Hybrid tidal and wave power generation device

Abstract

According to the present invention, a plurality of buoy levers (104a, 104b) for wave power generation and front and rear variable wings (105a, 105b) for tidal power generation are interlocked in one direction, by an interlocking gear unit (103) that connects a driving shaft (102) of a power generator (101) and interlocking shafts (103a, 103b), to synergistically combine wave power and tidal power energy in the one power generator (101), thus making it possible to achieve hybrid power generation that maximizes efficiency at low cost. In particular, a mooring power generation facility is designed as a wave-resistant structure in which buoys and the power generator (101) are only partially exposed above the sea surface, and thus can safely generate power even in the presence of strong typhoons and rough waves.

Description

Tidal and wave power fusion power generation device

[0001] The present invention relates to a power generation device that produces electricity using marine energy that combines tidal power and wave power.

[0002] Recently

[0003]

[0004] Power generation utilizing natural forces like wind, solar, and tidal power, which are environmentally friendly and green energies, is attracting attention. However, hydroelectric power suffers from site conditions and high construction costs. Thermal power generation suffers from global warming and pollution. Nuclear power suffers from local resistance and radiation issues. Wind and solar power generation face the challenge of providing a stable power supply in response to weather changes. Tidal power generation using dams suffers from site selection issues and excessive construction costs.

[0005] In contrast, South Korea's west and south coasts, formed by archipelagos, are dotted with straits where fast currents and waves form between islands and the mainland, making them highly advantageous for economical tidal power and wave power generation. Tidal power, in particular, offers the advantage of a consistent tidal cycle, with its long average daily power generation time and predictable power output, facilitating planned power generation.

[0006] Typical tidal power generation methods include installing a tower-type structure equipped with a power generation device in the sea, installing a structure with axial blades fixedly on the seabed or underwater, and using a floating body such as a ship equipped with a power generation turbine.

[0007] The most common wave power generation methods are the floating body type, which rotates the generator by causing the floating body to move up and down or rotate due to the movement of waves, and the oscillating water column type, which rotates the turbine and generates power by the air flow generated through the nozzle when the air in the air chamber is compressed and expanded due to the movement of the waves.

[0008] However, existing tidal power and wave power generation systems have been implemented only as separate individual power generation systems because their functions and actions are different, and although there have been attempts to build large power plants and place various types of power generation modules such as wave power, tidal power, wind power, and solar power there, there has been no attempt to develop an integrated power generation system that performs tidal power and wave power generation in a linked manner on a series of drive shafts.

[0009] The reason why there has been no attempt to develop a power generation method that combines tidal power and wave power in a single generator is that wave power is energy that waves act vertically, and tidal power is energy that high and low tides act horizontally, so it has not been easy to create a fusion power generation system that can accommodate both in a single generator.

[0010] To solve this problem, the inventor of the present invention has already invented a "combined power generation turbine of tidal current and wave power" (Korean Patent No. 10-2154935) that comprehensively executes power generation by combining tidal current and wave power through a series of drive shafts (104).

[0011] However, the above-mentioned prior art, as shown in the attached drawing 1, has a plurality of variable blades (211) equipped with a one-way clutch (212) on a drive shaft (204) extended by a material joint (205) so that they rotate in only one direction, so that when a vortex (swirl) is generated in the front variable blade (211) that receives the current, the rotational moment is canceled out in the rear variable blade (211) that rotates in the same direction, which has a disadvantage in that the driving efficiency of the generator is greatly reduced.

[0012] In addition, as shown in the attached drawing 2, since the lever (206) equipped with the one-way clutch (207) on the drive shaft (204) is configured as a rotating body combined left and right, there was a disadvantage in that the lever (206) hardly tilted and the driving of the generator was not realized when the float (210) was in a position where the wave heights on the left and right sides were similar, as shown in the direction of the arrow.

[0013] Therefore, there is a need to develop a tidal and wave power generation device that can achieve high-efficiency tidal power generation by utilizing eddies (vortices) as rotational energy for reaction by rotating the front and rear variable vanes in opposite directions, and can realize wave power generation even when the left and right wave heights are the same by rotating the floats and levers separately arranged on the left and right in opposite directions. The following patent documents are prior art.

[0014] Patent Document 1 Korean Patent No. 10-2154935

[0015] Patent Document 2 Korean Patent No. 10-2097151

[0016] Patent Document 3 Korean Patent No. 10-1027757

[0017] Patent Document 4 Korean Patent No. 10-2146373

[0018] Patent Document 5 Korean Patent No. 10-1386699

[0019] Patent Document 6 Japanese Patent Application Laid-Open No. 7-301171

[0020] Patent Document 7 Korean Patent Application No. 1020190115702

[0021] The purpose of the present invention is to provide a tidal and wave power fusion power generation device that performs fusion power generation with maximized efficiency.

[0022] The purpose of the present invention is to provide a tidal current and wave power fusion power generation device that can perform high-efficiency tidal current power generation and realize wave power generation even when the left and right wave heights are the same.

[0023] The present invention was created to achieve the above-mentioned purpose, and a generator (101) and a float (107) are installed on the upper part of a frame (108) anchored to the seabed by a mooring line (109), and a linkage gear unit (103) is formed at the lower part of the frame (108) in which a drive shaft (102) of the generator (101) and a linkage shaft (103a, 103b) are linked to each other by a barbell gear (113a, 113b) and a linkage gear (113c) having one-way clutches (c1, c2) built in, and a plurality of float levers (104a, 104b) having one-way clutches (c3, c4) built in on the left side of the linkage shaft (103a) and the right side of the linkage shaft (103b) are configured to execute driving rotation (sp) only when the float (106) rises, and The variable blades (105a, 105b) with one-way clutches (c5, c6) built in at the front and rear of the linkage shafts (103a, 103b) are configured to perform drive rotation (sp) only in opposite directions.

[0024] Meanwhile, the above-mentioned variable wing (105a, 105b) is configured to form a parabolic surface (115) made of flexible and tough fabric on a wing support (114) whose end is bent in the opposite direction of rotation, so that the parabolic surface (115) excluding the wing support (114) changes into a concave streamlined shape in response to the current the moment it receives the current, and further, includes a one-way clutch (c5, c6) mounted on the central axis portion so as to execute a driving rotation (sp) in one direction and an idle rotation (id) in the opposite direction.

[0025] According to one aspect of the present invention, a tidal current and wave power generation device is installed on the upper part of a frame (108) anchored to the seabed by a mooring line (109), and a linkage gear unit (103) in which a drive shaft (102) of the generator (101) and a first linkage shaft (103a) and a second linkage shaft (103b) are linked to each other by a barbell gear (113a, 113b) and a linkage gear (113c) each having a first one-way clutch (c1) and a second one-way clutch (c2) built in, and a plurality of first linkage shafts (103a, 113b) each having a third one-way clutch (c3) and a fourth one-way clutch (c4) built in on the left side of the first linkage shaft (103a) and the right side of the second linkage shaft (103b) The first variable blade (105a) and the second variable blade (105b) are configured to execute the driving rotation (sp) only when the float (106) rises, and the first linkage shaft (103a) and the second linkage shaft (103b) are each configured to execute the driving rotation (sp) in opposite directions, each of which has a fifth one-way clutch (c5) and a sixth one-way clutch (c6) built in at the front and rear thereof.

[0026] In the above-described tidal current and wave power generation device, the first variable blade (105a) and the second variable blade (105b) are configured to form a parabolic surface (115) made of a flexible and tough fabric material on a wing support (114) whose end is bent in the opposite direction of rotation, so that a portion of the parabolic surface (115) excluding the wing support (114) changes into a concave streamlined shape in response to the tidal current the moment it receives the tidal current, and the central axis portions of the first variable blade (105a) and the second variable blade (105b) are characterized in that the fifth one-way clutch (c5) and the sixth one-way clutch (c6) are configured to always perform a driving rotation (sp) in one direction and an idle rotation (id) in the opposite direction even when the direction of the tidal current changes.

[0027] The present invention can realize high-efficiency power generation at low cost by collecting wave power and tidal current energy in a way that synergizes with each other. In particular, the vortex (eddy) generated from the front variable vane (105a) is utilized as reaction energy to increase the rotational force in the rear variable vane (105b) that rotates in the opposite direction, thereby enabling high-efficiency tidal current power generation. In addition, the present invention has various special features and advantages, such as being able to receive wave energy over a wide area by arranging multiple float levers (104a, 104b) on the left and right, and being designed as a floating wave-resistant structure in which only the floats (106, 107) and the generator (101) are exposed to the sea surface, thereby enabling safe power generation even in strong typhoons and rough waves.

[0028] Figure 1 is a side view of a conventional prior art.

[0029] Figure 2 is a front view of a lever (206) of a prior art operating on waves.

[0030] Figure 3 is a front view of the present invention.

[0031] Figure 4 is a side view of the present invention.

[0032] Figure 5 is a top view of the present invention.

[0033] Figure 6 is a cross-sectional view and a perspective view showing the linkage gear unit (103) of the present invention.

[0034] Figure 7 is a front view showing the front and rear variable wing (105a, 105b) of the present invention.

[0035] Fig. 8 is a cross-sectional view showing part AA of Fig. 4.

[0036] The present invention relates to a tidal and wave power fusion power generation device, which is characterized in that, unlike a conventional individual power generation method using separate turbines for tidal power generation and wave power generation, a plurality of float levers (104a, 104b) for performing wave power generation and front and rear variable vanes (105a, 105b) for performing tidal power generation are linked in one direction by a linkage gear unit (103) connecting a drive shaft (102) and a linkage shaft (103a, 103b) of a generator (101), thereby collecting wave power and tidal current energy in a manner in which a synergistic effect is exerted in a single generator (101), thereby realizing fusion power generation with maximized efficiency at low cost, and in particular, a moored power generation facility is designed with a wave-resistant structure in which only the float and generator (101) portions are exposed above the sea surface, so that power generation can be safely performed even in strong typhoons and rough waves.

[0037] The present invention is intended to solve the problems of the prior art, and it is an object of the present invention to provide a wave and wave power fusion power generation device that safely generates electricity even in strong typhoons and strong waves by collecting wave and tidal current energy in a synergistic manner by a plurality of one-way rotating float levers (104a, 104b) and variable vanes (105a, 105b) installed on a linkage shaft (103a, 103b) by a linkage gear unit (103) having a built-in one-way clutch, and in particular, a moored power generation facility is designed with a wave-resistant structure in which only the float and generator portions are exposed above the sea surface, thereby performing fusion power generation with maximized efficiency.

[0038]

[0039] Now, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0040] Fig. 3 is a front view of an embodiment of a tidal current and wave power fusion power generation device of the present invention, Fig. 4 is a side view of the present invention, and Fig. 5 is a top view of the present invention.

[0041] As shown in FIGS. 3 to 5, the present invention installs a generator (101) and a float (107) on the upper part of a frame (108) anchored to the seabed by a mooring line (anchoring steel line) (109), and configures a linkage gear unit (103) in which a drive shaft (102) of the generator (101) and a linkage shaft (103a, 103b) are linked to each other by a barbell gear (113a, 113b) and a linkage gear (113c) having a one-way clutch (c1, c2) built in at the lower part of the frame (108).

[0042] A linkage gear unit (103) is formed by linking the drive shaft (102) of the generator (101) and the first linkage shaft (103a) and the second linkage shaft (103b) with each other by means of a barbell gear (113a, 113b) and a linkage gear (113c) each having a first one-way clutch (c1) and a second one-way clutch (c2).

[0043] A pair of interlocking barbell gears (113a, 113b) include a barbell gear (113a) (first barbell gear) coupled to the lower end of a driving shaft (102), a barbell gear (113b) (second barbell gear) coupled to a first linkage shaft (103a) via a first one-way clutch (c1) and housing the first one-way clutch (c1) on the inside, and a linkage gear (113c) coupled to a second linkage shaft (103b) via a second one-way clutch (c2) and housing the second one-way clutch (c2) on the inside.

[0044] The first one-way clutch (c1) is interposed between the first linkage shaft (103a) and the barbell gear (113b), and the second one-way clutch (c2) is interposed between the linkage gear (113c) and the second linkage shaft (103b). The barbell gear (113b) coupled to the first linkage shaft (103a) and the linkage gear (113c) coupled to the second linkage shaft (103b) are meshed with each other.

[0045] On the left side of the first linkage shaft (103a) and on the right side of the second linkage shaft (103b), a plurality of first levers (104a) and a plurality of second levers (104b) each having a third one-way clutch (c3) and a fourth one-way clutch (c4) built in are configured to perform driving rotation (sp) only when the levers (106) rise.

[0046] The first auxiliary lever (104a) has one end connected to the first linkage shaft (103a) via the third one-way clutch (c3) and then extends to the left (in one direction), and a coupling line (111) is coupled to the other end thereof. The second auxiliary lever (104b) has one end connected to the second linkage shaft (103b) via the third one-way clutch (c4) and then extends to the right (in the opposite direction of one direction), and a coupling line (111) is coupled to the other end thereof. One end of the coupling line (111) is coupled to the first auxiliary lever (104a) or the second auxiliary lever (104b), respectively, and then extends upward and then the other end is coupled to a float (106) floating on the water surface.

[0047] The first variable blade (105a) and the second variable blade (105b) are configured to execute driving rotation (sp) in opposite directions, each of which has a fifth one-way clutch (c5) and a sixth one-way clutch (c6) built in the front and rear of the first linkage shaft (103a) and the second linkage shaft (103b), respectively.

[0048] A first variable blade (105a) is coupled to the front (front end) of the first linkage shaft (103a) via a fifth one-way clutch (c5), and a second variable blade (105b) is coupled to the rear (rear end) of the second linkage shaft (103b) via a sixth one-way clutch (c6). The first variable blade (105a) and the second variable blade (105b) are driven and rotated (sp) in opposite directions, and the first linkage shaft (103a) and the second linkage shaft (103b) are also driven and rotated (sp) in opposite directions.

[0049]

[0050] Hereinafter, the actions and effects of the components of the present invention described above will be described in detail.

[0051] First, Fig. 6 is a cross-sectional view and an internal perspective view showing the above-mentioned linkage gear unit (103).

[0052] As illustrated in FIG. 6, the above-described linkage gear unit (103) is configured to have a one-way clutch (c1) built into the center of a barbell gear (113b) that is meshed with a barbell gear (113a) that rotates a generator shaft (102) so that the left linkage shaft (103a) performs a driving rotation (sp) in the right rotation direction (clockwise) and an idle rotation (id) in the left rotation direction (counterclockwise), and further, a one-way clutch (c2) built into the center of a linkage gear (113c) that is meshed with the left barbell gear (113b) so that the right linkage shaft (103b) performs a driving rotation (sp) in the left rotation direction and an idle rotation (id) in the right rotation direction.

[0053] In this way, the first reason why the barbell gear (113b) and the linkage gear (113c) of the above-described linkage gear unit (103) in the present invention are configured to perform drive rotation (sp) in one direction and idle rotation (id) in the opposite direction is to realize high-efficiency tidal power generation by making the variable blades (105a, 105b) installed in front and rear of the left and right linkage shafts (103a, 103b) drive rotation (sp) in opposite directions to utilize the rotational energy of the eddy current (swirl) generated in the front variable blade (105a) as the rotational energy of the reaction in the rear variable blade.

[0054] In addition, the second reason why the barbell gear (113b) and the linkage gear (113c) of the above-described linkage gear unit (103) in the present invention are configured to perform driving rotation (sp) in one direction and idle rotation (id) in the opposite direction is to realize high-efficiency wave power generation by having a plurality of fulcrum levers (104a, 104b) drive and rotate (sp) in opposite directions on the left and right of each linkage shaft (103a, 103b) to receive wave energy in the widest possible area on both left and right sides.

[0055] In addition, the third reason why the barbell gear (113b) and the linkage gear (113c) of the above-described linkage gear unit (103) are configured to perform driving rotation (sp) in one direction and idling rotation (id) in the opposite direction is that the magnitudes of wave force and tidal current force received by the plurality of floating levers (104a, 104b) and variable blades (105a, 105b) installed on each linkage shaft (103a, 103b) are different from each other, so it is necessary to prevent a linkage shaft with a small rotational moment or that is stopped from hindering the rotation of another linkage shaft. That is, when the variable blades (105a, 105b) have different rotation speeds, it is necessary to improve the driving efficiency of the generator (101) by offsetting the rotational resistance (resistance that prevents the rotation of other meshed shafts together and lowers the driving efficiency of the generator if the stopped or low-rotational shaft cannot idle) generated between the linkage shafts (103a, 103b) with idle rotation (id) in the linkage gear unit (103).

[0056] Therefore, in the present invention, the role of the above-mentioned linkage gear unit (103) configured to execute driving rotation (sp) in one direction and idling rotation (id) in the opposite direction by incorporating a one-way clutch (c1, c2) is very important.

[0057] Meanwhile, Fig. 7 is a front view of the variable blades (105a, 105b) that constitute the present invention.

[0058] As illustrated in FIG. 7, the above-described variable blades (105a, 105b) are configured to form a paraboloid (115) made of a flexible and tough fabric material on a support (114) whose end is bent in the opposite direction of rotation, so that the portion of the paraboloid (115) excluding the support (114) changes into a concave streamlined shape in response to the received current, and a one-way clutch (c5, c6) is mounted on the central axis of the above-described variable blades (105a, 105b) so that even if the direction of the current changes, the driving rotation (sp) is always performed in only one direction, and the idling rotation (id) is performed in the opposite direction.

[0059] And the front variable blade (105a) and the rear variable blade (105b) are installed in front and rear of the left linkage shaft (103a) and the right linkage shaft (103d) respectively so as to be driven and rotated (sp) in opposite directions by a linkage gear unit (103) equipped with a one-way clutch (c5, c6), thereby driving and rotating (sp) in opposite directions, thereby maximizing the efficiency of tidal power generation by utilizing the rotational energy of the vortex (eddy) generated in the front variable blade (105a) that receives the tidal current as the rotational energy of the reaction in the rear reversing variable blade (105b).

[0060] Meanwhile, Fig. 8 is a cross-sectional view showing the AA portion of Fig. 4, and shows the configuration of the above-mentioned lever (104a, 104b) that executes driving rotation (sp) and idling rotation (id) by building in one-way clutches ((c3, c4).

[0061] As illustrated in FIG. 8, the above-described floating levers (104a, 104b) are configured to fold like wings on the left and right sides of each linkage shaft (103a, 103b), and each floating lever (104a, 104b) has a one-way clutch (c3, c4) built into the rotational action point portion that drives in the opposite direction, so that when the wave height line (WL) rises, the inclination of the floating lever (104a, 104b) rises upward by the buoyancy of the connected floating member (106) to execute a driving rotation (sp), and when the wave height line (WL) lowers, the inclination of the floating lever (104a, 104b) performs an idle rotation (id) by its own weight to decrease the inclination.

[0062] Accordingly, each of the auxiliary levers (104a, 104b) mounted on each linkage shaft (103a, 103b) has the advantage of performing an idle rotation (id) so that the rotation of the other auxiliary levers (104a, 104b) performing a driving rotation (sp) by rising the wave line (WL) is not hindered when the rotation is stopped and reversed by falling of the wave line (WL).

[0063] Meanwhile, the tie line (111) that has not yet been explained is made of aramid wire, carbon fiber, or steel wire and binds each of the fulcrum levers (104a, 104b) and the fulcrum (106).

[0064] As described above, the present invention is not a separate power generation system that uses turbines for tidal power generation and wave power generation as in the past, but a plurality of float levers (104a, 104b) and variable blades (105a, 105b) that perform tidal power generation and wave power generation are linked together on a plurality of linkage shafts (103a, 103b), thereby collecting wave power and tidal current energy in a way that synergizes with each other in a single generator (101), thereby realizing power production with maximized efficiency at low cost, and in particular, the vortex (eddy) generated in the front variable blade (105a) is utilized as reaction energy that increases the rotational force in the rear variable blade (105b), thereby executing high-efficiency tidal power generation, and a plurality of float levers (104a, 104b) are installed on the left and right to receive a large amount of wave energy in a wider area, thereby realizing high-efficiency wave power generation, and also, the floats (106, 107) and the generator (101) are designed as a floating, wave-resistant structure exposed above the sea surface, so that power generation can be safely performed even in strong typhoons and rough waves, and it has various special features and advantages, such as being able to be utilized as a large-scale power generation complex by connecting multiple modularized versions of the present invention left and right.

[0065] The above description of the present invention is provided for illustrative purposes only. Those skilled in the art will readily appreciate that modifications to other specific embodiments can be made without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

[0066] The present invention combines wave and tidal energy in a synergistic manner to achieve highly efficient power generation at low cost. Specifically, it is designed as a floating, wave-resistant structure where only the float and generator are exposed above the sea surface, ensuring safe power generation even in strong typhoons and rough waves. Furthermore, the power generation facility can be easily moored with an anchor, making it ideal for use in coastal island areas with limited power supply, offshore aquaculture farms, and offshore workshops. Furthermore, multiple units can be connected to form large-scale power plants.

Claims

1. Install a generator (101) on top of a frame (108) anchored to the seabed by a mooring line (109), The lower part of the above frame (108) comprises a barbell gear (113a, 113b) and a linkage gear (113c) each having a first one-way clutch (c1) and a second one-way clutch (c2) built in, thereby forming a linkage gear unit (103) in which the drive shaft (102) of the generator (101) and the first linkage shaft (103a) and the second linkage shaft (103b) are linked to each other. On the left side of the first linkage shaft (103a) and on the right side of the second linkage shaft (103b), a plurality of first auxiliary levers (104a) and a plurality of second auxiliary levers (104b) each having a third one-way clutch (c3) and a fourth one-way clutch (c4) built in are configured to execute driving rotation (sp) only when the auxiliary lever (106) rises. The first variable blade (105a) and the second variable blade (105b) are each configured to execute drive rotation (sp) in opposite directions, and each of the fifth one-way clutch (c5) and the sixth one-way clutch (c6) is built in the front and rear of the first linkage shaft (103a) and the second linkage shaft (103b), respectively. A fusion power plant of tidal currents and waves.

2. In paragraph 1, The first variable wing (105a) and the second variable wing (105b) are configured to form a parabolic surface (115) made of flexible and tough fabric material on a wing support (114) whose end is bent in the opposite direction of rotation, so that a portion of the parabolic surface (115) excluding the wing support (114) changes into a concave streamlined shape in response to the current the moment it receives the current. The central axis portion of the first variable blade (105a) and the second variable blade (105b) is characterized in that the fifth one-way clutch (c5) and the sixth one-way clutch (c6) are configured to always perform driving rotation (sp) in one direction and perform idling rotation (id) in the opposite direction even when the direction of the current changes. A fusion power plant of tidal currents and waves.

Images