JP2023005653A - Hydroelectric power generating equipment - Google Patents

Abstract

To provide a hydroelectric power generating equipment capable of efficiently converting water flow in a flow channel to torque for generating power of a power generator, installing without spoiling an exterior appearance of the flow channel and suppressing breakages due to the water flow when the flow channel is increased.SOLUTION: A hydroelectric power generating equipment 1 includes a water wheel portion 3. The water wheel portion 3 includes: a pair of first gears 31; a pair of second gears 32; a first rotary shaft member 37; a second rotary shaft member 38; a first endless chain 33; a second endless chain 34; a plurality of blades 35; and a plurality of stoppers 36. The water wheel portion 3 is installed under a water surface of a flow channel 15. The first endless chain 33 and the second endless chain 34 are arranged apart from each other in one direction in a horizontal direction. The blades 35 positioned at lower parts of the first endless chain 33 are restricted in rotation thereof by the stoppers 36 in such manner that the blades 35 cross a water flow direction R1 of the flow channel 15. The blades 35 positioned at upper parts 33U of the first endless chain 33 rotate in such manner that the blades 35 are along the water flow direction R1.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hydraulic power plant. More particularly, the present invention relates to a hydroelectric power generator including a water wheel section that converts water flow in a flow path into rotational force for generating power with a generator.

The hydraulic power generator described in Patent Literature 1 includes a pair of upper and lower connecting ropes (chains) and a plurality of blade plates. The pair of upper and lower connecting ropes are connected endlessly by engaging with the rotating cylinder located upstream and the rotating cylinder located downstream in the water flow direction. A plurality of slats are provided straddling between a pair of upper and lower connecting ropes, and arranged side by side in the circumferential direction of the connecting ropes. A pair of upper and lower connecting ropes and a plurality of blade plates are arranged under the water surface of the channel. When viewed in the water flow direction, the blade positioned on the left side of the connecting cable among the plurality of blades is opened to receive the water flow, thereby moving the left side of the connecting cable in the water flow direction. In addition, when viewed in the water flow direction, the blade plate located on the right side of the connecting cable among the plurality of blades closes and does not receive the water flow, so that the right side of the connecting cable moves in the direction opposite to the water flow direction.

JP 2013-19376 A

In the hydraulic power generator described in Patent Document 1, the pair of connecting cables are arranged side by side in the vertical direction (that is, the depth direction of the flow channel), so that the plurality of blade plates are arranged in the depth direction of the flow channel. arranged to extend. For this reason, the length of the blade plate is limited by the depth of the flow path, and it is difficult to secure a sufficient length. For this reason, in the hydroelectric power generator described in Patent Document 1, it is difficult to effectively convert the water flow in the flow path into rotational force for causing the generator to generate electricity.

Moreover, in such a hydraulic power unit, it is required to install the hydraulic power unit so as not to impair the appearance of the flow path. Further, in such a hydraulic power generator, it is required to make the hydraulic power generator less likely to be damaged by the water flow when the water level in the flow channel rises.

SUMMARY OF THE INVENTION An object of the present invention is to take into consideration the above circumstances, and to enable effective conversion of water flow in a flow path into rotational force for generating power by a generator, installation without impairing the appearance of the flow path, and An object of the present invention is to provide a hydraulic power generator capable of suppressing damage caused by a water flow when the water level in a channel rises.

A hydraulic power generator according to one aspect of the present invention includes a water turbine unit that converts a water flow in a flow path into a rotational force for causing a power generator to generate power. The water wheel portion includes a pair of first gears, a pair of second gears, a first rotating shaft member, a second rotating shaft member, a first endless chain, a second endless chain, and a plurality of blades. , and a plurality of stoppers. The first rotating shaft member connects the pair of first gears. The second rotating shaft member connects the pair of second gears. The first endless chain is stretched over one of the pair of first gears and one of the pair of second gears. The second endless chain is stretched over the other of the pair of first gears and the other of the pair of second gears. The plurality of blade plates are rotatably connected to each of the first endless chain and the second endless chain while straddling the first endless chain and the second endless chain. lined up in a circumferential direction. The plurality of stoppers are provided on at least one of the first endless chain and the second endless chain, and restrict rotation of the plurality of blade plates. The waterwheel part is installed under the water surface of the flow path. The first endless chain and the second endless chain are spaced apart from each other in one horizontal direction. Among the plurality of blade plates, the blade plate positioned below the first endless chain is arranged by the stopper such that the blade plate intersects the water flow direction of the flow path when viewed in the one direction. rotation is regulated. Among the plurality of blade plates, the blade plate positioned above the first endless chain rotates along the water flow direction when viewed in the one direction.

INDUSTRIAL APPLICABILITY The present invention can effectively convert a water flow in a flow path into a rotational force for generating power by a generator, can be installed without impairing the appearance of the flow path, and can suppress damage due to the water flow when the water level in the flow path increases. , has the effect of

FIG. 1 is a top plan view of an installed state of a hydraulic power generator according to an embodiment. FIG. 2 is a side view of the installed state of the hydroelectric power generator as viewed from the side. 3 is a partially enlarged view of FIG. 2. FIG. FIG. 4 is a side view of a state in which a fixing rod is inserted into a water turbine portion provided in the hydroelectric power generator as viewed from the side.

(embodiment)
A hydraulic power generator 1 according to this embodiment will be described in detail with reference to the drawings. The configuration described in this embodiment is merely an example of the present invention. The present invention is not limited to this embodiment, and various modifications can be made according to design and the like without departing from the technical idea of the present invention.

(1) Overview of Hydroelectric Generator A hydraulic generator 1 according to the present embodiment is installed in a channel such as a river, converts water flow in the channel into rotational force, and generates power using the converted rotational force. . The hydroelectric power generator 1 is a device capable of efficiently obtaining a large amount of hydroelectric power while the use of natural energy is required for decarbonization. The hydroelectric power generation device 1 can generate hydroelectric power by using as much water as possible from a river with a large amount of water. For this reason, it is desirable to install the hydroelectric power generation device 1 in a river where both sides of the river are paved with stones, concrete, or the like, even if the flow velocity of the river is slow. Also, even if the width of the river is wide, if the water does not flow across the entire width of the river and you can see earth and sand here and there, the central part of the river will be excavated and a channel made of stones or concrete will be built and placed in the channel. A hydraulic power generator 1 may be installed. In addition, in order to prevent flooding due to a large amount of rain due to climate warming, in rivers where a waterway for temporarily storing heavy rainfall is installed in the central part of the river, the hydroelectric power generation device 1 is installed in the waterway. good too.

(2) Configuration of Hydraulic Power Unit The configuration of the hydraulic power unit 1 will be described with reference to FIGS. 1 and 2. FIG.

A hydraulic power generator 1 includes a generator 2 , a water turbine section 3 , a pair of first fixing members 4 , and a pair of second fixing members 5 . In addition, although the generator 2 is a component of the hydraulic power unit 1 in this embodiment, the generator 2 may not be a component of the hydraulic power unit 1 .

The generator 2 is a device that generates power by being driven by the rotational force given from the water wheel section 3 . The generator 2 is installed on one bank 16 of the banks 16 on both sides of the channel 15 in which the water turbine section 3 is installed (see FIG. 1). Note that the shore 16 also includes embankments and embankments.

The water wheel unit 3 is installed in a flow path 15 such as a river, and is a device (mechanism) that converts the water flow in the flow path 15 into rotational force and drives the generator 2 with the converted rotational force. The water wheel part 3 is installed so as to be submerged under the water surface 15a of the channel 15 (see FIG. 2). That is, the entire water turbine section 3 is installed in the water of the channel 15 .

More specifically, the water wheel section 3 includes a pair of first gears 31, a pair of second gears 32, a first rotating shaft member 37, a second rotating shaft member 38, a first endless chain 33, and a second It has two endless chains 34, a plurality of blades 35, and a plurality of stoppers 36.

The pair of first gears 31 are concentrically connected by a first rotating shaft member 37 . The pair of first gears 31 are spaced apart from each other in one horizontal direction (the width direction L1 of the flow path 15 in the example of FIG. 1). The first rotating shaft member 37 is, for example, a metal pipe or a metal round bar. The first rotating shaft member 37 is arranged along the width direction L<b>1 of the flow path 15 . The first rotating shaft member 37 concentrically penetrates the pair of first gears 31 . That is, both end portions of the first rotating shaft member 37 form protrusions 37a that protrude outward in the direction in which the pair of first gears 31 face each other. Protrusions 37 a on both sides of the first rotating shaft member 37 are rotatably inserted into the bank 16 from both side surfaces of the flow path 15 . Projections 37 a on both sides of the first rotating shaft member 37 are rotatably fixed by first fixing members 4 installed on banks 16 on both sides of the flow path 15 .

The pair of second gears 32 are configured similarly to the pair of first gears 31 . That is, the pair of second gears 32 are concentrically connected by the second rotating shaft member 38 . The pair of second gears 32 are spaced apart from each other in one horizontal direction (the width direction L1 of the flow path 15 in the example of FIG. 1). The second rotating shaft member 38 is, for example, a metal pipe or a metal round bar. The second rotating shaft member 38 is arranged along the width direction L<b>1 of the flow path 15 . The second rotating shaft member 38 concentrically penetrates the pair of second gears 32 . That is, both end portions of the second rotating shaft member 38 form protrusions 38a that protrude outward in the direction in which the pair of second gears 32 face each other. Projections 38 a on both sides of the second rotating shaft member 38 are rotatably fixed by the second fixing members 5 installed on banks 16 on both sides of the flow path 15 .

The second rotating shaft member 38 is the first rotating shaft in a direction orthogonal to the width direction L1 of the flow channel 15 (in the example of FIG. 1, the water flow direction R1 of the flow channel 15) in plan view from the vertical direction (vertical direction). It is arranged with a space from the member 37 .

In addition, when distinguishing each of a pair of 1st gears 31, they are described as the 1st gear 31R and the 1st gear 31L. Similarly, when distinguishing each of the pair of second gears 32, they are described as a second gear 32R and a second gear 32L. The first gear 31R and the second gear 32R are arranged on the same side of the flow path 15 in the width direction L1. The first gear 31L and the second gear 32L are arranged on the same side of the flow path 15 in the width direction L1.

The first endless chain 33 is stretched over one of the pair of first gears 31 (for example, the first gear 31R) and one of the pair of second gears 32 (for example, the second gear 32R). Thereby, the first endless chain 33 rotates so as to circulate between the first gear 31R and the second gear 32R. The second endless chain 34 is stretched over the other of the pair of first gears 31 (for example, the first gear 31L) and the other of the pair of second gears 32 (for example, the second gear 32L). Thereby, the second endless chain 34 rotates so as to circulate between the first gear 31L and the second gear 32L.

In the following description, the portion of the first endless chain 33 between the upper end of the first gear 31R and the upper end of the second gear 32R is referred to as the upper portion 33U of the first endless chain 33, and the lower end of the first gear 31R. and the lower end of the second gear 32R may be referred to as a lower portion 33D of the first endless chain 33 (see FIG. 2). Similarly, the portion of the second endless chain 34 between the upper end of the first gear 31L and the upper end of the second gear 32L is referred to as the upper portion 34U of the second endless chain 34, and the lower end of the first gear 31L and the upper end of the second gear 32L. A portion between the lower end of the second gear 32L and the lower end of the second endless chain 34 may be described.

A plurality of blade plates 35 are members for receiving the water flow of the flow path 15 . Each of the blade plates 35 has a rectangular plate shape extending in the width direction L<b>1 of the flow path 15 . The plurality of blade plates 35 are plate-shaped, for example, made of metal. The plurality of blade plates 35 are rotatably connected to each of the first endless chain 33 and the second endless chain 34 while straddling the first endless chain 33 and the second endless chain 34 . More specifically, one end of one of both end faces in the longitudinal direction (the width direction L1 of the flow path 15) of the blade plate 35 is rotatably connected to the first endless chain 33, and the other end face is rotatably connected to the second endless chain 34 . Moreover, the plurality of blade plates 35 are arranged side by side over the entire circumferential direction of each of the first endless chain 33 and the second endless chain 34 .

Each of the blade plates 35 is rotatable between a first posture and a second posture when viewed in the width direction L1 of the flow path 15 . The first posture is a posture in which the blade plate 35 is along the circumferential direction of the first endless chain 33 when viewed in the width direction L1 of the flow path 15 . In the second posture, when viewed in the width direction L1 of the flow path 15, the blade plate 35 intersects (for example, is perpendicular to) the circumferential direction of the first endless chain 33 (in other words, the blade plate 35 direction).

A plurality of stoppers 36 are provided on at least one of the first endless chain 33 and the second endless chain 34 . In this embodiment, the plurality of stoppers 36 are provided across the first endless chain 33 and the second endless chain 34, and correspond to the plurality of blade plates 35 one-on-one, and the corresponding blade plates 35 rotate. It is a member that regulates Each of the plurality of stoppers 36 has a shape (for example, a rectangular plate shape) extending in the width direction L1 of the flow path 15 . The plurality of stoppers 36 are made of metal, for example. Of both ends of the stopper 36 in the longitudinal direction (the width direction L1 of the flow path 15 ), one end is connected to the first endless chain 33 and the other end is connected to the second endless chain 34 .

Of the plurality of stoppers 36, the stopper 36 positioned at the lower portion 33D of the first endless chain 33 is positioned downstream (left in the example of FIG. 2) of the corresponding blade plate 35 in the water flow direction R1 of the flow path 15. . As a result, the plurality of stoppers 36 located at the lower portion 33D of the first endless chain 33 interfere with the corresponding blades 35 when the corresponding blades 35 rotate to the second posture due to their own weight. , restricts (stops) the rotation of the corresponding blade plate 35 . Further, among the plurality of stoppers 36, the stopper 36 positioned at the upper portion 33U of the first endless chain 33 is located on the upstream side (right side in the example of FIG. 2) of the corresponding blade plate 35 in the water flow direction R1 of the flow path 15. To position. As a result, of the plurality of stoppers 36, the stopper 36 positioned at the upper portion 33U of the first endless chain 33 can cope with the corresponding blade plate 35 even if it receives the water flow of the flow path 15 and rotates to the first posture. It does not interfere with the blade plate 35 and allows the corresponding blade plate 35 to receive the water flow of the flow path 15 and rotate to the first posture.

The pair of first fixing members 4 are members for rotatably fixing the protrusions 37a on both sides of the first rotating shaft member 37 to the shore 16 (see FIG. 1). The pair of first fixing members 4 are bearings that rotatably support the protrusions 37a on both sides of the first rotating shaft member 37 . The first fixing member 4 may be a bearing with balls (ball bearing) or may be a bearing without balls. When the first fixing member 4 is a ballless bearing, it may be a frame-shaped member that fits around the outer periphery of the projecting portion 37a. A pair of first fixing members 4 are installed on banks 16 on both sides of the channel 15 . More specifically, the pair of first fixing members 4 are buried in banks 16 on both sides of the channel 15 . That is, the projecting portions 37a on both sides of the first rotating shaft member 37 are rotatably inserted into the bank 16 from the side surface of the bank 16 (that is, the side surface of the flow path 15). The pair of first fixing members 4 are buried at the same depth as the projecting portion 37a of the first rotating shaft member 37 in the bank 16 on both sides of the flow path 15. The protrusion 37a of the rotating shaft member 37 is rotatably fixed. In the example of FIG. 1 , the pair of first fixing members 4 are installed in a state of being embedded in the side surface of the bank 16 .

A pair of 2nd fixing members 5 are members for fixing the protrusion part 38a of the both sides of the 2nd rotating shaft member 38 to the bank 16 rotatably. The pair of second fixing members 5 are bearings that rotatably support the projecting portions 38a on both sides of the second rotating shaft member 38 . The second fixing member 5 may be a bearing with balls (ball bearing) or may be a bearing without balls. The second fixing member 5 may be a frame-shaped member that fits around the outer periphery of the protruding portion 38a when it is a ballless bearing. A pair of second fixing members 5 are installed on banks 16 on both sides of the channel 15 . More specifically, the pair of second fixing members 5 are buried in banks 16 on both sides of the channel 15 . That is, the projecting portions 38 a on both sides of the second rotating shaft member 38 are rotatably inserted into the bank 16 from the side surfaces of the bank 16 . The pair of second fixing members 5 are buried at the same depth as the projecting portion 38a of the second rotating shaft member 38 on the banks 16 on both sides of the flow path 15. The projecting portion 38a of the rotary shaft member 38 is rotatably fixed. In the example of FIG. 1 , the pair of second fixing members 5 are installed in a state of being embedded in the side surface of bank 16 of channel 15 .

The water wheel portion 3 configured in this manner is arranged so as to be submerged under the water surface 15a of the flow path 15 (see FIG. 2). At this time, the first endless chain 33 and the second endless chain 34 are arranged side by side in the width direction L<b>1 of the flow path 15 in parallel with the water flow direction R<b>1 of the flow path 15 . Each of the plurality of blade plates 35 is arranged along the width direction L<b>1 of the flow path 15 . That is, the longitudinal direction of the plurality of blade plates 35 is orthogonal to the water flow direction R1 of the flow path 15. As shown in FIG. Also, the pair of first gears 31 and the pair of second gears 32 are arranged side by side in the water flow direction R1 of the flow path 15 .

The generator 2 is connected to the projection of one of the first rotation shaft member 37 and the second rotation shaft member 38 (the projection 37a of the first rotation shaft member 37 in the example of FIG. 1). and is driven using the rotation of the one rotating shaft member. The generator 2 is embedded in the shore 16 and installed. The generator 2 is embedded in the shore 16 so that the drive shaft of the generator 2 is positioned at the same depth as the protrusion of the one rotating shaft member, and the drive shaft of the generator 2 is concentric with the protrusion. directly connected to the shape.

Note that the generator 2 may be installed on the surface (upper surface) of the shore 16 . In this case, the drive shaft of the generator 2 is arranged in parallel with the protrusion of the one rotary shaft member with a vertical gap therebetween. By stretching an endless belt, for example, between the drive shaft of the generator 2 and the protrusion, the rotation of the protrusion is transmitted to the drive shaft.

(3) Specific example of connection structure between blade plate and stopper and endless chain Referring to FIGS. A specific example of the connection structure of is described.

As shown in FIG. 1 , the blade plate 35 and the stopper 36 are connected to the first endless chain 33 via the first connecting plate 8 . Further, the blade plate 35 and the stopper 36 are connected to the second endless chain 34 via the second connecting plate 9 . That is, the water wheel portion 3 has a plurality of first connection plates 8 and a plurality of second connection plates 9 . The plurality of first connecting plates 8 correspond to the plurality of blade plates 35 on a one-to-one basis and to the plurality of stoppers 36 on a one-to-one basis. The plurality of second connection plates 9 correspond one-to-one to the plurality of blade plates 35 and one-to-one correspondence to the plurality of stoppers 36 .

The first connecting plate 8 and the second connecting plate 9 are formed in the same manner as each other and are connected to the blade plate 35 and the stopper 36 in the same manner as each other. Therefore, in the following description, description of the second connecting plate 9 will be omitted, and only the first connecting plate 8 will be described.

As shown in FIG. 3, the first connecting plate 8 is, for example, a right triangular metal plate. The first connecting plate 8 is provided with an insertion hole 8a. The insertion hole 8a is a hole into which one end of the plate mounting rod 352 constituting the blade plate 35 is inserted and rotatably fixed, and penetrates the first connecting plate 8 in the thickness direction. The first connecting plate 8 is fixed to one of the side surfaces (both sides in the width direction L1) of the first endless chain 33 (for example, the side surface on the second endless chain 34 side) (see FIG. 1). .

More specifically, the first endless chain 33 has a plurality of chain unit members 10 that are endlessly connected. When viewed in the width direction L1 of the flow path 15, the chain unit member 10 has, for example, an elliptical shape or an elliptical shape with a constricted intermediate portion in the longitudinal direction. Both ends of each of the plurality of chain unit members 10 are rotatably connected to one end of the adjacent chain unit member 10 by a connecting pin 11 . Like the first endless chain 33, the second endless chain 34 also has a plurality of chain unit members 10 that are endlessly connected. The first connecting plate 8 is attached to both ends of one chain unit member 10 out of the plurality of chain unit members 10 on the side surface of one chain unit member 10 (for example, the side surface on the second endless chain 34 side). are fixed by connecting pins 11.

In this embodiment, the width of the first connecting plate 8 (the length in the direction along the first endless chain 33) is the length of the chain unit member 10 (the length in the direction along the first endless chain 33). Although they have approximately the same length, the width of the first connecting plate 8 is not particularly limited.

When the first connecting plate 8 is fixed to the side surface of the first endless chain 33 , the first connecting plate 8 protrudes outward from the first endless chain 33 . That is, the first connecting plate 8 has a protruding portion 8b protruding to the outer peripheral side of the first endless chain 33 (see FIG. 3). The protrusion 8b is provided with an insertion hole 8a.

The second connecting plate 9 is formed in the same manner as the first connecting plate 8, and is fixed to the side surface of the second endless chain 34 (for example, the side surface on the first endless chain 33 side) in the same manner as the first connecting plate 8. .

In this embodiment, the first connecting plate 8 is fixed to the side surface of the first endless chain 33 on the side of the second endless chain 34 , but the side of the first endless chain 33 opposite to the side of the second endless chain 34 is fixed. may be fixed to the side of the Also, in the present embodiment, the first connecting plate 8 may be formed integrally with the first endless chain 33 (more specifically, the chain unit member 10). More specifically, if the chain unit member 10 is configured, for example, by sandwiching two rollers between two plates, the first connecting plate 8 may be formed integrally with one of the plates. good. Similarly to the first connecting plate 8, the second connecting plate 9 may be fixed to the side surface of the second endless chain 34 opposite to the first endless chain 33 side, or the chain unit of the second endless chain 34 may be fixed. It may be formed integrally with one of the plates of member 10 .

The blade plate 35 has a blade plate main body 351 and a plate mounting rod 352 (see FIG. 3).

The blade plate main body 351 is the main body of the blade plate 35 , is a portion that receives the water flow of the flow path 15 , and has a rectangular flat plate shape extending in the width direction L<b>1 of the flow path 15 . The blade plate main body 351 has a through hole 351a through which the plate mounting rod 352 passes. The through hole 351a penetrates between one ends of both end surfaces of the blade plate body 351 in the longitudinal direction (the width direction L1 of the flow path 15). That is, the through-hole 351a penetrates along the longitudinal direction of the main surface of the blade main body 351 at one end in the short direction of the main surface of the blade main body 351 . The plate mounting bar 352 is, for example, a metal pipe or a metal round bar. The plate mounting rod 352 is rotatably inserted through the through hole 351a of the blade plate main body 351 . One end of the plate mounting rod 352 is inserted into the insertion hole 8a of the first connecting plate 8 and fixed. The other end of the plate mounting rod 352 is inserted into the insertion hole of the second connecting plate 9 and fixed. The blade plate main body 351 is rotatable around the plate mounting rod 352 . Thus, the blade plate 35 is rotatably connected to the first endless chain 33 and the second endless chain 34 via the first connecting plate 8 and the second connecting plate 9 (see FIG. 1).

Both ends of the stopper 36 in the longitudinal direction (the width direction L1 of the flow path 15) are connected to the first connecting plate 8 and the second connecting plate 9 (see FIG. 1). More specifically, one longitudinal end of the stopper 36 is connected to the first connecting plate 8 . The other longitudinal end of the stopper 36 is connected to the second connecting plate 9 . The stopper 36 has a rectangular plate shape as described above, and has a main surface 362 facing one side in the thickness direction. In the state where the stopper 36 is connected to the first connecting plate 8 and the second connecting plate 9, the longitudinal direction of the main surface 362 of the stopper 36 is the opposite direction (flow path direction) between the first connecting plate 8 and the second connecting plate 9. 15), and the lateral direction of the main surface 362 of the stopper 36 intersects (for example, orthogonally) the circumferential direction of the first endless chain 33 . At this time, the stopper 36 and the blade plate 35 are arranged adjacent to each other in the width direction of the first connecting plate 8 (direction along the circumferential direction of the first endless chain 33) (see FIG. 3). Furthermore, the stopper 36 protrudes to the outer peripheral side of the first endless chain 33 so that the lateral direction of the main surface 362 of the stopper 36 intersects (for example, is perpendicular to) the circumferential direction of the first endless chain 33 .

When the blade plate main body 351 rotates to the second posture along the direction perpendicular to the circumferential direction of the first endless chain 33, it contacts the main surface 362 of the stopper 36 (see FIG. 3). This restricts the rotation of the blade plate main body 351 beyond the second posture. On the other hand, when rotating to the first posture parallel to the circumferential direction of the first endless chain 33 , the blade body 351 rotates to the first posture without being restricted by the stopper 36 .

In addition, the blade plate main body 351 has two main surfaces 351c and 351d and an end surface 351e (see FIG. 3). The two main surfaces 351c and 351d are main surfaces on both sides of the blade plate main body 351 in the thickness direction. The end face 351e is one end face (the end face on the through hole 351a side) of both end faces in the short direction of the main surface 351c of the blade body 351 in the blade body 351 . Further, the blade plate main body 351 has corner portions 351f and 351g. The corner portion 351f is a corner portion formed by one main surface 351c and the end surface 351e of the blade body 351 . The corner portion 351g is a corner portion formed by the other main surface 351d and the end surface 351e of the blade plate main body 351 .

The corner portion 351f is chamfered in an arc shape. This prevents the corner portion 351f of the blade main body 351 from interfering with the stopper 36 when the blade main body 351 rotates to the second posture, as will be described later. Also, the corner portion 351g is not chamfered. As a result, as will be described later, when the blade plate 35 moves from the upper portion 33U of the first endless chain 33 to the lower portion 33D at the second gear 32, the corner portion 351g of the blade plate 35 interferes with the stopper 36. , the blade plate 35 is prevented from rotating toward the inner circumference of the first endless chain 33 . As a result, when the blade plate 35 moves from the upper portion 33U of the first endless chain 33 to the lower portion 33D at the second gear 32, the blade plate 35 rotates on the outer peripheral side of the first endless chain 33, The weight of 35 rotates to the second posture.

(4) Description of Operation of Hydraulic Power Unit The operation of the hydraulic power unit 1 will be described with reference to FIG. Since the operations of the first endless chain 33 and the second endless chain 34 are the same, the operation of the hydroelectric power generator 1 will be described by focusing on the first endless chain 33 in the following description.

The first endless chain 33 is rotatable between the first gear 31R and the second gear 32R. Among the plurality of blade plates 35 , the blade plate 35 positioned at the upper portion 33</b>U of the first endless chain 33 is positioned downstream of the corresponding stopper 36 in the water flow direction R<b>1 of the flow path 15 . Therefore, among the plurality of blade plates 35, the blade plate 35 positioned at the upper portion 33U of the first endless chain 33 is not restricted in rotation by the stopper 36, and the water flow in the flow channel 15 moves the blade plate 35 to the flow path. 15, the blade plate 35 is rotated along the circumferential direction of the first endless chain 33 . Therefore, among the plurality of blade plates 35, the blade plate 35 located at the upper portion 33U of the first endless chain 33 receives little force from the water flow in the flow path 15 in the water flow direction R1.

On the other hand, among the plurality of blade plates 35 , the blade plate 35 positioned at the lower portion 33</b>D of the first endless chain 33 is positioned upstream of the corresponding stopper 36 in the water flow direction R<b>1 of the flow path 15 . Therefore, among the plurality of blade plates 35, the blade plate 35 positioned at the lower portion 33D of the first endless chain 33 is pushed in the water flow direction R1 by the water flow in the flow path 15 and rotates. 36 restricts the blade plate 35 from rotating beyond the second posture (that is, the posture perpendicular to the circumferential direction of the first endless chain 33 and protruding downward (outer peripheral side) of the first endless chain 33). . Therefore, among the plurality of blade plates 35, the blade plate 35 located at the lower portion 33D of the first endless chain 33 effectively receives the force (water pressure) from the water flow in the flow path 15 in the water flow direction R1.

At this time, the blade plate 35 positioned at the lower portion 33D of the first endless chain 33 is more effectively than the blade plate 35 positioned at the upper portion 33U of the first endless chain 33. receive. Therefore, the blade plate 35 positioned at the lower portion 33</b>D of the first endless chain 33 is moved in the water flow direction R<b>1 by the water flow in the flow path 15 . As a result, the first endless chain 33 rotates (clockwise in FIG. 2) in a direction in which the blade plate 35 located at the lower portion 33D of the first endless chain 33 moves in the water flow direction R1. The rotation of the first endless chain 33 rotates the first gear 31R, and this rotation drives the generator 2 to generate electricity.

When the first endless chain 33 rotates as described above, the plurality of blade plates 35 positioned at the upper portion 33U of the first endless chain 33 move from the upper portion 33U to the lower portion of the first endless chain 33 at the second gear 32R. Go to 33D. At this time, the plurality of blade plates 35 are regulated so as not to rotate toward the inner peripheral side of the first endless chain 33 because the corner portions 351 g of the blade plates 35 interfere with the stopper 36 . As a result, when the blade plates 35 move from the upper portion 33U to the lower portion 33D of the first endless chain 33 at the second gear 32, the blade plates 35 rotate around the outer circumference of the first endless chain 33 due to their own weight. to rotate to the second posture. Then, the blade plate 35 moved to the lower portion 33</b>D of the first endless chain 33 is pushed in the water flow direction R<b>1 by the water flow in the flow path 15 . At this time, the blade plate 35 is restricted from rotating beyond the second posture by the stopper 36 , so the blade plate 35 is moved in the water flow direction R<b>1 by the water flow in the flow path 15 . This causes the first endless chain 33 to rotate.

(5) Details of Arrangement of Water Turbine Unit Details of the arrangement of the water turbine unit 3 will be described with reference to FIGS. 1 and 2 .

As shown in FIG. 1 , the first endless chain 33 and the second endless chain 34 are arranged within the channel 15 close to the banks 16 on both sides of the channel 15 . More specifically, the interval between the first endless chain 33 and the second endless chain 34 is defined as the interval W1. In this case, the interval W2 between the first endless chain 33 and the shore 16 (the shore 16 facing the first endless chain 33) is, for example, 0.05 times the interval W1 (5% length) or more and 0.05. less than twice (20% longer). Similarly, the interval W3 between the second endless chain 34 and the shore 16 (the shore 16 facing the second endless chain 34) is, for example, 0.05 times the interval W1 (5% length) or more and 0.05. less than twice (20% longer).

With this arrangement, the first endless chain 33 and the second endless chain 34 can be arranged close to both banks 16 of the flow path 15 . Thereby, the interval between the first endless chain 33 and the second endless chain 34 can be increased. As a result, the length of the blade plate 35 in the longitudinal direction (the width direction L1 of the flow path 15) can be made longer, and the blade plate 35 effectively converts the water flow in the flow path 15 into a rotational force for causing the power generator 2 to generate power. can be converted to

Moreover, as shown in FIG. 2, the water wheel part 3 is submerged under the water surface 15a. More specifically, the first endless chain 33 and the second endless chain 34 are arranged slightly below the water surface 15 a so as not to protrude above the water surface 15 a of the flow path 15 . That is, the upper portion 33U of the first endless chain 33 is arranged within the flow path 15 so as to be close to the water surface 15a of the flow path 15 . More specifically, the vertical length of the blade plate 35 positioned at the lower portion 33D of the first endless chain 33 (that is, the blade plate 35 in the second position whose rotation is restricted by the stopper 36) is defined as W4. . In this case, the distance W5 between the upper portion 33U of the first endless chain 33 and the water surface 15a of the flow path 15 is 0.5 times (5% length) or more and 1.0 times (10 % length).

With this arrangement, the upper portion 33U of the first endless chain 33 can be arranged close to the water surface 15a of the flow path 15. As shown in FIG. As a result, the distance between the lower portion 33D of the first endless chain 33 and the bottom portion 17 of the flow path 15 can be ensured to be sufficient for water flow. As a result, the blade plate 35 can effectively convert the water flow flowing through the lower portion 33</b>D of the first endless chain 33 into rotational force for causing the generator 2 to generate electricity.

Further, as shown in FIG. 2, the lower end of the blade plate 35 located at the lower portion 33D of the first endless chain 33 and the bottom portion 17 of the flow path 15 are close to each other. More specifically, the distance W6 between the lower end of the blade plate 35 located at the lower portion 33D of the first endless chain 33 and the bottom portion 17 of the flow path 15 is 0.1 times (10% of the length W4 of the blade plate 35). length) or more and 0.5 times (5% length) or less. For this purpose, the vertical length W4 of the blade plate 35 may be adjusted, or the vertical positions of the first endless chain 33 and the second endless chain 34 may be adjusted.

With this arrangement, the lower end of the blade plate 35 positioned at the lower portion 33D of the first endless chain 33 can be brought closer to the bottom portion 17 of the flow path 15. As shown in FIG. As a result, the water flow flowing under the first endless chain 33 can be efficiently received by the blade plate 35 .

By arranging the water wheel portion 3 as described above, the amount of water in the flow path 15 can be maximized. Thereby, the cost of the hydraulic power generator 1 (especially the water turbine part 3) can be reduced.

(6) Fixing Structure of Blade Plate As shown in FIG. 4, in the water turbine section 3, the blade plate 35 positioned at the lower portion 33D of the first endless chain 33 can be fixed in the first posture.

More specifically, each of the plurality of stoppers 36 is provided with a plurality (for example, two) of insertion holes 361 (see FIGS. 1 and 4). The insertion hole 361 is a hole for detachably inserting the fixing rod 12 . The fixing rod 12 is a rod for fixing the blade plate 35 located at the lower portion 33D of the first endless chain 33 in the first posture. The fixed rod 12 is made of metal, for example. The insertion hole 361 penetrates through the stopper 36 in the thickness direction (see FIG. 3). The insertion hole 361 is arranged on the outer peripheral side of the first endless chain 33 (below the plate mounting rod 352 in FIG. 3) from the plate mounting rod 352 of the blade plate 35 (see FIG. 3). The plurality of insertion holes 361 are arranged, for example, one near each end of the stopper 36 in the longitudinal direction (the width direction L1 of the flow path 15) (see FIG. 1). The multiple insertion holes 361 of each stopper 36 correspond to the multiple insertion holes 361 of all other stoppers 36 one-to-one. The corresponding insertion holes 361 of the plurality of stoppers 36 positioned in the lower portion 33D of the first endless chain 33 are arranged in a straight line along the direction in which the plurality of stoppers 36 are arranged (water flow direction R1). Further, the insertion holes 361 corresponding to the plurality of stoppers 36 positioned in the upper portion 33U of the first endless chain 33 are arranged in a straight line along the direction in which the plurality of stoppers 36 are arranged (water flow direction R1). . As a result, the fixed rod 12 can be linearly passed through the corresponding insertion holes 361 of the plurality of stoppers 36 positioned in the lower portion 33D of the first endless chain 33 (see FIG. 4).

The fixed rods 12 are inserted into the corresponding insertion holes 361 of the plurality of stoppers 36 located in the lower portion 33D of the first endless chain 33 (see FIG. 4). In this inserted state, the fixed rod 12 is arranged below the plurality of stoppers 36 positioned in the lower portion 33D of the first endless chain 33, and the plurality of stoppers 36 lowers the plurality of blades 35 in the first posture. supported from the side. Thereby, it is possible to fix the blade plate 35 positioned at the lower portion 33D of the first endless chain 33 in the first posture.

(7) Installation method of hydraulic power plant A method of installing the hydraulic power plant 1 will be described. As shown in FIG. 4 , the fixing rod 12 is inserted in advance by an operator into the insertion hole 361 of each of the plurality of stoppers 36 located in the lower portion 33D of the first endless chain 33 . Thereby, the plurality of blade plates 35 positioned at the lower portion 33D of the first endless chain 33 are fixed in the first posture. A pair of first fixing members 4 and a pair of second fixing members 5 are installed in advance on banks 16 on both sides of the channel 15 . In addition, the generator 2 is installed in advance on one bank 16 of the banks 16 on both sides.

Then, the hydraulic turbine section 3 is lifted from the shore 16 by a crane and submerged in a predetermined position of the flow path 15.例文帳に追加At this time, the projecting portions 37 a on both sides of the first rotating shaft member 37 of the water wheel section 3 are lowered near the pair of first fixing members 4 installed on both banks 16 . Moreover, the projecting portions 38 a on both sides of the second rotating shaft member 38 of the water wheel section 3 are lowered near the pair of second fixing members 5 installed on both banks 16 . Then, an operator rotatably fixes the protruding portions 37a on both sides of the first rotating shaft member 37 to the pair of first fixing members 4, and the protruding portions 38a on both sides of the second rotating shaft member 38 are attached to the pair of second rotating shaft members 38. It is rotatably fixed to the fixed member 5 . One protrusion 37a of the first rotating shaft member 37 is connected to the drive shaft of the generator 2 by the operator.

After the water wheel portion 3 is thus installed, the fixed rod 12 inserted into the water wheel portion 3 is pulled out by the operator. As a result, the plurality of blade plates 35 positioned at the lower portion 33D of the first endless chain 33 rotate to the second posture by their own weight and start receiving the water flow of the flow path 15 . As a result, the first endless chain 33 and the second endless chain 34 start rotating due to the water flow in the flow path 15, and the generator 2 starts generating power. That is, the operation of the hydraulic power plant 1 is started.

(8) Maintenance and Inspection Method for Hydraulic Power Generator When performing maintenance and inspection of the installed hydraulic power generator 1, for example, two rod-shaped members having buoyancy are moved from the upper portion 33U to the lower portion 33D of the first endless chain 33 by an operator. It is inserted into the flow path 15 so as to follow the lower surface of each blade plate 35 with respect to the plurality of blade plates 35 that move one after another. As a result, the plurality of blade plates 35 positioned at the lower portion 33D of the first endless chain 33 are supported from below by the two rod members and held in the first posture, and each blade plate 35 is protected from the water flow in the flow path 15. The force in the water flow direction R1 is hardly received, and as a result, the rotation of each of the first endless chain 33 and the second endless chain 34 is stopped. Then, maintenance and inspection of the hydroelectric power generator 1 is performed during this stop. Note that this maintenance and inspection includes the case of repairing the hydraulic power plant 1 when it fails, and the case of temporarily stopping the hydraulic power plant 1 . After the maintenance and inspection of the hydroelectric power generator 1, the rod member is removed by the operator. As a result, the operation of the hydroelectric generator 1 is restarted.

(9) Main Features of Hydraulic Power Generator In the hydraulic power generator 1 according to the present embodiment, the water turbine section 3 is arranged below the water surface 15a of the flow path 15 (that is, protrudes above the water surface 15a of the flow path 15). ), the hydraulic power generator 1 (especially the water turbine section 3) can be installed without spoiling the appearance of the flow path 15.

In addition, since the first endless chain 33 and the second endless chain 34 are spaced apart from each other in one horizontal direction (more specifically, the width direction L1 of the flow path 15), the first endless chain 33 and the second endless chain 34 are spaced apart from each other. The interval from the second endless chain 34 can be set to be long within the range of the width of the flow path 15. - 特許庁The length of the blade plate 35 in the lateral direction (the width direction L1 of the flow path 15) is determined according to the distance between the first endless chain 33 and the second endless chain 34. As shown in FIG. Therefore, the lateral length of the blade plate 35 can be set to be long within the range of the lateral width of the flow path 15 . As a result, the area of the main surface of the blade plate 35 (that is, the area of the surface that receives the water flow of the flow path 15) can be made sufficiently large, and the water flow of the flow path 15 is effective for the rotational force that drives the generator 2. can be converted to

Among the plurality of blade plates 35 , the blade plate 35 positioned at the upper portion 33</b>U of the first endless chain 33 rotates to the first posture in which the blade plate 35 is along the water flow direction R<b>1 of the flow path 15 . Most of the water that rises when the flow path 15 rises flows above the upper portion 33U of the first endless chain 33 . Therefore, it is possible to prevent damage to the hydroelectric power generator 1 (especially the water turbine section 3) due to the increased water when the flow path 15 is increased.

(Modification)
Modifications of the above embodiment will be described. In the following description, the same reference numerals are given to the same components as in the above embodiment, and the description is omitted, and the description will focus on the parts that differ from the above embodiment. It should be noted that the above embodiment and the following modifications may be implemented in combination.

(1) Modification 1
In the above embodiment, both the pair of first fixing members 4 are installed on the banks 16 on both sides of the channel 15, and both the pair of second fixing members 5 are installed on the banks 16 on both sides of the channel 15. (See Figure 1). On the other hand, in this modified example, one of the pair of first fixing members 4 , the first fixing member 4 , and one of the pair of second fixing members 5 , the second fixing member 5 , are installed on both sides of the channel 15 . 16 are installed. The other first fixing member 4 of the pair of first fixing members 4 and the other second fixing member 5 of the pair of second fixing members 5 are installed in the channel 15 . Here, the one first fixing member 4 and the one second fixing member 5 are fixing members on the same side. Therefore, the other first fixing member 4 and the other second fixing member 5 are also fixing members on the same side.

According to this configuration, one of the first endless chain 33 and the second endless chain 34 does not interfere with one of the pair of first fixing members 4 and one of the pair of second fixing members 5, and the flow path 15 is It can be installed close to one of the shores 16 on both sides. As a result, when the width of the flow path 15 is sufficiently wide, the first endless chain 33 and the second endless chain 34 do not have to approach the shores 16 on both sides of the flow path 15. By bringing only one of the second endless chains 34 closer to one bank 16 of the flow path 15, the lateral length of the blade plate 35 can be sufficiently secured.

(summary)
The present invention can take the following aspects from the above embodiments and modifications.

A hydraulic power plant (1) of a first aspect comprises a water wheel section (3) that converts water flow in a flow path (15) into rotational force for generating power with a generator (2). The water wheel portion (3) includes a pair of first gears (31), a pair of second gears (32), a first rotating shaft member (37), a second rotating shaft member (38), and a first endless It comprises a chain (33), a second endless chain (34), a plurality of blades (35), and a plurality of stoppers (36). The first rotating shaft member (37) connects the pair of first gears (31). The second rotating shaft member (38) is connected to the pair of second gears (32). The first endless chain (33) is stretched over one of the pair of first gears (31) and one of the pair of second gears (32). The second endless chain (34) is stretched over the other of the pair of first gears (31) and the other of the pair of second gears (32). A plurality of blade plates (35) are rotatable with each of the first endless chain (33) and the second endless chain (34) while straddling the first endless chain (33) and the second endless chain (34). and arranged in the circumferential direction of the first endless chain (33). A plurality of stoppers (36) are provided on at least one of the first endless chain (33) and the second endless chain (34) to restrict the rotation of the plurality of blade plates (35). The water wheel section (3) is installed under the water surface (15a) of the channel (15). The first endless chain (33) and the second endless chain (34) are spaced apart from each other in one horizontal direction (width direction L1). Among the plurality of blades (35), the blade (35) positioned at the lower portion (33D) of the first endless chain (33) is supported by the stopper (36) so that the blade (35) is positioned as seen in the one direction. Rotation of the blade plate (35) is restricted so as to intersect the water flow direction (R1) of the flow path (15). Among the plurality of blade plates (35), the blade plate (35) positioned above the first endless chain (33) (33U) is arranged in the water flow direction (R1) when viewed in the one direction. rotate along.

According to this configuration, the water flow in the flow path (15) can be effectively converted into a rotational force for generating power by the generator (2), and the flow path (15) can be installed without impairing the appearance of the flow path (15). It is possible to suppress the damage caused by the water flow when the water level of the channel (15) rises.

More specifically, since the water wheel section (3) is arranged below the water surface (15a) of the flow path (15) (that is, it does not protrude above the water surface (15a) of the flow path (15)), the water wheel section ( 3) can be installed in the channel (15) without spoiling the appearance of the channel (15).

In addition, since the first endless chain (33) and the second endless chain (34) are spaced apart from each other in one horizontal direction (the width direction L1), the first endless chain (33) and the second endless chain (33) are spaced apart from each other. The distance from the endless chain (34) can be set to be longer within the width of the channel (15). The length of the blade plate (35) in the lateral direction (width direction L1) is determined according to the distance between the first endless chain (33) and the second endless chain (34). Therefore, the length of the blade plate (35) in the lateral direction (width direction L1) can be set to be long within the range of the lateral width of the channel (15). As a result, the area of the main surface of the blade plate (35) (that is, the area of the surface that receives the water flow in the flow path (15)) can be made sufficiently large, and the water flow in the flow path (15) can be generated by the power generator (2). can be effectively converted into rotational force for power generation.

Further, among the plurality of blade plates (35), the blade plate (35) positioned above the first endless chain (33) (33U) is rotates along the water flow direction (R1) of the channel (15). Most of the water that rises when the flow path (15) rises flows above the upper portion (33U) of the first endless chain (33). Therefore, when the flow of water in the flow path (15) increases, it is possible to suppress damage to the hydraulic power generator (1) (especially the water turbine section (3)) due to the water flowing through the flow path (15).

The hydraulic power plant (1) of the second aspect, in the first aspect, further comprises a pair of first fixing members (4) and a pair of second fixing members (5). A pair of first fixing members (4) rotatably fix the first rotating shaft member (37). A pair of second fixing members (5) rotatably fix the second rotating shaft member (38). A pair of first fixing members (4) are installed on banks (16) on both sides of the channel (15). A pair of second fixing members (5) are installed on banks (16) on both sides of the channel (15).

According to this configuration, the first endless chain (33) and the second endless chain (34) are arranged in the flow path without interfering with the pair of first fixing members (4) and the pair of second fixing members (5). It can be installed close to the banks (16) on both sides of (15). As a result, the interval (W1) between the first endless chain (33) and the second endless chain (34) can be secured to be wider, and the length of the blade plate (35) in the lateral direction (width direction L1) can be increased. can be increased.

The hydraulic power plant (1) of the third aspect further comprises a pair of first fixing members (4) and a pair of second fixing members (5) in the first aspect. A pair of first fixing members (4) rotatably fix the first rotating shaft member (37). A pair of second fixing members (5) rotatably fix the second rotating shaft member (38). One of the pair of first fixing members (4) and one of the pair of second fixing members (5) are installed on one of banks (16) on both sides of the channel (15). The other of the pair of first fixing members (4) and the other of the pair of second fixing members (5) are installed in the channel (15).

According to this configuration, one of the first endless chain (33) and the second endless chain (34) interferes with one of the pair of first fixing members (4) and one of the pair of second fixing members (5). It can be installed close to one of the shores (16) on both sides of the channel (15) without having to do so. As a result, when the width of the flow path (15) is sufficiently wide, the first endless chain (33) and the second endless chain (34) do not approach the shores (16) on both sides. By bringing only one of the chain (33) and the second endless chain (34) closer to one bank (16), the distance (W1) between the first endless chain (33) and the second endless chain (34) is reduced. It can be ensured to be larger, and the length of the blade plate (35) in the lateral direction (width direction L1) can be increased.

The hydroelectric power plant (1) of the fourth aspect, in the first aspect, further comprises a generator (2). The generator (2) is installed on one bank (16) of the banks (16) on both sides of the channel (15).

According to this configuration, it is possible to prevent the generator (2) from being flooded by the water flow in the flow path (15). Also, one of the first endless chain (33) and the second endless chain (34) is brought close to one of the shores (16) on both sides of the flow path (15) without interfering with the generator (2). Can be installed. This makes it easier to increase the distance between the first endless chain (33) and the second endless chain (34), making it easier to increase the length of the blade plate (35) in the lateral direction (width direction L1).

In the hydraulic power plant (1) of the fifth aspect, in any one of the first to fourth aspects, the lower end of the blade plate (35) located at the lower portion (33D) of the first endless chain (33) and The distance (W6) between the flow path (15) and the bottom (17) is 0.1 to 0.5 times the vertical length (W4) of the blade plate (35) located in the lower part (33D). is.

According to this configuration, the lower end of the blade plate (35) positioned at the lower portion (33D) of the first endless chain (33) can be brought closer to the bottom (17) of the flow path (15). Thus, the blade plate (35) can efficiently receive the water flow flowing under the lower portion (33D) of the first endless chain (33).

In the hydraulic power plant (1) of the sixth aspect, in any one of the first to fifth aspects, the upper portion (33U) of the first endless chain (33) and the water surface (15a) of the flow path (15) The interval (W5) between the .

According to this configuration, the upper portion (33U) of the first endless chain (33) can be arranged close to the water surface (15a) of the flow path (15). As a result, the space between the lower portion (33D) of the first endless chain (33) and the bottom portion (17) of the flow path (15) can be ensured to allow sufficient water flow.

In the hydraulic power plant (1) of the seventh aspect, in any one of the first to sixth aspects, the first endless chain (33) and the banks (16) on both sides of the flow path (15) The distance (W2) between the first endless chain (33) and the opposing shore (16) is 0.05 times the distance (W1) between the first endless chain (33) and the second endless chain (34). 0.2 times or less.

According to this configuration, the first endless chain (33) can be arranged close to the bank (16) of the channel (15). Thereby, the interval (W1) between the first endless chain (33) and the second endless chain (34) can be made larger. As a result, the length of the blade plate (35) in one horizontal direction (the width direction L1) can be made longer, and the blade plate (35) causes the water flow in the flow path (15) to generate power for the generator (2). can be effectively converted into rotational force for

1 Hydraulic Power Generator 2 Generator 3 Water Wheel Section 4 First Fixed Member 5 Second Fixed Member 15 Flow Path 15a Water Surface 16 Bank 17 Bottom 31 First Gear 32 Second Gear 33 First Endless Chain 33D Lower 33U Upper 34 Second Endless Chain 35 Blade plate 36 Stopper 37 First rotating shaft member 38 Second rotating shaft member L1 Width direction of flow path (one horizontal direction)
R1 Water flow direction W1 to W6 Interval

Claims (7)

Equipped with a water wheel section that converts the water flow in the flow path into a rotational force for generating electricity by the generator,
The water wheel section is
a pair of first gears;
a pair of second gears;
a first rotating shaft member that connects the pair of first gears;
a second rotating shaft member that connects the pair of second gears;
a first endless chain stretched over one of the pair of first gears and one of the pair of second gears;
a second endless chain stretched over the other of the pair of first gears and the other of the pair of second gears;
A plurality of rotatably connected to each of the first endless chain and the second endless chain while straddling the first endless chain and the second endless chain and arranged in the circumferential direction of the first endless chain a blade and
a plurality of stoppers provided on at least one of the first endless chain and the second endless chain for restricting rotation of the plurality of blade plates;
with
The water wheel part is installed under the water surface of the flow path,
the first endless chain and the second endless chain are spaced apart from each other in one horizontal direction;
Among the plurality of blade plates, the blade plate positioned below the first endless chain is arranged by the stopper such that the blade plate intersects the water flow direction of the flow path when viewed in the one direction. rotation is regulated,
Among the plurality of blade plates, the blade plate positioned above the first endless chain rotates so that the blade plate is along the water flow direction when viewed in the one direction.
hydro power plant. a pair of first fixing members that rotatably fix the first rotating shaft member;
further comprising a pair of second fixing members that rotatably fix the second rotating shaft member;
The pair of first fixing members are installed on banks on both sides of the flow path,
The pair of second fixing members are installed on banks on both sides of the channel,
Hydraulic generator according to claim 1. a pair of first fixing members that rotatably fix the first rotating shaft member;
further comprising a pair of second fixing members that rotatably fix the second rotating shaft member;
one of the pair of first fixing members and one of the pair of second fixing members are installed on one of banks on both sides of the flow channel,
The other of the pair of first fixing members and the other of the pair of second fixing members are installed in the channel,
Hydraulic generator according to claim 1. Further comprising the generator installed on one of the banks on both sides of the flow path,
Hydraulic generator according to claim 1. The distance between the lower end of the blade plate located at the lower portion of the first endless chain and the bottom portion of the flow path is 0.1 times or more the vertical length of the blade plate located at the lower portion and 0.5 times. is less than or equal to
Hydraulic power generator according to any one of claims 1 to 4. The distance between the upper portion of the first endless chain and the water surface of the flow path is 0.5 times or more and 1.0 times or less the vertical length of the blade plate positioned in the lower portion of the first endless chain. is
Hydraulic power generator according to any one of claims 1 to 5. The distance between the first endless chain and the shore facing the first endless chain among the shores on both sides of the flow path is 0.05 of the distance between the first endless chain and the second endless chain. times or more and 0.2 times or less,
Hydraulic power generator according to any one of claims 1 to 6.

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