CN204253276U - Vertical shaft dual-rotor wind power generating device - Google Patents
Vertical shaft dual-rotor wind power generating device Download PDFInfo
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- CN204253276U CN204253276U CN201420644405.4U CN201420644405U CN204253276U CN 204253276 U CN204253276 U CN 204253276U CN 201420644405 U CN201420644405 U CN 201420644405U CN 204253276 U CN204253276 U CN 204253276U
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The utility model relates to wind power generation field, discloses a kind of vertical shaft dual-rotor wind power generating device.Described vertical shaft dual-rotor wind power generating device, is configured with upper and lower two-layer wind wheel structure and dual-rotor structure, by the acting in opposition of the case apparatus that reverses, finally realizes dual-rotor structure rotor coil and the generating of rotor magnetic pole counter rotating.Be compared to single wind wheel structure, because double layer windwheel structure can promote the wind sweeping area of a times, described wind generating unit can improve output power, and reduces available minimum wind speed, has wider application scenarios.
Description
Technical field
The utility model relates to wind power generation field, particularly, relates to a kind of vertical shaft dual-rotor wind power generating device.
Background technique
Wind-power electricity generation is a kind of is the process of electric energy the kinetic energy of gas flow, and its working principle utilizes the wind-drive wind wheel blade of gas flow to rotate, and recycling speeder promotes rotational speed, drives electrical power generators.According to current wind generating technology, even if wind speed only has the gentle breeze of 3 meters per second also to may be used for wind-power electricity generation, application scenarios is extensive.Simultaneously because wind energy is renewable energy sources, and wind-power electricity generation can not cause radiation or atmospheric pollution, and therefore wind-power electricity generation becomes the new lover of current energy industry.
Existing wind-driven generator is divided into horizontal axis wind-driven generator and vertical axis aerogenerator, and wherein the basic structure of vertical axis aerogenerator is pillar, generator bay and wind wheel structure, and the shaft axis that wind wheel structure rotates is perpendicular to the ground.Described generator bay mostly is single rotor and single statodyne, drives single rotor coil or the generating of single rotor magnetic pole by single wind wheel structure.But the leaf blade size of current single wind wheel vertical-axis generators is unsuitable excessive, thus makes output power be restricted, is necessary that a nearly step improves output power, and reduces available minimum wind speed.
For the problem of the power limited of above-mentioned current vertical axis aerogenerator, need to provide a kind of novel wind power generating set with vertical shaft, effectively can promote the output power of wind power generating set with vertical shaft, and available minimum wind speed can be reduced, thus there is wider application prospect.
Model utility content
For the problem of the power limited of above-mentioned current vertical axis aerogenerator, the utility model provides a kind of vertical shaft dual-rotor wind power generating device, effectively can promote the output power of wind power generating set with vertical shaft, and available minimum wind speed can be reduced, thus there is wider application scenarios.
The technical solution adopted in the utility model, provides a kind of vertical shaft dual-rotor wind power generating device, comprises circular pillar, is connected to the generator bay in the middle part of circular pillar, it is characterized in that, also comprise: lower floor's wind wheel structure and upper strata wind wheel structure; Described lower floor wind wheel structure comprises the first rotating shaft at a slow speed, and level is arranged on first the first braced wing at a slow speed in rotating shaft, is arranged at least three the first blades on braced wing; Described upper strata wind wheel structure comprises the second rotating shaft at a slow speed, and level is arranged on second the second braced wing at a slow speed in rotating shaft, is arranged at least three the second blades on braced wing; Described generator bay comprises the first gear-box, the first quick rotating shaft, the first rotor, the second rotor, the second quick rotating shaft, the second gear-box, reversing shaft and reversion case; First at a slow speed rotating shaft inside be set to circular hollow structure, be enclosed within the bottom of circular pillar, first at a slow speed rotating shaft connect the first gear-box, the first gear-box connects the first quick rotating shaft, the first quick rotating shaft connection the first rotor; Second at a slow speed rotating shaft inside be set to circular hollow structure, be enclosed within the top of circular pillar, second at a slow speed rotating shaft connect reversion case, reversion case connects reversing shaft, reversing shaft connects the second gear-box, and the second gear-box connects the second quick rotating shaft, and the second quick rotating shaft connects the second rotor.Described wind generating unit is configured with two-layer wind wheel structure and dual-rotor structure, is gathered wind energy by two-layer wind wheel structure, can improve the collection power of wind energy.Simultaneously two-layer wind wheel structure drives rotor coil in dual-rotor structure and rotor magnetic pole respectively, although two-layer wind wheel structure its sense of rotation under same aweather effect is identical, but because upper strata wind wheel structure is connected to the second rotor indirectly by a reversion case apparatus, acting in opposition through reversion case apparatus finally makes rotor coil and rotor magnetic pole counter rotating, thus the wind energy of upper and lower layers wind wheel structure collection can be synthesized, and be converted into electrical energy form output, realize the lifting of wind driven generator output power.Due to rotor coil and rotor magnetic pole counter rotating, the relative rotation speed of two rotors under equal wind-force can promote nearly one times, and described wind generating unit also helps reduce available minimum wind speed.
Concrete, described the first rotor is rotor coil, and the second rotor is rotor magnetic pole; Or described the first rotor is rotor magnetic pole, the second rotor is rotor coil.
Concrete, described reversion case comprises the first worm screw, worm gear and the second worm screw; The gear teeth of described worm gear side coordinate with the thread of the first worm screw, and the gear teeth of worm gear opposite side coordinate with the thread of the second worm screw; First worm screw with second at a slow speed rotating shaft be connected, second worm screw is connected with reversing shaft, the axis angle of the first worm and wheel is 90 degree, and the axis angle of the second worm and wheel is 90 degree, and the thread sense of rotation of the first worm screw is contrary with the thread sense of rotation of the second worm screw.First worm screw is left hand worm, and the second worm screw is right hand worm; Or the first worm screw is right hand worm, the second worm screw is left hand worm.Described reversion case, by the cooperation of worm and worm wheel, makes the sense of rotation of reversing shaft contrary with the sense of rotation of the second slow axis, and then drives the second rotor, realizes the counter rotating of rotor coil and rotor magnetic pole.
Concrete, lower floor's wind wheel structure comprises 3 to 8 the first blades; And/or upper strata wind wheel structure comprises 3 to 8 the second blades.Described first blade be resistance blade, lift force blade and fall in power blade any; And/or, described second blade be resistance blade, lift force blade and fall in power blade any.
To sum up, the vertical shaft dual-rotor wind power generating device provided described in the utility model is provided, be configured with upper and lower two-layer wind wheel structure and dual-rotor structure, by the acting in opposition of the case apparatus that reverses, finally realize dual-rotor structure rotor coil and the generating of rotor magnetic pole counter rotating.Be compared to single wind wheel structure, because double layer windwheel structure can promote the wind sweeping area of a times, described wind generating unit can improve output power, and reduces available minimum wind speed, has wider application scenarios.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the profile of the vertical shaft dual-rotor wind power generating device that the utility model embodiment provides.
Fig. 2 is the plan view of the vertical shaft dual-rotor wind power generating device that the utility model embodiment provides.
Fig. 3 is the cut-away view of generator bay in the vertical shaft dual-rotor wind power generating device that provides of the utility model embodiment.
Fig. 4 is the structural representation of case of reversing in the vertical shaft dual-rotor wind power generating device that provides of the utility model embodiment.
In above-mentioned accompanying drawing: 1, circular pillar 2, generator bay 2a, first gear-box 2b, first quick rotating shaft 2c, the first rotor 2d, second rotor 2e, second quick rotating shaft 2f, second gear-box 2g, reversing shaft 3, lower floor wind wheel structure 3a, first rotating shaft 3b at a slow speed, first braced wing 3c, first blade 4, upper strata wind wheel structure 4a, second rotating shaft 4b at a slow speed, second braced wing 4c, second blade 5, anti-vanning 5a, first worm screw 5b, worm gear 5c, second worm screw.
Embodiment
Hereinafter with reference to accompanying drawing, describe by way of example the vertical shaft dual-rotor wind power generating device that the utility model provides in detail.It should be noted that at this, the explanation for these way of example understands the utility model for helping, but does not form restriction of the present utility model.
Various technology described herein may be used for but be not limited to wind power generation field, can also be used for other such as similar field such as hydroelectric power, tidal power generation.
Term "and/or" herein, it is only a kind of incidence relation describing affiliated partner, three kinds of relations can be there are in expression, such as, A and/or B, can represent: individualism A, individualism B, there are A and B tri-kinds of situations simultaneously, herein term " or/and " be describe another kind of affiliated partner relation, can there are two kinds of relations in expression, such as, A is or/and B, can represent: individualism A, individualism A and B two kinds of situations, in addition, character "/" herein, general expression forward-backward correlation is to liking a kind of "or" relation.
Embodiment one, Fig. 1 shows the structural drawing of the vertical shaft dual-rotor wind power generating device that the present embodiment provides, Fig. 2 shows the plan view of the vertical shaft dual-rotor wind power generating device that the present embodiment provides, Fig. 3 shows the cut-away view of generator bay in the vertical shaft dual-rotor wind power generating device that the present embodiment provides, and Fig. 4 shows in the vertical shaft dual-rotor wind power generating device that the present embodiment provides the structural representation of the case that reverses.Described vertical shaft dual-rotor wind power generating device, comprises circular pillar 1, is connected to the generator bay 2 at middle part on circular pillar 1, it is characterized in that, also comprise: lower floor's wind wheel structure 3 and upper strata wind wheel structure 4; Described lower floor wind wheel structure 3 comprises the first rotating shaft 3a at a slow speed, and level is arranged on first the first braced wing 3b at a slow speed on rotating shaft 3a, is arranged at least three the first blade 3c on braced wing 3b; Described upper strata wind wheel structure 4 comprises the second rotating shaft 4a at a slow speed, and level is arranged on second the second braced wing 4b at a slow speed on rotating shaft 4a, is arranged at least three the second blade 4c on braced wing 3b; Described generator bay 2 comprises the first gear-box 2a, the first quick rotating shaft 2b, the first rotor 2c, the second rotor 2d, the second quick rotating shaft 2e, the second gear-box 2f, reversing shaft 2g and reversion case 5; First at a slow speed rotating shaft 3a inside be set to circular hollow structure, be enclosed within the bottom of circular pillar 1, first at a slow speed rotating shaft 3a connect the first gear-box 2a, the first gear-box 2a connects the first quick rotating shaft 2b, the first quick rotating shaft 2b connection the first rotor 2c; Second at a slow speed rotating shaft 4a inside be set to circular hollow structure, be enclosed within the top of circular pillar 1, second at a slow speed rotating shaft 4a connect reversion case 5, reversion case 5 connects reversing shaft 2g, reversing shaft 2g connects the second gear-box 2f, second gear-box 2f connects the second quick rotating shaft 2e, and the second quick rotating shaft 2e connects the second rotor 2d.Described wind generating unit is configured with two-layer wind wheel structure and dual-rotor structure, is gathered wind energy by two-layer wind wheel structure, improves the collection power of wind energy.Simultaneously two-layer wind wheel structure drives rotor coil in dual-rotor structure and rotor magnetic pole respectively, although two-layer wind wheel structure its sense of rotation under same aweather effect is identical, but because upper strata wind wheel structure 4 is connected to the second rotor 2d indirectly by a reversion case apparatus, acting in opposition through reversion case apparatus finally makes rotor coil and rotor magnetic pole counter rotating, such as lower floor's wind wheel structure 3 and upper strata wind wheel structure 4 be turn clockwise time, anti-vanning 5 can make reversing shaft 2g be rotated counterclockwise, realize the first rotor 2c finally by kinetic energy transmission to turn clockwise, second rotor 2d is rotated counterclockwise, thus the wind energy of upper and lower layers wind wheel structure collection can be synthesized, and be converted into electrical energy form output, realize the lifting of wind driven generator output power.Due to rotor coil and rotor magnetic pole counter rotating, the relative rotation speed of two rotors under equal wind-force can promote nearly one times, and described wind generating unit also helps reduce available minimum wind speed.In addition, the first gear-box 2a in the present embodiment and the second gear-box 2f is for improving rotational speed, and being beneficial to Wind resource change is electric energy.
Concrete, described the first rotor 2c is rotor coil, and the second rotor 2d is rotor magnetic pole; Or described the first rotor 2c is rotor magnetic pole, the second rotor 2d is rotor coil.The first rotor 2c and the second rotor coil and field structure each other, the magnetic induction line that coil cutting magnetic pole produces, thus be electric energy by kinetic transformation, the core component of generator, as what optimize, in an embodiment, the first rotor 2c is rotor coil, and the second rotor 2d is rotor magnetic pole.
Concrete, described reversion case 5 comprises the first worm screw 5a, worm gear 5b and the second worm screw 5c; The gear teeth of described worm gear 5b side coordinate with the thread of the first worm screw 5a, and the gear teeth of worm gear 5b opposite side coordinate with the thread of the second worm screw 5c; First worm screw 5a with second at a slow speed rotating shaft 4c be connected, second worm screw 5c is connected with reversing shaft 2g, the axis angle of the first worm screw 5a and worm gear 5b is 90 degree, the axis angle of the second worm screw 5a and worm gear 5b is 90 degree, and the thread sense of rotation of the first worm screw 5a is contrary with the thread sense of rotation of the second worm screw 5c.Described reversion case 5, by the cooperation of worm and worm wheel, makes the sense of rotation of reversing shaft 2g contrary with the sense of rotation of the second slow axis 4c, and then drives the second rotor 2d, realizes the counter rotating of rotor coil and rotor magnetic pole.Concrete further, described first worm screw 5a is left hand worm, and the second worm screw 5c is right hand worm; Or the first worm screw 5a is right hand worm, the second worm screw 5c is left hand worm.The lead angle of the first worm screw 5a is greater than 30 degree and is not more than 60 degree; Or the lead angle of the second worm screw 5c is greater than 30 degree and is not more than 60 degree.Worm and worm wheel cooperating structure as shown in Figure 4, described first worm screw 5a is left hand worm, and the second worm screw 5c is right hand worm.When second at a slow speed rotating shaft 4c left-handed rotation time, first worm screw 5a is left-handed and by driving worm gear 5b to turn clockwise with the thread mating reaction of worm gear, worm gear 5b by driving the second worm screw 5c dextrorotation with the thread mating reaction of the second worm screw 5c, finally realizing counterrotating and exporting to reversing shaft 2g equally.In addition, the counterrotating speed of reversing shaft 2g can be improved or reduce by the lead angle size changing the first worm screw 5a and the second worm screw 5c, as what optimize, in the present embodiment, the lead angle of the first worm screw 5a and the second worm screw 5c is 45 degree, the sense of rotation of the second rotating shaft 4c and reversing shaft 2g is at a slow speed contrary, but rotational speed is identical.
Concrete, described lower floor wind wheel structure 3 comprises 3 to 8 the first blade 3c; And/or upper strata wind wheel structure 4 comprises 3 to 8 the second blade 4c.The lobe numbers of described lower floor wind wheel structure 3 can be identical with the lobe numbers of upper strata wind wheel structure 4, also can be different, as what optimize, in the present embodiment, as shown in Figure 2, lower floor's wind wheel structure 3 comprises 5 the first blade 3c, and upper strata wind wheel structure 4 comprises 5 the second blade 4c.
Concrete, described first blade 3c be resistance blade, lift force blade and fall in power blade any; And/or, described second blade 4c be resistance blade, lift force blade and fall in power blade any.Described first blade 3c can be identical with the vane type of the second blade 4c, also can be different.Especially, because vertical axis rotor is on distinguished and admirable impact, part wind direction flows and/or flows downward, described double layer construction can also make upper strata wind wheel structure 4 can gather through lower floor's wind wheel structure 3 and not by part wind energy that lower floor's wind wheel structure 3 gathers, lower floor's wind wheel structure 3 can be gathered through upper strata wind wheel structure 4 and not by the part wind energy that upper strata wind wheel structure 4 gathers, the collecting efficiency of wind energy can be improved and be converted into the efficiency of electric energy.Such as, when the first blade 3c is lift force blade, the wind part flowing through lower floor's wind wheel structure 3 can be made upwards to flow, homodromal upper strata wind wheel structure 4 can gather through lower floor's wind wheel structure 3 and not by part wind energy that lower floor's wind wheel structure 3 gathers; Same, when the second blade 4c is for falling power blade, the wind part flowing through upper strata wind wheel structure 4 can be made to flow downward, and homodromal lower floor wind wheel structure 3 gathers through upper strata wind wheel structure 4 and not by the part wind energy that upper strata wind wheel structure 4 gathers, thus can also improve wind collecting efficiency.As what optimize, in the present embodiment, the first blade 3c is lift force blade, and the second blade 4c, for falling power blade, can further improve the collecting efficiency of wind energy and is converted into the efficiency of electric energy.
The above-mentioned vertical shaft dual-rotor wind power generating device provided, is configured with upper and lower two-layer wind wheel structure and dual-rotor structure, and passes through the acting in opposition of reversion case apparatus, finally realizes dual-rotor structure rotor coil and the generating of rotor magnetic pole counter rotating.Be compared to single wind wheel structure, because double layer windwheel structure can promote the wind sweeping area of a times, described wind generating unit can improve output power, and reduces available minimum wind speed, has wider application scenarios.
As mentioned above, the utility model can be realized preferably.For a person skilled in the art, according to instruction of the present utility model, designing multi-form vertical shaft dual-rotor wind power generating device does not need performing creative labour.When not departing from principle of the present utility model and spirit, these embodiments being changed, revising, replace, integrate and modification still falls in protection domain of the present utility model.
Claims (7)
1. a vertical shaft dual-rotor wind power generating device, comprises circular pillar (1), is connected to the generator bay (2) at circular pillar (1) middle part, it is characterized in that, also comprise: lower floor's wind wheel structure (3) and upper strata wind wheel structure (4);
Described lower floor wind wheel structure (3) comprises the first rotating shaft at a slow speed (3a), and level is arranged on the first braced wing (3b) in the first rotating shaft at a slow speed (3a), is arranged at least three the first blades (3c) on braced wing (3b);
Described upper strata wind wheel structure (4) comprises the second rotating shaft at a slow speed (4a), and level is arranged on the second braced wing (4b) in the second rotating shaft at a slow speed (4a), is arranged at least three the second blades (4c) on braced wing (3b);
Described generator bay (2) comprises the first gear-box (2a), the first quick rotating shaft (2b), the first rotor (2c), the second rotor (2d), the second quick rotating shaft (2e), the second gear-box (2f), reversing shaft (2g) and reversion case (5);
First rotating shaft at a slow speed (3a) inside is set to circular hollow structure, be enclosed within the bottom of circular pillar (1), first rotating shaft at a slow speed (3a) connects the first gear-box (2a), first gear-box (2a) connects the first quick rotating shaft (2b), and the first quick rotating shaft (2b) connects the first rotor (2c);
Second rotating shaft at a slow speed (4a) inside is set to circular hollow structure, be enclosed within the top of circular pillar (1), second rotating shaft at a slow speed (4a) connects reversion case (5), reversion case (5) connects reversing shaft (2g), reversing shaft (2g) connects the second gear-box (2f), second gear-box (2f) connects the second quick rotating shaft (2e), and the second quick rotating shaft (2e) connects the second rotor (2d).
2. vertical shaft dual-rotor wind power generating device as claimed in claim 1, is characterized in that, comprising:
Described the first rotor (2c) is rotor coil, and the second rotor (2d) is rotor magnetic pole;
Or described the first rotor (2c) is rotor magnetic pole, the second rotor (2d) is rotor coil.
3. vertical shaft dual-rotor wind power generating device as claimed in claim 1, is characterized in that, comprising:
Described reversion case (5) comprises the first worm screw (5a), worm gear (5b) and the second worm screw (5c);
The gear teeth of described worm gear (5b) side coordinate with the thread of the first worm screw (5a), and the gear teeth of worm gear (5b) opposite side coordinate with the thread of the second worm screw (5c);
First worm screw (5a) is connected with the second rotating shaft at a slow speed (4c), second worm screw (5c) is connected with reversing shaft (2g), first worm screw (5a) is 90 degree with the axis angle of worm gear (5b), second worm screw (5a) is 90 degree with the axis angle of worm gear (5b), and the thread sense of rotation of the first worm screw (5a) is contrary with the thread sense of rotation of the second worm screw (5c).
4. vertical shaft dual-rotor wind power generating device as claimed in claim 3, is characterized in that, comprising:
First worm screw (5a) is left hand worm, and the second worm screw (5c) is right hand worm;
Or the first worm screw (5a) is right hand worm, the second worm screw (5c) is left hand worm.
5. vertical shaft dual-rotor wind power generating device as claimed in claim 3, is characterized in that, comprising:
The lead angle of the first worm screw (5a) is greater than 30 degree and is not more than 60 degree;
Or the lead angle of the second worm screw (5c) is greater than 30 degree and is not more than 60 degree.
6. vertical shaft dual-rotor wind power generating device as claimed in claim 1, is characterized in that, comprising:
Lower floor's wind wheel structure (3) comprises 3 to 8 the first blades (3c);
And/or upper strata wind wheel structure (4) comprises 3 to 8 the second blades (4c).
7. vertical shaft dual-rotor wind power generating device as claimed in claim 1, is characterized in that, comprising:
Described first blade (3c) for resistance blade, lift force blade and fall in power blade any;
And/or, described second blade (4c) for resistance blade, lift force blade and fall in power blade any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644405.4U CN204253276U (en) | 2014-10-30 | 2014-10-30 | Vertical shaft dual-rotor wind power generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644405.4U CN204253276U (en) | 2014-10-30 | 2014-10-30 | Vertical shaft dual-rotor wind power generating device |
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| CN204253276U true CN204253276U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420644405.4U Expired - Fee Related CN204253276U (en) | 2014-10-30 | 2014-10-30 | Vertical shaft dual-rotor wind power generating device |
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| CN (1) | CN204253276U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533707A (en) * | 2014-10-30 | 2015-04-22 | 成都峰达科技有限公司 | Vertical axis wind power generation structure capable of achieving high power |
| CN105804933A (en) * | 2016-05-18 | 2016-07-27 | 桂林电子科技大学 | Double-rotating-vane vertical axis wind turbine |
| CN110107453A (en) * | 2019-06-18 | 2019-08-09 | 河南卫星科技有限公司 | A kind of tower-type wind generating equipment and its power generator |
-
2014
- 2014-10-30 CN CN201420644405.4U patent/CN204253276U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533707A (en) * | 2014-10-30 | 2015-04-22 | 成都峰达科技有限公司 | Vertical axis wind power generation structure capable of achieving high power |
| CN105804933A (en) * | 2016-05-18 | 2016-07-27 | 桂林电子科技大学 | Double-rotating-vane vertical axis wind turbine |
| CN105804933B (en) * | 2016-05-18 | 2018-07-03 | 桂林电子科技大学 | A kind of double rotating vane upright shaft wind motors |
| CN110107453A (en) * | 2019-06-18 | 2019-08-09 | 河南卫星科技有限公司 | A kind of tower-type wind generating equipment and its power generator |
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