KR20230095173A - Complex power generation system using aquaculture farm - Google Patents

Abstract

Disclosed is a composite power generation system using an aquaculture farm. According to the present invention, the composite power generation system using an aquaculture farm includes an aquaculture farm including a main rope provided with a net or a hanging culture line and anchored in the seabed, and a plurality of buoys provided on the main rope to provide buoyancy. The system comprises: a buoyancy structure which comprises a buoyancy body provided at a lower portion and a support structure provided on an upper portion of the buoyancy body, and is connected to the main rope to be provided in the center or at one side of the aquaculture farm; a power generation portion comprising a wind power generator which is formed to generate power by using wind power and is provided in the center of the support structure, a plurality of solar power generation panels formed to generate power by solar light and provided on the upper surface of the support structure, a plurality of tidal power generation apparatuses each comprising a turbine which is rotatably operated by tidal current and respectively provided on the edge of the support structure, at least one buoy-type wave power generator provided in a case to generate power by the movement of the waves, and a seawater battery provided in the buoyancy structure; and a central control apparatus comprising an energy storage unit for storing electricity generated by the power generation portion, a communicator for communicating with a management system via wires or wirelessly, and a controller for controlling the energy storage unit and the communicator. According to the present invention, environmentally friendly electrical energy can be produced from the power generator.

Description

Combined power generation system using fish farm {COMPLEX POWER GENERATION SYSTEM USING AQUACULTURE FARM}

The present invention relates to a combined power generation system using a fish farm, and more particularly, to produce hydrogen for wave power generation, solar power generation, tidal power generation, wind power generation, seawater battery and fuel cell using a fish farm It relates to a combined power generation system using a fish farm.

A fish farm means a place where facilities necessary for fishery are installed on the sea surface surrounded by a certain area and aquatic animals and plants are cultivated.

These farms are composed of buoys floating on the surface of the water, nets or longlines connected to the buoys, and anchor ropes for supporting the buoys.

Recently, various methods of generating electrical energy using idle buoys or floating bodies in fish farms have been proposed.

As a prior art, Korean Patent Publication No. 10-2015-0090367 (published date: 2015.08.06) discloses a cage farm booth capable of self-power generation. The self-powered cage farm booth according to the prior art secures a space for people to live inside, and has a side wall with a slope of 20 - 50 ° from the floor to the roof, and the side wall receives sunlight. Solar cells are installed to generate electricity. A wind turbine is installed on the roof.

As another prior art, Korean Patent Registration No. 10-1875506 (published date: 2018.07.09) discloses a marine farm equipped with a solar power generation device. The offshore fish farm that bends the solar power generation device has a plurality of buoyancy bodies disposed horizontally and vertically spaced apart on the sea surface so that a space is formed inside, and an upper portion of the plurality of buoyancy bodies to interconnect the plurality of buoyancy bodies. It is coupled to a plurality of decks installed, a plurality of connecting brackets installed on the upper surfaces of each of the plurality of buoyancy bodies, and a plurality of net fixing rings installed at predetermined positions on one side of each of the plurality of connecting brackets, It is configured to include a net located in the space and a photovoltaic module coupled to the plurality of connecting brackets so as to be located above the net in the space.

However, since the offshore farms equipped with cage farm booths and photovoltaic power generation devices capable of self-power generation according to the prior art are configured to perform power generation mainly using solar light or wind power, there is a problem in that power generation efficiency is not high. For example, generation using wind power does not generate power when there is no wind, and solar power generation has a problem in that power generation does not occur on cloudy days or at night.

. Republic of Korea Patent Publication No. 10-2015-0090367 (published date: 2015.08.06) . Republic of Korea Patent No. 10-1875506 (Announcement date: 2018.07.09)

An object of the present invention is a means for power generation and hydrogen production using wave power generation, solar power generation, tidal power generation, wind power generation, and seawater batteries using fish farms, that is, energy harvesting using fish farms. ) is to provide a means to realize

In addition, the problem to be solved by the present invention is not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clear to those skilled in the art from the description below. You will be able to understand.

The above object, according to the present invention, includes a main rope having a net or longline and anchored to the sea floor, and a fish farm consisting of a plurality of buoys provided on the main rope, and a buoyancy body provided at the bottom, and A buoyancy structure made of a support structure provided on top of the buoyancy body and connected to the main rope and provided at the center or one side of the fish farm; A wind power generation device configured to generate wind power and provided at the center of the support structure, a plurality of photovoltaic power generation panels configured to generate power by sunlight and provided on the upper surface of the support structure, and a turbine operated by tidal current. A plurality of tidal current generators provided at the edge of the support structure, at least one buoy-type wave power generator provided inside the case to generate power by movement by waves, and provided on the buoyancy structure A power generation unit including a seawater battery; And a central control including an energy storage unit for storing electricity generated by the power generation unit, a communication unit for communicating with a management system through wireless or wired communication, and a control unit for controlling the power generation unit, the energy storage unit, and the communication unit. It is achieved by a combined power generation system using a fish farm, characterized in that it includes a device.

The tidal current generator is provided with an inflow prevention member so that fish or foreign substances do not flow in, and a case installed vertically so as to be located underwater through an installation portion formed at an edge of the support structure; a turbine provided with a plurality of blades and vertically rotatably installed inside the case; and a generator provided on an upper portion of the case to be connected to a shaft of the turbine to convert rotational kinetic energy of the turbine into electrical energy.

In the wave power generator, the inside of the buoy is divided into upper and lower parts, a flow amplification space partially filled with a liquid for flow amplification is formed in the upper part, and a buoyancy space blocked from the outside to generate buoyancy is formed in the lower part. the case; a weight provided vertically at the center of the bottom surface of the case to form a center of gravity of the case; a connection rope connecting the case and the main rope; And it may be configured to include at least one or more wave power generation modules provided in the buoyancy space to convert potential energy into electrical energy when the case is shaken by waves.

The wave power generator is provided on the buoy, and the inside of the buoy is divided into upper and lower parts to form a flow amplification space partially filled with liquid for flow amplification at the top and sealed to generate buoyancy at the bottom. A buoyancy space is formed, and at least one wave power generation module configured to convert potential energy into electrical energy when the buoy is shaken in all directions relative to the connecting rope by waves is provided inside the buoyancy space.

In the buoyancy space, a battery for temporarily storing electrical energy generated from the wave power module may be installed.

The buoyancy structure may be provided with a hydrogen storage tank for storing hydrogen generated from the seawater battery, and the power generation unit may further include a fuel cell for generating electricity by reacting hydrogen stored in the hydrogen storage tank. there is.

According to the present invention, it provides an effect of producing eco-friendly electrical energy from a power generation unit composed of a buoyancy structure in a fish farm and a wind power generation device, a solar power generation panel, a tidal current power generation device, a wave power generation device, and a seawater power plant provided on a main rope. You can do it.

According to the present invention, it is possible to provide the effect that wave power generation using a plurality of idle buoys can be achieved by installing the wave power module in the idle buoy of the fish farm.

1 is a schematic diagram for explaining a combined power generation system using a fish farm according to the present invention.
Figure 2 is a partially enlarged view showing an example of the tidal current power plant shown in Figure 1.
FIG. 3 is a top cross-sectional view of FIG. 2 .
Figure 4 is a cross-sectional view showing the wave power generator shown in Figure 1;
5 is a perspective view showing an example of the wave power module shown in FIG. 1;
Figure 6 is a schematic diagram showing another example of the wave power generator shown in Figure 4;
7 is a configuration diagram for explaining a central control device for controlling the power generation unit shown in FIG. 1;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

In this specification, the terms used are for describing the embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprises' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

In this specification, when an element is referred to as being “connected” to another element, it should be understood that although it may be directly connected to the other element, other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist.

In this specification, the terms used are only used to describe specific embodiments, and are not intended to limit the present invention.

In this specification, singular expressions include plural expressions unless the context clearly dictates otherwise.

Among the accompanying drawings, FIG. 1 is a schematic diagram for explaining a combined power generation system using a fish farm according to the present invention, FIG. 2 is a partially enlarged view showing an example of the tidal current power generation device shown in FIG. 1, and FIG. 3 Is a planar cross-sectional view of FIG. 2, and FIG. 4 is a cross-sectional view showing the wave power generator shown in FIG. And, Figure 5 is a perspective view showing an example of the wave power module shown in Figure 1, Figure 7 is a configuration diagram for explaining a central control device for controlling the power generation shown in Figure 1.

As shown in FIGS. 1 to 5 and 7, the combined power generation system 100 using a fish farm includes a main rope 14 provided with a net or a longline 12 and anchored to the sea floor, It is applied to the fish farm 10 consisting of a plurality of buoys 16 provided on the rope 14.

The fish farm 10 is for cultivating fish or shellfish, and the main rope 14 maintains a floating state on the water surface by a plurality of buoys 16, and a net or a road is installed under the main rope 14. As shown in 1, multipliers and lower chains 12 are provided. The main rope 14 is anchored by each anchor 17 and the anchor rope 17A installed on the seabed so as not to leave the set place due to currents or waves.

The combined power generation system 100 applied to the fish farm 10 is composed of a buoyancy body 210 provided at the bottom and a support structure 220 provided above the buoyancy body 210, and the main rope 14 It is connected to and includes a buoyancy structure 200 provided in the center or on either side of the fish farm 10. The combined power generation system 100 further includes a power generation unit 300 and a central control device 400 capable of realizing energy harvesting using the fish farm 10 .

The buoyancy structure 200 is composed of a plurality of buoyancy bodies 210 configured to generate buoyancy, and a support structure 220 provided on top of the buoyancy body 210. Each of the buoyancy bodies 210 are coupled to each other and coupled to the support structure 220 to be integrated. The support structure 220 is connected to and integrated with the main rope 14 by a plurality of connecting ropes, etc., and may be made of a steel frame structure to have sufficient rigidity. The buoyancy structure 200 is disposed in the center or on either side of the fish farm 10. In this embodiment, it is described and illustrated based on being disposed in the center of the fish farm 10.

The power generation unit 300 is provided on the main rope 14 and the buoyancy structure 200, respectively, to realize eco-friendly energy harvesting.

The generator 300 is configured to generate wind power and includes a wind power generator 310 provided at the center of the support structure 220 . In the wind turbine generator 310, a tower having blades and a turbine is provided upright in the center of the support structure 220.

The power generation unit 300 includes a plurality of photovoltaic power generation panels 320 provided on the upper surface of the support structure 220 and configured to generate power by sunlight. The photovoltaic panel 320 may also be installed on the tower structure of the wind power generator 310 including the upper surface of the support structure 220 .

The power generation unit 300 includes a plurality of tidal current generators 330 provided with turbines 334 rotated by tidal currents and provided at the edges of the support structure 220, respectively. As shown in FIGS. 2 and 3, the tidal current generator 330 includes an inflow prevention member 332A so that fish or foreign substances do not flow in and an installation portion 222 formed at the edge of the support structure 220. The case 332 installed vertically to be located in the water through the water, the turbine 334 provided with a plurality of wings and rotatably installed vertically inside the case 332, and the rotational kinetic energy of the turbine 334 It consists of a generator 336 provided on the top of the case 332 to be connected to the shaft of the turbine 334 to convert into electrical energy. Since the turbine 334 is vertically installed in the water, as shown in FIG. 3 , the rotation operation of the turbine 3374 can be smoothly performed regardless of the direction in which tidal currents act.

The power generation unit 300 includes a wave power generator 340 for converting potential energy into electrical energy as it is shaken by waves. As shown in FIG. 4, the wave power generator 340 is divided into upper and lower parts, and a flow amplification space 342A partially filled with liquid for flow amplification is formed at the top, and buoyancy is generated at the bottom. It includes the case 342 in which the buoyancy space 342B is formed so as to be closed. A weight 344 is provided vertically at the center of the bottom surface of the case 342 to form a center of gravity of the case 342 . A connection rope 346 connecting the case 342 and the main rope 14 is included. When the case 342 is shaken by waves, it is configured to convert potential energy into electrical energy and includes at least one wave power module 348 provided in the buoyancy space 342B. The flow amplification space 342A is formed smaller than the buoyancy space 342B, but, unlike this, the buoyancy space 342B may be formed smaller. The flow amplification space 342A may have a conical shape with a small upper end and a wider lower end. The liquid for flow amplification may be made of sea water, and may fill approximately 2/3 of the flow amplification space 342A. A warning light may be provided at an upper end of the case 342 . Various observation sensors or equipment may be mounted in the buoyancy space 342B or the outside of the case 342, and a battery may be provided for temporarily storing electrical energy generated by the wave power module 344.

The wave power generation module 348 is configured to convert electrical energy into potential energy that changes when the buoy 16 is shaken in all directions relative to the weight 344 by waves. That is, when the case 342 repeats the process of being tilted along the wave surface and erected again by the waves, it is configured to rotate and generate power.

The wave power generation module 348 is not limited to any one structure and may be configured in various ways. As an example, as shown in FIG. 5, a wave power turbine 348B for generating power by rotational motion is provided inside a four-sided hexahedral housing 348A, and each surface of the housing 348A has a structure in which pendulums 348C, which perform pendulum motion by the inclination of the case 342, are coupled to the rotating shaft. Due to this structure, when the case 342 is tilted by a wave, the pendulums 348C tilt to one side and rotate each rotational shaft, and the rotational force of each rotational shaft is generated by the gear module provided inside the housing 348A. 348B) to generate electricity.

In the wave power generator 340 having this structure, the liquid for flow amplification is partially filled in the flow amplification space 342A formed at the top of the case 342, the buoyancy space 342B is formed at the bottom, and the case 342 Since the weight 344 is provided on the lower surface of the case 342, when the waves act on the case 342, the case 342 is shaken more greatly, so that power generation efficiency can be improved. In other words, since the weight 344 is provided on the bottom of the case 342 and the liquid for flow amplification is filled in the flow amplification space 342A on the upper side with the center of gravity at the lower center, the case 342 ) is tilted and erected again or tilted in the other direction, the liquid filled in the flow amplification space 342A is freely sloshed in an unspecified direction independently and/or in an inclined direction of the case 342. Therefore, the case 342 shakes more and more due to the addition of the shaking caused by the sloshing of the liquid filled in the flow amplification space 342A to the shaking caused by the waves, and since the shaking is amplified and continued, the wave power generation built into the buoyancy space 342B The power generation efficiency of the module 348 can be significantly improved.

Wave power generator 340 according to another embodiment, as shown in Figure 6, the case 342 is the same as the above-described embodiment except that the buoy 16 is applied. That is, the inside of the buoy 16 is divided into upper and lower parts, the upper part is formed with a flow amplification space 16A partially filled with liquid for flow amplification, and the lower part is formed with a buoyancy space that is blocked from the outside to generate buoyancy ( 16B) is formed. The lower surface of the buoy 16 is connected to the main rope 14 by a connecting rope 346. At least one wave power generation module 344 is installed in the buoyancy space 16B. As the wave power generator 340 is applied to the buoy 16, a separate case 342 is not required. Since the connecting rope 346 is connected to the main rope 14 and serves as a weight 344, a separate weight 344 is unnecessary.

The power generation unit 300 may include a seawater battery 350. The seawater battery 350 is a device that stores and generates electrical energy by reacting with seawater, and is environmentally friendly because it uses seawater as an electrolyte. The seawater battery 350 includes a positive electrode portion including a cathode submerged in seawater, a negative electrode portion including an anode impregnated with an organic electrolyte, and a positive electrode positioned between the positive electrode portion and the negative electrode portion. It includes a solid electrolyte separating the negative electrode portion and the negative electrode portion.

However, when electric energy is generated in the seawater battery 350, hydrogen gas is generated at the cathode. The present invention may further include a hydrogen storage tank for storing explosive hydrogen generated from the seawater battery 350.

The power generation unit 300 includes a fuel cell 360 for receiving hydrogen stored in a hydrogen storage tank and generating electric power. The fuel cell 360 receives high-purity hydrogen gas from a hydrogen storage tank, generates electric power through reaction with the hydrogen gas, and generates water and heat as by-products. Since the power generation method using the fuel cell 360 can be understood from known technologies, a detailed description thereof will be omitted.

As shown in FIG. 7, the central control device 400 includes a wind power generation device 310, a solar power generation panel 320, a tidal current power generation device 330, and a wave power generation device 340 of the power generation unit 300. , an energy storage unit 420 for storing electricity generated by the seawater battery 350 and the fuel cell 360, a communication unit 430 and a power generation unit for communicating with the management system 500 through wireless or wired communication ( 300) and a control unit 440 for controlling the energy storage unit 420 and the communication unit 430.

On the other hand, the buoyancy structure 200 may be provided with observation sensors for observing or sensing salinity, water temperature, current direction, and the like.

As the combined power generation system 100 configured as described above is applied to the fish farm 10, not only can fish or shellfish be farmed using the fish farm 10, but also power consumed in the fish farm 10 can be reduced. It can be supplied and used from the combined power generation system 100 produced by itself.

In particular, the combined power generation system 100 applied to the fish farm 10 can collect energy generated from natural energy sources such as wind, sunlight, algae, seawater, etc. and convert it into useful electrical energy, thereby enabling energy harvesting. can be realized

In addition, by utilizing the idle buoy 16 to realize wave power generation, manufacturing costs can be significantly reduced.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

10: fish farm 12: Yeonseungsuhayeon
14: main rope 16: buoy
100: complex power generation system 200: buoyancy structure
300: power generation unit 310: wind power generator
320: solar power panel 330: tidal current generator
340: wave power generator 350: seawater battery
360: fuel cell 400: central control device
420: energy storage unit 430: communication unit
500: management system

Claims (6)

It includes a fish farm consisting of a main rope equipped with a net or a longline and anchored to the sea floor, and a plurality of buoys provided on the main rope to provide buoyancy,
A buoyancy structure made of a buoyancy body provided at the bottom and a support structure provided above the buoyancy body, connected to the main rope and provided at the center or one side of the fish farm;
A wind power generation device configured to generate wind power and provided at the center of the support structure, a plurality of photovoltaic power generation panels configured to generate power by sunlight and provided on the upper surface of the support structure, and a turbine operated by tidal current. A plurality of tidal current generators provided at the edge of the support structure, at least one buoy-type wave power generator provided inside the case to generate power by movement by waves, and provided on the buoyancy structure A power generation unit including a seawater battery; and
A central control device including an energy storage unit for storing electricity generated by the power generation unit, a communication unit for communicating with a management system through wireless or wired communication, and a control unit for controlling the power generation unit, the energy storage unit, and the communication unit. Characterized in that it includes,
Combined power generation system using fish farm. According to claim 1,
The algae power plant,
A case having an inflow prevention member to prevent fish or foreign matter from entering, and installed vertically to be located underwater through an installation part formed at an edge of the support structure;
a turbine provided with a plurality of blades and vertically rotatably installed inside the case; and
Characterized in that it consists of a generator provided on the top of the case to be connected to the shaft of the turbine to convert the rotational kinetic energy of the turbine into electrical energy,
Combined power generation system using fish farm. According to claim 1,
The wave power generator,
The inside of the case is divided into upper and lower parts, a flow amplification space filled with liquid for flow amplification is formed at the top, and a closed buoyancy space is formed at the bottom to generate buoyancy;
a weight provided vertically at the center of the bottom surface of the case to form a center of gravity of the case;
a connection rope connecting the case and the main rope; and
Characterized in that it comprises at least one wave power generation module configured to convert potential energy into electrical energy when the case is shaken by waves and provided in the buoyancy space,
Combined power generation system using fish farm. According to claim 1,
The wave power generator,
The buoy is provided on the buoy, and the inside of the buoy is divided into upper and lower parts, and a flow amplification space partially filled with a liquid for flow amplification is formed at the top, and a closed buoyancy space is formed at the bottom to generate buoyancy, Characterized in that the inside of the buoyancy space is provided with at least one wave power generation module configured to convert potential energy into electrical energy when the buoy is shaken in all directions relative to the connecting rope by waves,
Combined power generation system using fish farm. According to claim 3 or 4,
In the buoyancy space,
Characterized in that a battery for temporarily storing the electrical energy generated by the wave power module is installed,
Combined power generation system using fish farm. According to claim 1,
In the buoyancy structure,
A hydrogen storage tank for storing hydrogen generated from the seawater battery is provided, and the power generation unit further comprises a fuel cell for generating electricity by reacting the hydrogen stored in the hydrogen storage tank.
Combined power generation system using fish farm.

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