CN103883465A - Paddle-shaped blade and drum type extendable wind wheel of horizontal-axis wind driven generator - Google Patents
Paddle-shaped blade and drum type extendable wind wheel of horizontal-axis wind driven generator Download PDFInfo
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- CN103883465A CN103883465A CN201410061454.XA CN201410061454A CN103883465A CN 103883465 A CN103883465 A CN 103883465A CN 201410061454 A CN201410061454 A CN 201410061454A CN 103883465 A CN103883465 A CN 103883465A
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- 238000005516 engineering process Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/221—Rotors for wind turbines with horizontal axis
- F05B2240/2211—Rotors for wind turbines with horizontal axis of the multibladed, low speed, e.g. "American farm" type
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
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Abstract
The invention relates to the technical field of wind power generation, in particular to a paddle-shaped blade and an extendable wind wheel of a horizontal-axis wind driven generator. Most of existing horizontal-axis wind driven generator are provided with three blades, and due to limitation of forms of the blades, height of the wind driven generators and the like, many problems still exist like that the blades are low in wind capturing efficiency and prone to breakage, wind wheels are large in air leakage, output power is low, and wind utilization rate is small. The technical scheme includes that the horizontal-axis wind driven generator comprises a front frame, an intermediate frame, a rear frame and an adjusting device, inner frames of the front frame, the intermediate frame and the rear frame are sequentially assembled on a front section of a wind driven generator spindle, the intermediate frame and the wind driven generator spindle are positioned by screws, the front frame and the rear frame are slidably matched with the wind driven generator spindle, the paddle-shaped blades are assembled on the intermediate frame, end portions of the blades are matched with slides of the front frame and the rear frame, and the adjusting device drives sliders on end portions of the blades to adjust windward angles of the blades. The paddle-shaped blade and the extendable wind wheel of the horizontal-axis wind turbine have the advantages that wind driven generator output power and wind capturing efficiency are increased, and costs on power generation in unit, repairing and maintenance are lowered.
Description
Technical field
The present invention relates to wind generating unit technical field, specifically a kind of horizontal axis wind-driven generator quant shape blade and the scalable wind wheel of drum type.
Background technique
Wind-power electricity generation has the features such as clean, pollution-free, is widely used.Wind-driven generator utilization utilizes wind energy drive vane to drive generator shaft rotation; Existing wind-driven generator mostly is the horizontal axial type wind-driven generator of three blades, and for improving the rated output power of generator, the horizontal axis wind-driven generator height using is at present all higher, and some blower fan overall height is even up to 100 meters.Power is greater than equipment more than 2MW, as further increase blower fan rated output power, need to increase the length of blade and improve the height of blower fan, owing to being subject to the restriction of the strength of materials and own wt, there are the following problems to adopt the wind-driven generator large scale development of this structure:
(1) after the height of blower fan increases, the degree of rocking of blower fan increases thereupon, and the space not only taking is large, and wind loading rating is poor, cause available wind speed range to be dwindled, generally in the time that exceeding 25m/s, wind speed just must shut down, cause a large amount of wastes of wind energy resources, the availability of blower fan reduces;
(2) height of blower fan is higher, and hoisting difficulty, lifting danger etc. are larger, and hoisting cost significantly increases; Regular maintenance difficulty, maintenance cost significantly increases;
(3) wind-driven generator the increase of output power causes blower fan overall height to increase, and wind-force Applicable scope narrows, the increase of equipment maintenance cost, and the cost that obtains per kilowatt electric energy significantly rises, and does not possess competitive ability;
(4) be subject to the restriction of current material technology, the length of fan blade is difficult to further increase; And current existing large fan blade easily fractures, the life-span is short, and renewal cost is higher;
(5), in prior art, three blade adjustments of horizontal axial type wind-driven generator often can not be synchronous, causes by forced-stopping machine.
In sum, the horizontal axial type blower fan technology maturation of prior art, its scale is manufactured, with low cost, but be subject to the restriction of blade shape, intensity and blower fan tower barrel height, ubiquity blower fan output power is less than normal, blade easily fractures, blade is flutterred the shortcomings such as wind efficiency is low, wind wheel inleakage is huge, and wind speed 13m/s starts to abandon wind, 25m/s and all abandons wind; And wind power equipment investment is large, the cost recovery cycle is long, and annual utilization hours is on the low side.
Summary of the invention
The object of this invention is to provide a kind of horizontal axis wind-driven generator quant shape blade and the scalable wind wheel of drum type, overcome deficiency of the prior art, improved utilization ratio and the generating efficiency of wind energy.
Technological scheme of the present invention:
Comprise shaft tower, blower fan main shaft, generator; Blower fan main shaft middle part is assemblied in head of mast, and generator is assemblied in blower fan main shaft back segment; Blower fan main shaft front end is equipped with tapered air guide sleeve;
Also comprise front baffle, central frame, afterframe, blade, sharf, curved rod, controlling device;
Front baffle, central frame, afterframe, by inside casing and housing composition, connect by strut between the inside casing of each framework and housing; The inside casing of front baffle, central frame, afterframe is sleeved on the leading portion of blower fan main shaft successively, the inside casing of front baffle, central frame, afterframe is all connected by key with blower fan main shaft, inside casing and the blower fan main shaft of central frame are located by fixing bolt, and inside casing and the blower fan main shaft of front baffle and afterframe are slidably matched;
The outside of central frame inside casing and central frame housing inner side are provided with the deck of mutual correspondence; Blade is quant shape, and blade central longitudinal is to being provided with axis hole, and blade pass is crossed axis hole and is assemblied on sharf, and the fixture block at sharf two ends is assemblied in deck;
Blade lateral cross section is curved, blade near central frame housing one end to lateral bend before blower fan main shaft; Blade is connected and installed with two slide blocks near the end of central frame housing by universal joint, and two slide blocks lay respectively at sharf both sides;
Front baffle housing and afterframe housing are equipped with slideway; Two slide blocks of each blade tip are assemblied in respectively in the slideway of front baffle housing and afterframe housing; Between each slide block between each slide block in front baffle slideway and in afterframe slideway, all connect by curved rod;
Controlling device comprises several adjusting motors and rope or pull bar; Each motor that regulates is connected with the curved rod in curved rod and afterframe slideway in front baffle slideway respectively by stay cord respectively, or adjusting motor connects front baffle and afterframe by pull bar.
Further, the adjusting motor of described controlling device respectively all angle be arranged on front baffle inside casing and afterframe inside casing; The strut of front baffle and afterframe is hollow lever; Curved rod in front baffle housing slideway is connected with array rope, respectively organizes rope corresponding with the adjusting motor that is arranged on front baffle inside casing respectively; Every group of rope forms by two stay cords, and through the front baffle strut body of rod of hollow, two stay cord reverse-windings connect the power take-off mechanism of corresponding adjusting motor;
Curved rod in afterframe housing slideway is connected with array stay cord, respectively organizes stay cord corresponding with the adjusting motor that is arranged on afterframe inside casing respectively; Every group of rope forms by two stay cords, and through the afterframe strut body of rod of hollow, two stay cord reverse-windings connect the power take-off mechanism of corresponding adjusting motor.
Further, the adjusting motor of described controlling device respectively equal angle is arranged on the blower fan main shaft of forward and backward framework both sides, and the power take-off mechanism of each adjusting motor connects pull bar by turbine and worm device or hydraulic pressure installation respectively; The each pull bar the other end that regulates motor to be connected with front baffle side is connected with front baffle; The each pull bar the other end that regulates motor to be connected with afterframe side is connected with afterframe.
Further, described front baffle housing edge is equipped with trumpet-shaped collection wind edge.
Further, in the axis hole of described blade, be provided with screw thread, sharf and blade pass are crossed screw-thread fit.
Horizontal axis wind-driven generator quant shape blade of the present invention and the scalable wind wheel of drum type, multiple oar shape blades are assemblied in drum type wind wheel framework, improve the generating efficiency of blower fan, solved output power on prior art horizontal axis wind-driven generator and be difficult to the problem such as further increase, the easy damage of blade, the present invention has following beneficial effect:
1, by changing quantity, shape and the mounting type of blade, significantly increase single-machine capacity, in the situation that not increasing wind-driven generator shaft tower height and length of blade, improved blower fan output power and flutterred wind efficiency, reduced the cost of unit generated output;
2, wind wheel of the present invention adopts frame structure, and blade two ends are equipped with the strong point, has avoided current three blade horizontal axis fan blades easily to suffer that thunderbolt and strong wind fracture; Maintenance and maintenance cost are reduced;
3, make blower fan adapt to the wider of wind speed by adjusting vane angle; This equipment not only can be at low wind speed area operation, and can meet the service condition (being need not shut down under high wind speed) in high wind speed region, and cut-out wind speed reaches 25m/s still can, by the normally operation at full capacity of adjusting vane small angle, improve wind energy utilization efficiency;
4, wind wheel frame front is provided with collection wind edge and air guide sleeve, improves the wind energy power of flutterring of blower fan.
Below in conjunction with drawings and Examples, summary of the invention of the present invention is further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is front baffle structural representation of the present invention;
Fig. 3 is central frame of the present invention and sharf assembling schematic diagram;
Fig. 4 is the assembling schematic diagram of blade of the present invention and sharf;
Fig. 5 is the left view of Fig. 4 of the present invention;
Fig. 6 is that the A-A of Fig. 4 of the present invention is to sectional view;
Fig. 7 is the deck sectional view of central frame of the present invention;
Fig. 8 is the sectional view of the present invention and front baffle slideway.
Embodiment
In figure: 1, Ji Fengyan, 2, front baffle housing, 3, air guide sleeve, 4, blade, 5, central frame housing, 6, afterframe housing, 7, blower fan main shaft, 8, generator, 9, shaft tower, 10, front baffle inside casing, 11, strut, 12, central frame inside casing, 13, sharf, 14, universal joint, 15, slide block, 16, fixture block.
Embodiment 1
From Fig. 1～Fig. 8, the present invention includes shaft tower 9, blower fan main shaft 7, generator 8, front baffle, central frame, afterframe, blade 4, sharf 13, curved rod, controlling device; Blower fan main shaft 7 middle parts are assemblied in shaft tower 9 tops, and generator 8 is assemblied in the back segment of blower fan main shaft 7;
Front baffle, central frame, afterframe are by inside casing and housing composition, and front baffle is identical with afterframe structure, and the strut 11 by three hollows between inside casing and housing is connected; Between central frame inside casing 12 and central frame housing 5, be also connected by three struts;
The inside casing of front baffle, central frame, afterframe is sleeved on the leading portion of blower fan main shaft 7 successively, the central through bore of front baffle, central frame and afterframe inside casing is provided with keyway, the inside casing of forward and backward framework and central frame and blower fan main shaft 7 pass through spline joint, central frame inside casing 12 is located by several fixing bolts with blower fan main shaft 7, guarantees between central frame and blower fan main shaft 7 without axial displacement; Between front baffle inside casing 10 and afterframe inside casing and blower fan main shaft 7, be slidably matched, the inside casing of front baffle and afterframe can slide axially along blower fan main shaft 7, make forward and backward framework near or away from central frame;
Central frame inside casing 12 outsides and central frame housing 5 inner sides are provided with the deck of mutual correspondence; Blade 4 is quant shape, blade 4 central longitudinal are to being provided with axis hole, sharf 13 two ends are provided with fixture block 16, sharf 13 is through the axis hole of blade 4, the fixture block 16 at axle two ends is arranged on respectively in the deck of central frame internal and external frames, the present embodiment adopts nine blades, and each blade is radial and distributes around blower fan main shaft 7;
Outer section of blade 4 side of central frame housing (near) be (windward a side) bending to blower fan main shaft front side, and the cross section of blade is curved; The outer end (near central frame housing side) of blade 4 is connected and installed with two slide blocks, 15, two slide blocks 15 by universal joint 14 and lays respectively at sharf both sides;
The inner side of front baffle housing 2 and afterframe housing 6 is equipped with slideway; The slide block of each blade 4 ends coordinates with front baffle housing slideway and afterframe housing slideway respectively, the slide block 15 that is positioned at sharf 13 1 sides is assemblied in the slideway of front baffle housing 2, and the slide block 15 of sharf 13 opposite side shoulders is assemblied in the slideway of afterframe housing 6; Between each slide block 15 in front baffle housing slideway, interconnect by the curved rod that is positioned at front baffle slideway; Between each slide block 15 in afterframe housing slideway, connect by the curved rod that is positioned at afterframe slideway;
The controlling device of the present embodiment comprises adjusting motor and stay cord; The forward and backward framework of the present embodiment adopts respectively three adjusting motors to adjust blade angle, regulates the equal angle of motor to be arranged on the outside of front baffle inside casing 10 and the sidepiece of afterframe inside casing;
Curved rod in curved rod in front baffle housing slideway and afterframe housing slideway is respectively connected with three groups of ropes, and corresponding with each the adjusting motor that is arranged on forward and backward framework inside casing respectively, every group of rope forms by two stay cords; Connect three groups of ropes of front baffle curved rod respectively through the hollow channel of the front baffle strut body of rod, two stay cord reverse-windings respectively organizing rope are connected on the bobbin of corresponding adjusting motor power output shaft; Connect three groups of ropes of afterframe curved rod respectively through the hollow channel of the afterframe strut body of rod, two stay cord reverse-windings respectively organizing rope are connected on the bobbin of corresponding adjusting motor power output shaft; When each adjusting machine operation, bobbin rotates, and two stay cords in every group of rope are retractable in the other direction all, and wherein a stay cord pulls curved rod to move along its slideway, and band moving vane rotates around sharf; In the time of bobbin counterrotating, pull curved rod to move along its slideway in the other direction by another stay cord, make blade around sharf counter-rotation.
While adjusting each blade 4 angle, be assemblied in the adjusting motor counterrotating on forward and backward framework, each group rope pulls the curved rod motion that is positioned at forward and backward framework slideway, the curved rod glide direction of forward and backward framework is contrary, drive each blade 4 to rotate and change Windward angles around sharf 13, simultaneously forward and backward framework away from or approach central frame.
The present embodiment as different from Example 1, is provided with screw thread in the axis hole of blade 4, and sharf 13 by screw-thread fit, makes the weight stepless action of blade 4 in sharf 13 with blade 4, and this structure is applicable to the larger large fan of leaf weight; Controlling device adopts six adjusting motors and pull bar; On the blower fan main shaft 7 of front baffle and afterframe both sides, each equal angle is fixedly equipped with three adjusting motors, and the power take-off mechanism of the power take-off mechanism of each adjusting motor of front baffle side and each adjusting motor of afterframe side connects pull bar by turbine and worm device respectively; The other end of three pull bars of front baffle side (controlling front baffle motion) is connected front baffle inside casing 10 with flange plate by universal joint; The other end of three pull bars of afterframe side (controlling afterframe motion) is connected afterframe inside casing with flange plate by universal joint.
While carrying out blade 4 angular adjustment, the adjusting motor of forward and backward framework turns round simultaneously, drive the pull bar motion in the other direction of forward and backward framework, push away, draw front baffle and afterframe to move axially along blower fan main shaft 7, near or away from central frame, make to be positioned at slide block and the curved rod reverse slide of forward and backward framework slideway, drive all blade synchronization to rotate, realize the adjustment of blade Windward angle.
In this example, the adjusting motor output mechanism of controlling device also can move by hydraulic pressure installation control pull bar; The output mechanism of motor is connected with oil pump, and pull bar is connected on oil hydraulic cylinder push rod, is connected and is controlled hydraulic cylinder works by oil pump.
Other structure of the present embodiment is identical with embodiment 1.
It should be pointed out that the above detailed description of technological scheme of the present invention being carried out by preferred embodiment is illustrative and not restrictive.The technological scheme that those of ordinary skill in the art can record each embodiment on the basis of reading specification of the present invention is modified, or part technical characteristics is wherein equal to replacement, and these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technological scheme.
Claims (5)
1. the scalable wind wheel of horizontal axis wind-driven generator quant shape blade and drum type, comprises shaft tower (9), blower fan main shaft (7), generator (8); Blower fan main shaft (7) middle part is assemblied in shaft tower (9) top, and generator (8) is assemblied in blower fan main shaft (7) back segment; Blower fan main shaft (7) front end is equipped with tapered air guide sleeve (3);
It is characterized in that: also comprise front baffle, central frame, afterframe, blade (4), sharf (13), curved rod, controlling device;
Front baffle, central frame, afterframe, by inside casing and housing composition, connect by strut (11) between the inside casing of each framework and housing; The inside casing of front baffle, central frame, afterframe is sleeved on the leading portion of blower fan main shaft (7) successively, the inside casing of front baffle, central frame, afterframe is all connected by key with blower fan main shaft, central frame inside casing (12) is located by fixing bolt with blower fan main shaft (7), and the inside casing of front baffle and afterframe and blower fan main shaft (7) are slidably matched;
The outside of central frame inside casing (12) and central frame housing (5) inner side are provided with the deck of mutual correspondence; Blade (4) is quant shape, and blade (4) central longitudinal is to being provided with axis hole, and it is upper that blade (4) is assemblied in sharf (13) by axis hole, and the fixture block (16) at sharf (13) two ends is assemblied in deck;
Blade (4) lateral cross section is curved, and the close central frame housing (5) of blade (4) one end is to the front lateral bend of blower fan main shaft (7); Blade (4) is connected and installed with two slide blocks (15) near the end of central frame housing (5) by universal joint (14), and two slide blocks (15) lay respectively at sharf (13) both sides;
Front baffle housing (2) and afterframe housing (6) are equipped with slideway; Two slide blocks (15) of each blade (4) end are assemblied in respectively in the slideway of front baffle housing (2) and afterframe housing (6); Between each slide block between each slide block in front baffle slideway and in afterframe slideway, all connect by curved rod;
Controlling device comprises several adjusting motors, stay cord or pull bars; Each motor that regulates is connected with the curved rod in curved rod and afterframe slideway in front baffle slideway by stay cord respectively, or adjusting motor connects front baffle and afterframe by pull bar.
2. a kind of horizontal axis wind-driven generator quant shape blade according to claim 1 and the scalable wind wheel of drum type, is characterized in that: the adjusting motor of described controlling device respectively equal angle is arranged on front baffle inside casing (10) and afterframe inside casing; The strut (11) of front baffle and afterframe is hollow lever; Curved rod in front baffle housing (2) slideway is connected with array rope, respectively organizes rope corresponding with the adjusting motor that is arranged on front baffle inside casing respectively; Every group of rope forms by two stay cords, and through the front baffle strut body of rod of hollow, two stay cord reverse-windings connect the power take-off mechanism of corresponding adjusting motor;
Curved rod in afterframe housing (6) slideway is connected with array stay cord, respectively organizes stay cord corresponding with the adjusting motor that is arranged on afterframe inside casing respectively; Every group of rope forms by two stay cords, and through the afterframe strut body of rod of hollow, two stay cord reverse-windings connect the power take-off mechanism of corresponding adjusting motor.
3. a kind of horizontal axis wind-driven generator quant shape blade according to claim 1 and the scalable wind wheel of drum type, it is characterized in that: the adjusting motor of described controlling device respectively equal angle is arranged on the blower fan main shaft (7) of forward and backward framework both sides, and the power take-off mechanism of each adjusting motor connects pull bar by turbine and worm device or hydraulic pressure installation respectively; The each pull bar the other end that regulates motor to be connected with front baffle side is connected with front baffle; The each pull bar the other end that regulates motor to be connected with afterframe side is connected with afterframe.
4. a kind of horizontal axis wind-driven generator quant shape blade according to claim 1 and the scalable wind wheel of drum type, is characterized in that: described front baffle housing (2) edge is equipped with trumpet-shaped collection wind along (1).
5. a kind of horizontal axis wind-driven generator quant shape blade according to claim 1 and the scalable wind wheel of drum type, is characterized in that: in the axis hole of described blade (4), be provided with screw thread, sharf (13) passes through screw-thread fit with blade (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061454.XA CN103883465B (en) | 2014-02-24 | 2014-02-24 | There is the horizontal axis wind-driven generator of quant shape blade and the scalable wind wheel of drum type |
| PCT/CN2014/077518 WO2015123924A1 (en) | 2014-02-24 | 2014-05-14 | Horizontal-axis wind driven generator provided with paddle-shaped blade and drum-shaped extendable wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061454.XA CN103883465B (en) | 2014-02-24 | 2014-02-24 | There is the horizontal axis wind-driven generator of quant shape blade and the scalable wind wheel of drum type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883465A true CN103883465A (en) | 2014-06-25 |
| CN103883465B CN103883465B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410061454.XA Active CN103883465B (en) | 2014-02-24 | 2014-02-24 | There is the horizontal axis wind-driven generator of quant shape blade and the scalable wind wheel of drum type |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103883465B (en) |
| WO (1) | WO2015123924A1 (en) |
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| CN102619696A (en) * | 2012-04-13 | 2012-08-01 | 张效新 | Boat-shaped blade vertical axis wind turbine generator |
| CN102996354A (en) * | 2012-11-27 | 2013-03-27 | 徐建伟 | Low-cost belt transmission wind turbine generator |
| CN203770018U (en) * | 2014-02-24 | 2014-08-13 | 张效新 | Horizontal-axis wind turbine with paddle-shaped blades and drum-type retractable wind wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103883465B (en) | 2016-03-23 |
| WO2015123924A1 (en) | 2015-08-27 |
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Address after: No. 1608, 16th Floor, No. 11 Gongye East Street, Qiaodong District, Zhangjiakou City, Hebei Province, 075000 Patentee after: Fresh Energy Technology Zhangjiakou Co.,Ltd. Address before: No. 1608, 16th Floor, No. 11 Gongye East Street, Qiaodong District, Zhangjiakou City, Hebei Province, 075000 Patentee before: QINGXIN ZHANGJIAKOU ENERGY SCIENCE & TECHNOLOGY CO.,LTD. |
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Denomination of invention: Horizontal axis wind turbine with paddle shaped blades and drum shaped extendable rotor Granted publication date: 20160323 Pledgee: Zhangjiakou Rural Commercial Bank Co.,Ltd. Shengli Road Branch Pledgor: Fresh Energy Technology Zhangjiakou Co.,Ltd. Registration number: Y2024980033530 |
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