 2014-03-12 |
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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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734086B (en) * | 2012-06-29 | 2015-02-18 | 北京金风科创风电设备有限公司 | internal corrosion protection device and method for wind generating set |
| CN111089031B (en) * | 2019-12-23 | 2021-02-12 | 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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| 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 |
| CN201474848U (en) * | 2009-06-23 | 2010-05-19 | 中船重工(重庆)海装风电设备有限公司 | Full-waterproof structure shield for wind generator set below megawatt level |
| CN201576998U (en) * | 2009-12-10 | 2010-09-08 | 西安盾安电气有限公司 | Wind guiding device in slip ring chamber of wind driven generator |
| 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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2011
- 2011-11-18 CN CN201110379560.9A patent/CN102493923B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201474848U (en) * | 2009-06-23 | 2010-05-19 | 中船重工(重庆)海装风电设备有限公司 | Full-waterproof structure shield for wind generator set below megawatt level |
| CN201576998U (en) * | 2009-12-10 | 2010-09-08 | 西安盾安电气有限公司 | Wind guiding device in slip ring chamber of wind driven generator |
| 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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| CN102493923A (en) | 2012-06-13 |
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