KR100510327B1 - Tidal current power plant - Google Patents

Abstract

The present invention relates to a tidal current generation device, and actively responds to the height of the water surface and the direction of the current generated by the difference between tidal power so that it is possible to generate power at all times, while minimizing the resistance during the rotation of the aberration for generating a large torque It is intended to be obtained.

The algae generator according to the present invention, the buoyancy line 10 floating in the sea water made of a pointed streamline; One or more aberrations (20,30) having a plurality of foldable rotor blades floating in a state submerged in the buoyancy line and rotated by water currents; A rotating shaft 40 rotatably installing the aberration on the buoyancy line; A generator for generating power by receiving rotational force of the rotating shaft; And, it is fixed vertically in the water and the buoyancy line is adjusted to the height along the surface, and the support rod 50 is configured to support the buoyancy line so that the bow of the buoyancy line is disposed in the reverse direction of the sea water.

Description

Tidal current power plant {TIDAL CURRENT POWER PLANT}

The present invention relates to an algae generator, and more particularly, a large rotational force can be obtained at a low flow rate while the rotational aberration receives the maximum effective resistance, and the aberration is always rotated by the current irrespective of the water level and the direction of the water current. The present invention relates to an algae power generation apparatus capable of reducing manufacturing and maintenance costs through structural simplification.

Electric power generation methods include thermal power generation, nuclear power generation, hydroelectric power generation, solar power generation, wind power generation, tidal power generation, and the like. In the above, thermal power generation and nuclear power generation generate electricity by rotating a turbine in a generator with steam generated by heat, and hydropower generation generates electricity by rotating a turbine by a drop of water stored in a dam.

However, the above-mentioned thermal power generation uses fossil fuels such as coal or petroleum as an energy source, and the construction cost of the power plant is relatively inexpensive, but the reserves of fossil fuels, etc. are limited, gradually exhausting and polluting the environment. There is this.

In addition, nuclear power generation uses a large amount of heat generated when nuclear fission, such as uranium, as nuclear energy, as a power source, but has a large power generation capacity, but there is a serious problem of environmental pollution caused by radioactivity. In addition, hydroelectric power is converted into rotational energy obtained by dropping the potential energy of water stored by the dam, but the cost of power generation is low, but the area where the power plant is constructed is limited and a large area of land must be submerged.

Therefore, the coal-fired power generation, nuclear power generation and hydroelectric power generation mentioned above have been replaced.

Research and efforts have been made to develop practical devices for the interest and use of clean alternative energy.

Generally, clean alternative energy includes solar energy, wind energy, current energy, tidal energy, geo-thermal energy, and biochemical energy. -chemical energy).

In Korea, as the area where more than 10 knots of high speed tide occurs on the south coast has recently emerged, the search for a large capacity generator using algae energy is being made.

As a conventional tidal current generator, for example, two rotary vanes and a generator mounting stand are installed in the center of the upper surface of the floating body, and the water injection pipes at the front end of the rotating blades are installed on both sides of the floating body. It is configured to be located in the car.

By this configuration, the tidal current guides the tidal current to the tidal water pipe installed on the sea surface to rotate the rotary vane and drive the generator through a power transmission device to generate power.

However, the conventional tidal current generators guide the flow of currents to the rotary vanes installed on the surface of the water, resulting in the loss of potential energy in the process, resulting in low power generation efficiency, and because only the water flow on the surface of the seawater is used. There is a drawback that you do not get.

In addition, the conventional algae generator has a disadvantage that there is no device for protecting the generator in the event of a bad condition due to weather conditions, etc., the safety of the generator in bad weather conditions.

In order to solve such drawbacks, the current generator has been proposed as a registered utility model No. 323255.

The current generator includes a buoyancy line equipped with a generator, a fixing device for suspending a rope so that the buoyancy line stops stably at a specific position, and a power generation wing that is rotated by currents of the current, and at one end of the buoyancy line. The wing shaft of the power generating blade is condensed and the other end is pivotally coupled to the buoyancy line, the drive device for rotating the wing support arm, and the power transmission device for transmitting the rotational force of the power generating blade to the generator. It consists of.

However, according to the current generation apparatus, as shown in the description of the installation structure and the installation position of the buoyancy line, since the direction of the buoyancy line does not change, there is a disadvantage that it cannot be used where the flow direction of water flow is changed by the high and low tide. There is a disadvantage that the power generation wing is submerged, and the resistance is increased as the force is generated in the water, and the power generation efficiency is lowered.The buoyancy line is replaced with the buoyancy line by raising and lowering the anchor as it is fixed to the sea floor through the anchor and rope. Since it is difficult to replace the buoyancy line and it takes a long time, there is a disadvantage that the buoyancy line and equipment are damaged due to the failure to respond quickly in case of an emergency disaster. There is.

As another example of the tidal current generator, there is one using a helical turbine.

In the tidal current generator using the helical turbine, the helical turbine rotates vertically locked in the water.

① It is necessary to install complex and expensive structures underwater.

② The efficiency is low because the effective resistance surface hitting the algae flow is relatively low,

③ There is a difficulty in finding underwater the cause of failure due to algae or other causes.

④ Significant costs and time are required to repair bearings and other repairs.

⑤ The structures installed on the surface of the water are unprotected from natural disasters such as storms.

⑥ There is a disadvantage in that the cost of power generation is high due to the installation of expensive structures.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a tidal current generator that actively rotates a rotational blade that generates rotational force according to a direction of water current.

In addition, another object of the present invention is to minimize the resistance while the large rotational force can be obtained by water current to the center of motion of the rotary blade out of the sea water.

Still another object of the present invention is to allow self-start even at low speed water as the weight of the rotor becomes "0" by the buoyancy line.

Another object of the present invention is to facilitate the replacement of the buoyancy line.

Algae generator according to the present invention for achieving the above object, buoyancy line floating in sea water; An aberration mounted to the buoyancy line and floating in seawater while a part is locked in water and rotated by water current; A generator generating power by the rotational force of the aberration; Characterized in that it consists of a support rod for guiding the lifting and direction of the buoyancy line.

In addition, the present invention is characterized in that the aberration has a plurality of folding rotary blades in order to minimize the resistance of the wind.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in FIG. 1, the tidal current generator according to the present invention includes a buoyancy line 10 floating in seawater, aberrations 20 and 30 mounted on the buoyancy line 10 and rotating by water current of seawater, The rotary shaft 40 and the buoyancy line 10 rotated by the rotational force of the aberrations 20 and 30 allow the buoyancy line 10 to float on the surface at all times according to the seawater level in place, and the buoyancy line regardless of the direction of seawater flow ( The support rod 50 which supports the bow of 10) to maintain a reverse direction to the flow of seawater, and a generator (not shown) which generate electricity by the rotational force of aberration.

The buoyancy line 10 holds the position of the aberrations 20 and 30 so that the aberrations 20 and 30 are rotated by the currents of the seawater. (20,30) is floating on the water surface to rotate at a depth of 2-3m, this description will be described in detail in the description of the configuration of the aberration (20,30).

The buoyancy line 10 is installed rotatably and elevating to the support rod 50 so that the athlete maintains the reverse direction in the flow direction of the seawater at all times according to the flow direction of the seawater and floats on the water surface at all times according to the seawater level. In order to penetrate the support rod 50. In order to penetrate the support bar 50, a through hole penetrating up and down in the buoyancy line 10 may be formed, or a rectangular support bar accommodating part 11 having one side (stern side) may be formed. When one side is an open support rod accommodating part 11, a plate-shaped holder 12 is mounted to close the support bar accommodating part 11 so that the inserted support bar 50 does not fall out of the support bar accommodating part 11. The mounting structure of the holder 12 is, for example, on both sides of the support rod receiving portion 11 of the buoyancy line 10, the latching jaw 11 is formed at the outer end of the seating jaw 11a and the seating jaw 11a in the longitudinal direction. As the holder 12 is seated on the seating jaw 11a, the latching jaw 11b is formed so that the holder 12 is seated on the seating jaw 11a so that the holder 12 does not fall outwardly by the seating jaw 11b. The mounting structure of the holder 12 is not limited to the above-described structure, and a rail having a groove shape in which the rear side is opened in the buoyancy line 10 may be formed so that the holder 12 may be slidably inserted from the rear of the rail.

As shown in FIG. 2, and the buoyancy line 10 may be pitched and rolled by sea water, and the support rod receiving portion 11 is formed to be wider downward to minimize pitching and rolling.

The buoyancy line 10 is formed in a flat bottom without the point so that the direction can be freely changed according to the direction of the sea water, may be provided with one or more accommodating portion 13, the generator and the weight body (sand, etc.) are accommodated. . The accommodating part 13 is formed so that the upper side is opened in a portion which does not interfere with other structures (aberration 20, 30, the rotation shaft 40, the support bar 50) in the buoyancy line 10, and in the cover 13a. Is closed by. The cover 13a may be coupled to the housing 13 in the same structure as the holder 12.

As shown in FIG. 1, the aberrations 20 and 30 are hubs 21 and 31 and hubs 21 and 31 respectively fixed to left and right sides (parts outside the left and right sides of the buoyancy line 10) of the rotation shaft 40. Are connected to a plurality of spokes 22,32 and circular rims 23,33 and rims 23,33 respectively connecting radially formed spokes 22, 32, respectively, on both sides of the It consists of three rotating blades 24 and 34. Constrain the rotation of the rotary blades 24 and 34 to the spokes 22 and 32 so that the rotary blades 24 and 34 do not extend beyond a certain angle (an angle that can receive the maximum force of the current, but not limited thereto). Stoppers 22a and 32a are formed, and engaging portions 24c and 34c which are caught by the stoppers 22a and 32a are formed on the rotary blades 24 and 34.

The rotary blades 24 and 34 are hinged to the rims 25 and 35 so that interference does not occur during rotation by the water current of the sea water and is not affected by wind in the state where the water is not submerged so as not to drop the rotational force. It is connected foldable via a medium. Since the tidal power is generated by the rotational force of the rotary blades 24 and 34, it is important to minimize the resistance during the rotation of the rotary blades 24 and 34, and the rotary shaft as the center of the rotary blades 24 and 34, as in the present invention. Since the 40 is located outside the sea water (in the air), the resistance of the water flow is small, so the rotation of the rotation shaft 40 is smooth, and the rotor 40 and 34 are locked out of the water and disposed outside the sea water without being rotated by the water current. The rotary blades 24 and 34 are folded to minimize air resistance.

As shown in FIG. 1, the structures of the rotary blades 24 and 34 are bent at both sides of the wing plates 24a and 34a and the wing plates 24a and 34a as portions receiving sea water. A pair of hinge coupling parts 24b and 34b which surround the outer side of 33 and have hinges 25 and 35 connected thereto.

Since the wing plates 24a and 34a are parts that rotate substantially in response to the current of the seawater, they are bent in a curved shape to minimize resistance (the seawater flows from the bow of the buoyancy line 10 to the stern, so even with a small force of water) Convexly bent toward the stern for rotation, and the width can be gradually widened toward the free end to increase the effective area of the seawater to increase the rotational force.

As shown in Figure 3, it is preferable that three rotary blades 24 are provided at intervals of 120 ° on one rim 23 so that the rotational force of the maximum torque can be generated by the current of the seawater. The first rotary blades 24F, first obtained in the seawater, are immersed in the seawater and rotated by the current of the seawater, and the hinges 25F, 25S of the first rotary blades 24F and the second rotary blades 24S are parallel to the surface of the water. At this time, the second rotary blade 24S enters the seawater, rotates by the water current of the seawater, and the first rotary blade 24F exits from the seawater. Since the second rotary blade 34 has the same structure and operation as the first rotary blade 24, it will be omitted.

As described above, when the two aberrations 20 and 30 are installed on one rotation shaft 40, the rotary blades 24 and 34 of the first and second aberrations 20 and 30 are installed at the same position. Since the rotary blades 24 and 34 of the first and second aberrations 20 and 30 simultaneously enter the seawater, the interval between the acquisition times of the rotary blades 24 and 34 increases, so that the rotary shaft 40 cannot rotate at a uniform speed. 4, the rotary blades 24 and 34 of the first and second aberrations 20 and 30 are installed at points where the hinges 25 and 35 do not coincide with each other. Rotating blades 24 and 34 of 30 are configured to be obtained sequentially with a uniform time difference. Up to now, two aberrations have been described as an example, but even when three or more aberrations are configured to be obtained at different time points without having to simultaneously obtain the rotor blades by varying the hinge points of the rotor blades.

The width and diameter of the rotor blades 20 and 30 of the aberration 20 and 30 are appropriately proportional to the diameter and width of the aberration 20 and 30 in proportion to the bearing force of the force supporting rod 50 of the tide and the buoyancy of the buoyancy line 10. Large torque can be obtained.

On the other hand, the aberration (20, 30) is to use the horizontal flow of the algae, although depending on the situation of the algae in general, the algae flow rate varies depending on the depth, the flow rate is the fastest at the depth of 2-3m from the surface, The radius of rotation of the aberrations 20 and 30 is included in the maximum flow rate region by adjusting the diameters of the aberrations 20 and 30 and the width and length of the rotor blades 24 and 34 so as to obtain the maximum rotational force.

When the diameters of the aberrations 20 and 30 increase by 1, the rotation diameters of the rotary blades 24 and 34 of the aberration increase at a ratio of three. For example, when the diameter of the aberrations 20 and 30 is 2.5 m, the diameters of the rotary blades 24 and 34 of the aberrations 20 and 30 are increased to 7.5 to 9 m, which is generally below the surface of the water where the flow velocity is the strongest. Dense effective resistive flow rates of 2-3m are available.

The rotary shaft 40 is installed in the buoyancy line 10 in a horizontal direction in a horizontal direction and is rotatably installed through bearings and the like. Transmit the rotational force to the generator.

The support rod 50 is connected to the lifting and rotating so that the buoyancy line 10 always floats on the surface of the water and the buoyancy line 10 naturally changes direction according to the direction of the seawater so that the bow is placed in the opposite direction to the seawater direction. do. In other words, the support bar 50 is a circular cross-section for smooth rotation of the buoyancy line, it is natural that the surface treatment so that no protrusion on the surface.

The generator is connected to the rotary shaft 40 to generate power by receiving the rotational force of the rotary shaft 40, and is a known generator, the connection structure of the rotating shaft is the same as the connection structure of the known generator and the rotating shaft.

The action of the tidal current generator according to the present invention configured as described above is as follows.

The algae power generation device of the present invention is installed where the direction of seawater is irrelevant and the current of the ocean current is more than adequate for algae generation, and the method is fixed and fixed so that the upper portion of the support rod 50 is exposed out of the seawater in the sea, and both sides have aberrations. Installation is completed by inserting a buoyancy line 10 equipped with (20,30) (aberrations varying wing widths and diameters of aberrations depending on the strength of the birds).

When the flow of sea water is generated, the rotary blades 20 and 30 rotate by water current, and the rotary shaft 40 is rotated by the rotational force of the rotary blades 20 and 30 to operate the generator. As can be seen, the flow direction of the seawater may not flow from the bow of the buoyancy line 10 to the stern, in which case the buoyancy line 10 is naturally rotated around the support rod 50 by the flow of sea water, If the bow of the buoyancy line 10 maintains the opposite direction to the flow direction of the seawater, the buoyancy line 10 maintains its current position so that the seawater can flow in front of the wing plates 24 and 34 of the rotary blades 20 and 30. have. In addition, the water level of the sea water may vary due to the difference between tides, and the buoyancy line 10 is raised or lowered under the guidance of the support bar 50 to float on the surface of the sea water at all times. In addition, since the aberrations 20 and 30 are floated through the buoyancy line 10 and have a self-weight of "0", the aberrations 20 and 30 may self-start without a separate driving source even at low speed water currents.

Hereinafter, the operation of the rotary blades 24 and 34 of the aberrations 20 and 30 will be described in detail.

For convenience of explanation, the first aberration 20 will be described as an example, and the first rotary blade 24F of the three rotary blades 24F, 24S, and 24T is opened in the rim 23 by its own weight and submerged in seawater. In this state, if water current is generated by the flow of current, the first rotary blade 24F is forcibly rotated by the water current, and the first rotary blade 24F is rotated before the first and second rotary blades ( When the hinges 25F and 25S of 24F and 24S are flush with the surface of the water, the second rotary blade 24S, which is folded on the rim 23, opens and is immersed in seawater and rotated by water currents, while the first rotary blade 24F is opened. ) Out of the seawater is gradually folded to the rim 23 by its own weight to minimize the resistance of air and wind, and then the second rotary blades 24S rotates, the hinges of the second and third rotary blades 24S, 24T When 25S, 25T is level with the water surface, the third rotary blade 24T opens and is immersed in seawater, rotated by water currents, and rotates secondly. A dog (24S) is folded gradually into the rim (23) by its own weight. As described above, the rotary blades 24F, 24S, and 24T are sequentially submerged in seawater, rotated by water currents, and folded outside the seawater by the rim 23 to minimize air resistance.

Meanwhile, the rotor blades 34F, 34S, and 34T rotate in the same manner as the first aberration 20, and at this time, the rotor blades 24F, 24S, and 24T of the first aberration 20 are rotated. The rotor blades 34F, 34S, 34T of the second aberration and the second aberration are arranged at regular intervals along the circumferential direction without the hinges 25F, 25S, 25T (35F, 35S, 34T) as shown in the figure. As a result, greater torque can always be achieved than when the hinges match.

On the other hand, since the buoyancy line 10 and the support rod 50 is simply inserted state, it is quick and easy to remove the buoyancy line 10 from the support rod 50 and remount it.

As described above, according to the tidal current generator according to the present invention, when the direction of the water current is changed, the buoyancy line is actively rotated according to the flow direction of the water current, and the aberration maintains a suitable direction for power generation, and tidal tidal When the water level changes due to the difference, the buoyancy line rises and floats on the surface at all times, so that it can be applied to both the terrain where the high and low tide are repeated, the flow topography in one direction (river flow), and the terrain where the water level is changed.

And, since the center of the aberration is in the air (on the ship) rather than in the water, it is advantageous to use the force generated in the concentric circle of the water.

In addition, because the aberration is suspended by the buoyancy line, the aberration does not have self-weight, so self-start is possible even at low speed water flow, which eliminates the need for a separate driving force for starting, which can reduce manufacturing cost / maintenance cost and simplify the equipment. Can be.

Rotating blades are rotated by water with great rotational force in the water, and in air, they are folded to the rim to minimize air resistance, and the area where the water strikes is widened or the length of the aberration is increased, so that the cross-sectional area of the effective resistance surface is increased. Since it is possible to maximize the effective energy.

In addition, the installation cost is low because the underwater structure is one support rod, and the installation cost is low because it can be installed at a very low cost than to install the structure on the water, water and water.

In case of an emergency such as a typhoon, you can move to a safe place to be protected from natural disasters.

As the structure is not complicated, the failure rate due to other causes such as seaweed is remarkably lowered, and even if a failure occurs, it is easy to remove the cause and repair, and other maintenance and repair can also work in the repair shop after replacing the spare buoyancy line with aberration. Operation can be continued.

If you arrange the supporting rods and supporting rods in the form of a checker board, you can operate the aberration more efficiently, and install hundreds or thousands of them.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is an exploded perspective view of a tidal current generator according to the present invention.

Figure 2 is a rear view of the buoyancy line applied to the tidal current generator according to the present invention.

Figure 3 is a side view showing the operation of the rotary blade applied to the tidal current generator according to the present invention.

Figure 4 is a side view showing the operation of two rotary blades applied to the tidal current generator according to the present invention.

Figure 5 is a plan view showing the operation of the buoyancy line applied to the tidal current generator according to the present invention.

<Description of Signs for Main Parts of Drawings>

10: buoyancy line, 11: support rod receiving portion

12: holder, 13: storage

20,30: aberration, 21,31: hub

22,32 spoke, 23,33 rim

24,34: rotor blade, 24a, 34a: wing plate

24c, 34c: locking part, 25, 35: hinge

40: rotation axis, 50: support rod

Claims (9)

In the algae generator, Buoyant line (10) floating in the sea water made of a pointed streamlined player; One or more aberrations (20,30) having a plurality of foldable rotor blades floating in a state submerged in the buoyancy line and rotated by water currents; A rotating shaft 40 rotatably installing the aberration on the buoyancy line; A generator for generating power by receiving rotational force of the rotating shaft; And, the algae power generation, characterized in that it is fixed vertically in the water and the buoyancy line is adjusted in height along the surface and the support rod 50 for supporting the buoyancy line so that the bow of the buoyancy line is disposed in the reverse direction of the sea water Device. The method of claim 1, wherein the buoyancy line, one side of the support rod receiving portion 11 is opened and the holder 12 which is detached to the support rod receiving portion to support the support rod inserted into the support rod receiving portion does not fall. Algae generator, characterized in that. 3. The tidal current generator according to claim 2, wherein the buoyancy line further comprises at least one accommodating part (13) capable of accommodating the generator and the weight body and a cover (13a) for opening and closing the accommodating part. The tidal current generator according to claim 3, wherein the support rod receiving portion is widened downwardly. According to claim 1, wherein the aberration is a hub (21, 31) fixed to both ends of the rotary shaft, respectively, a plurality of spokes (22, 32) formed radially on both left and right sides of the hub, respectively A plurality of rims 23 and 33 formed at the free end of the spokes and one end portion of the rims 25 and 35 at the periphery of the rim are immersed in the seawater and rotated by water currents, and then folded to the rim by its own weight outside the seawater. Algae generator, characterized in that consisting of rotary blades (24, 34). 6. The hinge blade according to claim 5, wherein the rotary blades of the aberration are each formed on the left and right sides of the curved wing plates 24a and 34a rotated by water currents of the seawater, and hinged to the rims of the aberrations. Algae generator, characterized in that consisting of parts (24b, 34b). 7. The tidal current generator according to claim 6, wherein three rotary blades of the aberration are installed at intervals of 120 ° along the circumferential direction. The aberration of claim 5, wherein the aberrations are formed of first and second aberrations respectively provided on both sides of the rotation shaft, and the rotation blades of the first and second aberrations do not coincide with each other when viewed from the side, and have a predetermined interval. Algae generator, characterized in that arranged to leave. [Claim 9] The method of claim 8, further comprising: engaging portions (24c, 34c) formed on the rim side end of the rotary blade, stoppers (22a, 32a) formed on the rim to restrain the rotation of the rotary blade by the locking portion Algae generator, characterized in that the.