CN201297235Y

CN201297235Y - Vertical axis wind motor blade wheel

Info

Publication number: CN201297235Y
Application number: CNU2008202210856U
Authority: CN
Inventors: 陈卫; 潘栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-19
Filing date: 2008-11-19
Publication date: 2009-08-26
Anticipated expiration: 2018-11-19

Abstract

The utility model provides a vertical axis wind motor blade wheel, comprising a wheel hub, paddle frameworks, a blade and a blade shaft provided with the blade. Said wheel hub thereon is fixedly fixed with four groups of paddle frameworks on which at least two blade frames are arranged, and said blade shaft is mounted on said blade frame. The blade wheel further comprises a regulation control device that is arranged on the blade shaft. Said blade is at the upper portion of the blade shaft, the area of the upper portion is larger than that of the lower portion. Said paddle framework is fan-shaped and the two ends of said blade shaft are provided with a limiting shaft bumper, respectively. Said blade shaft is horizontally mounted on said blade frame. The vertical axis wind motor blade wheel has a simple structure, scientific and rational design, and high utilisation ratio of wind energy.

Description

The vertical axis windmill impeller

Technical field

The utility model relates to a kind of wind energy conversion system, specifically, relates to a kind of vertical axis windmill impeller.

Background technique

The history in existing thousands of years of the utilization of wind energy, at present, wind-power electricity generation has been obtained conspicuous achievement, China's Wind Power Utilization in recent years also enters the fast-developing stage, the wind power generating set of operation is a mainstream model with horizontal axis three paddle wind energy conversion systems at present, the existing 1500KW of this type enters commercial operation, is subjected to the restriction of horizontal axis paddle, and horizontal-shaft wind turbine is very difficult to big capacity development again; There is following deficiency in the horizontal-shaft wind turbine paddle: 1, single paddle is bulky, and quality is heavy, complex structure, and manufacturing, transportation, installation difficulty are big; 2, the seizure wind energy efficiency is low, and incision wind speed height has cut-out wind speed, and power characteristic is poor; 3, the tower tube is high, and cabin height, capital equipment have limited the development of big capacity unit in the cabin, and operation maintenance is difficult for; 4, need wind vane, wind meter, yaw system, untie the mooring rope the control program complexity; 5, capital equipment is in the cabin, measures, monitor data is many, control system is complicated, the outage probability height; 6, paddle cost height, unit cost height.

Just with research direction directed in orthogonal axle large scale wind power machine, the key point of vertical axis windmill then is a blade to a lot of scientific research institutions in the whole world; In order to capture this difficult problem, people are seeking a kind of new technical solution always.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, thereby a kind of simple in structure, design science is reasonable, wind energy utilization is high vertical axis windmill impeller is provided.

The purpose of this utility model is to realize by following technological scheme:

A kind of vertical axis windmill impeller, this impeller comprises wheel hub, slurry skeleton, blade and the vaned sharf of installation, be fixed with at least four groups slurry skeleton on the described wheel hub, described slurry skeleton is provided with at least two blade frames, and described sharf is installed on the blade frame.

Based on above-mentioned, this impeller also includes the adjusting control mechanism, and described adjusting control mechanism is arranged on the sharf.

Based on above-mentioned, the area that described blade is positioned at sharf top is positioned at the area of sharf bottom greater than described blade.

Based on above-mentioned, described slurry skeleton is fan-shaped.

Based on above-mentioned, described sharf two ends are provided with the position-limited shaft shelves.

Based on above-mentioned, described sharf level is installed on the blade frame.

The utility model has substantive distinguishing features and progressive with respect to prior art, specifically, and this vertical axis windmill impeller advantage:

1), the blade manufacturing process is simple, make, transportation, installation, maintenance are convenient;

2), blade quantity is the amount doesn't matter, blade area is changeable, flexible design, convenience;

3), the incision wind speed little, no cut-out wind speed, the reception wind energy many, the wind energy utilization height;

4), motor volume is unrestricted, need not speedup box, mechanical loss is few;

5), control strategy is simple, improves reliability, improves Utilization ratio;

6), need not driftage, untie the mooring rope the minimizing controlling unit;

7), the impeller manufacture cost reduces, wind energy conversion system is formed this reduction;

8), be convenient to promote, popularize.

Description of drawings

Fig. 1 is the structural representation of installing and using of the present utility model;

Fig. 2 is the mounting structure schematic representation of slurry skeleton described in the utility model and blade, sharf;

Fig. 3 is the structural representation of blade described in the utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

As shown in Figure 1, a kind of vertical axis windmill impeller, this impeller comprise wheel hub 1, slurry skeleton 2, blade 3 and the sharf 4 of blade 3 are installed;

Be fixed with four groups of slurry skeletons 2 on the described wheel hub 1, described slurry skeleton 2 is provided with at least two blade frames 5, and described sharf 4 levels are installed on the blade frame 5.

Based on above-mentioned, as shown in Figure 2, described slurry skeleton 2 is the steel framework, is fan-shaped; Can be according to fan capacity, area size and strength, size, the shape of design slurry skeleton 2;

This impeller also includes regulates control mechanism 7, and described adjusting control mechanism 7 is arranged on the sharf 4; Described adjusting control mechanism 7 is actuators of control system, and the revolution space to blade under the instruction of computer limits, and to reach control blade rotational speed and power thereof, guarantees unit safety, reliable operation; Can spend the angle of any adjusting vane 3 between-90 degree 0, promptly control blade and make its rotational angle range between direction parallel to the ground and direction perpendicular to the ground.

Described sharf 4 two ends are provided with position-limited shaft shelves 6, so that the horizontal activity space of blade 3 is subjected to the restriction of described position-limited shaft shelves 6, simultaneously, but the rotation angle of limit blade 30 the degree-90 the degree between, even the blade rotation scope is between direction parallel to the ground and direction perpendicular to the ground.

Based on above-mentioned, as shown in Figure 3, described blade 3 one sides are cambered surface; The area that described blade 3 is positioned at sharf 4 tops is positioned at the area of sharf 4 bottoms greater than described blade 3.

Described wheel hub 1 is a steel structure, is cylindric.

In the blade frame 52 that constitute by the slurry skeleton, that shape differs rotatable blade 3 is installed.

Described blade 3 is the critical components of catching wind energy, can be made by GFRP material, plastics or canvas etc., and its shape is decided by size, the shape of the blade frame 5 on the slurry skeleton 2; Blade 3 is connected by sharf 4 with slurry skeleton 2, and sharf 4 and ground level be arranged in parallel, and blade 3 can rotate according to sharf 4, and the area that blade 3 is positioned at sharf 4 tops is positioned at the area of sharf 4 bottoms greater than blade 3.

During use, as shown in Figure 1, described wheel hub 1 center is connected with macro-axis 8, and described macro-axis 8 is connected with generator 9, and described wheel hub 1, described generator 9 are installed on the fixing frame 10; When wind-force reached 1-2m/s, impeller started, and when wind-force reached 6-8m/s, the motor output power reached rating value, and wind speed is during greater than 8m/s, and control system starts, and keeps rating value.

It should be noted that in the design:

1), the motor macro-axis is difficult for longly, notes the design of hub height;

2), note noise reduction;

3), note overcoming the power that the wind wheel side makes progress.

The method of operation is:

1), the overhaul of the equipments state: wind size no matter, wind wheel all will keep transfixion, at this moment the control system operation control makes blade rest on horizontal position, blade is the space without spin, the brake of macro-axis band-type brake.

2), operation: the macro-axis band-type brake unclamps, and control system is decontroled controller fully, and blade can be rotated in 90 degree spaces, because area is big on the sharf, quality heavy, sagging naturally, impeller does not have stressed when calm; Blow and reach when starting wind speed, because the big cause of area on the sharf, leeward blade is translated into the vertical position by wind and is received maximal wind-energy, wind wheel rotates around the vertical shaft clockwise direction, blade is against the wind then translated into horizontal position by wind, the resistance of wind is dropped to minimum, when wind greatly when making wheel speed surpass rated speed, control system starts, the angle of swing of blade is dwindled, reduce receiving wind energy, wind is bigger, the angle of swing of blade is littler, makes impeller keep rated speed.

3) shut down: at first operation control system makes the angle of rotation of blade be contracted to zero, the blade face level, and rotating speed reduces, and starts the brake of macro-axis band-type brake then.

Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characteristics is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope that the utility model asks for protection.

Claims

1, a kind of vertical axis windmill impeller, it is characterized in that: this impeller comprises wheel hub, slurry skeleton, blade and the vaned sharf of installation, be fixed with at least four groups slurry skeleton on the described wheel hub, described slurry skeleton is provided with at least two blade frames, and described sharf is installed on the blade frame.

2, vertical axis windmill impeller according to claim 1, it is characterized in that: this impeller also includes the adjusting control mechanism, and described adjusting control mechanism is arranged on the sharf.

3, vertical axis windmill impeller according to claim 1 is characterized in that: the area that described blade is positioned at sharf top is positioned at the area of sharf bottom greater than described blade.

4, vertical axis windmill impeller according to claim 1 is characterized in that: described slurry skeleton is fan-shaped.

5, according to claim 1 or 2 or 3 described vertical axis windmill impellers, it is characterized in that: described sharf two ends are provided with the position-limited shaft shelves.

6, vertical axis windmill impeller according to claim 1 is characterized in that: described sharf level is installed on the blade frame.