JP7174503B1 - Fluid power generation system and its installation structure - Google Patents

Abstract

Kind Code: A1 Not only is it possible to efficiently convert fluid energy into electrical energy to obtain high power generation efficiency and a large amount of power generation, but also when the system is used in deep waters on the ocean, the construction cost of the system is reduced and maintenance work is reduced. To provide a hydrodynamic power generation system and its installation structure that can reduce the burden on A fluid power generation system (1) includes a fluid drive device (1A), a power generation device (1B), and a floating body device (5). The fluid driving device 1A has first and second rotating bodies 2A and 2B, an endless belt 3A, a first resistance member 30, and auxiliary rotating bodies 2C to 2H. These are assembled to the support 10 . The power generation device 1B receives the rotational force of the output shaft 21b of the fluid drive device 1A with the rotation shaft 60 of the power generator 6 to generate power. The floating body device 5 is composed of a floating body fitting 5A and an anchoring fitting 5B. The floating device 5A is an object that floats on the fluid, and the mooring device 5B maintains and fixes the floating device 5A at a predetermined position. [Selection drawing] Fig. 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid power generation system capable of efficiently converting fluid energy such as hydraulic power into electrical energy to improve power generation efficiency, and an installation structure thereof.

2. Description of the Related Art In recent years, in addition to the depletion of fossil fuels, global environmental problems such as global warming have become more serious, and thus power generators and power generation methods using natural energy have been attracting attention. In particular, due to the issue of CO2 emission rights and the introduction of the RPS (Renewable Portfolio Standard) system, it is expected that the importance of this will further increase in the future.

For example, photovoltaic power generation equipment that utilizes sunlight, which is a natural energy source, is easy to install and has relatively low power generation costs. Its spread is rapidly progressing to scale facilities.

Moreover, in addition to conventional fixed solar power generation devices, portable solar power generation devices that do not require installation work or the like and can be easily transported and installed at different locations are attracting attention. For example, Patent Literature 1 discloses a portable photovoltaic power generation device that can be installed and used at any location such as outdoors where there is no power source.

Specifically, a large number of electrically connected sheet-like or film-like photovoltaic sheets are stretchable and stored in a storage case so that they can be carried, and the user can remove them from the storage case at any place. By pulling out the photovoltaic sheet, it is possible to use electric equipment by efficiently using sunlight to generate electricity even outdoors where there is no power supply.

In addition, many proposals have been made for fluid drive devices that generate power by driving a drive device using a fluid such as wind power or water power as a working body. For example, Patent Literature 2 discloses a hydraulic power generator that is installed in waterways such as rivers and agricultural waterways to use water as a natural energy source.

Specifically, it has a main body consisting of two discs arranged facing each other and paddles attached at equal intervals radially from the center axis of the discs, and the paddles in the water receive water flow pressure. Thus, the power generating device is driven using the rotational force obtained from the water shaft to which the paddle portion is connected.

However, in the photovoltaic power generation device disclosed in Patent Document 1, the amount of power generated depends on the weather and the amount of insolation. The problem is that it cannot generate electricity.

On the other hand, in rivers and agricultural waterways where the hydraulic power generator disclosed in Patent Document 2 is installed, the water volume is adjusted so that a predetermined flow rate is maintained for each season, so a constant flow rate is continuously maintained. It is possible to secure Therefore, unlike solar power generation equipment, the amount of power generation does not become unstable due to external factors such as the amount of solar radiation, and stable power generation is possible throughout the year.

However, the hydroelectric power generator disclosed in Patent Document 2 has a maximum diameter of about 1.4 m, which is large. It is a matter of great concern that it cannot receive sufficient water pressure to rotate it, and cannot obtain the amount of power generation as planned.

Therefore, in recent years, as shown in Patent Document 3 and Patent Document 4, fluid energy such as hydraulic power is efficiently converted into electrical energy, and high power generation efficiency and large power generation are achieved without being affected by weather and solar radiation. A hydrodynamic power generation system has been proposed that can stably obtain

JP-A-2006-86203 JP 2012-92750 A Japanese Patent No. 6731561 Japanese Patent No. 6894556

The hydrodynamic power generation systems proposed in Patent Documents 3 and 4 above have a structure in which the support is fixed to the bottom of the water. It doesn't take long.
However, these hydrodynamic power generation systems require enormous costs and time to construct the systems when used in deep waters. Furthermore, on the ocean, the position of the sea surface rises and falls due to the phenomenon of high tide and low tide. Therefore, in order to obtain a stable amount of power, the height of the system must be adjusted at each high tide or low tide, which poses a problem of troublesome maintenance work.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. An object of the present invention is to provide a hydrodynamic power generation system and its installation structure that can reduce the construction cost of the system and the burden of maintenance work even when used on the sea.

In order to solve the above-mentioned problems, a first invention provides a fluid drive device having an output shaft capable of outputting a rotational force corresponding to fluid pressure, and a power generation operation by receiving the rotational force of the output shaft of the fluid drive device. and a floating device for holding the fluid driving device and the power generating device on a fluid, wherein the fluid driving device includes a first rotating body and a first rotating body. a second rotating body which maintains a predetermined distance from the body and whose center axis of rotation is parallel to the center axis of rotation of the first rotating body; and an endless belt wound around the first rotating body and the second rotating body. , a plurality of first resistance members each having a concave pressure-receiving surface portion for receiving fluid pressure and erected at predetermined intervals on the surface of the endless belt; In a state parallel to the central axis of rotation of the second rotating body, it is disposed between the first rotating body, the second rotating body, and the endless belt, and is moved up and down by a support fixed on the floating body device. and a plurality of freely supported auxiliary rotating bodies, and the power generation device receives the rotational force of the output shaft of the fluid drive device with the rotating shaft of the generator to generate power. is attached, the fluid drive device and the power generation device are assembled to the support, and one or more mooring devices are provided for maintaining the floating device in a predetermined position so as not to be washed away.
With such a configuration, the floating device of the floating device can be floated on the fluid, and the floating device can be fixed at a desired depth position by the mooring device. In other words, the fluid driving device and the power generation device can be fixed at predetermined positions on the fluid via the floating body device.
At this time, by positioning one or more auxiliary rotating bodies among the plurality of auxiliary rotating bodies in the fluid drive device below the other auxiliary rotating bodies, the first rotating body and the second rotating body of the endless belt are The endless belt portion below the rotating body can be set to be curved substantially in a dogleg shape in the depth direction of the fluid. By setting the mounting height of the fluid driving device and the power generating device to the support in advance, the first rotating body and the second rotating body are positioned above the fluid surface, and the curved lower body is positioned above the fluid surface. A plurality of first resistance members on the side endless belt portion can be completely submerged in the fluid.
Accordingly, when the plurality of first resistance members completely submerged in the fluid receive the fluid pressure in the fluid, the first rotating body and the second rotating body around which the endless belt is wound move in the fluid pressure direction. and the rotational force is output to the output shaft of the fluid drive device. Then, this rotational force is transmitted to the rotating shaft of the generator in the power generator, and the generator performs power generation operation.

According to a second invention, in the fluid power generation system according to the first invention, the floating device of the floating device is a hollow body capable of injecting and discharging fluid.
With such a configuration, the floating body can be positioned at a desired depth in the fluid by injecting or discharging the fluid into the floating body. In addition, by injecting the fluid into the floating device, the center of gravity of the entire fluid power generation system can be lowered, and as a result, the entire fluid power generation system floating on the fluid can be kept in a stable state.

In a third invention based on the fluid power generation system according to the first invention or the second invention, the mooring device of the floating device includes a linear member having one end connected to the floating device and the other end of the linear member. and a fixing member attached to the free end of the

A fourth invention is the hydrodynamic power generation system according to any one of the first invention to the third invention, wherein linear grooves having a predetermined cross-sectional shape are formed in the first rotating body and the second rotating body. and linear projections that are provided on the peripheral surface of the plurality of auxiliary rotating bodies and that have the same cross-sectional shape as the linear grooves and can be fitted into the linear grooves are provided on the inner surface of the endless belt. configuration.
With such a configuration, when the first resistance member receives fluid pressure, the first rotating body, the second rotating body, the plurality of auxiliary rotating bodies and the endless belt are rotated in a state in which the linear grooves are fitted to the linear projections. and rotate together. In other words, if the endless belt is simply wound around the first rotating body, the second rotating body, and a plurality of auxiliary rotating bodies, the endless belt may shift laterally depending on the flow direction of the fluid, causing the first rotating body to move. There is a risk of deviating from the However, in the present invention, the endless belt is not only wound around the first rotating body, the second rotating body, and the plurality of auxiliary rotating bodies, but also the linear projections of the linear projections of the first rotating body, etc. Since it is fitted in the groove, the endless belt will not come off from the first rotating body or the like even if it receives fluid pressure in any direction.

According to a fifth aspect of the present invention, in the hydrodynamic power generation system according to the fourth aspect, the linear grooves provided on the peripheral surfaces of the first rotating body and the second rotating body are set to rows of holes of the same shape. and a configuration in which the linear projections provided on the inner surface of the endless belt are linear projections that have the same cross-sectional shape as the cross-sectional shape of the row-shaped holes and can be fitted into the row-shaped holes. do.

A sixth invention is the fluid power generation system according to any one of the first invention to the fifth invention, wherein a plurality of second resistance members having pressure receiving surface portions for receiving fluid pressure are provided on the circumferential surface. and is rotatable integrally with the second rotor and has a rotation center axis as an output shaft.
With such a configuration, when the first rotating body and the second rotating body rotate in the fluid pressure direction, the third rotating body also rotates, and large rotational energy is applied to the second rotating body and the third rotating body. A rotational force corresponding to this rotational energy is output to the output shaft of the fluid drive device.
Then, this large rotational force is transmitted to the rotating shaft of the generator, and the generator performs power generation operation.
As described above, according to the present invention, since the large rotational energy generated by the second rotating body and the third rotating body is directly transmitted to the power generator, the rotation efficiency is improved, and the power generator The amount of power generated by

A seventh invention is the fluid power generation system according to any one of the first invention to the sixth invention, wherein a plurality of third resistance members having pressure receiving surface portions for receiving fluid pressure are provided on the circumferential surface. The fourth rotating bodies erected at intervals are connected to at least one end side of the rotation center axis of the first rotating body or the rotation center axis of the second rotating body in the fluid driving device.
With this configuration, the third resistance member receives fluid pressure to rotate the fourth rotating body, so that the rotational force is applied to the first or second rotating body to which the fourth rotating body is connected. Join. This increased rotational force is transmitted to the generator through the second rotating body and the third rotating body, so that the amount of power generated can be further increased.

An eighth invention is the fluid power generation system according to any one of the first invention to the seventh invention, wherein the first resistance member comprises a pressure receiving surface portion formed of a flexible material, and a pressure receiving surface portion formed of a flexible material. It is formed with a supporting member that stands upright on the surface of the endless belt and supports it.
With such a configuration, the first resistance member rotates the first rotating body and the second rotating body by receiving the fluid pressure at the pressure receiving surface facing the flow. Then, when the flow direction of the fluid changes, the pressure-receiving surface portion formed of a flexible material bends in the flow direction. As a result, the pressure-receiving surface changes to face the flow, receives the fluid pressure, and rotates the first rotating body and the second rotating body.
That is, according to the present invention, the direction of the pressure receiving surface portion of the first resistance member changes according to the change in the direction of the flow of the fluid. The operation of the hydrodynamic power generation system can be continued without corresponding movement.

A ninth invention is the fluid power generation system according to any one of the first invention to the seventh invention, wherein the plurality of first resistance members are arranged in an endless belt so that the pressure receiving surface portions are alternately directed in opposite directions. are erected at predetermined intervals on the surface of the
With such a configuration, even if the fluid flow changes, the first resistance member having the pressure-receiving surface facing the flow direction catches the fluid pressure. The operation of the fluid power generation system can be continued.

In a tenth aspect based on the fluid power generation system according to the ninth aspect, each of the first resistance members has a pressure-receiving surface portion having a substantially semicircular cross-sectional shape, The pressure-receiving surface portion is formed with a supporting member that stands upright on the surface of the endless belt.
Since the pressure-receiving surface portion of the first resistance member is formed to have a substantially semicircular cross section, when the concave surface side of the pressure-receiving surface portion receives the flow of fluid, it can receive extremely large force from the fluid. However, when the flow changes in the opposite direction, the fluid flow is received by the convex side of the first resistance member, and the force that can be received from the fluid is drastically reduced.
However, according to the present invention, a plurality of first resistance members are erected on the surface of the endless belt so that the pressure-receiving surface portions having a substantially semicircular cross section are alternately directed in opposite directions. Once the system is installed, even if the direction of the fluid flow changes, the fluid flow can always be received by the concave side of the pressure receiving surface.

An eleventh invention is the hydrodynamic power generation system according to any one of the first invention to the seventh invention, wherein the first resistance member comprises a pair of pressure receiving surface portions joined back to back and the pair of and a supporting member that supports the pressure-receiving surface portion of the endless belt by erecting it on the surface of the endless belt.
With this configuration, even if the flow of the fluid changes, the pressure receiving surface portion facing the flow direction of the pair of pressure receiving surface portions joined back to back catches the fluid, so that the fluid power generation system can be made to correspond to the direction of the flow. The operation of the fluid power generation system can be continued without moving the

In a twelfth invention based on the fluid power generation system according to the eleventh invention, each of the first resistance members comprises a pair of pressure receiving surface portions each having a substantially semicircular cross section, and the pair of pressure receiving surface portions forming an endless belt. The pair of pressure-receiving surfaces of each first resistance member is formed with a support member that stands upright on the surface of the endless belt so as to face the length direction, and the pair of pressure-receiving surfaces of each first resistance member are oriented in opposite directions to each other. In addition, the pair of pressure-receiving surface portions are joined back-to-back.
With such a configuration, once the fluid power generating system of the present invention is installed, the flow of fluid can always be received by the concave side of the pressure receiving surface portion even when the direction of flow changes.

In a thirteenth invention, in the fluid power generation system according to any one of the first invention to the twelfth invention, an output shaft of the fluid drive device is provided between the output shaft of the fluid drive device and the rotation shaft of the generator. A rotation direction converter is provided that can change the rotation direction of the rotation shaft of the generator with respect to the rotation direction of the generator to the same direction or the opposite direction.
With such a configuration, when there is no change in the flow direction of the fluid, the rotational direction of the rotating shaft of the generator with respect to the rotating direction of the output shaft of the fluid drive device can be set, for example, in the same direction by the rotation direction converter. can. When the flow direction of the fluid is reversed, the rotational direction of the rotating shaft of the generator with respect to the rotating direction of the output shaft of the fluid drive device can be reversed by the rotation direction converter. That is, according to the present invention, the operation of the fluid power generation system can be continued without moving the direction of the fluid power generation system to match the flow direction of the fluid.

A fourteenth invention is a fluid power generation system installation structure for installing the fluid power generation system according to any one of the first invention to the thirteenth invention on a fluid, comprising: one or more auxiliary rotating bodies are positioned below the other auxiliary rotating bodies, and the endless belt portion of the endless belt below the first rotating body and the second rotating body is exposed to the fluid The first rotating body and the second rotating body are positioned above the fluid surface and attached to the curved lower endless belt portion. The floating body device of the floating body device is arranged on or in the fluid, and the floating body device is fixed at the arrangement position by a mooring device so that the plurality of positioned first resistance members are completely submerged in the fluid. It was configured.
With such a configuration, when the plurality of first resistance members completely submerged in the fluid are subjected to fluid pressure in the fluid, the first rotating body and the second rotating body around which the endless belt is wound are compressed by the fluid pressure. direction, and the rotational force is output to the output shaft of the fluid drive device. Then, this rotational force is transmitted to the rotating shaft of the generator in the power generation device, and the generator performs power generation operation.
In addition, since the first rotating body and the second rotating body are positioned above the fluid surface, the first rotating body, the second rotating body, and the endless belt portion above the fluid surface not be resisted by As a result, the first rotating body and the second rotating body rotate efficiently.
If the hydrodynamic power generation system is installed on the ocean, etc., where there are low tides and high tides, there is a risk that the first and second rotors and the endless belt will be completely submerged in the sea at high tide. be. When installing in a place where there is such a possibility, the height of the support is set higher than usual, so that the first and second rotating bodies and the endless belt are in the sea even at high tide. You can keep it from sinking.
In addition, when installed in such a place, the sea level fluctuates due to the influence of the tide, so the fluid drive device and the power generation device are affected by the sea level fluctuation. However, since the floating device of the floating body device is fixed by the mooring device, the fluid driving device and the power generation device on the floating body device are not affected by vertical fluctuations of the sea surface. In other words, the fluid drive device and the power generation device will not be swayed or swayed by vertical movement of the sea surface or waves, and will continue to be positioned at the arrangement position.

In a fifteenth aspect of the invention, in the fluid power generation system installation structure according to the fourteenth aspect of the invention, the most downstream auxiliary rotor among the plurality of auxiliary rotors is positioned lower than the other auxiliary rotors. and
With such a configuration, the plurality of first resistance members can efficiently secure fluid pressure, and as a result, extremely large electric power can be generated.
That is, the plurality of first resistance members located upstream of the auxiliary rotating body located below receive a strong fluid pressure. Further, the fluid pressure received by the plurality of first resistance members located downstream of the auxiliary rotating body located below is weak.
However, in the present invention, the most downstream auxiliary rotator among the plurality of auxiliary rotators is positioned lower than the other auxiliary rotators. Therefore, almost all the first resistance members can efficiently receive strong fluid pressure, and as a result, extremely large electric power can be generated.

In a sixteenth aspect of the invention, in the fluid power generation system installation structure according to the fourteenth aspect of the invention, an auxiliary rotor positioned substantially in the center of the plurality of auxiliary rotors is positioned lower than the other auxiliary rotors. and
With such a configuration, the plurality of first resistance members located upstream of the auxiliary rotating body located below receive the fluid pressure, and the first rotating body, the second rotating body, and the endless belt rotate. will do. Therefore, for example, when the fluid flows from left to right, the plurality of first resistance members positioned on the left side of the auxiliary rotating body positioned below receive the fluid pressure, and the plurality of first resistance members positioned on the right side receive the fluid pressure. The first resistance member receives substantially no fluid pressure. However, when the fluid changes to flow from right to left, the plurality of first resistance members positioned on the right side of the lower auxiliary rotor receive the fluid pressure, and the plurality of first resistance members positioned on the left side receive the fluid pressure. The first resistance member of the receives substantially no fluid pressure. At this time, since the auxiliary rotator positioned substantially in the center of the plurality of auxiliary rotators is positioned lower than the other auxiliary rotators, the first resistance member positioned to the left of the auxiliary rotator is The number and the number of first resistance members located on the right side of the auxiliary rotating body are substantially the same. Therefore, for example, by applying the first resistance member of any one of the eighth invention to the twelfth invention, the rotation energy obtained by the fluid pressure from the left direction and the rotation energy obtained by the fluid pressure from the right direction Therefore, even if the direction of the fluid changes, almost the same amount of rotational energy can be obtained.
When the fluid power generation system is installed in a place where the flow direction of the fluid is likely to change, the rotation direction converter used in the thirteenth invention and the first one used in any one of the eighth to twelfth inventions Preferably a resistance member is applied.

In a seventeenth invention, in the installation structure of a fluid power generation system according to any one of the fourteenth invention to the sixteenth invention, at least a portion of the fluid drive device above the fluid surface is surrounded from the surroundings and the fluid The structure is such that protective covers are provided to enclose the part of the device that is completely submerged inside only from both sides.
With such a configuration, the protection cover protects the fluid driving device even if a storm, flooding, or the like occurs, and waves and winds occur.

According to an eighteenth invention, in the fluid power generation system installation structure according to the seventeenth invention, the protective cover has a top surface portion covering the fluid drive device from above.
With such a configuration, the fluid drive device is protected not only from the surroundings but also from above by the protective cover.

As explained in detail above, according to the present invention, fluid energy such as hydraulic power can be efficiently converted into electrical energy to obtain high power generation efficiency and a large amount of power generation. Even in this case, there is an excellent effect that the construction cost of the system can be reduced and the burden of maintenance work can be reduced.
That is, the fluid power generation system of the present invention has a configuration in which a fluid driving device and a power generation device are assembled on a floating device. Therefore, when the fluid power generation system is installed on deep water such as on the ocean, the fluid power generation system is assembled in advance on land or in a dock. Then, the assembled hydrodynamic power generation system is towed to an installation position on the sea by a tugboat or the like, lowered on the sea, and only by fixing the floating device of the floating device with a mooring device, the fluid drive device and the power generation device are stabilized on the sea. You can maintain your posture. Therefore, the cost and time required for installing and constructing the fluid power generation system can be reduced. In addition, when installing on the ocean where phenomena of high tide and low tide occur, the height of the support body to which the fluid driving device and the power generating device are assembled is set according to the height of the fluid surface at high tide. As a result, a stable amount of power can be obtained without adjusting the height of the fluid drive device and the power generation device each time the tide is high or low, so maintenance of the system is very easy.

In particular, according to the second invention, by injecting or discharging the fluid into or out of the floating body, the floating body can be positioned at a desired depth in the fluid. In addition, by injecting the fluid into the floating device, the center of gravity of the entire fluid power generation system can be lowered, and as a result, the entire fluid power generation system floating on the fluid can be stabilized.

Moreover, according to the third invention, the floating body fitting of the floating body device can be easily fixed by the mooring means.

Moreover, according to the fourth and fifth inventions, it is possible to prevent the situation in which the endless belt comes off from the first rotating body or the like.

Further, according to the sixth and seventh inventions, it is possible to further increase the amount of power generation.

Further, according to the eighth to thirteenth inventions and the sixteenth invention, even when the direction of the flow of the fluid changes, the fluid power generation system can be operated without moving the fluid power generation system in accordance with the direction of the flow. can be continued.

Moreover, according to the fifteenth invention, the fluid pressure can be efficiently secured, and as a result, extremely large electric power can be generated.

Furthermore, according to the seventeenth and eighteenth inventions, the fluid drive device can be protected from storms, rising water, and the like.

1 is a perspective view showing a fluid power generation system according to a first embodiment of the invention; FIG. 1 is a plan view of a fluid power generation system; FIG. 1 is a schematic diagram of a fluid power generation system; FIG. 4 is a perspective view showing a first resistance member; FIG. FIG. 5 is a cross-sectional view taken along line BB in FIG. 4; FIG. 4 is an exploded perspective view for explaining how auxiliary rotating bodies are attached; 1 is a schematic diagram of a hydrodynamic power generation system installed offshore; FIG. It is a schematic diagram for explaining the depth setting corresponding to the ebb and flow. It is a perspective view which shows the 1st modification of a floating body apparatus. It is the schematic which shows the attachment state of a floating body apparatus. It is a perspective view which shows the floating body tool based on the principal part of the 2nd modification of a floating body apparatus. It is the schematic which shows the attachment state of a floating body apparatus. 13(a) is a perspective view showing a main part of a fluid power generation system according to a second embodiment of the present invention, FIG. 13(a) showing a first rotating body and a second rotating body, and FIG. An auxiliary rotating body is shown, and FIG. 13(c) shows an endless belt. 4 is a cross-sectional view showing linear grooves and linear projections; FIG. It is sectional drawing which shows the modification of a linear groove|channel and a linear protrusion, (a) of FIG. 15 shows a U-shaped cross section, and (b) of FIG. 15 shows a V-shaped cross section. FIG. 16A is a perspective view showing a main part of a fluid power generation system according to a third embodiment of the present invention, FIG. 16A showing a first rotating body and a second rotating body, and FIG. An auxiliary rotating body is shown, and FIG. 16(c) shows an endless belt. FIG. 11 is a perspective view showing a fluid power generation system according to a fourth embodiment of the invention; FIG. 11 is a plan view of a fluid power generation system according to a fourth embodiment; FIG. 11 is a plan view showing a fluid power generation system according to a fifth embodiment of the present invention; This is a modification of the fifth embodiment. FIG. 10 is a schematic diagram showing an installation structure of a fluid power generation system according to a sixth embodiment of the present invention; FIG. 4 is a schematic diagram for explaining the action and effect of this embodiment; FIG. 11 is a schematic diagram showing an installation structure of a fluid power generation system according to a seventh embodiment of the present invention; FIG. 4 is a schematic cross-sectional view of a first resistance member applied to the installation structure of the fluid power generation system of this embodiment; FIG. 4 is a plan view showing a rotation direction converter applied to the installation structure of this embodiment; 26A and 26B are schematic diagrams for explaining the operation of the installation structure of the fluid power generation system, in which FIG. The operation is shown when the direction is the left direction in the drawing. FIG. 21 is a perspective view showing a modification of the first resistance member applied to the seventh embodiment; FIG. 12 is a schematic diagram showing the main part of the installation structure of the fluid power generation system according to the eighth embodiment of the present invention; FIG. 20 is a perspective view showing a main part of a fluid power generation system applied to an installation structure according to a ninth embodiment of the invention; It is a schematic diagram which shows a principal part. FIG. 22 is a perspective view showing a modification of the first resistance member applied to the ninth embodiment; It is an exploded perspective view of a modification. It is a side view which shows the 1st resistance member of a modification, partially breaking off. FIG. 21 is a perspective view showing an installation structure of a hydrodynamic power generation system according to a tenth embodiment of the present invention; It is a schematic sectional view of an installation structure. FIG. 20 is a schematic cross-sectional view showing an installation structure of a fluid power generation system according to an eleventh embodiment of the present invention; 1 is a schematic diagram of a fluid power generation system applied to an embodiment; FIG. FIG. 4 is a schematic diagram showing a state of decrease in the power generation amount of the fluid power generation system; FIG. 4 is a schematic diagram showing an increase state of the power generation amount of the fluid power generation system; FIG. 2 is a schematic diagram showing a power generation stop state of the fluid power generation system; 1 is a schematic diagram of a fluid power generation system showing a slack prevention mechanism; FIG. It is a perspective view showing an endless belt. It is a schematic diagram which shows the operating state of a slack prevention mechanism.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best mode of the present invention will be described with reference to the drawings.

(Example 1)
1 is a perspective view showing a fluid power generation system according to a first embodiment of the present invention, FIG. 2 is a plan view of the fluid power generation system, and FIG. 3 is a schematic diagram of the fluid power generation system.
As shown in FIG. 1, the fluid power generation system 1 of this embodiment includes a fluid drive device 1A, a power generation device 1B, and a floating body device 5. As shown in FIG.

The fluid drive device 1A is a device for outputting a rotational force corresponding to fluid pressure, and uses the extension 21b (see FIG. 2) of the shaft portion 21 of the second rotor 2B as an output shaft.
This fluid driving device 1A has a first rotor 2A, a second rotor 2B, an endless belt 3A, a plurality of first resistance members 30, and a plurality of auxiliary rotors 2C to 2H. are assembled to the support 10 .

Specifically, as also shown in FIG. 2, in the support 10, columns 11A and 12A having the same height are erected in the longitudinal direction of the endless belt 3A. Supports 11B and 12B are erected in the width direction of the endless belt 3A so as to face the supports 11A and 12A. Further, a plurality of struts 13A to 18A are erected between the struts 11A and 12A, and the same number of struts 13B to 18B are erected in the width direction of the endless belt 3A so as to face the struts 13A to 18A. there is

The first rotating body 2A has a shaft portion 20 as a central axis of rotation, and both ends of the shaft portion 20 are rotatably attached to the upper ends of the columns 11A and 11B.
The second rotating body 2B has the same shape as the first rotating body 2A, and has a shaft portion 21 as a central axis of rotation, like the first rotating body 2A. Both ends of the shaft portion 21 are rotatably attached to the upper ends of the columns 12A and 12B.
That is, the first rotating body 2A and the second rotating body 2B are kept at a constant distance with the shaft portions 20 and 21 being parallel, and the endless belt 3A is arranged in such a first rotating body. 2A and the second rotating body 2B.
The endless belt 3A is a wide belt-like body, and can be formed of a multi-layered rubber member, synthetic resin, metal chain belt, or the like.

A plurality of first resistance members 30 are erected on the surface of the endless belt 3A.
4 is a perspective view showing the first resistance member, and FIG. 5 is a cross-sectional view taken along line BB in FIG.
As shown in these figures, each first resistance member 30 is composed of a pressure-receiving surface portion 31 and a support member 32 that holds the pressure-receiving surface portion 31 .
The pressure-receiving surface portion 31 is a portion for receiving fluid pressure, and is recessed with an arcuate cross-section. The length of the pressure receiving surface portion 31 is set shorter than the width of the endless belt 3A so as to leave an extra width in the endless belt 3A. Although any material can be used for the pressure receiving surface portion 31, a concavely curved metal plate is used in this embodiment.
The support member 32 has a frame portion 32a and fixing portions 32b, 32b formed at both ends of the frame portion 32a. The frame portion 32a is arranged along the width direction of the endless belt 3A, and the fixed portions 32b, 32b are fixed to the endless belt 3A with screws or the like.
The pressure receiving surface portion 31 is fitted in the frame portion 32a, and the upper end 31a and the lower end 31b are fixed to the frame portion 32a.
That is, a plurality of first resistance members 30 are erected at regular intervals on the surface of the endless belt 3A with the concave pressure receiving surface portion 31 directed in the lengthwise direction of the endless belt 3A.

In FIG. 1, the plurality of auxiliary rotating bodies 2C to 2H are arranged between the first and second rotating bodies 2A and 2B and the endless belt 3A in a state in which shaft portions 27c to 27h as central axes, which will be described later, are parallel. are arranged. These auxiliary rotors 2C to 2H are supported by supports 13A, 13B to 18A, 18B of the support 10 so as to be vertically movable.
FIG. 6 is an exploded perspective view for explaining the mounting state of each auxiliary rotor 2C (2D to 2H).
Specifically, as shown in FIG. 6, elongated holes 24 extending from the upper end to the lower end of the support are formed in each of the supports 13A, 13B (14A, 14B to 18A, 18B) of the support 10. As shown in FIG. Both ends of the shaft portion 27c (27d to 27h) of each auxiliary rotor 2C (2D to 2H) are rotatably fitted in the elongated holes 24, respectively.
By tightening the knobs 23, 23 on both ends of the shaft portion 27c (27d to 27h) projecting outward from the long hole 24, each auxiliary rotating body 2C (2D to 2H) is fixed at a predetermined height. can be done.
For example, as shown in FIG. 3, the auxiliary rotors 2C, 2E and 2G are fixed to the top of the posts 13A (13B), 15A (15B) and 17A (17B), respectively, so that the auxiliary rotors 2C and 2E , 2G are brought into pressure contact with the inner surface of the upper portion of the endless belt 3A. Then, the auxiliary rotating bodies 2D, 2F, 2H are respectively fixed to the lower positions of the pillars 14A (14B), 16A (16B), 18A (18B), and the auxiliary rotating bodies 2D, 2F, 2H are connected to the endless belt. By pressing against the inner surface of the lower portion of the endless belt 3A, it is possible to prevent the slackness of the endless belt 3A.
Furthermore, as shown in the figure, by fixing the auxiliary rotating body 2F at the lowest position, the lower portion of the endless belt 3A can be curved in a substantially dogleg shape. That is, the length of the lower portion of the endless belt 3A is made longer than the length of the upper portion so that more first resistance members 30 can be arranged on the lower portion of the endless belt 3A.

On the other hand, as shown in FIGS. 1 and 2, the power generation device 1B is a device that generates power by receiving the rotational force of the output shaft 21b of the fluid drive device 1A. The power generation device 1B generates power by receiving the rotational force of the output shaft 21b of the fluid drive device 1A with the rotation shaft 60 of the power generator 6. As shown in FIG.
This embodiment shows an example in which the output shaft 21b of the fluid drive device 1A and the rotating shaft 60 of the generator 6 are directly connected by the connecting member 61. It is also possible to provide it between the shaft 60 and change the rotation of the output shaft 21 b and transmit it to the rotating shaft 60 .

As described above, the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled is placed and fixed on the floating body device 5 as shown in FIGS.
The floating body device 5 is composed of a floating body fitting 5A and a plurality of mooring fittings 5B.
The floating device 5A is an object that floats on the fluid, and its shape and structure are arbitrary. In this example, a tank as a cavity body was applied. The floating device 5A has a rectangular parallelepiped shape that is approximately square in plan view and has a predetermined height. The floating member 5A is provided with an opening 51 through which the lid 50 can be attached and detached. As a result, the fluid can be injected into the cavity 52 of the floating body 5A through the opening 51 and discharged from the cavity 52 to the outside.
On the other hand, the mooring device 5B is a device for maintaining and fixing the floating device 5A at a predetermined position so that the floating device 5A is not washed away.
Specifically, the anchoring device 5B is composed of a linear member 53 and a fixing member 54. As shown in FIG. One end 53a of the linear member 53 is connected to the bottom corner of the floating member 5A, and the fixing member 54 is attached to the other free end 53b of the linear member 53. As shown in FIG.
As such a linear member 53, a chain or a wire can be applied, and as the fixing member 54, an anchor for fixing the floating device 5A by a gripping force such as a hook or a sinker for fixing the floating device 5A by its own weight. is applicable. In this embodiment, a chain is applied as the linear member 53 and an anchor is applied as the fixing member 54 .

Next, a method for installing the fluid power generation system 1 of this embodiment on the sea will be described. This description also specifically describes the installation structure of the fluid power generation system of the present invention.
FIG. 7 is a schematic diagram of a hydrodynamic power generation system installed on the sea, and FIG. 8 is a schematic diagram for explaining depth setting corresponding to the tide.
First, as shown in FIG. 7, for example, the auxiliary rotor 2F of the fluid drive device 1A is fixed at the lowest position compared to the other auxiliary rotors 2C to 2E, 2G, and 2H. In other words, the lower portion of the endless belt 3A is set in advance so that it curves in a substantially V-shape in the depth direction of the sea on land or on the dog.

Then, the fluid power generation system 1, in which the heights of the auxiliary rotors 2C to 2H of the fluid driving device 1A are set, is towed by a tugboat or the like to an installation position on the sea, and then unloaded on the sea. Then, the mooring device 5B of the floating body device 5 sinks to the seabed B, and the floating device 5A floats on the sea surface S.
Here, seawater W is injected into the cavity 52 of the floating body 5A through the opening 51. As shown in FIG.
As the seawater W is injected into the cavity 52, the floating body 5A sinks into the sea, and the fluid driving device 1A also sinks into the sea together with the floating body 5A. When the fluid driving device 1A sinks to a desired depth, the injection of seawater W into the floating body 5A is stopped. Specifically, the first rotating body 2A and the second rotating body 2B are positioned above the sea surface S, and the plurality of first resistance members 30 positioned in the portion of the curved endless belt 3A are completely submerged in the sea. The sinking depth of the floating body 5A is set so as to

When the fluid power generation system 1 is installed as described above, the plurality of first resistance members 30 completely submerged in the sea receive fluid pressure from seawater, so that the first rotating body 2A and the second rotating body 2B and rotate counterclockwise. At this time, as described above, since the first rotating body 2A and the second rotating body 2B are arranged above the sea surface S, the first rotating body 2A and the second rotating body 2A above the sea surface S The body 2B and the portion of the endless belt 3A rotate without being resisted by sea water.
This rotation is transmitted to the rotating shaft 60 of the generator 6 through the output shaft 21b (see FIG. 2), and the generator 6 performs power generation operation.

By the way, if the fluid power generation system 1 is installed on the sea, the fluid drive device 1A and the power generation device 1B may be affected by sea level fluctuations, waves, and the like, and may cause rolling or the like. However, in the hydrodynamic power generation system 1 of this embodiment, the floating body 5A is fixed at a desired position by the holding force of the fixing member 54 thrown into the sea, its own weight, and the weight of the linear member 53 so as not to move. Therefore, there is no possibility that the fluid drive device 1A or the power generation device 1B will shake or the like.
In particular, in this embodiment, the seawater W is injected into the cavity 52 of the floating body 5A to lower the center of gravity of the fluid power generation system 1 as a whole, so the attitude of the fluid power generation system 1 is stable.

Further, if the fluid power generation system 1 is installed on the ocean where there is a large tidal difference, the floating body 5A of the floating body device 5 will float on the sea surface S at low tide, and the first rotating body 2A of the fluid drive device 1A and the first rotating body 2A at high tide. There is a risk that the second rotating body 2B and the endless belt 3A will sink into the sea.
In the case of installation on the ocean, as shown in FIG. 8, the amount of seawater W to be injected into the floating body 5A is adjusted so that the sea surface S1 at low tide comes to the position of the lower portion of the endless belt 3A. adjust. Further, the heights of the supports 11A, 11B to 18A, 18B of the support 10 are set higher than normal so that the sea surface S2 at high tide is positioned below the first rotating body 2A and the second rotating body 2B. set high.
Such adjustments and settings can prevent problems during ebb and flow.

(Modification 1)
Here, a first modified example of the floating body device 5 applied in the first embodiment will be described.
FIG. 9 is a perspective view showing a first modified example of the floating device 5, and FIG. 10 is a schematic diagram showing the mounting state of the floating device 5. As shown in FIG.
As shown in FIG. 9, the floating body device 5 of this modified example is composed of a floating body fitting 5A having mounting openings C for mounting the support body 10 of the fluid drive device 1A, and a plurality of mooring fittings 5B.
Specifically, a pair of rectangular parallelepiped tanks 55 are arranged in parallel, and front and rear ends of the pair of tanks 55 are connected by a pair of plates 56, respectively. A mooring tool 5B is connected to both ends of each tank 55 .

The mounting opening C is a square-shaped opening. By fitting the support 10 of the fluid driving device 1A into the mounting opening C and fixing it to the floating body 5A, the fluid driving device 1A and the power generation device 1B can be assembled on the floating body 5A.
Specifically, as shown by the dashed line in FIG. 10, when the floating body 5A is floated on the sea, as many first resistance members 30 as possible among the plurality of first resistance members 30 in the curved lower portion of the endless belt 3A It is preferable to fix the support 10 to the floating body 5A so that the resistance member 30 is positioned inside the attachment opening C of the floating body 5A.

(Modification 2)
A second modification of the floating body device 5 will be described.
FIG. 11 is a perspective view showing a floating body fitting 5A according to a second modified example of the floating body device 5, and FIG.
As shown in these figures, a floating body fitting 5A applied to the floating body device 5 of this modified example is provided with a mounting opening C formed by hollowing out the central portion of the floating body fitting 5A of the first embodiment.
As in the first modification, the support 10 of the fluid drive device 1A is fitted into the mounting opening C and fixed to the floating body 5A, and the floating body 5A is floated on the sea. At this time, the support 10 is fixed to the floating body fitting 5A so that the curved lower portion of the endless belt 3A penetrates the mounting opening C and the lowest curved portion is positioned below the floating body fitting 5A. .

(Example 2)
A second embodiment of the invention will now be described.
13A and 13B are perspective views showing the essential parts of a hydrodynamic power generation system according to a second embodiment of the present invention. FIG. 13A shows a first rotor 2A and a second rotor 2B. 13(b) shows the auxiliary rotating bodies 2C to 2H, and FIG. 13(c) shows the endless belt 3A. FIG. 14 is a cross-sectional view showing linear grooves and linear projections.
As shown in these figures, in the hydrodynamic power generation system of this embodiment, a pair of linear grooves 2a are provided in the first and second rotors 2A and 2B, and a pair of linear grooves 2b are provided in the auxiliary rotor. 2C to 2H, and a pair of linear projections 3a are provided on the endless belt 3A, which is different from the first embodiment.

Specifically, as shown in (c) of FIG. 13, a pair of linear protrusions 3a protrude from the inner peripheral surface. As shown in FIG. 14, each linear protrusion 3a is formed to have a U-shaped cross section.
On the other hand, as shown in FIG. 13(a), the pair of linear grooves 2a are formed on the outer peripheral surface of the first rotor 2A (second rotor 2B) and the pair of linear projections 3a. It is recessed at a position corresponding to the projecting position of. Also, as shown in FIG. 13(b), the pair of linear grooves 2b are also formed on the outer peripheral surface of each auxiliary rotor 2C (2D to 2H) and at the projecting positions of the pair of linear projections 3a. is recessed at a position corresponding to
As shown in FIG. 14, these linear grooves 2a and 2b are formed in the same U-shaped cross section as the linear projection 3a.
In other words, when the endless belt 3A is wound around the first rotating body 2A, the second rotating body 2B, and the auxiliary rotating bodies 2C to 2H, the pair of linear projections 3a of the endless belt 3A are aligned with the first rotating body 2A. and the pair of linear grooves 2a of the second rotating body 2B and the linear grooves 2b of the auxiliary rotating bodies 2C to 2H.

The linear grooves 2a and 2b can be formed by engraving the outer peripheral surfaces of the first rotor 2A (second rotor 2B) and the auxiliary rotor 2C (2D to 2H). However, it can also be formed by forming larger grooves in these outer peripheral surfaces and mounting a separate ring-shaped member having the linear grooves 2a and 2b in the larger grooves. Also, the linear protrusions 3a can be formed by a member separate from the endless belt 3A.
When the linear grooves 2a and 2b and the endless belt 3A are formed of such members, it is preferable to use synthetic rubber, resin, or the like that acts as a suction cup when the members come into contact with each other.

As described above, in this embodiment, the endless belt 3A is wound around the first rotating body 2A, the second rotating body 2B, and the auxiliary rotating bodies 2C to 2H, and the pair of linear protrusions 3a of the endless belt 3A are formed. are fitted into the pair of linear grooves 2a of the first rotating body 2A and the second rotating body 2B and the linear grooves 2b of the auxiliary rotating bodies 2C to 2H. and the linear grooves 2a and 2b act against the external force. Therefore, even if the endless belt 3A receives fluid pressure not only in the flow direction but also in the lateral direction, it will not slip laterally and come off the first rotor 2A.
Other structural actions and effects are the same as those of the first embodiment, so description thereof will be omitted.

(Modification 3)
15A and 15B are cross-sectional views showing modifications of linear grooves and linear projections. FIG. 15A shows a U-shaped cross section, and FIG. 15B shows a V-shaped cross section. indicates
The cross-sectional shapes of the linear grooves 2a and 2b and the linear protrusions 3a are arbitrary. Therefore, in the above embodiment, the linear grooves 2a and 2b and the linear projection 3a having a U-shaped cross section were exemplified, but the present invention is not limited to this.
For example, as shown in FIGS. 15(a) and 15(b), linear grooves 2a and 2b and linear projections 3a having a U-shaped cross section or a V-shaped cross section can also be used.

(Example 3)
A third embodiment of the invention will now be described.
16A and 16B are perspective views showing the essential parts of a hydrodynamic power generation system according to a third embodiment of the present invention. FIG. 16A shows a first rotor 2A and a second rotor 2B. 16(b) shows the auxiliary rotating bodies 2C to 2H, and FIG. 16(c) shows the endless belt 3A.
As shown in these figures, in the hydrodynamic power generation system of this embodiment, instead of the linear grooves 2a applied to the second embodiment, a plurality of rows of holes 2c are formed in the first rotating body 2A (second 2 provided on the outer peripheral surface of the rotor 2B). Further, instead of the linear projections 3a, a plurality of rows of projections 3b are provided on the inner peripheral surface of the endless belt 3A. Further, in the auxiliary rotor 2C (2D to 2H), a pair of linear grooves 2b are provided on the outer peripheral surface of the auxiliary rotor 2C (2D to 2H) as in the second embodiment.
The cross-sectional shape of the hole 2c of the first rotating body 2A (second rotating body 2B) and the cross-sectional shape of the projection 3b of the endless belt 3A are set to be the same shape, and the projection 3b is fitted into the hole 2c. At the same time, by fitting the endless belt 3A into the linear groove 2b of the auxiliary rotor 2C (2D to 2H), it is possible to prevent the endless belt 3A from coming off the first rotor 2A and the like.
Other structural actions and effects are the same as those of the second embodiment, so description thereof will be omitted.

(Example 4)
A fourth embodiment of the invention will now be described.
FIG. 17 is a perspective view showing a fluid power generation system according to a fourth embodiment of the invention, and FIG. 18 is a plan view of the fluid power generation system according to the fourth embodiment.

As shown in these figures, the hydrodynamic power generation system of this embodiment differs from the above first to third embodiments in that a third rotating body 4 is additionally installed on the second rotating body 2B side.

That is, the third rotor 4 is arranged outside the support 12B of the support 10 and assembled to the shaft portion 21 of the second rotor 2B. As a result, the third rotor 4 rotates integrally with the second rotor 2B. An output shaft 21 b , which is an extension of the shaft portion 21 extending outward from the third rotating body 4 , is connected to the rotating shaft 60 of the generator 6 .
A plurality of second resistance members 40 are erected on the circumferential surface of the third rotating body 4 at regular intervals. Each second resistance member 40 is a plate-like member, and both surfaces thereof function as pressure receiving surface portions for receiving fluid pressure.
The structure of the second resistance member 40 is arbitrary, and the same structure as the first resistance member 30 may be applied as the second resistance member 40 instead of the plate-like member.

When the first and second rotating bodies 2A and 2B rotate, the third rotating body 4 rotates integrally with the second rotating body 2B. As a result, large rotational energy is generated by these second rotating body 2B and third rotating body 4. FIG.
This rotational energy is transmitted to the rotating shaft 60 of the generator 6 through the output shaft 21b, and the generator 6 performs power generation operation.
Thus, in the hydrodynamic power generation system of this embodiment, the large rotational energy generated by the second rotating body 2B and the third rotating body 4 is directly transmitted to the generator 6 of the power generator 1B. is improved, and the amount of power generated by the generator 6 is also increased accordingly.
Other structural actions and effects are the same as those of the first to third embodiments, so description thereof will be omitted.

(Example 5)
Next, a fifth embodiment of the invention will be described.
FIG. 19 is a plan view showing a fluid power generation system according to a fifth embodiment of the invention.
As shown in FIG. 19, the fluid power generation system of this embodiment differs from the above-described fourth embodiment in that a fourth rotor 4A is added to the fluid drive device 1A.
A fourth rotating body 4A of the fluid driving device 1A has the same shape as the third rotating body 4 of the fluid driving device 1A in the fourth embodiment, and a third resistance member 41 having the same structure as the second resistance member 40. are erected at predetermined intervals on the peripheral surface of the fourth rotating body 4A.
The fourth rotating body 4A is attached to one end portion 21a of the shaft portion 21 of the second rotating body 2B. Specifically, the one end 21a of the shaft portion 21 is set longer, and the fourth rotating body 4A is attached to this one end 21a, and the tip of the one end 21a is rotatably supported by a post 12D. supported.

Since the fluid power generation system of this embodiment has such a configuration, the third resistance member 41 receives fluid pressure to rotate the fourth rotor 4A. As a result, extremely large rotational energy is generated by the second rotating body 2B, the third rotating body 4 and the fourth rotating body 4A. A rotational force corresponding to this rotational energy is output to the output shaft 21b of the fluid drive device 1A and transmitted to the rotating shaft 60 of the generator 6. As shown in FIG.

In this embodiment, an example in which the fourth rotating body 4A is connected to the shaft portion 21 of the second rotating body 2B is shown. Either the one end portion 20a or the other end portion 20b of the shaft portion 20 of the first rotating body 2A may be connected instead of the shaft portion 21 . Alternatively, the two fourth rotating bodies 4A may be connected to either the one end 21a of the shaft portion 21 of the second rotating body 2B or the one end 20a or the other end 20b of the shaft portion 20 of the first rotating body 2A. or two, respectively. Further, as shown in FIG. 20, the three fourth rotors 4A are divided into one end 21a of the shaft portion 21 of the second rotor 2B and one end 20a of the shaft portion 20 of the first rotor 2A. , and the other end 20b.
Other configurations, actions and effects are the same as those of the first to fourth embodiments, so description thereof will be omitted.

(Example 6)
Next, a sixth embodiment of the invention will be described.
FIG. 21 is a schematic diagram showing the installation structure of the fluid power generation system according to the sixth embodiment of the present invention.
As shown in FIG. 21, the installation structure of this embodiment differs from the above-described first to fifth embodiments in that in the hydrodynamic power generation system 1, the auxiliary rotating body to be positioned on the lowest side is specified.
Specifically, the auxiliary rotating bodies 2C, 2E and 2G are brought into contact with the upper portion of the endless belt 3A, and the auxiliary rotating bodies 2D and 2F are brought into contact with the lower portion of the endless belt 3A. The most downstream auxiliary rotor 2H was fixed at a lower position than the other auxiliary rotors 2C to 2G, and the entire hydrodynamic power generation system was installed on the sea.

Here, the operation and effects exhibited by the installation structure of the fluid power generation system according to this embodiment will be described.
FIG. 22 is a schematic diagram for explaining the action and effect of this embodiment.
As shown in FIG. 22, when the hydrodynamic power generation system is installed with any auxiliary rotor 2F positioned at the lowest position, the first resistance member 30 located upstream of the auxiliary rotor 2F The fluid pressure applied to the group (the plurality of first resistance members 30 within the region L1 in the drawing) is very strong. On the other hand, the fluid pressure received by the group of first resistance members 30 located downstream of the auxiliary rotor 2F (the plurality of first resistance members 30 in the region L2 in the figure) is weak.
Therefore, in this installation structure, it is difficult to say that all the first resistance members 30 are efficiently receiving strong fluid pressure.

However, as shown in FIG. 21, in the installation structure of this embodiment, the most downstream auxiliary rotor 2H is fixed and installed at a lower position than the other auxiliary rotors 2C to 2G. Therefore, almost all first resistance members 30 are subjected to strong fluid pressure.
In other words, according to the installation structure of this embodiment, the force of the water flow can be obtained from as many first resistance members 30 as possible. Extremely large electric power can be generated.
Other configurations, actions and effects are the same as those of the first to fifth embodiments, so description thereof will be omitted.

(Example 7)
Next, a seventh embodiment of the invention will be described.
FIG. 23 is a schematic diagram showing an installation structure of a hydrodynamic power generation system according to a seventh embodiment of the invention.
As shown in FIG. 23, in the installation structure of this embodiment, the auxiliary rotator 2F positioned substantially in the center of the plurality of auxiliary rotators 2C to 2I is positioned higher than the other auxiliary rotators 2C to 2E and 2G to 2I. It differs from the sixth embodiment in that it is positioned downward.

Specifically, odd-numbered pairs of struts 13A (13B) to 19A (19B) are provided on the support 10, and odd-numbered auxiliary rotating bodies 2C to 2I are attached to the odd-numbered pairs of struts 13A (13B) to 19A (19B). It was attached so that it could move up and down freely. Then, the central auxiliary rotating body 2F was positioned at the lowest position and fixed to the strut 16A (16B). Further, the auxiliary rotating bodies 2C, 2E, 2G, and 2I are fixed to the supports 13A (13B), 15A (15B), 17A (17B), and 19A (19B) while being in contact with the upper portion of the endless belt 3A, The auxiliary rotating bodies 2D and 2H are fixed to the supports 14A (14B) and 18A (18B) while being in contact with the lower portion of the endless belt 3A.
In this embodiment, in order to facilitate understanding, an example in which an odd number of auxiliary rotors 2C to 2I are applied as a plurality of auxiliary rotors is shown, but the number of auxiliary rotors is not limited to an odd number. A structure in which an even number of auxiliary rotating bodies are applied and the substantially central auxiliary rotating body is positioned at the lowest position can also be applied as the installation structure of this embodiment.

FIG. 24 is a schematic cross-sectional view of a first resistance member applied to the installation structure of the fluid power generation system of this embodiment.
As shown in FIG. 24, the first resistance member 30 applied to this embodiment comprises a pressure receiving surface portion 31A formed of a flexible material and a support member 32 supporting the pressure receiving surface portion 31A. .
The pressure-receiving surface portion 31A may be made of any flexible material such as cloth, synthetic fiber, or synthetic resin. In this embodiment, the pressure-receiving surface portion 31A is made of cloth.
When fluid pressure is applied to the pressure-receiving surface portion 31A indicated by the solid line from the direction of the arrow indicated by the dashed-dotted line, the pressure-receiving surface portion 31A is bent by the fluid pressure as indicated by the dashed-dotted line and receives the fluid pressure like the sail of a yacht. . Further, when the direction of the fluid pressure changes in the direction indicated by the two-dot chain line, the pressure-receiving surface portion 31A in the one-dot chain line state bends in the fluid pressure direction as indicated by the two-dot chain line. get pressured.

FIG. 25 is a plan view showing a rotation direction converter applied to the installation structure of this embodiment.
As shown in FIG. 25, in the installation structure of this embodiment, a rotation direction converter 6A is provided between the fluid drive device 1A and the power generation device 1B.
Specifically, the rotation direction converter 6A is provided between the output shaft 21b of the fluid drive device 1A and the rotation shaft 60 of the generator 6. As shown in FIG. This rotation direction converter 6A can manually change the rotation direction of the output shaft 21b of the fluid drive device 1A and the rotation direction of the rotating shaft 60 of the generator 6 to the same direction or the opposite direction. Since all well-known converters can be applied as such a rotation direction converter 6A, description thereof is omitted here.

Next, the operation and effects of the installation structure of this embodiment will be described.
26A and 26B are schematic diagrams for explaining the operation of the installation structure of the hydrodynamic power generation system. FIG. ) indicates the operation when the direction of water flow is to the left in the figure.

As shown in (a) of FIG. 26, when the water flow direction is the right direction in the drawing, the group of first resistance members 30 (area L1 in the drawing) located on the left side (upstream) of the auxiliary rotor 2F The plurality of first resistance members 30) inside receives the fluid pressure, the first and second rotating bodies 2A and 2B and the endless belt 3A rotate counterclockwise, and the plurality of first resistance members 30 The whole also rotates counterclockwise integrally with the endless belt 3A.
In this case, the group of first resistance members 30 located on the right side (downstream) of the auxiliary rotor 2F receives almost no fluid pressure. Therefore, the rotational energy obtained by the fluid power generation system applied to this installation structure is due to the first group of resistance members 30 located on the left side (upstream) of the auxiliary rotor 2F.
However, when the direction of water flow changes to the left in the figure, the first resistance members 30 located on the right side of the auxiliary rotor 2F receive the fluid pressure.
In this case, the pressure-receiving surface portion 31 of the first resistance member 30 faces in the direction opposite to the direction in which the fluid pressure is received, so the rotational energy obtained when the direction of water flow changes is very small.

However, in the fluid power generation system with this installation structure, as shown in FIG. 24, the pressure receiving surface portion 31A uses the first resistance member 30 formed of a flexible material. As shown in , when the water flow direction is rightward, the pressure receiving surface portion 31A of the first resistance member 30 bends rightward, and the first resistance member 30 bent rightward reliably applies the fluid pressure. receive.
Then, as shown in FIG. 26(b), when the direction of water flow changes, the direction of the pressure receiving surface portion 31A of the first resistance member 30 changes, and the pressure receiving surface portion 31A of the first resistance member 30 changes its orientation to the right side of the auxiliary rotor 2F. One group of resistance members 30 (a plurality of first resistance members 30 within region L2 in the figure) reliably receives the fluid pressure.
In this case, the first group of resistance members 30 located on the left side of the auxiliary rotor 2F receives almost no fluid pressure. This is due to the group of first resistance members 30 located on the right side.

By the way, as shown in FIG. 23, in this embodiment, the central auxiliary rotor 2F is positioned below the auxiliary rotors 2C to 2E and 2G to 2I. The number of first resistance members 30 located and the number of first resistance members 30 located on the right side of the auxiliary rotating body 2F are substantially the same.
Therefore, the rotational energy obtained by the first resistance member 30 positioned on the left side of the auxiliary rotor 2F and the rotation obtained by the first resistance member 30 positioned on the right side of the auxiliary rotor 2F The energies are approximately the same.
That is, according to the installation structure of this embodiment, it is possible to always obtain substantially the same amount of rotational energy even if the direction of water flow changes.
Moreover, by using the rotational direction converter 6A shown in FIG. 25, the rotational energy obtained by the first resistance member 30 can be constantly converted into electricity by the generator 6. FIG.
Other configurations, actions, and effects are the same as those of the sixth embodiment, so description thereof will be omitted.

(Modification 4)
Next, a modification of the first resistance member 30 applied to the seventh embodiment will be described.
FIG. 27 is a perspective view showing a modification of the first resistance member 30 applied to the seventh embodiment.
As shown in FIG. 27, the first resistance member 30D of this modified example has a structure in which a pressure receiving surface portion 31A made of a flexible material is attached to a frame portion 32a.
In the first resistance member 30D of this modified example, a frame-shaped pressure receiving surface attachment portion 35 is arranged inside the frame portion 32a and joined to the frame portion 32a by a plurality of joint portions 32g. The pressure-receiving surface portion 31A is attached to the frame-like pressure-receiving surface attachment portion 35. As shown in FIG.
The support member 32 is composed of a frame portion 32a, an elongated fixed portion 32b, and four stoppers 34. As shown in FIG. The fixing portion 32b is fixed to the endless belt 3A, and the frame portion 32a is rotatably attached to the fixing portion 32b. Four stoppers 34 are attached to the edges of the endless belt 3A on both sides of the frame portion 32a.

Specifically, the frame portion 32a has leg portions 32d, 32d at both lower ends of the frame portion 32a. The fixed portion 32b is arranged so as to face the width direction of the endless belt 3A, and the rotary shaft 32b1 is rotatably inserted through the fixed portion 32b. Leg portions 32d, 32d of the frame portion 32a are fixed to exposed portions on both sides of the rotating shaft 32b1.
In other words, the frame portion 32a can rotate around the rotating shaft 32b1 of the fixed portion 32b.
The four stoppers 34 are arranged on both sides of the frame portion 32a. Each stopper 34 is fixed to the edge of the endless belt 3A with the opening 34a facing the leg 32d of the frame 32a.
The frame portion 32a is provided with four auxiliary leg portions 32e whose tip portions can be inserted into the stopper 34. As shown in FIG. That is, a pair of auxiliary leg portions 32e, 32e are provided on the side portions of the frame portion 32a and protrude in opposite directions on both sides near the joint position with the joint portion 32g. Each auxiliary leg portion 32 e is inclined from the vicinity of the joint position with the joint portion 32 g toward the stopper 34 side, and the tip portion thereof is positioned within the opening 34 a of the stopper 34 .
The length of each auxiliary leg portion 32e is such that when the frame portion 32a is perpendicular to the endless belt 3A, the tip of the auxiliary leg portion 32e is above the endless belt 3A by a predetermined height. length is set.

(Example 8)
Next, an eighth embodiment of the invention will be described.
FIG. 28 is a schematic diagram showing the main part of the installation structure of the fluid power generation system according to the eighth embodiment of the invention.
In the fluid power generation system applied to the installation structure of this embodiment, the mounting structure of the first resistance member 30 is different from that of the seventh embodiment.

As shown in FIG. 28, in the fluid power generation system having the installation structure of this embodiment, a plurality of first resistance members 30 are erected at regular intervals on the surface of the endless belt 3A so as to alternately face in opposite directions. It is Specifically, the plurality of first resistance members 30 are alternately arranged so that the pressure receiving surface portions 31 face in opposite directions.
As a result, the first resistance member 30, which is located on the left side of the auxiliary rotating body 2F and has a leftward pressure receiving surface portion 31, receives the fluid pressure in the direction indicated by the solid line arrow. The pressure can be received by the first resistance member 30 located on the right side of the auxiliary rotating body 2F and having a rightward pressure receiving surface portion 31 .

Since the first resistance member 30 in this embodiment is arranged as described above, even when it is used in a place where the flow changes, the entire hydrodynamic power generation system can The operation can be continued without changing the direction of the water flow direction.
Other configurations, actions and effects are the same as those of the seventh embodiment, so description thereof will be omitted.

(Example 9)
Next, a ninth embodiment of the invention will be described.
FIG. 29 is a perspective view showing the essential parts of a fluid power generation system applied to the installation structure according to the ninth embodiment of the invention, and FIG. 30 is a schematic diagram showing the essential parts.
In the fluid power generation system applied to the installation structure of this embodiment, the structure of the first resistance member 30' in the fluid drive device 1A is different from that of the seventh and eighth embodiments.

As shown in FIG. 29, the first resistance member 30' of this embodiment has a structure in which resistance members 30A and 30B having the same structure as the first resistance member 30 applied in the first embodiment are joined back to back. It has become. Specifically, the pressure receiving surface portion 31 of the resistance member 30A facing left in the figure and the pressure receiving surface portion 31 of the resistance member 30B facing right in the figure are joined back to back with an intermediate member 33 interposed therebetween.

Since the first resistance member 30' applied to this embodiment has the structure described above, as shown in FIG. ', the fluid pressure indicated by the solid line arrow can be received by the resistance member 30B on the left side of the first resistance member 30'.
Then, in the first resistance member 30' located on the right side of the auxiliary rotor 2F, the right resistance member 30A can receive the fluid pressure indicated by the two-dot chain line arrow.
As a result, even when used in a place where the flow changes, the operation can be continued without changing the orientation of the entire fluid power generation system according to the change in the direction of the flowing water.
Other configurations, actions, and effects are the same as those of the seventh and eighth embodiments, so description thereof is omitted.

(Modification 5)
Furthermore, a modification of the first resistance member 30' applied to the ninth embodiment will be described.
FIG. 31 is a perspective view showing a modification of the first resistance member 30' applied to the ninth embodiment, FIG. 32 is an exploded perspective view of this modification, and FIG. 1 is a side view showing the first resistance member of FIG.
As shown in FIGS. 31 to 33, the first resistance member 30E of this modification has a structure in which pressure receiving surface portions 31B and 31C are attached to both sides of a frame portion 32a.
Specifically, the back surface of the pressure receiving surface portion 31B is joined to a plurality of joining portions 32f and reinforcing portions 32c on one surface of the frame portion 32a. Then, while the pressure receiving surface portion 31C is placed back to back with the pressure receiving surface portion 31B, the rear surface thereof is joined to a plurality of joint portions 32f' protruding from the other surface of the frame portion 32a and to the reinforcing portion 32c.

(Example 10)
A tenth embodiment of the present invention will now be described.
FIG. 34 is a perspective view showing the installation structure of the fluid power generation system according to the tenth embodiment of the invention, and FIG. 35 is a schematic sectional view of the installation structure.
As shown in FIG. 34, in this embodiment, a protective cover 7 is attached to the fluid drive device 1A.

The protective cover 7 is a frame-like body that is open vertically. The upper half 7A of this protective cover 7 surrounds the part of the device above the sea surface S (see FIG. 35). Specifically, the upper half portion 7A is arranged so as not to be in contact with any of the plurality of first resistance members 30, and the first rotating body 2A, the second rotating body 2B and the auxiliary rotating body 2C are arranged. , 2E, 2G and a plurality of first resistance members 30 in the upper portion of the endless belt 3A.
In addition, the lower half 7B of this protective cover 7 surrounds only from both sides the part of the device that is completely submerged in the seawater. Specifically, openings 71 and 72 are provided in front and rear of the lower half portion 7B. Both sides of the lower half portion 7B are composed of the auxiliary rotating bodies 2D, 2F, and 2H completely submerged in the seawater and the plurality of first resistance members 30 in the lower portion of the endless belt 3A. It surrounds the device from both sides.
As a result, as shown by the arrows in FIG. 35, seawater flows into the protection cover 7 from the upstream opening 71, applies fluid pressure to the completely submerged first resistance member 30, and stretches the endless belt 3A. After being rotated, it flows out of the opening 72 on the downstream side.
Since the installation structure of this embodiment adopts such a configuration, the protection cover 7 protects the entire fluid drive device 1A from storm winds, rising water levels, and waves.
Other configurations, actions and effects are the same as those of the sixth and first to ninth embodiments, so description thereof will be omitted.

(Example 11)
Next, a ninth embodiment of the invention will be described.
FIG. 36 is a schematic cross-sectional view showing the installation structure of the fluid power generation system according to the eleventh embodiment of the invention.
As shown in FIG. 36, the installation structure of this embodiment differs from that of the tenth embodiment in that the protective cover 7 has an upper surface portion 70 .
Specifically, a dome-shaped upper surface portion 70 is formed on the upper edge 7 b of the protective cover 7 . As a result, the upper opening of the protective cover 7 is completely closed by the upper surface portion 70, so that the fluid drive device 1A is covered from the surroundings and above by the protective cover 7, and is completely protected from wind and waves.
Other configurations, functions and effects are the same as those of the tenth embodiment, so description thereof will be omitted.

(Example 12)
A twelfth embodiment of the present invention will now be described.
This embodiment illustrates a method of adjusting the power generation amount of a fluid power generation system.
FIG. 37 is a schematic diagram of a fluid power generation system applied to this embodiment.
As shown in FIG. 37, in the fluid power generation system of this embodiment, the struts 13A'(13B') to 18A'(18B') are similar to the struts 13A (13B) to 18A of the fluid power generation system of the first embodiment. It is set longer than (18B).
Specifically, the distance from the position where the lower part of the endless belt 3A is horizontal (the position of the two-dot chain line) to the lowest auxiliary rotating body 2F is D1, and the horizontal upper part of the endless belt 3A is set to each pillar. Assuming that the distance to the upper end (the position of the dashed line) of 13A'(13B')(14A'(14B') to 18A'(18B')) is D2, the distance D2 is set to be greater than or equal to the distance D1.

FIG. 38 is a schematic diagram showing how the power generation amount of the fluid power generation system is reduced.
In the state shown in FIG. 37, most of the first resistance members 30 on the lower portion of the endless belt 3A are completely submerged under the sea surface S, so the amount of power generated by the hydrodynamic power generation system is extremely large.
From this state, when the entire auxiliary rotating bodies 2C to 2H are raised along the struts 13A'(13B') to 18A'(18B'), the first and It is pulled up above the sea surface S from the first resistance member 30 near the second rotating bodies 2A and 2B. As the first resistance members 30 are lifted above the sea surface S, the number of the first resistance members 30 that receive the fluid pressure decreases. Therefore, the amount of power generated by the fluid power generation system gradually decreases as the auxiliary rotors 2C to 2H rise.
Then, as shown in FIG. 38, by raising the auxiliary rotating bodies 2C to 2H until the lowest auxiliary rotating body 2F comes above the sea surface S, the number of the first resistance members 30 completely submerged in the sea becomes As a result, the amount of power generated by the hydrodynamic power generation system is reduced to approximately the minimum amount.

FIG. 39 is a schematic diagram showing an increase state of the power generation amount of the fluid power generation system.
After decreasing the power generation amount of the fluid power generation system to the state shown in FIG. 38, when increasing the power generation amount, the entire auxiliary rotors 2C to 2H are lowered from this state. Then, the first resistance members 30 on the sea are completely submerged in the sea one by one. As the first resistance members 30 are completely submerged in the sea, the number of the first resistance members 30 that receive the fluid pressure increases. Therefore, the amount of power generated by the fluid power generation system increases as the auxiliary rotors 2C to 2H are all lowered.
Then, as shown in FIG. 39, by lowering the auxiliary rotors 2C to 2H and increasing the number of the first resistance members 30 completely submerged in the sea, the amount of power generated by the hydrodynamic power generation system reaches a desired amount. can be increased.

Normally, the amount of power generated by a hydrodynamic power generation system can be adjusted in response to changes in ocean current speed. However, according to this embodiment, as described above, it is possible to adjust the power generation amount without changing the ocean current simply by raising and lowering the entire auxiliary rotors 2C to 2H.

FIG. 40 is a schematic diagram showing a power generation stop state of the fluid power generation system.
When stopping the power generation operation of this fluid power generation system, as shown in FIG. 40, the entire auxiliary rotors 2C to 2H are raised to the highest position.
As a result, the lower portion of the endless belt 3A becomes horizontal, all the first resistance members 30 are separated from the sea surface S, and finally the power generation operation of the hydrodynamic power generation system is stopped.

FIG. 41 is a schematic diagram of a fluid power generation system showing a slack prevention mechanism, and FIG. 42 is a perspective view showing an endless belt 3A.
By the way, when the distance between the first rotating body 2A and the second rotating body 2B is short, the lower part of the endless belt 3A becomes horizontal when the auxiliary rotating bodies 2C to 2H are raised to the highest position. Probability is high. However, when the distance between the first rotating body 2A and the second rotating body 2B is long, as shown in FIG. 41, the lower portion of the endless belt 3A may slacken downward and not be horizontal. is high. Therefore, there is a risk that part of the first resistance members 30 will be completely submerged in the sea and the power generation operation will not stop.
In such a case, it is preferable to provide a slack prevention mechanism consisting of the magnet 36 shown in FIG. 41 and the magnetic body 3e shown in FIG.

Specifically, a plurality of magnets 36 are arranged above the position where the lower part of the endless belt 3A is horizontal (the position indicated by the two-dot chain line in FIG. 37), and the magnetic body 3e such as a metal plate is placed on the endless belt. It was attached to the inner surface of 3A to form a slack preventing mechanism.
Although the magnet 36 may be either an electromagnet or a permanent magnet, an electromagnet is used as the magnet 36 in this embodiment.

FIG. 43 is a schematic diagram showing the operating state of the slack prevention mechanism.
If the lower portion of the endless belt 3A is slackened downward as shown in FIG. 41 when all the auxiliary rotating bodies 2C to 2H are raised to the highest position, the slack prevention mechanism is driven. That is, the magnet 36 is energized by a power source (not shown). As a result, the endless belt 3A is lifted and the magnetic body 3e is attracted to the magnet 36. As shown in FIG. As a result, as shown in FIG. 43, the lower portion of the endless belt 3A is held horizontally, and the power generation operation of the fluid power generation system is stopped.

As shown in FIG. 41, whether the lifted endless belt 3A becomes slack and the power generation operation stops depends not only on the distance between the first and second rotating bodies 2A and 2B but also on the distance between the first and second rotating bodies 2A and 2B. It depends on the weight of the endless belt 3A to which one resistance member 30 is attached, the relationship between the first and second rotors 2A and 2B and the sea surface S, and the like, and cannot be assumed with certainty.
However, by providing the slack prevention mechanism, the power generation operation of the fluid power generation system can be reliably stopped.

The present invention is not limited to the above embodiments, and various modifications and changes are possible within the scope of the gist of the invention.
For example, in the fluid power generation system and the installation structure thereof according to the above-described embodiments and modifications, a tank-shaped hollow body capable of injecting and discharging fluid is exemplified as the floating body device of the floating device 5, but the shape and structure of the floating body device may vary. , but not limited to these. The floating device may have a shape and structure capable of attaching a support to which the fluid driving device and the power generating device are assembled and holding the fluid driving device and the power generating device above the fluid. The shape and structure are arbitrary.

REFERENCE SIGNS LIST 1 Fluid power generation system 1A Fluid driven device 1B Power generation device 2A First rotor 2B Second rotor 2C to 2I Auxiliary rotor 2a, 2b Linear groove 2c ... Hole 3A... Endless belt 3a... Linear projection 3b... Projection 3e... Magnetic body 4... Third rotating body 4A... Fourth rotating body 5... Floating body device 5A... Floating body fixture 5B Mooring tool 6 Generator 6A Rotation direction changer 7 Protective cover 7A Upper half 7B Lower half 7b Upper edge 10 Support 11A to 19A, 11B to 19B, 13A' to 18A', 13B' to 18B'... Support 20, 21, 27c to 27h... Shaft portion 21b... Output shaft 23... Knob 24... Long hole 30, 30', 30D, 30E... First resistance member 30A, 30B resistance member 31, 31A to 31C pressure receiving surface portion 32 support member 32a frame portion 32b, 60 rotation shaft 32b fixed portion 32c reinforcement portion 32d Legs 32e Auxiliary legs 32f, 32f', 32g Joints 33 Intermediate members 34 Stoppers 34a, 51, 71, 72 Openings 35 Pressure-receiving surface mounting portions 36 Magnets 40... Second resistance member 41... Third resistance member 52... Cavity 53... Linear member 53b... Free end 54... Fixed member 55... Tank 56... Plate body 61... Connecting member 70... Upper surface portion, B... Seabed, C... Mounting port, S, S1, S2... Sea surface, W... Seawater.

Claims (17)

A fluid drive device having an output shaft capable of outputting rotational force corresponding to fluid pressure, a power generation device that receives the rotational force of the output shaft of the fluid drive device to generate power, and these fluid drive device and power generation device A fluid power generation system comprising a floating device for holding above a fluid,
The fluid drive device is
a first rotating body rotatable around a horizontal central axis of rotation;
a second rotating body that is arranged side by side with the first rotating body and whose rotation center axis is parallel to the rotation center axis of the first rotating body;
an endless belt wound around the first rotating body and the second rotating body;
a plurality of first resistance members each having a concave pressure-receiving surface portion for receiving fluid pressure and erected at predetermined intervals on the surface of the endless belt;
The floating body is arranged between the first rotating body, the second rotating body, and the endless belt with the rotation center axis parallel to the rotation center axes of the first and second rotating bodies, and the floating body a plurality of auxiliary rotators vertically movably supported by a support fixed on the device,
The above power generator is
The rotating shaft of the generator receives the rotational force of the output shaft of the fluid drive device to generate power,
The above floating device is
a floating device to which the support is attached and the fluid driving device and the power generation device are assembled to the support;
one or more moorings for maintaining said floating device in place against drifting;
The fluid drive device is disposed above the floating device via the support,
The floating body of the floating body device is a hollow body that can be entirely submerged or floated in the fluid by injecting or discharging the fluid.
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
The mooring device of the floating device consists of a linear member having one end connected to the floating device and a fixing member attached to the other free end of the linear member,
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
A linear groove having a predetermined cross-sectional shape is provided on the peripheral surface of the first rotating body, the second rotating body, and the plurality of auxiliary rotating bodies, and the cross-sectional shape of the linear groove is the same as the cross-sectional shape of the linear groove. provided on the inner surface of the endless belt, linear projections that can be fitted with the linear grooves,
A fluid power generation system characterized by: In the fluid power generation system according to claim 3,
The linear grooves provided on the peripheral surfaces of the first rotating body and the second rotating body are set as rows of holes of the same shape, and the linear protrusions provided on the inner surface of the endless belt are set to row-shaped protrusions that have the same cross-sectional shape as the row-shaped holes and can be fitted into the row-shaped holes,
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
A plurality of second resistance members having pressure-receiving surface portions for receiving fluid pressure are erected on the circumferential surface at predetermined intervals, are rotatable integrally with the second rotating body, and have a central axis of rotation as described above. provided with a third rotating body as an output shaft,
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
A fourth rotating body having a plurality of third resistance members having a pressure-receiving surface portion for receiving fluid pressure and erected at predetermined intervals on a circumferential surface of the fluid driving device is arranged as a rotation center axis of the first rotating body in the fluid drive device. Or connected to at least one end side of the rotation center axis of the second rotating body,
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
The first resistance member is formed of the pressure receiving surface portion formed of a flexible material and a support member that supports the pressure receiving surface portion by standing it on the surface of the endless belt,
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
A plurality of the first resistance members are erected at predetermined intervals on the surface of the endless belt so that the pressure receiving surface portions are alternately directed in opposite directions,
A fluid power generation system characterized by: In the fluid power generation system according to claim 8,
Each of the first resistance members is composed of the pressure receiving surface portion having a substantially semicircular cross section and a support member for erecting the pressure receiving surface portion on the surface of the endless belt so that the pressure receiving surface portion faces the length direction of the endless belt. formed by
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
The first resistance member is formed of a pair of pressure receiving surface portions joined back to back, and a support member supporting the pair of pressure receiving surface portions so as to stand on the surface of the endless belt.
A fluid power generation system characterized by: In the fluid power generation system according to claim 10,
Each of the first resistance members is composed of a pair of pressure receiving surface portions each having a substantially semicircular cross section and a pair of pressure receiving surface portions such that the pair of pressure receiving surface portions are oriented in the longitudinal direction of the endless belt. is formed with the support member that stands on the surface of the endless belt,
The pair of pressure-receiving surface portions of each of the first resistance members are joined back-to-back so that the pair of pressure-receiving surface portions are oriented in opposite directions to each other,
A fluid power generation system characterized by: In the fluid power generation system according to claim 1,
A rotation direction converter that is arranged between the output shaft of the fluid drive device and the rotation shaft of the generator and is capable of converting the rotation direction of the rotation shaft of the generator with respect to the rotation direction of the output shaft of the fluid drive device to the same direction or the opposite direction. was established,
A fluid power generation system characterized by: A fluid power generation system installation structure for installing the fluid power generation system according to any one of claims 1 to 12 on a fluid, comprising:
One or more auxiliary rotating bodies among the plurality of auxiliary rotating bodies are positioned below other auxiliary rotating bodies and below the first rotating body and the second rotating body of the endless belt. The endless belt portion on the side is set to curve in a substantially V shape in the depth direction of the fluid,
Then, the first rotating body and the second rotating body are positioned above the fluid surface, and the plurality of first resistance members positioned on the curved lower endless belt portion are completely submerged in the fluid. (2) the floating device of the floating device is placed on or in the fluid, and the floating device is fixed at the placement position by the mooring device;
An installation structure for a fluid power generation system, characterized by: In the installation structure of the fluid power generation system according to claim 13,
The most downstream auxiliary rotator among the plurality of auxiliary rotators is positioned below the other auxiliary rotators,
An installation structure for a fluid power generation system, characterized by: In the installation structure of the fluid power generation system according to claim 13,
An auxiliary rotator positioned substantially in the center of the plurality of auxiliary rotators is positioned lower than the other auxiliary rotators,
An installation structure for a fluid power generation system, characterized by: In the installation structure of the fluid power generation system according to claim 13,
A protective cover is provided that surrounds at least a portion of the fluid driving device above the fluid surface and surrounds only from both sides a portion of the device that is completely submerged in the fluid.
An installation structure for a fluid power generation system, characterized by: In the installation structure of the fluid power generation system according to claim 16,
The protective cover has an upper surface that covers the fluid driving device from above,
An installation structure for a fluid power generation system, characterized by:

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