KR102567836B1 - hydro power plant and its fixtures - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention provides a hydropower generation device that does not require construction of a waterway and its surroundings and can be installed in a waterway simply and inexpensively. The hydroelectric power generation device 1 includes a hydroelectric power generating device body 2 having an impeller 5 and a generator 6, a support frame 3 supporting the hydroelectric power generating device body 2, and a support frame 3 ) to the side walls 52 on both sides of the channel 50, respectively, provided with a plurality of fixtures 4A. Each fixture 4A includes a frame mounting portion 11 mounted on the upper surface of the corresponding side wall 52 of the waterway 50 and a pair of clamping portions extending downward from both ends of the frame mounting portion 11, respectively ( 12, 13). In order to install the hydropower generation device 1 in the water conduit 50, the side end of the support frame 3 is mounted on the frame mount 11 and fixed. Then, the fixture 4A is fixed to the side wall 52 by clamping the inner and outer surfaces of the side wall 52 with a pair of clamping parts 12 and 13, respectively.

Description

hydro power plant and its fixtures

This application claims the priority of Japanese Patent Application No. 2017-238264 dated December 13, 2017, and the whole is incorporated as forming part of this application by reference.

The present invention relates to a hydroelectric power generation device installed in a water channel such as a relatively small river or irrigation canal, and a fixture for fixing the hydroelectric power generation device to a side wall of the water channel.

In the case of installing a small-scale hydroelectric power generation device in a waterway such as an agricultural waterway or an aqueduct for water supply, it is necessary to fix the installation position of the hydroelectric power generation device so that it does not move due to water flow or the like. In general, after foundation work is performed on the waterway itself or around the waterway, the hydropower generation device is installed.

In the following patent documents, various installation examples of hydroelectric power generation devices are disclosed.

Patent Literature 1 relates to an axial flow water wheel power generation device that is immersed in running water and generates power by the flowing water. It is equipped with an outer cylindrical body which expands gradually, and an inner cylindrical body at least one part of which is provided inside the outer cylindrical body. The runner rotatably attached to the inner cylindrical body is rotated by running water around a rotational axis extending in the direction of the main stream. In Patent Literature 1, as an example of installation, it is described that installation tables are installed on the ground on both sides of the waterway, and the inner cylindrical body is fixed to the installation tables via fixing members.

Patent Literature 2 proposes an underwater generator in which a generator is installed inside a column supporting a water turbine, and the rotational movement force of the water turbine is transmitted to the generator through a gear or the like. By making the rotational axis of the water turbine a vertical axis, it is not necessary to turn at right angles to the direction of the water flow like in the propeller method. Therefore, it can be applied as it is to tidal currents whose flow changes with time. Patent Literature 2 describes fixing a post to a bedrock of a river or seabed and directly installing it to the bedrock as an installation example.

Patent Literature 3 relates to a hydroelectric power generation device for the purpose of being easily installed in a waterway. In this hydroelectric power generation device, a horizontal rotor support housing having a rotor is integrally fixed in a support annular body with a retainer installed upright on the upper surface, and further protrudes upward from the support annular body. Install the generator on top of the sieve. The support annular body is formed with a mounting portion for fixing the rotor support housing to the waterway. In Patent Literature 3, as an installation example for an irrigation canal, it is described that a suspension member is fixed to the mounting portion of the support ring body, and a hydroelectric power generation device is suspended and installed on a beam girder installed in the irrigation canal by this suspension member. there is.

Patent Literature 4 relates to a hydropower generator that is compact and convenient for carrying. In a hydroelectric power generator, a water turbine is attached to a downward rotational shaft installed in a float, a mooring rope is attached to the float, and a generator rotated by the rotational shaft is installed above the rotational shaft. The angle of the rotating shaft with respect to the float may be variable. This hydropower generating device is moored in a state of floating on a river by means of a float, for example.

Japanese Unexamined Patent Publication No. 2014-145347

Japanese Unexamined Patent Publication No. 2009-36113

Japanese Unexamined Patent Publication No. 2017-150376

Japanese Unexamined Patent Publication No. 2001-289145

Conventionally, installing a hydroelectric power generation device after foundation work requires a large amount of cost for foundation work and installation work. In addition, when a hydroelectric power generation device is installed by carrying out foundation work or installation work, in order to change the installation position of the hydroelectric power device after the construction, a new work is required. Therefore, once the hydroelectric power generation device is installed, it is practically impossible to change the installation location thereafter. In addition, in the case of performing construction such as driving anchor bolts into the side walls of waterways, there is a concern about reducing the strength of the side walls. In agricultural waterways and the like, there are cases in which additional construction of waterways is impossible.

Patent Literature 1 shows that a mounting table for installing a hydroelectric power generator is placed on the ground on both sides of the waterway, but there is no specific description of a method for fixing the mounting table. If the mount is not fixed, there is a possibility that the axial flow water turbine generator device may flow due to water flow or the like. In the case of fixing by fixing by driving anchor bolts into the ground, concrete foundation work is required, which incurs costs.

Like Patent Literature 2, since large-scale construction is required to directly install an underwater generator on a bedrock of a river or a bedrock of the seabed, the construction cost tends to be high. In addition, there is a possibility that the strength of the bedrock of the river or the bedrock of the sea may decrease due to the construction, and the installation state of the underwater generator may become unstable.

In Patent Document 3, it is described that a hydroelectric power generation device is suspended from a beam girder installed in a irrigation canal, but there is no specific description about a method for fixing a beam girder installed in a irrigation canal. If the beam girder is not fixed, since the installation position of the hydroelectric power generation device including the beam girder may move due to water flow, fixing the beam girder is essential. For example, when anchor bolts to the irrigation canal are driven into the fixing of the beam girder, there is a possibility that the irrigation canal itself may deteriorate in strength, and there is a concern that the construction cost will increase.

Patent Literature 4 describes that a mooring rope is attached to a float, and a hydroelectric generator is moored in a state where the mooring rope floats on the flow of a river. Although a method of fixing the mooring rope to the river bank or the like is not described, for example, a fixing method such as driving an anchor into the ground around a river can be considered. When the ground around the river is covered with soil or pebbles, the anchor can be easily driven in, so the construction is unnecessary. Not suitable for long-term mooring. In the case where the ground around the river is covered with asphalt or concrete, since construction is required to anchor anchors, there is a concern that the construction cost will increase.

An object of the present invention is to provide a hydropower generation device that can be installed in a waterway simply and inexpensively without requiring construction on the waterway and its surroundings.

The hydroelectric power generation device of the present invention includes a hydroelectric power generator main body having an impeller that converts hydraulic power into rotational force and a generator that generates power by rotation of the impeller, a support frame for supporting the hydroelectric power generator main body, A plurality of fixtures for fixing this support frame to the side walls on both sides of the waterway, respectively, are provided. Each of the fixtures is mounted on the upper surface of the corresponding side wall of the waterway and extends downward from both ends of the frame placing part and the frame placing part for mounting and fixing the side end of the support frame, respectively, and the side wall It has a pair of clamping parts (挾入部; clamping parts) for clamping the side wall by abutting on the inner and outer surfaces, respectively.

According to this configuration, the side end of the support frame is mounted on the frame mounting portion of the fixture, and the fixture is fixed to the side wall of the water channel by clamping the side wall of the water channel from both sides at a pair of clamping portions. The clamping of the side wall by the pair of clamping parts is performed, for example, by tightening bolts or the like. In this way, if the side end of the support frame is fixed to the side wall of the waterway, it is not necessary to perform foundation work or anchoring work on the sidewall of the waterway or its surroundings. Therefore, it is possible to simply and inexpensively install the hydropower generation device in the waterway without damaging the side wall of the waterway. In addition, it is easy to change the installation position of the hydroelectric power generation device. In addition, since the side wall of the water channel is not damaged, the strength of the side wall does not deteriorate.

Each of the fixtures includes an inner fixture having a first clamping part as a first clamping part of the pair of clamping parts and having a first clamping part contacting the inner surface of the side wall, and a second clamping part of the pair of clamping parts, the side wall It may have an outer fixture having a second clamping part contacting the outer surface of the outer fixture, and a coupling means for coupling the inner fixture and the outer fixture to each other so as to adjust the distance between the first and second clamping parts. The frame mounting portion may be provided on either one of the inner fixing body and the outer fixing body steps, or may be provided on both sides.

In the fixture having this configuration, a fixture having a frame mounting portion among the inner fixture and the outer fixture is mounted on the upper end surface of the side wall, and the side end of the support frame is mounted and fixed on the frame mount. Then, the inner and outer surfaces of the side wall are interposed between the clamping part of the inner fixture and the clamping part of the outer fixture to fix the fixture to the side wall. Since the fixture is divided into an inner fixture and an outer fixture, it is easy to adjust the distance between the two clamping parts according to the width of the upper end of the side wall. Further, since it is not necessary to provide a mechanism for adjusting the distance between the two clamping parts to any clamping part, each clamping part can have a simple structure.

When each fixture is divided into an inner fixture and an outer fixture, between the inner fixture and the outer fixture, both ends directly or indirectly connect to the inner fixture and the outer fixture, respectively. A spacer in contact with may be interposed. According to this configuration, the length of the fixture can be easily adjusted according to the width of the upper end of the side wall of the waterway by using a spacer sheet having an appropriate size.

Instead, when each fixture is divided into an inner fixture and an outer fixture, the fixture is an intermediate member fixed to either one of the inner fixture and the outer fixture so as to be able to adjust the position of the channel in the width direction. , and this intermediate member may be coupled to either of the inner fixing body and the outer fixing body by the engaging means. According to this configuration, the length of the fixture can be easily adjusted within a wide range according to the width of the upper end of the side wall of the waterway by appropriately adjusting the position of the intermediate member in the width direction of the waterway with respect to one fixture. .

In each of the fixtures, an elastic body may be provided on a contact surface with the side wall on one or both of the first and second clamping portions. Since the elastic body is installed on the contact surface with the side wall, the side wall is not damaged by clamping the side wall in the pair of clamping parts, and the contact between the side wall and the clamping part is more intimate, and the fixing strength of the fixture to the side wall is increased. do.

[0025] Each of the fixtures may be provided with a pressurizing means for pressing at least one of the first and second clamping parts toward the other clamping part. By pressing the two clamping portions against the inner and outer surfaces of the side wall by means of the pressing means, the force for clamping the side wall by the pair of clamping portions is stabilized, so that the fixture can be stably fixed to the side wall. In addition, when elastic bodies are provided on the contact surface with the side walls of the clamping portion, even if these elastic bodies are deteriorated due to abrasion or the like, the pressing means presses the elastic bodies against the side walls, so that the clamping force of the pair of clamping portions can be maintained.

The frame mounting portion of each fixture may have a stopper for restricting movement of the side end portion of the mounted support frame in the water flow direction of the water passage. When the impeller of the main body of the hydropower generator receives the water flow, a force in the direction of the water flow acts on the side end portion of the support frame. However, since the stopper of the frame mount receives the force in the water flow direction acting on the side end of the support frame, even if the side end of the support frame is not fixed to the frame mount, the side end of the support frame does not move in the direction of the water flow. Therefore, there is no need to hold the side end of the support frame by human hands or the like so as not to move, and the work of fixing the side end of the support frame to the frame mounting portion is easy.

Each of the fixtures may have a pressing member capable of pressing the end face of the side end of the support frame mounted on the frame mounting portion in the channel width direction. With respect to the fixtures on both sides of the waterway, the support frame is restrained so that it does not move in the waterway width direction by pressing pressing parts in the waterway width direction in opposite directions to each other on both end surfaces of the support frame mounted on each frame mounting portion. Thus, the support frame is positioned in the channel width direction.

A fixture for a hydroelectric power generation device according to the present invention comprises a main body of a hydroelectric power generator having an impeller that converts hydraulic power into rotational force and a generator that generates power by the rotation of the impeller, and a support frame supporting the main body of the hydroelectric power generator. It is configured to fix the equipped hydroelectric power generation device to the side wall of the waterway. The fixture includes an inner fixture having a first clamping part contacting the inner surface of the side wall, an outer fixture having a second clamping part contacting the outer surface of the side wall, and a distance between the first and second clamping parts being controlled. and coupling means for coupling the inner fixture and the outer fixture to each other so as to be mounted on either one or both of the inner fixture and the outer fixture, on the upper surface of the side wall of the waterway, and of the support frame. A frame mounting portion for mounting and fixing the side end portion is provided.

In the fixture having this configuration, a fixture having a frame mounting portion among the inner fixture and the outer fixture is mounted on the top surface of the side wall, and the side end of the support frame is mounted and fixed on the frame mount. Then, the inner and outer surfaces of the side wall are inserted into the clamping portions of the inner and outer fixtures to fix the fixture to the side wall. Since the fixture is divided into an inner fixture and an outer fixture, it is easy to adjust the distance between the two clamping parts according to the width of the upper end of the side wall. In addition, since it is not necessary to provide a mechanism for adjusting the distance between the two clamping portions to each clamping portion, each clamping portion can be configured with a simple structure.

Any combination of two or more elements disclosed in the claims and/or specification and/or drawings is included in the present invention. In particular, any combination of two or more of each of the claims is encompassed by the present invention.
The present invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings. However, the embodiments and drawings are for mere illustration and description, and are not used to define the scope of the present invention. The scope of the present invention is defined by the appended claims. In the accompanying drawings, the same reference numerals in a plurality of drawings denote the same or corresponding parts.
1 is a perspective view showing an installed state of a hydroelectric power generation device according to an embodiment of the present invention.
FIG. 2 is a front view of a waterway in which the hydroelectric power generation device of FIG. 1 is installed, viewed from a water flow direction.
3 is a perspective view of a first example of a fixture for securing the hydroelectric device of FIG. 1;
4A is an assembled front view of a first example of the fixture of FIG. 3;
4b is an exploded front view of the fixture of FIG. 4a.
5 is a front view showing a first process of fixing the side end of the support frame to the side wall of the waterway using the first example of the fixture of FIG. 3;
Figure 6 is a front view showing a second process of fixing the side end of the support frame to the side wall of the waterway using the first example of the fixture of Figure 3;
7 is a front view showing a third process of fixing the side end of the support frame to the side wall of the waterway using the first example of the fixture of FIG. 3;
8 is a front view showing a fourth process of fixing the side end of the support frame to the side wall of the waterway using the first example of the fixture of FIG. 3;
9 is a front view showing a fifth process of fixing the side end of the support frame to the side wall of the waterway using the first example of the fixture of FIG. 3;
10 is a front view showing a first process of fixing a second example of fixture to the side wall of the waterway.
11 is a front view showing a second process of fixing a second example of fixture to the side wall of the waterway.
12A is a plan view illustrating a first process of fixing a third example of fixture to the side wall of a waterway.
Fig. 12B is a front view corresponding to Fig. 12A.
13A is a plan view illustrating a second process of fixing a third example of fixture to the side wall of the waterway.
Fig. 13B is a front view corresponding to Fig. 13A.
14 is a front view of a fourth example of a fixture.
15 is a front view of a fifth example of a fixture.

EMBODIMENT OF THE INVENTION Embodiment of this invention is described together with drawing.

Fig. 1 is a perspective view showing an installation state of a hydroelectric power generation device according to an embodiment of the present invention, and Fig. 2 is a front view of a water channel in which the hydroelectric power generating device is installed, viewed from a water flow direction. This hydroelectric power generation device 1 is installed in a waterway 50 with running water, such as a river or irrigation canal, for example, and generates power with the power of running water. The conduit 50 has a U-shaped cross section composed of a bottom portion 51 and side walls 52 and 52 on both sides. At the upper end of each side wall 52, a reinforcing edge 52a protruding outward of the water channel 50 is formed. The bottom portion 51 and the side walls 52 and 52 are integrally formed of, for example, concrete.

The hydroelectric power generator 1 includes a hydroelectric power generator main body 2, a support frame 3 supporting the hydroelectric power generator main body 2, and both side ends of the support frame 3 through water channels ( 50) is provided with a plurality of fixtures 4A for fixing to the corresponding side walls 52.

The hydroelectric power generation device body 2 includes an impeller 5 submerged in running water when installed, and a generator 6 positioned above running water when installed. Upon receiving the water flow, the impeller 5 converts the hydraulic power into rotational force, and the rotation of the impeller 5 generates electricity for the generator 6. The impeller 5 of the example in the drawing is a propeller type in which the axis of rotation L is parallel to the water flow direction. The impeller 5 includes a hub 5a installed on the rotation axis L, and a plurality of (eg, five) blades extending radially outward in the radial direction from the outer circumferential surface of the hub 5a. ) (5b).

The hub 5a of the impeller 5 is attached to a blade shaft (not shown) extending from the gearbox 7 along the water flow direction. The blade shaft is rotatably supported by a bearing (not shown) in the gear box 7 . The gearbox 7 is supported by the lower end of a support cylinder 8 extending downward from the bottom surface of the generator 6. A power transmission shaft (not shown) is installed in the support cylinder 8 . The said blade shaft and power transmission shaft are connected via the gear mechanism (not shown) in the gearbox 7 so that power transmission is possible. The gear mechanism is composed of, for example, a combination of bevel gears, and increases and transmits rotational movement force from the wing shaft to the power transmission shaft. Rotation of the impeller 5 is transmitted to the generator 6 through these blade shafts, gear mechanisms, and power transmission shafts.

The support frame 3 is composed of two beams 10 each crossing between the side walls 52 and 52 on both sides of the channel 50 . Each beam 10 is spaced apart from each other in the water flow direction and is arranged. Then, the hydraulic power generator main body 2 is supported by respectively supporting both ends of the two beams 10 and the generator 6 in the water flow direction.

[First example of fixture]

As shown in Figs. 3 and 4A and 4B, the fixture 4A is mounted on the upper surface of the side wall 52 (Figs. 1 and 2) of the conduit 50 (Figs. 1 and 2) in use. a frame mounting portion 11 and a pair of clamping parts 12 and 13 extending downward from both ends of the frame mounting portion 11 and abutting the inner and outer surfaces of the side wall 52, respectively. provide In the case of this embodiment, the fixture 4A is divided into an inner fixture 14 and an outer fixture 15, and these inner fixture 14 and outer fixture 15 are coupled to the coupling means 16. It is designed to be coupled to each other detachably (着脫) by. In the inner fixing body 14, the frame mounting portion 11 and the clamping portion 12 abutting the inner surface of the side wall 52 are integrally formed. The outer fixture 15 includes a clamping portion 13 that comes into contact with the outer surface of the side wall 52 .

The frame mounting portion 11 of the inner fixed body 14 includes a bottom plate 11a on which an end portion of the beam 10 (Figs. 1 and 2) is mounted, and the front and rear directions of the bottom plate 11a. It consists of two plate-shaped stoppers (11b) and (11b) each rising upward from both ends of the edge. Each stopper 11b rises from the entire area of the bottom plate 11a in the inward and outward direction. Here, the front-back direction refers to the water flow direction at the time of installation of the hydroelectric power generation device 1 . In addition, the inward and outward direction refers to the channel width direction at the time of installation of the hydroelectric power generation device 1, and the side closer to the channel 50 (FIGS. 1 and 2) and the inner side, and the far side are set to the outer side. And the "side end part of a support frame" described in this indication exists at the end part of the beam 10.

In addition, the frame mounting portion 11 is provided with a positioning member 18 for determining the position of the end of the beam 10 on the bottom plate 11a in the inward and outward direction. This positioning member 18 is thin in the inward and outward direction and has a plate shape extending in the front and rear direction, and has a plurality of screw holes 19 penetrating in the inward and outward direction. The positioning member 18 is fixed to the bottom plate 11a and the stoppers 11b on both sides by welding or the like. The fixed position of the positioning member 18 in the inward and outward direction is determined according to the length of the side end portion of the beam 10 mounted on the frame mounting portion 11 .

At a position near the inner end of each stopper 11b, a plurality of fixing bolt holes 20 through which fixing bolts 35 (FIGS. 4A and 4B) described later are inserted (for example, three ) is formed. Further, a planar L-shaped engaging member 21 is attached to the outer end of each stopper 11b by a plurality of bolts 22 and nuts 23 . In the member 21 for engagement, a bolt hole 24 (FIGS. 4A and 4B) for engagement is formed in a portion 21a protruding in the front-rear direction from the stopper 11b. Further, elastic bodies 25 and 26 made of rubber or the like are provided on the upper and lower surfaces of the bottom plate 11a of the frame mounting portion 11, respectively.

The clamping portion 12 of the inner fixing body 14 includes a side wall abutment portion 12a extending downward in the width direction from the inner end of the frame mounting portion 11, and this side wall abutment portion ( It consists of two reinforcing parts 12b and 12b extending inward from both ends of 12a), respectively. The upper end of each reinforcement part 12b is connected with the corresponding stopper 11b. An elastic body 27 made of a rubber material or the like similar to the elastic bodies 25 and 26 is provided on the outer surface of the side wall abutting portion 12a, which is a contact surface with the side wall 52.

The outer fixture 15 has an L-shape when viewed from the front, and a portion along the front-back direction constitutes a clamping portion 13 that abuts against the outer wall surface of the side wall 52 . In the clamping portion 13, a coupling bolt hole 28 (FIGS. 4A and 4B) is formed at a position corresponding to the coupling bolt hole 24 of the coupling member 21. An elastic body 29 made of a rubber material or the like similar to the elastic bodies 25 and 26 is provided on the inner surface of the clamping portion 13 as a contact surface with the side wall 52 .

The coupling means 16 is a bolt 31 inserted into the coupling bolt holes 24 and 24 of the coupling members 21 and 21 and the coupling bolt holes 28 and 28 of the clamping portion 13, (31), and nuts 32 each screwed to these bolts 31.

[Installation of hydroelectric power generation device]

When installing this hydropower generation device 1 to the water conduit 50, the both ends of the two beams 10 of the support frame 3 are respectively connected to the side walls 52 on both sides of the water conduit 50 via the fixtures 4A. ) is fixed. Hereinafter, the fixing method is demonstrated.

First, as shown in FIG. 5 , the inner fixture 14 is mounted on the top surface of the side wall 52 so that the clamping part 12 is positioned inside the side wall 52 . The inner fixture 14 is in contact with the top surface of the side wall 52 through the elastic body 26 . In addition, the outer fixing body 15 is disposed on the outside of the side wall 52, and the bolts 31 inserted into the bolt holes 24 and 28 for coupling of the inner and outer fixing bodies 14 and 15 6, the inner fixing body 14 and the outer fixing body 15 are coupled with the nut 32 or the like screwed to the bolt 31, as shown in FIG. By further tightening the bolts 31 from this state, the clamping portions 12 and 13 of the inner fixing body 14 and the outer fixing body 15 and the inner and outer surfaces of the side walls 52 are fitted, (4A) is fixed to the side wall (52).

In the fixed state of the fixture 4A, the elastic bodies 26 and 27 are applied to the contact surface with the side wall 52 in the frame mounting portion 11 and the contact surface with the side wall 52 in each clamping portion 12 and 13. , 29) are provided, respectively, so that the side wall 52 is not damaged. Further, the contact between the side wall 52 and the clamping portions 12 and 13 becomes more intimate, so that the fixing strength of the fixture 4A to the side wall 52 increases.

Next, as shown in FIG. 7, the end of the beam 10 is mounted on the bottom plate 11a of the frame mounting portion 11, and between the end face of the beam 10 and the positioning member 18 Insert the pressing part (34) into. The pressing part 34 is a plate-shaped part having a size substantially equal to that of the cross section of the beam 10 . And as shown in FIG. 8, the edge part of the beam 10 is fixed to 4 A of fixtures.

The fixing of the end of the beam 10 is performed using a fixing bolt 35, a fixing bolt hole 20 of one stopper 11b, and a long hole 36 formed at the end of the beam 10 ( 7), and the fixing bolt hole 20 of the other stopper 11b in this order, and it performs by screwing a nut (not shown) to the projecting end of the fixing bolt 35. And the long hole 36 of the beam 10 penetrates in the width direction of the beam 10, and is a hole long in the longitudinal direction of the beam 10. Fixing by such a fixing bolt 35 is performed with respect to the several fixing bolt hole 20. In the example of FIG. 8, it is performing with respect to two fixing bolt holes 20 among three fixing bolt holes 20.

Since the frame mounting part 11 has the stopper 11b, the work of fixing the end part of the said beam 10 to the frame mounting part 11 can be performed easily. That is, when the impeller 5 receives the water flow during the installation work, the force in the direction of the water flow acts on the beam 10 of the support frame 3 . However, since the stopper 11b on the downstream side receives the force in the water flow direction acting on the end of the beam 10, even if the beam 10 is not fixed to the frame mount 11, the beam 10 moves in the water flow direction do not move with Therefore, there is no need to support the beam 10 by human hands or the like so as not to move, and the work of fixing the end of the beam 10 to the frame mounting portion 11 is easily performed. Since the stopper 11b is provided on both sides of the bottom plate 11a of the frame mounting portion 11, regardless of the direction of the water flow, the force in the direction of the water flow acting on the beam 10 can be received by the stopper 11b there is.

After fixing the end of the beam 10 to the fixture 4A, as shown in FIG. 9, the screw hole 19 (see FIG. 3) of the positioning member 18 is a pressing member 37 made of a bolt. is screwed in, and the tip of the pressing member 37 is pressed against the end face of the beam 10 through the pressing part 34. By changing the screwing amount of the pressing member 37, the position of the cross section of the beam 10 in the inward and outward direction is adjusted. With respect to fixtures 4A on both sides of the waterway 30, by pressing the pressing members 37 to both end surfaces of the beam 10 as described above, the beam 10 is restrained so as not to move in the inward and outward directions, and the beam (10) is positioned in the channel width direction. After positioning once, it is also possible to adjust the position in the width direction by the number of beams 10 . As the pressing member 37, you may press the pressing part 34 to the end surface of the beam 10 using a spring etc. instead of a bolt.

In this way, the end of the beam 10 is mounted and fixed on the frame mounting portion 11 of the fixture 4A, and the fixture 4A is clamped to the clamping parts 12 and 13 and the side wall 52 of the water channel 50. ) to the side wall 52 by clamping from both sides. The position of the beam 10 in the water flow direction can be determined by the stopper 11b, and the position in the channel width direction is determined by the pressing member 37. In this way, the position in the water flow direction and the position in the width direction of the water channel of the hydropower generator main body 2 are determined.

If the end of the beam 10 is fixed to the side wall 52 of the waterway 50 in this way, it is not necessary to perform foundation work or anchor type work on the side wall 52 or its surroundings. Therefore, the hydroelectric power generation device 1 can be simply and inexpensively installed in the conduit 50 without damaging the side wall 52 . In addition, it is easy to change the installation position of the hydroelectric power plant 1. In addition, since the side wall 52 of the channel 50 is not damaged, the strength of the side wall 52 does not deteriorate.

Since the fixture 4A is divided into the inner fixture 14 and the outer fixture 15, it is easy to adjust the distance between the clamping portions 12 and 13 according to the width of the upper end of the side wall 52. Further, since it is not necessary to provide a mechanism for adjusting the distance between the clamping portions 12 and 13 to any of the clamping portions 12 and 13, each clamping portion 12 and 13 can have a simple configuration.

[Second example of fixture]

10 and 11 show a second example of a fixture. In this fastener 4B, a spacer 40 is interposed between the inner fixing body 14 and the outer fixing body 15. The spacer 40 is block-shaped with both ends in contact with the inner fixing body 14 and the outer fixing body 15, respectively, and has bolt holes 41 for coupling penetrating inward and outward. The configuration other than the spacer 40 is the same as that of the first example.

This fastener 4B is composed of bolts 31 inserted through bolt holes 24, 41, and 28 of the inner fixed body 14, the spacer 40, and the outer fixed body 15, respectively, and these bolts ( 31), the inner fixing body 14 and the outer fixing body 15 are coupled via the spacer 40, as shown in FIG. Thus, by interposing the spacer 40 between the inner fixture 14 and the outer fixture 15, the width of the upper end of the side wall 52 is wide, and the inner fixture 14 and the outer fixture 15 ) alone, the length of the fixture 4B can be easily adjusted when the dimensions in the inward and outward directions are insufficient. Even when the installation location of the hydroelectric power generation device 1 is changed, or when the hydroelectric power generation device 1 is installed in another waterway, according to the width of the upper end of the side wall of the waterway, the dimensions in the inward and outward direction that match the width It can respond by manufacturing a spacer 40 with a spacer and preparing a bolt 31 having a length matched thereto.

[The third example of a fixture]

12a, 12b, and 13a and 13b show a third example of a fixture. This fixture 4C is provided with intermediate members 42, 42 which are position-adjustable in the inward and outward directions with respect to the inner fixture 14 instead of the engaging members 21, 21 in the fixture 4A of the first example. do. Each intermediate member 42 is formed with a long hole 43 extending in an inward and outward direction, and the long hole 43 and the bolt hole (not shown) formed in the stopper 11b of the inner fixture 14 are inserted. The intermediate member 42 is fixed to the inner fixing body 14 by means of bolts 22 and nuts 23 screwed onto bolts 22 and the like. By changing the insertion position of the bolt 22 in the long hole 43, the position of the intermediate member 42 in the inward and outward direction can be adjusted. Similar to the coupling member 21, the intermediate member 42 also has a portion 42a that protrudes outward from the stopper 11b in the front-back direction. 16) is coupled to the outer fixture 15.

Configurations other than these are the same as those of the first example.

According to this configuration, the effective length of the fixture 4C, that is, the distance between the clamping portions 12 and 13 can be adjusted by adjusting the position of the intermediate member 42 relative to the inner fixture 14 in the inward and outward directions. there is. 12A and 12B show a state in which the effective length of the fastener 4C is the shortest, and FIGS. 13A and 13B show a state in which the effective length of the fastener 4C is the longest. In this way, since the effective length of the fixture 4C can be greatly adjusted, the length of the fixture 4C can be easily adjusted in a wide range according to the width of the upper end of the side wall 52 of the waterway 50. In addition, it is not necessary to prepare bolts 31 and nuts 32 that match the width of the upper end of the side wall 52 like the fixture 4B using the spacer 40 of the second example.

[Fourth Example of Fixture]

14 shows a fourth example of a fixture. This fixture 4D has a different outer fixture 15 compared to the fixtures 4A, 4B, and 4C of the first to third examples. That is, in the outer fixture 15 of the fixture 4D, the elastic body 29 is pressed inward by the pressing means against the L-shaped outer fixture main body 15a when viewed from the front. In this example, the elastic body 29 serves as the clamping portion 13 of the outer fixture 15. In other words, the clamping part 13 of the outer fixture 15 is pressed toward the clamping part 12 of the inner fixture 14 by the pressing means.

In the example of the drawing, the pressing means is composed of a compression spring 45 . In detail, the guide shaft 46 fixed to the elastic body 29 is inserted through a through hole (not shown) formed in the outer stationary body 15a so as to be able to advance and retreat in the inward and outward direction. Then, the compression spring 45 made of a coil spring is installed between the outer periphery of the guide shaft 46 and between the elastic body 29 and the outer stationary body 15a. A double nut 48 for separation prevention is screwed into the threaded portion provided at the tip of the guide shaft 46. The pressing means may be anything other than the compression spring 45 .

Configurations other than these are the same as those of the first example.

According to this configuration, when the fixture 4D is fixed to the side wall 52 of the water channel 50, the elastic body 29, which is the clamping portion 13, is moved to the side wall ( 52) is pressed on the outer surface. As a result, the clamping portion 12 of the inner fixture 14 is also pressed against the inner surface of the side wall 52, and the side wall 52 is clamped from both sides by both clamping portions 12 and 13.

In this way, the pair of clamping parts 12 and 13 and the side wall 52 are clamped by pressing the clamping parts 12 and 13 against the inner and outer surfaces of the side wall 52, respectively, by the compression spring 45. The applied force is stable, and the fixture 4D can be stably fixed to the side wall 52 . For example, even if the bolt 31 and the nut 32 of the coupling means 16 are overtightened, the clamping force of the pair of clamping portions 12 and 13 is the maximum compression of the compression spring 45. Do not exceed the restoring force. Therefore, too strong pinching force does not damage the side wall 52 or the fixture 4D itself. In addition, even when the elastic bodies 27 and 29 of the clamping portions 12 and 13 are deteriorated due to wear and the like, the force for clamping the side wall 52 can be maintained by the restoring force of the compression spring 45.

In each of the fasteners 4A, 4B, 4C, and 4D of the first to fourth examples, the frame mounting portion 11 is provided on the inner fixing body 14, but the frame mounting portion 11 is the outer fixing body 15 may be installed on In addition, the frame mounting portion 11 may be provided on both the inner fixed body 14 and the outer fixed body 15 .

[Fifth example of fixture]

15 shows a fifth example of a fixture. This fixture 4E is not divided into an inner fixture 14 and an outer fixture 15 like the fixtures 4A, 4B, 4C and 4D. The first (eg, inner) clamping portion 12 extends downward from one end of the frame mounting portion 11, similarly to the fasteners 4A, 4B, 4C, and 4D, and the side wall ( An elastic body 27 is provided on the contact surface with 52). In contrast, the second (e.g., outer) clamping portion 13 is a compression spring ( 45), it is pressed against the side (inside) of the first clamping portion 12. The clamping part 13 is made of an elastic body. The compression spring 45 and related components are the same as in the fourth example.

This fixture 4E is at an upper end than the distance A between the clamping portion 12 and the clamping portion 13 when the compression spring 45 is at its natural length, that is, when no external force acts on the compression spring 45. It can be fixed to the wide side wall 52 of the. In a state where the length of the compression spring 45 is shortened by tightening the double nut 48, the side wall 52 is clamped by the pair of clamping parts 12 and 13, and then the double nut 48 is tightened. By loosening the compression spring 45 to a released state, the side wall 52 is clamped by the restoring force of the compression spring 45 .

Since this fixture 4E is not divided into the inner fixing body 14 and the outer fixing body 15, the number of parts can be reduced. In addition, since the pair of clamping parts 12 and 13 clamp the side wall 52 only with the restoring force of the compression spring 45, the location for clamping the side wall 52 and the location for generating the pinching force are the same. It is located on a straight line. Therefore, it is possible to fix the fixture 4E to the side wall 52 without generating an extra moment.

As described above, preferred embodiments have been described with reference to the drawings, but various additions, changes, or deletions are possible within a range that does not deviate from the spirit of the present invention. Accordingly, the same is included within the scope of the present invention.

1: hydro power plant
2: hydro power plant body
3: support frame
4a, 4b, 4c, 4c, 4e: Fixtures
5: wing car
6: generator
11: frame mount
12, 13: clamping part
50: waterway
52: side wall

Claims (9)

A hydroelectric power generator main body having an impeller that converts hydraulic power into rotational force and a generator that generates power by rotation of the impeller;
a support frame supporting the main body of the hydroelectric power generation device; and
a plurality of fixtures respectively fixing the support frame to the side walls of both sides of the water channel;
including,
Each of the above fixtures,
A frame placing part mounted on the upper surface of the corresponding side wall of the waterway and mounting and fixing the side end of the support frame; and
A pair of clamping parts extending downward from both ends of the frame mounting part and clamping the sidewall by contacting the inner and outer surfaces of the sidewall, respectively,
Each of the above fixtures,
an inner fixture including a first clamping part of the pair of clamping parts, the first clamping part being in contact with the inner surface of the side wall;
an outer fixture including a second clamping part of the pair of clamping parts, the second clamping part being in contact with the outer surface of the side wall; and
A coupling means for coupling the inner fixture and the outer fixture to each other so as to adjust the distance between the first clamping part and the second clamping part,
Interposed between the inner fixture and the outer fixture, a spacer having both ends in direct or indirect contact with the inner fixture and the outer fixture, respectively,
hydro power plant. A hydroelectric power generator main body having an impeller that converts hydraulic power into rotational force and a generator that generates power by rotation of the impeller;
a support frame supporting the main body of the hydroelectric power generation device; and
a plurality of fixtures respectively fixing the support frame to the side walls of both sides of the water channel;
including,
Each of the above fixtures,
A frame placing part mounted on the upper surface of the corresponding side wall of the waterway and mounting and fixing the side end of the support frame; and
A pair of clamping parts extending downward from both ends of the frame mounting part and clamping the sidewall by contacting the inner and outer surfaces of the sidewall, respectively,
Each of the above fixtures,
an inner fixture including a first clamping part of the pair of clamping parts, the first clamping part being in contact with the inner surface of the side wall;
an outer fixture including a second clamping part of the pair of clamping parts, the second clamping part being in contact with the outer surface of the side wall; and
A coupling means for coupling the inner fixture and the outer fixture to each other so as to adjust the distance between the first clamping part and the second clamping part,
Each of the above fixtures,
An intermediate member fixed to either one of the inner fixture and the outer fixture so as to be able to adjust the position of the channel in the width direction is provided, and the intermediate member is provided with respect to the other of the inner fixture and the outer fixture Combined by the coupling means,
hydro power plant. According to claim 1 or 2,
In each fixture,
An elastic body is provided on a contact surface with the side wall in one or both of the first clamping portion and the second clamping portion. According to claim 1 or 2,
In each fixture,
A hydraulic power generating device, wherein a pressing means for pressing at least one of the first clamping portion and the second clamping portion toward the other clamping portion is provided. According to claim 1 or 2,
The hydroelectric power generation device according to claim 1 , wherein the frame mounting portion of each fixture includes a stopper for restricting movement of the side end portion of the mounted support frame in a water flow direction of the water passage. According to claim 1 or 2,
Each of the above fixtures,
and a pressing member capable of pressing a cross section of a side end of the support frame mounted on the frame mounting portion in a channel width direction. delete delete delete