WO2011025156A2 - 파랑발전기 - Google Patents
파랑발전기 Download PDFInfo
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- WO2011025156A2 WO2011025156A2 PCT/KR2010/005121 KR2010005121W WO2011025156A2 WO 2011025156 A2 WO2011025156 A2 WO 2011025156A2 KR 2010005121 W KR2010005121 W KR 2010005121W WO 2011025156 A2 WO2011025156 A2 WO 2011025156A2
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- WIPO (PCT)
- Prior art keywords
- energy
- lever
- generator
- water
- blue
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/20—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B17/00—Other machines or engines
- F03B17/02—Other machines or engines using hydrostatic thrust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/403—Transmission of power through the shape of the drive components
- F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/406—Transmission of power through hydraulic systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Definitions
- the present invention relates to a wave generator, more specifically, because of the relatively high energy conversion efficiency can overcome the uncertainty of the natural environment, lead to active investment and research activities, and above all, to increase the efficiency of investment It relates to a wave generator that can improve the practicality and value as a clean energy source.
- the future-oriented, new power generation system using clean energy is not fuel consumption type, and the production cost per unit of power such as land occupancy, pre-investment, construction period, and operating cost should be competitive with existing commercial power by using clean energy.
- the annual utilization rate should be high and there should be no need for expensive storage facilities or alternative power generation.
- the method of generating the wave into energy includes the animal body type (including floating type), the vibration type (air turbine type), the hydraulic pressure type, the level difference type (set up type), and the monthly wave type.
- the length of the radius of the quadrant represents the maximum movement stroke of the cylinder
- the change in the momentum of the cylinder according to the up and down movement is large, but is significantly reduced when the crest is low. That is, as the crest is lowered, the energy conversion efficiency is drastically reduced as the cylinder movement stroke is acceleratedly reduced.
- the energy is proportional to the square of the velocity, so the lower the crest, the lower the movement speed of the cylinder, so it is difficult to apply at a lower crest.
- the floating vertical movement stroke a corresponds to the cylinder movement stroke a
- the floating vertical movement stroke b corresponds to the cylinder movement stroke b.
- the method of converting the wave motion into the mass motion of the floating body floating in accordance with the water level has a high output variability, disadvantageous stability against storms, but high conversion efficiency, Inexpensive production cost is the most advantageous method in terms of economics and efficiency.
- FIG. 2 shows a so-called hinge type hydraulic converter in which a hydraulic cylinder 1104 is connected using a pair of floating bodies 1101 and 1102 but having a hinge 1103 therebetween.
- the length of the radius of the quadrant represents the maximum movement stroke of the cylinder
- the energy is proportional to the square of the velocity, so the lower the crest, the lower the movement speed of the cylinder, so it is difficult to apply at a lower crest.
- the up and down movement strokes F / A of the floating bodies 1101 and 1102 correspond to the cylinder movement strokes C / A
- the floating movement strokes F / B of the floating bodies are corresponding to the cylinder movement strokes C / B.
- the vertical displacement difference of the floating bodies 1101 and 1102 that is, when the crest is low and when the crest is high, the difference between the stroke when the crest is low and the stroke when the crest is high may occur. .
- a pair of floats 1201 and 1202 are also used, but are connected by a hinge 1203 therebetween, and a so-called pelamis type of hydraulic cylinder 1204 is connected to the outside of the hinge 1203.
- a hydraulic inverter is shown in FIG. 3.
- the stroke of the hydraulic cylinder is represented by a value obtained by multiplying the height (W / H) by the interval / wavelength (W / L) of the hydraulic cylinder.
- the maximum stroke of the cylinder is 2 X 1.5 when the hydraulic cylinders 204 of the floating bodies 201 and 202 are 2 m apart.
- / 30 0.1 (m).
- the animal body type (floating type, pendulum type, etc.) is directly connected to the vibration type (air turbine drive), wall wave type (water wheel drive type), hydraulic pressure type, other wave pump driving type and floating body generator. It is reported that the generation efficiency is superior to that of the brother-in-law. This can be referred to marine energy engineering. Therefore, it is expected to be the most competitive energy source when improving the structure of the floating body and the lever, improving the mechanical stability and the conversion efficiency while reducing the energy conversion stage, and developing the technology corresponding to the output variability.
- the object of the present invention is that the energy conversion efficiency is relatively high, thereby overcoming the uncertainty of the natural environment, leading to active investment and research activities, and above all, the efficiency of investment can be increased to improve the practicality and value as a clean energy source. It is to provide a blue generator that can be made.
- the object includes: a plurality of rafts disposed on the water surface and free to move according to digging; A plurality of connecting mechanisms which connect the plurality of floating bodies to each other and convert the kinetic energy by converting the blue motion of any of the floating bodies into the lever motion amplified by the adjacent floating bodies; A plurality of generators installed in the plurality of floats to generate electricity; And an energy conversion unit connected to the plurality of connection mechanisms and the plurality of generators and converting kinetic energy from the plurality of connection mechanisms into rotational energy for driving the plurality of generators. Is achieved by.
- the object is arranged on the surface of the water to move freely according to the digging, but has a barge-shaped vessel shape that can fill the fluid so that the depth of diving can be adjusted, the length of the wave traveling direction is 1/1 of the design wavelength
- a first float manufactured to less than two A second body connected in a length direction with the first body at a position adjacent to the first body and manufactured in the same structure as the first body;
- a lever interconnecting the first and second bodies; And is connected to the lever, it is also achieved by the wave generator, characterized in that it comprises an energy generator for generating energy by using the kinetic energy of the lever.
- the energy conversion efficiency is relatively high, the uncertainty of the natural environment can be overcome, leading to active investment and research activities. It has the effect of improving value.
- the present invention in consideration of the situation where the wavelength is relatively large, it is most competitive by effectively improving the structure of the floating body and the lever, reducing the energy conversion step, increasing mechanical stability and conversion efficiency, and coping with output variability.
- As an energy source it is possible to improve its practicality and value, and furthermore, to ensure smooth output.
- FIG. 2 and 3 is a schematic diagram of a wave generator according to the prior art
- FIG. 5 is a schematic structural diagram of a wave generator according to an embodiment of the present invention.
- FIG. 6 is a partial operation state diagram of FIG.
- FIG. 7 is a side enlarged structural diagram of region B of FIG. 5;
- FIG. 8 and 9 are operation views according to the front structure of FIG.
- FIG. 10 is a flowchart of the blue generator of FIG.
- FIG. 11 is a plan view of a wave generator according to an installation state of FIG. 5;
- FIG. 12 is a schematic side structure diagram of a wave generator according to another embodiment of the present invention.
- FIG. 13 is a plan view of FIG. 12;
- 15 is a schematic structural diagram of a lever
- 16 is a block diagram of an energy generation unit
- FIG. 17 is an exemplary configuration diagram of the static pressure device shown in FIG. 16;
- FIG. 18 and 19 are exemplary views of the operation of the piston pump shown in FIG. 16.
- Figure 4 is a view for explaining the principle of the lever
- Figure 5 is a schematic structural diagram of a blue generator according to an embodiment of the present invention
- Figure 6 is a partial operation state of Figure 5
- Figure 7 is a region B of Figure 5 8
- FIGS. 9A and 9B are views illustrating the operation of FIG. 8
- FIG. 10 is a flowchart of a blue generator according to an embodiment of the present invention.
- 11 is a plan view showing the installation state of a wave generator according to an embodiment of the present invention.
- the wave generator of the present embodiment includes a plurality of floats 10a, 10b and raft disposed on the water surface and freely moving according to a wave height, and a plurality of floats 10a and 10a.
- a plurality of connecting mechanisms 20 for converting the kinetic energy by connecting 10b) to each other but converting the blue motion of one of the floating bodies 10a into lever motions amplified by the adjacent floating bodies 10b, and the plurality of floating bodies 10a, 10b) and a plurality of generators 30 to generate electricity, are connected to a plurality of connection mechanisms 20 and a plurality of generators 30 and the kinetic energy from the plurality of connection mechanisms 20 30 is provided with an energy conversion unit 40 for converting the rotational energy for driving.
- FIGS. 5 and 6 two floating bodies 10a and 10b are illustrated as shown in FIGS. 5 and 6.
- the connection structure between the floating bodies 10a to 10e ... may form three or more arrangements as shown in FIG.
- connection structure between the floating bodies 10a to 10e ... or the number of connecting of the floating bodies 10a to 10e ... can be appropriately designed according to the environmental conditions and the amount of power generated at the location where the present wave generator is to be installed. It is.
- the floating bodies 10a and 10b are objects which are arranged on the surface of the water and which move freely according to the wave height. Therefore, the floating body (10a, 10b) is made of a material possessing a certain buoyancy that does not immerse in water. These floats (10a, 10b) is the first means for the wave energy, in detail the energy conversion of the blue due to the float (10a, 10b) is as follows.
- blue waves are generated by the vertical motion of water particles and look like waves.
- the buoyancy bodies 10a and 10b move up and down on the water surface according to the wave, and the kinetic energy of the floating bodies 10a and 10b is converted into mechanical energy using the reaction force of the adjacent bodies. I can convert it.
- the conventional method has a problem that the economic efficiency is lowered by low energy conversion efficiency when the wave height is low and the wavelength and wave period is long.
- the frequency of wave generation is low except for the winter season, and the wave period is several seconds to several tens of minutes, which makes it an obstacle to practical use.
- a method of increasing the energy conversion yield of a relatively high frequency wave may be a key.
- a method of increasing buoyancy by adjusting the size and weight of the floats 10a and 10b may be considered.
- the wave period is 4 seconds
- the force is Although reduced to 1/5
- the movement of 20 cm of the body (10a, 10b) can be expanded to a mechanical movement of up to 100 cm.
- 1,000 tons of buoyancy allows energy conversion to move 200 tons in a reciprocating 25 cm / sec (50 cm / sec linear motion).
- the floating body (10a, 10b) is made of a width / height / height of 25m / 25m / 2m each to have a buoyancy 1,000 tons, for example, the present invention is not limited to this matter. .
- the coupling mechanism 20 connects the two bodies 10a and 10b to each other to convert the blue motion of one of the bodies 10a into lever motions amplified by the adjacent bodies 10b. It is responsible for converting.
- One coupling mechanism 20 may be provided in the two floating bodies 10a and 10b, but a pair is spaced apart between the floating bodies 10a and 10b in consideration of the large size of the floating bodies 10a and 10b as described above. It may be desirable to provide a degree.
- the coupling mechanism 20 is coupled to a plurality of pivot joints 21 having one end coupled to the floating bodies 10a and 10b, respectively, and a plurality of pivot joints 21 having the hinge axis 22 as an axis, and at least a floating body. And a rod-shaped lever 23 arranged over (10a, 10b), and a connecting arm 24 connecting both ends of the lever 22 and the energy conversion unit 40, respectively.
- the rod-shaped lever 23 is a medium for generating vertical kinetic energy in the connecting arm 24 while rotating along the pivot axis of the hinge shaft 22 with respect to the pivot joint 21.
- the lever 23 is linked to the movement during the movement of the body (10a, 10b), as shown in Figure 6, the movement of the lever 23 relative to the movement of the body (10a, 10b) is much larger. Therefore, even if the digging is low, since the lever 23 movement is large, it can effectively produce a lot of electricity.
- the generator 30 is a device that generates electricity based on the final rotational energy. Although schematically illustrated in FIG. 7, the generator 30 of the present embodiment is also flammed between the stator 30b disposed outside the rotor 30a as the internal rotor 30a rotates, similarly to a general generator. It acts to generate electricity according to the right hand law.
- the generator 30 is applied as a low speed generator in consideration of size, capacity, and cost, but this is not necessarily the case.
- the energy conversion unit 40 is connected to the connecting arm 24 on one side and moves up and down, and the first and second one-way linear teeth in opposite directions to both inner surfaces facing each other ( One-way rotation on the outer surface so as to rotate in one direction while being disposed in the linear gear 41 and 41a, 41b, and the first and second one-way linear teeth 41a, 41b which are selectively engaged with the teeth.
- a rotary gear 42 having a tooth 42a formed therein, an gearbox 44 connected to the gear shaft 43 of the rotary gear 42 to accelerate the rotational movement of the rotary gear 42, and a speed increaser 44 )
- a connecting shaft 45 for connecting the rotor 30a of the generator 30.
- the energy conversion unit 40, the linear teeth 41a, 41b of the linear gear 41 is a rotary gear based on the linear gear 41 is moved up or down in accordance with the movement of the lever 23. It may be provided in the form of a ratchet-type gear engaged with the one-way rotational teeth 42a of (42).
- the ratchet type gear is a kind of gear that can interact with the straight gear 41 only when the vertical pressing surface 42b is engaged with the straight teeth 41a, 41b of the straight gear 41.
- the energy conversion unit 40 of the present embodiment further includes safe guides 48a and 48b which are provided around the linear gear 41 to generate a signal for limiting the left and right movement distances of the linear gear 41. .
- the safety guides 48a and 48b may be provided as contact or non-contact sensors.
- the safety guides 48a and 48b may be provided in pairs on the left and right sides of the straight gear 41, and thus the left and right moving distances of the straight gears 41 may be provided.
- the linear gear 41 serves to be moved only within a predetermined pair of safety guides (48a, 48b).
- the method of converting and mobilizing the motion of the floating body 10a and 10b into mechanical motion in the same direction is applied, and thus, energy conversion can be performed more efficiently than in the related art.
- the horizontal movement of the floats 10a and 10b may be weak due to the floating and sliding of the floats 10a and 10b, and may be difficult to convert into energy.
- 10b) is capable of energy conversion.
- the wavelength of the blue wave is long, it can compensate for the conversion of the kinetic energy of the floating body (10a, 10b) between the wave period.
- the water tank 50 controls the mass of the floats 10a and 10b by the amount of water charged.
- the partition 51 is further provided inside the water tank 50.
- the partition wall 51 is a means for allowing the water in the tank 50 to be fluidized in the tank 50 may be used as an auxiliary means for inducing the inclined movement of the more stable body (10a, 10b).
- the blue wave generator of the present embodiment further includes a connection joint 70 interconnecting the floating bodies 10a and 10b.
- Hydraulic cylinders 71 provided on the 10a, 10b, respectively, and a universal joint 72 connecting the hydraulic cylinders 71 may be provided.
- the one-way rotary tooth 42a of the rotary gear 42 is the first one-way linear tooth of the straight gear 41.
- the tooth 41 meshes with the teeth 41a, and the rotary gear 42 rotates counterclockwise as the linear gear 41 moves upward in this state.
- the rotary gear 42 is continuously rotated counterclockwise to generate rotational energy, and the rotational energy is transmitted through the gear shaft 43 of the rotary gear 42. 44) and as it is delivered to the generator 30 via the connecting shaft 45, the generator 30 can generate electrical energy, the generated electricity can be used or stored as it is.
- the movement speed is improved by reducing the action force of the floating bodies 10a and 10b and expanding the movement distance within the same momentum, so that the actual energy conversion efficiency is significantly increased.
- the manufacturing and motorization technology of the floating body (10a, 10b) is required, but this can be sufficiently solved by the current technology, in particular, when loading the power generation system on the floating body (10a, 10b) to suppress the land demand and large structures are unnecessary This has the advantage of reducing upfront investment.
- the blue wave generator of the present embodiment has the advantage of being free from environmental pollution and reducing operating costs since there is no combustion site and consumption of chemicals such as a battery is not essential unlike other existing ones.
- the locational and seasonal constraints of the wave energy are not fixed facilities, but are easy to move and can be freely changed and selected to an effective location, thus saving preparation time and costs.
- the energy conversion efficiency is relatively high, the uncertainty of the natural environment can be overcome, leading to active investment and research activities. It can increase the value.
- FIG. 12 is a schematic side view structural view of a wave generator according to another embodiment of the present invention
- FIG. 13 is a plan view structural view of FIG. 12
- FIG. 14 is an exemplary view illustrating the operation of the lever
- FIG. 16 is a schematic structural view of the lever.
- the buoyant objects that is, the first and second bodies 110 and 120, may move up and down or inclined in place according to the rising or falling of the wave level of the blue wave. Do it.
- the wave energy E converted into the motion of the first and second bodies 110 and 120 may be calculated by the following Equation 1.
- the conversion energy is proportional to wave height (W / H) and the mass of the float and inversely proportional to wave period (W / C).
- the mass of the body is reduced.
- the mass condition of the floating body may be a means corresponding to an excessive operation during abnormal wave height (W / H). Since the weight of the floating body can be determined by the volume of the diving ( ⁇ ), even if the floor area ( ⁇ ⁇ ) is the same, it will be able to easily change the mass by adjusting the depth of the water filled inside.
- the displacement difference between the first and second floating bodies 110 and 120 may be an object of energy conversion.
- the blue wave generator according to the present embodiment is connected to the lever 130 and the lever 130 that interconnect the first and second bodies 110 and 120, the first and second bodies 110 and 120, and the lever 130.
- Energy generation unit 140 for generating energy by using the kinetic energy of 130.
- the first floating body 110 is disposed on the surface of the water to move freely according to the wave height, but has a barge-shaped vessel shape that can fill the fluid so that the depth of diving ( ⁇ ⁇ ) can be adjusted, the length of the blue traveling direction is designed wavelength Is made less than 1/2 of the.
- the first body 110 may form a curved portion 110a such that the front surface of the first body 110 may reduce frictional resistance due to water, and the rear surface of the first body 110 may form a vertical portion 110b. It may have a block structure.
- the second floating body 120 is connected to the first floating body 110 along the length direction at a position adjacent to the first floating body 110, and is manufactured in the same structure as the first floating body 110.
- the specification (L X W) of the first and second floating body 110, 120 may be designed in consideration of the energy level (7 ⁇ 8 Kw) of the wave force.
- the most ideal and efficient method converts the motion of the first and second floating bodies 110 and 120 into potential energy of water to generate aberration (turbine, 162) to get the generation output.
- This method can guarantee the smoothness of the output, and the efficiency of the aberration 162 exceeds 90%, so that the output is known to be much higher than other conversion methods.
- the lever 130 is an object that is connected to the first and second bodies 110 and 120 to move together with the first and second bodies 110 and 120.
- the displacement of the lever 130 is not very large. That is, in the case of the ⁇ 14-2> in which the first and second floating bodies 110 and 120 are inclined, the overall displacement P1 of the lever 130 is set toward the first and second floating bodies 110 and 120. In the case of ⁇ 14-3> in which the displacements of the lever 130 are summed (1 + 1 ') and the first and second floating bodies 110 and 120 are inclined, the position of the lever 130 is determined.
- the overall displacement P1 is the sum of the displacements of the lever 130 of the first and second floating bodies 110 and 120 (2 + 2 ').
- the first floating body 110, the second floating body 120 corresponding to the reaction force floating body in the direction in which the wave is incident in the longitudinal direction to maximize the water level difference between the wave and the wave to the half of the design wavelength ( It is preferable to increase the vertical displacement difference due to the time difference response of the buoyancy force between the first and second bodies 110 and 120, that is, the up and down displacement difference as shown in ⁇ 14-1> of FIG.
- the structures of the first and second floating bodies 110 and 120 as shown in FIGS. 12 and 13 are proposed.
- the lever 130 may be divided into a first subsidiary lever 130a provided in the first subsidiary 110 and a second subsidiary lever 130b provided in the second subsidiary 120.
- the first and second subsidiary levers 130a and 130b may be connected to each other by a connecting pipe 132 to which the hydraulic cylinder 131 is connected.
- the gaps between the first and second floating levers 130a and 130b may be adjusted by hydraulic pressure.
- FIG. 16 is a block diagram of an energy generation unit
- FIG. 17 is a diagram illustrating the configuration of the static pressure device illustrated in FIG. 16
- FIGS. 18 and 19 are diagrams illustrating an operation of the piston pump illustrated in FIG. 16.
- the energy generation unit 140 includes a piston pump 150 connected to the lever 130, and a pressurized water disposed adjacent to the piston pump 150 to be provided from the piston pump 150.
- a constant pressure device 170 connected to the pressure reservoir 160.
- the energy generation unit 140 is provided with an air compressor 173 for selectively supplying or blocking compressed air into the pressurized reservoir 160, and a pressure provided at one side of the air compressor 173 to sense the pressure in the pressurized reservoir 160.
- the sensor further includes a sensor 173a and an air supply line 173b connected to the other side of the air compressor 173.
- the static pressure device 170 is disposed over the top and bottom on the basis of the sea surface, the bottom is open and the top is a static pressure tank 171, the static pressure tank It is coupled to the lower region of 171, and has a weight 172 for maintaining the water level difference with the sea surface for the water in the positive pressure tank 171.
- the positive pressure tank 171 may be provided for pressure adjustment in a separate configuration from the pressure reservoir 160.
- the constant pressure tank 171 should have a minimum allowable volume to compensate for the pressure drop of the tank due to the volume loss condition due to the power generation output (a, see FIG. 17) and to maintain a constant pressure.
- the length L of FIG. 17 should be calculated as an allowable length in consideration of the volume reduction caused by the power generation output water a when the water level in the constant pressure tank 171 is, for example, -10M.
- the air in the constant pressure tank 171 is automatically supplied to the pressurizing reservoir 160. Accordingly, the positive pressure tank 171 is automatically reduced to the amount of air reduced by its own weight to move below the sea level to automatically maintain the pressure in the positive pressure tank 171.
- the air compressor 173 is operated. At this time, after sensing the pressure of the pressure sensor 173a, the compressed air is supplied into the pressurized water storage tank 160 through the air supply line 173b to prevent the pressure drop and simultaneously lift the positive pressure tank 171 to lower the dangerous level. To suppress and maintain a constant pressure.
- the piston pump 150 has first and second water inlets 151 and 152 formed on one side in an up and down direction, and first and second water outlets 153 and 154 along an up and down direction on the other side.
- a first inlet 151 and a first outlet 153, and a second inlet 152 which are disposed in the pump body 155 in a transverse direction and are connected to the lever 130 to drive in the longitudinal direction.
- a piston 156 that controls the space pressure on the side of the second water outlet portion 154.
- the first and second inlets 151 and 152 are connected to branch pipes 158a and 158b branched from the inlet pipe 158 connected to the foot valve 157 toward the first and second inlets 151 and 152.
- the second water outlets 153 and 154 are connected to the pressure reservoir 160 by an integrated pipe 159 in which the respective water outlet pipes 159a and 159b are joined together.
- the piping method can be changed as much as possible.
- the plurality of valves 151a to 154a of the present embodiment may be provided as a flat valve that is automatically opened and closed by pressure.
- the piston pump 150 is operated in double motion in both directions. That is, as shown in FIG. 18, when the piston 156 is downward, the valve 154a of the second water outlet portion 154 located in the chamber A is automatically closed by the regression water, and the second inlet portion 152 The valve 152a is opened to inhale seawater. In the case of Room B, the valve 151a of the first water inlet 151 is automatically closed by the water pressure, and the valve 153a of the second water outlet 153 is opened to release the pressurized water pressurized by the piston 156. do.
- valve 151a of the first inlet 151 is opened and the valve 152a of the second inlet 152 is closed as shown in FIG. 19, and the first outlet 153 is closed.
- the valve 153a is closed and the valve 154a of the second water outlet 154 is opened, and consequently water is directed to the pressure reservoir 160 through the first water inlet 151 and the second water outlet 154.
- the next aberration 162 is to be rotated.
- the value can be calculated by the following formula (2).
- the coastal distance in Korea is not high (W / H), so the displacement difference between the first and second bodies (110, 120) in the average wave height (W / H) is not large, so the movement distance should be increased.
- the points of the lever 130 are located at the most recent distance facing each other, and both ends of the lever 130, which are extended from the distance between the points, are connected to the piston 156 of the piston pump 150 attached to the first and second bodies 110 and 120.
- the piston pump 150 is operated by the expanded mechanical motion in accordance with the displacement motion of the first and second subsidiary body (110, 120) by connecting.
- the displacement difference between the first and second bodies 110 and 120 is converted into an expanded mechanical motion at the end of the lever 130 in proportion to the distance between the points and the distance from the point to the end of the lever.
- the installation of the expensive reservoir is disadvantageous to the buoyancy stability and structural stability of the first and second subsidiary (110,120), the manufacturing cost of the first and second subsidiary (110, 120) can be increased and may be the target of visual pollution.
- a vertical pressure tank 171 which is a vertical reservoir having a cross-sectional area of 2 m 2 or more and a height of about 15 m, is placed in seawater, and a weight 172 is attached to the lower portion thereof to increase the mass.
- a weight 172 is attached to the lower portion thereof to increase the mass.
- the movement of the first and second floating bodies 110 and 120 due to the buoyancy and the change in the momentum of the lever 130 are high in energy efficiency and the conversion efficiency of the hydro turbine is superior to that of the air turbine or hydraulic motor. Is virtually nonexistent.
- the stability against the crest is a problem of excessive energy release due to the typhoon in the summer, but in the present embodiment, the size and shape, mass, mooring system, etc. of the first and second floating bodies 110 and 120 have sufficient safety. It is possible to solve the problem by considering the design.
- the average wave height (W / H) is easily 0.5 m, 1 m, 1.5. It can be developed as a universal standard corresponding to m (for example, 10 KW, 100 KW, 250 KW, etc.) and can be commercialized when parts are standardized and can be supplied at an economical price.
- the structure of the first and second floating bodies 110 and 120 and the lever 130 is effectively improved and energy conversion is performed.
- the steps By reducing the steps, increasing the mechanical stability and conversion efficiency, and coping with the output variability, it is possible to improve the practicality and value as the most competitive energy source, and further ensure the output smoothness.
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims (16)
- 수면에 배치되어 파고에 따라 자유롭게 운동하는 다수의 부체(raft);상기 다수의 부체를 상호간 연결하되 어느 한 부체의 파랑 운동을 인접된 부체에 증폭된 레버 운동으로 전환시켜 운동에너지를 변환시키는 다수의 연결기구;상기 다수의 부체에 설치되어 전기를 생성하는 다수의 발전기; 및상기 다수의 연결기구 및 상기 다수의 발전기에 연결되며, 상기 다수의 연결기구로부터의 운동에너지를 상기 다수의 발전기의 구동을 위한 회전에너지로 변환시키는 에너지 변환유닛을 포함하는 것을 특징으로 하는 파랑발전기.
- 제1항에 있어서,상기 다수의 연결기구는,일단이 상기 다수의 부체에 각각 결합되는 다수의 피봇 조인트;힌지축을 축심으로 하여 상기 다수의 피봇 조인트와 결합되며 적어도 한 쌍의 부체에 걸쳐 배치되는 막대 형상의 레버; 및상기 레버의 양단과 상기 에너지 변환유닛을 각각 연결하는 연결 아암을 포함하는 것을 특징으로 하는 파랑발전기.
- 제1항에 있어서,상기 에너지 변환유닛은,일측에서 상기 연결 아암에 연결되어 상하 운동하며, 대면하는 양측 내면에 상호 반대 방향의 제1 및 제2 일방향 직선치열이 형성되는 직선기어;상기 직선기어의 내부에 배치되며, 상기 제1 및 제2 일방향 직선치열과 선택적으로 치형 맞물림되면서 일방향 회전하도록 외면에 일방향 회전치열이 형성되는 회전기어;상기 회전기어의 기어축에 연결되어 상기 회전기어의 회전 운동을 가속하는 증속기; 및상기 증속기와 상기 발전기의 회전자를 연결하는 연결축을 포함하는 것을 특징으로 하는 파랑발전기.
- 제3항에 있어서,상기 에너지 변환유닛은, 상기 직선기어가 상기 레버의 운동에 따라 상향 또는 하향되는 것에 기초하여 상기 직선기어의 직선치열이 상기 회전기어의 일방향 회전치열에 맞물림되는 라쳇(ratchet)형 기어의 형태로 마련되는 것을 특징으로 하는 파랑발전기.
- 제3항에 있어서,상기 에너지 변환유닛은 상기 직선기어의 주변에 마련되어 상기 직선기어의 좌우 이동거리를 제한하기 위한 세이프 가이드를 더 포함하는 것을 특징으로 하는 파랑발전기.
- 제1항에 있어서,상기 부체들의 운동에너지 보완을 위하여 상기 부체들의 하부에 결합되되 내부에 일정량의 물이 충전되고 상기 물의 충전량으로 상기 부체의 질량을 조절하는 수조를 더 포함하는 것을 특징으로 하는 파랑발전기.
- 제6항에 있어서,상기 수조의 내부에는 적어도 하나의 격벽이 더 마련되는 것을 특징으로 하는 파랑발전기.
- 제1항에 있어서,인접된 상기 부체들 간을 상호 연결하는 연결 조인트를 더 포함하는 것을 특징으로 하는 파랑발전기.
- 수면에 배치되어 파고에 따라 자유롭게 운동하되 잠수(潛水) 심도가 조절될 수 있도록 내부에 유체를 채울 수 있는 바지형의 선박 형상을 가지며, 파랑 진행 방향의 길이가 설계파장의 1/2 미만으로 제작되는 제1 부체;상기 제1 부체와 인접된 위치에서 상기 제1 부체와 길이 방향을 따라 연결되며, 상기 제1 부체와 동일한 구조로 제작되는 제2 부체;상기 제1 및 제2 부체를 상호 연결하는 레버; 및상기 레버와 연결되며, 상기 레버의 운동에너지를 이용하여 에너지를 발전시키는 에너지 발전부를 포함하는 것을 특징으로 하는 파랑발전기.
- 제9항에 있어서,상기 레버는,상기 제1 부체에 마련되는 제1 부체용 레버; 및상기 제2 부체에 마련되는 제2 부체용 레버를 포함하며,상기 제1 및 제2 부체용 레버는 유압 실린더가 연결된 연결관에 의해 상호간 연결되되 유압에 의해 사이의 간격이 조절되는 것을 특징으로 하는 파랑발전기.
- 제10항에 있어서,상기 에너지 발전부는,상기 레버와 연결되는 피스톤 펌프;상기 피스톤 펌프에 인접하게 배치되어 상기 피스톤 펌프 측에서 제공되는 가압수가 저장되는 가압 저수조;상기 가압 저수조 내의 물을 이용하여 회전운동되는 수차;상기 수차와 연결되어 회전운동에 의한 회전에너지를 전기에너지로 변환시키는 발전기; 및상기 가압 저수조에 연결되는 정압장치를 포함하는 것을 특징으로 하는 파랑발전기.
- 제11항에 있어서,상기 정압장치는,해수면을 기준으로 상부 및 하부에 걸쳐 배치되되 하부는 개방되고 상부는 폐쇄된 정압탱크; 및상기 정압탱크의 하부 영역에 결합되며, 상기 정압탱크 내의 물에 대한 상기 해수면과의 수위차를 유지시키는 중량추를 포함하는 것을 특징으로 하는 파랑발전기.
- 제11항에 있어서,상기 에너지 발전부는,상기 가압 저수조 내로 압축 공기를 선택적으로 공급 또는 차단하는 공기 압축기;상기 공기 압축기의 일측에 마련되어 상기 가압 저수조 내의 압력을 감지하는 압력감지센서; 및상기 공기 압축기의 타측에 연결되는 공기공급라인을 더 포함하는 것을 특징으로 하는 파랑발전기.
- 제11항에 있어서,상기 피스톤 펌프는,일측에 상하 방향을 따라 제1 및 제2 입수부가 형성되고, 타측에 상하 방향을 따라 제1 및 제2 출수부가 형성되는 펌프 바디;상기 제1 및 제2 입수부, 그리고 상기 제1 및 제2 출수부 내에 각각 마련되어 해당 관로를 선택적으로 개폐하는 다수의 밸브;상기 펌프 바디 내에 횡방향으로 배치되되 상기 레버와 연결되어 종방향으로 구동하면서 상기 제1 입수부 및 상기 제1 출수부, 그리고 상기 제2 입수부 및 상기 제2 출수부 측의 공간 압력을 제어하는 피스톤을 포함하는 것을 특징으로 하는 파랑발전기.
- 제14항에 있어서,상기 다수의 밸브는 압력에 의해 자동으로 개폐되는 플랫 밸브인 것을 특징으로 하는 파랑발전기.
- 제14항에 있어서,상기 제1 및 제2 입수부는 풋 발브에 연결된 입수관으로부터 상기 제1 및 제2 입수부 쪽으로 분기된 분기관과 연결되며,상기 제1 및 제2 출수부는 각각의 출수관이 한데 합쳐진 통합관에 의해 상기 가압 저수조와 연결되는 것을 특징으로 하는 파랑발전기.
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WO2011025156A3 (ko) | 2011-06-03 |
US20120153627A1 (en) | 2012-06-21 |
KR20110021086A (ko) | 2011-03-04 |
IN2012DN02417A (ko) | 2015-08-21 |
US8618686B2 (en) | 2013-12-31 |
KR101036436B1 (ko) | 2011-05-23 |
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