WO2018008798A1

WO2018008798A1 - Blade structure for generator

Info

Publication number: WO2018008798A1
Application number: PCT/KR2016/010145
Authority: WO
Inventors: 원상묵
Original assignee: 주식회사 미래에너지
Priority date: 2016-07-07
Filing date: 2016-09-09
Publication date: 2018-01-11
Also published as: KR101784728B1

Abstract

A blade structure for a generator, according to one embodiment of the present invention, comprises: a main body part having a generator placed therein; a vertical rotating shaft vertically positioned on the lower part of the main body part, wherein one side of the vertical rotating shaft is connected to the generator; and a plurality of blade parts connected to the vertical rotating shaft, thereby transmitting torque to the vertical rotating shaft. The plurality of blade parts respectively have: a modular column member coupling to the vertical rotating shaft in modular units; a plurality of rotation transmission shafts connected to the modular column member so as to be rotatable at a predetermined angle, and spaced apart from each other at 120° intervals; and a plurality of blades each coupled to the plurality of rotation transmission shafts respectively so as to be partitioned, with respect to the part where the rotation transmission shaft is installed thereat, into a first blade plate part, and a second blade plate part having the same weight as the first blade plate part and having an area that is larger than the area of the first blade plate part, and thus, preferably, the plurality of blades rotate about the rotation transmission shafts at a predetermined angle by means of the weight balance between the first blade plate part and the second blade plate part.

Description

Generator blade structure

The present invention relates to a blade structure for a generator, and more particularly to a blade structure for a generator for converting tidal energy or wind energy into electrical energy through a blade rotated by algae or wind.

Currently, most of the energy sources we use today, such as petroleum, coal and uranium, are raw materials that cannot be reused once used. The problem is that the reserves of these raw materials are limited. Petroleum, the most dependent of modern industrial society, is expected to continue to decrease in production and depletion in the future.

In order to prepare for such a shortage of energy resources, research on renewable energy is being actively conducted. Such renewable energy includes solar energy, wind energy, and marine energy. The ocean energy is tidal power generating electricity by using the rising and falling movement of sea level caused by the tidal phenomenon of the solar system, and by installing a turbine where the flow of tidal current is fast in coastal areas generated by the tidal phenomenon, Floating algae power generation using

Tidal power generation produces electric power by creating dams and using the free fall between George and the Sea to generate rotational force on water wheels and converting them into electrical energy by generators directly connected to the water wheels.

Tidal power generation requires electricity to generate seawater by blocking the dam to store seawater and rotating the aberrations using the free fall. Therefore, to create a seawater dam, the cost of investment and the environmental protection of conflict due to the construction of a power generation dam related to local residents and marine water resources An alternative to all the problems of conflict with local residents and environmental groups in Esau is algae development.

Algae power generation is a kind of renewable energy. The tidal resources generated by tides are rich, constantly regenerated, distributed in a wide range of areas, clean and free of greenhouse gas emissions. It is a promising alternative energy source for the depletion of the same fossil fuel. Korea is a peninsula country consisting of three sides of the sea, and has natural environmental conditions that can easily use algae development.

Algae power generation is generated by using algae that are available on the southwest coast of Korea, where the tidal phenomenon, the natural energy of the solar system, is predominant.

The characteristic of algae power generation is that seawater uses algae of seawater about 840 times more dense than air, so the amount of power generation is proportional to the density, so even if a small aberration (blade) is used, it can produce more energy than wind power. .

Unlike tidal power generation, tidal power generation does not require dams and is only generated by using tidal flow to freely distribute seawater. Therefore, tidal power generation has little effect on the surrounding coastal marine environment.

In addition, tidal power generation is an eco-friendly power generation method where initial investment cost is lower than tidal power generation. It is installed in the coastal area where tidal current is fast, and it is developed by using stable algae as a friendly marine energy source. It is emerging as a good alternative energy source to cope with climate change agreements by reducing the use of fossil fuels and reducing greenhouse gases. Natural tidal phenomena can be accurately predicted in the long term, and the big advantage of algal power generation is that unlike other renewable energy sources, it is a reliable and clean energy source that can always be operated constantly regardless of seasonal factors or weather and can generate electricity accurately. to be.

Algae power generation is classified into floating algae generation and ground algae generation depending on the installation method. The horizontal horizontal tidal power generation is a propeller-shaped turbine. In general, important facilities are installed on the sea floor, the initial investment cost is high, and the power generation facilities are installed on the sea floor, making operation and maintenance difficult, and the cost is insufficient to secure economic feasibility. There was this. Floating algae generators are generators in addition to vertical shaft algae turbines. It is an economical tidal power generation method that has the advantages of low installation investment cost, safe operation and maintenance, short installation period of tidal current generator installation, and low initial facility investment cost, because it can locate the core gears of the gearbox and major electric power facilities.

An object of the present invention is to provide a blade structure for a generator for converting algae energy or wind energy into electrical energy through a blade rotated by algae or wind.

An object of the present invention is to provide a generator blade structure that is installed perpendicular to the water surface has a structure that is rotated by a tidal current, converting tidal current energy into electrical energy.

It is an object of the present invention to provide a generator blade structure in which main parts such as a generator are installed in a buoyancy body, and thus easy maintenance of main parts such as a generator.

Blade structure for a generator according to an embodiment of the present invention, the main body unit is a generator; Vertically located in the lower portion of the body portion, one side is connected to the vertical rotating shaft generator; And a plurality of blade portions connected to the vertical rotation shaft and transmitting rotational force to the vertical rotation shaft, wherein the plurality of blade portions are rotatable at a predetermined angle to the module pillar member and the module pillar member coupled to the vertical rotation shaft in a module unit. A plurality of rotational transmission axes connected to and spaced apart from each other by 120 °, and having a weight equal to that of the first wingplate portion and the first wingplate portion, based on a portion where the rotational transmission shafts are installed, A plurality of blades, each coupled to a plurality of rotational transmission shafts, are provided so as to be divided into a second wing plate portion having an area, and the plurality of blades are based on the rotational transmission shaft by a weight balance between the first wingplate portion and the second wingplate portion. It is preferable to rotate at a predetermined angle.

In one embodiment of the present invention, the plurality of blades, the plurality of blades of any one blade portion is connected to the vertical axis of rotation by a 30 ° to 90 ° intervals with respect to the plurality of blades of the other blade portion located up and down desirable.

In one embodiment of the present invention, the modular pillar member, a cylindrical pillar coupled to the vertical rotation shaft, a plurality of support shaft portion protruding from the outer peripheral surface of the cylindrical pillar rotatably supporting a plurality of rotation transmission shaft, a plurality of support shaft portion The stopper is formed to protrude on the outer peripheral surface of the stopper is located in the engaging groove provided on the outer peripheral surface of the rotation transmission shaft, it is preferable to limit the degree of rotation of the rotation transmission shaft.

In one embodiment of the present invention, it is preferable that the plurality of blades are each connected to the plurality of rotation transmission shafts inclined at a predetermined angle with respect to the other blade in which one blade is adjacent to each other.

The present invention has a structure that is installed perpendicular to the water surface is rotated by the algae, converts the algae energy into electrical energy, it is possible to produce electrical energy environmentally friendly using natural energy.

In the present invention, the main parts such as the generator is installed on the buoyancy body, it is easy to maintain the main parts such as the generator.

1 schematically shows an installation state diagram in which a blade structure for a generator according to an embodiment of the present invention is installed on a water surface.

Figure 2 schematically shows a bottom view of a blade structure for a generator.

3 schematically illustrates a side view of a blade structure for a generator.

Figure 4 schematically shows a perspective view of a blade unit according to an embodiment of the present invention.

5 schematically shows a plan view of the blade portion.

6 is a schematic side view of the blade portion.

Figure 7 schematically shows an operating state diagram of the blade unit.

8 schematically illustrates a state diagram in which a generator blade structure is installed in a buoyancy body.

9 schematically illustrates a side cross-sectional view of FIG. 8.

Hereinafter, with reference to the accompanying drawings, it will be described for the blade structure for the generator according to the embodiment of the present invention.

Algae energy exists in the form of kinetic energy generated when tides are replaced by tidal action, and this kinetic energy is converted into electrical energy through algae power generation. The present invention is a device for converting algae energy into electrical energy. In this embodiment, for convenience of description, a case in which a generator to which a generator blade structure is applied is installed at a portion where a tidal current occurs will be described. However, the present invention can be applied to wind power in addition to tidal power, if the blade can rotate.

As shown in FIG. 1, the blade structure 100 for a generator according to an embodiment of the present invention includes a buoyancy body 10, a main body 110, a vertical rotation shaft 120, and a plurality of

blades

130 and 140. , 150, 160).

As shown in FIG. 1, the main body 110 is installed above the buoyancy body 10 to protect components such as the generator 115. However, in the present specification, for convenience of description, other components except components except for the generator 115 will be omitted in the detailed description and drawings.

The buoyancy body 10 is an object floating on the water surface 1. The buoyancy body 10 supports the body portion 110. The buoyancy body 10 is to prevent the vertical axis of rotation 120 and the plurality of blades (130, 140, 150, 160, etc.) to sink to the bottom of the sea, a device that induces the flow of floating pants and algae floating on the water surface And is formed in a shape for fixing the blade. 8 and 9, the buoyancy body 10 preferably supports the blade structure 100 for the generator so as not to affect the rotation of the plurality of

blade portions

130, 140, and 150.

As shown in FIGS. 1 to 3, the vertical rotation shaft 120 is positioned below the buoyancy body 10 and is perpendicular to the main body 110. The vertical rotation shaft 120 is connected to the generator 115. A plurality of

blade parts

130, 140, 150, and 160 are installed on the outer circumferential surface of the vertical rotation shaft 120.

At this time, the plurality of

blade portions

130, 140, 150, 160 is the rotational center axis is coaxial with the rotational center axis of the vertical rotational shaft 120, is stacked in series on the vertical rotational shaft 120. The vertical rotation shaft 120 transmits the rotational energy of the plurality of

blade parts

130, 140, 150, and 160 to the generator 115.

The plurality of

blades

130, 140, 150, 160 are rotated in conjunction with each other by a bird, and transmits the rotational force to the vertical rotation shaft 120.

The plurality of

blade portions

130, 140, 150, and 160 are divided into a first blade portion 130, a second blade portion 140, a third blade portion 150, and a fourth blade portion 160. Let's do it. However, the number of installation of the plurality of

blade parts

130, 140, 150, 160 is not necessarily limited thereto, and of course, the variable number of

blades

130, 140, 150, and 160 may be variously changed within a range apparent to those skilled in the art.

As shown in Figures 1 to 3, the plurality of

blades

130, 140, 150, 160 are sequentially coupled to the vertical axis of rotation 120 so as not to hit each other during rotation.

The plurality of

blade parts

130, 140, 150, and 160 are vertically rotated shafts 120 by a 30 ° to 90 ° interval with respect to the plurality of blades of the other blade part in which the plurality of blades of any one blade part are positioned up and down. Is preferably connected to

Specifically, the second blade portion 140 is positioned such that the first blade of the second blade portion 140 is spaced by 30 ° with respect to the first blade 133 of the first blade portion 130.

In addition, the third blade portion 150 is the first blade of the third blade portion 150 is spaced apart by 30 ° with respect to the first blade of the second blade portion 140, the first blade portion 130 1 is positioned to be spaced apart by 60 ° with respect to the blade 133.

Finally, the first blade of the fourth blade portion 160 is the first blade of the fourth blade portion 160 is spaced 30 degrees with respect to the first blade of the third blade portion 150, the second blade portion It is preferably located 60 degrees apart from the first blade of 140 and 90 degrees apart from the first blade 133 of the first blade portion 130.

Since the first blade portion 130 to the fourth blade portion 160 according to the present embodiment have the same structure and the same function, the following description will be made on the first blade portion 130 to avoid repetition of the description. Shall be.

As shown in FIGS. 4 to 6, the first blade unit 130 includes a plurality of

blades

133, 135, and 137, a plurality of

rotation transmission shafts

134, 136, and 138, and a module pillar member 131. Is made of. In this embodiment, the blade portion has a structure that is laminated to the vertical axis of rotation 120 in a module unit by the module pillar member 131.

In the present embodiment, for convenience of description, the plurality of

blades

133, 135, and 137 will be referred to as being divided into a first blade 133, a second blade 135, and a third blade 137. In addition, the plurality of

rotation transmission shafts

134, 136, and 138 will be referred to as being divided into a first rotation transmission shaft 134, a second rotation transmission shaft 136, and a third rotation transmission shaft 138.

The module pillar member 131 is coupled to the vertical rotation shaft 120. The module pillar member 131 receives a rotational force from the first rotation transmission shaft 134 to the third rotation transmission shaft 138 when the first blade 133 to the third blade 137 rotate, and the vertical rotation shaft 120 ). By the module pillar member 131, the blade portion is sequentially stacked on the vertical axis of rotation 120 in module units.

The module pillar member 131 includes a cylindrical pillar 131a, a plurality of support shaft portions 131b, and a stopper 131c.

The cylindrical column 131a is connected to the vertical rotation shaft 120 through the vertical rotation shaft 120. The cylindrical column 131a is preferably coupled to the vertical axis of rotation 120 such that the central axis of the cylindrical column 131a is coaxial with the central axis of the vertical axis of rotation 120.

The cylindrical pillar 131a is provided with an upper flange 131d at the top. The cylindrical column 131a is provided with a lower flange 131e at the lower portion thereof. The upper flange 131d of one cylindrical pillar 131a is bolted to the lower flange 131e of the other cylindrical pillar 131a stacked thereon. In this way, the plurality of module pillar members 131 are coupled in series with each other.

5 and 6, a plurality of support shaft portion 131b is provided on the outer circumferential surface of the cylindrical column 131a. Here, the plurality of support shaft portions 131b supports the plurality of rotation transmission shafts such that the plurality of rotation transmission shafts are rotatable at a predetermined angle. A stopper 131c is provided on the outer circumferential surface of the support shaft portion 131b.

The stopper 131c is positioned in the locking groove 134a provided on the outer circumferential surface of the first rotation transmission shaft 134 to the third rotation transmission shaft 138, respectively. At this time, the stopper 131c is positioned to protrude to the outside of the locking groove 134a.

Here, the locking groove 134a has a width larger than the diameter of the stopper 131c, and has a size that is not affected by the stopper 131c when the rotational transmission shaft rotates at a predetermined angle. However, the stopper 131c is fixed at a predetermined position, but is a relative motion with respect to the locking groove 134a when the rotational transmission shaft is rotated. When the rotational transmission shaft is rotated by a predetermined angle, the stopper 131c is spaced apart from the locking groove 134a. Limit the rotation of the rotating transmission shaft.

As shown in FIG. 5, the first rotation transmission shaft 134 to the third rotation transmission shaft 138 are coupled to the module pillar member 131 spaced apart from each other by 120 °. The first blade 133 is connected to the first rotational transmission shaft 134. The second blade 135 is connected to the second rotation transmission shaft 136. The third blade 137 is connected to the third rotational transmission shaft 138.

The first blade 133 to the third blade 137 are coupled to the first rotation transmission shaft 134 to the third rotation transmission shaft 138 so as to be inclined with respect to the adjacent blade, thereby forming a pinwheel shape.

The coupling structure between the first blade 133 and the first rotational transmission shaft 134 may include a coupling structure between the second blade 135 and the second rotational transmission shaft 136 and a third blade 137 and the third rotational transmission. The same as the coupling structure of the shaft 138, the coupling structure of the first blade 133 and the first rotational transmission shaft 134 will be described below.

The first blade 133 is divided into a first wing plate 133a and a second wing plate 133b based on the center of gravity. The first rotational transmission shaft 134 is provided at the boundary between the first wing plate portion 133a and the second wing plate portion 133b. Here, the boundary line between the first wing plate portion 133a and the second wing plate portion 133b is the center of gravity of the first blade 133.

The first wing plate portion 133a has a smaller area than the second wing plate portion 133b but has the same weight as the second wing plate portion 133b. In order to have the same weight as the second wing plate portion 133b, a plurality of balance members 133c are installed in the first wing plate portion 133a.

The second wing plate portion 133b has a shape larger than the area of the first wing plate portion 133a. Accordingly, the second wing plate portion 133b has a wide plate shape having a thickness thinner than the thickness of the first wing plate portion 133a, and the first wing plate portion 133a is thicker than the thickness of the second wing plate portion 133b. It has a narrow plate shape with a thickness. The first wing plate portion 133a and the second wing plate portion 133b preferably have a shape in which the edge is curved in a streamline shape so as to receive less resistance to a bird.

The first blade 133 receives a current proportional to the area of the first wing plate portion 133a and the second wing plate portion 133b and rotates based on the first rotation transmission shaft 134. That is, the first rotational transmission shaft 134 is rotated at a predetermined angle while the first blade 133 is positioned vertically or horizontally with respect to the traveling direction F of the tidal current, and the first wing plate portion 133a and the first wing plate portion 133a. Match the weight balance between the second wing plate portion 133b. At this time, the degree of rotation of the first rotation transmission shaft 134 is limited by the stopper 131c.

As shown in FIG. 7, when the first blade 133 is positioned perpendicular to the flow direction F of the tidal flow, the first rotational transmission shaft 134 may have a first weight due to the weight balance of the first blade 133. The rotating force is transmitted to the vertical rotation shaft 120 while being rotated at a predetermined angle to push the blade 133 in the direction F of the bird.

In addition, when the first blade 133 is located in a direction opposite to the moving direction F of the tidal flow, the first rotation transmission shaft 134 may be positioned horizontally with the traveling direction F of the tidal current. While rotating provides a rotational force to the vertical axis of rotation (120).

As shown in FIG. 7, when the first blade 133 is positioned perpendicular to the direction of movement F of the tidal stream, the first blade 133 may include the first wing plate portion 133a and the second wing plate portion 133b. Due to the different area difference between), the water pressure applied to the first wing plate portion 133a and the water pressure applied to the second wing plate portion 133b are applied differently. As a result, the first blade 133 is rotated in the R2 direction about the first rotational transmission shaft 134 to match the weight balance between the first wing plate portion 133a and the second wing plate portion 133b. It can be positioned horizontally with respect to the direction F to minimize the resistance to algae. For this reason, the present invention can increase the algae power generation efficiency.

In this process, that is, the first blade 133 is positioned perpendicular to the direction of the tidal flow and is pushed by the tidal flow, the first rotational transmission shaft 134 is R1 by the force of the tidal force pushing the first blade 133 Is rotated in the direction. The first rotation transmission shaft 134 transmits this rotation force to the vertical rotation shaft 120. At this time, the rotation direction of the vertical rotation shaft 120 is the R1 direction. This process is repeatedly performed while the first blade 133 to the third blade 137 rotate by the tidal stream.

The amount of power generated during algae generation is derived from equation (1).

Equation (1)

(Where ρ is seawater density (1,025 kg / m 3), A is the mean area, and V is the flow rate of algae.

In view of Equation (1), since the algae power generation amount (P) is proportional to the cube of the effective means area (A) and the algal flow rate (V), the present invention is preferably installed in a large algal flow rate.

The present embodiment merely shows a part of the technical idea included in the present invention, and modifications and specific embodiments which can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification of the present invention are all Obviously, it is included in the technical idea of the present invention.

Claims

A main body unit in which a generator is built;

A vertical rotating shaft positioned vertically below the main body, and one side connected to the generator; And

Is connected to the vertical axis of rotation, comprising a plurality of blades for transmitting a rotational force to the vertical axis of rotation,

The plurality of blade portion,

A module pillar member coupled to the vertical rotation shaft in a module unit;

A plurality of rotation transfer shafts rotatably connected to the module pillar member at a predetermined angle and spaced apart from each other by 120 °;

The plurality of the plurality of wing blades are divided into a first wing plate portion and a second wing plate portion having the same weight as that of the first wing plate portion and having an area larger than that of the first wing plate portion based on the portion where the rotational transmission shaft is installed. A plurality of blades are respectively provided coupled to the rotation transmission shaft, wherein the plurality of blades are rotated by a predetermined angle relative to the rotation transmission axis by the weight balance between the first wing plate and the second wing plate. Blade structure for generator.
The method of claim 1,

The plurality of blades, the blade structure for a generator, characterized in that a plurality of blades of any one blade portion is connected to the vertical axis of rotation with an interval of 30 ° to 90 ° with respect to the plurality of blades of the other blade portion located up and down .
The method of claim 2,

The module pillar member,

A cylindrical column coupled to the vertical axis of rotation,

A plurality of support shaft portions protruding from an outer circumferential surface of the cylindrical pillar to rotatably support the plurality of rotation transmission shafts;

Is made of a stopper provided to protrude on the outer peripheral surface of the plurality of support shaft portion,

The stopper is located in the engaging groove provided on the outer circumferential surface of the rotary transmission shaft, generator blade structure, characterized in that for limiting the degree of rotation of the rotary transmission shaft.
The method of claim 2,

The plurality of blades is a blade structure for a generator, characterized in that each one is connected to the plurality of rotation transmission shaft inclined at a predetermined angle with respect to the other blade is positioned adjacent to each other.