JP2002303242A - Wave power generator unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wave power generator unit for obtaining the electric power by using the wave power. SOLUTION: A first rubber board 40 and a second rubber board 50 are disposed upward and downward nearly in parallel. A part of the sea surface 20 where the wave power is generated is thrust to the outside of the first rubber board 40 so that the first rubber board 40 is repeatedly bent forward/backward to be vibrated. Then, air is continuously sucked from a second air chamber 70 on the outside of the second rubber board 50 into a first air chamber 60 formed between the first rubber board 40 and the second rubber board 50 through an air hole 52 formed on the second rubber board. Next, the air is sent to a spiral tube 100 through an air outlet channel 110 to form compressed air. Then, the compressed air is sent to a turbine 130 and a generator 120 is rotated by the turbine 130.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave power generator for obtaining electric power by utilizing the wave power continuously and naturally generated in a seawater portion near the sea surface, which is installed on a coast or a structure on the sea. About.

[0002]

2. Description of the Related Art Due to the depletion of fossil energy and the like, the development of a power generator using alternative energy that is friendly to the natural environment has been eagerly desired. As one of the power generation apparatuses using this clean energy, there is a wave power generation apparatus using wave energy that is repeatedly and naturally generated in a seawater portion near the sea surface.

[0003]

However, conventional wave power generators are not widely used because of insufficient power generation efficiency or large scale of the equipment, resulting in increased costs. It hasn't been reached yet.

[0004] The present invention has been made in view of such problems, and is a wave power generation device capable of efficiently obtaining electric power by using wave power repeatedly and naturally generated in a seawater portion near the sea surface. It is an object of the present invention to provide a simple and inexpensive wave power generation device that is used by being installed on a shore or offshore structure.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, a wave power generation device according to the present invention is provided at a height substantially equal to the height of the sea surface of a shore or a structure on the sea. The seawater intake for taking in the seawater portion where the seawater is generated is provided in the lateral direction, and the inner part of the seawater intake is sealed by a first elastic rubber plate that rises substantially up and down, and the first rubber plate Inside the rear structure, a second rubber plate that can be extended and contracted is spaced apart from the first rubber plate by a predetermined distance.
The peripheral side between the second rubber plate and the first rubber plate is sealed by a side wall, and is arranged between the first rubber plate and the second rubber plate. A first air chamber having a closed structure is formed on the inside of the structure behind the second rubber plate, and a second air chamber having a closed structure, one of which is surrounded by a second rubber plate, is formed, The second rubber plate is provided with an air hole for allowing air to flow from the second air chamber to the first air chamber, and the second air chamber has a structure for allowing outside air to flow into the second air chamber from outside the structure. The outside air inflow path is connected, and the outside air inflow path is provided with a check valve for preventing outside air flowing into the second air chamber from flowing back into the atmosphere outside the structure through the outside air inflow path, A spiral tube in which a pipe is spirally wound inside or near the structure. Turbine and is provided for rotating the generator and the generator, the outer end first said volute tube
The air chamber is connected by an air outflow path, the inner end of the spiral tube and the compressed air intake of the turbine are connected by a compressed air flow path, and the compressed air discharge port of the turbine is structured through the compressed air discharge path. It is characterized in that it is communicated with the atmosphere outside the object.

[0006] In this wave power generation device, wave power near the sea surface continues to be generated spontaneously inside a seawater intake provided at a height substantially equal to the height of the sea surface of a shore or a structure on the sea. Seawater part can be taken in. Then, the seawater portion where the wave force is repeatedly generated can be abutted substantially at right angles to the first vertically expandable and retractable rubber plate that seals the inner part of the seawater intake. The first rubber plate can be repeatedly pushed and pulled back and forth in the front-rear direction to be continuously bent by the seawater portion where the wave force is repeatedly and naturally generated. Then, the seawater portion where the wave force continues to be generated spontaneously allows the first rubber plate to be bent in a substantially circular arc shape in the front-rear direction and continue to vibrate. More specifically, when the wave front of the seawater portion where the wave force is repeatedly generated hits the first rubber plate at a substantially right angle, the elastic first rubber plate is bent backward in a substantially arc shape. be able to. Conversely, when the wave bottom of the seawater portion where the wave force is continuously being generated hits the first rubber plate, the surface tension acting between the seawater portion of the wave bottom and the first rubber plate and Due to the elastic force of the first rubber plate, the first rubber plate can be pulled back and bent forward.

In this case, the first rubber plate is moved backward and forward through the first air chamber in accordance with the vibration motion in the front-rear direction of the first rubber plate, which is repeatedly bent in a substantially arc shape and vibrates in the front-rear direction. The second rubber plate arranged side by side with the first rubber plate to stand upright has an amplitude smaller than the amplitude of the first rubber plate in the front-rear direction, and is substantially synchronized with the first rubber plate.
The vibration can be continued by being bent in a substantially arc shape in the front-rear direction. Then, the volume in the first air chamber formed between the first rubber plate and the second rubber plate can be repeatedly increased and decreased. Then, every time the volume of the first air chamber is repeatedly increased, the air in the second air chamber can be continuously forced to repeatedly flow into the first air chamber through an air hole provided in the second rubber plate. .

Further, as described above, every time the volume of the first air chamber is repeatedly increased, the air in the second air chamber is continuously flown into the first air chamber through the air hole of the second rubber plate. By opening a check valve provided in the outside air inflow passage, outside air can be repeatedly supplied from the outside of the structure into the second inflow chamber through the outside air inflow passage. Conversely, every time the volume in the first air chamber repeatedly decreases, the air in the first air chamber repeatedly flows back into the second air chamber through the air holes in the second rubber plate. By closing the check valve, it is possible to prevent the air in the first air chamber and the second air chamber from being pushed back into the atmosphere outside the structure through the outside air inflow path and from flowing back into the atmosphere. Each time the volume in the first air chamber is repeatedly reduced, the air in the first air chamber is introduced into the atmosphere outside the structure through the air holes in the second rubber plate, the second air chamber, and the outside air inflow passage. It can prevent backflow.

As a result, every time the volume in the first air chamber is repeatedly reduced, a part of the air in the first air chamber is continuously forced to flow into the outer end of the spiral tube through the air outflow passage. it can. Then, the air can be forcibly fed toward the inner end of the spiral tube while gradually compressing the inside of the spiral tube in which the pipe is spirally wound.

The compressed air that has reached the inner end of the spiral tube while being gradually compressed inside the spiral tube can be forced to continuously flow into the compressed air intake of the turbine through the compressed air flow passage. Then, the compressed air can be abutted against the blades of the turbine, and the turbine can be continuously rotated by the compressed air. Then, it is possible to keep rotating the generator arranged in parallel with the turbine together with the turbine, and to continue generating electric power by the generator. The compressed air forced into the turbine is circulated inside the turbine while hitting the blades of the turbine, and then discharged from the compressed air discharge port of the turbine to the atmosphere outside the structure through the compressed air discharge path. be able to.

[0011] Further, since the second rubber plate is arranged upright substantially in parallel behind the first rubber plate and arranged side by side, the sea is rough, and the first rubber plate flows from the seawater intake and flows into the first rubber plate. The crest of the seawater portion that hits the board is large, and the crest of the seawater portion where the large wave force is generated is the first
When the rubber plate is greatly bent rearward, the first rubber plate portion greatly bent rearward can be received by the second rubber plate surface behind the first rubber plate portion. Then, it is possible to prevent the first rubber plate from being excessively flexed rearward to be damaged and the like. And the 1st rubber board which bends greatly back and vibrates can be reinforced by the 2nd rubber board.

In the wave power generator according to the present invention, the air discharged from the first air chamber to the air outflow passage is temporarily stored in the air outflow passage, and the flow velocity of the air is leveled to a substantially uniform speed. Preferably, a structure is provided with a surge tank for allowing the air whose flow velocity has been leveled to flow into the outer end of the spiral tube through an air outflow passage.

[0013] In this wave power generation device, the air that is repeatedly forcibly discharged from the first air chamber into the air outflow passage is temporarily stored in a large volume surge tank provided in the air outflow passage. You can continue. Next, after the flow velocity of the air temporarily stored in the surge tank is leveled to a substantially uniform velocity in the large-volume surge tank, the air in the surge tank whose flow velocity has been leveled is discharged to the air. Through the passage, the forced inflow into the outer end of the spiral tube can be continued. Then, the air whose flow velocity has been leveled can be gradually compressed through the inside of the spiral tube. Then, the compressed air whose flow velocity has been leveled can be continuously forced to flow into the compressed air intake of the turbine through the compressed air flow passage. Then, the compressed air whose flow velocity has been leveled can be kept hitting the blades of the turbine, and the turbine can be continuously rotated at a substantially equal speed. Then, it is possible to keep rotating the generators arranged side by side at the turbine at a substantially equal speed, and to stably and continuously generate electric power of a constant potential by the generators.

In the wave power generator according to the present invention, the ceiling wall of the seawater intake is formed to be higher than the height of the sea surface at the time of high tide, and the floor wall of the seawater intake is formed at the height of the sea surface at low tide. It is preferable to adopt a structure formed lower than the above.

In this wave power generation device, the ceiling wall of the seawater intake provided in the lateral direction of the shore or the structure on the sea is formed higher than the sea level at the time of high tide. Even at the time, the height of the sea surface can be prevented from rising above the ceiling wall of the seawater intake. Then, even at high tide, the seawater portion where the wave force near the sea surface continues to be generated repeatedly continues to accurately strike the first rubber plate sealing the inner part of the seawater intake through the seawater intake. be able to. And, even at high tide, the first rubber plate can be bent in a substantially circular arc shape in the front-rear direction and continuously vibrated accurately even at the time of high tide due to the seawater portion where the wave force continues to be generated repeatedly. In addition, since the bottom wall of the seawater intake port provided in the lateral direction of the coast or the structure on the sea is formed lower than the sea level at low tide, the sea level at sea level is low even at low tide. It can be prevented from descending below the floor wall of the intake. And, even at the time of low tide, the seawater part near the sea surface where the wave power continues to occur repeatedly,
Through the seawater intake, it is possible to keep accurately abutting the first rubber plate sealing the inner part of the seawater intake. Then, even at low tide, the first rubber plate can be bent in a substantially circular arc shape in the front-rear direction and continuously vibrated accurately even at low tide due to the seawater portion in which the wave force is repeatedly generated.

[0016]

1 and 2 show a preferred embodiment of a wave power generator according to the present invention. FIG. 1 is a schematic structural explanatory view, and FIG. 2 is a partially enlarged structural explanatory view. . Hereinafter, the wave power generation device will be described.

FIG. 1 shows an example in which the wave power generation device of the present invention is installed on a seawall or a seawall, such as a concrete seawall, which is one of the structures 10 on the seashore or sea. I have. In this wave power generator, the structure (breakwater)
A seawater intake 30 is provided at a height substantially equal to the sea level of the sea side 14 opposite to the shore side 10 of the seawater 10 to take in the seawater portion 20 where the wave force near the sea surface is repeatedly and naturally occurring. ing. And the seawater intake 3
The opening part which spreads like a trumpet of 0 faces the sea side 14. Then, through the opening, the seawater portion 20 where the wave force near the sea surface on the sea side 14 is generated is connected to the seawater intake 30.
It is constituted so that it can be taken in smoothly inside.

The inner part of the seawater intake port 30 is sealed by a first rubber plate 40 made of a stretchable synthetic rubber or the like which stands substantially up and down. The periphery of the first rubber plate 40 is connected to the seawater intake 30 through a thick packing 42.
It is fixed in close contact with the inner part of the surrounding structure (breakwater) 10. Further, seawater is prevented from entering the inside of the structure (breakwater) 10 from around the first rubber plate 40. Inside the structure (breakwater) 10 behind the first rubber plate 40, a second rubber plate 50 made of elastic synthetic rubber or the like is provided.
However, they are arranged side by side at a predetermined distance from the first rubber plate 40 and substantially vertically upright in parallel with the first rubber plate 40.

The peripheral portion between the first rubber plate 40 and the second rubber plate 50 is sealed without any gap by a side wall 54 made of a rubber plate or the like. The peripheral side portion is the side wall 5.
The first rubber plate 40 and the second rubber plate 5 sealed by 4
0, a first air chamber 60 having a closed structure is formed. Structure (breakwater) 10 behind the second rubber plate 50
On the inside, a second air chamber 70 having a closed structure, one of which is surrounded by the second rubber plate 50, is formed adjacent to the second rubber plate 50. The second rubber plate 50 has an air hole 5 through which air flows from the second air chamber 70 into the first air chamber 60.
2 are provided.

In the second air chamber 70, a structure (breakwater) 1
0 An outside air inflow passage 80 for allowing outside air to flow into the second air chamber 70 from outside is connected. The outside air inflow passage 80 penetrates the inside of the structure (breakwater) 10, and the tip is exposed above the sea surface at the upper end of the shore 12 of the structure (breakwater) 10.
Outside air inflow passage 80 arranged inside structure (breakwater) 10
The portion is provided with a check valve 90 for preventing the outside air flowing into the second air chamber 70 from flowing back into the atmosphere outside the structure (breakwater) 10 through the outside air inflow passage 80.

In a room 11 provided inside a structure (breakwater) 10, a spiral tube 100 in which a pipe is spirally wound a plurality of times is installed. The outer end of the spiral tube 100 and the upper end of the first air chamber 60 are connected by an air outflow passage 110 disposed inside the structure (breakwater) 10. In the same room 11 inside the structure (breakwater) 10, a generator 120 and a turbine 130 for rotating the generator are arranged side by side.
And, the turbine 13 installed in the same room 11
0 and the inner end of the spiral tube 100 are connected to a compressed air flow passage 1 disposed inside a structure (breakwater) 10.
They are connected by 40. The compressed air discharge port of the turbine 130 passes through a structure (breakwater) through a compressed air discharge path 150 disposed between the inside of the structure (breakwater) 10 and the sea surface above the upper end of the shore 12 of the structure (breakwater) 10. 10) It is communicated with the outside atmosphere. In addition, the spiral tube 100, the turbine 130, and the power generator 120 can be installed on a coast near the structure (breakwater) 10 or the like.

The wave power generator shown in FIGS. 1 and 2 is configured as described above. In this wave power generation device, a seawater intake port 30 provided at substantially the same height as the sea surface on the sea side 14 opposite to the shore side 12 of the structure (breakwater) 10 is provided near the sea surface. It is possible to take in the seawater portion 20 in which the wave force of the seawater repeatedly and naturally occurs. Then, the seawater portion 20 in which the wave force continues to be repeatedly generated can be abutted substantially at right angles to the first rubber plate 40 which stands up and down and which is substantially up and down, which seals the inner part of the seawater intake 30. it can. Then, the seawater portion 20 in which the wave force continues to be generated spontaneously allows the first rubber plate 40 to be repeatedly pushed and pulled back in the front-rear direction. The seawater portion 20 in which the wave force continues to be generated spontaneously causes the first
The rubber plate 40 can be repeatedly vibrated in a substantially arc shape in the front-rear direction to continue to vibrate. More specifically, when the wave front of the seawater portion 20 in which the wave force is repeatedly generated hits the first rubber plate 40 at a substantially right angle, the elastic first rubber plate 40 is moved backward in a substantially arc shape. Can be bent. Conversely, when the wave bottom of the seawater portion 20 in which the wave force is continuously generated hits the first rubber plate 40, the wave bottom acts between the seawater portion 20 and the first rubber plate 40. Surface tension and first rubber plate 4
Due to the elastic force of 0, the first rubber plate 40 can be pulled back and flexed in a substantially arc shape.

At this time, the first rubber plate 40, which is repeatedly pushed and pulled back and forth in the front-rear direction by the seawater portion 20 in which the wave force continues to be generated and continuously vibrates in a substantially arcuate shape in the front-rear direction. Following the vibration motion, the second rubber plate 50 is disposed on the first rubber plate 40 via the first air chamber 60 so as to be substantially upright in the rear of the first rubber plate 40. With the amplitude smaller than the amplitude in the front-rear direction of the first rubber plate 40, the first rubber plate 40 can be repeatedly vibrated in a substantially arc shape in the front-rear direction, substantially in synchronization with the first rubber plate 40, and continuously vibrated. Then, the volume in the first air chamber 60 formed between the first rubber plate 40 and the second rubber plate 50 can be repeatedly increased and decreased. Then, each time the volume in the first air chamber 60 is repeatedly increased, the air in the second air chamber 70 is introduced into the first air chamber 60 through the air holes 52 provided in the second rubber plate 50. The forced inflow can be continued repeatedly.

Also, as described above, the first air chamber 60
When the air in the second air chamber 70 continues to flow repeatedly into the first air chamber 60 through the air holes 52 of the second rubber plate every time the internal volume repeatedly increases, the outside air inflow path 8
The second check valve 90 provided at the first opening is opened to allow outside air from the outside of the structure (breakwater) 10 to pass through the outside air inflow passage 80 and then to the second
The air can be continuously supplied into the air chamber 70 repeatedly. Conversely, every time the volume in the first air chamber 60 is repeatedly reduced, the air in the first air chamber 60 repeatedly flows back into the second air chamber 70 through the air holes 52 of the second rubber plate. At this time, the check valve 90 is closed, and the air in the first air chamber 60 and the second air chamber 70 is released from the outside air inflow passage 8.
Through 0, it can be prevented from being pushed back into the atmosphere outside the structure (breakwater) 10 and flowing back into the atmosphere.
Each time the volume in the first air chamber 60 is repeatedly reduced, the air in the first air chamber 60 flows through the air holes 52 of the second rubber plate, the inside of the second air chamber 70, and the outside air inflow passage 80. It is possible to prevent backflow into the atmosphere outside the structure (breakwater) 10.

As a result, every time the volume in the first air chamber 60 is repeatedly reduced, a part of the air in the first air chamber 60 is repeatedly transferred to the outer end of the spiral tube 100 through the air outflow passage 110. Forced inflow can be continued. And
While continuously compressing the air inside the spiral tube 100 in which the pipe is spirally wound, the spiral tube 10
Forced feeding can be continued toward the inner end of zero.

The compressed air that has reached the inner end of the spiral tube 100 while being gradually compressed inside the spiral tube 100 is forced to continuously flow into the compressed air intake of the turbine 130 through the compressed air flow passage 140. Can be. Then, the compressed air can be abutted against the blades of the turbine 130, and the turbine 130 can be continuously rotated by the compressed air. And the turbine 1
It is possible to continue rotating the generator 120 arranged in parallel with the turbine 30 together with the turbine 130, and to continuously generate electric power by the generator. The compressed air forced into the turbine 130 hits the blades of the turbine 130,
After circulating inside the turbine 130, the turbine 130
Of the compressed air discharge passage 150
Can be discharged into the atmosphere outside the structure (breakwater) 10.

Further, since the seawater intake 30 is provided on the rough sea side 14 opposite to the shore 12 of the structure (breakwater) 10, the seawater inlet 30 is provided near the sea surface 20 near the rough sea surface. The first rubber plate 40 that seals the inner part of the seawater intake 30 is repeatedly pushed and pulled back and forth strongly in the front-rear direction using the wave force that is repeatedly generated, and is largely bent in a substantially arc shape to vibrate. You can continue.
And the volume in the first air chamber 60 formed between the first rubber plate 40 and the second rubber plate 50 can be greatly increased or decreased. Then, a large amount of air can be continuously forced to flow into the outer end of the spiral tube 100 through the air outflow passage 110 from the first air chamber 60 whose volume repeatedly increases and decreases. Then, the large amount of air is gradually compressed through the inside of the spiral tube 100 to be compressed air, and the compressed air can be continuously flowed in a large amount into the compressed air intake of the turbine 130 through the compressed air flow passage 140. . Then, the large amount of compressed air can be abutted against the blades of the turbine 130, and the turbine 130 can be continuously rotated powerfully and at high speed. Then, it is possible to continuously rotate the generator 120 arranged in parallel with the turbine 130 at a high speed and to increase the electric power continuously generated by the generator 120.

Further, since the second rubber plate 50 is arranged upright and substantially vertically behind the first rubber plate 40 so as to be substantially parallel to the first rubber plate 40, the seawater intake port 3 is provided.
When the wave front of the seawater portion 20 flowing from zero and hitting the first rubber plate 40 becomes large, and the wavefront of the seawater portion 20 in which the large wave force is generated largely deforms the first rubber plate 40 backward. In addition, the portion of the first rubber plate 40 largely bent backward can be received by the surface of the second rubber plate 50 behind the first rubber plate 40. And the first rubber plate 4
0 can be prevented from being excessively flexed rearward and damaged. Then, the first rubber plate 40 that largely bends and vibrates in the front-rear direction can be reinforced by the second rubber plate 50.

In the wave power generation device shown in the figure, as shown in FIG. 1, air discharged from the inside of the first air chamber 60 to the air outflow passage 110 is temporarily stored in the air outflow passage 110.
It is preferable to provide a surge tank 160 having a large volume for leveling the flow velocity of the air to a substantially uniform velocity and for flowing the air flow leveled to the outer end of the spiral tube 100 through the air outflow passage 110. .

In this case, the air that is repeatedly forcibly discharged from the first air chamber 60 into the air outflow passage 110 is temporarily stored in a large volume surge tank 160 provided in the air outflow passage 110. You can continue. Next, after the flow velocity of the air temporarily stored in the surge tank 160 is leveled to a substantially uniform velocity in the large-volume surge tank 160, the air in the surge tank 160 whose flow velocity is leveled is reduced. , Can be forced to flow into the outer end of the spiral tube 100 through the air outlet channel 110. Then, the air whose flow velocity has been leveled can be gradually compressed through the inside of the spiral tube 100. Then, the compressed air whose flow velocity is leveled is supplied to the compressed air flow passage 14.
0, the forced flow into the compressed air intake of the turbine 130 can be continued. Then, the compressed air whose flow velocity has been leveled can continue to abut against the blades of the turbine 130, and the turbine 130 can be continuously rotated at a substantially uniform speed. And the turbine 13
It is possible to keep rotating the generators 120 arranged side by side at almost the same speed, and to generate power of a constant potential stably and continuously by the generators 120.

In the wave power generator shown in the figure, the ceiling wall of the seawater intake 30 is preferably formed higher than the sea level at high tide. At the same time, the floor wall of the seawater intake 30 may be formed lower than the sea level at low tide.

In this case, the ceiling wall of the seawater intake 30 provided in the lateral direction of the structure 10 is formed higher than the sea level at the time of high tide. The height can be prevented from rising above the ceiling wall of the seawater intake 30. Further, even at the time of high tide, the seawater portion 20 where the wave force near the sea surface continues to be generated repeatedly is sealed through the seawater intake 30 to the inner part of the seawater intake 30.
The rubber plate 40 can be kept accurately abutted. And the seawater part 2 where the wave power keeps generating repeatedly
Due to 0, even at the time of high tide, the first rubber plate 40 can be repeatedly pushed and pulled back and forth in the front-rear direction to bend into a substantially circular arc shape and continue to vibrate accurately. In addition, the seawater intake 3 provided in the lateral direction of the structure 10.
Since the bottom wall of 0 is formed lower than the sea level at low tide, it is possible to prevent the height of the sea surface from dropping below the floor wall of the seawater intake 30 even at low tide. it can. Then, even at the time of low tide, the seawater portion 20 where the wave force near the sea surface continues to be repeatedly generated is passed through the seawater intake 30 to the first rubber plate 40 sealing the inner part of the seawater intake 30. You can keep hitting it accurately. Then, even at low tide, the first rubber plate 40 is repeatedly pushed and pulled back in the front-rear direction to bend into a substantially circular arc shape and vibrate accurately due to the seawater portion 20 in which the wave force is repeatedly generated. You can continue.

In the wave power generation device shown in FIG. 1, the inner diameter of the spirally wound pipe as shown in FIG. It is better to use a type that is gradually narrowed toward the small diameter. In that case, as the air that has flowed in from the outer end of the spiral tube 100 circulates inside the spiral tube 100 whose inner diameter is gradually narrowed toward the inner end, the air is reduced. The compression can be continued efficiently and gradually. Then, a compressed air flow path 140 is formed from the inner end of the spiral tube 100.
, The pressure of the compressed air forced to flow into the compressed air intake of the turbine 130 can be increased. Then, the turbine 1
30 can be rotated at a high speed.

The wave power generator of the present invention can be installed on a buoy, a ship, or the like floating on the sea, and used as a power generator.
It is possible.

[0035]

As described above, according to the wave power generation device of the present invention, it is possible to efficiently generate compressed air by using the wave power that is repeatedly and naturally generated in the seawater near the sea surface. . Then, the turbine is rotated by the compressed air, so that the generator arranged in parallel with the turbine can be rotated. And it becomes possible to continue generating electric power efficiently by the generator.

[Brief description of the drawings]

FIG. 1 is a schematic structural explanatory view of a wave power generation device of the present invention.

FIG. 2 is an explanatory view of a partially enlarged structure of the wave power generation device of the present invention.

FIG. 3 is a structural explanatory view of a spiral tube of the wave power generation device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Coastal or marine structure 12 Shore side 14 Sea side 20 Seawater part 30 Seawater intake 40 First rubber plate 42 Packing 50 Second rubber plate 52 Air hole 60 First air chamber 70 Second air chamber 80 Outside air inflow passage 90 Check valve 100 Spiral tube 110 Air outflow passage 120 Generator 130 Turbine 140 Compressed air flow passage 150 Compressed air discharge passage 160 Surge tank

Claims (3)

[Claims] 1. A seawater intake for taking in a seawater portion near a sea surface where a wave force is generated is provided in a lateral direction at a position substantially equal to the sea surface height of a coast or a structure on the sea, and The back portion of the intake is sealed by a first elastic rubber plate which stands substantially up and down, and a second elastic rubber plate is provided inside the structure behind the first rubber plate with a first elastic rubber plate. The second rubber plate and the first rubber plate are arranged side by side so as to be substantially parallel to the first rubber plate.
A peripheral side portion between the first rubber plate and the rubber plate is sealed by a side wall to form a first air chamber having a sealed structure between the first rubber plate and the second rubber plate, and a structure behind the second rubber plate. On the inside of the object, a second air chamber having a closed structure, one of which is surrounded by a second rubber plate, is formed, and the second rubber plate includes:
An air hole through which air flows from the second air chamber to the first air chamber is provided, and the second air chamber is connected to an outside air inflow path for flowing outside air from outside the structure into the second air chamber,
The outside air inflow passage is provided with a check valve for preventing the outside air flowing into the second air chamber from flowing back into the atmosphere outside the structure through the outside air inflow passage. A spiral tube formed by spirally winding a pipe, a generator, and a turbine for rotating the generator are provided near the outer end of the spiral tube and the first air chamber. While being connected by an outflow passage, the inner end of the spiral tube and the compressed air intake port of the turbine are connected by a compressed air flow passage, and the compressed air discharge port of the turbine is connected to the outside of the structure outside the structure through the compressed air discharge passage. A wave power generator characterized in that it is communicated with. 2. The air discharged from the first air chamber to the air outflow passage is temporarily stored in the air outflow passage, and the flow velocity of the air is leveled to a substantially uniform velocity, and the flow velocity is leveled. The wave power generator according to claim 1, further comprising a surge tank for allowing air to flow into an outer end of the spiral tube through an air outflow passage. 3. The seawater intake ceiling wall is formed higher than the sea level at high tide, and the seawater intake floor wall is formed lower than the sea level at low tide. 3. The wave power generator according to 1 or 2.