JP2011007170A - Underwater power plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underwater power plant dealing with underwater vertical motion due to normal change sea level by wave generated on the sea, and water flow from all underwater horizontal direction such tidal current.SOLUTION: The underwater power plant 1 increases speed of water flow and guides the same by a water flow speed increase part 8 to apply water pressure on a blade part of a rotary blade part 4, has an inside of the blade part kept in a cavity state to keep water power, and drives the rotary blade part by increasing power. A back surface side of a water receiving port of the blade part is formed in an acute angle or a streamline shape to reduce resistance of opposing water flow. Moreover, a rotary shaft 3 of the rotary blade part 4 is efficiently rotated since the device has a structure not leading water flow by the water flow accelerator to a back surface of the blade part. Also, electric energy is efficiently provided by both direction underwater power generation by using water power of surging wave and ebbing wave at seashore.

Description

The present invention relates to the principle and structure of an underwater power generator installed in a river or the sea.

A conventional hydroelectric generator uses a head of water flow to generate electricity by rotating a water turbine by the water flow. Further, these underwater hydroelectric generators are generally unidirectional, and the main blades are rotated with the rotor blades facing each other in the direction of the water flow, and the mechanical energy is converted into electric energy. Although there are some which float on the water surface and face the water flow, the method does not change the vertical force due to the magnitude of the wave into electrical energy.
JP-A-8-210237 JP 2004-353646 A Japanese Patent Laid-Open No. 9-256941

  In order to eliminate the above-mentioned drawbacks, the present invention can handle an underwater generator in a natural river or in the sea in a single direction, bidirectional or all directions with respect to the vertical movement of seawater waves and the direction of tidal currents. It is possible to provide a device that can generate power efficiently without relying on a large head of water flow.

  In a hydroelectric power generation device that uses the head of a water flow, large dedicated facilities such as a dam and enormous costs are required.

  In order to achieve the above object, an underwater power generation apparatus according to the present invention has an efficient water channel from a water inlet side opening by a water flow guide plate, and the water flow guide plate is placed in a horizontal direction and a vertical direction in the flowing water. Direction or each is combined and arranged as a water flow speed increaser, and an underwater power generator is attached to the rotating shaft of the rotor blade having the water receiving port to generate electric power.

  In other words, it is composed of the rotor blade part, an underwater generator provided at one end of each rotating shaft, and a water flow guide plate or a water speed booster that guides the water flow to the water receiving port of the rotor blade. is there.

  That is, according to the present invention, the flowing water is guided to the water receiving port side of the submerged rotary wing portion, and the back surface side thereof is streamlined or acute-angled with little resistance due to the opposed water flow. Adopting an inductive water flow intensifier, the water flow rate is increased, and the water flow with this increased flow rate drives the rotor blades connected to the underwater generator. Or it can respond to flowing water from all directions.

  In order to achieve the above object, the present invention uses inexhaustible natural energy to generate electric power, changing the vertical motion of waves into force, or pressurizing the water pressure due to water flow to convert the high energy into electricity. It turns into energy.

  In order to induce the water flow, the invention according to claim 1 has two horizontal guide plates, or the width of the water inlet side is widened and the width is increased, and the width is gradually reduced in the direction of the rotor blades. From the normal direction of the rotation axis of the rotary wing part to two azimuths (360 degrees) from the normal direction of the rotary axis of the rotary wing part in the two horizontal guide plates having a plate interval This is an underwater power generator that can handle the water flow of

  In order to induce the water flow, the invention described in claim 2 has two horizontal guide plates or widened on the water inlet side and widened the width, and gradually reduced the width in the direction of the rotor blades. Two horizontal guide plates having a plate interval, the rotor blades disposed between the two blades, where both sides of the rotor blades are cut out and in the normal direction of the rotating shaft of the rotor blades The underwater power generation device is characterized by being able to handle water flows in a single direction and all directions (360 degrees) including both directions.

  The invention according to claim 3 uses a plurality of vertical guide plates to guide the water flow. The water inlet side has a wide angle with respect to the normal direction with respect to the rotation axis and the width thereof is increased. The width is gradually reduced in the wing direction and guided to the wing part. From the normal direction of the main axis of the rotary wing part, the unidirectional and all directions including both directions (360 degrees) The underwater power generation device according to claim 1, wherein the underwater power generation device can cope with a water flow.

  According to a fourth aspect of the present invention, there is provided a water flow speed increasing device having an opening area on the water inlet side of the flow channel that is enlarged and gradually reducing the opening area in the direction of the blade portion, and the normal line of the main axis of the rotary blade portion It is an underwater power generation device characterized by corresponding to a water flow from one direction to all directions (360 degrees) including both directions. Moreover, the shape of the water flow speed increaser may be circular, and does not specify the shape.

  In order to induce the water flow, the invention according to claim 5 has two horizontal guide plates or a wide angle on the water inlet side and the width thereof is increased, and the width is gradually reduced in the direction of the rotor blades. Two horizontal guide plates having a gap between the plates, and in the rotary blade portion disposed between the two horizontal guide plates in a portion where the rotary blade portion is located, a range where the two horizontal guide plates are cut out is a bearing plate of the rotary blade portion. The underwater power generation device according to claim 2, wherein the underwater power generation device is fixed by performing cover.

  A sixth aspect of the present invention is the underwater power generation apparatus according to any one of the second to fifth aspects, characterized in that a drainage opening is provided in the bearing plate of the rotary blade part and the degree of opening and closing thereof can be controlled. The drainage discharged from the drainage port from the wing side is not shown, but can be further discharged to the outside. Further, the drainage function can be provided on the horizontal guide plate side of the water speed booster instead of being provided on the rotary bearing plate.

  The underwater power generator according to any one of claims 3 to 6, wherein a water flow guide destination of the vertical guide plate and the water flow speed increaser is directed to the blade receiving port. .

  The invention according to claim 8 has a structure in which the vertical guide plate and the water channel of the water flow amplifier are not guided to the back side even when the back side of the blade receiving port of the rotary wing part rotates and returns. The underwater power generation device according to claim 3, wherein the underwater power generation device is provided.

  The invention according to claim 9, wherein the water receiving port of the blade portion has a cavity, and the back surface of the blade portion has an acute angle or a streamline shape. Underwater power generator.

  In the invention of Claim 10, the said rotary blade part is attached individually or in multiple stages, The underwater electric power generating apparatus of Claims 1-9 characterized by the above-mentioned.

  The invention according to claim 11 is the underwater power generation device according to any one of claims 1 to 10, characterized in that at least three blade portions are provided. In the case where the water flow speed increaser and the rotary blade portion are formed in a plurality of stages, the water flow speed increasing portion and the water flow speed increasing portion are not closely attached to each other, and an appropriate interval can be provided. Although not shown in the drawing, the connecting shaft is provided between the rotating blades.

  The underwater power generation device according to claim 1, wherein the water inlet side opening and the water discharge side opening are not separated but are used in combination.

  The horizontal plate, the horizontal guide plate, and the vertical guide plate described in claims 1 to 12 are cases where the rotation axis of the rotary blade portion is arranged in a vertical direction. The plate and the horizontal guide plate mean the surface in the normal direction of the rotating shaft, and the vertical guide plate has the same direction as the rotating shaft, that is, an angle of 90 degrees with the normal direction of the rotating shaft. It means the direction to be formed.

  The above invention is an underwater power generation apparatus that can handle flowing water from all directions by combining and arranging two machines so that the rotating shaft of the rotor blades is rotated vertically, horizontally, or vertically and horizontally. .

  In other words, it is very efficient that the water flow from all directions can be taken in by the water speed increaser, the water flow of the rotor blade is pressurized and the rotor blade connected to the generator can be driven efficiently. It is an underwater power generation device that can generate electric power.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the underwater power generation apparatus 1 of the present embodiment is an underwater power generation apparatus that generates power using a water flow that moves in a substantially horizontal direction in a river or seawater. Or 7), mainly composed of the rotating shaft 3 and the water flow speed increaser 8 and the generator 2. The rotary blade (4, 5, 6 or 7) and the water flow speed increaser 8 are combined.

(A) is a one-stage installation of the water flow speed increaser and the rotary blade part 4, and (b) is a three-stage water flow speed increasing part and the rotary blade part 4, depending on the application. The rotor blades 5, 6 or 7 can be used, and other rotor blades may be installed. The number of installation stages of the water flow acceleration section and the rotary blade section may be determined according to the required power supply.

  Further, the rotating shaft 3 is provided in a vertically standing posture in the water channel of the submerged rotating blade portion 4, and the generator 2 is attached with one end portion of the rotating shaft 3 levitating from the water surface portion. Alternatively, when the rotating shaft 3 is operated in the horizontal direction, the connection of the rotating shaft 3 may be changed to the vertical direction via a gear, and the underwater generator 1 may be disposed.

  The generator 2 is connected to one end side of the rotary shaft 3 to which the rotary blade portion 4 is attached in this manner. The water flow speed increaser 8 is very useful for pressurizing and feeding water to the water receiving port of the rotor blades (4a to 4f) even in a place where the water flow is gentle.

  In FIG. 2, each rotary blade (4a-f) is fixed to the rotating shaft 3, and the rotary blade portion (4, 5, 6, 7) has at least three or more rotary blades.

  2 (a), (b), (c), and (d) show four types of rotary blade units (4, 5, 6, and 7) that can be used in the underwater power generation apparatus 1 described above. is there. All these rotor blades (4a-f, 5a-f, 6a-f, 7a-f) have a cavity for receiving water, and the dotted line of the rotor blade indicates its depth. In the rotor blades (4, 5, 6, 7), the back surface of the water receiving port (the portion shown by hatching) of the rotor blades (4a to f, 5a to f, 6a to f, 7a to f) A linear or acute angle is used to reduce the loss head (resistance). In addition, when the water receiving pressure is very high, a drain outlet is provided on the back of the water inlet in order to lower the water receiving pressure, and the drain outlet is automatically controlled by water pressure or program control. The rotational speed of 2 may be controlled to correspond to a high water receiving pressure.

  FIG. 3 is a diagram showing horizontal guide plates 20a and 20b for guiding running water in the direction of the rotor blades. FIG. 4A is a perspective view of the horizontal guide plates 20a and 20b. FIG. 2B is a view of the horizontal guide plates 20a and 20b viewed from the side. As shown in the figure, two horizontal guide plates 20a and 20b are paired, and the horizontal guide plates 20a and 20b are circular in shape, are horizontal in the vicinity of the center, and have a wide angle with an inclined side surface. Therefore, it is possible to correspond to all directions (360 degrees).

  FIG. 4 is a perspective view showing the vertical guide plates 30 (a to l). This is to guide the direction of the water flow in the horizontal direction, and all the water channels are directed to the water inlets of the rotor blades, and are arranged radially using a plurality of vertical guide plates 30 (a to l). In addition, the water flow from all directions (360 degrees) can be handled.

  FIG. 5 is a side view of the water speed booster 8U in which the horizontal guide plates 20a and 20b and the vertical guide plates 30 (a to l) are combined. As can be seen from the figure, the water inlet side has a larger opening area, gradually decreasing the opening area toward the center, and speeding up the water flow. Of course, this can also correspond to a water flow in the direction of 360 degrees.

  FIG. 6 is a perspective view of the water flow speed increasers 8 and 8U. (A) is the water flow speed increaser 8 alone, and (b) is compatible with all directions (360 degrees) where 12 water flow speed increasers 8 are arranged radially.

  Further, as shown in FIGS. 1A and 1B, the water flow speed increaser 8 is configured such that the water inlet side to the rotor blades (4, 5, 6, 7) has an opening area toward the downstream side. Since the opening area is gradually reduced, a high water pressure is applied to the water receiving port of the rotor blade. That is, the inside of the water flow speed-intensifier 8 is made into a pressure pipe state, and the water flow speed is increased.

  FIG. 7 is a see-through perspective view of the rotor blade unit 4 portion in which the water flow accelerator 8U (corresponding to 360 degrees) and the rotor blade part 4 are combined. FIG. 8 shows the relationship between the rotary blade 4 and the water flow. (A) is the figure which showed the correspondence of the conventional rotary blade part 4 and a water flow, (b) is arrange | positioning 12 vertical induction | guidance | derivation plates (corresponding to 360 degree | times) radially, and this rotation is in the center. When the wing | blade part 4 is arrange | positioned, it is the figure which looked at the relationship between this rotary wing | blade 4 and a water flow from the upper part.

  Since the wing portion (4a to f) that receives a high-speed water flow is provided with a wing portion having a cavity, the water is temporarily received by the cavity (the dotted line indicates the depth). The rotational force is increased by the pressure. (B) As shown in the figure, the back side of the water inlet of the blades (4d, 4e, 4f) has a structure that does not receive the pressure of water directly, and the back of the water inlet of the blades. The counter water pressure is reduced by the side being an acute angle or streamline.

  FIG. 9 is a view of the relationship between the water flow, the horizontal guide plates 20a and 20b, and the rotor blades 4 seen from the lateral direction. FIG. 9A shows the rotor blades 4 without the horizontal guide plates 20a and 20b. The water flow direction is shown, and (b) shows the relationship between the water flow and the water flow when the horizontal guide plates 20a and 20b and the rotary blade portion 4 are provided.

  A combination of the 12 vertical guide plates (30a to 30l) shown in FIG. 8 (b) and the horizontal guide plates 20a and 20b shown in FIG. 9 (b) is a water flow speed increasing portion.

  FIG. 10 is a perspective view seen from the side where the rotary blade portion 4 is installed at the center of the water flow acceleration portion 8U. In this case, the rotating shaft 3 of the rotary blade part 4 is installed in the horizontal direction, and the generator 2 is connected to it. As shown in the figure, this is suitable for a place where there is a vertical movement of a wave and a reciprocating movement of a water flow (horizontal direction). Moreover, the incoming water side and the drainage side are not separated but are used together.

  FIG. 11 is a view of the relationship between the twelve vertical guide plates 30 (a to l) radially disposed so as to surround the rotor blade 4 and the water flow as viewed from above. As shown in the figure, there is no distinction between the water inlet side and the water outlet side, and they are shared and correspond to all directions (360 degrees direction) with respect to the water flow from the normal direction of the rotating shaft 3. It has a structure that can be done. Moreover, when the back side of the water receiving port of a blade | wing part (4a-f) rotates and returns, as shown also in FIG.8 (b), it has a structure where a water flow is not induced | guided | derived to this back side.

  Hereinafter, two examples of embodiments of the present invention will be described with reference to the drawings.

  FIG. 12 is a view of the relationship between the rotor blade 4 corresponding to the water flow bidirectionality, the water flow with respect to the vertical guide plates (41a-f) and the guide walls (40a, b), as viewed from above. As shown in the figure, there is no distinction between the water inlet side and the water outlet side, and they are used together. The water flow guide walls (40a, b) have a structure in which water flow is not induced on the back side even when the back side of the rotor blade receiving port rotates and returns. As a matter of course, the water flow speed increaser 8 may be arranged in place of the vertical guide plates 41 (af) and 40 (a, b).

  Hereinafter, three examples of embodiments of the present invention will be described with reference to the drawings.

  FIG. 13 is a diagram of donut plate-shaped horizontal guide plates 200a, 200b cut out from a circular center part of two pairs. (A) is the perspective view. (B) It is the figure which looked at this horizontal guide plate from the side. As shown in the figure, the width of the two guide plates on the water inlet side is not changed as in the example of the embodiment.

  FIG. 14 is a perspective view showing the vertical guide plate 300 (a, l). Each of the vertical guide plates 300 (a to l) has a rectangular shape, and the vertical guide plates are arranged in a radial manner, and the rotary blades are arranged at the center thereof.

  FIG. 15 is a perspective view of a water flow speed increaser 80U in which the horizontal guide plate and the vertical guide plate shown in FIGS. 13 and 14 are combined. As can be seen from the figure, it is possible to deal with water flows in all directions of 360 degrees.

  FIG. 16 is a perspective view of the water flow speed increaser 81U that covers and fixes the central portion of the water flow speed increaser with a bearing plate 50 of the circular rotor blade part 4. This water flow speed increasing device 81U can cope with all directions (360 degrees) in which 12 water flow amplifiers 80 are radially arranged.

  The water flow speed increaser 82U shown in FIG. 17 is provided with a cover for the circular rotor blade bearing plate at the cutout portion of the central portion of the water flow speed increaser 81U using the donut-shaped flat plate of FIG. The bearing plate of the rotor blade part is provided with a controllable drainage port, and the opening degree of the drainage port is controlled by the water pressure of the water flow.

  In addition, a rotary blade is installed in the central portion of the water flow speed increasing portion 82U arranged radially, and the induced flowing water applies water pressure to the blade portion 4 (af) of the rotary blade portion 4, The rotating blade part 4 is driven, the rotating shaft 3 is rotated, and the water pressure applied to the blade part (af) is made as stable as possible.

  FIG. 18 is a drawing of the bearing plate 60 for controlling the opening and closing of the drain port. (A) is a figure of the state which has not attached the drain opening control board for control to the cover of a bearing board. (B) is the figure of this drainage opening-and-closing board 61 attached to the cover of this bearing board. (C) is the figure which opened this drain-port opening-and-closing plate 61 fully. (D) is a half-open drawing. (E) is a fully closed figure. (F) uses the hinge 63 to open and close the drain outlet which can be controlled.

  These are determined by the water pressure. The opening / closing may be performed by using the rotating force of the rotating shaft 3 or may be performed by a separate opening / closing motor. Of course, it can also be done manually.

  The drainage control can be provided not on the rotary bearing plate but on the horizontal guide plate portion of the water speed booster.

  FIG. 19A is a view showing the relationship between the water flow speed increasing device 80U and the rotor blade 4, and FIG. 19B is a controllable drainage provided in the water flow speed increasing portion 82U and the bearing plate 60 of the rotor blade. It shows the relationship between the mouth and the rotor blades, and is a view of the drainage port fully closed.

In the underwater power generation apparatus according to the first embodiment of the present invention, the water flow speed increasing portion and the rotor blade are individually and three-tiered, viewed from the side. The perspective view of the rotary blade part employ | adopted as the underwater electric power generation apparatus shown in FIG. The figure which showed the horizontal guide plate with which the hydroelectric generator of FIG. 1 is equipped The perspective view which arrange | positioned the vertical guide plate (12 sheets) with which the hydroelectric generator of FIG. 1 is provided radially. The figure which looked at the water speed | velocity increaser of the submersible hydroelectric generator which concerns on 1st embodiment from the horizontal direction. 1 is a perspective view of a water flow speed increaser for an underwater hydroelectric generator according to a first embodiment. FIG. 2 is a perspective view of a rotor blade portion in which twelve water flow speed increasers are arranged radially around the rotor blade portion included in the hydroelectric generator of FIG. 1. The figure which shows the correspondence of the water flow with respect to the rotary blade of the vertical guide plate and rotary blade part which concerns on 1st embodiment of this invention. The figure which shows the correspondence of the horizontal guide plate which concerns on 1st embodiment of this invention, and the water flow with respect to the rotary blade of a rotary blade part. The figure which showed the relationship of the water flow inflow and drainage at the time of combining the rotary blade assembly part and twelve water flow speed-up gears arranged radially, and setting the rotary shaft of the rotary blade part horizontally. The figure which showed the relation between water entry and drainage when twelve vertical guide plates are arranged in a radial pattern and the rotor blades are arranged at the center. The figure which looked at the relationship between the water flow with respect to the rotary blade part of the hydroelectric power generation apparatus which concerns on 2nd embodiment of this invention, and the rotary blade part which installed the bidirectional | two-way water flow vertical guide plate from the upper part. The perspective view and the figure seen from the side which showed the horizontal guide plate of the underwater electric power generating apparatus which concerns on 3rd embodiment of this invention. The perspective view which arrange | positioned 12 vertical guide plates radially arrange | positioned radially of this invention and 3rd embodiment radially. The perspective view which showed the water flow speed-up device using the donut-shaped guide plate which cut out the center part of the circular horizontal guide plate of this invention and 3rd embodiment. The perspective view which showed the water flow speed up device which covered the doughnut-shaped part with the rotary bearing board by the circular horizontal induction | guidance | derivation board of this invention and 3rd embodiment. The perspective view which showed the water speed | velocity increaser which provided the drain outlet which can control a drain opening-and-closing plate in this invention and 3rd embodiment. The figure from the upper part which showed the rotary bearing plate which attached the drainage opening-and-closing plate and the drainage opening-and-closing plate in this invention, 3rd embodiment. The figure from the upper part which showed the relative arrangement | positioning of the drainage opening-and-closing plate and rotary blade attached to the water flow speed increaser and rotary bearing board of this invention.

DESCRIPTION OF SYMBOLS 1, Underwater power generator 2, Generator 3, Rotating shaft 4, 5, 6, 7 Rotary blade part 4a-f, 5a-f, 6a-f, 7a-f Blade | wing part 8, Water flow speed increaser 8U, Water flow amplification Portions 9 and 9a Bearings 20a and 20b, horizontal guide plates 30 (a to l) vertical guide plates 40a and 40b bidirectional vertical guide walls 41a to f bidirectional horizontal guide plate 50, bearing plate 60 of the third embodiment, The rotary bearing plate 61 provided with the drain port of the third embodiment, the drain port opening / closing plate 62 of the third embodiment, the drain port opening / closing plate 63 using the hinge of the third embodiment, and the drain port opening / closing plate of the third embodiment. Hinge 80, water flow speed increaser 80U, water flow speed increasing portion 200 (a, b), horizontal guide plate 300 (a to l) of the third embodiment, vertical guide plate 81U of the third embodiment, third embodiment The water flow speed increasing part 82U provided with the rotary bearing plate of the water, the water provided with the drain port on the rotary bearing plate of the third embodiment Flow speed increasing part

Claims (12)

  In order to induce water flow, two horizontal guide plates or two horizontal guide plates with a wide angle on the water inlet side and a wider plate width and a plate interval with the width gradually reduced in the direction of the rotor blades. The rotary wing part arranged between the plates can handle water flow from the normal direction of the rotation axis of the rotary wing part to all directions (360 degrees) including both directions. An underwater power generator.   In order to induce water flow, two horizontal guide plates or two horizontal guide plates with a wide angle on the water inlet side and a wider plate width and a plate interval with the width gradually reduced in the direction of the rotor blades. In the rotor blade portion disposed between the plates, the two horizontal guide plates in the portion where the rotor blade portion is cut out are cut out from the normal direction of the rotation axis of the rotor blade portion. An underwater power generator characterized by being able to handle water flow in all directions (360 degrees) including both sides.   In order to induce water flow, a plurality of vertical guide plates are used. The water inlet side is wide-angled with respect to the normal direction with respect to the rotation axis and its width is increased, and the width is gradually increased in the direction of the rotor blades. It is small and is guided to the blade part, and is characterized by being able to cope with water flow from the normal direction of the main axis of the rotary blade part to all directions (360 degrees) including both directions. The underwater power generation device according to claim 1.   The water inlet side of the flow channel has a larger opening area and a water flow speed increaser that gradually reduces the opening area in the direction of the blades, providing a unidirectional and bilateral position from the normal direction of the main axis of the rotor blades. An underwater power generation device that is compatible with water flow up to all directions (360 degrees) including   In order to induce water flow, two horizontal guide plates or two horizontal guide plates with a wide angle on the water inlet side and a wider plate width and a plate interval with the width gradually reduced in the direction of the rotor blades. In the rotary blade portion disposed between the plates, the range where the two horizontal guide plates of the portion where the rotary blade portion is cut out is covered and fixed by the bearing plate of the rotary blade portion. The underwater power generation device according to claim 2, wherein   The underwater power generator according to any one of claims 2 to 5, wherein a drainage that can be controlled can be provided in a bearing plate of the rotary blade portion.   The underwater power generation device according to claim 3, wherein a water flow guide destination of the vertical guide plate and the water flow speed increaser is directed to the blade receiving port.   The vertical guide plate and the water channel of the water flow amplifier are structured not to be guided to the back surface side even when the back surface side of the blade portion water receiving port of the rotary blade portion rotates and returns. The underwater power generation device according to 3 to 7.   The underwater power generation device according to claim 1, wherein the water receiving port of the blade portion has a cavity, and a back surface of the blade portion has an acute angle or a streamline shape.   The underwater power generation apparatus according to claim 1, wherein the rotary blade part is attached singly or in a plurality of stages.   The underwater power generator according to claim 1, wherein at least three blade portions are provided.   The underwater power generation device according to claim 1, wherein the water inlet side opening and the water discharge side opening are not separated but are used in combination.

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