JP3515722B2 - Ocean Energy Utilizing Wave Energy - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the utilization of wave energy which is moored offshore or the like to convert the energy of waves or swells on the surface of the sea into air energy, and by utilizing this air energy. Marine power generation device.

[0002]

2. Description of the Related Art Conventionally, as a marine power generator having a function of utilizing this kind of wave energy, for example, the longitudinal direction of a structure is arranged in parallel with the direction in which the waves come to absorb the wave energy. There is a so-called attenuator type. However, in recent years, a terminator type has been proposed in which the longitudinal direction of the ocean floating structure is arranged so as to be orthogonal to the direction of the waves, and the energy of the waves can be more efficiently converted into air energy for power generation. .

A specific example of this terminator type is shown in FIG.
4 shows. An air piston chamber 01 whose lower surface is opened to the water is installed on the sea, a turbine 03 is provided at the upper end opening 02, and a generator 04 is driven by the rotation of the turbine 03. The power generation principle of this device is that the water level inside and outside the air piston chamber 01 causes a drop H due to waves,
The turbine 03 is driven by utilizing the fact that the atmospheric pressure inside and outside the air piston chamber 01 is different due to the drop H.

[0004]

However, in this terminator type, since the water level drop H between the inside and outside of the air piston chamber 01 occurs intermittently, the drive of the turbine 03 is also intermittent. That is, when the head H inside and outside the air piston chamber 01 becomes smaller, the air inside the air piston chamber 01 is compressed and flows from the upper end opening 02 toward the turbine 03 to drive the turbine 03. However, conversely, when the head H becomes small, the outside air flows into the air piston chamber 01, so the air in the air piston chamber 01 is not compressed and the air does not flow toward the turbine 03. As described above, in this terminator type, the drive of the turbine 03 is intermittent, so that it is not possible to expect the operation of power generation with a high operating rate.

In view of the above problems of the prior art, the present inventor has studied various means for fully utilizing the energy of waves. As a result, we noticed that there are mountains and valleys in the waves, and that the ocean levitation structure inclines to the front and the rear in the traveling direction of the waves by being swayed by the waves.
Then, they found that the turbine can be continuously driven as much as possible by making good use of the alternating natural phenomenon.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to continuously drive a turbine by taking advantage of the alternating inclination of an ocean floating structure due to waves or swells.

[0007]

According to a first aspect of the present invention, there is provided a wave energy-utilizing marine power generation apparatus in which a turbine chamber is provided in an upper portion of a central portion of a substantially enclosed space formed inside an ocean floating structure. , The generator linked to the turbine in the turbine chamber is arranged above the upper wall of the sealed space, and at least the liquid level in the sealed space is lower than the lower wall of the turbine chamber. Is filled with liquid, a plurality of air piston chambers are provided around this turbine chamber, and a partition wall that partitions each piston chamber is
By extending downward from the ceiling wall in this closed space beyond the liquid level, the spaces above the liquid level of these air piston chambers are communicated with each other only through this turbine chamber, and The ocean floating structure inclines and the liquid level rises and falls in each piston chamber, and the air in the piston chamber is compressed or decompressed, so that the air piston chamber on the compressed side is decompressed from the air piston chamber on the compressed side. It is characterized in that the compressed air flows into the turbine to continuously rotate the turbine in one direction at all times.

According to a second aspect of the present invention, there is provided a wave energy-utilizing marine power generator, which has a turbine chamber in which a turbine is laid horizontally at a central upper portion of a substantially enclosed space formed inside an ocean floating structure. A generator, which is arranged and interlocked with the turbine in the turbine chamber, is arranged above the upper wall of the closed space, and at least the liquid level is lower than the lower wall of the turbine chamber in the closed space. In this way, the liquid is filled, and the air piston chambers are arranged on both sides of this turbine chamber, and the partition wall that separates each piston chamber extends further below the ceiling wall in this closed space beyond the liquid level. By extending toward each other, the spaces above the liquid surface of each of these air piston chambers communicate with each other only through this turbine chamber, and the left and right air pistons are located above the air turbine chamber. Left and right compressed air flow path communicates the upper chamber is also provided a compressed air flow path to be communicated under side of the left and right air piston chamber downwards respectively, marine floating structure by waves inclined to the left and right The liquid moves up and down in the air piston chamber of, and the air in the air piston chamber is compressed or decompressed, and the compressed air passage is passed from the compressed air piston chamber to the decompressed air piston chamber. Compressed air flows alternately and the turbine
It is characterized by being continuously rotated in one direction at all times.

In the above structure, as described in claim 3, in the upper and lower compressed air flow paths, the side where the internal air is compressed in accordance with the compressed air alternately flowing into the left and right air pist chambers. Among the openings of the upper and lower flow paths facing the air piston chamber, the opening of the compressed air flow path on the side that allows the flow of compressed air that rotates the turbine in the one direction is opened, and conversely the compression that reversely rotates the turbine. The opening of the compressed air flow passage on the side allowing the inflow of air may be provided with an on-off valve for closing the opening.

Further, according to a fourth aspect of the present invention, the opening / closing valve is rotatably supported on the base end side so as to be vertically swingable from the upper and lower intermediate portions of the turbine chamber toward the left and right air piston chambers, respectively. One is supported by the float on the liquid surface, and the other is composed of a shield plate supported by a weight that also serves as a float to add weight to the buoyancy of the liquid surface.The shield plate on the float side is the liquid Due to the rise of the surface, the extended free end comes into contact with the ceiling wall of the ocean floating structure, and the shield plate on the side with the float and weight is raised to the lower level than the rising liquid level due to the rise of the liquid level. Can be configured to be located.

Further, as described in claim 5, the on-off valves are provided at the left and right openings of the upper and lower compressed air passages, respectively, with their upper ends pivotally supported so that they can swing. The on-off valve provided at the opening on the rear side in the rotational direction of the turbine is always forcibly closed both upstream and downstream in the flow direction of the compressed air, so that the air in the air piston chamber rises above a predetermined pressure. It can be configured to have a mechanical closing mechanism that is opened when the time comes.

According to a sixth aspect of the present invention, the mechanical closing mechanism includes an electromagnetic solenoid and a detection sensor for detecting that the air in the air piston chamber provided in each air piston chamber is compressed to a predetermined pressure or more. Based on compression detection information of air above a predetermined pressure in the air piston chamber by this detection sensor, the electromagnetic solenoid is operated to allow the on-off valve to swing, and conversely, based on the detection information of normal pressure, The electromagnetic solenoid may be operated to prevent the on-off valve from swinging.

According to a seventh aspect of the present invention, the bottom wall of the marine levitation structure is formed in a ship bottom shape with a sectional shape at least along the axial direction of the rotating shaft of the turbine. You can also

Further, according to the present invention, as described in claim 8,
The marine levitation structure is formed in a circular shape in a plan view, and a turbine room provided with a turbine installed with its axis of rotation in the vertical direction is provided above the center of the substantially enclosed space inside the turbine room. The generator linked to the turbine is installed above the upper wall of the sealed space, and the sealed space is filled with the liquid so that at least the liquid level is lower than the lower wall of the turbine chamber. A plurality of air piston chambers are provided around the turbine chamber, and a partition wall for partitioning the piston chambers extends downward from the ceiling wall in the closed space beyond the liquid level. As a result, the spaces above the liquid surface of each air piston chamber communicate with each other only through this turbine chamber, and the rotation direction of the turbine is determined by the opening of each air piston chamber facing the turbine chamber. The partition wall on the flow side is provided with a compressed air downflow guide that guides the compressed air in the rotational direction of the turbine.The waves cause the ocean levitation structure to incline, causing the liquid level to rise and fall in each piston chamber. By the operation of being compressed or decompressed, compressed air flows from the compressed air piston chamber to the decompressed air piston chamber, and the turbine is always continuously rotated in one direction. To do.

In the above structure, it is desirable that the bottom wall is formed in a bowl shape in which the central portion is at the lowest position and the peripheral portion is at the upper position.

Further, the generator has both a rotary shaft arranged in the horizontal direction and a rotary cylinder shaft externally fitted to the rotary shaft.
Turbine support shafts are interlocked and coupled so as to rotate in opposite directions, and windings are provided on one side and field magnets are provided on the other at mutually opposing portions of the rotating shaft and the rotating cylinder shaft. It is desirable that

[0017]

According to the wave energy utilizing marine levitation structure of the first aspect of the present invention,
The liquid filled in the closed space works so as to compress the air in the upper space on the inclined side, that is, the air in the air piston chamber, and vice versa. And the inclination of this ocean levitation structure is when it is lifted to the top of the wave,
It continuously repeats when it sinks into the wave trough, so that the air in the compressed air piston chamber flows into the depressurized air piston chamber side. This flow of air is repeated reciprocally and continuously. This continuous flow of air forces the turbine to rotate continuously in one direction at all times, and the continuous rotation of the turbine operates the generator.

Further, according to the wave energy utilizing marine levitation structure according to the second aspect of the present invention, the sealed space of the marine levitation structure is divided into left and right, and an air piston chamber is formed in each. Therefore, the left and right air piston chambers should be oriented so that they line up in the traveling direction of the wave.
By levitating the offshore levitating structure above the sea, the wave energy can be efficiently applied to the inclination of the offshore levitating structure. As a result, the continuous rotation of the turbine works more smoothly. Also, the flow of compressed air between the left and right air piston chambers should pass from one air piston chamber through one compressed air flow path, and from the other air piston chamber through the other compressed air flow path. As a result, the turbine is rotated, and the turbine always works so as to be continuously rotated in one direction.

As the compressed air alternately flows into the left and right air pist chambers, the turbine is moved in the one direction in each of the upper and lower flow passage openings facing the air piston chamber on the side where the internal air is compressed. The opening of the compressed air passage on the side that allows the flow of compressed air to rotate is opened, and conversely the opening of the compressed air passage that allows the flow of compressed air to rotate the turbine in the opposite direction is closed. The structure provided in the air flow passage is such that this on-off valve allows the flow of compressed air to flow from the air piston chamber into the compressed air flow passage with a slight time lag from the beginning of the inclination of the marine levitation structure. work. As a result, it works so as to give momentum to the flow of compressed air.

In the above structure, the shielding plate employed as a means for constantly rotating the turbine in one direction causes the liquid filled on the inclined side to flow when the ocean floating structure inclines to one side, and this inclination The liquid surface on the side of the air piston that rises raises the float, and as a result, one shield plate is swung upward, and its extended free end abuts the ceiling wall of the ocean floating structure. The opening of the compressed air flow passage is blocked so that the compressed air does not flow into the compressed air flow passage on the side where the turbine rotates in the reverse direction. Further, since the liquid surface of the air piston chamber on the other side descends, the buoyant force with respect to the float / combined weight is reduced, and finally, it is completely separated from the liquid surface upward, and the weight balance with the shielding plate is lost, The shield plate is lifted upward, and finally the extended free end of the shield plate comes into contact with the ceiling wall to shield the opening of the compressed air flow passage on the side for reversing the turbine. On the contrary, when the ocean floating structure tilts to the other side, the liquid filled on the tilted side flows, the liquid level on the air piston chamber side on this tilted side rises, the float combined weight rises, and the The opening of the compressed air passage is blocked so that the plate descends and the extended free end sinks below the liquid surface to prevent the compressed air from flowing into the compressed air passage on the side where the turbine rotates in the reverse direction. To do. Further, since the liquid surface of the air piston chamber on one side descends, the float descends as the liquid surface descends, and one shield plate also descends.

Further, in the above construction, the on-off valve employed as a means for constantly rotating the turbine in one direction is
When the ocean levitation structure tilts to one side, the filled liquid flows to the tilted side, the liquid level on the tilted side of the air piston chamber rises, and the air in this one air piston chamber is compressed. The internal pressure increases. Based on the detection result of the increase in the internal pressure, the closing operation of the mechanical closing mechanism for the opening / closing valve provided at the opening on the rear side in the turbine rotation direction of one of the compressed air flow paths is released, and the opening / closing valve swings. The compressed air flows from one side to the other air piston chamber through the one compressed air flow path. At this time, the on-off valve on the other side of the other compressed air flow path on the rear side in the turbine rotation direction maintains its closed posture, and prevents the compressed air from flowing into the compressed air flow path on the side that reverses the turbine. On the contrary, if the offshore levitating structure tilts to the other side,
The filled liquid flows to the inclined side, the liquid surface on the side of the air piston chamber on the inclined side rises, the air in the other air piston chamber is compressed, and the internal pressure increases. Based on the detection result of this increase in internal pressure, the closing operation of the mechanical closing mechanism for the opening / closing valve provided at the opening on the rear side in the turbine rotation direction of the other compressed air flow path is released, and the opening / closing valve swings. The compressed air flows from the other into the one air piston chamber through the other compressed air flow path. At this time, the on-off valve on the rear side of the one compressed air flow passage in the turbine rotation direction maintains its closed posture, and prevents the compressed air from flowing into the compressed air flow passage on the side that reverses the turbine.

As a mechanical closing mechanism, an electromagnetic solenoid and a detection sensor for detecting that the air in the air piston chamber provided in each air piston chamber is compressed to a predetermined pressure or more are used in the construction. The electromagnetic solenoid is activated based on the compression detection information of air above the predetermined pressure in the air piston chamber to allow the on-off valve to swing, and conversely, the electromagnetic solenoid is activated based on the normal pressure detection information to open and close. Prevents valve swing.

When the bottom wall of the ocean levitation structure has a cross-sectional shape at least along the axial direction of the rotation axis of the turbine and has a ship bottom shape, the wave energy is more likely to be inclined by the ocean levitation structure. .

Further, the ocean floating structure is formed in a circular shape in a plan view, and a turbine chamber is provided at the upper center of the enclosed space.
A plurality of independent air piston chambers are arranged around the turbine chamber, the air piston chambers are communicated with each other only through the turbine chamber, and the air piston chamber has an opening portion facing the turbine chamber. 9. The wave energy utilizing marine levitation structure according to the invention as set forth in claim 8, wherein the partition wall on the upstream side in the turbine rotation direction is provided with a guide guide for guiding the compressed air in the turbine rotation direction. Play. That is, when the ocean levitation structure is tilted by the waves, the filled liquid flows to the tilted side, the liquid level of some of the air piston chambers on this tilted side rises, and the tilted side of this tilted side The air in some air piston chambers is compressed and the internal pressure increases. The compressed air thus obtained flows into the turbine chamber while being directed to rotate the turbine in one direction by the guide guides of some of the air piston chambers on these inclined sides, so that the turbine moves in one direction. While rotating to, some of the other liquid surface drops and flows into the air piston chamber on the side where the internal pressure is decreasing. On the contrary, when the ocean levitation structure tilts to the other side, the filled liquid flows to the tilted side,
The liquid level on the side of some of the air piston chambers on the inclined side rises, and the air in the other of the other air piston chambers is compressed to increase the internal pressure. The compressed air thus obtained flows into the turbine chamber while being directed to rotate the turbine in one direction by the guide guides of some of the air piston chambers on these inclined sides, so that the turbine moves in one direction. While rotating to, some of the other liquid surface drops and flows into the air piston chamber on the side where the internal pressure is decreasing. By arranging the air piston chamber around the entire circumference of the turbine chamber, no matter which direction the marine floating structure inclines, the air piston chamber in which the internal pressure increases is always exposed.

In the invention according to claim 8, when the bottom wall is formed in a bowl shape in which the central portion is at the lowest position and the peripheral portion is at the upper position, the ocean floating structure is inclined. Make wave energy more effectively act on this ocean levitation structure.

Further, in the inventions of claims 1 and 2,
According to the tenth aspect of the invention, the configuration in which the rotating shaft of the generator and the rotating cylindrical shaft externally fitted to the generator are relatively rotated in the opposite direction can rotate the winding and the field magnet in opposite directions.

[0027]

As described above, according to the wave energy utilizing marine power generation apparatus of the first aspect of the present invention, the liquid filled in the closed space is inclined to the inclined side by receiving the wave and inclining. The action of flowing and compressing the air in the air piston chamber on the inclined side and conversely depressurizing the air piston chamber on the opposite side is continuously repeated. Therefore, the air flow between the air piston chamber on the compressed side and the air piston chamber on the depressurized side repeats forward and backward and continuously. This series of air flow forces the turbine to rotate continuously in one direction at all times as much as possible, and the continuous rotation of the turbine operates the generator, thus significantly increasing power generation efficiency. You can

According to the wave energy utilizing marine power generator of the second aspect of the present invention, by providing the air piston chambers on the left and right, the left and right air piston chambers are arranged side by side in the traveling direction of the wave. If the object is levitated above the sea, the wave energy can be efficiently applied to the inclination of the ocean floating structure, and the continuous rotation of the turbine can be further smoothly performed. The flow of compressed air between the left and right air piston chambers passes from one air piston chamber through one compressed air flow path, and from the other air piston chamber through the other compressed air flow path. As a result, the turbine is rotated, and the turbine is always continuously rotated in one direction, so that the power generation efficiency of the generator can be significantly improved.

By providing an opening / closing valve in the upper and lower compressed air passages (claim 3), the compressed air can be effectively guided to the compressed air passage for rotating the turbine in only one direction, and the rotational efficiency of the turbine is hindered. Without this, efficient power generation can be enabled. In addition, the compressed air flow acts to flow from the air piston chamber into the compressed air flow path with a slight time lag from the start of the inclination of the marine levitation structure, which gives the compressed air flow momentum. it can. As a result, the rotation of the turbine can be smoothly started and can be given momentum, which contributes to the improvement of power generation efficiency.

The shield plates arranged in the left and right air piston chambers prevent the compressed air from flowing into the compressed air flow passage on the side in which the turbine rotates in the reverse direction in accordance with the inclination of the marine floating structure. Since it is configured to block the opening of the flow path (claim 4), the compressed air can be well guided to the compressed air flow path, which rotates the turbine in only one direction. As a result, efficient power generation can be achieved without impeding the rotational efficiency of the turbine. In addition, since the shielding operation of the opening of the compressed air flow path by this shielding plate is performed by the vertical movement based on the vertical movement of the liquid level of the float,
In other words, since natural energy is used, it can be constructed at a low cost, and the occurrence of breakdowns is much less, and it can withstand long-term use.

When the pressure in the air piston chamber exceeds a predetermined value, the closing operation of the mechanical closing mechanism is released, the on-off valve is operated, and the opening of the compressed air passage is opened ( According to claim 5), the compressed air can flow down to the flow path after waiting for the internal pressure to rise sufficiently, the rotational speed of the turbine can be made as high as possible, and the power generation efficiency can be improved.

By constructing the mechanical closing mechanism by an electromagnetic solenoid and a detection sensor for detecting that the air in the air piston chamber is compressed to a predetermined pressure or more (claim 6), the pressure in the air piston chamber can be reduced. The increase / decrease is detected and the opening of the compressed air flow passage on the side that rotates the turbine in one direction is opened and closed accurately, and at the same time compressed air can flow down to the flow passage after waiting for a sufficient increase in internal pressure. The rotation speed can be made as high as possible, which can contribute to the improvement of power generation efficiency.

Since the lower wall of the marine levitation structure is formed in a ship bottom shape with a sectional shape at least along the axial direction of the rotating shaft of the turbine (claim 7), the ocean levitation structure is formed by the energy of the waves. The object is easily tilted, and the wave energy can be effectively converted into the force that tilts the ocean floating structure, which can contribute to the further improvement of the power generation efficiency.

By arranging the air piston chamber around the entire circumference of the turbine chamber (claim 8), no matter which direction the marine levitation structure is inclined, the air piston chamber in which the internal pressure is always increased appears. Therefore, the continuous rotation of the turbine can be performed more efficiently.

By forming the bottom wall of the ocean levitation structure in the shape of a bowl (Claim 9), wave energy can be effectively applied to the inclination of the ocean levitation structure.
It can contribute to further improvement of power generation efficiency.

Since the rotating shaft of the generator and the rotating cylindrical shaft externally fitted to the generator are relatively rotated in the opposite directions, the winding and the field magnet can be rotated in the opposite directions. The efficiency can be significantly increased.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) The first embodiment of the present invention will be described in detail below. FIG. 1 is a cross-sectional view showing the overall configuration of a wave energy utilizing power generator according to the present invention, and FIG. 2 is an enlarged cross-sectional view of the main part thereof. In these drawings, reference numeral 1 denotes an offshore floating structure which is formed in a vertically long shape (long in the depth direction in the drawing) and has a rectangular cross section as shown in the drawing. It is configured. The ceiling wall 3 is formed at the middle portion between the left and right of this closed space 2.
On the side, a turbine chamber 5 in which a turbine 4 is horizontally installed is arranged inside. The support shaft 6 of the turbine 4 is arranged along the longitudinal direction of the ocean floating structure 1. This turbine room 5
Due to the provision of, the air piston chambers 7 are formed on the left and right sides of the turbine chamber 5 in the closed space 2. Then, the deck 8 of this offshore floating structure 1
In this manner, a power generation chamber 9 is provided above the turbine chamber 5, a power generator 10 is provided inside, and power generation is performed by rotation of the turbine 4. 11 in the figure
Is a rotary electric tool such as an endless chain that interlocks and connects the support shaft 6 of the turbine 4 and the rotation shaft (not shown) of the generator 10. As shown in the drawing, the belt wrapping tool (not shown) on the turbine 4 side can be increased in diameter to significantly increase the rotational speed of the turbine.

The air piston chamber 7 is filled with the liquid 13 so as to be at least lower than the lower wall 12 of the turbine chamber 5. Further, from the right and left intermediate portions of the lower wall 12 of the turbine chamber 5, the liquid level W. A partition wall 14 is extended beyond L and toward the bottom wall 15 side of the ocean floating structure 1, and at least the turbine chamber lower wall 1 is provided.
2 and the liquid level W. At the air existing portion on L, the left and right air piston chambers 7 are isolated. Therefore, this partition wall 14
Between the bottom wall 15 and the bottom wall 15, the liquid 13 filled in the left and right air piston chambers 7 can freely move back and forth.

An upper compressed air passage 16 is provided at a position at least above the turbine support shaft 6 in the turbine chamber 5 so that the left and right air piston chambers 7 communicate with each other. Similarly, a lower compressed air flow path 17 is provided at a position in the turbine chamber 5 at least below the turbine support shaft 6 so that the lower parts of the left and right air piston chambers 7 communicate with each other.

From the upper and lower intermediate portions of the turbine chamber 5, that is, from the structure 18 between the upper compressed air flow passage 16 and the lower compressed air flow passage 17, toward the left and right air piston chambers 7,
A louver-shaped shield plate 19 is extended. This shield 19
Has a base end pivotally supported by the structure 18 so as to be vertically swingable, and reversibly blocks the inflow of air into the compressed air flow paths 16 and 17. The extension length of this ocean floating structure 1
It is desirable to be as close as possible to the opposing side wall 20 of.
A float 21 is fixedly connected via a support arm 22 to the lower side of the free end of one of the left and right shield plates 19A (left side in the illustrated example), and is constantly supported by the float 21 on the liquid surface. ing. On the other hand, the other end 19B has one end of a wire 24 wound around a plurality of pulleys 23 provided on the ceiling wall 3 connected to the upper side of the intermediate portion thereof. A weight 25 is hung and connected to the other end. This weight 25 has its own weight, and the weight of the other weight is 25
In the state of being floated on the liquid surface, the buoyancy acts so as to balance with the weight of the other shield plate 19B, and serves as both weight and float. With such a configuration, in the non-acting state shown in FIG.
Both are kept in a substantially horizontal position.

Of the left and right side walls of the marine levitation structure 1, one (the right side in the drawing) has an outer surface along the longitudinal direction of the marine levitation structure 1 at predetermined vertical intervals. Further, a plurality of wave receivers 26 (six in the illustrated example) are provided which are opened and which are projected outward. This is because the energy of the waves, that is, the pushing force of the waves coming from the right side, is exerted more reliably on the marine levitation structure 1.

Next, the operation of the wave energy utilizing marine power generation apparatus shown in the first embodiment will be described. As shown in Fig. 3, first, the waves come in from the right,
The offshore levitation structure 1 is lifted from the valley to the top. Then, the wave receiver 26 effectively causes the energy of the wave to act on the marine levitation structure 1, and the marine levitation structure 1 is greatly inclined with the left side at the lower side and the right side at the upper side. Due to this inclination, the internal liquid 13 flows through the liquid communication passage 27 between the lower end of the intermediate partition wall 14 and the bottom wall 15 to the left air piston chamber 7 side so as to compress the internal air. To work. On the contrary, on the right side of the air piston chamber 7, the liquid level is lowered and the internal pressure is lowered.

On the other hand, the shield plate 19A on the left side of the air piston chamber 7 among the shield plates 19 is lifted upward by the buoyancy of the float 21 as the liquid 13 rises.
As a result, the extended free end side is lifted upward to the ceiling wall 3 side, and finally is brought into contact with the ceiling wall 3 to compress the internal air of the upper compressed air flow path 16 (left side).
The opening 16B (outlet) facing the air piston chamber 7 is closed. Due to the closing action of the opening 16B by the shielding plate 19A, the compressed air cannot flow into the upper compressed air flow passage 16 but exclusively into the lower compressed air flow passage 17 and faces the air piston chamber 7 on the right side thereof. It flows out from the opening 17B (outlet) to the air piston chamber 7 on the right side, and the turbine 4
Is rotated counterclockwise in the figure.

Further, as the liquid level on the left side of the air piston chamber 7 lowers, the buoyancy against the weight 25 that also serves as a float disappears, and the weight 25 lowers due to its own weight. By this descent operation of the weight 25, the extended free end of the other shield plate 19B is pulled up to the ceiling wall 3 side via the wire 24, and finally comes into contact with the ceiling wall 3. As a result, the opening 16A (inlet) facing the air piston chamber 7 on the side (right side) of the upper compressed air flow path 16 where the pressure of the internal air has dropped is closed by the other shield plate 19B. The opening 16A formed by the other shield plate 19B
Also, the closing action of the above effectively prevents the compressed air from flowing into the upper compressed air flow path 16.

Continuing on, when the ocean levitation structure 1 is dropped from the crest to the valley, the right side of the ocean levitation structure 1 is lower and the left side is higher. Incline. Due to this inclination, the internal liquid 13 flows to the right side air piston chamber 7 side through the liquid communication passage 27, and acts to compress the internal air. On the contrary, the air in the left air piston chamber 7 is decompressed.

On the other hand, in the shield plate 19B on the right side of the air piston chamber 7 of the shield plate 19, the weight 25 which also serves as a float is lifted upward by the rise of the liquid 13.
Along with this, the extended free end side descends downward and finally sinks below the liquid surface. The lower compressed air flow path 17 is caused by the subsidence of the extended free end of the other shield plate 19B below the liquid surface.
The opening 17B facing the air piston chamber 7 on the side where the internal air is compressed (right side) is closed. Due to the closing action of the opening 17B by the other shield plate 19B, the compressed air cannot flow into the lower compressed air flow passage 17 but exclusively into the upper compressed air flow passage 16 and the air piston chamber 7 on the left side thereof. From the opening 16B (outlet) facing the air piston chamber 7 on the left side to rotate the turbine 4 counterclockwise in the figure.

Further, as the liquid level on the air piston chamber 7 side on the left side descends, the float 21 descends sequentially. By this descent operation of the float 21, the shield plate 1 on one side is
The extension free end of 9A is pulled down via the wire 24, and the opening 16 facing the air piston chamber 7 on the side of the upper compressed air flow passage 16 where the pressure of the internal air is reduced.
B is greatly opened.

As described above, the ocean levitation structure 1 is alternately inclined left and right by the repeated push and pull of the waves, and the turbine 4 is continuously rotated in one direction as much as possible, so that power generation efficiency is maximized. Increase.

(Second Embodiment) The ocean floating structure 1 shown in the first embodiment has a rectangular cross section,
Although the bottom wall 15 is shown as an example in which the bottom wall 15 is configured by a horizontal surface, in this example, the bottom wall 15 is formed in the shape of a ship bottom and is more likely to receive wave energy, that is, more inclined. Then, it is devised to make the left and right movement of the liquid more active. This ship-bottom shape is appropriately applied to an ocean floating structure shown in a third embodiment described later.

(Third Embodiment) Next, FIGS.
Shows a third embodiment of the present invention. In the third embodiment, the shield plate 19 shown in the first embodiment is used.
However, while the structure is such that the openings 16B, 17A, 17B of the upper and lower compressed air flow paths 16, 17 are closed by the pure rise and fall of the liquid level, the rise and fall of the liquid level are detected by various sensors. Then, based on this detection result, the openings 16A, 16B, 17A, 17B of the upper and lower compressed air flow paths 16, 17 are formed.
Is opened or closed, and its purpose is to further improve the rotation efficiency of the turbine 4. The specific structure is as follows. In the detailed description of the structure, the same components as those described in the first and second embodiments are the same as those used in the first and second embodiments. The reference numerals are given and the details thereof are omitted.

As shown in FIG. 8, openings 16A, 16B, 17A and 17B facing the left and right air piston chambers 7 of the upper and lower compressed air flow paths 16 and 17 respectively have upper edges. An opening / closing valve 28 is provided which is swingable in the left-right direction on a horizontal axis (not shown) and closes these openings. A regulation piece 29 for preventing the rocking of the on-off valve 28 from the front and rear of the rocking direction is in contact with the lower edge of the on-off valve 28, and normally the rocking of the on-off valve 28 is blocked while keeping airtightness. ing.

These restriction pieces 29 are provided for each compressed air flow path 1
6 and 17, which are connected to a rod (not shown) of an electromagnetic solenoid 31 provided outside the lower side wall 30,
By the operation of the electromagnetic solenoid 31, the compressed air flow paths 16 and 17 can be moved in and out. Therefore, when the restricting piece 29 retreats from the compressed air flow paths 16 and 17, the rocking prevention action on these on-off valves 28 is released, and each on-off valve 28 is caused by the flow pressure of compressed air and its own weight. It is configured so that it can freely swing as the ocean floating structure 1 tilts.

Further, these electromagnetic solenoids 31 are one of the means for detecting the compression of the internal air, which is provided on the ceiling wall 3 of at least one of the air piston chambers 7 (on the left side in the figure). It is linked with the liquid level detection sensor 32. That is, the liquid level detection sensor 32 causes the liquid level W. By detecting the rise and fall of a predetermined amount of L, whether or not the air in the air piston chamber 7 is compressed as a result,
That is, it is detected whether or not the internal pressure is increasing. Then, the electromagnetic solenoid 31 is configured to operate based on the output of the detection information of the change in the liquid level by the liquid level detection sensor 32.

Electromagnetic solenoid 31 and liquid level detection sensor 32
The interlocking relationship of is configured as follows. The information detected by the liquid level detection sensor 32 that the liquid level in one of the air piston chambers 7 has risen by a predetermined amount or more is the opening 1 facing one of the lower compressed air flow paths 17 and the other air piston chamber 7.
It is linked to the opening operation of the electromagnetic solenoid 31 that regulates the opening and closing of the on-off valves 28A and 28B of 7A and 17B. On the contrary, the detection information that the liquid level in one of the air piston chambers 7 has dropped by a predetermined amount or less is used as the opening / closing valve 28C of the openings 16A and 16B facing the other of the upper compressed air passage 16 and the one air piston chamber 7. , Electromagnetic solenoid 3 that regulates the opening and closing of 28D
It is configured to be associated with one opening operation.

The liquid level detection sensor 32 is a Breton tube type pressure sensor, a bellows type pressure sensor, a diaphragm type differential pressure sensor, which is a pressure / differential pressure sensor that substantially detects a pressure change in the air piston chamber 7. In addition to adopting a pressure sensor, an attitude inclination sensor, such as a potentiometer type or torque balance type, which detects the inclination of the marine levitation structure 1 and indirectly detects the rise and fall of the internal pressure of the air piston chamber 7 Various tilt sensors can be adopted.

In the third embodiment, a solar cell (not shown) arranged on the deck 8 or the like is used as an energy source for operating the electromagnetic solenoid 31 and the liquid level detection sensor 32. Can be adopted.

Next, the operation of the third embodiment will be described. In the pre-operation posture shown in FIG. 7 or 8, when the waves come from the right side of the figure, the marine levitation structure 1
Tilts with the left side down and the right side up, as shown in FIG. Due to this inclination, the liquid 12 flows from the right air piston chamber 7 to the left air piston chamber 7 side via the liquid communication passage 27, and the liquid level on the left air piston chamber 7 side rises. As a result, the air in the left air piston chamber 7 is compressed. On the other hand, the liquid level detection sensor 3
2 detects this rise of the liquid level, transmits this detection information to each electromagnetic solenoid 31 of the lower compressed air flow path 17, and operates this electromagnetic solenoid 31 so as to open the opening / closing valves 28A and 28B. Conversely, this detection information is
For each electromagnetic solenoid of the upper compressed air flow path 16,
This is transmitted as a signal to deactivate it, and the on-off valves 28C and 28D of the upper compressed air flow path 16 continue to maintain the posture in which the flow path openings 16A and 16B are closed.

Therefore, the compressed air in the left air piston chamber 7 vigorously flows into the lower compressed air passage 17 through the opening 17A facing the left air piston chamber 7 in the lower compressed air passage 17, and the turbine is compressed. An opening 1 facing the air piston chamber 7 on the right side while rotating 4 in the counterclockwise direction in the figure.
7B into the air compression piston chamber 7 on the left side.

Subsequently, as shown in FIG. 10, the marine levitation structure 1 goes to the valley from the crest of the wave, so that it takes an inclined posture of descending to the right. However, in the process from the downward-sloping tilted posture shown in FIG. 9 to the downward-sloping tilted posture shown in FIG.
There are times when the height of the liquid level becomes substantially the same level in the left and right air piston chambers 7. That is, there is a time when the pressures in the left and right air piston chambers 7 are balanced. The liquid level detection sensor 32 detects that the liquid levels of the left and right air piston chambers 7 are at the same horizontal level, and the detection information is output to the electromagnetic solenoid 31. With this output, the operation of the electromagnetic solenoid 31 is restored, that is, the electromagnetic solenoid 31 is operated so as to project upward from the lower side wall 30 of the lower compressed air flow path 17. Since the open / close valves 28A and 28B facing the openings 17A and 17B of the downward compressed air flow path are temporarily in a drooping posture because the ocean floating structure 1 is in a horizontal posture, their swinging motion is restricted by the restricting piece 29. Well blocked, lower compressed air flow path 1
The left and right openings 17A and 17B of 7 are airtightly closed.

Then, when the marine levitation structure 1 is inclined downward to the right as shown in FIG. 10, the liquid level in the air piston chamber 7 on the right side rises. This rise of the liquid level is detected by the liquid level detection sensor 31, and the detection information is used as the upper compressed air flow path 1
It is output to the electromagnetic solenoid 31 provided in the No. 6.
Upon receipt of this output, these electromagnetic solenoids 31 operate so as to retract downward from the lower side wall 30, and the open / close valves 28 provided in the left and right openings of the upper compressed air flow passage 16 are operated.
The occluding action postures of C and 28D thus far are released, and the swinging action is allowed. As a result, the compressed air in the air piston chamber 7 on the right side vigorously flows into the upper compressed air flow path 17 and faces the air piston chamber 7 on the left side while rotating the turbine 4 counterclockwise in the drawing. It flows into the air compression piston chamber 7 on the left side from the opening 16B.

As described above, the ocean levitation structure 1 is alternately inclined left and right by the repeated pushing and pulling of the waves, and the turbine 4 is continuously rotated in one direction as much as possible, so that the power generation efficiency is maximized. Increase.

(Fourth Embodiment) Next, referring to FIG. 11 and FIG.
The configuration shown in (1) shows another embodiment in which the shape of the ocean floating structure is further changed. The turbine 4 is allowed to rotate continuously while improving the power generation efficiency while adapting well to the direction in which the waves flow.

Specifically, the ocean floating structure 101 is characterized in that it has a circular frame in plan view and that the bottom wall 115 is formed in a partial arc shape, that is, in a bowl shape. . Therefore, the bowl bottom works well regardless of the direction of the rushing waves, and the ocean levitation structure 1
01 can be tilted in any direction of 360 degrees.

In this ocean floating structure 101, a vertical type turbine 10 is provided with a supporting shaft 106 along its length in the center thereof.
A turbine chamber 105 in which the No. 4 is arranged is provided. Further, a generator 109 is provided in the central portion on the deck 108 of the ocean floating structure 101, and its rotation axis (not shown)
Is directly connected to the support shaft 106 of the turbine 104.

Around the central turbine chamber 105,
A plurality of circular enclosed spaces 102 in this ocean floating structure 101 are divided evenly in the circumferential direction (eight in the illustrated example).
The air piston chamber 107 is formed. Each air piston chamber 107 is connected to the closed space 102 from the ceiling wall 103.
Level W. of the liquid 113 filled in. The partition walls 114 extend beyond L to the bottom wall 115 side and are partitioned in a hermetically sealed manner, but are communicated with each other only via the turbine chamber 105. Further, the lower ends 114A of the respective partition walls 114 are arranged on the bottom wall 115 with a small space provided therebetween, and a liquid communication passage 127 is formed between the bottom wall 115 and the lower ends 114A of the respective partition walls 114, and 113 is configured to freely flow between the air piston chambers 107.

The edge 114B of each partition wall 114 facing the turbine chamber 107 is curved downstream of the turbine 104 in the rotational direction, and the compressed air in the air piston chamber 107 is guided toward the rotational direction of the turbine 104. Is configured to.

Therefore, when the ocean levitation structure 101 shown in FIG. 11 is horizontal and the waves W rush from the right side of the figure to try to lift the ocean levitation structure 101 from the valley to the top, The wave energy works effectively, and it greatly leans to the left. Due to this inclination, the internal liquid 113 flows to the left side via the liquid communication path 127 between the lower end of the partition wall 114 and the side wall 115, and compresses the internal air of the air piston chambers 107 located on the left side. To work. On the contrary, in some of the air piston chambers 107 on the right side, the liquid level is lowered and the internal pressure thereof is lowered.

As a result, the left several air pistons 1
The air in 07 is the air piston chamber 107 on the right side.
And flows down through the central turbine chamber 105. At this time, some of the left air piston chambers 1
The air inside 07 is the edge 11 formed on the partition wall 114.
At 4B, it is forcibly guided to the rotation direction side of the turbine 104, and works to rotate the turbine 104 in one direction well.

Next, the offshore floating structure 101 is shown in FIG.
When the center of the wave is overcome and tilted downward to the right, this tilt causes the internal liquid 113 to flow to the right through the liquid communication passage 127 between the lower end of the partition wall 114 and the side wall 115, and to the right. It acts to compress the air inside several air piston chambers 107. On the contrary, in some of the left air piston chambers 107, the liquid level is lowered and the internal pressure thereof is lowered.

As a result, the compressed air in the right air piston chambers 107 flows down toward the left air piston chambers 107 via the central turbine chamber 105. At this time, the air in the air piston chambers 107 on the right side is forcibly guided to the rotation direction side of the turbine 104 by the edge 114B formed in the partition wall 114, and the turbine 104 is well unidirectionally moved. Work to rotate to.

As described above, the ocean floating structure 1 is alternately inclined left and right by the repeated push and pull of the waves, the turbine 104 continuously rotates in one direction as much as possible, and the power generation efficiency is maximized. Increase.

In FIG. 11, reference numeral 134 is a vertical wind turbine,
The rotating shaft 135 is interlockingly connected to the rotating shaft (not shown) of the generator 109 via a gear case 136 with a built-in clutch, and the rotational energy of the wind turbine 134 is transmitted to the generator 109 and can be used as a wind power generator. Is configured.

(Fifth Embodiment) Next, the structure shown in FIG. 13 shows still another embodiment of the wave energy utilizing marine power generation apparatus of the present invention, in which the power generation efficiency of the generator is maximized. It is characterized in that it has been devised so that it can be increased. In particular, this embodiment is most preferably adopted in the embodiment including the horizontal shaft turbine shown in FIGS. 1 to 10, and its specific configuration is as follows.

On the deck 208 of the ocean floating structure 201,
The generator 209 is arranged with the rotating shaft 234 in a horizontal lying posture parallel to the support shaft 206 of the turbine 204. A winding 235 is integrally provided on the rotary shaft 234 of the generator 209. Further, a cylindrical frame 237, which is an example of a rotary cylinder shaft having a field magnet (magnet) 236 formed of a permanent magnet on its inner surface, is arranged so as to cover the winding 235 and The field magnets 236 are configured to generate power by rotating in opposite directions.

The left and right ends of the rotary shaft 234 are bearing members 2
It is supported by 38. Further, pipe-shaped support shafts 239 are integrally projectingly provided from both left and right ends of the tubular frame 237, and both ends thereof are the bearing members 2 of the rotary shaft 234.
It is supported by another bearing member 240 arranged inside 38. Therefore, the rotary shaft 234 penetrates the inside of the pipe-shaped support shaft 239, projects the shaft ends outward from both ends thereof, and is supported by the bearing members 238, respectively.

Further, the rotary shaft 234 and the pipe-shaped support shaft 23
9 are interlockingly connected to a support shaft 206 of the turbine 204 via a belt-shaped transmission 241.
The rotational energy of No. 4 is transmitted to the rotary shaft 234 and the pipe-shaped support shaft 239. The rotating shaft 234 side is provided with a rotating drum 242 provided on the rotating shaft 234 and a rotating drum 2 provided on the support shaft 206 of the turbine 204.
An endless belt 241 which is an example of a rotary transmission is stretched over 43 to be rotated forward. On the other hand, the tubular support shaft 2 of the tubular frame 237
Also on the 39 side, the endless belt 24, which is an example of a rotary transmission, extends over the rotary drum 244 provided on the 39 side and the rotary drum 245 provided on the support shaft 206 of the turbine 204.
1 is bridged in a figure 8 shape, and is configured to be rotatable in the opposite direction with respect to the rotary shaft 234.

Therefore, in the fifth embodiment,
The rotating shaft 234 having the winding wire 235 and the cylindrical frame 237 having the field magnet 236 can be rotated in opposite directions to each other, and the power generation efficiency of the generator 210 can be dramatically improved. Further, by adopting the belt-shaped transmission, the rotational energy of the support shaft 206 from the support shaft 206 of the turbine 204 to the rotation shaft 234 of the generator 209 and further to the pipe-shaped support shaft 239 can be transmitted with little loss. Energy loss can be significantly suppressed as compared with, for example, a gear transmission or other means.

In each of the above-mentioned embodiments, the ocean floating structures 1, 101, 201 are appropriately moored to the sea floor or the like via mooring tools (not shown).

[Brief description of drawings]

FIG. 1 is an overall sectional view showing a first embodiment of a wave energy utilizing marine power generator according to the present invention.

FIG. 2 is an enlarged plan view of an essential part taken along line AA in FIG.

FIG. 3 is a partially cutaway enlarged sectional view of a main part viewed from the same direction as the entire sectional view shown in FIG.

FIG. 4 is an explanatory view of the operation of the first embodiment shown in FIG.

FIG. 5 is an explanatory view of the operation of the first embodiment shown in FIG.

FIG. 6 is an overall sectional view showing a second embodiment of a wave energy utilizing marine power generation apparatus according to the present invention.

FIG. 7 is an overall sectional view showing a third embodiment of a wave energy utilizing marine power generation apparatus according to the present invention.

8 is an enlarged cross-sectional view of a main part with a part cut away as viewed from the same direction as the entire cross-sectional view shown in FIG. 7.

FIG. 9 is an explanatory view of the operation of the third embodiment shown in FIG.

FIG. 10 is an explanatory view of the operation of the third embodiment shown in FIG.

FIG. 11 is an overall sectional view showing a fourth embodiment of a wave energy utilizing marine power generation device according to the present invention.

12 is a plan view taken along the line AA in FIG.

FIG. 13 is an enlarged explanatory view of the essential parts showing the fifth embodiment of the wave energy utilizing marine power generation device according to the present invention.

FIG. 14 is an explanatory diagram of a conventional terminator type marine power generator.

[Explanation of reference numerals] 1, 101, 201 ... Ocean floating structure, 2, 102 ... Closed space, 3, 103 ... Ceiling wall, 4, 104, 204 ... Turbine, 5, 105 ... Turbine room, 6, 106, 206
… Support shafts, 7, 107… Air piston chambers, 10, 210…
Generator, 13, 113 ... Liquid, 14, 114 ... Partition wall, 15, 115 ... Bottom wall, 16, 116 ... Upper compressed air flow passage, 17, 117 ... Lower compressed air flow passage, 19 ... Shielding plate, 21 ... Float, 25 ... Weight, 26 ... Wave receiver, 28
A, 28B, 28C, 28D ... Open / close valve, 31 ... Solenoid, 32 ... Liquid level detection sensor, 114 ... Edge, 234 ...
Rotating shaft, 235 ... Winding, 236 ... Field magnet, 237 ... Rotating cylinder shaft, 241 ... Rotating transmission device, W ... Wave, W. L ... Liquid level.

Claims (10)

(57) [Claims] 1. A turbine chamber is provided in a central portion of a substantially enclosed space formed inside an offshore floating structure, and a generator linked to a turbine in the turbine chamber is provided above an upper wall of the enclosed space. The liquid is filled in the sealed space so that at least the liquid level is lower than the lower wall of the turbine chamber, and a plurality of air piston chambers are provided around the turbine chamber. The partition wall that separates the piston chambers extends downward from the ceiling wall in the closed space beyond the liquid surface, so that the spaces above the liquid surfaces of the air piston chambers are separated from each other. By communicating with each other only through this turbine chamber, the ocean floating structure inclines due to the waves, the liquid level rises and falls in each piston chamber, and the air in the piston chamber is compressed or decompressed. A marine power generator using wave energy, characterized in that compressed air flows from the compressed air piston chamber to the decompressed air piston chamber to continuously rotate the turbine in one direction at all times. 2. A turbine chamber, in which a turbine is laterally arranged, is arranged in an upper part of a central portion in a substantially enclosed space formed inside an offshore floating structure, and a generator connected to the turbine in the turbine chamber is interlocked. It is arranged above the upper wall of the closed space, and the liquid is filled in the closed space so that at least the liquid level is lower than the lower wall of the turbine chamber. The air piston chamber is arranged, and the partition wall that partitions each piston chamber is
By extending downward from the ceiling wall in this closed space beyond the liquid level, the spaces above the liquid level of each of these air piston chambers communicate with each other only through this turbine chamber, and Above the turbine chamber, there is a compressed air flow path that connects the left and right air piston chambers.
Compressed air flow path to be communicated under side of the left and right air piston chamber below are respectively provided, the liquid moves up and down at the left and right air piston chamber marine floating structure by waves inclined to the right and left, the air piston chamber When the air is compressed or decompressed, the compressed air alternately flows through the compressed air flow path from the compressed air piston chamber to the decompressed air piston chamber so that the turbine is always unidirectional. An ocean power generation device using wave energy, which is characterized by being continuously rotated. 3. The upper and lower compressed air flow passages face the air piston chamber on the side where the internal air is compressed as the compressed air alternately flows into the left and right air pist chambers, respectively. Of the openings, the opening of the compressed air flow passage on the side that allows the flow of compressed air that rotates the turbine in the one direction is opened, and conversely, the compressed air flow passage that allows the inflow of compressed air that rotates the turbine in the reverse direction. 3. The wave energy utilizing marine power generation apparatus according to claim 2, wherein the opening is provided with an on-off valve for closing the opening. 4. An on-off valve is rotatably supported by a base end side of the turbine chamber so as to be vertically swingable from the upper and lower intermediate portions of the turbine chamber toward the left and right air piston chambers, and one of them is supported by a float on a liquid surface. The other is composed of a shield plate supported by a weight that also serves as a float to balance the weight by adding the buoyancy of the liquid surface.The shield plate on the side where the float is installed is extended by the rise of the liquid surface. The end is in contact with the ceiling wall of the ocean floating structure, and the shield plate on the side where the float and weight is installed is configured so that the extended free end is located below the rising liquid level due to the rise of the liquid level. The ocean power generation device using wave energy according to claim 3. 5. An on-off valve is provided at the left and right openings of the upper and lower compressed air flow passages, respectively, with the upper end pivotably supported.
The on-off valves provided at the openings of the respective compressed air flow passages on the rear side in the rotational direction of the turbine are always forcibly closed on both the downstream side and the upstream side in the flow direction of the compressed air, and the air in the air piston chamber is kept at a predetermined level. The wave energy utilizing marine power generator according to claim 3, further comprising a mechanical closing mechanism that is opened when the pressure exceeds a pressure. 6. The mechanical closing mechanism comprises an electromagnetic solenoid and a detection sensor provided in each air piston chamber for detecting that the air in the air piston chamber is compressed to a predetermined pressure or more. Based on the compression detection information of air above a predetermined pressure in the air piston chamber, the electromagnetic solenoid is operated to allow the on-off valve to swing, and conversely, based on the normal pressure detection information, the electromagnetic solenoid is operated.
6. The structure according to claim 5, wherein the on-off valve is prevented from swinging.
Ocean power generator using wave energy as described. 7. The wave energy utilizing marine power generator according to claim 2, wherein the bottom wall of the marine levitation structure is formed in a ship bottom shape at least in a sectional shape in a direction along the axial direction of the rotating shaft of the turbine. 8. A marine levitation structure is formed in a circular shape in a plan view, and a turbine chamber provided with a turbine is installed in an upper portion of a central portion of a substantially internal hermetically sealed space thereof with a rotation axis extending vertically. vignetting, with the turbines chamber of the turbine geared linked generator is arranged in the wall above on the enclosed space, lower than the lower wall of at least the liquid surface the turbine chamber in the enclosed space The turbine chamber is filled with the liquid in a certain manner, and a plurality of air piston chambers are provided around the turbine chamber, and a partition wall for partitioning each piston chamber further extends beyond the liquid level from the ceiling wall in the closed space. By extending downward, the spaces above the liquid surface of each of the air piston chambers communicate with each other only through this turbine chamber, and at the openings of the air piston chambers facing the turbine chamber, A compressed air flow-down guide that guides compressed air in the turbine rotation direction is provided on the partition wall on the upstream side of the rotation direction of the bottle, and the ocean levitation structure is inclined by the waves and the liquid level rises and falls in each piston chamber, When the air in the room is compressed or decompressed, compressed air flows from the compressed air piston chamber to the decompressed air piston chamber, so that the turbine is continuously rotated in one direction at all times. An ocean power generation device using wave energy, which is characterized in that 9. The wave energy utilizing marine power generation device according to claim 8, wherein the bottom wall of the ocean floating structure is formed in a bowl shape in which the central portion is at the lowest position and the peripheral portion is at the upper position. 10. The generator has a support shaft of a turbine which is rotated in opposite directions to each other by a rotary shaft arranged in a horizontal direction and a rotary cylinder shaft externally fitted to the rotary shaft. 3. The wave energy according to claim 1, wherein windings are provided on one side and field magnets are provided on the other side at portions of the rotary shaft and the rotary cylinder shaft which are interlocked and connected to each other and face each other. Utilized marine power generator.