KR101289036B1 - Tidal power generation system - Google Patents

Abstract

The tidal current system includes tidal control blocks and tidal generators. The tidal flow control blocks each have a streamlined curved surface to change the tidal flow by the curved surface. The tidal generators are adjacent to the tidal control blocks, each comprising a plurality of blades that are subjected to the modified tidal flow. As a result, the flow rate of the algae can be adjusted and high power generation efficiency can be obtained.

Description

Tidal power generation system {TIDAL POWER GENERATION SYSTEM}

The present invention relates to an algae power generation system, and more particularly to an algae power generation system that can increase the power generation efficiency.

Recently, as the necessity of alternative energy development is emerging, wind power generation using wind power or algae generation using algae has been in the spotlight. It is economical, efficient and eco-friendly. However, wind energy has a disadvantage that the wind speed and direction fluctuate severely and not continuously, and the production price of the wind power generator is relatively high. On the other hand, tidal energy has the advantage of easy tidal current prediction and relatively low production cost of a generator.

Examples of generators that can utilize tidal current include horizontal turbines where the axis of rotation of the turbine is parallel to the direction of the tidal stream, and vertical turbines whose axis of rotation is perpendicular to the direction of the tidal current. In particular, in the case of the vertical shaft turbine, all the electric power generation parts can be arranged on the water surface, and there is an advantage that the structure is simple and easy to implement.

Figure 1a is a side view schematically showing a conventional vertical axis tidal current generator. Figure 1b is a schematic plan view for explaining the rotational direction according to the tidal current of the vertical axis tidal current generator of Figure 1a.

Referring to FIGS. 1A and 1B, in the case of a conventional vertical axis tidal current generator, a generator 110, a driver 120, and blades 130 are generally included. The blades are generally composed of four or less, are formed perpendicular to the sea surface, the angle is changed according to the position so that the vertical axis tidal current generator can rotate in one direction according to the direction of the tidal current. Therefore, the vertical axis tidal current generator also rotates in one direction (counterclockwise) according to the direction of the tidal current.

However, in order to obtain a rotational force in one direction (counterclockwise direction) as described above, the flow of algae flowing to the B region is rather hindered by the rotation of the vertical axis algae generator. In addition, it is impossible to control the flow rate of algae, it will depend on the irregular flow of algae. Therefore, it is difficult to obtain a constant and high level of power generation efficiency.

Therefore, the technical problem of the present invention has been conceived in this respect, the object of the present invention is to provide a tidal flow power generation system capable of controlling the flow rate of algae and obtain a high power generation efficiency.

An algae power generation system according to an embodiment for achieving the above object of the present invention includes a plurality of algae control blocks and a plurality of algae generators. The tidal flow control blocks each have a streamlined curved surface to change the tidal flow by the curved surface. The tidal generators are adjacent to the tidal control blocks, each comprising a plurality of blades that are subjected to the modified tidal flow.

In one embodiment of the present invention, the blades are formed perpendicular to the sea level, the blades of the tidal generators located closest to the tidal current concentrated along the curved surface of the tidal control blocks are 45 degrees to the direction of the concentrated tidal current It can be arranged to achieve.

In one embodiment of the present invention, the tidal flow control block includes two tidal flow control blocks facing each other, the non-facing sides of each of the two blocks is formed in a curved surface to change the flow of the tidal The tidal current generators may be disposed between the two tidal flow control blocks.

In one embodiment of the invention, each of the tidal current generators may be arranged to be exposed to the outside of the tidal control blocks facing each other.

In one embodiment of the present invention, the exposed portion of the tidal current generator may correspond to 1/2 to 2/3 of the entire area of the tidal current generator.

In one embodiment of the present invention, the tidal flow control blocks are arranged spaced apart in a row, each is formed in a cylindrical shape including at least one recess formed on the outer surface, the recessed portion of the tidal generators Some may be arranged.

In one embodiment of the present invention, the concave portion may be formed on a centerline connecting the center points of the cylinder.

In one embodiment of the present invention, each of the tidal current generator may be exposed to the outside 1/2 to 2/3 of the entire area.

An algae power generation system according to another embodiment for achieving the above object of the present invention includes an algae control block and a plurality of algae generators. The tidal flow control blocks have a streamlined curved surface to change the flow of algae by the curved surface, and a plurality of recesses are formed on an outer surface thereof. The tidal current generators are adjacent to the tidal control block and each includes a plurality of blades that receive the modified tidal flow.

In one embodiment of the present invention, the tidal current generators may be disposed in the recesses, respectively.

In one embodiment of the present invention, the blades are formed perpendicular to the sea level, the blades of the tidal generators located closest to the tidal current concentrated along the curved surface of the tidal control blocks are 45 degrees to the direction of the concentrated tidal current It can be arranged to achieve.

In one embodiment of the present invention, the tidal flow control block has a cylindrical shape, the concave portions may be formed in a line symmetry with respect to the center line of the tidal flow control block.

In one embodiment of the present invention, each of the tidal current generator may be exposed to the outside 1/2 to 2/3 of the entire area.

In one embodiment of the present invention, the tidal flow control block has an elliptic block shape, the tidal flow control block may be fixed to a fixed end formed on one side on the long axis of the ellipse.

In one embodiment of the present invention, the algae control block may further include a buoy which is formed inside the block to support the algae control block in seawater.

In one embodiment of the present invention, the recesses may be formed in a line symmetry with respect to the center line of the tidal flow control block.

In one embodiment of the present invention, each of the tidal current generator may be exposed to the outside 1/2 to 2/3 of the entire area.

In one embodiment of the present invention, the tidal flow control block has an elliptic cylinder shape, the tidal flow control block may be fixed to the first connecting members connected to one end on the long axis of the ellipse.

In one embodiment of the present invention, the tidal flow control block may be further fixed to the second connecting members connected to the other end on the long axis of the ellipse.

In one embodiment of the present invention, the algae control block may further include a buoy which is formed inside the block to support the algae control block in seawater.

In one embodiment of the present invention, the recesses may be formed in a line symmetry with respect to the center line of the tidal flow control block.

In one embodiment of the present invention, each of the tidal current generator may be exposed to the outside 1/2 to 2/3 of the entire area.

According to embodiments of the present invention, the algae control block can minimize the resistance to algae and at the same time efficiently control the flow rate of the algae, it is possible to increase the power generation efficiency in the algae generator. In addition, even when the flow of the algae is changed irregularly can be coped actively, it is possible to use the efficient algae as a whole.

However, the effects of the present invention are not limited to the above-mentioned effects, and may be variously expanded without departing from the spirit and scope of the present invention.

Figure 1a is a side view schematically showing a conventional vertical axis tidal current generator.
Figure 1b is a schematic plan view for explaining the rotational direction according to the tidal current of the vertical axis tidal current generator of Figure 1a.
2 is a schematic plan view showing a tidal current generation system according to an embodiment of the present invention.
3 is a schematic plan view showing an algae power generation system according to another embodiment of the present invention.
4 is a schematic plan view showing a tidal current power generation system according to another embodiment of the present invention.
Figure 5a is a schematic plan view showing a tidal current generation system according to another embodiment of the present invention.
Figure 5b is a schematic plan view for explaining the operation direction according to the tidal current of the tidal power generation system of Figure 5a.
6 is a schematic plan view showing a tidal current power generation system according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the algae power generation system according to an embodiment of the present invention. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

2 is a schematic plan view showing a tidal current generation system according to an embodiment of the present invention.

Referring to FIG. 2, an algae power generation system 200 according to an embodiment of the present invention includes two algae control blocks 210a and 210b and two algae generators 220a and 220b. The tidal current generator is substantially the same as the vertical axis tidal current generator described with reference to FIGS. 1A and 1B except for the arrangement direction of the blades according to the position of the tidal current generator arranged between the tidal flow control blocks. Omit.

The tidal flow control blocks each have a streamlined curved surface to change the tidal flow by the curved surface. The tidal current generators are adjacent to the tidal control block and each includes a plurality of blades that receive the modified tidal flow.

For example, the tidal flow control blocks 210a and 210b are disposed to face each other, and surfaces of the tidal flow control blocks 210a and 210b that do not face each other are formed in a curved surface to change the flow of the tidal current.

In detail, each of the tidal flow control blocks 210a and 210b extends from the first surface 212a and 212b and the first surface having a straight line shape in a cross section cut in a direction parallel to the sea surface, respectively. It includes a second surface (214a, 214b) having the shape of. The second surface has a shape of a cut ellipse, and as a whole has a shape of a block standing in a direction perpendicular to the sea surface.

The tidal flow control blocks 210a and 210b are arranged such that the first surfaces 212a and 212b face each other in parallel. The distance between the first surfaces is determined in a range equal to or slightly larger than the diameter of the tidal current generator so that the tidal current generators 220 may be disposed between the first sides. The tidal flow control blocks 210a and 210b are disposed such that the first surfaces 212a and 212b facing each other face a direction perpendicular to the tidal flow.

The tidal current generators 220a and 220b have a vertical shaft turbine perpendicular to the sea level and generate power using a tidal flow. The tidal current generators have a plurality of blades perpendicular to the sea level, and the blades are arranged such that the tidal current generators rotate in one direction. For example, the tidal current generator 220a disposed on one side has blades disposed to rotate in a counterclockwise direction, and the tidal current generator 220b disposed on the other side has blades disposed to rotate in a clockwise direction. As a result, the tidal generators have an array of blades that are symmetrical to each other.

The tidal current generators 220a and 220b are disposed between the first faces 212a and 212b of the two tidal flow control blocks. Specifically, the tidal current generators 220a and 220b are disposed to be symmetrical with each other at both ends of the area A in which first surfaces of the tidal flow control blocks 210a and 210b face each other. The part is arranged to be exposed out of the area A.

The algae generator is preferably exposed to the outside of the area (A) is about 1/2 to about 2/3 of the total area of the algae generator. As described with reference to FIGS. 1A and 1B, in the case of a tidal current generator having a vertical shaft turbine, one blade is perpendicular to the direction of the tidal current and receives the tidal force as it is, while the other blade is in the direction of the tidal current. Parallel to the algae flows as it is. Therefore, an ineffective area of the algae generator, which does not efficiently receive the algae force, may be disposed in an area A in which the first surfaces face each other so as to receive the maximum algae force in the remaining effective area of the algae generator. have. Therefore, the algae generator is exposed to the outside of the area (A) to adjust the range of about 1/2 to about 2/3 of the entire area of the algae generator can use the energy of the algae most efficiently.

The height of the tidal flow control blocks 210a and 210b may be the same as or slightly higher than the height of the tidal current generators 220a and 220b. However, the present invention is not limited thereto and may be appropriately modified in various ranges for efficient use of algae.

The algae control block 210a facing the direction of the algae has a streamlined shape to one side, so that the algae flow can be changed to both sides while minimizing the resistance to the algae. Therefore, the flow rate of the algae is increased at both side ends of the algae control block 210a, thereby increasing the flow amount. As a result, it is possible to efficiently increase the amount of power generated by adjusting the flow rate of the algae. In addition, it is possible to obtain a higher level of power generation efficiency by concentrating the flow of algae into the effective area in the general vertical axis algae generator.

The algae control block 210b opposite to the direction of the algae serves to regulate the flow of flow generated by the rotation of the algae generators 220a and 220b. Specifically, since the tidal current generators 220a and 220b rotate in opposite directions, the tidal currents passing through the tidal current generators are introduced into the section between the tidal current generators by rotation. In this case, there is a flow in a direction opposite to that of the original tidal stream, which prevents the rotation of another adjacent tidal current generator. In addition, it is possible to generate a vortex in the interval between the tidal current generator, it can reduce the efficiency of the tidal current generator. However, the flow of the algae passing through the algae generators by the algae control block 210b can be guided to the second surface 214b of the algae control block 210b to efficiently rotate the algae generators. In addition, even when the direction of the current is changed in the reverse direction can have the same effect as described above.

Blades of the tidal current generators 220a and 220b are arranged to effectively receive the force of the modified tidal current. Specifically, the algae changed by the algae control block 210a to increase the flow rate is concentrated at a portion close to the side of the algae control block to have the maximum speed. In order to obtain the maximum force from the flow of the tidal stream, the blades 222a and 222b that receive the concentrated tidal stream most directly must maintain an angle at which the tidal force can be converted to the maximum rotational force. For example, as shown in FIGS. 1A and 1B, in order to rotate the tidal current generator in one direction under the maximum force of tidal current, the blade is located on a line parallel to the tidal direction of the tidal current generator. The angle should be 45 degrees to the direction of the bird, in this case can receive the maximum force in the tangential direction can obtain the maximum rotational force. Therefore, also in this embodiment, it is preferable that the blades 222a and 222b directly receiving the flow of the concentrated algae have an angle α of 45 degrees with the average direction of the concentrated algae. However, when the average direction of the concentrated tidal current is out of the center of the tidal current generator, the angles of the blades should be appropriately changed according to the position of the tidal current generators 220a and 220b. That is, the angles of the blades 222a and 222b of the tidal current generators may also be appropriately changed to obtain the maximum rotational force according to the range in which the tidal current generator is exposed to the outside of the area A.

3 is a schematic plan view showing an algae power generation system according to another embodiment of the present invention.

Referring to FIG. 3, the tidal current power generation system 300 according to another embodiment of the present invention includes a plurality of tidal current generators 320a to 320d and a tidal flow control block 310. The tidal current generator is substantially the same as the tidal current generator described with reference to FIG. 2 except for the arrangement direction of the blades according to the position of the tidal current generator arranged in the tidal flow control block.

The tidal flow control block 310 has a cylindrical shape as a whole, and is erected in a direction perpendicular to the sea surface. The side of the tidal flow control block is formed with recesses 312 of a shape corresponding to the side of the tidal current generator. Specifically, the concave portion 312 is formed as a space to the extent that a portion of the tidal current generator 320 can be inserted and fixed, has a concave shape corresponding to the side shape of the tidal current generator part of the tidal current generator To accept.

The recesses 312 are formed in line symmetry with respect to the center line of the tidal flow control block. Specifically, the recesses 312 are formed to evenly divide the circumference of the side of the tidal flow control block by the number of tidal current generators. In the present embodiment, four tidal current generators are provided, and the tidal current control block has four recesses formed to be uniformly symmetrical with each other in the vertical direction. In this embodiment, the number of tidal current generators is set to four, but is not limited thereto. The number of the algae generators can be variously adjusted to efficiently use the algae flow.

The tidal current generators 320a to 320d have a vertical shaft turbine perpendicular to the sea level and generate power using a tidal stream. The tidal current generators have a plurality of blades, and the blades are arranged such that the tidal current generators rotate in one direction. For example, the tidal current generators 320a and 320c disposed at one side of the center line m may have blades disposed to rotate in a counterclockwise direction, and the tidal current generators 320b and 320d disposed at the other side may be The blades are arranged to rotate clockwise. As a result, the tidal current generators have an array of blades which are symmetrical to each other with respect to the center line m.

The tidal current generators 320a to 320d are disposed in the recesses 312 of the tidal flow control block 310, respectively. In detail, the tidal current generators 320a to 320d are arranged to receive one side of the tidal current generators in the recesses of the tidal control block 310, and the other side parts which are not accommodated are outside the region where the recesses are formed. It is arranged to be exposed. Preferably, the algae generator is exposed to the outside of the region where the recesses are formed, about 1/2 to about 2/3 of the entire area of the algae generator. As described with reference to FIGS. 1A and 1B, in the case of a tidal current generator having a vertical shaft turbine, one blade is perpendicular to the direction of the tidal current and receives the tidal force as it is, while the other blade is in the direction of the tidal current. Parallel to the algae flows as it is. Therefore, the ineffective region of the algae generator, which does not efficiently receive the algae force, may be disposed in an area in which the recesses are formed, so that the tidal force is maximized in the remaining effective area of the algae generator.

The height of the tidal flow control block 310 may be equal to or slightly higher than the height of the tidal current generators. However, the present invention is not limited thereto and may be appropriately modified in various ranges for efficient use of algae.

The algae control block 310 has a streamlined shape in the direction of the algae flow, it is possible to change the flow of the algae to both ends while minimizing the resistance to the algae. Therefore, in the tidal current generator located on each side of the tidal flow control block 310, the flow rate of the tidal current increases, thereby increasing the flow amount. In addition, even when the flow of algae changes irregularly, it is possible to control and use the flow of algae very efficiently in all directions. As a result, it is possible to efficiently increase the amount of power generated by adjusting the flow rate of the algae, and to obtain a higher level of power generation efficiency by concentrating the flow of algae to the effective area in the general vertical axis algae generator.

Blades of the tidal current generators 320a to 320d are arranged to effectively receive the force of the modified tidal current. Specifically, the algae changed by the algae control block 310 to increase the flow rate is concentrated at a portion close to the side of the algae control block to have the maximum speed. In order to obtain the maximum force from the current of the tidal stream, the blades 322a to 322d of the tidal generators that receive the concentrated tidal stream most directly maintain the angle at which the tidal force can be converted to the maximum rotational force. shall. Therefore, the blades 322a to 322d directly receiving the flow of the concentrated tidal current preferably have an angle α of 45 degrees with the average direction of the concentrated tidal current. However, when the average direction of the concentrated tidal current is out of the center of the tidal current generator, the angle of the blades should be changed accordingly according to the position of the tidal current generators. That is, the angles of the blades 322a to 322d of the tidal current generators should be appropriately changed to obtain the maximum rotational force according to the range in which the tidal current generator is exposed to the outside of the region where the recess is formed.

4 is a schematic plan view showing a tidal current power generation system according to another embodiment of the present invention.

Referring to FIG. 4, an algae power generation system 400 according to another embodiment of the present invention includes two algae generators 420a and 420b and an algae control block 410. The tidal current generators 420a and 420b are substantially the same as the tidal current generator described with reference to FIG. 2 except for an arrangement direction of the blades according to the position of the tidal current generator arranged in the tidal control block. Omit.

The tidal flow control block 410 has an elliptic block shape as a whole and stands in a direction perpendicular to the sea level. The tidal flow control block is arranged such that the long axis (m) of the ellipse is parallel to the direction of the tidal flow, and is fixed to a fixed end formed on one side on the long axis of the ellipse. Specifically, a rotation center portion 430 is formed at one side of the long axis of the ellipse to fix the tidal flow control block and rotate about the fixed shaft A. The rotation center 430 is fixed to a fixed end, for example, the sea bottom surface. In addition, the tidal flow control block has a structure that can rotate around the rotation center.

The algae control block 410 may further include a buoy 440 for supporting the algae control block in seawater. The buoy 440 may have any structure as long as it generates buoyancy or lift to support the tidal flow control block. For example, the buoy 440 may be composed of a gas such as hydrogen or helium. In addition, the buoy 440 may be arranged in a variety of changes to a position that does not interfere with the flow of algae while supporting the algae control block. For example, the buoy 440 may be disposed inside the tidal flow control block, or may be disposed in the tidal current generator 420. The tidal flow control block is further provided with the buoy, it is possible to more easily rotate around the center of rotation.

The side of the tidal flow control block 410 is formed with recesses 412 of the shape corresponding to the side of the tidal current generator. Specifically, the concave portion 412 has a space in which some of the tidal current generators 420a and 440b are inserted and fixed, and has a shape corresponding to the side shape of the tidal current generator to provide a portion of the tidal current generator. Accept. The recesses 512 are formed on the minor axis n of the ellipse. The concave portions are formed to have a shape that is linearly symmetrical with respect to the long axis m of the ellipse.

The tidal current generators 420a and 440b are connected to the tidal flow control block, respectively, and are disposed in the recesses 412 of the tidal flow control block, respectively. In detail, the tidal current generators are arranged to be connected to one side of the tidal current generators in recesses of the tidal control block 410, and the other side parts which are not accommodated are disposed to be exposed to the outside of the region where the recesses are formed. . Preferably, the algae generator is exposed to the outside of the region where the recesses are formed, about 1/2 to about 2/3 of the entire area of the algae generator. As described with reference to FIGS. 1A and 1B, in the case of a tidal current generator having a vertical shaft turbine, one blade is perpendicular to the direction of the tidal current and receives the tidal force as it is, while the other blade is in the direction of the tidal current. Parallel to the algae flows as it is. Therefore, the ineffective region of the algae generator, which does not efficiently receive the algae force, may be disposed in an area in which the recesses are formed, so that the tidal force is maximized in the remaining effective area of the algae generator.

The height of the tidal flow control block 410 may be equal to or slightly higher than the height of the tidal current generators. However, the present invention is not limited thereto and may be appropriately modified in various ranges for efficient use of algae.

The algae control block 410 has a streamlined shape in the direction of the algae flow, it is possible to change the flow of the algae on both sides while minimizing the resistance to the algae. Therefore, in the tidal current generator located on each side of the tidal flow control block 410, the flow rate of the tidal current is increased, thereby increasing the flow amount. In addition, the tidal flow control block 410 is rotated around the rotation center 430 according to the flow of the tidal flow, can actively cope with the change of the tidal flow, corresponding to all directions of the tidal flow As a result, it is possible to effectively utilize algae flow. As a result, it is possible to efficiently increase the amount of generation by controlling the flow rate of algae, and to concentrate the flow of algae into the effective area in the general vertical axis algae generator to the effective area at a higher level. The power generation efficiency of can be obtained.

Blades of the tidal current generators 420a and 440b are arranged to effectively receive the force of the modified tidal current. Specifically, the algae changed by the algae control block 410 to increase the flow rate is concentrated at a portion close to the side of the algae control block to have the maximum speed. In order to obtain the maximum force from the flow of the tidal current, the blades 422a, 422b of the tidal generators that receive the concentrated tidal flow most directly maintain the angle at which the tidal force can be converted to the maximum rotational force. shall. Therefore, the blades 422a and 422b directly receiving the flow of concentrated algae preferably have an angle α of 45 degrees with the average direction of the concentrated algae. However, if the direction of the concentrated tidal current is out of the center of the tidal current generator, the angle of the blades should be changed accordingly according to the position of the tidal current generators. That is, the angles of the blades 422a and 422b of the tidal current generators should be appropriately changed to obtain the maximum rotational force according to the range in which the tidal current generator is exposed to the outside of the region where the recess is formed.

Figure 5a is a schematic plan view showing a tidal current generation system according to another embodiment of the present invention. Figure 5b is a schematic plan view for explaining the operation direction according to the tidal current of the tidal power generation system of Figure 5a.

Referring to FIG. 5A, a tidal current power generation system 500 according to another embodiment of the present invention includes two tidal current generators 520a and 520b and a tidal flow control block 510. The tidal current generators 520a and 520b are substantially the same as the tidal current generator described with reference to FIG. 2 except for an arrangement direction of blades according to the position of the tidal current generator arranged in the tidal control block. Omit.

The tidal flow control block 510 has an elliptic block shape as a whole and stands in a direction perpendicular to the sea level. The tidal flow control block is disposed such that the long axis (m) of the ellipse is parallel to the direction of the tidal current, and two first connection members (530a, 530b) are connected to one end (A) on the long axis of the ellipse. Two second connection members 530c and 530d are further connected to the other end portion B on the long axis of the ellipse.

The connection members 530a to 530d correspond to, for example, a connection line such as a rope, and one side is connected to the tidal control block and the other side is fixed to a fixed end such as a sea surface bottom by a predetermined distance. Therefore, the connecting members 530a to 530d are connected to both ends A and B of the current control block at a predetermined angle, respectively.

The algae control block 510 includes a floater 540 for supporting the algae control block in seawater. The buoy 540 may be made of any structure as long as it generates buoyancy or lift in order to support the tidal flow control block. The algae control block is connected to the connecting members by the floater and is floated in the seawater.

The side of the tidal flow control block 510 is formed with recesses 512 of a shape corresponding to the side of the tidal current generator. Specifically, the recess 512 has a space in which a portion of the tidal current generator 520 can be inserted and fixed, and has a shape corresponding to the side shape of the tidal current generator to accommodate a portion of the tidal current generator. The recesses 512 are formed on the minor axis n of the ellipse. The concave portions are formed to have a shape that is linearly symmetrical with respect to the long axis m of the ellipse.

The tidal current generators 520a and 520b are connected to the tidal flow control block and are disposed in recesses 512 of the tidal flow control block, respectively. In detail, the tidal current generators 520a and 520b are connected to one side of the tidal current generators in recesses of the tidal flow control block 510 so that the other side portions that are not accommodated are areas where the recesses are formed. It is arranged to be exposed to the outside. Preferably, the algae generator is exposed to the outside of the region where the recesses are formed, about 1/2 to about 2/3 of the entire area of the algae generator. As described with reference to FIGS. 1A and 1B, in the case of a tidal current generator having a vertical shaft turbine, one blade is perpendicular to the direction of the tidal current and receives the tidal force as it is, while the other blade is in the direction of the tidal current. Parallel to the algae flows as it is. Therefore, the ineffective region of the algae generator, which does not efficiently receive the algae force, may be disposed in an area in which the recesses are formed, so that the tidal force is maximized in the remaining effective area of the algae generator.

The height of the tidal flow control block 510 may be equal to or slightly higher than the height of the tidal current generators. However, the present invention is not limited thereto and may be appropriately modified in various ranges for efficient use of algae.

Referring to FIG. 5B, when the flow of algae is directed toward one end A on the long axis of the ellipse, the connecting members 530a and 530b connected to the one end A are pulled tightly by tension and fixed. An angle θ is achieved. The flow of the tidal stream is changed to the side end of the tidal flow control block along the streamlined shape of the tidal flow control block 510. Therefore, in the algae generator located on each side of the algae control block, the flow rate of the algae is increased, thereby increasing the flow rate. In addition, even if the flow of algae has an irregular change, the algae control block 510 is able to rotate a constant angle (θ) around the one end (A) on the long axis, bar irregular flow of the algae Can cope actively. For example, when the flow of tidal current is changed in a direction parallel to the one connecting member 530a connected to the one end A, the tidal flow control block 510 also has the central axis ( m) can be rotated to achieve an angle of θ / 2. In addition, even when the flow of the bird is inclined more than the connecting member 530a, the length of the connecting member connected to the other end portion (B) on the long axis can be further rotated by an angle of α within the allowable range. This is the same even when the direction of the current is changed in a direction parallel to the other connecting member 530b connected to the one end (A). Therefore, the flow of algae can be controlled and used very efficiently in all directions of the algae.

The connecting members 530c and 530d connected to the other end B prevent the algae control block 510 from floating unstable in accordance with the flow of algae. That is, the tidal flow control block is prevented from rotating beyond a stable range according to an irregular tidal flow, thereby maintaining a stable state of the tidal flow control block. In addition, even when the direction of the current is changed in the reverse direction can have the same effect as described above.

The embodiments described with reference to FIGS. 4 to 5B are not limited thereto and may be applied to the embodiments described with reference to FIGS. 2 and 3. That is, the structure in which the tidal flow control block can actively cope with the change of the tidal flow may be equally applicable to other embodiments.

6 is a schematic plan view for explaining a tidal current system according to another embodiment of the present invention.

Referring to FIG. 6, the tidal current generation system 600 according to an embodiment of the present invention includes tidal current generators 620a to 620d and tidal control blocks 610a to 610c. The tidal current generators are substantially the same as the tidal current generator described with reference to FIG. 2 except for the arrangement direction of the blades according to the position of the tidal current generator arranged in the tidal flow control block.

The tidal flow control blocks 610a to 610c have a cylindrical shape in which a plurality of recesses are formed on an outer surface thereof, and some of the tidal current generators are disposed in the recesses.

Specifically, each of the tidal flow control blocks 610a to 610c has a cylindrical shape as a whole, and is erected in a direction perpendicular to the sea surface. The tidal control blocks are evenly spaced in a line to be perpendicular to the direction of the tidal flow.

Each of the tidal flow control blocks 610a to 610c includes at least one recess formed on an outer surface thereof. The recess is formed on a center line connecting center points of the cylinder. For example, recesses 612a to 612c having a shape corresponding to the side of the tidal current generator are formed on one side of each of the tidal flow control blocks. The concave portion 612 has a space in which a portion of the tidal current generator 620 may be inserted and fixed, and has a shape corresponding to a side shape of the tidal current generator to accommodate a portion of the tidal current generator.

The recesses 612a to 612c are formed in the same direction with respect to each of the center points on a line connecting the center points of the tidal flow control blocks. That is, one recess is formed between the adjacent tidal flow control blocks. In the present embodiment, three tidal current control blocks are provided, but this is only an example, and the number of tidal current control blocks may be increased or decreased as necessary.

A recess 612d having the same shape may be further formed in the tidal control block 610a disposed at the outermost side of the tidal control blocks opposite the recess 612a. The algae control block 610a disposed on the outermost side of the algae flow is provided by the algae generator 620a accommodated in the recess 612a in an area between the algae control block 610b and the adjacent algae control block 610b. You can get the power of, but in the opposite zone will send the power of algae. Therefore, the recess 612d is further formed in the tidal flow control block 610a disposed at the outermost side in order to efficiently receive the tidal force in all regions, and the recess 612d is described below. The tidal current generator 620d is accommodated therein.

In the present embodiment, one recess is formed between adjacent tidal flow control blocks, but is not limited thereto. For example, two recesses formed in each of the adjacent tidal flow control blocks may be formed between the adjacent tidal flow control blocks on the center line to which the center points of the tidal flow control blocks are connected.

The tidal current generators 620a to 620d have a vertical axis turbine perpendicular to the sea level and generate power using the flow of tidal current. The tidal current generators have a plurality of blades, and the blades are arranged such that the tidal current generators rotate in one direction.

The tidal current generators 620a through 620d are disposed in the recesses 612a through 612d of the tidal control blocks, respectively. In detail, the tidal current generators are arranged to receive one side of the tidal current generators in the recesses of the tidal control blocks, and the other side parts which are not accommodated are disposed to be exposed outside the region where the recesses are formed. Preferably, the algae generator is exposed to the outside of the region where the recesses are formed, about 1/2 to about 2/3 of the entire area of the algae generator. As described with reference to FIGS. 1A and 1B, in the case of a tidal current generator having a vertical shaft turbine, one blade is perpendicular to the direction of the tidal current and receives the tidal force as it is, while the other blade is in the direction of the tidal current. Parallel to the algae flows as it is. Therefore, the ineffective region of the algae generator, which does not efficiently receive the algae force, may be disposed in an area in which the recesses are formed, so that the tidal force is maximized in the remaining effective area of the algae generator.

Blades of the tidal current generators 620a to 620d are arranged to effectively receive the force of the modified tidal current. Specifically, the algae changed by the algae control blocks to increase the flow rate are concentrated at a portion close to the side of the algae control block to have the maximum speed. In order to obtain the maximum force from the current of the tidal stream, the blades 622a to 622d of the tidal generators that receive the concentrated tidal stream most directly maintain the angle at which the tidal force can be converted to the maximum rotational force. shall. Therefore, the blades 622a to 622d directly receiving the flow of concentrated algae preferably have an angle α of 45 degrees with the average direction of the concentrated algae. However, if the direction of the concentrated tidal current is out of the center of the tidal current generator, the angle of the blades should be changed accordingly according to the position of the tidal current generators. That is, the angles of the blades 622a to 622d of the tidal current generators should be appropriately changed to obtain the maximum rotational force according to the range in which the tidal current generator is exposed to the outside of the region where the recess is formed.

The distance between the tidal flow control blocks 610a to 610c may be selected within a distance at which the tidal current generators 620a and 620b disposed in the area between the tidal flow control blocks 610a to 610c may have the maximum efficiency. have. For example, one tidal current generator 620a is disposed in the recess 612a of the tidal current control block 610a between two adjacent tidal current control blocks 610a and 610b, and thus the tidal current generator 620a. Is subjected to both the tidal force deformed by the two adjacent tidal flow control blocks 610a, 610b. However, the blade 622a of the tidal current generator 620a maintains an optimized angle with respect to the tidal current deformed by the tidal current control block 610a which accommodates the tidal current generator 620a, so that another tidal current control block 610b is adjacent. It is possible to receive reverse rotational force by the algae deformed by). Therefore, the distance between the adjacent tidal flow control blocks 610a and 610b should be appropriately selected within a range that allows the tidal current generator 620a to receive forward rotational force by tidal currents modified by the adjacent tidal current control block 610b. do. This also applies to the distance between the other adjacent tidal control blocks 610b, 610c.

The height of the tidal flow control block 610 may be equal to or slightly higher than the height of the tidal current generator 620. However, the present invention is not limited thereto and may be appropriately modified in various ranges for efficient use of algae.

The algae control block 610 has a streamlined shape in the direction of the algae flow, it is possible to change the flow of the algae to both sides while minimizing the resistance to the algae. Therefore, in the tidal current generator located on one side of the tidal flow control block 610, the flow rate of the tidal current increases, thereby increasing the flow amount. In addition, the flow of algae can be concentrated in one algae generator by two adjacent algae control blocks. As a result, the amount of power generation can be increased efficiently, and a higher level of power generation efficiency can be obtained by concentrating the flow of algae in the effective area.

As described above, according to the embodiments of the present invention, according to the embodiments of the present invention, the algae control block can minimize the resistance to algae and at the same time efficiently control the flow rate of the algae, in the algae generator Can increase the power generation efficiency. In addition, even when the flow of the algae is changed irregularly can be coped actively, it is possible to use the efficient algae as a whole.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

110: power generation unit 120: drive unit
130: blades 210, 310, 410: tidal flow control block
510, 610: tidal flow control block 212: first page
214: 2nd side 312, 412, 512, 612: recessed part
220, 320, 420, 520, 620: algae generator
430: rotation center
530: connection member 440, 540: buoy

Claims (22)

A plurality of tidal control blocks having a streamlined curved surface to change the flow of algae by the curved surface; And
A plurality of tidal generators adjacent to the tidal control blocks, each comprising a plurality of blades subjected to the altered tidal flow,
Each of the tidal current generators exposes 1/2 to 2/3 of the entire area of the tidal current generator outwardly from the tidal control blocks such that the exposed portion receives the altered tidal flow and the tidal current generators are exposed. And a portion of which is not located inside the tidal control blocks so that the tidal flow is not received. According to claim 1, wherein the blades are formed perpendicular to the sea level, the blades of the tidal generators located closest to the tidal flow concentrated along the curved surface of the tidal control blocks are arranged to be 45 degrees to the direction of the concentrated tidal current Algae power generation system, characterized in that. The tide control block of claim 1, wherein the tidal flow control blocks
Comprising two tidal flow control blocks facing each other, the non-facing sides of each of the two blocks is characterized in that the curved surface to change the flow of the tidal flow,
And the tidal current generators are disposed between the two tidal flow control blocks. delete delete According to claim 1, The tidal flow control blocks are arranged spaced apart in a row, each is formed in a cylindrical shape including at least one concave formed on the outer surface,
Algae power generation system, characterized in that some of the tidal generators are disposed in the recess. 7. The tidal current system according to claim 6, wherein the recess is formed on a center line connecting center points of the cylinder. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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