WO2023189288A1

WO2023189288A1 - Fluid power generation system and installation structure therefor

Info

Publication number: WO2023189288A1
Application number: PCT/JP2023/008603
Authority: WO
Inventors: 憲郎東福
Original assignee: 憲郎東福
Priority date: 2022-04-01
Filing date: 2023-03-07
Publication date: 2023-10-05
Also published as: JP2023152194A; JP7240798B1

Abstract

Provided are a fluid power generation system and an installation structure therefor, the fluid power generation system making it possible to not only achieve high power generation efficiency and a large amount of power generated by efficiently converting fluid energy into electric energy, but also to achieve a decrease in system installation costs and reduction in the burden of maintenance work even when used over deep water. A fluid power generation system 1 comprises a fluid drive device 1A, a power generation device 1B, and a fixing device 5. The fluid drive device 1A has first and second rotors 2A, 2B, an endless belt 3A, a first resistance member 30, and auxiliary rotors 2C to 2H. These are assembled onto a support body 10. The power generation device 1B receives rotation force of an output shaft 21b of the fluid drive device 1A via a rotating shaft 60 of a generator 6 and performs a power generation operation. The fixing device 5 comprises a fixed body 5A and first and second linking parts 5B, 5C. The support body 10 is maintained and fixed by the linkage of the first and the second linking parts 5B, 5C.

Description

Fluid power generation system and its installation structure

The present invention relates to a fluid power generation system and its installation structure that can efficiently convert fluid energy such as hydraulic power into electrical energy to increase power generation efficiency.

In recent years, as global environmental problems such as global warming have become more serious in addition to the depletion of fossil fuels, power generation devices and methods that use natural energy have been attracting attention. In particular, it is expected that its importance will further increase in the future due to the issue of CO2 emissions credits and the introduction of the RPS (Renewable Portfolio Standard) system.　　　

For example, solar power generation equipment that uses sunlight, which is a natural energy source, is easy to install and has relatively low power generation costs, so it has been widely used from rooftop power generation in homes and agricultural greenhouses to large-scale solar power plants such as mega solar power plants. Its spread is rapidly progressing to the scale of equipment.

Additionally, in addition to conventional fixed solar power generation devices, portable solar power generation devices are also attracting attention because they do not require installation work and can be easily transported and relocated. For example, Patent Document 1 discloses a portable solar power generation device that can be installed and used at any location without a power source, such as outdoors.

Specifically, a large number of electrically connected sheet-like or film-like photovoltaic sheets are stored in a storage case that can be stretched freely and carried around, and the user can remove them from the storage case at any location. By pulling out the solar power generation sheet, it is possible to efficiently use sunlight to generate electricity and use electrical equipment even outdoors where there is no power source.

In addition, many fluid drive devices have been proposed in which a generator is driven to generate electricity by using a fluid such as wind or hydraulic power as a working body to drive a drive device. For example, Patent Document 2 discloses a hydroelectric power generation device that is installed in a waterway such as a river or an agricultural waterway and uses water as a natural energy source.

Specifically, it has a main body consisting of two disc parts arranged opposite to each other and paddle parts attached radially at equal intervals from the central axis of the disc part, and the underwater paddle part receives water pressure. The configuration is such that the power generation device is driven using the rotational force obtained from the water shaft to which the paddle portion is connected.　　　　　　　　　　　　

However, in the solar power generation device disclosed in Patent Document 1 mentioned above, the amount of power generated depends on the weather and the amount of solar radiation, and it is stable only during the daytime when the amount of solar radiation is particularly large on a sunny day. The problem is that it cannot generate electricity.

On the other hand, in rivers, agricultural canals, etc. where the hydroelectric power generation device disclosed in Patent Document 2 is installed, the water volume is adjusted to maintain a predetermined flow rate each season, so a constant flow rate is continuously maintained. It is possible to secure it. Therefore, unlike solar power generation devices, the amount of power generated does not become unstable due to external factors such as solar radiation, and stable power generation is possible throughout the year.

However, the hydroelectric power generation device disclosed in Patent Document 2 is large, with a maximum diameter of about 1.4 m, and when installed in a shallow river or a slow-flowing river, for example, the paddle part can move the water wheel. The problem is that it cannot receive enough water pressure to rotate, making it impossible to generate the amount of power that was intended.

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, achieving high power generation efficiency and large amount of power generation without being affected by weather or solar radiation. A fluid power generation system that can stably obtain the following has been proposed.

Japanese Patent Application Publication No. 2006-86203 Japanese Patent Application Publication No. 2012-92750 Patent No. 6731561 Patent No. 6894556

In the fluid power generation systems proposed in Patent Document 3 and Patent Document 4 mentioned above, the support body is fixed to the bottom of the water, so when using it on shallow water, the cost of installing the fluid power generation system It doesn't take much time.
However, these fluid power generation systems have a problem in that when used offshore in deep water, it takes a huge amount of cost and time to install the system.
In other words, the deeper the water gets, the longer the support column needs to be, and the higher the position of the first rotating body, second rotating body, etc. of the fluid drive device. The more the support column becomes exposed to large water pressure, the more it becomes necessary for the support to have durability against the water pressure and stability for devices such as the first rotating body and the second rotating body. In order to meet such requirements, the structure of the support body and its pillars themselves must be strong and durable. Therefore, the cost spent on the fluid drive device itself becomes high. Additionally, the deeper the water gets, the more difficult it becomes to install the system, which leads to an increase in costs.
Furthermore, on the ocean, the position of the sea level rises and falls due to the phenomena of high and low tides. Therefore, in order to obtain a stable amount of power, the height of the system must be adjusted every time there is a high tide or low tide, which poses a problem in that maintenance work is troublesome.

This invention was made to solve the above-mentioned problems, and it not only makes it possible to efficiently convert fluid energy such as hydraulic power into electrical energy to obtain high power generation efficiency and large amount of power generation, but also enables It is an object of the present invention to provide a fluid power generation system and its installation structure that can reduce system installation costs and maintenance work burden even when used offshore.

In order to solve the above 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 in response to the rotational force of the output shaft of the fluid drive device. A fluid power generation system comprising a power generation device and a fixing device for fixing the fluid drive device and the power generation device assembled to a predetermined support body on a fluid, the fluid drive device having a first rotational speed. a second rotating body that is spaced apart from the first rotating body at a predetermined distance and whose central axis of rotation is parallel to the central axis of rotation of the first rotating body; the first rotating body and the second rotating body; an endless belt wound around the belt; a plurality of first resistance members each having a concave pressure receiving surface for receiving fluid pressure; and a plurality of first resistance members erected at predetermined intervals on the surface of the endless belt; It is disposed between the first rotating body, the second rotating body, and the endless belt with the central axis parallel to the rotational central axes of the first and second rotating bodies, and is vertically movable by the support. The power generating device includes a plurality of freely supported auxiliary rotating bodies, the power generating device includes a generator that generates electricity by receiving the rotational force of the output shaft of the fluid drive device with the rotating shaft, and the fixing device is provided with the bottom of the fluid, etc. A fixed body for fixing on the ground, a first connecting part provided on the upper part of the fixed body, and a second connecting part provided on the support body and connectable with the first connecting part. and one or more of the plurality of auxiliary rotating bodies is positioned lower than the other auxiliary rotating bodies, so that one or more of the plurality of auxiliary rotating bodies is positioned lower than the first rotating body and the second rotating body of the endless belt. Also, the lower endless belt part is curved in the depth direction of the fluid in a substantially dogleg shape, and the length of the lower endless belt part is set longer than the length of the upper endless belt part. The structure is as follows.
With this configuration, the fixed body of the fixing device is fixed on the ground such as the bottom of the fluid, and the first connecting part provided on the upper part of the fixed body and the second connecting part provided on the support body are connected. By connecting the fluid drive device and the power generation device supported by the support body, it is possible to fix the fluid drive device and the power generation device at a predetermined depth on the ocean.
At this time, since the portion of the endless belt below the first rotating body and the second rotating body of the endless belt is set to be curved in a substantially dogleg shape in the depth direction of the fluid, The first rotary body and the second rotary body are positioned above the fluid surface, and the fluid drive is performed so that the plurality of first resistance members in the curved lower endless belt portion are completely submerged in the fluid. equipment can be installed.
As a result, when the plurality of first resistance members completely submerged in the fluid receive 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. 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, and the generator performs a power generation operation.
In other words, according to the fluid power generation system of the present invention, the fluid power generation system can be operated in deep water by simply connecting the second connection portion provided on the support body to the first connection portion provided on the fixed body. Since it can be installed offshore, the installation cost of the system can be reduced.

A second invention is a fluid power generation system according to the first invention, in which the auxiliary rotary body located most downstream among the plurality of auxiliary rotary bodies is located below the other auxiliary rotary bodies.
With this 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 are strongly subjected to fluid pressure. The fluid pressure received by the plurality of first resistance members located downstream of the auxiliary rotating body located below is weak.
However, in this invention, the auxiliary rotary body located most downstream among the plurality of auxiliary rotary bodies is located below the other auxiliary rotary bodies. Therefore, almost all of the first resistance members can efficiently receive strong fluid pressure, and as a result, extremely large electric power can be generated.

A third invention is a fluid power generation system according to the first invention, in which an auxiliary rotating body located approximately in the center of the plurality of auxiliary rotating bodies is located below other auxiliary rotating bodies.
With this configuration, the plurality of first resistance members located upstream of the auxiliary rotating body positioned below receive fluid pressure, causing the first rotating body, the second rotating body, and the endless belt to rotate. I will do it. Therefore, for example, when fluid is flowing from left to right, the plurality of first resistance members located to the left of the auxiliary rotating body located below receive the fluid pressure, and the plurality of first resistance members located to the right receive the fluid pressure. The first resistance member receives almost no fluid pressure. However, when the fluid changes to flow from right to left, the plurality of first resistance members located on the right side of the auxiliary rotating body located below receive the fluid pressure, and the first resistance members located on the left side receive the fluid pressure. The plurality of first resistance members receive almost no fluid pressure. At this time, since the auxiliary rotating body located approximately in the center of the plurality of auxiliary rotating bodies is located below the other auxiliary rotating bodies, the first resistance member located on the left side of the auxiliary rotating body The number of first resistance members located on the right side of the auxiliary rotating body is approximately the same. Therefore, for example, by applying the first resistance member according to any one of the seventh to ninth inventions, the rotational energy obtained by the fluid pressure from the left and the rotation obtained by the fluid pressure from the right. The energy becomes almost the same, and even if the direction of the fluid changes, almost the same amount of rotational energy can always 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 rotational direction converter used in the tenth invention and the first rotational direction converter used in any of the seventh to ninth inventions are used. Preferably, a resistive member is applied.

A fourth invention is a fluid power generation system according to any one of the first to third inventions, wherein one of the first and second connecting parts has a bolt, and the other has a bolt hole. The first connecting portion and the second connecting portion are connected by fitting the bolt into the bolt hole and tightening the bolt with a nut.
With this configuration, by fitting the bolt into the bolt hole and tightening the bolt with the nut to connect the first connecting part and the second connecting part, the support body in which the fluid drive device and the power generation device are assembled can be formed. can be simply and easily installed at a desired position.

A fifth invention is a fluid power generation system according to any one of the first to third inventions, in which a linear groove having a predetermined cross-sectional shape is connected to a first rotating body and a second rotating body. and a configuration in which a linear protrusion is provided on the circumferential surface of the plurality of auxiliary rotating bodies, and a linear protrusion having the same cross-sectional shape as the linear groove and capable of fitting into the linear groove is provided on the inner surface of the endless belt. shall be.
With this configuration, when the first resistance member receives fluid pressure, the linear grooves are fitted into the linear protrusions, and the first rotating body, the second rotating body, the plurality of auxiliary rotating bodies, and the endless belt and rotate as one. In other words, if the endless belt is simply wound around a first rotating body, a second rotating body, and a plurality of auxiliary rotating bodies, the endless belt may shift laterally depending on the direction of fluid flow, causing the first rotation There is a risk that it may come off from your body, etc. However, in this 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 protrusion is wrapped around the linear protrusion of the first rotating body, etc. Since the endless belt is fitted into the groove, it will not come off from the first rotating body, etc., even if fluid pressure is applied in any direction.

A sixth invention is the fluid power generation system according to the fifth invention, in which the linear grooves provided on the circumferential surfaces of the first rotating body and the second rotating body are set as rows of holes of the same shape. , a configuration in which the linear projections provided on the inner surface of the endless belt are set as row-shaped protrusions that have the same cross-sectional shape as the row-shaped holes and can fit into the row-shaped holes. do.

A seventh invention is a fluid power generation system according to any one of the first to third inventions, wherein the first resistance member has a pressure receiving surface portion formed of a flexible material, and a pressure receiving surface portion that is endless. The structure includes a support member that stands up on the surface of the belt and supports it.
With this configuration, the first resistance member receives fluid pressure at the pressure-receiving surface portion facing the flow, and rotates the first rotating body and the second rotating body. When the flow direction of the fluid changes, the pressure receiving surface portion made of a flexible material bends in the flow direction. As a result, the pressure-receiving surface section receives fluid pressure, causing the first rotating body and the second rotating body to rotate.
In other words, according to the present invention, the direction of the pressure receiving surface of the first resistance member changes in accordance with a change in the direction of the fluid flow, so when the direction of the fluid flow changes, the fluid power generation system The fluid power generation system can continue to operate without having to move in accordance with the direction.

An eighth invention is the fluid power generation system according to any one of the first to third inventions, in which the plurality of first resistance members are connected to an endless belt such that the pressure receiving surfaces are alternately oriented in opposite directions. The structure is such that they are erected on the surface at predetermined intervals.
With this configuration, even if the fluid flow changes, the first resistance member having the pressure-receiving surface portion facing the flow direction captures the fluid pressure, so the fluid power generation system does not move in accordance with the flow direction. The operation of the fluid power generation system can be continued.

A ninth invention is a fluid power generation system according to any one of the first to third inventions, in which the first resistance member is connected to a pair of pressure receiving surfaces joined back to back, and a pair of pressure receiving surfaces joined to each other back to back. The pressure-receiving surface portion of the endless belt is formed with a support member that stands up on the surface of the endless belt and supports it.
With this configuration, even if the flow of the fluid changes, the pressure receiving surface of the pair of pressure receiving surfaces joined back to back, which faces the direction of the flow, captures the fluid, so that the fluid power generation system can be adapted to the direction of the flow. The fluid power generation system can continue to operate without having to move the system.

A tenth invention is a fluid power generation system according to any one of the first to third inventions, in which the output shaft of the fluid drive device is disposed between the output shaft of the fluid drive device and the rotating shaft of the generator. The configuration includes a rotation direction converter that can convert the rotation direction of the rotation shaft of the generator to the same direction or the opposite direction with respect to the rotation direction of the generator.
With this configuration, when there is no change in the flow direction of the fluid, the rotational direction of the rotational shaft of the generator with respect to the rotational direction of the output shaft of the fluid drive device can be set, for example, in the same direction by the rotational direction converter. can. When the flow direction of the fluid is reversed, the rotation direction of the rotation shaft of the generator can be set in the opposite direction with respect to the rotation direction of the output shaft of the fluid drive device using the rotation direction converter. That is, according to the present invention, the operation of the fluid power generation system can be continued without changing the direction of the fluid power generation system to match the flow direction of the fluid.

An eleventh invention is an installation structure for a fluid power generation system for installing a fluid power generation system according to any one of the first to tenth inventions on a fluid, which comprises a first rotating body and a first rotating body. The fixed body is placed at the bottom of the fluid, etc., so that the second rotating body is located above the fluid surface and the plurality of first resistance members located in the curved lower endless belt portion are completely submerged in the fluid. The fixed body is fixedly installed on the ground, and the second connecting part provided on the support body is connected to the first connecting part on the upper part of the fixed body.
With this configuration, when the plurality of first resistance members completely immersed in the fluid receive fluid pressure in the fluid, the first rotating body and the second rotating body around which the endless belt is wound are exposed to 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 a power generation operation.
In addition, since the first rotating body and the second rotating body are located above the fluid surface, the first rotating body, the second rotating body, and the endless belt portion that are on the fluid surface are not receive any resistance from As a result, the first rotating body and the second rotating body rotate efficiently.
Furthermore, since the lower endless belt portion submerged in the fluid is set longer than the upper endless belt portion, more first resistance members can be used to generate electricity.
In addition, if the fluid power generation system is installed in a place where there are low tide and high tide phenomena, such as on the ocean, there is a risk that the first and second rotating bodies and the endless belt will be completely submerged in the sea at high tide. be. When installing in a place where there is a risk of this, the height of the support body can be set higher than usual to ensure that the first and second rotating bodies and the endless belt are underwater even at high tide. You can prevent it from dying completely.
Furthermore, when installed in such a location, the sea level changes vertically due to the effects of ebb and flow, so the fluid drive device and the power generation device are affected by sea level changes. However, since the support body that supports the fluid drive device and the power generation device is fixed by the fixing device, the fluid drive device and the power generation device are not affected by vertical fluctuations in the sea level. In other words, the fluid drive device and the power generation device do not cause sideways movement or the like due to vertical movement of the sea surface, waves, etc., and continue to be located at the placement position.

A twelfth invention is the installation structure for a power generation system according to the eleventh invention, in which a connection portion between the first connection portion and the second connection portion is above the fluid surface.
With this configuration, the operation of connecting the second connecting part and the first connecting part can be performed not in the fluid but above the fluid surface. In this way, by performing the connection work between the second connection part and the first connection part above the fluid level, the connection work can be performed more easily than in the fluid, and the system installation Further cost reduction can be achieved.

A thirteenth invention is the installation structure for the power generation system according to the eleventh invention, in which the connection portion between the first connection part and the second connection part is below the fluid level.

A fourteenth invention is the installation structure for a power generation system according to the eleventh invention, wherein the first rotating body and the second rotating body are located above the water surface of the irrigation canal and are located in a curved lower endless belt portion. The second connecting part provided on the support body is connected to the first connecting part provided on the upper part of the side wall (fixed body) of the irrigation canal so that the plurality of first resistance members to be completely immersed in the irrigation canal. A connected configuration.

As explained in detail above, according to the first to fourteenth inventions, not only can fluid energy such as hydraulic power be efficiently converted into electrical energy to obtain high power generation efficiency and a large amount of power generation, but also it is possible to obtain high power generation efficiency and a large amount of power generation. Even when used in deep ocean, the system has excellent effects in that it can reduce installation costs and reduce the burden of maintenance work.
Specifically, when installing a fluid power generation system on a deep fluid such as offshore, the fixing body of the fixing device is fixed to the seabed at the installation location in advance, and the fluid drive device and power generation device are The support body with the assembled parts is carried to the installation position. Then, by aligning the second connecting part at the lower part of the support body with the first connecting part at the upper part of the fixed body and connecting these first and second connecting parts, the fluid drive device and the power generation device are assembled. The support body can be easily and fixedly installed on the ocean. As a result, the cost and time required to install the fluid power generation system can be reduced.
Furthermore, when installing on the ocean where high tides and low tides occur, the height of the support body on which the fluid drive device and power generation device are assembled should be set to match the height of the fluid surface at high tide. This makes it possible to obtain a stable amount of electric power without having to adjust the height of the fluid drive device or the power generation device every time there is a high tide or low tide, making the maintenance and management of the system very easy.

Furthermore, according to the second invention, fluid pressure can be ensured efficiently, and as a result, extremely large electric power can be generated.

Furthermore, according to the fifth and sixth inventions, it is possible to prevent the endless belt from coming off from the first rotating body or the like.

Further, according to the seventh to tenth inventions, even when the direction of the fluid flow changes, it is possible to continue the operation of the fluid power generation system without moving the fluid power generation system in accordance with the direction of the flow. can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a fluid power generation system according to a first embodiment of the present 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. It is a perspective view showing a 1st resistance member. 5 is a sectional view taken along the line BB in FIG. 4. FIG. FIG. 3 is an exploded perspective view for explaining the mounting state of each auxiliary rotating body. FIG. 3 is a perspective view showing how each auxiliary rotating body is attached. It is a perspective view which shows the state where the 1st connection part and the 2nd connection part of a fixing device were connected. It is a schematic diagram for explaining a method of installing a fluid power generation system on the ocean. It is a schematic diagram showing a state where a fluid power generation system is installed on the ocean. It is a schematic diagram for explaining depth setting corresponding to tides. FIG. 12 is a perspective view showing a first modified example of the fixing device, in which (a) of FIG. 12 shows a state before the first connecting part and the second connecting part are connected, and (b) of FIG. Shows the state after connection. It is a perspective view which shows the 2nd modification of a fixing device, (a) of FIG. 13 shows the state before connection of the 1st connection part and the 2nd connection part, and (b) of FIG. Shows the state after connection. It is a perspective view which shows the 3rd and 4th modification of a fixing device, (a) of FIG. 14 shows a 3rd modification, and (b) of FIG. 14 shows a 4th modification. It is a schematic diagram showing the installation structure of the fluid power generation system concerning the 2nd example of this invention. It is a schematic diagram for explaining the operation and effect of the second embodiment. It is a schematic diagram showing the installation structure of the fluid power generation system concerning the 3rd example of this invention. It is a schematic sectional view of the 1st resistance member applied to the installation structure of the fluid power generation system of the 3rd example. It is a top view which shows the rotational direction converter applied to the installation structure of 3rd Example. 20A and 20B are schematic diagrams for explaining the operation of the installation structure of the fluid power generation system. FIG. The operation when the direction is to the left in the figure is shown. FIG. 21 is a perspective view showing the main parts of a fluid power generation system according to a fourth embodiment of the present invention, in which (a) in FIG. 21 shows a first rotating body and a second rotating body, and (b) in FIG. shows an auxiliary rotating body, and FIG. 21(c) shows an endless belt. It is a sectional view showing a linear groove and a linear projection. FIG. 23A is a cross-sectional view showing a modified example of a linear groove and a linear protrusion; FIG. 23A shows a U-shaped cross section, and FIG. 23B shows a V-shaped cross section. FIG. 24 is a perspective view showing main parts of a fluid power generation system according to a fifth embodiment of the present invention, in which (a) in FIG. 24 shows a first rotating body and a second rotating body, and (b) in FIG. shows an auxiliary rotating body, and FIG. 24(c) shows an endless belt. It is a schematic diagram showing the main part of the installation structure of the fluid power generation system concerning the 6th example of this invention. It is a perspective view which shows the 1st resistance member applied to the installation structure based on 7th Example of this invention. It is a schematic diagram showing a fluid power generation system concerning a 7th example. It is a schematic diagram showing the installation structure concerning the 8th example of this invention. It is a perspective view showing a fluid power generation system and a floating object. It is a schematic diagram showing installation work of a fluid power generation system using a floating object. FIG. 2 is a schematic diagram showing a state in which a fluid power generation system is installed. FIG. 7 is an exploded perspective view showing a fluid power generation system according to a ninth embodiment of the present invention. It is a perspective view which shows the state where the fluid power generation system of 9th Example was installed. It is a schematic diagram of the fluid power generation system applied to a 10th example. FIG. 3 is a schematic diagram showing a state in which the amount of power generation of the fluid power generation system decreases. FIG. 2 is a schematic diagram showing an increase in the amount of power generated by the fluid power generation system. FIG. 2 is a schematic diagram showing a state in which power generation is stopped in the fluid power generation system. FIG. 2 is a schematic diagram of a fluid power generation system showing a slack prevention mechanism. It is a perspective view showing an endless belt. FIG. 3 is a schematic diagram showing the operating state of the loosening prevention mechanism. FIG. 3 is a schematic diagram showing a reinforced state of the support body. FIG. 7 is a perspective view showing another example of the shape of the support body.

Hereinafter, the best mode of this invention will be described with reference to the drawings.

(Example 1)
FIG. 1 is an exploded 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 fixing device 5.

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

Specifically, as shown in FIG. 2, in the support body 10,

pillars

11A and 12A of the same height are provided in the length direction of the endless belt 3A. Further, struts 11B and 12B are provided in the width direction of the endless belt 3A so as to face the

struts

11A and 12A. Further, a plurality of columns 13A to 18A are provided between these

columns

11A and 12A, and the same number of columns 13B to 18B are provided in the width direction of the endless belt 3A so as to face the columns 13A to 18A.
The

pillars

11A, 12A and the pillars 13A to 18A are connected by a horizontal reinforcing member 10A, and the

pillars

11B, 12B and the pillars 13B to 18B are connected by a horizontal reinforcing member 10B (not shown).

The first rotating body 2A has a shaft portion 20 as a rotation center axis, and both ends of the shaft portion 20 are rotatably attached to the upper end portions 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 rotation center axis like the first rotating body 2A. Both ends of the shaft portion 21 are rotatably attached to the upper ends of the

columns

12A, 12B.
In other words, the first rotating body 2A and the second rotating body 2B maintain a constant distance with the

shaft parts

20 and 21 being parallel, and the endless belt 3A is connected to the first rotating body 2B. 2A and the second rotating body 2B.
The endless belt 3A is a wide band-shaped body, and can be formed of a multilayered rubber member, synthetic resin, metal chain belt, or the like.

A plurality of first resistance members 30 are erected on the surface of this endless belt 3A.
FIG. 4 is a perspective view showing the first resistance member, and FIG. 5 is a sectional view taken along arrow BB in FIG.
As shown in these figures, each first resistance member 30 includes a pressure receiving surface portion 31 and a support member 32 that holds this pressure receiving surface portion 31.
The pressure receiving surface portion 31 is a portion for receiving fluid pressure, and is concave 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 the material of the pressure receiving surface portion 31 is arbitrary, in this embodiment, a concavely curved metal plate is used.
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 fixing portions 32b are fixed to the endless belt 3A with screws or the like.
The pressure receiving surface portion 31 is fitted into the frame portion 32a, and its upper end 31a and lower end 31b are fixed to the frame portion 32a.
That is, a plurality of first resistance members 30 are erected on the surface of the endless belt 3A at regular intervals with the concave pressure receiving surface portions 31 facing the length 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, 2B and the endless belt 3A, with shaft portions 27c to 27h as central axes (described later) being parallel to each other. It is arranged. These auxiliary rotating bodies 2C to 2H are supported by

pillars

13A, 13B to 18A, 18B of the support body 10 so as to be vertically movable.
FIG. 6 is an exploded perspective view for explaining the mounting state of each auxiliary rotating body 2C (2D to 2H), and FIG. 7 is a perspective view showing the mounting state of each auxiliary rotating body 2C (2D to 2H). be.
Specifically, as shown in FIG. 6, a long hole 24 extending from the upper end to the lower end of the support pillar 10 is formed in each of the support pillars 13A (14A to 18A) and 13B (14B to 18B). Both ends of the shaft portions 27c (27d to 27h) of each of the auxiliary rotating bodies 2C (2D to 2H) are rotatably fitted into the elongated holes 24, respectively.
The reinforcing material 10A and each of the pillars 13A (14A to 18A) are connected through the spacer 10C, and the reinforcing material 10B and each of the pillars 13B (14B to 18B) are connected to each other through the spacer 10D. It is being said. The protruding length of each spacer 10C (10D) is set to be larger than the thickness of the knob 23. In other words, as shown in FIG. 7, the gap G through which the knob 23 can pass is between the reinforcing material 10A and each of the pillars 13A (14A to 18A) and between the reinforcing material 10B and each of the pillars 13B (14B to 18B). is formed between. As a result, each auxiliary rotating body 2C (2D to 2H) can freely move up and down along the

columns

13A and 13B (14A, 14B to 18A, 18B) without being obstructed by the reinforcing

members

10A and 10B. It is now possible to do so.
Then, by tightening the

knobs

23, 23 to both ends of the shaft portion 27c (27d to 27h) protruding outward from the elongated hole 24, each auxiliary rotating body 2C (2D to 2H) is fixed at a predetermined height. I can do things.

In this embodiment, the heights of the auxiliary rotating bodies 2C to 2H are set as follows.
That is, as shown in FIG. 3, the auxiliary

rotating bodies

2C, 2E, and 2G are fixed to the top of the support columns 13A (13B), 15A (15B), and 17A (17B), respectively, and are attached to the upper part of the endless belt 3A. It is pressed against the inner surface. The auxiliary

rotating bodies

2D, 2F, and 2H are fixed to the lower positions of the pillars 14A (14B), 16A (16B), and 18A (18B), respectively, and are pressed against the inner surface of the lower part of the endless belt 3A. There is.
Further, as shown in the figure, the auxiliary rotating body 2F is fixed at the lowest position, and the lower part of the endless belt 3A is curved downward in a substantially dogleg shape. In other words, the length of the lower part of the endless belt 3A is set longer than the length of the upper part, so that more first resistance members 30 are arranged in the lower part of the endless belt 3A. It looks like this.

On the other hand, as shown in FIGS. 1 and 2, the power generation device 1B includes a generator 6, and a rotating shaft 60 of the generator 6 is directly connected to the output shaft 21b of the fluid drive device 1A by a connecting member 61. There is. Thereby, the rotating shaft 60 of the generator 6 receives the rotational force of the output shaft 21b of the fluid drive device 1A, so that the generator 6 performs a power generation operation.
In this embodiment, an example is shown 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 a connecting member 61, but a gear mechanism, a belt mechanism, etc. It can also be provided between the output shaft 21b and the rotation shaft 60 to change the rotation of the output shaft 21b and transmit it to the rotation shaft 60.

The fixing device 5 shown in FIG. 1 and the like is a device for fixing the fluid drive device 1A and the power generation device 1B assembled to the support body 10 on the ocean or the like.
The fixing device 5 includes a fixing body 5A, a first connecting portion 5B, and a second connecting portion 5C. The structure is such that the first connecting portion 5B and the second connecting portion 5C can be connected.
Specifically, the fixed body 5A is a columnar body that can be driven into the ground such as the seabed by piling or the like, and is made of a high-strength member. The number of fixed bodies 5A to be installed by driving into the seabed or the like is arbitrary, but four or more is preferable. Therefore, in this embodiment, the number of fixed bodies 5A was set to four.
The first connecting portion 5B is a flange-like member provided on the upper part of each fixed body 5A, and a plurality of bolts 51 are provided on the upper surface thereof to protrude upward. In this embodiment, the number of bolts 51 is set to six, but the number is arbitrary. In short, the number of bolts 51 may be determined so that the connection strength between the first connection part 5B and the second connection part 5C is greater than or equal to a desired value.
The second connecting portion 5C is also a flange-like member, and is attached to the lower part of each of the

columns

11A, 11B, 12A, and 12B of the support body 10. A number of bolt holes 52 corresponding to the bolts 51 of the first connecting portion 5B are bored at corresponding positions on the surface of the second connecting portion 5C.

FIG. 8 is a perspective view showing a state in which the first connecting portion 5B and the second connecting portion 5C of the fixing device 5 are connected.
When the fixing device 5 has the above configuration, as shown in FIG. 8, the four fixing bodies 5A of the fixing device 5 can be fixedly installed on the ground such as the seabed by piling or the like. Then, the bolt hole 52 drilled in the second connecting part 5C at the lower part of the pillar 11A (11B, 12A, 12B) is fitted into the bolt 51 of the first connecting part 5B, and the first and second connecting parts are connected. The

portions

5B and 5C can be brought into contact with each other. In this state, by tightening the bolt 51 with the nut 53, the first and second connecting

portions

5B and 5C can be connected.
In this way, by connecting the first and second connecting

parts

5B and 5C of the fixing device 5, the fluid drive device 1A and the power generation device 1B supported by the support body 10 can be connected to a predetermined location on the seabed at a predetermined depth. can be fixed in position.

Next, a method for installing the fluid power generation system 1 of this embodiment on the ocean will be described. Note that this description also specifically explains the installation structure of the fluid power generation system of the present invention.
FIG. 9 is a schematic diagram for explaining a method of installing a fluid power generation system on the ocean, and FIG. 10 is a schematic diagram showing a state where the fluid power generation system is installed on the ocean.

In this embodiment, as shown in FIG. 10, the fluid power generation system is installed such that the connection part C between the first connection part 5B and the second connection part 5C of the fixing device 5 is located above the sea level S. do.
Specifically, as shown in FIG. 9, the length of the fixed bodies 5A of the fixing device 5 is set longer than the depth from the seabed B to the sea surface S, and the four fixed bodies 5A are installed as desired. The first connecting portion 5B on the upper part of the fixed body 5A is positioned above the sea surface S.
On the other hand, in the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled, the lengths of the

struts

11A, 12A (11B, 12B) are set to be longer than the lengths of the

struts

13A, 13B (14A, 14B to 18A, 18B). The four second connecting portions 5C are set to be shorter than the lowest auxiliary rotating body 2F.
The underwater depth of the lower part of the endless belt 3A is determined by the lengths of the

struts

11A, 12A (11B, 12B), so the lengths of the

struts

11A, 12A (11B, 12B) depend on the installation conditions of the fluid power generation system. Determined by

The support 10 is towed by a carrier ship to the ocean where the fixed body 5A is installed. Then, at the installation location, the support body 10 is lifted by a crane or the like, and the positions of the four second connecting parts 5C are aligned with the positions of the four first connecting parts 5B protruding from the sea surface S. Thereafter, while lowering the support body 10, the bolt holes 52 of each of the second connecting parts 5C are fitted into the bolts 51 of each of the first connecting parts 5B. Then, by tightening bolts with nuts 53, the first connecting portion 5B and the second connecting portion 5C are connected.

By performing such a connection operation, the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled is stably fixed on the ocean by the fixing device 5, as shown in FIG.
In this state, the first rotating body 2A and the second rotating body 2B are located above the sea surface S, and the lower portion of the endless belt 3A curved in a dogleg shape is submerged in the sea.
As a result, the plurality of first resistance members 30 submerged in the sea receive fluid pressure from the seawater, so the first rotating body 2A and the second rotating body 2B rotate in the flow direction of the seawater. . 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 above the sea surface S The body 2B and the endless belt 3A rotate without being subjected to resistance from seawater.
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 a power generation operation.

As described above, according to this embodiment, even when working in deep ocean, simply connecting the first connecting part 5B on the upper part of the fixed body 5A and the second connecting part 5C of the support body 10, The support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled can be easily installed at a desired position on the ocean.
In particular, in this embodiment, the work of connecting the first connecting part 5B and the second connecting part 5C can be performed at a position above the sea surface, not under the sea, so that the installation work of the fluid power generation system is simplified. This can be done more simply and easily, and as a result, the cost and time of installation work can be significantly reduced.

Moreover, when compared with the conventional technique, in the conventional method, it was necessary to set the length of the

pillars

11A, 11B to 18A, 18B of the support body 10 to approximately the length of the water depth; According to an example, its length can be reduced by the length of the fixing body 5A of the fixing device 5. As a result, the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled can be made smaller and lighter, and the cost and time for installing the fluid power generation system can be reduced accordingly. Can be done. Furthermore, since the water flow surface that is received by the

pillars

11A, 11B to 18A, 18B of the support body 10 after installation becomes smaller, the stability of the installation structure is improved accordingly.

By the way, when a fluid power generation system is installed on the ocean, there is a risk that the fluid drive device 1A and the power generation device 1B will be affected by changes in sea level, waves, etc., and cause lateral shaking or the like. However, in the fluid power generation system 1 of this embodiment, the offshore support 10 and the fixed body 5A are connected by the first and second connecting

parts

5B and 5C, and the fluid drive device 1A and the power generation device 1B are assembled. Since the supporting body 10 is firmly fixed by the fixing device 5, there is almost no possibility that these devices will cause horizontal shaking or the like.

FIG. 11 is a schematic diagram for explaining depth setting corresponding to ebb and flow.
When installing a fluid power generation system on the ocean where there is a large tidal difference, as shown in FIG. The heights of the

columns

11A, 11B to 18A, 18B of the support body 10 are set higher than normal so that S2 is located below the first rotating body 2A and the second rotating body 2B.
Such settings can prevent problems during tides.

(Modification 1)
Here, a first modification of the fixing device will be described.
FIG. 12 is a perspective view showing a first modified example of the fixing device, and (a) in FIG. 12 shows the state before the first connecting part and the second connecting part are connected, and ( b) shows the state after connection.
As shown in FIG. 12(a), in this modification, in the fixing device 5, a plurality of bolt holes 52 are drilled in the first connecting portion 5B provided at the upper part of the fixing body 5A. Bolts 51 of the number corresponding to the bolt holes 52 of the first connecting portion 5B are provided to protrude downward at positions corresponding to the second connecting portions 5C attached to the pillars 11A (11B, 12A, 12B). ing.

With this configuration, the fixing device 5 allows the bolt 51 protruding from the second connecting portion 5C to be inserted into the bolt hole 52 of the first connecting portion 5B, as shown in FIG. 12(b). Thus, the first and second connecting

portions

5B and 5C can be connected.

(Modification 2)
Next, a second modification of the fixing device will be described.
FIG. 13 is a perspective view showing a second modified example of the fixing device, and (a) in FIG. 13 shows the state before the first connecting part and the second connecting part are connected, and ( b) shows the state after connection.
As shown in FIG. 13(a), in this modification, the fixing device 5 includes a fixed body 5A, a first connecting portion 5B provided on the upper part of the fixed body 5A, and struts 11A (11B, 12A, 12B), and a separate bolt 51' and nut 53.
Specifically, a plurality of bolt holes 52 are provided in each of the first connecting portion 5B and the second connecting portion 5C. The bolt holes 52 of the first connecting portion 5B and the bolt holes 52 of the second connecting portion 5C are drilled at corresponding positions, and the bolt holes 52 of the first connecting portion 5B and the bolt holes 52 of the second connecting portion 5C are drilled in corresponding positions, and the first The connecting portion 5B and the second connecting portion 5C can be brought into contact with each other.

By having the fixing device 5 configured in this way, as shown in FIG. By inserting the bolt 51' into the bolt hole 52 and tightening the bolt 51' with the nut 53, the first and second connecting

parts

5B and 5C can be connected.

(Modification 3)
Furthermore, third and fourth modified examples of the fixing device will be described.
FIG. 14 is a perspective view showing third and fourth modified examples of the fixing device, FIG. 14(a) shows the third modified example, and FIG. 14(b) shows the fourth modified example. .
In the third modification, as shown in FIG. 14(a), in the fixing device 5, a plurality of bolts 51 protruding from the upper surface of the fixing body 5A are used as the first connecting portions 5B. A number of bolt holes 52 corresponding to the bolts 51 of the first connecting portion 5B are drilled in the second connecting portion 5C attached to the support column 11A (11B, 12A, 12B).
In the fourth modification, as shown in FIG. 14(b), in the fixing device 5, a plurality of bolts 51 protruding from the lower surface of the struts 11A (11B, 12A, 12B) are connected to the second connecting portion. It is set as 5C. A number of bolt holes 52 corresponding to the number of bolts 51 serving as the second connecting portion 5C are bored in the first connecting portion 5B attached to the upper portion of the fixed body 5A.

(Example 2)
Next, a second embodiment of the invention will be described.
FIG. 15 is a schematic diagram showing an installation structure of a fluid power generation system according to a second embodiment of the present invention.
As shown in FIG. 15, the installation structure of this embodiment differs from the first embodiment in that the auxiliary rotating body to be positioned at the lowest position in the fluid power generation system is specified.
Specifically, the auxiliary

rotating bodies

2C, 2E, and 2G were brought into contact with the upper part of the endless belt 3A, and the auxiliary

rotating bodies

2D and 2F were brought into contact with the lower part of the endless belt 3A. Then, the auxiliary rotating body 2H located at the most downstream position was fixed at a lower position than the other auxiliary rotating bodies 2C to 2G, and the entire fluid power generation system was installed on the ocean.

Here, the functions and effects exhibited by the installation structure of the fluid power generation system according to this embodiment will be explained.
FIG. 16 is a schematic diagram for explaining the operation and effect of this embodiment.
In order to facilitate understanding, in FIG. 16, the columns 11A to 18A (11B to 18B) of the support body 10 and the reinforcing member 10A (10B), and the fixed body 5A of the fixing device 5 and the first The description of the connecting portion 5B and the second connecting portion 5C is omitted.
As shown in FIG. 16, when the fluid power generation system is installed with any auxiliary rotating body 2F located at the lowest position, the first resistance member 30 located upstream of the auxiliary rotating body 2F The fluid pressure that the group (the plurality of first resistance members 30 in region L1 in the figure) receives is very strong. On the other hand, the fluid pressure received by the first resistance member 30 group (the plurality of first resistance members 30 in region L2 in the figure) located downstream of the auxiliary rotating body 2F is weak.
Therefore, in this installation structure, it cannot be said that all the first resistance members 30 are efficiently receiving strong fluid pressure.

However, as shown in FIG. 15, in the installation structure of this embodiment, the auxiliary rotating body 2H located at the most downstream position is fixed and installed at a lower position than the other auxiliary rotating bodies 2C to 2G. Therefore, almost all of the 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 by as many first resistance members 30 as possible, and as a result, the fluid pressure due to the water flow can be efficiently ensured. It can generate extremely large amounts of electricity.
The other configurations, operations, and effects are the same as those of the first embodiment, so their description will be omitted.

(Example 3)
Next, a third embodiment of the invention will be described.
FIG. 17 is a schematic diagram showing an installation structure of a fluid power generation system according to a third embodiment of the present invention.
In addition, in FIG. 17, the description of the first connecting part 5B and the second connecting part 5C of the fixing device 5 is omitted.
As shown in FIG. 17, in the installation structure of this embodiment, the auxiliary rotary body 2F located approximately in the center among the plurality of auxiliary rotary bodies 2C to 2I is placed higher than the other auxiliary rotary bodies 2C to 2E, 2G to 2I. It differs from the first and second embodiments in that it is located lower.

Specifically, an odd number of pairs of columns 13A (13B) to 19A (19B) are provided on the support body 10, and an odd number of auxiliary rotating bodies 2C to 2I are provided on the support 10. ) so that it can move up and down.
Then, the central auxiliary rotating body 2F was positioned at the lowest position and fixed to the support column 16A (16B).
Further, the auxiliary

rotating bodies

2C, 2E, 2G, and 2I are fixed to the pillars 13A (13B), 15A (15B), 17A (17B), and 19A (19B) while being in contact with the upper part of the endless belt 3A, The auxiliary

rotating bodies

2D and 2H were fixed to the pillars 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 is shown in which an odd number of auxiliary rotating bodies 2C to 2I are applied as a plurality of auxiliary rotating bodies, but the number of auxiliary rotating bodies is not limited to an odd number. A structure in which an even number of auxiliary rotating bodies is applied and the auxiliary rotating body approximately in the center is positioned at the lowest position can also be applied as the installation structure of this embodiment.

FIG. 18 is a schematic cross-sectional view of the first resistance member applied to the installation structure of the fluid power generation system of this embodiment.
As shown in FIG. 18, the first resistance member 30 applied to this embodiment is composed of a pressure receiving surface portion 31A formed of a flexible material and a support member 32 that supports the pressure receiving surface portion 31A. .
The pressure receiving surface portion 31A may be made of any flexible material, such as cloth, synthetic fiber, synthetic resin, etc. 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 shown by the solid line from the direction of the arrow shown by the dashed-dotted line, the pressure-receiving surface portion 31A bends as shown by the dashed-dotted line due to the fluid pressure, and absorbs the fluid pressure like the sail of a yacht. receive. Furthermore, when the direction of the fluid pressure changes in the direction shown by the two-dot chain line, the pressure receiving surface portion 31A in the one-dot chain line bends in the fluid pressure direction, as shown by the two-dot chain line, and the fluid be under pressure.

FIG. 19 is a plan view showing a rotational direction converter applied to the installation structure of this embodiment.
As shown in FIG. 19, 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. This rotational direction converter 6A can manually convert the rotational direction of the output shaft 21b of the fluid drive device 1A and the rotational direction of the rotational shaft 60 of the generator 6 into the same direction or opposite directions. Since all known converters can be applied as such a rotational direction converter 6A, their description will be omitted here.

Next, the functions and effects exhibited by the installation structure of this embodiment will be explained.
FIG. 20 is a schematic diagram for explaining the operation of the installation structure of the fluid power generation system. FIG. ) indicates the operation when the water flow direction is to the left in the figure.
In addition, in FIG. 20, the description of the reinforcing member 10A (10B) of the support body 10 and the description of the first connecting part 5B and the second connecting part 5C of the fixing device 5 are omitted.

As shown in FIG. 20(a), when the water flow direction is rightward in the figure, the first resistance member 30 group located on the left side (upstream) of the auxiliary rotating body 2F (area L1 in the figure) The first and second

rotating bodies

2A, 2B and the endless belt 3A rotate counterclockwise as the plurality of first resistance members 30) located inside the body receive fluid pressure, causing the first and second

rotating bodies

2A, 2B and the endless belt 3A to rotate counterclockwise. The entire member 30 also rotates counterclockwise together with the endless belt 3A.
In this case, the first resistance member 30 group located on the right side (downstream) of the auxiliary rotating body 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 resistance member 30 group located on the left side (upstream) of the auxiliary rotating body 2F.
However, when the water flow direction changes to the left in the figure, the first group of resistance members 30 located on the right side of the auxiliary rotating body 2F receives fluid pressure.
In this case, since the pressure-receiving surface portion 31 of the first resistance member 30 is oriented in the opposite direction to the direction in which the fluid pressure is received, the rotational energy obtained when the water flow direction changes is extremely small.

However, in the fluid power generation system in this installation structure, as shown in FIG. 18, the pressure receiving surface portion 31A uses the first resistance member 30 formed of a flexible material. ), when the water flow direction is rightward, the pressure receiving surface portion 31A of the first resistance member 30 is bent to the right, and the first resistance member 30 group located on the left side of the auxiliary rotating body 2F is bent. (In the figure, the plurality of first resistance members 30 within region L1) reliably receive fluid pressure.
Then, as shown in FIG. 20(b), when the flowing water direction changes to the left, the direction of the pressure receiving surface portion 31A of the first resistance member 30 is bent to the left, and the direction is lower than that of the auxiliary rotating body 2F. The first resistance member 30 group located on the right side (the plurality of first resistance members 30 within region L2 in the figure) reliably receives fluid pressure.
In this case, the first resistance member 30 group located on the left side of the auxiliary rotary body 2F receives almost no fluid pressure, so the rotational energy obtained by the fluid power generation system with this installation structure is greater than that of the auxiliary rotary body 2F. This also depends on the first resistance member 30 group located on the right side.

By the way, as shown in FIG. 17, in this embodiment, the central auxiliary rotating body 2F is located below the auxiliary rotating bodies 2C to 2E and 2G to 2I, so The number of first resistance members 30 located on the right side of the auxiliary rotating body 2F is approximately the same as the number of first resistance members 30 located on the right side of the auxiliary rotating body 2F.
Therefore, the rotation energy obtained by the first resistance member 30 located on the left side of the auxiliary rotation body 2F and the rotation obtained due to the first resistance member 30 located on the right side of the auxiliary rotation body 2F. The energy is almost the same.
In other words, according to the installation structure of this embodiment, it is possible to always obtain approximately 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. 19, the rotational energy obtained by the first resistance member 30 can always be converted into electricity by the generator 6.
The other configurations, operations, and effects are the same as those of the first and second embodiments, so their description will be omitted.

(Example 4)
Next, a fourth embodiment of the invention will be described.
FIG. 21 is a perspective view showing main parts of a fluid power generation system according to a fourth embodiment of the present invention, and (a) of FIG. 21 shows a first rotating body 2A and a second rotating body 2B, FIG. 21(b) shows the auxiliary rotating bodies 2C to 2H, and FIG. 21(c) shows the endless belt 3A. Moreover, FIG. 22 is a sectional view showing a linear groove and a linear protrusion.
As shown in these figures, in the fluid power generation system of this embodiment, a pair of linear grooves 2a are provided in the first and second

rotating bodies

2A and 2B, and a pair of linear grooves 2b are provided in the auxiliary rotating body. Embodiments 2C to 2H are provided with a pair of linear protrusions 3a, and the endless belt 3A is provided with a pair of linear protrusions 3A, which is different from the first to third embodiments described above.

Specifically, as shown in FIG. 21(c), a pair of linear protrusions 3a are provided to protrude from the inner circumferential surface of the endless belt 3A. As shown in FIG. 22, each linear protrusion 3a has a U-shaped cross section.
On the other hand, as shown in FIG. 21(a), the pair of linear grooves 2a are formed on the outer circumferential surface of the first rotating body 2A (second rotating body 2B) and the pair of linear protrusions 3a. It is recessed at a position corresponding to the protruding position of. Furthermore, as shown in FIG. 21(b), the pair of linear grooves 2b are also formed on the outer circumferential surface of each auxiliary rotary body 2C (2D to 2H) and at the protruding positions of the pair of linear protrusions 3a. It is recessed in a position corresponding to the
As shown in FIG. 22, these

linear grooves

2a, 2b are formed in a U-shape in cross section, the same shape as the linear protrusion 3a.
That is, 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 protrusions 3a of the endless belt 3A It is set to fit into 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.

Note that the

linear grooves

2a and 2b can be formed by carving the outer peripheral surfaces of the first rotating body 2A (second rotating body 2B) and the auxiliary rotating bodies 2C (2D to 2H). However, it can also be formed by forming larger grooves on these outer peripheral surfaces and fitting a separate ring-shaped member having the

linear grooves

2a, 2b into the larger grooves. Moreover, the linear protrusion 3a can also be formed of a member separate from the endless belt 3A.
When the

linear grooves

2a, 2b and the endless belt 3A are formed of such members, it is preferable to use synthetic rubber, resin, or the like, which 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 of the endless belt 3A 3a is fitted into the pair of linear grooves 2a of the first rotating body 2A and second rotating body 2B and the linear grooves 2b of the auxiliary rotating bodies 2C to 2H, so that the linear protrusion The fitting force between 3a and the

linear grooves

2a and 2b acts against 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 cause lateral deviation and will not come off the first rotating body 2A or the like.
Other structural functions and effects are the same as those of the first to third embodiments, so their description will be omitted.

(Modification 4)
FIG. 23 is a cross-sectional view showing a modified example of linear grooves and linear protrusions, FIG. 23(a) shows a U-shaped cross section, and FIG. 23(b) shows a V-shaped cross section. shows.
The cross-sectional shapes of the

linear grooves

2a, 2b and the linear protrusion 3a are arbitrary. Therefore, in the above embodiment, the

linear grooves

2a, 2b and the linear protrusion 3a having a U-shaped cross section are illustrated, but the present invention is not limited thereto.
For example, as shown in FIGS. 23(a) and 23(b), those having a U-shaped cross section or those having a V-shaped cross section may also be used as the

linear grooves

2a, 2b and the linear protrusion 3a.

(Example 5)
Next, a fifth embodiment of the present invention will be described.
FIG. 24 is a perspective view showing the main parts of a fluid power generation system according to a fifth embodiment of the present invention, and (a) of FIG. 24 shows a first rotating body 2A and a second rotating body 2B, FIG. 24(b) shows the auxiliary rotating bodies 2C to 2H, and FIG. 24(c) shows the endless belt 3A.
As shown in these figures, in the fluid power generation system of this embodiment, a plurality of rows of holes 2c are provided in the first rotating body 2A (second It was provided on the outer peripheral surface of the rotating body 2B). Moreover, instead of the linear projections 3a, a plurality of row-shaped projections 3b are provided on the inner peripheral surface of the endless belt 3A. In the auxiliary rotary bodies 2C (2D to 2H), a pair of linear grooves 2b are provided on the outer peripheral surface of the auxiliary rotary bodies 2C (2D to 2H), similarly to the above 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 protrusion 3b of the endless belt 3A are set to be the same, and the protrusion 3b is fitted into the hole 2c. At the same time, by fitting into the linear groove 2b of the auxiliary rotating body 2C (2D to 2H), it is possible to prevent the endless belt 3A from coming off from the first rotating body 2A, etc.
Other structural functions and effects are the same as those of the first to fourth embodiments, so their description will be omitted.

(Example 6)
Next, a sixth embodiment of the invention will be described.
FIG. 25 is a schematic diagram showing the main parts of the installation structure of a fluid power generation system according to a sixth embodiment of the present 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 the mounting structure of the first resistance member 30 of the third embodiment.

As shown in FIG. 25, 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. has been done. Specifically, the plurality of first resistance members 30 are alternately arranged so that the pressure receiving surfaces 31 are oriented in opposite directions.
As a result, the first resistance member 30, which is located on the left side of the auxiliary rotary body 2F and has the left-facing pressure receiving surface portion 31, receives fluid pressure in the direction indicated by the solid arrow, and is positioned on the right side of the auxiliary rotary body 2F. The first resistance member 30 having the pressure receiving surface portion 31 facing right can receive fluid pressure in the direction indicated by the two-dot chain arrow.

Since the first resistance member 30 in this embodiment is arranged as described above, even when used in a place where the flow changes, the entire fluid power generation system can be The operation can be continued without having to change the direction of the water to match the change in the direction of water flow.
The other configurations, operations, and effects are the same as those of the third embodiment, so their description will be omitted.

(Example 7)
Next, a seventh embodiment of the present invention will be described.
FIG. 26 is a perspective view showing a first resistance member applied to an installation structure according to a seventh embodiment of the present invention, and FIG. 27 is a schematic diagram showing a fluid power generation system according to a seventh embodiment. .
In the fluid power generation system applied to the installation structure of this embodiment, the structure of the first resistance member in the fluid drive device 1A is different from the above six embodiments.

As shown in FIG. 26, 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 drawing and the pressure receiving surface portion 31 of the resistance member 30B facing right in the drawing are joined back to back via an intermediate member 33.　

Since the first resistance member 30' applied to this embodiment has the above-described structure, as shown in FIG. 27, the first resistance member 30' located on the left side of the auxiliary rotating body 2F At ', the fluid pressure indicated by the solid arrow can be received by the resistance member 30B on the left side of the first resistance member 30'.
In the first resistance member 30' located on the right side of the auxiliary rotating body 2F, the fluid pressure indicated by the two-dot chain arrow can be received by the right resistance member 30A.
As a result, even when used in a place where the flow changes, the operation of the fluid power generation system can be continued without changing the direction of the entire fluid power generation system in accordance with the change in the flow direction.
The other configurations, operations, and effects are the same as those of the sixth embodiment, so their description will be omitted.

(Example 8)
Next, an eighth embodiment of the present invention will be described.
FIG. 28 is a schematic diagram showing an installation structure according to an eighth embodiment of the present invention.
Depending on the conditions of the ocean area, it may be necessary to adopt a structure in which the first connecting portion 5B and the second connecting portion 5C of the fixing device 5 are connected underwater.
That is, as shown in FIG. 28, when it is necessary to position the connection part C between the first connection part 5B and the second connection part 5C below the sea surface S, the four fixed bodies 5A are The first connecting portion 5B is fixedly installed on the seabed B so that it is located underwater. At this time, the length of the struts 11A (11B, 12A, 12B) of the support body 10 is set to be long so that the second connecting portion 5C can be connected to the first connecting portion 5B in the sea. I'll keep it.
Then, at the installation location, the support body 10 is lifted by a crane or the like, and while the support body 10 is submerged in the sea, the four second connection parts 5C and the four first connection parts 5B in the sea are aligned. Thereafter, the installation work of the fluid power generation system is completed by performing the work of connecting the first connecting part 5B and the second connecting part 5C under the sea.

By the way, when lowering the support body 10 to the first connection part 5B of the fixed body 5A, if heavy equipment such as a crane is used, the support body 10 will cause horizontal sway, so the second connection part 5C It is difficult to align the position between the first connecting portion 5B and the first connecting portion 5B. Furthermore, the use of heavy equipment such as cranes results in high work costs.

Hereinafter, a method will be described in which the support body 10, on which the fluid drive device 1A and the power generation device 1B are assembled, is attached to a floating device, transported to an installation location, and the support body 10 is fixed using the floating device.

FIG. 29 is a perspective view showing the fluid power generation system and the floating object, FIG. 30 is a schematic diagram showing the installation work of the fluid power generation system using the floating object, and FIG. 31 is a diagram showing the installation work of the fluid power generation system using the floating object. It is a schematic diagram showing a state.

As shown in FIG. 29, the support body 10 is equipped with a floating object 5D having an attachment port F.
Specifically, a pair of rectangular parallelepiped tanks 55 are arranged in parallel, and the front and rear ends of the pair of tanks 55 are connected by a pair of plates 56, respectively.

The mounting port F is a square-shaped opening. The support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled can be fitted into the attachment opening F and fixed to the floating object 5D.

Thereby, the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled can be towed to the installation position by a tugboat or the like while attached to the floating object 5D.
Then, as shown in FIG. 30, at the installation location, seawater W is injected into the cavity of the floating object 5D through a water inlet (not shown). As the seawater W is injected into the cavity, the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled gradually sinks into the sea. After lowering the support 10 to just above the fixed body 5A while adjusting the position, the injection of seawater W into the floating object 5D is stopped. Then, as shown in FIG. 31, after the four second connecting parts 5C and the four underwater first connecting parts 5B are aligned, the first connecting parts 5B and the second connecting parts 5C are aligned. Connect with.
That is, according to this method, the support body 10 to which the fluid drive device 1A and the power generation device 1B are assembled can be towed to the installation location using the floating object 5D. Then, by gradually injecting seawater W into the cavity of the floating body 5D, it is possible to lower the support body 10 little by little to just above the fixed body 5A while preventing the support body 10 from rolling. At this time, unlike when suspended by heavy machinery such as a crane, there is almost no horizontal shaking of the support body 10, so it is necessary to align the four second connecting parts 5C with the four first connecting parts 5B in the sea. , can be easily done. As a result, the operation of connecting the first connecting part 5B and the second connecting part 5C can be performed accurately.

Note that the shape and structure of the floating object attached to the support body 10 are arbitrary. The floating body device may be of any shape and structure as long as it can be attached to the support body 10 like a swim bladder and the floating amount of the support body 10 can be adjusted by water injection and drainage, and the floating body device 5D described above may be used. It is not limited to the shape and structure of.
The other configurations, operations, and effects are the same as those of the first to seventh embodiments, so their description will be omitted.

(Example 9)

Next, a ninth embodiment of the invention will be described.
FIG. 32 is an exploded perspective view showing a fluid power generation system according to a ninth embodiment of the present invention, and FIG. 33 is a perspective view showing the installed state of the fluid power generation system of this embodiment.
This embodiment shows an example in which the fluid power generation system of the first embodiment is applied to an irrigation canal.

In FIG. 32, reference numeral 100 is a deep water channel, and reference numeral 5A' is a side wall serving as a fixed body.
Agricultural water W' is flowing between the pair of side walls 5A', and a support 10 on which a fluid drive device 1A and a power generation device 1B are assembled is installed above this water W'. .
Specifically, the four first connecting parts 5B are fixed to the upper surfaces of the pair of side walls 5A' so as to correspond to the second connecting parts 5C of the support body 10.
On the other hand, in the support body 10, the width between the

pillars

11A and 11B (12A, 12B) to which the second connecting portion 5C is attached is set to be the same as the width between the first connecting

portions

5B and 5B that straddle the irrigation canal. The width of the support body 10 excluding these

pillars

11A, 11B (12A, 12B) is set to be less than the width between the side walls 5A', 5A'.

As shown in FIG. 33, the support body 10 is fitted into the irrigation channel. Specifically, like the fluid power generation system of the above embodiment, the first and second

rotating bodies

2A and 2B are arranged above the water surface of the irrigation canal 100. The first resistance member 30 in the dogleg-shaped curved portion of the endless belt 3A is completely submerged in the water W' in the irrigation channel 100. Further, on the pair of side walls 5A', the bolt hole 52 of the second connecting part 5C of the support body 10 is fitted into the bolt 51 of the first connecting part 5B, and the bolt 51 is tightened with a nut 53. The second connecting portion 5C and the first connecting portion 5B are connected.
The other configurations, operations, and effects are the same as those of the first embodiment, so their description will be omitted.

(Example 10)
Next, a tenth embodiment of the present invention will be described.
This example illustrates a method for adjusting the amount of power generated by a fluid power generation system.
Note that for ease of understanding, illustrations of the

pillars

11A, 12A (11B, 12B) of the support body 10, the reinforcing member 10A (10B), and the fixing device 5 are omitted in FIGS. 34 to 40 below.
FIG. 34 is a schematic diagram of a fluid power generation system applied to this example.
As shown in FIG. 34, in the fluid power generation system of this embodiment, the struts 13A'(13B') to 18A'(18B') are the same as the struts 13A (13B) to 18A of the fluid power generation system of the first embodiment. (18B).
Specifically, the distance from the position where the lower part of the endless belt 3A is horizontal (the position indicated by the two-dot chain line) to the lowest auxiliary rotating body 2F is set as D1, and each If the distance to the upper end (position of the dashed line) of the pillars 13A'(13B')(14A'(14B') to 18A'(18B')) is D2, then the distance D2 should be greater than or equal to the distance D1. is set to

FIG. 35 is a schematic diagram showing a state in which the amount of power generation of the fluid power generation system decreases.
In the state shown in FIG. 34, most of the first resistance members 30 in the lower part of the endless belt 3A are completely submerged under the sea surface S, so the amount of power generated by the fluid power generation system is extremely large.
From this state, when the entire auxiliary rotating bodies 2C to 2H are raised along the support columns 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, 2B. Then, as the first resistance members 30 are raised above the sea surface S, the number of first resistance members 30 that receive fluid pressure decreases. Therefore, the amount of power generated by the fluid power generation system slowly decreases as the entire auxiliary rotating bodies 2C to 2H rise.
Then, as shown in FIG. 35, by raising the auxiliary rotors 2C to 2H until the lowest auxiliary rotor 2F is above the sea surface S, the number of first resistance members 30 completely submerged in the sea is reduced. , and the amount of power generated by the fluid power generation system is reduced to almost the minimum amount.

FIG. 36 is a schematic diagram showing an increase in the amount of power generated by the fluid power generation system.
When increasing the power generation amount after reducing the power generation amount of the fluid power generation system to the state shown in FIG. 35, the entire auxiliary rotating bodies 2C to 2H are lowered from the state shown in FIG. 35. . Then, the first resistance members 30 on the sea are completely submerged into the sea one after another. Then, as the first resistance members 30 are completely submerged into the sea, the number of first resistance members 30 that receive fluid pressure increases. Therefore, the amount of power generated by the fluid power generation system increases as the entire auxiliary rotating bodies 2C to 2H descend.
Therefore, as shown in FIG. 36, by lowering the auxiliary rotating bodies 2C to 2H and increasing the number of first resistance members 30 completely submerged in the sea, the amount of power generated by the fluid power generation system can be increased to a desired amount. It can be increased up to.

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

FIG. 37 is a schematic diagram showing a power generation stopped state of the fluid power generation system.
When stopping the power generation operation of this fluid power generation system, for example, as shown in FIG. 37, all the auxiliary rotating bodies 2C to 2H are raised above the position indicated by the dashed-dotted line in FIG. 34.
As a result, the lower portion of the endless belt 3A can be made horizontal, all the first resistance members 30 are removed from the sea surface S, and the power generation operation of the fluid power generation system is finally stopped.

FIG. 38 is a schematic diagram of a fluid power generation system showing a slack prevention mechanism, and FIG. 39 is a perspective view of an endless belt 3A.
By the way, if the distance between the first rotating body 2A and the second rotating body 2B is short, some of the auxiliary rotating bodies 2C to 2H (for example, the auxiliary

rotating bodies

2C, 2E, 2G ) is raised, the lower part of the endless belt 3A is likely to become horizontal. However, if the distance between the first rotating body 2A and the second rotating body 2B is long, the lower part of the endless belt 3A may loosen downward and not become horizontal, as shown in FIG. Highly sexual. Therefore, some of the first resistance members 30 may be completely submerged in the sea, and the power generation operation may not be stopped.
In such a case, it is preferable to provide a loosening prevention mechanism consisting of a magnet 36 shown in FIG. 38 and a magnetic body 3e shown in FIG. 39.

Specifically, a plurality of magnets 36 are arranged above and near the position where the lower part of the endless belt 3A is horizontal (the position indicated by the two-dot chain line in FIG. 34), and a magnetic body 3e such as a metal plate is It is attached to the inner surface of the endless belt 3A to form a loosening prevention mechanism.
The magnet 36 may be an electromagnet or a permanent magnet, but in this embodiment, an electromagnet is used as the magnet 36.

FIG. 40 is a schematic diagram showing the operating state of the loosening prevention mechanism.
When some of the auxiliary rotating bodies 2C to 2H are raised, as shown in FIG. 38, if the lower part of the endless belt 3A is slackened downward, the loosening prevention mechanism drive. 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 a result, as shown in FIG. 40, 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. 38, whether or not 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 It cannot be determined accurately because it depends on the weight of the endless belt 3A to which the first resistance member 30 is attached and the difference between the first and second

rotating bodies

2A, 2B and the sea surface S.
However, by providing a slack prevention mechanism, the power generation operation of the fluid power generation system can be reliably stopped.

Note that the present invention is not limited to the above embodiments, and various modifications and changes can be made within the scope of the gist of the invention.
For example, in the above embodiment, the second connecting portion 5C of the fixing device 5 is provided at the lower part of each of the

columns

11A, 11B, 12A, and 12B of the support body 10, so that the second connecting portion 5C can stand underwater. Although the fixing device 5 has a structure connected to the first connecting portion 5B on the upper part of the fixed body 5A provided as an example, the structure of the fixing device is not limited to this. The second connecting part 5C is provided not at the lower part of the pillars 11A (11B, 12A, 12B) of the support body 10, but at any arbitrary location such as the bottom or side of the support body 10, and Of course, it is also possible to have a structure in which it is connected to the connecting portion 5B.

Further, in the above embodiment, the reinforcing material 10A (10B) connects the

columns

11A, 12A (11B, 12B) and the columns 13A to 18A (13B to 18B) of the support body 10, and maintains the strength of the support body 10. are doing. However, the strength of the support body 10 can be further increased by connecting the

pillars

13A, 13B (14A, 14B to 18A, 18B) with separate reinforcement members. Furthermore, as shown in FIG. 41, by providing a separate fixing device 5' at the bottom of the support body 10, it is possible to ensure sufficient strength to withstand even when used in a place with strong ocean currents.

Further, in the above embodiment, the support body 10 is formed into a cage shape by the

support columns

11A, 12A (11B, 12B), the support columns 13A to 18A (13B to 18B), and the reinforcing material 10A (10B). The body structure is not limited to such a shape. For example, as shown in FIG. 42, a support 10' formed not in a cage shape but in a box shape made of a plate may also be applied. In other words, the support body may have any shape as long as it has a structure capable of supporting a fluid drive device or a power generation device, and any shape of the support body is included in the scope of the present invention.

1... Fluid power generation system, 1A... Fluid drive device, 1B... Power generation device, 2A... First rotating body, 2B... Second rotating body, 2C to 2I... Auxiliary rotating body, 2a, 2b... Linear groove, 2c ...hole, 3A...endless belt, 3a...linear protrusion, 3b...protrusion, 3e...magnetic material, 4...third rotating body, 4A...fourth rotating body, 5,5'...fixing device, 5A... Fixed body, 5A'... Side wall, 5B... First connecting part, 5C... Second connecting part, 5D... Floating body, 6... Generator, 6A... Rotation direction converter, 10, 10'... Support, 10A , 10B...Reinforcement material, 10C, 10D...Spacer, 11A to 19A, 11B to 19B, 13A' to 18A', 13B' to 18B'... Support column, 20, 21, 27c to 27h... Shaft part, 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 section, 31a... upper end, 31b... lower end, 32... Supporting member, 32a...Frame part, 32b, 60...Rotating shaft, 32b...Fixing part, 32c...Reinforcement part, 32d...Leg part, 32e...Auxiliary leg part, 32f, 32f', 32g...Joint part, 33...Intermediate member , 34... Stopper, 34a, 51, 71, 72... Opening, 35... Pressure receiving surface mounting part, 36... Magnet, 40... Second resistance member, 41... Third resistance member, 51, 51'... Bolt, 52 ... Bolt hole, 53... Nut, 55... Tank, 56... Plate, 61... Connecting member, 100... Irrigation channel, B... Seabed, C... Connecting part, F... Mounting port, G... Gap, S, S1, S2... Water surface, W, W'...water.

Claims

A fluid drive device having an output shaft capable of outputting rotational force corresponding to fluid pressure, a power generation device that generates electricity by receiving the rotational force of the output shaft of the fluid drive device, and these assembled to a predetermined support. A fixing device for fixing the fluid drive device and the power generation device on the fluid,
The above fluid drive device is
a first rotating body;
a second rotating body that maintains a predetermined distance from the first rotating body and whose central axis of rotation is parallel to the central axis of rotation of the first rotating body;
an endless belt wrapped around the first rotating body and the second rotating body;
a plurality of first resistance members, each of which has a concave pressure-receiving surface portion for receiving fluid pressure, and which are erected at predetermined intervals on the surface of the endless belt;
disposed between the first rotating body, the second rotating body, and the endless belt, with the rotational center axis being parallel to the rotational center axes of the first and second rotating bodies, and A plurality of auxiliary rotating bodies supported by a support body so as to be movable up and down;
The above power generation device is
A generator that receives the rotational force of the output shaft of the fluid drive device with a rotating shaft to generate electricity,
The above fixing device is
A fixing body for fixing on the ground such as the bottom of a fluid,
a first connecting part provided on the upper part of the fixed body;
a second connecting portion provided on the support and connectable to the first connecting portion;
One or more of the auxiliary rotating bodies among the plurality of auxiliary rotating bodies are positioned lower than the other auxiliary rotating bodies, so that the first rotating body and the second rotating body of the endless belt are lower than the other auxiliary rotating bodies. Also, the lower endless belt portion is curved in a substantially dogleg shape in the depth direction of the fluid, and the length of the lower endless belt portion is set longer than the length of the upper endless belt portion. The installation structure of a fluid power generation system,
The first and second rotary bodies are positioned above the fluid surface, and a plurality of first resistance members positioned at the curved lower endless belt portion hold the support body in the fluid. Place it on the fluid so that it is completely submerged,
The fixing body of the fixing device is set as a columnar body, and the lower end thereof is fixed on the ground such as the bottom of a fluid in deep ocean, etc., so that it is erected in the fluid,
fixing the support body at the arrangement position by connecting the first connection part provided at the upper end of the fixed body to the second connection part provided on the support body;
A connecting portion between the first connecting portion and the second connecting portion is above the fluid surface.
An installation structure for a fluid power generation system characterized by the following.
A fluid drive device having an output shaft capable of outputting rotational force corresponding to fluid pressure, a power generation device that generates electricity by receiving the rotational force of the output shaft of the fluid drive device, and these assembled to a predetermined support. A fixing device for fixing the fluid drive device and the power generation device on the fluid,
The above fluid drive device is
a first rotating body;
a second rotating body that maintains a predetermined distance from the first rotating body and whose central axis of rotation is parallel to the central axis of rotation of the first rotating body;
an endless belt wrapped around the first rotating body and the second rotating body;
a plurality of first resistance members, each of which has a concave pressure-receiving surface portion for receiving fluid pressure, and which are erected at predetermined intervals on the surface of the endless belt;
disposed between the first rotating body, the second rotating body, and the endless belt, with the rotational center axis being parallel to the rotational center axes of the first and second rotating bodies, and A plurality of auxiliary rotating bodies supported by a support body so as to be movable up and down;
The above power generation device is
A generator that receives the rotational force of the output shaft of the fluid drive device with a rotating shaft to generate electricity,
The above fixing device is
A fixed body for fixing on the ground;
a first connecting part provided on the upper part of the fixed body;
a second connecting portion provided on the support and connectable to the first connecting portion;
One or more of the auxiliary rotating bodies among the plurality of auxiliary rotating bodies are positioned lower than the other auxiliary rotating bodies, so that the first rotating body and the second rotating body of the endless belt are lower than the other auxiliary rotating bodies. Also, the lower endless belt portion is curved in a substantially dogleg shape in the depth direction of the fluid, and the length of the lower endless belt portion is set longer than the length of the upper endless belt portion. The installation structure of a fluid power generation system,
The support body is completely disposed within the irrigation channel, with the first and second rotating bodies located above the irrigation channel, and a plurality of first resistance members located in the curved lower endless belt portion. placed above the fluid so that it is submerged;
Applying the side wall of the irrigation canal as a fixing body of the fixing device,
The support body is fixed at the arrangement position by connecting the second connection part provided on the support body to the first connection part provided on the upper part of the side wall of the irrigation waterway.
An installation structure for a fluid power generation system characterized by the following.
In the installation structure of the fluid power generation system according to claim 1 or claim 2,
The auxiliary rotary body located most downstream among the plurality of auxiliary rotary bodies is located below the other auxiliary rotary bodies,
An installation structure for a fluid power generation system characterized by the following.
In the installation structure of the fluid power generation system according to claim 1 or claim 2,
An auxiliary rotating body located approximately in the center of the plurality of auxiliary rotating bodies is located below other auxiliary rotating bodies,
An installation structure for a fluid power generation system characterized by the following.
In the installation structure of the fluid power generation system according to claim 1 or claim 2,
One of the first and second connecting parts has a bolt, and the other has a bolt hole,
The first connecting portion and the second connecting portion are connected by fitting the bolt into the bolt hole and tightening the bolt with a nut.
An installation structure for a fluid power generation system characterized by the following.