JP2018066367A - Power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generation system capable of reducing running cost and also enhancing a power generation amount.SOLUTION: A power generation system 1 is configured to convert positional energy of fluid lifted up to a predetermined height position by wave power into electricity through a power generation unit 110. The power generation system includes: a floating body 10; a conveyance unit 20 configured to convey the fluid F up to the predetermined height position by wave power in a case where the floating body 10 receives the wave power; and a feeding unit 70 configured to feed the fluid F conveyed by the conveyance unit 20 downward. The power generation unit 110 is configured to be driven by the positional energy of the fluid fed by the feeding unit 70, and to generate power.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power generation system.

  2. Description of the Related Art Conventionally, power generation apparatuses that generate power using water pumped up to a predetermined height have been proposed. Such a power generator includes a generator motor that is driven as a generator during a power generation operation and is driven as an electric motor during a pumping operation, and a pump turbine connected by a drive shaft of the generator motor. And this power generation device generates electricity by driving the motor by rotating the pump turbine by the water flowing from the upper pond to the lower pond during the day when the power consumption is high, and it supplies power from the outside at night when the power consumption is low In response, the generator motor is driven to rotate the pump turbine to pump the water in the lower pond to the upper pond.

JP 2003-166461 A

  However, in the conventional power generation device, as described above, since the generator motor is connected to the pump turbine, the power generation operation cannot be performed during the pumping operation. It was difficult. In addition, as described above, since the pumping operation is performed by receiving electric power supplied from the outside, the power cost required for this electric power is increased. Therefore, it is very difficult to reduce the running cost of the power generation apparatus. It was.

  This invention is made | formed in view of the above, Comprising: It aims at providing the electric power generation system which can raise electric power generation amount, reducing running cost.

  In order to solve the above-described problems and achieve the object, the power generation system according to claim 1 converts the potential energy of the fluid raised to a predetermined height position by the wave force into electricity through the power generation means. In the power generation system, a floating body, and when the floating body receives wave force, a conveyance means that conveys the fluid to the predetermined height position by the wave force, and the conveyance means Feeding means for sending the fluid downward, and the power generation means generates power when the power generation means is driven by the potential energy of the fluid sent by the feeding means.

  The power generation system according to claim 2 is the power generation system according to claim 1, wherein the transporting means is a flow means connected to the floating body, and the floating body receives a wave force. A flow means for causing the fluid to flow, a delivery flow path for sending the fluid flowed by the flow means, and an ascending flow path for sending the fluid delivered from the delivery flow path to the predetermined height position. The flow path diameter of the ascending flow path is made smaller than the flow path diameter of the delivery flow path.

  The power generation system according to claim 3 is the power generation system according to claim 2, wherein the feeding means is a descending channel provided with the power generation means, and the fluid sent from the transport means Is a downward flow path that drives the power generation means by flowing downward, and a return flow path that is connected to the upward flow path and the downward flow path, and is sent from the downward flow path And a return flow path for sending fluid toward the ascending flow path.

  The power generation system according to claim 4 is the power generation system according to claim 3, wherein the first valve that restricts the inflow of the fluid from the ascending flow path to the delivery flow path, and the return flow path. And a second valve that restricts the inflow of the fluid into the ascending flow path.

  The power generation system according to claim 5 is the power generation system according to claim 1, wherein the transporting means is a flow means connected to the floating body, and a flow means for flowing the fluid; One flow path, a second flow path connected to one end of the first flow path, a third flow path connected to the other end of the first flow path, and the second flow path A fourth channel connected to an end of the third channel opposite to the first channel, a fourth channel connected to the end of the third channel opposite to the first channel, and the first channel A second valve that connects the first flow path and the third flow path from a first connection portion that connects the first flow path and the second flow path. A first valve that restricts the inflow of the fluid to the connection portion and a second valve that is disposed in the second flow path, and connects the second flow path and the fourth flow path. A second valve that restricts the inflow of the fluid from the three connection parts to the first connection part, and a third valve that is disposed in the third flow path, wherein the third flow path and the fourth flow path A third valve for restricting the inflow of the fluid from the fourth connection part connecting the flow path to the second connection part, and a fourth valve disposed in the fourth flow path, A flow path connected to the fourth valve for restricting the inflow of the fluid from the three connection parts to the fourth connection part, the first connection part, and the fourth connection part, wherein the flow means A flow path for sending the fluid flowed by the flow path toward the second flow path or the fourth flow path, and an ascending flow path connected to the third connection portion, and An ascending flow path for feeding the fluid sent through the second flow path or the fourth flow path to the predetermined height position, and the feeding means includes: A downward flow path provided with the power generation means, wherein the fluid sent from the transport means flows downward and drives the power generation means; the downward flow path; A return channel connected to the two connection parts, the return channel sending the fluid sent from the descending channel toward the second connection part.

  A power generation system according to claim 6 is the power generation system according to any one of claims 2 to 5, wherein the power generation system is provided in a flow path through which water flows, wherein the floating body and the Water storage means provided to accommodate the transport means, the water storage means for temporarily storing the water flowing in from the upstream side of the flow path, the water storage means, the internal water level of the water storage means is predetermined An outflow means is provided for causing the water stored in the water storage means to flow out to the downstream side of the flow path when the value exceeds the value.

  A power generation system according to claim 7 is the power generation system according to claim 1, wherein the power generation system is a collection unit provided to accommodate the floating body, and the wave power flowing into the collection unit is generated. A collecting means for collecting, and when the floating body receives a wave force collected by the collecting means, the conveying means converts the wave force into a rotating force, and the rotating force. Pumping means for pumping the fluid to the predetermined height position using the rotational force converted by the converting means.

  According to the power generation system of the first aspect, when the floating body receives wave force, the conveying means for conveying the fluid to a predetermined height position by the wave force, and the fluid conveyed by the conveying means. And the power generation means generates power by driving the power generation means by the potential energy of the fluid sent by the feed means, so that the fluid is brought to a predetermined height position. Since power generation can be performed while being transported, the power generation amount can be improved as compared with the conventional technology. In addition, since wave power is used as power for transporting a fluid to a predetermined height position, it is not necessary to use power as the power as in the prior art, so power cost can be reduced and running cost can be reduced. It becomes possible.

  According to the power generation system of the second aspect, since the flow path diameter of the ascending flow path is smaller than the flow path diameter of the delivery flow path, the size of the flow path diameter of the rise flow path is made larger than the flow path diameter of the delivery flow path. The load due to the weight of the fluid in the delivery channel can be reduced compared to the case where the delivery channel is set to be equal to or greater than the specified value. Thus, the fluid can be reliably sent to the height position.

  According to the power generation system of claim 3, the feeding means is a return channel connected to the ascending channel and the descending channel, and the fluid sent from the descending channel is supplied to the ascending channel. Since the return flow path is provided, the flow path for circulating the fluid can be formed by the ascending flow path, the descending flow path, and the return flow path, and the fluid can be reused.

  According to the power generation system of claim 4, the first valve that restricts the inflow of fluid from the ascending channel to the delivery channel, and the second valve that restricts the inflow of fluid from the return channel to the ascending channel Therefore, it is possible to avoid the inflow of fluid from the descending channel to the ascending channel and to avoid the inflow of fluid from the ascending channel to the delivery channel, so that the power generation system can be operated stably. Is possible.

  According to the power generation system of claim 5, the transport means includes a first flow path, a second flow path, a third flow path, a fourth flow path, a first valve, and a second valve. A third valve, a fourth valve, a delivery flow path for sending the fluid flowed by the flow means toward the second flow path or the fourth flow path, and the second flow path or the fourth flow path from the delivery flow path; And a rising flow path that sends the fluid sent through the carrier to a predetermined height position, and the feeding means drives the power generating means by flowing downwardly the fluid sent from the conveying means. And a return flow path for sending the fluid sent from the descending flow path toward the second connecting portion, so that even when the floating body moves up and down by wave force, the fluid is kept at a predetermined height. It can be transported to this position. Therefore, the fluidity of the fluid in each of the conveying means and the feeding means can be improved, and the power generation amount can be increased.

  According to the power generation system of the sixth aspect, when the internal water level of the water storage means becomes a predetermined value or more, the water storage means causes the water stored in the water storage means to flow out downstream of the flow path. Since the outflow means is provided, it is easier to generate waves in the water storage means than in the case where the outflow means is not provided, so that the flow means can be operated effectively.

  According to the power generation system of claim 7, when the transport means receives the wave force collected by the collection means, the rotating force conversion means for converting the wave force into a rotational force, and the rotation And a pumping means for pumping the fluid to a predetermined height position using the rotational force converted by the force converting means, so that the wave force received by the floating body is higher than when no collecting means is provided. The size can be increased. Therefore, since a large wave force can be transmitted to the rotational force conversion means, the pumping unit can be operated effectively.

It is a schematic diagram which shows the electric power generation system which concerns on Embodiment 1 of this invention. 5 is a schematic diagram showing a power generation system according to Embodiment 2. FIG. It is a figure which shows the flow state of the fluid in the electric power generation system in case the wave height of a wave is high. It is a figure which shows the flow state of the fluid in the electric power generation system in case the wave height of a wave is low. It is a schematic diagram which shows the electric power generation system which concerns on Embodiment 3, (a) is a figure which shows the state in which the outflow part is not rotating, (b) is a figure which shows the state in which the outflow part rotated. It is a schematic diagram which shows the electric power generation system which concerns on Embodiment 4, (a) is a top view, (b) is AA arrow sectional drawing of (a). It is a figure which shows the modification of the electric power generation system which concerns on Embodiment 4, and is a figure which shows the area | region corresponding to Fig.6 (a). It is a figure which shows the modification of the electric power generation system which concerns on Embodiment 4, and is a figure which shows the area | region corresponding to Fig.6 (a).

  Embodiments of a power generation system according to the present invention will be described below in detail with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be described, then [II] the specific content of the embodiment will be described, and finally, [III] a modification to the embodiment will be described. However, the present invention is not limited to the embodiments.

[I] Basic Concept of Embodiment First, the basic concept of the embodiment will be described. Embodiments generally relate to a power generation system that converts the potential energy of a fluid raised to a predetermined height position by wave force into electricity via power generation means.

  Here, the “fluid” has fluidity. The “fluid” is a concept including, for example, a liquid such as water or oil and a semi-solid or solid such as a polymer gel. In the embodiment, the “fluid” will be described as water. Further, the “power generation means” is a concept that converts external force into electricity and includes, for example, a dynamo. Moreover, although the installation object of a power generation system is arbitrary, for example, an offshore, a quay, a flow path, etc. correspond. Hereinafter, in Embodiments 1 and 2, the case where the power generation system is provided offshore will be described, in Embodiment 3, the case where the power generation system is provided in the flow path will be described, and in Embodiment 4, the power generation system will be described. The case where it is provided on the quay will be described.

[II] Specific Contents of Embodiment Next, specific contents of the embodiment will be described.

[Embodiment 1]
First, the first embodiment will be described. In this form, the power generation system is provided offshore.

(Constitution)
First, the configuration of the power generation system according to Embodiment 1 will be described. FIG. 1 is a schematic diagram showing a power generation system according to Embodiment 1 of the present invention. In the following description, the X direction in FIG. 1 is the left-right direction of the power generation system (the + X direction is the left direction of the power generation system, the −X direction is the right direction of the power generation system), and the Y direction in FIG. (The -Y direction is the upward direction of the power generation system, the + Y direction is the downward direction of the power generation system), the direction orthogonal to the X direction and the Y direction, or the Z direction of FIG. The direction or + Z direction is referred to as the front direction of the power generation system, the direction reaching the back side of FIG. As shown in FIG. 1, the power generation system 1 includes a floating body 10, a transport unit 20, a feed unit 70, and a power generation unit 110.

(Configuration-floating body)
The floating body 10 is a receiving means that receives wave force, and is a floating means in which at least a part of the floating body 10 can float on the water surface. The floating body 10 is a substantially box-shaped body (such as a rectangular parallelepiped in FIG. 1) formed of, for example, a resin material, a rubber material, a rust-proof metal material, and the like, as shown in FIG. It is floating. Further, as shown in FIG. 1, an insertion hole 11 is formed in the floating body 10. The insertion hole 11 is a through hole for inserting an ascending flow path 50 of the transport unit 20 described later. The insertion hole 11 is formed in a shape slightly larger than the flow path diameter of the ascending flow path 50 to be described later, and is disposed on the upper surface (or lower surface) of the floating body 10.

  Further, the specific shape and size of the floating body 10 are arbitrary, but the length in the direction along the wave traveling direction in the floating body 10 (the length in the left-right direction of the floating body 10 in FIG. 1). Is set shorter than the wave wavelength. With such a length, for example, compared to a case where the length of the floating body 10 along the wave traveling direction is longer than the wave wavelength, the fluidized portion 30 can be operated effectively.

(Configuration-transport section)
The conveyance unit 20 is a conveyance unit that conveys the fluid F to a predetermined height position by the wave force when the floating body 10 receives the wave force. The transport unit 20 is formed of, for example, a resin material, a rust-proof metal material, and the like. The transport unit 20 is provided near the floating body 10 and is fixed to a fixing member (not shown) by a fixing tool or the like. Further, as shown in FIG. 1, the transport unit 20 includes a flow unit 30, a delivery channel 40, an ascending channel 50, and a first valve 60.

(Structure-Transport section-Fluid section)
The flow unit 30 is a flow unit that causes the fluid F to flow when the floating body 10 receives wave force. As shown in FIG. 1, the fluid part 30 is connected to the floating body 10 and includes a fluid part main body 31 and connection parts 32 and 33.

  The fluid part main body 31 is a basic structure of the fluid part 30 and is formed of a hollow body (for example, a hollow cylindrical body). Further, as shown in FIG. 1, in the flow section main body 31, at least a part of the flow section main body 31 is accommodated in the delivery channel 40, and the upper surface (or lower surface) of the flow section main body 31 is in the left-right direction. And it arrange | positions along the front-back direction.

Further, the specific shape and size of the fluidized portion main body 31 are arbitrary, but in the first embodiment, the volume of the fluidized portion main body 31 is about the buoyancy of the fluidized portion main body 31 (= seawater density ρ × Gravity acceleration g × volume V of flow section main body 31 / area A of flow section main body 31) is the weight of fluid F in sending channel 40 and rising channel 50 (= density of seawater ρ × gravity acceleration g × water surface). (The height h up to a predetermined height position to be described later) can be balanced (or the buoyancy of the fluid section 31 is generated by the fluid F in the delivery channel 40 and the ascending channel 50). May be set to be greater than the weight). For example, when the height h from the water surface to a predetermined height position to be described later is h = 10 m and the area A of the fluidized portion main body 31 is 3.4 m ² , the volume V of the fluidized portion main body 31 is a predetermined value described later from the water surface. The height h up to the height position of H × the area A of the fluid main body 31 = 10 m × 3.4 m ² = 34 m ³ (is formed to be a so-called floating piston).

  The connection parts 32 and 33 are connection means for connecting the floating body 10 and the fluid part main body 31. These connection portions 32 and 33 are formed of thick rod-like bodies (or plate-like bodies or the like) formed in a substantially U shape, and as shown in FIG. Either one of the ends is connected to the floating body 10 (in FIG. 1, the lower end of the floating body 10) by a fixture or the like, and the other end of each of the connection portions 32 and 33 is The fluid section body 31 (in FIG. 1, the lower end portion of the fluid section body 31) is connected by a fixture or the like.

(Configuration-transport section-delivery flow path)
The delivery channel 40 is a channel that delivers the fluid F that has been fluidized by the fluidization unit 30 and is formed of, for example, a substantially linear tubular body (for example, a circular tubular body). The delivery flow path 40 is provided at a position where the fluid F in the delivery flow path 40 can be pressed by the fluidizing section 30. Specifically, as shown in FIG. Between the lower ends of the connecting portions 32 and 33, the delivery channel 40 is provided so that the axial direction thereof is substantially along the vertical direction.

  The specific shape and size of the delivery channel 40 are arbitrary, but in the first embodiment, they are as follows. That is, as shown in FIG. 1, the flow path diameter of the part where the flow part main body 31 is movable among the parts of the delivery flow path 40 is set to be larger than the outer diameter of the flow part main body 31. doing. An embedding member 34 for filling the gap is attached to the gap between the delivery channel 40 and the fluid main body 31. The specific configuration of the embedding member 34 is arbitrary. For example, the embedding member 34 may be formed of a thin-film rubber material having a U-shaped longitudinal section. Thereby, since the embedding member 34 is easy to deform | transform, the resistance which the embedding member 34 receives by deform | transforming following the movement of the flow part main body 31 can be reduced. Further, in order to reduce the frictional resistance (so-called reduction loss) that occurs when the fluid F is sent from the delivery flow path 40 to the rise flow path 50, the part on the rise flow path 50 side of the part of the delivery flow path 40 is The diameter of the flow path of the delivery flow path 40 is set to be a trumpet shape that increases as it goes downward.

  In addition, although the method for installing the delivery channel 40 is arbitrary, in the first embodiment, the delivery channel 40 is installed in the vicinity of the water surface as shown in FIG. Such an installation makes it easy to move the fluid main body 31 accommodated in the delivery channel 40 along with the long-period vibration of the wave. Therefore, compared with the case where the delivery flow path 40 is installed at a position relatively deeper than the water surface, the fluid F in the delivery flow path 40 and the ascending flow path 50 can be easily flowed, and the transport unit 20 is effectively operated. It becomes possible to make it.

  As shown in FIG. 1, an insertion port 41 and a first connection port 42 are formed in the delivery channel 40. The insertion port 41 is an opening through which the fluid main body 31 is inserted into the delivery channel 40 and is disposed at the lower end of the delivery channel 40. The first connection port 42 is an opening for connecting the delivery channel 40 to the ascending channel 50, and is arranged at the upper end of the delivery channel 40.

(Configuration-transport section-ascending flow path)
The ascending channel 50 is a channel that sends the fluid F delivered from the delivery channel 40 to a predetermined height position. For example, the ascending channel 50 has an inverted L shape (or an inverted J shape, etc.) and is axially Each of both end portions is formed of a tubular body (for example, a circular tubular body or the like) having an open end. Here, regarding the setting of the “predetermined height position”, specifically, it is a position where the frictional resistance (so-called friction loss) generated when the fluid F flows through the ascending flow path 50 can be made as small as possible. The power generation unit 110 is set at a position where the desired power generation amount can be generated by the potential energy of the fluid F raised by the flow path 50, for example, about 10 m to 100 m upward from the upper end of the delivery flow path 40. It is set at a distant position. The ascending channel 50 is provided from the upper end of the delivery channel 40 to a predetermined height position. Specifically, as shown in FIG. The L-shaped vertical bar portion is arranged along the vertical direction, and the L-shaped horizontal bar portion of the ascending flow path 50 faces the feeding portion 70 side. The portion is connected to the delivery channel 40 via the first connection port 42.

  The specific shape and size of the ascending flow path 50 are arbitrary, but in the first embodiment, as shown in FIG. For example, the size of the cross-sectional area of the flowing water in the ascending flow path 50 is set to be about 1/10 times the size of the cross-sectional area of the flowing water in the delivery flow path 40. doing. However, the present invention is not limited to this, and may vary depending on the type of fluid F, the shape and size of the ascending flow path 50, and so on, and may be set based on experimental results. With this setting, the load due to the weight of the fluid F in the delivery flow path 40 is less than that when the flow path diameter of the ascending flow path 50 is set equal to or larger than the flow path diameter of the delivery flow path 40. The kinetic energy of the fluid F flowing through the delivery channel 40 can be improved (for example, from the viewpoint of the theory based on a one-dimensional inviscid flow, the size of the cross-sectional area of the flowing water in the ascending channel 50) Is 1/10 times the size of the cross-sectional area of the flowing water in the delivery channel 40, the flow rate of the fluid F flowing through the ascending channel 50 is 10 times the flow rate of the fluid F flowing through the delivery channel 40. Therefore, the kinetic energy of the fluid F flowing through the ascending flow path 50 is 100 times the kinetic energy of the fluid F flowing through the delivery flow path 40). Therefore, even when the predetermined height position is set relatively high, the fluid F can be reliably sent from the delivery flow path 40 to the predetermined height position via the ascending flow path 50.

  Further, as shown in FIG. 1, a second connection port 51 is formed in the ascending flow path 50. The second connection port 51 is an opening for connecting a return channel 90 described later to the ascending channel 50, and corresponds to an end portion of the ascending channel 50 on the downstream side of the return channel 90 described later. Placed in the part.

(Configuration-transport section-first valve)
The first valve 60 is a valve that restricts the inflow of the fluid F from the ascending flow path 50 to the delivery flow path 40. The first valve 60 is configured using a known valve body, is provided inside the ascending channel 50, and is fixed to the ascending channel 50 by a fixture or the like. Here, although the installation method of the first valve 60 is arbitrary, in the first embodiment, as shown in FIG. 1, the first valve 60 is installed above the second connection port 51, for example, the second connection port. It is installed in the vicinity of 51. As a result, even when a gap is generated due to gravity falling in the portion below the first valve 60 in the portion of the ascending flow path 50 due to gravity, the fluid F sent from the return flow path 90 described later is used. The gap can be eliminated, and the function of the ascending channel 50 can be maintained. Since the first valve 60 can avoid the inflow of the fluid F from the ascending flow path 50 to the delivery flow path 40, the power generation system 1 can be stably operated.

(Configuration-Feeder)
The feed unit 70 is a feed unit that sends the fluid F transported by the transport unit 20 downward. The feed unit 70 is formed of, for example, a resin material, a rust-proof metal material, and the like, is provided in the vicinity of the transport unit 20, and is fixed to a fixing member (not shown) by a fixing tool or the like. As shown in FIG. 1, the feeding unit 70 includes a descending flow path 80, a return flow path 90, and a second valve 100.

(Configuration-Feeding part-Down flow path)
The descending flow path 80 is a flow path that drives the power generation section 110 when the fluid F sent from the transport section 20 flows downward, and as shown in FIG. 1, as shown in FIG. A descending channel 82, a second reservoir 83, a second descending channel 84, and a storage unit 85 are provided.

  The first storage part 81 is a storage means for temporarily storing the fluid F transported by the transport part 20, for example, a box-shaped body (or a hollow cylindrical body or the like) having an open upper surface. It is formed (the same applies to the second reservoir 83). The first storage portion 81 is provided below the downstream end of the ascending flow path 50. Specifically, as shown in FIG. It is directly below and is arranged at a predetermined interval from the ascending flow path 50. As shown in FIG. 1, the first storage portion 81 is formed with a first connection port 81 a. The first connection port 81 a is an opening for connecting the first descending flow path 82 to the first reservoir 81, and is disposed at the lower end of the first reservoir 81.

  The first descending flow path 82 is a flow path for sending the fluid F sent from the first storage section 81 to the second storage section 83, and is, for example, linear and has both ends in the axial direction open ends. It is formed with the tubular body which is (for example, a circular tubular body etc.). As shown in FIG. 1, the first descending flow path 82 is provided below the first reservoir 81, and the upstream end of the first descending flow path 82 is connected to the first connection port 81a. The first storage part 81 is connected to the first storage part 81. Further, as shown in FIG. 1, a second connection port 82 a is formed in the first descending flow path 82. The 2nd connection port 82a is an opening for connecting the accommodating part 85 to the 1st storage part 81, and is a part corresponding to the accommodating part 85 in the 1st downward flow path 82 (In FIG. 1, the 1st downward flow path 82 is shown. In the vicinity of the lower end of the

  The second reservoir 83 is a reservoir for temporarily storing the fluid F sent from the first descending flow path 82. The second reservoir 83 is provided below the downstream end of the first descending flow path 82. Specifically, as shown in FIG. The first descending flow path 82 is disposed at a predetermined interval immediately below the end of the first descending flow path 82. In addition, as shown in FIG. 1, a third connection port 83 a is formed in the second reservoir 83. The third connection port 83 a is an opening for connecting the second descending flow path 84 to the second reservoir 83 and is disposed at the lower end of the second reservoir 83.

  The second descending flow path 84 is a flow path for sending the fluid F sent from the second storage portion 83 to the return flow path 90, and is, for example, L-shaped, and each of both end portions in the axial direction is an open end. It is formed with the tubular body which is (for example, a circular tubular body etc.). As shown in FIG. 1, the second descending flow path 84 is provided below the second reservoir 83, and the upstream end of the second descending flow path 84 is the third connection port. The second reservoir 83 is connected via 83a.

  The accommodating part 85 is an accommodating means for accommodating the power generation part 110, is a hollow body whose side surface on the first descending flow path 82 side is open, and has a shape capable of accommodating the power generation part 110. And a hollow body having a size. Moreover, as shown in FIG. 1, this accommodating part 85 is provided in the 1st downward flow path 82, and is connected with the 1st downward flow path 82 via the 2nd connection port 82a.

(Configuration-Feeding section-Return flow path)
The return channel 90 is a channel that sends the fluid F sent from the descending channel 80 toward the ascending channel 50. For example, the return channel 90 is L-shaped, and both end portions in the axial direction are open ends. It is formed of a certain tubular body (for example, a circular tubular body). The return channel 90 is connected to the ascending channel 50 and the descending channel 80. Specifically, as shown in FIG. 1, the upstream end of the return channel 90 has a second descending portion. While being connected to the downstream end of the flow path 84, the downstream end of the return flow path 90 is connected to the ascending flow path 50 through the second connection port 51 of the transport unit 20. With such a return channel 90, a channel for circulating the fluid F can be formed by the ascending channel 50, the descending channel 80, and the return channel 90, and the fluid F can be reused.

(Configuration-Feeder-Second valve)
The second valve 100 is a valve that restricts the inflow of the fluid F from the return channel 90 to the ascending channel 50. The second valve 100 is configured by using a known valve body, and is provided inside the return channel 90 (for example, near the downstream end of the return channel 90 as shown in FIG. 1). And is fixed to the return channel 90 by a fixture or the like. Since the second valve 100 can avoid the inflow of the fluid F from the descending flow path 80 to the ascending flow path 50, the power generation system 1 can be stably operated.

(Configuration-power generation unit)
The power generation unit 110 is a power generation unit that generates power by being driven by the potential energy of the fluid F sent by the feed unit 70, and includes a dynamo and a power generation board as shown in FIG. (Not shown).

  The dynamo is a basic structure of the power generation unit 110, and is configured using, for example, a known dynamo having a rotor whose power generation direction is one direction, and is accommodated in the accommodation unit 85. It is fixed to the accommodating portion 85 with a fixture or the like.

  The power generation board is a board on which an electric circuit (not shown) for realizing various functions of the power generation unit 110 is mounted. For example, the power generation board is configured by using a known board for a power generation device and the like, and the accommodation unit 85. Is provided outside (or inside) and is fixed to the accommodating portion 85 with a fixture or the like. In addition, a power conversion unit and a power output unit are also mounted on the power generation board (both not shown). Among these, the power conversion unit is power conversion means for converting the power generated by the dynamo into predetermined power, and is electrically connected to the dynamo via a wiring (not shown). The power output unit is a power output unit for outputting the power converted by the power conversion unit to an external device (not shown), and is electrically connected to the external device via a wiring (not shown). .

  Since the power generation system 1 as described above can generate power while transporting the fluid F to a predetermined height position, it is possible to improve the amount of power generation as compared with the conventional technology. In addition, since wave power is used as power for transporting the fluid F to a predetermined height position, it is not necessary to use power as the power as in the prior art, so that power costs can be reduced and running costs can be reduced. Is possible.

(Operation of power generation system)
The operation of the power generation system 1 configured as described above will be described.

  First, in a state where no wave is generated, the fluid F does not flow because the weight of the fluid F in the delivery channel 40 and the ascending channel 50 is balanced with the buoyancy of the floating body 10 (which will be described later). The same applies to the power generation system 1 according to Embodiments 2 and 3). Further, when the lower surface of the floating body 10 receives wave force due to an increase in the wave height, the fluid F in the delivery flow path 40 is pressed by the flow portion 30 based on Pascal's principle. After being sent from the path 40 to a predetermined height position via the ascending channel 50, it is sent downward from the ascending channel 50 to the descending channel 80. Thereby, the dynamo of the power generation unit 110 housed in the housing portion 85 of the descending flow path 80 can generate power by being driven by the potential energy of the fluid F sent to the descending flow path 80. Thereafter, the fluid F sent to the descending channel 80 is returned to the ascending channel 50 through the return channel 90.

(effect)
As described above, according to the first embodiment, when the floating body 10 receives wave force, it is carried by the carrying unit 20 that carries the fluid F to a predetermined height position by the wave force and the carrying unit 20. And the power generation unit 110 generates power when the power generation unit 110 is driven by the potential energy of the fluid F sent by the feed unit 70. Since the power generation can be performed while the fluid F is transported to a predetermined height position, the power generation amount can be improved as compared with the conventional technique. In addition, since wave power is used as power for transporting the fluid F to a predetermined height position, it is not necessary to use power as the power as in the prior art, so that power costs can be reduced and running costs can be reduced. Is possible.

  Further, since the flow path diameter of the ascending flow path 50 is smaller than the flow path diameter of the delivery flow path 40, the flow path diameter of the ascending flow path 50 is set to be equal to or larger than the flow path diameter of the delivery flow path 40. Compared to the case, the load due to the weight of the fluid F in the delivery flow path 40 can be reduced, and even when the predetermined height position is set to be relatively high, a predetermined height is set from the delivery flow path 40 through the ascending flow path 50. The fluid F can be reliably sent to the position.

  The feeding unit 70 is a return channel 90 connected to the ascending channel 50 and the descending channel 80, and sends the fluid F sent from the descending channel 80 toward the ascending channel 50. Since the return channel 90 is provided, a channel for circulating the fluid F can be formed by the ascending channel 50, the descending channel 80, and the return channel 90, and the fluid F can be reused.

Also, a first valve 60 that restricts the inflow of the fluid F from the ascending channel 50 to the delivery channel 40, a second valve 100 that restricts the inflow of the fluid F from the return channel 90 to the ascending channel 50, Since the flow of the fluid F from the descending flow path 80 to the rising flow path 50 can be avoided and the flow of the fluid F from the rising flow path 50 to the delivery flow path 40 can be avoided, the power generation system 1 is stabilized. Can be operated.
[Embodiment 2]
Next, a second embodiment will be described. This form is different from the first embodiment, and is a form in which the power generation system is provided offshore. In addition, about the component similar to Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(Constitution)
Initially, the structure of the electric power generation system which concerns on Embodiment 2 is demonstrated. FIG. 2 is a schematic diagram showing a power generation system according to the second embodiment. As shown in FIG. 2, the power generation system 101 according to the second embodiment includes a floating body 10, a transport unit 20, a feeding unit 70, and a power generation unit 110.

(Configuration-transport section)
As shown in FIG. 2, the transport unit 20 includes a flow unit 30, a delivery channel 40, a bridge channel 120, and an ascending channel 50.

(Configuration-transport section-delivery flow path)
The delivery flow path 40 is a flow path for delivering the fluid F that has been flowed by the flow section 30 toward the second flow path 121b (to be described later) or the fourth flow path 121d (to be described later) of the bridge flow path 120, and is shown in FIG. As described above, the storage channel 43, the first communication channel 44, and the second communication channel 45 are provided.

  The accommodation flow path 43 is a flow path that accommodates the fluid part main body 31, a part of the connection part 32, and a part of the connection part 33, and is substantially linear, for example, and includes the fluid part main body 31, the connection part. It is formed of a tubular body (for example, a circular tubular body or the like) having a shape and a size capable of accommodating a part of 32 and a part of the connecting portion 33. As shown in FIG. 2, the accommodation flow path 43 is provided so that the axial direction of the accommodation flow path 43 is substantially along the vertical direction between the lower end of the floating body 10 and the lower end portions of the connection portions 32 and 33. ing. As shown in FIG. 2, the accommodation flow path 43 is formed with a first insertion port 43 a, a second insertion port 43 b, a first connection port 43 c, and a second connection port 43 d. The first insertion port 43a is an opening for inserting the connection portion 32 into the delivery channel 40, and the second insertion port 43b is an opening for inserting the connection unit 33 into the delivery channel 40, It is arrange | positioned at the lower end part of the delivery flow path 40, respectively. The first connection port 43 c is an opening for inserting the first communication channel 44 into the accommodation channel 43, and is disposed at the upper end of the accommodation channel 43. The second connection port 43 d is an opening for inserting the second communication channel 45 into the accommodation channel 43, and is disposed at the lower end of the accommodation channel 43.

  The first communication flow path 44 is a flow path that connects the accommodation flow path 43 and a first connection portion 122a of the bridge flow path 120 to be described later. Each is formed of a tubular body (for example, a circular tubular body) having an open end. The first communication channel 44 is connected to the accommodation channel 43 and a first connection part 122a described later. Specifically, as shown in FIG. 2, the accommodation channel 43 of the first communication channel 44 is provided. The end on the side is connected to the accommodating flow path 43 via the first connection port 43c, and the end on the bridge flow path 120 side of the first communication flow path 44 is connected to a first connection part 122a described later. ing. Further, the specific shape and size of the first communication channel 44 are arbitrary, but in the second embodiment, the size of the channel diameter of the first communication channel 44 is set as shown in FIG. It is set smaller than the size of the flow path diameter of the accommodation flow path 43 (the same applies to the second communication flow path 45 and the bridge flow path 120).

  The second communication flow path 45 is a flow path that connects the accommodation flow path 43 and a fourth connection portion 122d of the bridge flow path 120 described later. For example, the second communication flow path 45 is U-shaped and has both ends in the axial direction. Is formed of a tubular body having an open end (for example, a circular tubular body). The second communication channel 45 is connected to the accommodation channel 43 and a fourth connection part 122d described later. Specifically, as shown in FIG. 2, the accommodation channel 43 of the second communication channel 45 is provided. The end on the side is connected to the accommodating flow path 43 via the second connection port 43d, and the end on the bridge flow path 120 side of the second communication flow path 45 is connected to a fourth connection part 122d described later. ing.

(Configuration-Transport section-Bridge flow path)
The bridge channel 120 is a channel for adjusting the flow direction of the fluid F flowing from the delivery channel 40 to the ascending channel 50, and as shown in FIG. 2, the first channel 121a and the second channel 121b. , Third flow path 121c, fourth flow path 121d, first connection part 122a, second connection part 122b, third connection part 122c, fourth connection part 122d, first valve 123a, second valve 123b, third valve 123c and a fourth valve 123d.

  The first flow path 121 a is a flow path that connects the first communication flow path 44 and the return flow path 90 of the delivery flow path 40. The second flow path 121 b is a flow path that connects the first communication flow path 44 and the ascending flow path 50. The third flow path 121 c is a flow path that connects the second communication flow path 45 and the return flow path 90 of the delivery flow path 40. The fourth flow path 121 d is a flow path that connects the second communication flow path 45 and the ascending flow path 50. The first flow path 121a to the fourth flow path are formed by, for example, a tubular body (for example, a circular tubular body) in which both ends in the axial direction are open ends. Specifically, the channel diameter and the axial length are the same.

  The first connection portion 122a connects the end of the first communication channel 44 on the bridge channel 120 side, one end of the first channel 121a, and one end of the second channel 121b. It is a connection part. The second connection part 122b is a connection part that connects the downstream end of the return flow path 90, the other end of the first flow path 121a, and one end of the third flow path 121c. The third connection part 122c is a connection part that connects the upstream end of the ascending flow path 50, the other end of the second flow path 121b, and one end of the fourth flow path 121d. The fourth connection portion 122d connects the end of the second communication channel 45 on the bridge channel 120 side, the other end of the third channel 121c, and the other end of the fourth channel 121d. It is a connection part. The first connection part 122a to the fourth connection part 122d are each configured using, for example, a known joint member.

  The 1st valve 123a is a valve which restricts inflow of fluid F from the 1st connection part 122a to the 2nd connection part 122b, and is arranged in the 1st channel 121a. The 2nd valve 123b is a valve which restricts inflow of fluid F from the 3rd connection part 122c to the 1st connection part 122a, and is arranged in the 2nd channel 121b. The third valve 123c is a valve that restricts the inflow of the fluid F from the fourth connection portion 122d to the second connection portion 122b, and is disposed in the third flow path 121c. The fourth valve 123d is a valve that restricts the inflow of the fluid F from the third connection part 122c to the fourth connection part 122d, and is disposed in the fourth flow path 121d. These first valve 123a to fourth valve 123d are configured using, for example, a known valve body.

(Configuration-transport section-ascending flow path)
The ascending flow path 50 is a flow path for sending the fluid F sent from the delivery flow path 40 via the second flow path 121b or the fourth flow path 121d of the bridge flow path 120 to a predetermined height position. Specifically, as shown in FIG. 2, the upstream end of the ascending flow path 50 is connected to the third connection part 122 c.

(Configuration-Feeder)
As shown in FIG. 2, the feed unit 70 includes a descending flow path 80 and a return flow path 90. Among these, the return channel 90 is a channel that sends the fluid F sent from the descending channel 80 toward the second connecting portion 122b of the bridge channel 120. Specifically, as shown in FIG. 2, the upstream end of the return channel 90 is connected to the downstream end of the second descending channel 84, and the An end portion on the downstream side of the return channel 90 is connected to the second connection portion 122b.

  As with the power generation system 1 according to Embodiment 1, the power generation system 101 as described above can generate power while transporting the fluid F to a predetermined height position. In particular, even when the floating body 10 moves up and down due to wave force, the fluid F can be transported to a predetermined height position, so that the fluidity of the fluid F in each of the transport unit 20 and the feed unit 70 is improved. Can be improved. Therefore, compared to the power generation system 1 according to Embodiment 1, it is possible to increase the power generation amount.

(Operation of power generation system)
The operation of the power generation system 101 configured as described above will be described. FIG. 3 is a diagram illustrating a flow state of the fluid F in the power generation system 101 when the wave height is low. FIG. 4 is a diagram illustrating a flow state of the fluid F in the power generation system 101 when the wave height is low.

  First, when the lower surface of the floating body 10 receives a wave force due to an increase in wave height, as shown in FIG. 3, the fluid F above the fluidized portion main body 31 in the fluid F in the accommodation flow path 43. Is sent from the accommodation flow path 43 to the second flow path 121b of the bridge flow path 120 through the first communication flow path 44 by being pressed by the fluid section 30, and the second flow path 121b and the ascending flow path After being sent to a predetermined height position via 50, it is sent downward from the ascending channel 50 toward the descending channel 80. Thereby, the dynamo of the power generation unit 110 housed in the housing portion 85 of the descending flow path 80 can generate power by being driven by the potential energy of the fluid F sent to the descending flow path 80. On the other hand, the fluid F above the fluid section main body 31 is sent to the first flow path 121a of the bridge flow path 120 via the first communication flow path 44, but the first valve 123a of the bridge flow path 120. Therefore, the flow into the return channel 90 is restricted. Next, the fluid F sent to the descending flow path 80 is sent to the third flow path 121c of the bridge flow path 120 via the return flow path 90, and then the second communication with the third flow path 121c. It is sent via the flow path 45 to the lower part of the accommodation flow path 43 than the fluid section main body 31. On the other hand, the fluid F sent to the descending flow path 80 is sent to the first flow path 121a of the bridge flow path 120 via the return flow path 90, but the first flow via the first communication flow path 44. Since the first valve 123a is pressed by the fluid F sent to the path 121a, the inflow to the first communication channel 44 is restricted.

  Further, when the lower surface of the floating body 10 is not subjected to wave force due to the wave height being lowered, as shown in FIG. 4, the fluid below the fluidized portion main body 31 in the fluid F in the accommodation flow path 43. F is sent by the flow part 30 to the fourth flow path 121d of the bridge flow path 120 from the accommodation flow path 43 via the second communication flow path 45, and the fourth flow path 121d and the upward flow After being sent to a predetermined height position via the path 50, it is sent downward from the ascending channel 50 to the descending channel 80. Thereby, the dynamo of the power generation unit 110 housed in the housing portion 85 of the descending flow path 80 can generate power by being driven by the potential energy of the fluid F sent to the descending flow path 80. On the other hand, the fluid F below the fluid section main body 31 is sent to the third flow path 121c of the bridge flow path 120 via the second communication flow path 45, but the third valve 123c of the bridge flow path 120. Therefore, the flow into the return channel 90 is restricted. Next, the fluid F sent to the descending flow path 80 is sent to the first flow path 121a of the bridge flow path 120 via the return flow path 90, and then the first communication with the first flow path 121a. It is sent via the flow path 44 to a portion above the fluid section main body 31 in the accommodation flow path 43. On the other hand, although the fluid F sent to the descending flow path 80 is sent to the third flow path 121c of the bridge flow path 120 via the return flow path 90, the third flow flows via the second communication flow path 45. Since the third valve 123c is pressed by the fluid F sent to the path 121c, the flow into the second communication channel 45 is restricted.

(effect)
Thus, according to Embodiment 2, the transport unit 20 includes the first flow path 121a, the second flow path 121b, the third flow path 121c, the fourth flow path 121d, the first valve 123a, A second flow path 123b, a third valve 123c, a fourth valve 123d, and a delivery flow path 40 that sends the fluid F that has been flowed by the flow section 30 toward the second flow path 121b or the fourth flow path 121d; An ascending flow path 50 that feeds the fluid F sent from the delivery flow path 40 via the second flow path 121b or the fourth flow path 121d to a predetermined height position. The downward flow path 80 that drives the power generation unit 110 when the fluid F that is sent flows downward, and the return flow path 90 that sends the fluid F sent from the downward flow path 80 toward the second connection portion 122b. Therefore, the floating body 10 is moved up by the wave force. Even when under movement, can carry fluid F to a predetermined height position. Therefore, the fluidity of the fluid F in each of the transport unit 20 and the feed unit 70 can be improved, and the power generation amount can be increased.

[Embodiment 3]
Next, Embodiment 3 will be described. In this form, the power generation system is provided in the flow path. In addition, about the component similar to Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(Constitution)
First, the configuration of the power generation system according to Embodiment 3 will be described. FIG. 5 is a schematic diagram illustrating a power generation system according to Embodiment 3, wherein (a) is a diagram illustrating a state in which an outflow portion 132 (described later) is not rotating, and (b) is an illustration of an outflow portion 132 (described later). It is a figure which shows the state rotated. As shown in FIG. 5A, the power generation system 201 according to Embodiment 3 includes a floating body 10, a transport unit 20, a feeding unit 70, a power generation unit 110, and a water storage unit 130. In the power generation system according to the third embodiment, since the fluidized part main body 31 is formed of a substantially plate-like body, the setting of the volume of the floating body 10 is performed according to the fluidized part main body 31 according to the first embodiment. The volume is set to be substantially the same as the volume setting.

(Configuration-water storage)
The water storage unit 130 is a water storage unit that temporarily stores water flowing in from the upstream side of the flow path 135. The water storage section 130 is provided in the vicinity of the floating body 10 and the transport section 20, and includes a water storage section main body 131 and an outflow section 132 as shown in FIG.

(Configuration-Water storage unit-Water storage unit body)
The water reservoir main body 131 is a basic structure of the water reservoir 130. The water storage unit main body 131 is a box-shaped body (or a hollow cylindrical body or the like) having an open upper surface, and is formed of, for example, a resin material, a rust-proof metal material, wood, concrete material, or the like. . Moreover, this water storage part main body 131 is provided so that the floating body 10 and the conveyance part 20 may be accommodated, and is being fixed with the fixture etc. with respect to the installation surface.

(Configuration-Water storage section-Outflow section)
The outflow portion 132 is an outflow means that causes the water stored in the water storage portion main body 131 to flow out to the downstream side of the flow path 135 when the internal water level of the water storage portion main body 131 becomes a predetermined value or more. Here, the “predetermined value” corresponds to, for example, the value of the maximum water level of the internal water level of the water storage unit main body 131 or the value of a water level slightly lower than the maximum water level. The outflow portion 132 is a thick plate-like body formed of, for example, a resin material, a rust-proof metal material, wood, or the like, and the upper end of the downstream side portion of the water storage portion main body 131 (FIG. 5 ( a) is provided at the upper end of the left side portion of the water storage main body 131, and specifically, as shown in FIG. It is rotatably fixed to the member by a fixture or the like.

  The operation of the water storage unit 130 configured as described above is as follows. That is, when the internal water level of the water storage unit main body 131 is less than a predetermined value, as shown in FIG. 5A, the water flowing in from the upstream side of the flow path 135 is not stored in the water storage unit without rotating the outflow unit 132. Can continue to be stored in 130. In addition, when the internal water level of the water storage unit main body 131 becomes equal to or higher than a predetermined value, the water stored in the water storage unit 130 flows as the outflow part 132 rotates as shown in FIG. It flows out downstream of 135. Thereby, compared with the case where the outflow part 132 is not provided, since the wave is easily generated in the water storage part main body 131, the fluidizing part 30 can be effectively operated.

(effect)
As described above, according to the third embodiment, when the water storage unit 130 has an internal water level of the water storage unit 130 equal to or higher than a predetermined value, the water stored in the water storage unit 130 is downstream of the flow path 135. Since the outflow part 132 that causes the outflow part 132 to flow out is provided, a wave is easily generated in the water storage part 130 as compared with the case where the outflow part 132 is not provided, so that the flow part 30 can be operated effectively.

[Embodiment 4]
Next, a fourth embodiment will be described. In this form, the power generation system is provided on the quay. In addition, about the component similar to Embodiment 1, the same code | symbol or name as used in Embodiment 1 is attached | subjected as needed, and the description is abbreviate | omitted.

(Constitution)
First, the configuration of the power generation system according to Embodiment 4 will be described. 6A and 6B are schematic views showing a power generation system according to Embodiment 4, where FIG. 6A is a plan view and FIG. 6B is a cross-sectional view taken along line AA in FIG. As shown in FIGS. 6A and 6B, the power generation system 301 according to the fourth embodiment includes a floating body 10, a collection unit 140, a transport unit (not shown), a feed unit (not shown), and a power generation unit. (Not shown).

(Configuration-floating body)
The floating body 10 is formed of, for example, a resin material, a rubber material, a rust-proof metal material, and the like. As shown in FIGS. 6A and 6B, the floating body 12 and the transmission unit 13 are connected to each other. I have.

  The floating body 12 is a basic structure of the floating body 10 and is formed in a substantially box-like body, and floats on the water surface as shown in FIGS. 6 (a) and 6 (b).

  When the floating body 12 receives wave force, the transmission unit 13 is a transmission unit that transmits the wave force to a rotational force conversion unit of the transport unit described later. As shown in FIGS. 6A and 6B, the transmission unit 13 is a long, substantially rod-like body, and a plurality of the transmission units 13 are provided on the upper surface of the floating body 12. It is fixed by a fixture or the like.

(Configuration-Collection Department)
The collecting unit 140 is a collecting unit that collects the wave force of the wave that has flowed into the collecting unit 140. The collection unit 140 is formed of, for example, a resin material, a rust-proof metal material, wood, concrete material, or the like, and as illustrated in FIGS. A space portion (accommodating portion) 142, a push-up portion 143, and a wave removal portion 144 are provided.

  The collection unit main body 141 is a basic structure of the collection unit 140, and as illustrated in FIGS. 6A and 6B, the collection unit main body 141 is formed of a rectangular parallelepiped having a substantially C-shaped planar shape. It is provided at a position where waves can flow in and out of the concave portion of the main body 141, and is fixed to the installation surface by a fixture or the like.

  The accommodation space 142 is a space that accommodates the floating body 10 and is formed of a rectangular parallelepiped whose planar shape is larger than the planar shape of the floating body 10, as shown in FIG. It is provided at the bottom of the concave portion of the collecting unit main body 141 and the vicinity thereof.

  The push-up portion 143 raises the wave flowing into the accommodation space portion 142, and is formed of a solid body or a hollow body (in FIG. 6B, a hollow triangular prism-like body) whose upper surface is inclined. As shown in FIG. 6B, it is provided at the lower end of the accommodation space 142 or in the vicinity thereof, and is connected to the collection unit main body 141. Further, regarding the specific shape of the upper surface of the push-up portion 143, in Embodiment 4, a shape that is inclined upward as it goes toward the back side (left side of FIG. 6B) of the accommodation space portion 142. (For example, a cycloid curve, a clothoid curve, a bunner curve, etc.). With such a shape, compared with the case where the push-up portion 143 is formed in a flat shape, the wave force of the waves collected by the concave portion of the collecting portion main body 141 is effectively transmitted to the rotational force converting portion described later. It becomes possible to do. In addition, since the water surface in the accommodation space 142 is likely to be inclined by the wave raised by the push-up portion 143, in order to avoid this, for example, the size of the planar shape of the accommodation space 142 is changed to the water surface. It is preferable to set the size so that it can be made flat.

  The wave removing portion 144 is a wave removing means for suppressing the wave from being applied to the floating body 10 and is formed of a thick plate-like body. Further, the wave removing portion 144 is provided on the side (the right side of FIGS. 6A and 6B) where the wave flows in from the floating body 10, and specifically, FIGS. 6A and 6B are provided. As shown in FIG. 5, the vertical direction and the front-rear direction are arranged, and are connected to the collection unit main body 141 by a fixture or the like.

(Configuration-transport section)
The transport unit includes a rotational force conversion unit and a pumping unit (both not shown).

(Configuration-transporting part-rotational force conversion part)
The rotational force conversion unit is a rotational force conversion unit that converts the wave force into a rotational force when the floating body 10 receives the wave force collected by the collection unit 140. For example, a known drive device such as a motor is used. It is comprised using. Moreover, this rotational force conversion part is provided in the position which can contact the transmission part 13, and is being rotatably fixed with respect to the fixing member which is not shown in figure.

(Configuration-transport section-pumping section)
The pumping unit is a pumping unit that pumps the fluid to a predetermined height position using the torque converted by the torque converter, and includes, for example, a known pumping device (for example, a container that can contain the fluid). Is configured using a belt conveyor (or a pulley or the like). In addition, the pumping unit sends the fluid pumped by the pumping unit to the descending flow path in a state where a part for conveying the fluid in the pumping unit (for example, a belt conveyor) is attached to the rotational force converting unit. Is provided at a position where possible.

  With the power generation system 301 as described above, the magnitude of the wave force received by the floating body 10 can be increased as compared with the case where the collection unit 140 is not provided. Therefore, since a large wave force can be transmitted to the rotational force conversion unit, the pumping unit can be operated effectively.

(effect)
As described above, according to the fourth embodiment, when the transport unit receives the wave force collected by the collection unit 140, the transporting unit 10 converts the wave force into a rotational force, The floating body 10 receives the floating body 10 as compared with the case where the collecting section 140 is not provided because the fluid pumping section pumps up the fluid to a predetermined height position using the torque converted by the torque converting section. The magnitude of wave power can be increased. Therefore, since a large wave force can be transmitted to the rotational force conversion unit, the pumping unit can be operated effectively.

[III] Modifications to Embodiments Although the embodiments according to the present invention have been described above, the specific configuration and means of the present invention are within the scope of the technical idea of each invention described in the claims. Can be arbitrarily modified and improved. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved.

(About shape, numerical value, structure, time series)
Regarding the constituent elements exemplified in the embodiment and the drawings, the shape, numerical value, or the structure of a plurality of constituent elements or the mutual relationship in time series may be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can do.

(About fluid)
In the first to fourth embodiments, it has been described that the fluid is water. However, the present invention is not limited to this. For example, an additive (so-called additive) that can reduce frictional resistance generated when the fluid flows through various flow paths. It may be a mixture (for example, mixed water containing a chain polymer, soapy water, etc.) containing an additive that produces the Toms effect. Thereby, compared with the case where a fluid is water, the said frictional resistance can be reduced and it becomes possible to operate a power generation system efficiently.

(About the transport section)
In Embodiments 1 to 3 described above, it has been described that the flow path diameter of the delivery flow path 40 of the transport unit 20 is set to be larger than the outer diameter of the fluid flow body 31, but is not limited thereto. For example, the size of the flow channel diameter of the delivery flow channel 40 may be set to be substantially the same as the size of the outer diameter of the fluid main body 31.

(About the feed section)
In the first to fourth embodiments, it has been described that the feeding unit includes the return channel. However, the present invention is not limited to this, and the return channel may be omitted, for example. Further, in the first to fourth embodiments, it has been described that the feeding unit includes the accommodating unit. However, the present invention is not limited to this. For example, the power generation unit is provided in the first descending flow path or the second descending flow path. If it can be provided, the housing portion may be omitted.

  Further, in the first to fourth embodiments, it has been described that the feeding unit is provided with two storage units. However, the present invention is not limited to this. For example, only one storage unit may be provided. Three or more reservoirs may be provided. Note that, for example, a plurality of the storage portions may be arranged in parallel in the horizontal direction and connected to each other. In this case, a communication port may be provided in each reservoir so that fluid can move between adjacent reservoirs.

(About 1st valve and 2nd valve)
In the first and third embodiments, it has been described that the first valve 60 and the second valve 100 are provided in the power generation system. However, the present invention is not limited to this. For example, at least the first valve 60 or the second valve 100 is provided. Either one may be omitted.

  In the first and third embodiments, the first valve 60 has been described as being disposed above the second connection port 51. However, the present invention is not limited to this, for example, below the second connection port 51. May be arranged.

(About the power generation unit)
In the first to third embodiments, it has been described that the power generation unit 110 is provided only in the first descending flow path 82 of the feeding unit 70. However, the present invention is not limited to this. For example, the second descending flow of the feeding unit 70 is provided. You may provide in the channel | path 84, the raising flow path 50 of the conveyance part 20, or the return flow path 90 of the sending part 70 grade | etc.,.

(About the water reservoir)
In the said Embodiment 3, although the water storage part 130 was provided with the outflow part 132, it is not restricted to this, For example, you may abbreviate | omit the outflow part 132.

(About the collection department)
In the said Embodiment 4, although the collection part 140 was provided with the wave removal part 144, it is not restricted to this. 7 and 8 are diagrams showing a modification of the power generation system 301 according to Embodiment 4, and are diagrams showing regions corresponding to FIG. 6 (a). For example, as shown in FIG. 7, the wave removal unit 144 may be omitted. Alternatively, as shown in FIG. 8, a reflection unit 150 may be provided instead of the wave removal unit 144. The reflection unit 150 is a reflection means for reflecting the waves reflected by the collection unit main body 141, and is formed of, for example, a hollow or solid rectangular body (for example, a hollow triangular prism), The side of the reflecting unit 150 on the floating body 10 side faces the concave portion of the collecting unit main body 141 (more specifically, the focal point of the side of the reflecting unit 150 on the floating body 10 side is the focal point of the concave portion. So as to coincide with each other). By such a reflection part 150, the water level between the collection part main body 141 and the reflection part 150 can be amplified, and the magnitude | size of the wave force which the floating body 10 receives can be raised further.

(About wave removal part)
In the said Embodiment 4, although it demonstrated that the wave removal part 144 was provided in the electric power generation system 301, it is not restricted to this, For example, the wave removal part 144 may be provided in the electric power generation system 1 which concerns on embodiment. . In this case, it is desirable to install the wave removing unit 144 at a position where the wave does not hit the lower end of the wave removing unit 144 when the wave height is a normal height.

(Appendix)
The power generation system of Appendix 1 is a power generation system that converts the potential energy of a fluid raised to a predetermined height position by wave power into electricity through power generation means, and the floating body and the floating body generate wave power. A power supply means for transporting the fluid to the predetermined height position by the wave force, and a feed means for sending the fluid transported by the transport means downward. The means generates power when the power generation means is driven by the potential energy of the fluid sent by the feeding means.

  Further, the power generation system according to appendix 2 is the power generation system according to appendix 1, wherein the transporting means is a flow means connected to the floating body, and the fluid is supplied when the floating body receives wave power. A flow means for flowing, a delivery flow path for sending the fluid flowed by the flow means, and an ascending flow path for sending the fluid sent from the delivery flow path to the predetermined height position, The channel diameter of the ascending channel was made smaller than the channel diameter of the delivery channel.

  Further, the power generation system according to appendix 3 is the power generation system according to appendix 2, wherein the feeding means is a descending channel provided with the power generation means, and the fluid sent from the transport means is directed downward. And a return channel connected to the ascending channel and the descending channel, wherein the fluid sent from the descending channel is And a return channel that feeds toward the channel.

  Further, the power generation system according to appendix 4 is the power generation system according to appendix 3, wherein a first valve that restricts the inflow of the fluid from the ascending flow path to the delivery flow path, and a return flow path to the ascending flow path And a second valve for restricting the flow of the fluid into the.

  Further, the power generation system according to appendix 5 is the power generation system according to appendix 1, wherein the transporting means is a flow means connected to the floating body, the flow means for flowing the fluid, a first flow path, A second flow path connected to one end of the first flow path, a third flow path connected to the other end of the first flow path, and the first flow path in the second flow path. A fourth channel connected to an end of the third channel opposite to the first channel and a fourth channel connected to the end of the third channel opposite to the first channel; and the first channel. A first valve that connects the first flow path and the second flow path to a second connection section that connects the first flow path and the third flow path; A first valve that restricts the inflow of fluid and a second valve that is disposed in the second flow path, and connects the second flow path and the fourth flow path. A second valve that restricts the inflow of the fluid to the first connection portion, and a third valve disposed in the third flow path, the third flow path and the fourth flow path, A third valve for restricting the inflow of the fluid from the fourth connection part to the second connection part, and a fourth valve disposed in the fourth flow path, wherein the third connection part A flow path connected to the fourth valve for restricting the flow of the fluid from the first connection portion to the fourth connection portion, the first connection portion, and the fourth connection portion, and is flowed by the flow means. A delivery flow path for delivering the fluid toward the second flow path or the fourth flow path, and an ascending flow path connected to the third connection portion, the second flow from the delivery flow path An ascending flow path for feeding the fluid sent through the path or the fourth flow path to the predetermined height position, and the feeding means includes the power generator A lower flow path provided with a lower flow path for driving the power generation means when the fluid sent from the transport means flows downward, and the lower flow path and the second connection portion And a return channel that sends the fluid sent from the descending channel toward the second connection part.

  Further, the power generation system according to appendix 6 is the power generation system according to any one of appendices 2 to 5, wherein the power generation system is provided in a flow path through which water flows, and accommodates the floating body and the transportation means. And a water storage means for temporarily storing the water flowing in from the upstream side of the flow path, wherein the water storage means has an internal water level equal to or higher than a predetermined value. In this case, there is provided an outflow means for causing the water stored in the water storage means to flow out downstream of the flow path.

  Further, the power generation system according to appendix 7 is a collection means provided so as to accommodate the floating body in the power generation system according to appendix 1, wherein the collection means collects the wave force of the waves flowing into the collection means. The transporting means includes a rotational force converting means for converting the wave force into a rotational force when the floating body receives the wave force collected by the collecting means, and the rotational force converting means. Pumping means for pumping the fluid to the predetermined height position using the converted rotational force.

(Additional effects)
According to the power generation system of appendix 1, when the floating body receives wave power, the transport means that transports the fluid to a predetermined height position by the wave force, and the fluid transported by the transport means And the power generation means generates power when the power generation means is driven by the potential energy of the fluid sent by the feed means, so that the fluid is transported to a predetermined height position. However, since power generation can be performed, the power generation amount can be improved as compared with the conventional technology. In addition, since wave power is used as power for transporting a fluid to a predetermined height position, it is not necessary to use power as the power as in the prior art, so power cost can be reduced and running cost can be reduced. It becomes possible.

  According to the power generation system described in appendix 2, the flow path diameter of the rising flow path is smaller than the flow path diameter of the delivery flow path. The load due to the weight of the fluid in the delivery channel can be reduced compared with the case where the same or higher is set, and even if the predetermined height position is set relatively high, the delivery channel can be The fluid can be reliably sent to the height position.

  According to the power generation system described in appendix 3, the feeding means is a return channel connected to the ascending channel and the descending channel, and directs the fluid sent from the descending channel toward the ascending channel. Since the return flow path is provided, a flow path for circulating the fluid can be formed by the ascending flow path, the descending flow path, and the return flow path, and the fluid can be reused.

  According to the power generation system of appendix 4, the first valve that restricts the inflow of fluid from the ascending flow path to the delivery flow path, and the second valve that restricts the inflow of fluid from the return flow path to the ascending flow path; Therefore, it is possible to avoid the inflow of fluid from the descending channel to the ascending channel, and to avoid the inflow of fluid from the ascending channel to the delivery channel, so that the power generation system can be operated stably. It becomes possible.

  According to the power generation system of appendix 5, the transport means includes the first flow path, the second flow path, the third flow path, the fourth flow path, the first valve, the second valve, A three-way valve, a fourth valve, a sending channel for sending the fluid flowed by the flow means toward the second channel or the fourth channel, and the second channel or the fourth channel from the sending channel. And a rising flow path that sends the fluid sent through to a predetermined height position, and the feeding means drives the power generation means by flowing downward the fluid sent from the conveying means. And a return flow path for sending the fluid sent from the descending flow path toward the second connecting portion, so that the fluid is kept at a predetermined height even when the floating body moves up and down by wave force. Can be transported to a position. Therefore, the fluidity of the fluid in each of the conveying means and the feeding means can be improved, and the power generation amount can be increased.

  According to the power generation system described in appendix 6, the water storage means causes the water stored in the water storage means to flow out downstream of the flow path when the internal water level of the water storage means exceeds a predetermined value. Since the means is provided, a wave is easily generated in the water storage means as compared with the case where the outflow means is not provided, so that the flow means can be operated effectively.

  According to the power generation system described in appendix 7, when the transport means receives the wave force collected by the collection means, the rotation force conversion means for converting the wave force into the rotation force, and the rotation force And a pumping means for pumping the fluid to a predetermined height position using the rotational force converted by the converting means, so that the wave force received by the floating body is larger than when the collecting means is not provided. Can be increased. Therefore, since a large wave force can be transmitted to the rotational force conversion means, the pumping unit can be operated effectively.

DESCRIPTION OF SYMBOLS 1 Electric power generation system 10 Floating body 11 Insertion hole 12 Floating body main body 13 Transmission part 20 Transporting part 30 Flowing part 31 Flowing part main body 32, 33 Connection part 34 Embedding member 40 Sending flow path 41 Insertion port 42 First connection port 43 Accommodation flow path 43a First insertion port 43b Second insertion port 43c First connection port 43d Second connection port 44 First communication channel 45 Second communication channel 50 Ascending channel 51 Second connection port 60 First valve 70 Feeding unit 80 Lowering Flow path 81 First storage portion 81a First connection port 82 First downward flow channel 82a Second connection port 83 Second storage portion 83a Third connection port 84 Second downward flow channel 85 Housing portion 90 Return flow channel 100 Second valve DESCRIPTION OF SYMBOLS 101 Power generation system 110 Electric power generation part 120 Bridge flow path 121a 1st flow path 121b 2nd flow path 121c 3rd flow path 121d 4th flow path 122a 1st connection part 122b 1st Connection part 122c Third connection part 122d Fourth connection part 123a First valve 123b Second valve 123c Third valve 123d Fourth valve 130 Water storage part 131 Water storage part main body 132 Outflow part 135 Flow path 140 Collection part 141 Collection part main body 142 Accommodation Space part 143 Push-up part 144 Wave removal part 150 Reflection part 201 Power generation system 301 Power generation system F Fluid

Claims (7)

A power generation system that converts the potential energy of a fluid raised to a predetermined height position by wave power into electricity through power generation means,
Floating bodies,
A transporting means for transporting the fluid to the predetermined height position by the wave force when the floating body receives the wave force;
A feeding means for sending the fluid conveyed by the conveying means downward,
The power generation means generates power by driving the power generation means by the potential energy of the fluid sent by the feeding means.
Power generation system. The conveying means is
A flow means connected to the floating body, the flow means for flowing the fluid when the floating body receives wave force;
A delivery flow path for delivering the fluid flowed by the flow means;
An ascending channel for sending the fluid delivered from the delivery channel to the predetermined height position, and
The flow path diameter of the ascending flow path is smaller than the flow path diameter of the delivery flow path,
The power generation system according to claim 1. The feeding means is
A downward flow path provided with the power generation means, the downward flow path for driving the power generation means when the fluid sent from the transport means flows downward;
A return channel connected to the ascending channel and the descending channel, the return channel sending the fluid sent from the descending channel toward the ascending channel,
The power generation system according to claim 2. A first valve that restricts inflow of the fluid from the ascending channel to the delivery channel;
A second valve that restricts inflow of the fluid from the return channel to the ascending channel,
The power generation system according to claim 3. The conveying means is
A flow means connected to the floating body, the flow means for flowing the fluid;
A first flow path;
A second flow path connected to one end of the first flow path;
A third flow path connected to the other end of the first flow path;
A fourth channel connected to an end of the second channel opposite to the first channel and an end of the third channel opposite to the first channel;
A first valve disposed in the first flow path, the first flow path and the third flow path from a first connection portion connecting the first flow path and the second flow path; A first valve that restricts the inflow of the fluid into a second connecting portion that connects
A second valve disposed in the second flow path, wherein the fluid flows into the first connection section from a third connection section that connects the second flow path and the fourth flow path. A second valve to limit;
A third valve disposed in the third flow path, wherein the fluid flows into the second connection section from a fourth connection section connecting the third flow path and the fourth flow path. A third valve to limit,
A fourth valve disposed in the fourth flow path, the fourth valve for restricting inflow of the fluid from the third connection portion to the fourth connection portion;
A delivery flow path connected to the first connection section and the fourth connection section, wherein the fluid flowed by the flow means is sent toward the second flow path or the fourth flow path. A delivery channel;
An ascending flow path connected to the third connecting portion, wherein the fluid sent from the delivery flow path via the second flow path or the fourth flow path is sent to the predetermined height position. A flow path,
The feeding means is
A downward flow path provided with the power generation means, the downward flow path for driving the power generation means when the fluid sent from the transport means flows downward;
A return channel connected to the descending channel and the second connection part, the return channel sending the fluid sent from the descending channel toward the second connection unit ,
The power generation system according to claim 1. A power generation system provided in a flow path through which water flows,
A water storage means provided to accommodate the floating body and the transport means, the water storage means for temporarily storing the water flowing in from the upstream side of the flow path,
The water storage means includes an outflow means for causing the water stored in the water storage means to flow out to the downstream side of the flow path when the internal water level of the water storage means becomes a predetermined value or more.
The power generation system according to any one of claims 2 to 5. The collecting means provided to accommodate the floating body, the collecting means for collecting the wave force of the waves flowing into the collecting means,
The conveying means is
When the floating body receives a wave force collected by the collecting means, a rotational force converting means for converting the wave force into a rotational force;
Pumping means for pumping the fluid to the predetermined height position using the rotational force converted by the rotational force conversion means,
The power generation system according to claim 1.

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