KR100961814B1 - A rotor structure for wind propulsive power generators - Google Patents

Abstract

PURPOSE: A rotor structure for a wind power generation system is provided to improve rotating efficiency by overlapping multiple blades in a rotator body in which a first body and a second body are coupled. CONSTITUTION: A rotor structure for a wind power generation system has a rotator drum(21) and blades(24). The rotator drum is formed by coupling a conical shaped first body and a second body and is rotated with a rotary shaft by wind flowing from first openings. One end of the blades is coupled to the first body, and the other end is coupled to the second body. Second openings are formed in the rear ends of the blades in order to discharge wind.

Description

Rotor structure for wind power generation system

The present invention relates to a rotor structure of a wind power generation system, and more particularly, a capsule (UFO model) -type rotating body joined in a regular manner by unfolding two conical shapes made of hard plate material with the same outer circumference. The rotor structure of the wind power generation system is provided with a plurality of blades integrally at the edge of the drum to receive the thrust of the flow rate to improve the rotational efficiency.

As is well known, large hydro, thermal and nuclear power plants require large-scale power generation facilities, and thermal power plants require large amounts of fuel (e.g., energy such as oil and coal) to operate the plant. In order to solve this problem, wind power generation, which does not need a separate fuel, is emerging as an alternative.

The wind power generation is one of the economical and economical methods of pollution with power generation, wave power and tidal power generation using solar energy, and refers to a power generation system using wind power.

In the wind power generation, there is no waste, and the propeller type impeller is generated by rotating the generator spindle. Therefore, the propeller type impeller (also called blade or rotary) is evaluated for its structure and rotational performance.

Most of the wind power generation systems studied so far have been based on a horizontal axis turbine suitable for a constant wind, but recently, a vertical axis wind power generation system has been developed to improve the efficiency of power generation facilities by applying a vertical axis turbine structure.

In the conventional vertical axis wind power generation system, as shown in FIG. 10, the blade 1 having the vertical axis 3 as the rotational center axis to be rotated by the wind, and connected to the vertical axis 3 of the blade 1 is connected to the blade (1) and a generator (6) for generating electricity in accordance with the rotation of the vertical axis (3), and is located between the vertical axis (3) and the generator (6) to the rotation speed of the vertical axis (3) to the generator (6) It consists of the transmission 5 which converts into required rotation speed.

Among the above configurations, the blade is a part that rotates by being directly touched by wind, and is a component of the most important part in a wind power generation system. In view of this importance, many studies on blade shape and structure have been conducted.

As for the blades that have been advanced in the past, the conventional blades include a savonius rotor type using two or three square plates bent in a semicircle, and other blades having various shapes have been proposed. come.

However, the conventional rotor of the vertical axis type, that is, the rotor of the wind power generation system having a lot of problems as follows.

First, to date, the vertical axis of the rotating body is a blade with only 1/4 of the area subjected to the thrust in the circular structure, the rotation efficiency is low.

Second, therefore, the low rotational force of the blade is required to solve the unstable disadvantage of not achieving the desired power generation efficiency, and the difficult solution that is impossible for large scale.

Third, even if the wind direction changes from time to time and the blades to increase the flow rate of the low wind power has been studied in many separate equipment methods, such as an uncomfortable device that has to follow the wind direction until now has not been able to solve the shortcomings.

Fourthly, most of the difficulties have been studied because of the complicated devices and heavy problems that are necessary to support the increase of torque.

Fifth, it is regrettable that the installation height, installation radius should be wide, and the need for more installation site, steering device that must follow the flow velocity, and the horizontal axis type that have many disadvantages such as pollution caused by the operation noise are missed. Remains.

Sixth, up to now, the rotating body has not been a structure that can be commonly used in winds with different mass of natural flow.

The present invention was conceived in view of the above problems, the resistance of which is the lowest rotational structure of the capsule (UFO model) drum flywheel with a good rotation rate as a rotating body of the drum in one direction by excluding the resistance on the upper and lower outer surface Photo It is a light and thin plate material that wraps the rotating body drum in a basic configuration that excludes the resistance of the revolving blade revolving vacuum at the same time as the blades of the propulsion guides as a team (joint) to each large blade. It is also compatible with large productions due to its robustness. The purpose of this is to provide a rotor structure of a wind power generation system, which can be laminated, and thus receives more wind thrust.

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In the present invention for achieving the above object, in the rotor structure of the wind power generation system for rotating the rotary shaft of the generator with wind power,

A rotating body drum in which the same conical first body and the second body are joined to each other in a vertical symmetry, and a central portion thereof is coupled to the rotating shaft to rotate together with the rotating shaft;

One edge is joined to the first body and the other edge is joined to the second body, and a first opening through which wind is introduced is formed at the front end thereof, and a second opening narrower than the first opening is formed at the rear end thereof. With a double braid through which the introduced wind is discharged,

The rotating body drum is rotated by the wind flowing into the first opening.

The rotor structure of the present invention is formed in the shape of a plate that is elastically deformable and positioned on the outside of the pair of braids, one edge is bonded to the first body and the other edge is bonded to the second body, the upper and lower central portions of the rotor structure A partially cut portion is formed along the circumferential direction of the rotating body drum, and the wind discharged from the second opening is introduced, and the cut portion is elastically deformed according to the intensity of the introduced wind so that the inflowed wind is opened. Characterized in that it further comprises a control blade to be discharged through.

The rotor structure of the present invention is located outside the control blade, one edge is joined to the first body, the other edge is joined to the second body, and the rear end is joined to the rotating body drum, and the rear end thereof is closed. It is characterized in that the front blade is further provided with an inlet formed inlet for the wind inlet.

In the rotor structure of the present invention, each rear end enters the pair of braids, and is symmetrically joined to the first body and the second body, respectively, and a third opening through which wind is introduced into each of the front ends is formed, The fourth opening is smaller than the third opening, and a pair of big blades through which the introduced wind is discharged is further provided.

The rotor structure of the present invention is characterized in that the hollow pipe is welded and fixed along the junction of the first body and the second body, and the tubing is formed at regular intervals in the pipe.

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First, the rotor structure of the present invention has a plurality of blades (23, 24) on the central circumferential edge of the rotary drum (21) in which two conical first bodies (21a) and second bodies (21b) are joined symmetrically. By being provided with (25) and (26) in an overlapping manner, the inflow of wind is made efficient so that the rotational efficiency is improved.

Second, the wind outlet is narrower than the wind inlet of each blade 23, 24, 25 to receive the thrust, and additional rotational force by causing a portion of the wind discharged to the outlet of each blade hit the inner wall surface of the other blade By providing this, high rotational efficiency can be obtained.

Third, according to the present invention, the wind direction possible from the vertically upper and lower inclined outer surface of the rotating body drum 21 and the vertically upper and lower 80 ° to 160 ° radius of both sides of the flywheel 27 is driven by the wind that is collected by being pushed along the inclined surface at the center of weak power efficiency. Thrust is concentrated on a wide blade on the outer side with good efficiency, and the rotating body drum is displayed at high speed.

At this time, the thrust passage accelerated from the inside of the big blade to the passage where the wind is narrowed becomes the blade by the reverse emission power. do.

In particular, the wind is to take advantage of the passage that allows the wind thrust passing in consideration of the characteristics of the path is blocked, each blade obtains a high efficiency of the rotational force and rotational speed of the dual role.

Therefore, the rotating body according to the present invention is the rotational resistance is excluded by inclining in one direction a plurality of large and small blades wrapped at equal intervals on the upper and lower surfaces of the capsule-shaped drum having the most excellent rotational conditions, and to obtain a rotational force by the reverse propulsion blade In addition, all of the thrust of the wind from the upper and lower slopes of the drum and both sides of the flywheel can achieve high rotational efficiency by increasing the speed of the double rotational force.
If the same capsule drum lightly stacked on the same axis can be further increased the rotation rate is to significantly improve the power generation efficiency by the increased rotational force and rotational speed by obtaining a greater rotational force and rotational speed.

The rotor structure of the present invention is a capsule (UFO model) drum shape having a low rotational resistance and a structurally high rotational efficiency, and having a rotating drum 21 which is coupled to the rotating shaft 20 of the generator and rotated.

Referring to FIG. 1, the rotating shaft 20 is hollow, and a fixing main shaft 31 fixed to a fixed body (not shown) is coupled to the hollow of the rotating shaft 20 so that the rotating shaft 20 can be stably rotated. do. At this time, the bearing 22 is coupled between the rotating shaft 20 and the fixed spindle 31 to enable a smooth rotation.

That is, the hollow rotating shaft 20 is rotatably coupled by the bearing 22 to the fixed spindle 31, which is erected perpendicularly to a fixed body such as a floor, and the rotating shaft 20 is connected to the shaft of the generator 50. It is connected by a gear or a chain so that the rotational power of the rotating body drum 21 is transmitted to the shaft of the generator 50.

On the outer surface of the rotating drum 21, a plurality of large and small blades 23, 24, 25, 26 are formed at equal intervals and are inclined in one direction so as to surround some outer surfaces of the rotating drum 21. do.

The rotor structure of such a structure improves the rotational force as compared with the rotating body (rotor, blade, etc.) of the conventional wind power generation system.

7 and 8 show the rotor structure of the first embodiment in plan view, FIG. 1 shows the rotor structure of the second embodiment in perspective view, and FIG. 9 shows the rotor structure of the third embodiment in perspective view.

Differences in the first, second, and third embodiments are different in the shape and number of the blades joined to the rotating body drum 21, thereby causing a difference in the rotational force of the rotating body drum 21. The difference between the second and third embodiments will be described later.

Referring to FIGS. 7 and 8 showing the rotor structure of the first embodiment, the rotor structure is coupled to the rotating shaft 20 of the generator 50 as in the embodiment of FIG. 1 so as to be rotated by wind power.

The rotor structure includes a rotating drum 21 and a double blade 24 joined to the rotating drum 21.

The rotating body drum 21 is formed by joining the same conical first body 21a and second body 21b in vertical symmetry as shown in FIGS. 2 to 4, and a central portion thereof is coupled to the rotating shaft 20. It is rotated together with the rotation shaft 20.

In addition, a hollow pipe 28 is welded and fixed along the junction of the first body 21a and the second body 21b, and a tube 29 is formed in the pipe 28 at a predetermined interval. . The vent 29 is formed on the outside of the piping 28 as shown in FIGS. 6 and 11.

The rotatable drum 21 is a so-called 'goggle' shape, even though the rotational resistance is minimum, and by forming the flywheel 27 to reduce the resistance is further increased the effect of the rotation efficiency.

The capsule-type rotating body drum 21 is made of the same conical shape as a hardwood plate, and the circumference of the same base is spread out to the outer diameter of the same width, but joined to the right, and the pipe ring on the flywheel 27 toward the outer diameter ( 28) is a bonded structure, which serves to help the rotation by the rotation balance function.

Therefore, the inner passage of the piping 28 is connected to the inner spaces of the respective blades described below through the through hole 29, so that a part of the wind flowing into each of the blades through the through hole 29 ) Is utilized to increase rotation.

As shown in FIGS. 5, 7, 8, and 11, the double blade 24 has one side edge 24a bonded to the first body 21a and the other side edge 24b has the second body 21b. The first opening 24c is joined to the front end, and the second opening 24d narrower than the first opening 24c is formed at the rear end thereof.

The rotor structure is compressed by moving the wind flowing into the first opening 24c into the second opening 24d to generate wind power to rotate the rotating body drum 21.

For example, if the second opening 24d is closed, when a sudden wind such as a gust occurs, the wind flowing into the first opening 24c is returned to the first opening 24c again, that is, the double blade 24 Reverse wind occurs inside) and rotational efficiency decreases.

Therefore, in the exemplary embodiment of the present invention, the second opening 24d is formed at the rear end of the double blade 24 to reduce the occurrence of backwind.

In addition, as a structure to reduce the occurrence of the reverse wind as described above, as shown in Figs. 5 and 11 by forming the double blades 24 to the elastic metal plate and forming the cutout (24e), a sudden wind such as gusts are generated In this case, as the cutout 24e is elastically opened by the strong wind flowing into the first opening 24c, some wind is discharged to the cutout 24e, so that the occurrence of the reverse wind can be reduced.

In the first embodiment, the control blade 25 is positioned outside the double blade 24.

The control blade 25 has a structure similar to the double blade 24 as shown in FIG. 11. Referring to FIGS. 5 and 7, the control blade 25 is formed in a plate shape capable of elastic deformation, and one edge 25a of the control blade 25 is formed in the first blade. Joined to the body (21a) and the other edge (25b) is joined to the second body (21b), the incision portion 25e which is partially cut along the circumferential direction of the rotating body drum 21 in the upper and lower central portion And the wind discharged from the second opening 24d is introduced, and the cutout 25e is elastically deformed and opened according to the intensity of the introduced wind (when a strong wind is generated). It has a structure that can be discharged through the cutout 25e.

At this time, the control blade 25 has an inlet through which the wind discharged through the second opening 24d of the double blade 24 and an outlet through which the introduced wind is discharged are formed, and the outlet is narrower than the inlet.

In addition, in the first embodiment, an outpost blade 26 is disposed outside the control blade 25 and bonded to the rotating body drum 21.

5 and 7, the edge 26a is joined to the first body 21a and the other edge 26b is joined to the second body 21b. An end 26c is joined to the rotating drum 21 so that the rear end 26c is closed, and an inlet 26d through which wind is introduced is formed at the front end thereof.

The outpost 26 is located at the rear end of the plurality of blades as described above, so that the rear end 26c is closed, and the wind wind of the introduced wind is finally acted on.

In addition, the first embodiment includes a big blade 23 positioned inside the double blade 24.

The big blades 23 have a pair of structures that are respectively bonded to the first body 21a and the second body 21b as shown in the structure 23 of FIG. 9.

5 and 7, the rear end of each of the big blades 23 enters the twin blades 24 and is symmetrically joined to the first body 21a and the second body 21b, respectively. A third opening 23c through which wind is introduced is formed at each tip, and a fourth opening (not shown) smaller than the third opening 23c is formed at each rear end.

In the first embodiment of FIG. 7 and FIG. 8, the rotating body drum 21 includes four blades, such as the big blade 23, the double blade 24, the control blade 25, and the outpost blade 26. Joining was configured in three sets on the outer side of the).

Both edges of each of the blades 23, 24, 25, and 26 are bonded to the first body 21a and the second body 21b, respectively, as shown in FIG. The blade 26 is also joined to the rear end is closed.

Each of the blades 23, 24, 25, and 26 is joined to cover a portion of the rotating body 21, the flywheel 27, and the outer diameter of the pipe 28 at an inclination of about 40 °.

3 and 6 are some views for explaining the lines of passages in the capsule drum flywheel 27 and the piping 28 of the encapsulated specifically in the present invention. As shown in the drawings, a passage 30 is formed between the rotating body 21 and the inside of the big blade 23. That is, the passage 30 connects the third opening 23c and the fourth opening (not shown) of the big blade 23 to each other.

The rotor structure having the above configuration has four blades, such as the big blade 23, the double blade 24, the control blade 25, and the outpost blade 26, which are one set, and the outside of the rotating body drum 21. Since the three-sided joining structure is configured, when the low-speed wind is thrust in any direction, the big blade 23 is rotated and the wind passes through the internal passageway 30, whereby each blade receives the wind. The pressure of the wind flowing into the passage of the (23, 24, 25, 26) is acted to improve the rotational efficiency of the rotating body drum (21).

A very partial passage of the flywheel 27 and the big blade 23 is characterized by the passage role of a plurality of lines to pass the wind just as seen in the cross-sectional view (Fig. 6).

In particular, the present invention, as shown above, the wind is a blade that is propelled by the flow rate thrust pushing the inside of the blade from the inclined outer surface of the rotating body 21, the wind of 160 ° radius up to 80 degrees based on the flywheel 27 The efficiency of rotation is much higher due to the structure.

Referring to FIG. 8 showing a schematic diagram of the action of the wind, the solid arrow (→) indicates the path through which the wind enters thrust into each of the blade inner passages 30 and shows the role of the blades being pushed into the passages 30. It is explanatory drawing.

In the present invention, the natural wind is passed through each of the blade inner passages 30 formed on the edge of the rotating body drum 21 as described above in consideration of the physical properties to go back from the front if there is an obstacle in the front of the path and weak wind in the center The power is thrust with a strong flow speed from the inclination of the rotating body drum 21 to the outer blade.
At this time, as the wind passes through the inside of the big blade 23 formed as a pair, the blade is utilized in a wider volume of thrust, and the thrust passing through the narrow passageway is continued as the blade propels to the guide inlet exit. To increase torque.
Therefore, the thrust blade has the effect of two stone two to increase the rotational force to the blade of the propulsion through the wind passing outward.
For example, referring to FIGS. 7, 8, and 11, the wind entering through the third opening 23c of the big blade 23 having the large inlet is discharged through the fourth narrow opening (not shown). Part of the wind discharged passes through the passage 30 of the pair blades 24 to the second opening (24d) and the other part impinges the rotational force impinging on the inner wall surface of the pair blades (24).
This phenomenon is also generated between the pair blade 24 and the control blade 25. That is, referring to FIG. 8, a part of the wind discharged to the second opening 24d of the pair blade 24 passes through the inner passage of the control blade 25, and the remaining part of the wind W passes through the control blade 25. While impinging on the inner wall surface of the control blade 25 to give a rotational force.
In particular, in the present invention, in contrast to the purpose of the application to the guide double passage (a plurality of passages 30 according to the installation of a plurality of blades) in contrast to the purpose of the wind as shown above, the speeding when there is a gust or a storm In order to prevent this, the thrust control device was installed on the control blade 25 (straight display) to automatically adjust the speed of inertia (elastic restoration).
That is, in the control blade 25, as shown in Figs. 5 and 7, by forming a cutout 25e, when the strong wind, such as a gust or a storm flows into the cutout 25e is elastically deformed and opened to the introduced wind Part of the gas is discharged to the outside to prevent the rotation speed from changing suddenly.
The rotor structure of the present invention having the above configuration has a plurality of blades 23 at the central circumferential edge of the rotating body drum 21 in which two conical first bodies 21a and the second bodies 21b are symmetrically joined. Since the 24, 25, and 26 are provided in an overlapping manner, the inflow of wind is efficiently performed to improve the rotational efficiency.
In particular, the wind outlet is narrower than the wind inlet of each of the blades (23), (24) and (25) to receive the thrust, and the additional rotational force by causing a portion of the wind discharged to the outlet of each blade hit the inner wall surface of the other blade By providing this, high rotational efficiency can be obtained.
Meanwhile, in the second embodiment as shown in FIG. 1, the pair blades 24 of the first embodiment are provided in pairs up and down symmetrically as in the big blade 23, and the third embodiment as shown in FIG. In the embodiment, the outpost blade 26 is omitted.
Operations of the second and third embodiments are similar to those of the first embodiment, and thus detailed description thereof will be omitted.
On the other hand, the present invention is used as in the above in the use of tidal power or wave force in the hydraulic power, but water has a small role as the inverse propulsion blade due to the inertia of the self-weight and material, but the distance of the blade with reference to the self-weight It is possible to reduce the rotational resistance and obtain high rotational efficiency by acting to exclude the phenomenon of being caught in the vacuum of the revolving blade by the adjustment of the angle and the entry / exit (dotted line) path 30.
Therefore, unlike the wind power is transmitted to the generator 50 by the rotation transmission of the rotary shaft 31 to the transmission 40 to the upper portion of the rotary shaft.

1 is a perspective view showing a rotor structure according to a second embodiment of the present invention;

2 is a perspective view showing a first body of a rotating drum;

3 is an exploded side view of the rotating drum, Figure 4 is a side view of the rotating drum,

5 is an exploded view of blades installed in the present invention;

Figure 6 is a cross-sectional view showing the passage of the piping and blades to the guide passage of the flywheel of the rotating body drum according to the present invention,

7 is a plan view showing the rotor structure of the first embodiment;

8 is an operation explanatory diagram of FIG. 7;

9 is a model photograph of a third embodiment of the present invention;

10 is a schematic diagram illustrating a blade structure of a conventional wind power generation system;

Fig. 11 is a schematic view illustrating an installation state of the pair blades of the first embodiment.

Description of the Related Art

21: rotating drum 23: big blade 24: pair blade

25: control blade 26: outpost blade 27: flywheel

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Claims (6)

In the rotor structure of the wind power generation system for rotating the rotary shaft of the generator to wind power, Rotating body drum 21 in which the same conical first body 21a and second body 21b are formed by being symmetrically joined together, and a central portion thereof is coupled to the rotating shaft 20 to rotate together with the rotating shaft 20. and; One edge is joined to the first body 21a and the other edge is joined to the second body 21b, and a first opening through which wind is introduced is formed at the front end thereof and narrower than the first opening at the rear end thereof. Two openings are formed and the twin blades 24 through which the introduced wind is discharged; The rotor structure of the wind power generation system, characterized in that the rotating drum (21) is rotated by the wind flowing into the first opening. According to claim 1, wherein the outer side of the pair of braid 24 is formed in a plate shape capable of elastic deformation, one edge is joined to the first body (21a) and the other edge is the second body (21b) It is joined to the upper and lower center portion, the incision portion 25e is partially cut along the circumferential direction of the rotating drum 21 is formed, the wind discharged from the second opening is introduced and the intensity of the introduced wind Rotor structure of the wind power generation system characterized in that it further comprises a control blade (25) for opening the inlet portion 25e is elastically deformed so that the inlet wind is discharged through the incision portion 25e . According to claim 2, It is located outside the control blade 25, one edge is bonded to the first body 21a, the other edge is bonded to the second body 21b, the rear end of the rotating body The rotor structure of the wind power generation system, characterized in that it is further attached to the drum 21, the rear end thereof is closed, the outpost blade (26) formed with an inlet (26d) through which the wind is introduced. According to claim 3, Each rear end is entered into the pair of braids 24, The first body 21a and the second body 21b are respectively symmetrically bonded to each other, the wind is introduced into each end The rotor structure of the wind power generation system, characterized in that the three holes are formed, and each of the rear end is formed with a fourth opening smaller than the third opening is a pair of big blades (23) through which the introduced wind is discharged. delete The hollow pipe 28 according to any one of claims 1 to 4, wherein the hollow pipe 28 is welded and fixed to the pipe 28 at regular intervals along the junction of the first body and the second body. Rotor structure of the wind power generation system, characterized in that formed.

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