JP2012017683A - Tidal power generation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such the problem that various kinds of tidal power generation have been developed, but since any of tidal power generation merely use a natural tidal stream as it is, there is a difference between the synchronous rotation number of a power generator, which is necessary to generate electricity, and the rotation number of the power generator, obtained from the tidal stream, and it appears that these kinds of tidal power generation are not actually utilized and are not widely used from the view point of cost-effectiveness, and further, since there is a change in the velocity of the tidal stream and the time due to the phases of the moon, and the power generator is more accurately operated by elemental forces, and thus a power generator which satisfies such conditions in view of overall efficiency of the power generator is necessary.SOLUTION: Horn-shaped cylindrical bodies are provided on both sides of a float body so that the power generator can be used at high and low tides. The area ratio of the inlet port of each cylindrical body to the outlet port is determined at, for example, ten times or more, so that the velocity of a tidal stream can be correspondingly increased and in order to increase the power generation efficiency, utilities are entirely operated by force of natural tidal stream. Thus, electricity is generated without being affected by the seafloor topography or the temporal variation of a tidal stream.

Description

The present invention relates to a tidal current power generation apparatus that takes in a tidal flow and generates power by using the force.

Various developments have been made for tidal power generators in search of inexpensive natural forces, all of which are natural tidal currents that can be used as they are. There is a divergence between and has not reached full-scale spread.

JP2009-114936

The present invention solves such problems, and aims to provide a tidal current power generation device that enables power generation using a tidal current that does not allow the generator to operate and that does not have a high flow velocity, and that can generate power even if the direction of the tidal current is reversed. To do.

In the present invention, a flow velocity amplifying device composed of a horn-shaped cylinder having a larger opening area on the tidal current introduction side than the opening area on the flow path side is connected to both ends of the flow path to the tidal current for operating the generator. It is.

By increasing the tidal current flow velocity in the device, it is possible to generate power by tidal current even at a point where the tidal current flow velocity is not fast, and it can be expected that the tidal power generation will be put to practical use.

The partially exploded perspective view which shows schematic structure of the tidal current power generation apparatus of this invention. Plan view Plan view The same plan AA sectional view Exploded perspective view of the main part Front view from the tidal side Same part plan Same part plan Same part plan Automatic flow rate amplifying device Direction control valve hinge part enlarged view (A) Side view of rotating body and partition plate (B) Plan view Schematic layout of important elements of the tidal current power generator of the present invention Rotating body Rotating body Angle control bracket Partial enlargement Rotating body Position change 45 degree figure

Embodiments of the present invention will be described below.
FIG. 1 shows the overall configuration. 1-A, 1-B, and 1-C are floating bodies equipped with a generator and the like, and tidal power is introduced as rotational force between the floating bodies 1-A and 1-B. A cylindrical body 6-A, which is a tidal current flow path for power generation with a rotating body (described later), is fixed, and a similar cylindrical body 6-B is fixed between the floating body 1-B and the floating body 1-C. ing. 2 and 3 are automatic flow velocity amplifying devices composed of horn-shaped cylinders that take in the tidal current with the larger opening area and increase the flow velocity by constricting within the device to move from the smaller opening area to the next channel. Introduce a tidal current. The side with the smaller opening area is connected to one of the openings of the cylinders 6-A and 6-B, respectively, and the tide is discharged from the cylinders 6-A and 6-B to the automatic flow rate amplifying devices 4 and 5 of the discharge function. It is designed to form a continuous flow path. The structure thus configured floats on the sea so as to be parallel to the direction of the tidal current, and is moored by sea anchors 15 fixed to the seabed. Floating bodies 1-A, 1-B, and 1-C are configured to have buoyancy that matches the overall weight in order to float the entire device. The automatic flow velocity amplifying devices 2 and 3 and the automatic flow velocity amplifying devices 4 and 5 are the devices that take in and discharge tidal currents. The tidal currents taken in by these devices are introduced into the next cylinders 6-A and 6-B and taken in as rotational force. Generate electricity. Attach the upper deck 7 with struts 10 for floating connection reinforcement and management work, and take a distance from the sea to avoid waves. 21 is a connecting part of floating bodies 1-A, 1-B, 1-C. A dust inflow prevention net 13 is installed at the entrance of the automatic flow velocity amplifying device 2, 3, 4 and 5 to remove the suspended matter to prevent the floating matter from entering the device. The sea anchor 15 and the floating bodies 1-A, 1-B and 1-C are connected by the mooring chain 16. Two mooring chains 16 are always provided to maintain a fixed angle of the floating bodies 1-A, 1-B, and 1-C, and the floating bodies 1-A, 1-B, and 1-C are installed so as to be parallel to the tidal current. . Two sea anchors 15 are installed before and after the flow when the direction of the tidal current is the direction of the arrow 11, and the sea anchor 15 is moored on the land by the land mooring chain 17 in order to stabilize the sea anchor 15 and make the installation cost easy and inexpensive. From the waterline 14, the top is the sea, the bottom is the sea, and the bottom. Reference numeral 8 denotes an opening provided in the automatic flow velocity amplifying apparatus 2, 3, 4 and 5, which will be described in detail later.

FIG. 2 is a plan view of the entire apparatus as viewed from above. FIG. 2 shows the shape of the tidal current power generation device of the present invention when the flow direction of the tide is in the direction of the arrow 11. However, if the state shown in FIG. Thus, the shape at the time of tide is as shown in FIG. The shape of the device is configured to change naturally using the power of the tidal current. The overall function is to receive the incoming tide with the automatic flow velocity amplifying devices 2 and 3, and the ratio of the inlet area to the outlet area is 10: 1. As shown in FIG. 4, the rotating body 23 provided in the cylinders 6-A and 6-B is regarded as a rotational force, and the rotational force is input to the generator 22 through the gear 24 to generate power. The flow path of the tidal current is increased from the flow speed inside the automatic flow speed amplifying apparatus 2 by the flow speed received by the automatic flow speed amplifying apparatus 2 from the flow current inflow side of the cylinder 6-A by the directional control valve 9 provided in the automatic flow speed amplifying apparatus 2. The rotational efficiency of the rotating body 23 introduced into the right side as viewed and incorporated in the cylindrical body 6-A is increased. The tidal current introduced into the cylindrical body 6-A is captured and used as a rotational force by the provided rotating body 23, and then guided to the automatic flow velocity amplifying device 5 and discharged. The tidal current received by the automatic flow velocity amplifying device 3 is used in the same manner and is guided from the cylindrical body 6-B to the automatic flow velocity amplifying device 4 and discharged. The two flow paths are supported by floating body main bodies 1-A, 1-B, 1-C divided into three bases and moored by a sea anchor 15. In the figure, the upstream and downstream sea anchors 15 are shown in the same state, but the entire apparatus is actually pulled by the upstream sea anchor 15. In the state of FIG. 2, the outer surface of the automatic flow velocity amplifying devices 4 and 5 on the downstream side has a great resistance for the tidal current flowing outside the floating bodies 1-A and 1-B, but is provided in the automatic flow velocity amplifying devices 4 and 5. The opening 8 is open and has a shape that allows the flow to pass through, thereby reducing the resistance to the flow. Another function provided in the automatic flow velocity amplifying devices 2, 3, 4 and 5 is the directional control valve 9, but the automatic flow velocity amplifying device 4 of the automatic flow velocity amplifying devices 2 and 3 for the inflow function and the automatic flow velocity amplification device 4 for the discharge function. , 5 shape of the directional control valve 9 is naturally changed by the power of the tidal current. The functional description of the opening 8 is shown in FIG. 8, and the functional description of the direction control valve 9 is shown in FIG. In FIG. 2, AA shows the position of the cross-sectional view for easy understanding of the connection between the floating bodies 1-A, 1-B, 1-C and the cylinders 6-A, 6-B. Is shown in FIG.

In FIG. 3, the shape at the time of tide, that is, the direction of the arrow 11 which is the direction of the tide is opposite to that in FIG. 2. The shape of each part of the device changes naturally with the power of the tidal current. In the case of FIG. 3, the sea anchor 15 at the bottom of the drawing pulls the entire apparatus. The function of each device is shown in FIG.

FIG. 4 is a cross-sectional view taken along line AA in FIG. As shown in the figure, the floating body main bodies 1-A, 1-B, 1-C are connected and reinforced by the floating body connecting portion 21 at the bottom, the floating body connecting portion 21 at the top, and the upper deck 7. The reason for providing the upper deck 7 is mainly to connect and reinforce the floating body 1-A, 1-B, 1-C, although the upper part of the deck 7 is used. No. No. 25 is the inner wall line. Reference numeral 21 denotes the upper and lower parts of the floating body connecting part. The force of the water flow amplified by the automatic flow velocity amplifying devices 2 and 3 and introduced into the cylinders 6-A and 6-B is converted into a rotational force by the rotating body 23, and is passed through the rotational speed adjusting gear 24 to pass through the floating body 1-A. , 1-B, 1-C Rotate the generator 22 but the generated electricity is subject to fluctuations with changes in the tidal current speed, so the voltage, frequency, power factor, etc. are adjusted to adjust the power company Devices that have to be connected to the system line and have the same functions are installed in the same manner, but are collectively referred to as the generator 22 here. The upper part of the gear 24 and the floating body 1-A, 1-B, 1-C is installed if necessary to cope with the need for tide prevention and wave protection. No. 0014 represents the draft line and introduces and uses the tidal current directly below the water surface. For each material, marine steel plates, stainless steel, non-ferrous metal materials / alloy materials, engineering plastics having high strength and durability, and plastic composite materials such as FRP and CFRP can be considered, but the object of the present invention can be achieved. If it is, it will not be limited.

In FIG. 5, the automatic flow velocity amplifying devices 2, 3 are removed by making the protective net 13 at the entrance easy to understand, and the upper deck 7 of the floating body 1-A, 1-B, 1-C is similarly written. The levels of the cylinders 6-A and 6-B and the levels of the floating body main bodies 1-A, 1-B and 1-C are shown in different angles for easy understanding. Each of the floating body 1-A, 1-B, 1-C is a ship and a cylinder 6-A, 6-B is attached between the three ships, and the cylinder 6-A, The automatic flow rate amplifying devices 2 and 3 are attached to 6-B to form independent flow paths.

FIG. 6 is a front view from the upstream of the tidal current flowing into the automatic flow amplifying devices 2 and 3, but the opening 8 is closed because the automatic flow amplifying devices 2 and 3 are in the shape of the water collecting function. The ratio of the inlet area to the outlet area of the automatic flow rate amplifying devices 2 and 3 is designed to be 10: 1 so as to increase the corresponding flow rate. Although it is the entrance of B, the code No. is used for easy understanding of the drawing. This is illustrated in Fig. 18. The sea anchor 15 is fixed to the bottom of the sea from the waterline 14 to the sea, and the bottom is the sea. The sea anchor 15 is moored by a land mooring chain 17 in order to make the installation of the sea anchor 15 easy and inexpensive. There are always two mooring chains 16 moored from the sea anchor 15 to the floating body 1-A, 1-B, 1-C. The cylinders 6-A and 6-B including the rotating body 23 for generating power from the automatic flow velocity amplifying devices 2 and 3 on the inflow side of the tidal current are all in a closed pipe state for increasing the flow velocity. 19 and 20 show the plate lines on the upper and lower sides of the automatic flow velocity amplifying devices 2 and 3 to show this.

FIG. 7 is an easy-to-understand bird's-eye view of the shape of the automatic flow velocity amplifying devices 4 and 5 when they are drained, that is, when they are located on the downstream side of the tidal current, except for the upper plate. Since the opening 8 has a shape at the time of the drainage function, the opening 8 passes through the tide, reduces the resistance value against the tide 11 flowing outside the floating body 1-A, 1-B, and reduces the load resistance required for the sea anchor 15. Reduce. FIG. 8 shows the operation of the blade 30 provided in the opening 8, and the angle of the blade shown in FIG. 7 is the stop angle at the time of opening.

FIG. 8 shows the operation of one of the openings 8 of the functions included in the automatic flow amplifying devices 2, 3, 4, and 5. The blade 30 of the opening 8 is hinged 29 to the part 28 of the automatic flow amplifying device. If it is attached and the direction of the tidal current is the direction of the arrow 27A (when it is in the water collection position), the blade 30 is in the dotted line position, the direction of the tidal current is changed, and the direction of the tidal current is shown in the direction of the arrow 27B (drainage position). If it changes, it will naturally move to the position of the solid line by the power of the tidal current. Explaining in detail, the flow of the tide changes every 6 hours, but there is a difference depending on the place, but it is generally reversed. Even if there is a slight difference, the present apparatus is fixed to the seabed by the sea anchor 15 and is drawn into it. Therefore, the direction of flow is always the direction of 27A and B shown in the figure. When 27A changes to 27B with a change every 6 hours, the blade 30 of the opening 8 and the automatic flow velocity amplifying device part 28 are pushed into the flow at the same time, and the automatic flow velocity amplifying device part 28 is fixed to the seabed by the sea anchor 15. Therefore, the automatic flow velocity amplifying device part 28 remains in its fixed state, and only the blade 30 of the opening 8 moves to the solid line position in the figure to form a drainage function, and the flow is passed through the opening 8 to resist the flow. Reduce the value. The moving blade 30 is stopped at the angle shown in the figure by the stopper 31 and stopped at that position until the tidal current change 6 hours later. When the flow is reversed after 6 hours, the reversed flow hits the part 28 of the automatic flow velocity amplifying device intentionally left between the openings 8 and 8 and the flow pushes the blades 30 of the opening 8 originally. Since the stop position is at the angle shown in the figure, the flow may directly hit the vane 30 and move smoothly from the solid line position to the dotted line position in the figure to change from the drainage function shape to the water collection function shape. The number and material of the stopper 31 are not limited as long as the stopper 31 stops the blade 30 at that position.

FIG. 9 illustrates the operating range of one direction control valve 9 having the functions included in the automatic flow velocity amplifying devices 2, 3, 4, and 5 and the engagement between the partition plate 33 and the rotating body 23 included in the cylinder 6-B. It is a thing. Looking at the plan view of the cylindrical body 6-B, the rotating body 23 is arranged so as to straddle the entire width of the two cylinders flowing in opposite directions, rather than having two partition plates 33 attached to one cylinder. The flow introduced into one side of each of the cylinders 6-B is rectified by the partition plate 33 so that the flow does not mix when the flow proceeds to turn the rotating body 23 and turn the next rotating body 23. This is repeated to increase the rotational efficiency of the entire rotating body 23. The partition plate 33 at the end of the cylindrical body 6-B is designed so as not to cause any inconvenience since the engagement with the directional control valve 9 occurs. FIG. 10 shows an enlarged view of the hinge portion of the directional control valve 9. For each number and material, marine steel plates, stainless steel, non-ferrous metal materials / alloy materials, engineering plastics with high strength and durability, and plastic composite materials such as FRP and CFRP can be considered, but the object of the present invention is achieved. It is not limited as long as it is possible. Also, the shape is not limited as long as it is possible to achieve the object of the present invention even if the shape is perforated, curved, etc.

FIG. 10 is an enlarged view of the directional control valve 9 incorporated in the automatic flow velocity amplifying device 3 that automatically moves the automatic flow velocity amplifying device 3 and the cylindrical body 6-B depending on the direction of the power flow. The solid line position 9 is the position where the automatic flow velocity amplifying device 3 receives the flow and introduces the flow into the cylinder 6-B of the next flow path, and the dotted line position of the directional control valve 9 is the automatic flow velocity amplification shown in FIG. This is the position of the directional control valve 9 at the time when the device 4 receives the tidal current and passes through the cylinder 6-B of the flow path and is discharged from the automatic flow velocity amplifying device 3 side. The directional control valve 9 is attached to a part 28 of the automatic flow amplifying device 28 by a hinge 32 that can be used in the sea. When the automatic flow amplifying device 3 receives a power flow, the flow received at the entrance is dotted with the part 28 of the automatic flow speed amplifying device. The tidal current flowing between the directional control valves 9 in the position shown in the figure pushes the directional control valve 9 in the direction of the solid line position and starts moving, so the hinge 32 is installed at a position slightly inside the corner 1 Stop at the same angle as -B and introduce the tidal current to one side of the next channel cylinder 6-B to increase the rotational efficiency of the rotating body 23 built in the cylinder 6-B. When the flow reverses after 6 hours, the flow hits between the floating body 1-B and the directional control valve 9 and pushes the directional control valve 9 in the direction of the dotted line in the figure, so it stops at the solid line position in the figure. The flow may directly hit the directional control valve 9 and move smoothly to the dotted line position. Since the directional control valve 9 moves to both the automatic flow velocity amplifying device 3 and the cylindrical body 6-B, the shape such as the height is designed so as not to hinder.

11A is a side view of the rotating body 23 and the partition plate 33 inside the cylinders 6-A and 6-B, but the cylinder 6-A has two flow paths that flow in opposite directions depending on time. From time to time, it is divided into a flow path that flows at a high speed and a flow path that does not. Since the flowing tides move differently, the rotation efficiency of the rotating body 23 is reduced when the tides are mixed. When a fine image is expressed, it is not an image that the partition plate 33 is provided in one cylinder, but an image of the rotating body 23 straddling two independent flow paths, and the partition plate 33 is also provided on each side supported by the rotating body 23. The gaps at both ends are also produced in such an image. FIG. 11 (B) is a plan view of the cylinders 6-A and 6-B, but rectification is performed by the partition plate 33 so that the tidal current that rotates the rotating body 23 is not mixed with the tidal current of other flow paths.

FIG. 12 is a schematic layout diagram of the rotating body 23 and the partition plate 33 mounted on the cylinders 6-A and 6-B, such as the generator 22 mounted on the floating body 1-A and 1-B1-C. Each quantity is not limited because it is determined by the capacity required for the entire apparatus. The portion where 26 is written in the floating body 1-C is the entire spare space.

FIG. 13 shows a rotating body 23 that takes in the tidal force as a rotational force. When the tidal force is received by the angle control fitting 36 fixed to the core pipe 34, the tactile force is received in a fixed state. When going to the flow, change the angle, reduce the resistance value and increase the rotation efficiency. The angle of the tip of the water flow receiving plate 35 is a device for allowing the water flow receiving plate 35 to quickly reach the fixed position during rotation. The support part may be both ends or may be one-sided support so long as it satisfies the object of the invention. The same applies to each material.

FIG. 14 is an enlarged view of the central portion of the rotating body 23. A round bar 37 is supported at both ends while being fixed to an angle control fitting 36 fixed to the core pipe 34, and a round pipe 38 supported at both ends is fitted into a water flow receiving plate 35. The flow is strongly received at the solid line position of 35 and the resistance value is reduced at the dotted line position. The inner diameter of the round pipe 38 is larger than the outer diameter of the round bar 37, and is free to move. In order to make the drawing easy to understand, the position where the water flow receiving plate 35 is strongly subjected to the flow force is indicated by a solid line in the drawing, and the position where the angle is changed and the resistance value is reduced when rotating and moving toward the flow is indicated by a dotted line 39.

FIG. 15 is a diagram showing what position the blade of the water flow receiving plate 35 of the rotating body 23 changes every time it rotates 45 degrees. If you look at the water catch plate 35 marked with ★, you can see it well. FIG. ~ 8. And around 1. Return to and cycle forward. Here, the case where the direction of the tidal current is the direction of the arrow 11 is shown.

As described above, the number of floating bodies, the number of cylinders, and the like can be freely changed, and can also be changed depending on the ratio of the opening areas at both ends of the automatic flow velocity amplifying devices 2, 3, 4, and 5. As for the material, marine steel plates, stainless steel, non-ferrous metal materials / alloy materials, engineering plastics having high strength and durability, and plastic composite materials such as FRP and CFRP can be considered, but the object of the present invention can be achieved. If it is not limited.

1-A Floating body main body
1-B Floating body main body
1-C Floating body body
2 Automatic flow velocity amplifying device One side-Connected to the left cylinder 6-A when viewed from the main body
3 Automatic flow velocity amplifying device One side-Connected to the right side cylinder 6-B when viewed from the main body
4 Automatic flow velocity amplifying device One side-Viewed from the main body, connected to the left cylinder 6-B
5 Automatic flow velocity amplifying device One side-Viewed from the right side Connected to the cylinder 6-A 6-A Rotating body equipped Cylindrical body 6-B Rotating body equipped Cylindrical body
7 Upper deck
8 Automatic flow rate amplifier Opening (generic name)
9 Automatic flow rate amplifying device Directional control valve
10 props
11 Arrows indicating the direction of tide flow
13 Net for preventing inflow of garbage
14 water line
15 Sea anchor
16 Sea anchor and floating body mooring chain
17 Sea anchor and land mooring chain
18 Outlet of automatic flow amplifier 2 and 3
19 Automatic flow rate amplifying device Trumpet-shaped cylinder Upper plate line
20 Automatic flow velocity amplifying device Trumpet-like cylindrical body Lower plate line
21 Floating body joint top and bottom
22 Generator (including control equipment such as power conditioner)
23 Rotating body
24 Speed adjustment gear
25 Floating body wall line
26 Spare space for upper deck equipment, spare space for generators included
27 Current direction, angle
28 A part of automatic flow amplifier
29 Automatic flow amplifying device Opening hinge
30 Automatic flow rate amplifying device Opening blade (solid line-open, dotted line-closed)
31 Automatic flow rate amplifier Opening stopper
32 Automatic flow rate amplifying device Directional control valve
33 Partition
34 Rotating core pipe
35 Rotating body Water flow receiving plate Position to receive strong flow force
36 Rotating body Angle control bracket attached to the core pipe
37 Round bar fixedly attached to angle control bracket fixed to rotating body
38 Rotating body Round pipe attached to water flow receiving plate (Inner diameter> Diameter of round bar attached to core pipe)
39 Rotating body Water flow receiving plate Resistance reduction position

The present invention is a device that captures the flow of tides and generates power, but the invention aims to increase the efficiency of power generation in order to fill the gap between the natural flow rate and the speed required by the power generation person. It is a product that has simultaneously obtained a reduction in resistance to mooring.

Various tidal current power generation devices have been developed in search of cheap natural power, but none of them is a device that has sought true efficiency. Natural power flow of tidal currents, generator performance, There seems to be no full-fledged dissemination because there are no things that fully satisfy the conditions such as the place where it can be installed.

Tidal current power generation is easier in places where the flow speed is faster, but such places are limited and are important places for ship traffic. It is difficult to permit installation, and the higher the flow rate, the more difficult the installation work is expected. Subtle time shifts in the reversal of high tides every 6 hours, time shifts due to tide conditions such as high tides and low tides at the same location, etc. Is almost unknown to the world and is presumed to be a barrier to the spread of tidal power generation. The present invention solves these problems, and if tidal power generation is not possible even at places where the flow velocity is moderate and off the important points of ship traffic, tidal current power generation will not be fully spread. It is.

Although the present invention increases the flow velocity, it has a structure that operates by catching both inversion of tidal current to increase the operating time of the device, but the shape for having both a water collecting function and a draining function mooring the device This is a tidal current generator that aims to solve the problems by increasing the flow rate of the device, reducing the resistance value to the anchor, and improving the efficiency of the device because it makes the device difficult to design due to the large resistance of the anchor.

By increasing the flow velocity of the tidal current within the device, it is possible to generate power by the tidal current even if the flow velocity of the tidal current is not fast, and it is expected that the installation of the device will not hinder important traffic points, and the resistance value of the device will be reduced. It is expected that the equipment can be installed easily and inexpensively by the reduction, and the practical application of tidal current power generation will be greatly advanced.

Embodiments of the present invention will be described below.
Fig. 1 is a diagram showing the overall configuration. The tidal current is taken in on both sides of the cylinders 6-A and 6-B equipped with a rotating body that takes in the tidal current force as a rotational force. An automatic flow velocity amplifying device that has a function of discharging the gas is provided with reference numerals 2, 3, 4, and 5 to form an independent flow path. The entire channel is supported by floating bodies 1-A, 1-B, 1-C, which are constructed so as to float on the sea, in order to use the tidal current with a high flow velocity directly below the sea surface. Moored by an anchor 15 fixed to the seabed. The whole is anchored by a mooring chain 17 from the land in order to install the anchor 15 upstream and downstream of the flow so as to be parallel to the direction of the tidal flow investigated in advance and to install the anchor 15 easily and inexpensively. There are always two mooring chains 16 connecting the anchor 15 to the floating body to maintain the angle. Reference numeral 11 denotes an arrow indicating the direction of the tidal current, and reference numeral 13 denotes a dust inflow prevention net for preventing floating substances flowing on the sea from flowing into the apparatus. Reference numeral 14 is a floating waterline, the sea above the bottom and the sea below and the sea below and the sea bottom. Equipped with a deck on the upper part of the floating body with the support column 10, it is used for connection assistance and management work etc. of the floating body. The floating body is connected mainly by the upper and lower connecting portions 21 but is assisted by the upper deck 7. Reference numeral 8 is an opening of the device provided in the automatic flow velocity amplifying device. However, the water collecting side is closed and the flow rate is increased by collecting and squeezing the flow, and the drainage side is opened by the power of the natural tide. However, since this figure is a figure, only the position is shown, and the shape will be described in detail in the plan view from FIG. 2 later. Other detailed functional aspects will be described sequentially with reference to the drawings.

FIG. 2 is a plan view of the entire apparatus as viewed from above. Although the outline of the apparatus has been described with reference to FIG. 1, the plan view can better understand the gist of the present invention. It is a figure at the time of the arrow 11 which shows the flow direction of the tide of the upper part of a figure. First, the tidal current that has flowed into the automatic flow velocity amplifying apparatus 2 that automatically becomes the shape at the time of collecting water and that has a shape that closes the opening 8 is accelerated by the function of the device and introduced into the cylindrical body 6-A of the next channel. Then, the flow force of the tidal current is taken in and used as a rotational force, introduced into the automatic flow velocity amplifying device 5 in the shape of the drainage of the next flow path, and discharged from there. The flow path is configured in this way, but this figure shows that the two flow paths flowing from the other automatic flow rate amplifying device 3 to the cylinder 6-B and flowing through the automatic flow rate amplifying device 4 float on the sea. 1-A, 1-B, 1-C is a tidal current power generation device supported by three boats, and its floating body moored by sea anchors 15 installed upstream and downstream of the tidal current, respectively. The tidal current that has flowed outside the automatic flow rate amplifying devices 2 and 3 wraps around along the outside surface of the device and flows just outside the floating body 1-A, 1-B and hits the outside surface of the automatic flow rate amplifying devices 4 and 5. This is because of the large resistance of the upper sea anchor 15 in the form of pulling the entire device. It is important to consider that the function of the automatic flow rate amplifying device is to increase the flow rate, and if the size is the same, if the height is doubled and tripled, the flow rate will be doubled and tripled. Although it is shown in the figure of 1M, I think that it can be understood well that it becomes a greater resistance when it becomes 2M and 3M under various conditions such as the conditions of the installation location. The tidal currents flowing outside the floating bodies 1-A and 1-B in this way are the arrows 11 indicating the flow directions shown on the left and right in the center of the figure, but the outer surface of the automatic flow velocity amplifying devices 4 and 5 Due to the function of the opening 8 provided in the apparatus, the opening 8 is opened at the time of the shape of the drainage function, so that it flows into the automatic flow velocity amplifying devices 4 and 5 through that part, Push out the tide of the outside, and make a flow here. The tidal currents flowing through the cylinders 6-A and 6-B receive the tidal currents processed by the automatic flow velocity amplifying devices 2 and 3, but it is desirable to use them inside the cylinder without reducing the flow velocity as much as possible. Rather than suddenly flowing to the place where the natural flow rate is close to the state where the natural flow rate is stopped, it is possible to use the tube until the end without dropping the flow rate inside the tube. The function of the opening 8 can be expected to reduce the resistance value and to help the flow of the cylinders 6-A and 6-B. Note that the size and number of the openings 8 are appropriately determined in consideration of the size of the portion that is intentionally left on the outer surface, which will be described later in the description of FIG. 8, and the total length of the outer surface and the functional surface of the opening 8. FIG. 2 is a diagram in which two automatic flow rate amplifying devices 2, 3, 4, and 5 are provided. The sea anchor 15 is installed on the upstream and downstream seabeds of the tidal current surveyed in advance, but it is also possible to install an anchor that assists with the support force of the bedrock on the seabed, but the chain 16 connecting the anchor and the floating body is a floating body To maintain the angle, be sure to moor with two and install so as not to impair its function. In the figure, the chain 16 that connects the upper and lower anchors 15 and the floating body is written in the same manner, but in reality, the entire device is moored by being pulled by the anchor 15 on the upstream side of the flow. The downstream chain 16 is slack. This chain 16 can also be supplemented if its function is not changed. Reference numeral 9 is a directional control valve provided in each of the automatic flow velocity amplifying devices 2, 3, 4 and 5, and automatically operates with the natural force of the tidal current together with the opening blades 30. Overcoming time lag due to changes in power flow, reducing device malfunctions and reducing device management costs. The function of the opening 8 makes it possible to design the flow velocity and flow rate according to the conditions of the installation location, and it is easy to overcome problems such as the natural flow velocity and the usage location for tidal current power generation.

Fig. 3 shows the situation when the tidal current in Fig. 2 is reversed after 6 hours. In this figure, the automatic flow velocity amplifying devices 4 and 5 are in the shape of the water collecting function, the opening 8 is closed and the directional control valve 9 is also tidal. It changes with the power of nature. The automatic flow velocity amplifying devices 2 and 3 have a drainage function and the opening 8 is open. The sea anchor 15 and the floating body mooring chain 16 are also reversed in tension. The floating body mooring chain 16 is always connected to the floating body by two from the sea anchor 15, and the angle between the tidal current and the floating body is always kept constant. The upper deck 7 is indicated by a dotted line.

FIG. 5 shows the automatic flow velocity amplifying devices 2 and 3 with the protective net 13 at the entrance removed, and the upper deck 7 of the floating body 1-A, 1-B, 1-C is similarly written. , 3 and the levels of the cylinders 6-A and 6-B and the levels of the floating body main bodies 1-A, 1-B and 1-C are illustrated with different angles. FIG. 5 is a diagram in the case where the flow direction of the tidal current is an arrow 11, and the tidal velocity at the inlet of the automatic flow velocity amplifying device at the bottom of the figure and the state immediately before introduction into the cylinders 6 -A and 6 -B of the next flow path are shown. The tidal current speed occurs before and after processing by the automatic flow velocity amplifying device, and the speed is high. The floating bodies 1-A, 1-B and 1-C are each one ship, and the cylinders 6-A and 6-B are attached between the three ships. The cylinder 6-A , 6-B are attached with automatic flow rate amplifying devices 2 and 3 respectively to form independent flow paths. Reference numeral 21 denotes the above-described floating body connecting portion, and reference numeral 10 denotes a support column connecting the floating body and the upper deck.

FIG. 7 shows a bird's-eye view of the automatic flow velocity amplifying device 4, 5 when the drainage function is located, that is, when it is located downstream of the tidal current, in order to make the inside easier to understand by opening the upper plate portion of the automatic flow velocity amplifying device. It is. The opening 8 is opened due to the shape of the drainage function, and the current flows inside the automatic flow velocity amplifying devices 4 and 5 so that the flow of the current flowing outside the floating body 1-A and 1-B is brought close to the straight. This reduces the resistance to the flow of the entire device, pushes the internal tide when the automatic flow velocity amplifying device has a drainage function configuration, and improves the flow inside the automatic flow velocity amplifying device to improve the flow of the entire flow channel. To improve. However, by operating everything with the natural power of the tidal current, it is possible to prevent malfunctions and to set the flow rate magnification of the automatic flow rate amplifying device freely, so that the efficiency of the device can be increased as long as the installation conditions at the installation location allow. Reference numeral 30 denotes an opening blade, and the angle in the figure is a stop angle at the time of opening. Reference numeral 11 denotes a flow direction of the tidal current, reference numeral 14 denotes a water line, 10 denotes a support, and 7 denotes an upper deck.

FIG. 8 is an enlarged view of the hinge part of the blade 30 of the opening 8 attached to the automatic flow amplifying device of the opening 8, but the part 28 is intentionally left on the outer surface of the main body of the automatic flow amplifying device. Open that part to an appropriate size, attach a margin to the end of the opened part and double-attach the hinge, and attach the blade 30 that opens to one side of the hinge (shown by the dotted and solid lines in the figure). By attaching the opening blades 30 in the form shown in the figure, when collecting water, the dotted line portion in the case of FIG. 8 is formed, the hole made in the automatic flow velocity amplifying device is closed, and the automatic flow velocity is generated by the force of the tidal flow. Since the blade 30 is pressed against the main body of the amplifying device and the opening size is slightly smaller than the outer size of the blade, the automatic flow velocity amplifying device is in a closed tube state and performs a water collecting function of collecting water and increasing the flow velocity. When the tidal current is reversed every 6 hours, the reference numeral 27 in the figure is in the direction and angle of the tidal current, so the entire tidal current power generation device is fixed to the seabed by the sea anchor 15, so the automatic fixed to the floating body The main body of the flow velocity amplifying device is also in a fixed state, and only the blade 30 of the opening 8 is pushed by the inverted tidal current and moves from the dotted blade 30 to the solid blade 30 in the figure. The moved blade is stopped at the position shown in FIG. With that function, the automatic flow velocity amplifying device is made into the shape of the drainage function. When the power flow is reversed after 6 hours, the opening blade 30 hits a part of the automatic flow velocity amplifying device main body that is intentionally left in the reference numeral 28 and is pushed by the reversed power flow. Since the tide is directly applied to the blade 30, the tide 30 moves smoothly to the dotted line position in the figure. Since this operation is repeated with the power of the tidal current at the time of tidal current reversal every 6 hours, the time of reversal shifts in the state of tide fullness depending on the installation location, and there are fewer malfunctions than when this opening and closing is controlled by a timer etc. It leads to management cost reduction. The code | symbol 29 is a hinge of the sea use OK, and the number and material of the hinge 29 and the opening part stopper 31 will not be limited unless the function of this invention is inhibited.

As mentioned above, the number and shape of floating bodies and cylinders can be changed freely, and it can be changed depending on the ratio of changing the flow velocity and flow rate of the automatic flow velocity amplifying device or the shape of opening the hole in the opening 8. is there. However, the higher the magnification, the more the shape becomes the resistance to the flow, and it seems that the opening part of the present invention is required. Also, there is a difference between the flow velocity of the tidal current flowing through the cylinder that generates power and the flow velocity of the drainage part, and the tidal water that stays in the discharge part may deteriorate the efficiency of the device. It is expected to increase the efficiency of body flow. The present invention is considered necessary for the spread of tidal current power generation. Note that the number, shape, and material of each part are not limited as long as they do not obstruct the object of the present invention.

The present invention relates to a tidal current power generation apparatus that takes in a tidal flow and generates power by using the force.

Various developments have been made for tidal power generators in search of inexpensive natural forces, all of which are natural tidal currents that can be used as they are. There is a divergence between and has not reached full-scale spread.

JP 2009-114936 Tidal Current Power Generator

The present invention solves such problems, and aims to provide a tidal current power generation device that enables power generation using a tidal current that does not allow the generator to operate and that does not have a high flow velocity, and that can generate power even if the direction of the tidal current is reversed. To do.

In the present invention, a flow velocity amplifying device composed of a horn-shaped cylinder having a larger opening area on the tidal current introduction side than the opening area on the flow path side is connected to both ends of the flow path to the tidal current for operating the generator. It is.

By increasing the tidal current flow velocity in the device, it is possible to generate power by tidal current even at a point where the tidal current flow velocity is not fast, and it can be expected that the tidal power generation will be put to practical use.

The partially exploded perspective view which shows schematic structure of the tidal current power generation apparatus of this invention. Plan view Plan view The same plan view AA sectional view Exploded perspective view of the main part Front view from the tidal side Same part plan Same part plan Same part plan Automatic flow rate amplifying device Direction control valve hinge part enlarged view (A) Side view of rotating body and partition plate (B) Plan view Schematic layout of important elements of the tidal current power generator of the present invention Rotating body Rotating body Angle control bracket Partial enlargement Rotating body Position change 45 degree figure

Embodiments of the present invention will be described below.
FIG. 1 shows the overall configuration. 1-A, 1-B, and 1-C are floating bodies equipped with a generator and the like, and tidal power is introduced as rotational force between the floating bodies 1-A and 1-B. A cylindrical body 6-A, which is a tidal current flow path for power generation with a rotating body (described later), is fixed, and a similar cylindrical body 6-B is fixed between the floating body 1-B and the floating body 1-C. ing. 2 and 3 are automatic flow velocity amplifying devices composed of horn-shaped cylinders that take in the tidal current with the larger opening area and increase the flow velocity by constricting within the device to move from the smaller opening area to the next channel. Introduce a tidal current. The side with the smaller opening area is connected to one of the openings of the cylinders 6-A and 6-B, respectively, and the tide is discharged from the cylinders 6-A and 6-B to the automatic flow rate amplifying devices 4 and 5 of the discharge function. It is designed to form a continuous flow path. The structure thus configured floats on the sea so as to be parallel to the direction of the tidal current, and is moored by sea anchors 15 fixed to the seabed. Floating bodies 1-A, 1-B, and 1-C are configured to have buoyancy that matches the overall weight in order to float the entire device. The automatic flow velocity amplifying devices 2 and 3 and the automatic flow velocity amplifying devices 4 and 5 are the devices that take in and discharge tidal currents. The tidal currents taken in by these devices are introduced into the next cylinders 6-A and 6-B and taken in as rotational force. Generate electricity. Attach the upper deck 7 with struts 10 for floating connection reinforcement and management work, and take a distance from the sea to avoid waves. 21 is a connecting part of floating bodies 1-A, 1-B, 1-C. A dust inflow prevention net 13 is installed at the entrance of the automatic flow velocity amplifying device 2, 3, 4 and 5 to remove the suspended matter to prevent the floating matter from entering the device. The sea anchor 15 and the floating bodies 1-A, 1-B and 1-C are connected by the mooring chain 16. Two mooring chains 16 are always provided to maintain a fixed angle of the floating bodies 1-A, 1-B, and 1-C, and the floating bodies 1-A, 1-B, and 1-C are installed so as to be parallel to the tidal current. . Two sea anchors 15 are installed before and after the flow when the direction of the tidal current is the direction of the arrow 11, and the sea anchor 15 is moored on the land by the land mooring chain 17 in order to stabilize the sea anchor 15 and make the installation cost easy and inexpensive. From the waterline 14, the top is the sea, the bottom is the sea, and the bottom. Reference numeral 8 denotes an opening provided in the automatic flow velocity amplifying apparatus 2, 3, 4 and 5, which will be described in detail later.

FIG. 2 is a plan view of the entire apparatus as viewed from above. FIG. 2 shows the shape of the tidal current power generation device of the present invention when the flow direction of the tide is in the direction of the arrow 11. However, if the state shown in FIG. Thus, the shape at the time of tide is as shown in FIG. The shape of the device is configured to change naturally using the power of the tidal current. The overall function is to receive the incoming tide with the automatic flow velocity amplifying devices 2 and 3, and the ratio of the inlet area to the outlet area is 10: 1. As shown in FIG. 4, the rotating body 23 provided in the cylinders 6-A and 6-B is regarded as a rotational force, and the rotational force is input to the generator 22 through the gear 24 to generate power. The flow path of the tidal current is increased from the tidal current received by the automatic flow velocity amplifying device 2 inside the automatic flow velocity amplifying device 2 and from the flow inflow side of the cylinder 6-A by the direction control valve 9 provided in the automatic flow velocity amplifying device 2. The rotational efficiency of the rotating body 23 introduced into the right side as viewed and incorporated in the cylindrical body 6-A is increased. The tidal current introduced into the cylindrical body 6-A is captured and used as a rotational force by the provided rotating body 23, and then guided to the automatic flow velocity amplifying device 5 and discharged. The tidal current received by the automatic flow velocity amplifying device 3 is used in the same manner and is guided from the cylindrical body 6-B to the automatic flow velocity amplifying device 4 and discharged. The two flow paths are supported by floating body main bodies 1-A, 1-B, 1-C divided into three bases and moored by a sea anchor 15. In the figure, the upstream and downstream sea anchors 15 are shown in the same state, but the entire apparatus is actually pulled by the upstream sea anchor 15. In the state of FIG. 2, the outer surface of the automatic flow velocity amplifying devices 4 and 5 on the downstream side has a great resistance for the tidal current flowing outside the floating bodies 1-A and 1-B, but is provided in the automatic flow velocity amplifying devices 4 and 5. The opening 8 is open and has a shape that allows the flow to pass through, thereby reducing the resistance to the flow. Another function provided in the automatic flow velocity amplifying devices 2, 3, 4 and 5 is the directional control valve 9, but the automatic flow velocity amplifying device 4 of the automatic flow velocity amplifying devices 2 and 3 for the inflow function and the automatic flow velocity amplification device 4 for the discharge function. , 5 shape of the directional control valve 9 is naturally changed by the power of the tidal current. The functional description of the opening 8 is shown in FIG. 8, and the functional description of the direction control valve 9 is shown in FIG. In FIG. 2, AA shows the position of the cross-sectional view for easy understanding of the connection between the floating bodies 1-A, 1-B, 1-C and the cylinders 6-A, 6-B. Is shown in FIG.

In FIG. 3, the shape at the time of tide, that is, the direction of the arrow 11 which is the direction of the tide is opposite to that in FIG. 2. The shape of each part of the device changes naturally with the power of the tidal current. In the case of FIG. 3, the sea anchor 15 at the bottom of the drawing pulls the entire apparatus. The function of each device is shown in FIG.

FIG. 4 is a cross-sectional view taken along line AA in FIG. As shown in the figure, the floating body main bodies 1-A, 1-B, 1-C are connected and reinforced by the floating body connecting portion 21 at the bottom, the floating body connecting portion 21 at the top, and the upper deck 7. The reason for providing the upper deck 7 is mainly to connect and reinforce the floating body 1-A, 1-B, 1-C, although the upper part of the deck 7 is used. No. 25 represents the inner wall line, and No. 21 represents the upper and lower parts of the floating body connecting part. The force of the water flow amplified by the automatic flow velocity amplifying devices 2 and 3 and introduced into the cylinders 6-A and 6-B is converted into rotational force by the rotating body 23 and passed through the rotational speed adjusting gear 24, and the floating body main body 1-A, Rotating the generator 22 housed in 1-B, 1-C, but the generated electricity is subject to fluctuations due to changes in the speed of the tidal current, so the voltage, frequency, power factor, etc. are adjusted to adjust the power company system The devices that have to be connected to the line and have the same functions are installed in the same manner, but are collectively referred to as the generator 22 here. The upper part of the gear 24 and the floating body 1-A, 1-B, 1-C is installed if necessary to cope with the need for tide prevention and wave protection. No. 0014 represents the water line and introduces and uses the tidal current directly below the surface of the water. For each material, marine steel plates, stainless steel, non-ferrous metal materials / alloy materials, engineering plastics having high strength and durability, and plastic composite materials such as FRP and CFRP can be considered, but the object of the present invention can be achieved. If it is, it will not be limited.

In FIG. 5, the automatic flow velocity amplifying devices 2, 3 are removed by making the protective net 13 at the entrance easy to understand, and the upper deck 7 of the floating body 1-A, 1-B, 1-C is similarly written. The levels of the cylinders 6-A and 6-B and the levels of the floating body main bodies 1-A, 1-B and 1-C are shown in different angles for easy understanding. Each of the floating body 1-A, 1-B, 1-C is a ship and a cylinder 6-A, 6-B is attached between the three ships, and the cylinder 6-A, The automatic flow rate amplifying devices 2 and 3 are attached to 6-B to form independent flow paths.

FIG. 6 is a front view from the upstream of the tidal current flowing into the automatic flow amplifying devices 2 and 3, but the opening 8 is closed because the automatic flow amplifying devices 2 and 3 are in the shape of the water collecting function. The ratio of the inlet area to the outlet area of the automatic flow rate amplifying devices 2 and 3 is designed to be 10: 1 so as to increase the corresponding flow rate. Although it is the entrance of B, it is indicated by reference numeral 18 to make the drawing easy to understand. The sea anchor 15 is fixed to the bottom of the sea from the waterline 14 to the sea, and the bottom is the sea. The sea anchor 15 is moored by a land mooring chain 17 in order to make the installation of the sea anchor 15 easy and inexpensive. There are always two mooring chains 16 moored from the sea anchor 15 to the floating body 1-A, 1-B, 1-C. The cylinders 6-A and 6-B including the rotating body 23 for generating power from the automatic flow velocity amplifying devices 2 and 3 on the inflow side of the tidal current are all in a closed pipe state for increasing the flow velocity. 19 and 20 show the plate lines on the upper and lower sides of the automatic flow velocity amplifying devices 2 and 3 to show this.

FIG. 7 is an easy-to-understand bird's-eye view of the shape of the automatic flow velocity amplifying devices 4 and 5 when they are drained, that is, when they are located on the downstream side of the tidal current, except for the upper plate. Since the opening 8 has a shape at the time of the drainage function, the opening 8 passes through the tide, reduces the resistance value against the tide 11 flowing outside the floating body 1-A, 1-B, and reduces the load resistance required for the sea anchor 15. Reduce. FIG. 8 shows the operation of the blade 30 provided in the opening 8, and the angle of the blade shown in FIG. 7 is the stop angle at the time of opening.

FIG. 8 shows the operation of one of the openings 8 of the functions included in the automatic flow amplifying devices 2, 3, 4, and 5. The blade 30 of the opening 8 is hinged 29 to the part 28 of the automatic flow amplifying device. If it is attached and the direction of the tidal current is the direction of the arrow 27A (when it is in the water collection position), the blade 30 is in the dotted line position, the direction of the tidal current is changed, and the direction of the tidal current is shown in the direction of the arrow 27B (drainage position). If it changes, it will naturally move to the position of the solid line by the power of the tidal current. Explaining in detail, the flow of the tide changes every 6 hours, but there is a difference depending on the place, but it is generally reversed. Even if there is a slight difference, the present apparatus is fixed to the seabed by the sea anchor 15 and is drawn into it. Therefore, the direction of flow is always the direction of 27A and B shown in the figure. When 27A changes to 27B with a change every 6 hours, the blade 30 of the opening 8 and the automatic flow velocity amplifying device part 28 are pushed into the flow at the same time, and the automatic flow velocity amplifying device part 28 is fixed to the seabed by the sea anchor 15. Therefore, the automatic flow velocity amplifying device part 28 remains in its fixed state, and only the blade 30 of the opening 8 moves to the solid line position in the figure to form a drainage function, and the flow is passed through the opening 8 to resist the flow. Reduce the value. The moving blade 30 is stopped at the angle shown in the figure by the stopper 31 and stopped at that position until the tidal current change 6 hours later. When the flow is reversed after 6 hours, the reversed flow hits the part 28 of the automatic flow velocity amplifying device intentionally left between the openings 8 and 8 and the flow pushes the blades 30 of the opening 8 originally. Since the stop position is at the angle shown in the figure, the flow may directly hit the vane 30 and move smoothly from the solid line position to the dotted line position in the figure to change from the drainage function shape to the water collection function shape. The number and material of the stopper 31 are not limited as long as the stopper 31 stops the blade 30 at that position.

FIG. 9 illustrates the operating range of one direction control valve 9 having the functions included in the automatic flow velocity amplifying devices 2, 3, 4, and 5 and the engagement between the partition plate 33 and the rotating body 23 included in the cylinder 6-B. It is a thing. Looking at the plan view of the cylindrical body 6-B, the rotating body 23 is arranged so as to straddle the entire width of the two cylinders flowing in opposite directions, rather than having two partition plates 33 attached to one cylinder. The flow introduced into one side of each of the cylinders 6-B is rectified by the partition plate 33 so that the flow does not mix when the flow proceeds to turn the rotating body 23 and turn the next rotating body 23. This is repeated to increase the rotational efficiency of the entire rotating body 23. The partition plate 33 at the end of the cylindrical body 6-B is designed so as not to cause any inconvenience since the engagement with the directional control valve 9 occurs. FIG. 10 shows an enlarged view of the hinge portion of the directional control valve 9. For each number and material, marine steel plates, stainless steel, non-ferrous metal materials / alloy materials, engineering plastics with high strength and durability, and plastic composite materials such as FRP and CFRP can be considered, but the object of the present invention is achieved. It is not limited as long as it is possible. Also, the shape is not limited as long as it is possible to achieve the object of the present invention even if the shape is perforated, curved, etc.

FIG. 10 is an enlarged view of the directional control valve 9 incorporated in the automatic flow velocity amplifying device 3 that automatically moves the automatic flow velocity amplifying device 3 and the cylindrical body 6-B according to the direction of the power flow. The solid line position 9 is the position where the automatic flow velocity amplifying device 3 receives the flow and introduces the flow into the cylinder 6-B of the next flow path, and the dotted line position of the directional control valve 9 is the automatic flow velocity amplification shown in FIG. This is the position of the directional control valve 9 at the time when the device 4 receives the tidal current and passes through the cylinder 6-B of the flow path and is discharged from the automatic flow velocity amplifying device 3 side. The directional control valve 9 is attached to a part 28 of the automatic flow amplifying device 28 by a hinge 32 that can be used in the sea. When the automatic flow amplifying device 3 receives a power flow, the flow received at the entrance is dotted with the part 28 of the automatic flow speed amplifying device. The tidal current flowing between the directional control valves 9 in the position shown in the figure pushes the directional control valve 9 in the direction of the solid line position and starts moving, so the hinge 32 is installed at a position slightly inside the corner 1 Stop at the same angle as -B and introduce the tidal current to one side of the next channel cylinder 6-B to increase the rotational efficiency of the rotating body 23 built in the cylinder 6-B. When the flow reverses after 6 hours, the flow hits between the floating body 1-B and the directional control valve 9 and pushes the directional control valve 9 in the direction of the dotted line in the figure, so it stops at the solid line position in the figure. The flow may directly hit the directional control valve 9 and move smoothly to the dotted line position. Since the directional control valve 9 moves to both the automatic flow velocity amplifying device 3 and the cylindrical body 6-B, the shape such as the height is designed so as not to hinder.

11A is a side view of the rotating body 23 and the partition plate 33 inside the cylinders 6-A and 6-B, but the cylinder 6-A has two flow paths that flow in opposite directions depending on time. From time to time, it is divided into a flow path that flows at a high speed and a flow path that does not. Since the flowing tides move differently, the rotation efficiency of the rotating body 23 is reduced when the tides are mixed. When a fine image is expressed, it is not an image that the partition plate 33 is provided in one cylinder, but an image of the rotating body 23 straddling two independent flow paths, and the partition plate 33 is also provided on each side supported by the rotating body 23. The gaps at both ends are also produced in such an image. FIG. 11 (B) is a plan view of the cylinders 6-A and 6-B, but rectification is performed by the partition plate 33 so that the tidal current that rotates the rotating body 23 is not mixed with the tidal current of other flow paths.

FIG. 12 is a schematic layout diagram of the rotating body 23 and the partition plate 33 mounted on the cylinders 6-A and 6-B, such as the generator 22 mounted on the floating body 1-A and 1-B1-C. Each quantity is not limited because it is determined by the capacity required for the entire apparatus. The portion where 26 is written in the floating body 1-C is the entire spare space.

FIG. 13 shows a rotating body 23 that takes in the tidal force as a rotational force. When the tidal force is received by the angle control fitting 36 fixed to the core pipe 34, the tactile force is received in a fixed state. When going to the flow, change the angle, reduce the resistance value and increase the rotation efficiency. The angle of the tip of the water flow receiving plate 35 is a device for allowing the water flow receiving plate 35 to quickly reach the fixed position during rotation. The support part may be both ends or may be one-sided support so long as it satisfies the object of the invention. The same applies to each material.

FIG. 14 is an enlarged view of the central portion of the rotating body 23. A round bar 37 is supported at both ends while being fixed to an angle control fitting 36 fixed to the core pipe 34, and a round pipe 38 supported at both ends is fitted into a water flow receiving plate 35. The flow is strongly received at the solid line position of 35 and the resistance value is reduced at the dotted line position. The inner diameter of the round pipe 38 is larger than the outer diameter of the round bar 37, and is free to move. In order to make the drawing easy to understand, the position where the water flow receiving plate 35 is strongly subjected to the flow force is indicated by a solid line in the drawing, and the position where the angle is changed and the resistance value is reduced when rotating and moving toward the flow is indicated by a dotted line 39.

FIG. 15 is a diagram showing what position the blade of the water flow receiving plate 35 of the rotating body 23 changes every time it rotates 45 degrees. If you look at the water catch plate 35 marked with ★, you can see it well. Return to 1 to 8 in FIG. Here, the case where the direction of the tidal current is the direction of the arrow 11 is shown.

As described above, the number of floating bodies, the number of cylinders, and the like can be freely changed, and can also be changed depending on the ratio of the opening areas at both ends of the automatic flow velocity amplifying devices 2, 3, 4, and 5. As for the material, marine steel plates, stainless steel, non-ferrous metal materials / alloy materials, engineering plastics having high strength and durability, and plastic composite materials such as FRP and CFRP can be considered, but the object of the present invention can be achieved. If it is not limited.

1-A Floating body main body
1-B Floating body main body
1-C Floating body body
2 Automatic flow velocity amplifying device One side-Connected to the left cylinder 6-A when viewed from the main body
3 Automatic flow velocity amplifying device One side-Connected to the right side cylinder 6-B when viewed from the main body
4 Automatic flow velocity amplifying device One side-Viewed from the main body, connected to the left cylinder 6-B
5 Automatic flow velocity amplifying device One side-Viewed from the right side Connected to the cylinder 6-A 6-A Rotating body equipped Cylindrical body 6-B Rotating body equipped Cylindrical body
7 Upper deck
8 Automatic flow rate amplifier Opening (generic name)
9 Automatic flow rate amplifying device Directional control valve
10 props
11 Arrows indicating the direction of tide flow
13 Net for preventing inflow of garbage
14 water line
15 Sea anchor
16 Sea anchor and floating body mooring chain
17 Sea anchor and land mooring chain
18 Outlet of automatic flow amplifier 2 and 3
19 Automatic flow rate amplifying device Trumpet-shaped cylinder Upper plate line
20 Automatic flow velocity amplifying device Trumpet-like cylindrical body Lower plate line
21 Floating body joint top and bottom
22 Generator (including control equipment such as power conditioner)
23 Rotating body
24 Speed adjustment gear
25 Floating body wall line
26 Spare space for upper deck equipment, spare space for generators included
27 Current direction, angle
28 A part of automatic flow amplifier
29 Automatic flow amplifying device Opening hinge
30 Automatic flow rate amplifying device Opening blade (solid line-open, dotted line-closed)
31 Automatic flow rate amplifier Opening stopper
32 Automatic flow rate amplifying device Directional control valve
33 Partition
34 Rotating core pipe
35 Rotating body Water flow receiving plate Position to receive strong flow force
36 Rotating body Angle control bracket attached to the core pipe
37 Round bar fixedly attached to angle control bracket fixed to rotating body
38 Rotating body Round pipe attached to water flow receiving plate (Inner diameter> Diameter of round bar attached to core pipe)
39 Rotating body Water flow receiving plate Resistance reduction position

Claims (7)

A floating body body that houses a generator and is provided so as to float on the sea; a flow path structure that includes a rotating body that is fixed to the floating body body and constitutes a flow path of the introduced tidal current and that rotates by the tidal current; Rotation transmitting means for transmitting the rotation of the rotating body to the generator, and a second opening for capturing a tidal current having a first opening connected to one of the flow path components and having a larger opening area than the first opening A horn-shaped cylindrical body having a portion, and a flow velocity amplifying means for introducing into the flow path structure a tide having a flow velocity amplified corresponding to the ratio of the opening areas of the first and second openings, A tidal current power generation apparatus comprising mooring means for mooring the floating body main body at a fixed position. The tidal current power generator according to claim 1, wherein the flow velocity amplifying means is connected to both ends of the flow path structure. The tidal current power generator according to claim 2, wherein an opening is provided on the outer side surface of the flow velocity amplifying means that opens only when positioned on the downstream side of the tidal current and takes in the tidal current along the outer side surface. When one flow velocity amplifying means is located on the upstream side of the tidal current, the tidal current flowing through the flow passage structure is guided to one side of the flow channel structure, and when the other flow velocity amplifying means is located on the upstream side, it flows through the flow passage structure. The tidal current power generator according to claim 2, wherein a directional control valve for guiding the tidal current to the opposite side is provided at a connection portion between the flow velocity amplifying means and the flow path constituting body. The tidal current power generation device according to claim 4, further comprising a partition for separating a tidal current in two directions flowing in the opposite direction depending on a tidal current direction in the flow path constituting body. The rotating blades maintain a constant angle with the rotating shaft when they come to a position where they can obtain rotational force from the tidal current, and rotate so that the resistance caused by the tidal current decreases when they come to a position where they cannot obtain the rotational force from the tidal current. A tidal current generator with an angle control bracket that automatically changes the angle with the shaft. The tidal current power generator according to claim 1, wherein a net for removing dust is provided in the second opening for taking in the tidal current of the tidal current amplifying device.

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