JP6990100B2 - Hydropower equipment and its fixtures - Google Patents

Description

The present invention relates to a hydroelectric power generation device installed in a waterway such as a relatively small river or a waterway, and a fixative for fixing the hydroelectric power generation device to the side wall of the waterway.

When installing a small-scale hydroelectric power generation device in a waterway such as an agricultural waterway or a waterway, 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. Generally, the hydroelectric power generation device is installed after performing foundation work on the waterway itself or around the waterway.

The following patent documents disclose various installation examples of hydroelectric power generation devices.
Patent Document 1 relates to an axial water turbine power generation device that is immersed in running water and generates power by running water. This axial water turbine power generation device includes an outer tubular body that gradually expands in the mainstream direction of running water, and an inner tubular body that is at least partially provided inside the outer tubular body. A runner rotatably provided on the inner cylindrical body is rotated by running water around a rotation axis extending in the mainstream direction. As an installation example, it is described that an installation table is installed on the ground on both sides of a water channel, and an inner cylindrical body is fixed to the installation table via a fixing member.

Patent Document 2 proposes an underwater generator in which a generator is provided inside a support column for supporting the water turbine so that the rotational power of the water turbine is transmitted to the generator via gears or the like. By making the rotation axis of the water turbine a vertical axis, it is not necessary to turn it at a right angle to the direction of the water flow as in the propeller method. Therefore, it can be applied as it is to a tidal current whose flow changes with time. As an installation example, it is described that the pillars are fixed to the bedrock of the river bottom or the seabed and installed directly on the bedrock.

Patent Document 3 relates to a hydroelectric power generation device for the purpose of being easily disposed in a water channel. In this hydroelectric power generation device, a horizontal rotor support housing equipped with a rotor is integrally fixed in the support ring body by holding a holder standing on the upper surface, and at the upper part of the holder projecting upward from the support ring body. Arrange the generator. The support ring is formed with a mounting portion for fixing the rotor support housing to the water channel. As an example of installation in the irrigation canal, it is described that a suspension material is fixed to the attachment portion of the support ring body, and the hydroelectric power generation device is suspended from the beam girder erected in the irrigation canal by the suspension material.

Patent Document 4 relates to a hydroelectric power generation device that is small and convenient to carry. In this hydroelectric power generator, a water wheel is attached to a downward rotating shaft provided on the float, a mooring rope is attached to the float, and a generator rotated by the rotating shaft is provided above the rotating shaft. The angle of the axis of rotation with respect to the float may be variable. This hydroelectric power plant is moored floating in a river, for example, by a float.

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

As in the past, installing a hydroelectric power generation device after performing foundation work requires a large amount of cost for foundation work and installation work. In addition, when installing a hydroelectric power generation device by performing foundation work or installation work, re-construction is required in order to change the installation position of the hydroelectric power generation device after the work. Therefore, once the hydroelectric power generation device is installed, it is practically impossible to change the installation position thereafter. Furthermore, when construction work such as driving anchor bolts into the side wall of the waterway is carried out, there is a concern that the strength of the side wall may decrease. In some cases, such as agricultural canals, additional construction to the canals is not possible.

Patent Document 1 indicates that an installation stand for installing a hydroelectric power generation device is placed on the ground on both sides of a waterway, but there is no specific description of a method for fixing the installation stand. If the installation stand is not fixed, there is a risk that the axial water turbine power generation device will be washed away by water flow or the like. When fixing by driving anchor bolts to the ground, concrete foundation work is required and it is costly.

As in Patent Document 2, installing an underwater generator directly on the bedrock of a river bottom or the seabed requires large-scale construction, and the construction cost tends to be high. In addition, the construction may reduce the strength of the bedrock on the riverbed or seabed, and the installation condition of the underwater generator may become unstable.

Patent Document 3 describes that a hydroelectric power generation device is suspended on a beam girder erected in an irrigation canal, but there is no specific description on a method for fixing the beam girder erected in the irrigation canal. If the beam girder is not fixed, the installation position of the hydroelectric power generation device including the beam girder may move due to water flow or the like, so it is essential to fix the beam girder. For example, when anchor bolts are driven into the irrigation canal to fix the beam girder, the strength of the irrigation canal itself may deteriorate, and there is a concern that the construction cost will increase.

Patent Document 4 describes that a mooring rope is attached to a float, and the hydroelectric power generation device is moored while floating in the flow of a river by the mooring rope. Although the method of fixing the mooring rope to the riverbank or the like is not described, for example, a fixing method such as driving an anchor into the ground around the river can be considered. If the ground around the river is covered with soil or pebbles, construction is not required because the anchors can be easily driven, but there is concern about the strength of the anchors when driving the anchors into the ground made of soil or pebbles. Not suitable for long-term mooring. If the ground around the river is covered with asphalt or concrete, construction will be required to drive the anchor, and there is concern that the construction cost will increase.

An object of the present invention is to provide a hydroelectric power generation device that can be easily and inexpensively installed in a waterway without any construction work on the waterway and its surroundings.
Another object of the present invention is to provide a fixture for a hydroelectric power generation device that can easily and inexpensively fix the hydroelectric power generation device to the side wall of the water channel without damaging the side wall of the water channel.

The hydroelectric power generation device of the present invention includes a hydroelectric power generation device main body having an impeller that converts hydraulic power into rotational force and a generator that generates power by the rotation of the impeller, a support frame that supports the hydroelectric power generation device main body, and the support thereof. It is provided with a plurality of fixtures for fixing the frame to the side walls on both sides of the water channel. Each of the fixtures is mounted on the upper surface of the side wall of the waterway and extends downward from both ends of the frame mounting portion on which the side end portion of the support frame is mounted and fixed, and the inner wall surface of the side wall. It also has a pair of sandwiching portions that abut on the outer wall surface and sandwich the side wall.

According to this configuration, the side end of the support frame is placed and fixed on the frame mounting portion of the fixture, and the fixture is placed on the side wall of the channel by sandwiching the side wall of the channel with a pair of sandwiching portions from both sides. Fix. The side walls are sandwiched by the pair of sandwiching portions by, for example, tightening bolts. When the side end of the support frame is fixed to the side wall of the waterway by this method, it is not necessary to perform foundation work or anchor driving work on the side wall of the waterway and its surroundings. Therefore, the hydroelectric power generation device can be easily and inexpensively installed 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. Further, since the side wall of the water channel is not damaged, the strength of the side wall is not deteriorated.

In the present invention, the fixing tool has an inner fixing body having a sandwiching portion that abuts on the inner wall surface of the side wall, an outer fixing body having a sandwiching portion that abuts on the outer wall surface of the side wall, and the pair of sandwiching portions. It may be composed of the inner fixed body and the connecting means for binding the outer fixed body to each other so that the mutual spacing between the portions can be adjusted. The frame mounting portion may be provided on either one of the inner fixed body and the outer fixed body, or may be provided on both of them.
In the fixture of this configuration, the fixing body having the frame mounting portion of the inner fixing body and the outer fixing body is placed on the upper end surface of the side wall, and the side end portion of the support frame is placed on the frame mounting portion. And fix it. Then, the inner wall surface and the outer surface of the side wall are sandwiched between the sandwiching portions of the inner fixing body and the outer fixing body, and the fixture is fixed to the side wall. Since the fixture is divided into an inner fixing body and an outer fixing body, it is easy to adjust the distance between the pair of sandwiching portions 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 pair of sandwiching portions in each sandwiching portion, each sandwiching portion can have a simple configuration.

When the fixative is divided into an inner fixation body and an outer fixation body, both end faces are directly or indirectly to the inner fixing body and the outer fixing body, respectively, between the inner fixing body and the outer fixing body. There may be a spacer in contact with the body.
With this configuration, the length of the fixative can be easily adjusted to match the width of the upper end of the side wall of the channel by using a spacer of appropriate dimensions.

Further, when the fixing tool is divided into an inner fixing body and an outer fixing body, the fixing tool is attached to either the inner fixing body or the outer fixing body in the width direction of the water channel. It has an intermediate member that is fixed in an adjustable position, and the intermediate member may be coupled to the inner member or the outer fixed body by the coupling means.
With this configuration, the position of the intermediate member in the width direction of the water channel can be appropriately adjusted with respect to one of the fixed bodies, so that the length of the fixture is widened according to the width of the upper end of the side wall of the water channel. It can be easily adjusted in the range.

In the present invention, an elastic body may be provided on the contact surface with the side wall in either one or both of the pair of sandwiching portions.
When an elastic body is provided on the contact surface with the side wall, the side wall is not damaged by sandwiching the side wall with a pair of sandwiching portions, and the contact between the side wall and the sandwiching portion becomes closer, and the contact with the side wall becomes closer. Increases the fixing strength of the fixative.

In the present invention, an urging means may be provided to urge at least one of the pair of sandwiching portions to the side of the other sandwiching portion.
By pressing the pair of sandwiching portions against the inner wall surface and the outer wall surface of the side wall by the urging means, the force of sandwiching the side wall by the pair of sandwiching portions is stabilized, and the fixture can be stably fixed to the side wall. Further, when elastic bodies are provided on the contact surface with the side wall in the sandwiching portion, even if these elastic bodies deteriorate due to wear or the like, the urging means presses the elastic body against the side wall to form a pair of sandwiching portions. Can maintain the pinching force of.

In the present invention, the frame mounting portion of the fixture may have a stopper that restricts the side end portion of the mounted support frame from moving in the water flow direction of the water channel.
When the impeller of the main body of the hydroelectric power generator receives the water flow, a force in the water flow direction acts on the side end of the support frame. However, since the stopper of the frame mounting portion receives the force in the water flow direction acting on the side end portion of the support frame, the side end portion of the support frame is not fixed to the frame mounting portion even if the side end portion of the support frame is not fixed to the frame mounting portion. It does not move in the direction of the water flow. Therefore, it is not necessary to manually support the side end portion of the support frame so that it does not move, and it is easy to fix the side end portion of the support frame to the frame mounting portion.

In the present invention, the fixture may have a pressing member capable of pressing in the waterway width direction against the end surface of the side end portion of the support frame mounted on the frame mounting portion.
Fixtures on both sides of the channel are restrained so that the support frame does not move in the channel width direction by pressing the pressing parts against both ends of the support frame mounted on each frame mounting portion in the opposite directions to each other in the channel width direction. The support frame is positioned in the width direction of the channel.

The fixture for a hydroelectric power generation device according to the present invention includes a hydroelectric power generation device main body 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 that supports the hydroelectric power generation device main body. It is used to secure a hydroelectric generator with a frame to the side wall of a channel. This fixture has an inner fixing body having a sandwiching portion that abuts on the inner wall surface of the side wall, an outer fixing body having a sandwiching portion that abuts on the outer wall surface of the side wall, and a mutual spacing between the pair of sandwiching portions. The inner fixed body and the outer fixed body are configured by a connecting means for binding the inner fixed body to each other, and the inner fixed body and the outer fixed body are placed on one or both of the inner fixed body and the outer surface of the side wall of the water channel. A frame mounting portion is provided to mount and fix the side end portion of the support frame.

In the fixture of this configuration, the fixing body having the frame mounting portion of the inner fixing body and the outer fixing body is placed on the upper end surface of the side wall, and the side end portion of the support frame is placed on the frame mounting portion. And fix it. Then, the inner wall surface and the outer surface of the side wall are sandwiched between the sandwiching portions of the inner fixing body and the outer fixing body, and the fixture is fixed to the side wall. Since the fixture is divided into an inner fixing body and an outer fixing body, it is easy to adjust the distance between the pair of sandwiching portions 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 pair of sandwiching portions in each sandwiching portion, each sandwiching portion can have a simple configuration.

The hydroelectric power generation device of the present invention includes a hydroelectric power generation device main body having an impeller that converts hydraulic power into rotational force and a generator that generates power by the rotation of the impeller, a support frame that supports the hydroelectric power generation device main body, and the support thereof. A frame mounting portion provided with a plurality of fixtures for fixing the frame to the side walls on both sides of the water channel, each of which is mounted on the upper surface of the side wall of the water channel and on which the side end portions of the support frame are mounted and fixed. And, since it has a pair of sandwiching portions that extend downward from both ends of the frame mounting portion and abut on the inner wall surface and the outer wall surface of the side wall to sandwich the side wall, construction work is performed on the waterway and its surroundings. It can be installed easily and inexpensively in the waterway without it.

The fixture for the hydroelectric power generation device of the present invention is a hydroelectric power generation device main body 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 that supports the hydroelectric power generation device main body. It is used to fix a hydroelectric power generator equipped with a It is composed of an outer fixed body and a connecting means for binding the inner fixed body and the outer fixed body to each other so that the mutual spacing between the pair of sandwiching portions can be adjusted, and either the inner fixed body or the outer fixed body. Since one or both are provided with a frame mounting portion that is mounted on the upper surface of the side wall of the water channel and mounts and fixes the side end portion of the support frame, the hydroelectric power generation device can be installed in the water channel without damaging the side wall of the water channel. It can be easily and inexpensively fixed to the side wall of the.

It is a perspective view which shows the installation state of the hydroelectric power generation apparatus which concerns on one Embodiment of this invention. It is a front view of the waterway in which the hydroelectric power generation device is installed as seen from the water flow direction. It is a perspective view of the 1st example of a fixture. (A) is an assembly front view of the first example of the fixture, and (B) is an exploded front view thereof. It is a front view which shows the process 1 of fixing the side end portion of a support frame to the side wall of a water channel using the first example of a fixture. It is a front view which shows the process 2 of fixing the side end portion of a support frame to the side wall of a water channel using the first example of a fixture. FIG. 3 is a front view showing a process 3 of fixing a side end portion of a support frame to a side wall of a water channel using a first example of a fixture. It is a front view which shows the process 4 of fixing the side end portion of a support frame to the side wall of a water channel using the first example of a fixture. It is a front view which shows the process 5 of fixing the side end portion of a support frame to the side wall of a water channel using the first example of a fixture. It is a front view which shows the process 1 of fixing the 2nd example of a fixative to the side wall of a water channel. It is a front view which shows the process 2 of fixing the 2nd example of a fixative to the side wall of a water channel. (A) is a plan view showing process 1 of fixing a third example of a fixative to a side wall of a water channel, and (B) is a front view thereof. (A) is a plan view showing process 2 of fixing a third example of a fixative to a side wall of a water channel, and (B) is a front view thereof. It is a front view of the 4th example of a fixture. It is a front view of the 5th example of a fixture.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an installed 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 generation device is installed as viewed from the water flow direction. This hydroelectric power generation device 1 is installed in a water channel 50 having running water such as a river or an irrigation canal, and generates electricity by the power of the running water. The water channel 50 has a U-shaped cross section including a bottom portion 51 and side walls 52 on both sides. A reinforcing edge 52a overhanging the outside of the water channel 50 is formed at the upper end of the side wall 52. The bottom 51 and the side wall 52 are integrally formed of, for example, concrete.

The hydroelectric power generation device 1 has a plurality of fixings for fixing the hydroelectric power generation device main body 2, the support frame 3 for supporting the hydroelectric power generation device main body 2, and the side ends of the support frame 3 to the side walls 52 on both sides of the water channel 50, respectively. It is equipped with a tool 4A.

The hydroelectric power generation device main body 2 has an impeller 5 provided in a state of being submerged in running water, and a generator 6 provided above the running water. In response to the water flow, the impeller 5 converts hydraulic power into rotational force, and the rotation of the impeller 5 causes the generator 6 to generate electricity. The impeller 5 in the example of the figure is a propeller type in which the rotation axis L is parallel to the water flow direction. The impeller 5 has a hub 5a provided on the rotation axis L, and a plurality of (for example, five) blades 5b extending radially outward from the outer peripheral surface of the hub 5a.

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 gearbox 7. The gearbox 7 is supported by the lower end of the support cylinder 8 extending downward from the bottom surface of the generator 6. A power transmission shaft (not shown) is provided in the support cylinder 8. The blade shaft and the power transmission shaft are connected so as to be able to transmit power via a gear mechanism (not shown) in the gear box 7. The gear mechanism consists of, for example, a combination of bevel gears, and accelerates and transmits rotational power from the blade shaft to the power transmission shaft. The rotation of the impeller 5 is transmitted to the generator 6 via these blade shafts, gear mechanisms, and power transmission shafts.

The support frame 3 is composed of two beams 10 each spanning between the side walls 52 on both sides of the water channel 50. The beams 10 are arranged apart from each other in the water flow direction. Then, by supporting both ends of the generator 6 in the water flow direction with these two beams 10, the hydroelectric power generation device main body 2 is supported.

[First example of fixture]
As shown in FIGS. 3 and 4, the fixture 4A includes a frame mounting portion 11 mounted on the upper surface of the side wall 52 (FIGS. 1 and 2) of the water channel 50 (FIGS. 1 and 2) in the used state. It has a pair of sandwiching portions 12 and 13 extending downward from both ends of the frame mounting portion 11 and abutting on the inner wall surface and the outer wall surface of the side wall 52, respectively. In the case of this embodiment, the fixture 4A is divided into an inner fixing body 14 and an outer fixing body 15, so that the inner fixing body 14 and the outer fixing body 15 are detachably connected to each other by the connecting means 16. It has become. The inner fixed body 14 is integrally formed with a frame mounting portion 11 and a sandwiching portion 12 that comes into contact with the inner wall surface of the side wall 52. The outer fixed body 15 includes a sandwiching portion 13 that comes into contact with the outer wall surface of the side wall 52.

The frame mounting portion 11 of the inner fixing body 14 is a bottom plate 11a on which the end portion of the beam 10 (FIGS. 1 and 2) is mounted, and two plate-shaped stoppers rising upward from both end edges in the front-rear direction of the bottom plate 11a. It consists of 11b. Each stopper 11b rises from the entire area in the inside / outside direction of the bottom plate 11a. Here, the front-rear direction refers to the water flow direction at the time of installation of the hydroelectric power generation device 1. Further, the inside / outside direction refers to the width direction of the water channel at the time of installation of the hydroelectric power generation device 1, and the side closer to and inside the water channel 50 (FIGS. 1 and 2) and the side far from the channel 50 are outside. The end of the beam 10 corresponds to the "side end of the support frame" in the claim.

Further, the frame mounting portion 11 is provided with a positioning member 18 for determining the position of the end portion of the beam 10 on the bottom plate 11a in the internal and external directions. The positioning member 18 has a thin plate shape in the inward and outward directions, and is provided with a plurality of screw holes 19 penetrating in the inward and outward directions. 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 internal and external directions is changed according to the length of the side end portion of the beam 10 mounted on the frame mounting portion 11.

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

The sandwiching portion 12 of the inner fixing body 14 has a side wall contact portion 12a extending downward along the width direction from the inner end portion of the frame mounting portion 11 and front and rear 2 extending inward from both ends of the side wall contact portion 12a. It is composed of two reinforcing portions 12b. The upper end of the reinforcing portion 12b is connected to the stopper 11b. An elastic body 27 made of the same rubber material as described above is provided on the outer surface of the side wall contact portion 12a which is the contact surface with the side wall 52.

The outer fixed body 15 is L-shaped when viewed from the front, and a portion along the front-rear direction thereof is a sandwiching portion 13 that is in contact with the outer wall surface of the side wall 52. The sandwiching portion 13 is provided with a coupling bolt hole 28 (FIG. 4) at a position corresponding to the coupling bolt hole 24 of the coupling member 21. An elastic body 29 made of the same rubber material or the like is provided on the inner side surface of the sandwiching portion 13 which is the contact surface with the side wall 52.

The coupling means 16 includes a bolt 31 inserted into each of the coupling bolt holes 24 and 28 of the coupling member 21 and the sandwiching portion 13, a nut 32 screwed into the bolt 31, and the like.

[Installation of hydroelectric power generation equipment]
When the hydroelectric power generation device 1 is installed in the water channel 50, both ends of the two beams 10 of the support frame 3 are fixed to the side walls 52 on both sides of the water channel 50 by using the fixtures 4A, respectively. Hereinafter, the fixing method will be described.

First, as shown in FIG. 5, the inner fixing body 14 is placed on the upper end surface of the side wall 52 so that the sandwiching portion 12 is located inside the side wall 52. The inner fixed body 14 contacts the upper end surface of the side wall 52 via the elastic body 26. Then, the outer fixing body 15 is arranged on the outer side of the side wall 52, and the bolt 31 inserted into the connecting bolt holes 24 and 28 of the inner fixing body 14 and the outer fixing body 15, the nut 32 screwed to the bolt 31, and the like are used. , As shown in FIG. 6, the inner fixed body 14 and the outer fixed body 15 are coupled. By further tightening the bolt 31 from this state, the inner wall surface and the outer surface of the side wall 52 are sandwiched between the sandwiching portions 12 and 13 of the inner fixing body 14 and the outer fixing body 15, and the fixture 4A is fixed to the side wall 52. do.

In the fixed state of the fixture 4A, elastic bodies 26, 27, and 29 are provided on 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 of the sandwiching portions 12 and 13, respectively. Therefore, the side wall 52 is not damaged. Further, the contact between the side wall 52 and the sandwiching portions 12 and 13 becomes closer, and the fixing strength of the fixture 4 to the side wall 52 increases.

Next, as shown in FIG. 7, the end portion of the beam 10 is placed on the bottom plate 11a of the frame mounting portion 11, and the pressing component 34 is inserted between the end surface of the beam 10 and the positioning member 18. The pressing component 34 is a plate-shaped component having substantially the same size as the end face of the beam 10. Then, as shown in FIG. 8, the end portion of the beam 10 is fixed to the fixture 4A.

To fix the end of the beam 10, the fixing bolt 35 is attached to the fixing bolt hole 20 of one stopper 11b, the elongated hole 36 provided at the end of the beam 10 (see FIG. 7), and the other stopper 11b. This is done by inserting the fixing bolt holes 20 in this order and screwing a nut (not shown) to the protruding end of the fixing bolt 35. The elongated hole 36 of the beam 10 penetrates in the width direction of the beam 10 and is long in the length direction of the beam 10. Such fixing with the fixing bolts 35 is performed for the plurality of fixing bolt holes 20. In the example of FIG. 8, two of the three fixing bolt holes 20 are used for the fixing bolt holes 20.

Since the frame mounting portion 11 has the stopper 11b, the work of fixing the end portion of the beam 10 to the frame mounting portion 11 can be easily performed. That is, during the installation work, the impeller 5 receives the water flow, and the force in the water flow direction acts on the beam 10 of the support frame 3. However, since the stopper 11b on the downstream side receives the force acting on the end of the beam 10 in the water flow direction, the beam 10 does not move in the water flow direction even if the beam 10 is not fixed to the frame mounting portion 11. Therefore, it is not necessary to manually support the beam 10 so that it does not move, and the work of fixing the end portion of the beam 10 to the frame mounting portion 11 can be easily performed. Since the stoppers 11b are provided on both sides of the bottom plate 11a of the frame mounting portion 11, the stopper 11b can receive the force in the water flow direction acting on the beam 10 regardless of the direction of the water flow.

After fixing the end of the beam 10 to the fixture 4A, as shown in FIG. 9, a pressing member 37 made of a bolt is screwed into the screw hole 19 (see FIG. 3) of the positioning member 18 via the pressing component 34. The tip of the pressing member 37 is pressed against the end surface of the beam 10. By changing the screwing amount of the pressing member 37, the position of the end face of the beam 10 in the inward and outward directions is adjusted. By pressing the pressing member 37 against both end faces of the beam 10 with respect to the fixtures 4A on both sides of the water channel 30, the beam 10 is restrained so as not to move inward and outward, and the beam 10 is positioned in the water channel width direction. Will be done. After positioning once, it is also possible to adjust the position of the beam 10 in the width direction of the water channel. As the pressing member 37, the pressing component 34 may be pressed against the end face of the beam 10 by using a spring or the like instead of a bolt.

In this way, the end portion of the beam 10 is placed and fixed on the frame mounting portion 11 of the fixture 4A, and the fixture 4A is sandwiched between the pair of sandwiching portions 12 and 13 from both sides of the side wall 52 of the water channel 50. It is fixed to the side wall 52. The position of the beam 10 in the water flow direction is determined by the stopper 11b, and the position in the water channel width direction is determined by the pressing member 37. As a result, the position of the hydroelectric power generation device main body 2 in the water flow direction and the position in the water channel width direction are determined.

When the end portion of the beam 10 is fixed to the side wall 52 of the water channel 50 by this method, it is not necessary to perform foundation work or anchor driving work on the side wall 52 and its surroundings. Therefore, the hydroelectric power generation device 1 can be easily and inexpensively installed in the water channel 50 without damaging the side wall 52. In addition, it is easy to change the installation position of the hydroelectric power generation device 1. Further, since the side wall 52 of the water channel 50 is not damaged, the strength of the side wall 52 does not deteriorate.

Since the fixture 4A is divided into the inner fixing body 14 and the outer fixing body 15, the distance between the pair of sandwiching portions 12 and 13 can be easily adjusted according to the width of the upper end of the side wall 52. Further, since the mechanism for adjusting the distance between the pair of sandwiching portions 12 and 13 does not have to be provided in each sandwiching portion 12 and 13, each sandwiching portion 12 and 13 can have a simple configuration.

[Second example of fixture]
10 and 11 show a second example of the fixative. The fixture 4B is interposed between the inner fixing body 14 and the outer fixing body 15. The spacer 40 has a block shape in which both end surfaces are in contact with the inner fixed body 14 and the outer fixed body 15, respectively, and has a connecting bolt hole 41 penetrating in the inner and outer directions. Others are the same as the first example.

The fixture 4B is provided with a bolt 31 inserted into each of the connecting bolt holes 24, 41, 28 of the fixing member 14, the spacer 40, and the outer fixing body 15, a nut 32 screwed to the bolt 31, and the like. The inner fixed body 14 and the outer fixed body 15 are connected to each other via the spacer 40. By interposing the spacer 40 between the inner fixed body 14 and the outer fixed body 15 in this way, the width of the upper end of the side wall 52 is wide, and the inner and outer fixed bodies 14 and the outer fixed body 15 alone lack the dimensions in the inner and outer directions. In some cases, the length of the fixative 4B can be easily adjusted. Even when changing the installation position of the hydroelectric power generation device 1 or installing the hydroelectric power generation device 1 in another waterway, the dimensions in the inward and outward directions according to the width of the upper end of the side wall of the waterway are adjusted. It can be dealt with by manufacturing the spacer 40 to be held and preparing a bolt 31 having a length corresponding to the seat 40.

[Third example of fixture]
12 and 13 show a third example of the fixative. The fixture 4C has an intermediate member 42 whose position can be adjusted inward and outward with respect to the inner fixing body 14 instead of the coupling member 21 in the first example. The intermediate member 42 is provided with a long hole 43 long in the inner and outer directions, and the bolt 22 inserted into the long hole 43 and the bolt hole (not shown) provided in the stopper 11b of the inner fixing body 14, and this bolt. The intermediate member 42 is fixed to the inner fixing body 14 by the nut 23 or the like screwed to the 22. By changing the insertion position of the bolt 22 in the elongated hole 43, the position of the intermediate member 42 in the inner and outer directions can be adjusted. Similar to the coupling member 21, the intermediate member 42 is also coupled to the outer fixing body 15 by the coupling means 16 including the bolt 31, the nut 32, etc. at the portion 42a protruding outward in the front-rear direction from the stopper 11b.
Others are the same as the first example.

According to this configuration, the position of the intermediate member 42 in the inner and outer directions with respect to the inner fixing body 14 can be adjusted to adjust the effective length of the fixture 4C, that is, the distance between the pair of sandwiching portions 12, 13. .. FIG. 12 shows the state where the effective length of the fixture 4C is the shortest, and FIG. 13 shows the state where the effective length of the fixture 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 water channel 50. .. Further, it is not necessary to prepare the bolt 31 and the nut 32 according to the width of the upper end of the side wall 52 as in the case of using the spacer 40 of the second example.

[Fourth example of fixture]
FIG. 14 shows a fourth example of a fixture. This fixture 4D has a different outer fixture 15 from the fixtures 4A, 4B, 4C of the first to third examples. That is, in the outer fixing body 15 of the fixture 4D, the elastic body 29 is urged inward by the urging means with respect to the outer fixed body main body 15a having an L-shape in front view. In this case, the elastic body 29 becomes the sandwiching portion 13 of the outer fixed body 15. In other words, the sandwiching portion 13 of the outer fixed body 15 is urged to the side of the sandwiching portion 12 of the inner fixed body 14 by the urging means.

In the example shown in the figure, the urging means comprises a compression spring 45. Specifically, the guide rod 46 fixed to the elastic body 29 is inserted into a through hole (not shown) provided in the outer fixed body main body 15a so as to be able to move forward and backward in the inward and outward directions. The compression spring 45 made of a coil spring is provided on the outer periphery of the guide shaft 46 and between the elastic body 29 and the outer fixed body main body 15a. A double nut 48 for preventing disconnection is screwed to a threaded portion provided at the tip of the guide shaft 46. The urging means may be something other than the compression spring 45.
Others are the same as 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 sandwiching portion 13 is pressed against the outer wall surface of the side wall 52 by the restoring force of the compression spring 45 which is the urging means. .. As a result, the sandwiching portion 12 of the inner fixing body 14 is also pressed against the inner wall surface of the side wall 52, and the side wall 52 is sandwiched from both sides by both sandwiching portions 12 and 13.

In this way, by pressing the pair of sandwiching portions 12 and 13 against the inner wall surface and the outer wall surface of the side wall 52 by the compression spring 45, the force of sandwiching the side wall 52 by the pair of sandwiching portions 12 and 13 is stabilized, and the fixture is fixed. The 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 sandwiching force of the pair of sandwiching portions 12 and 13 does not exceed the restoring force of the compression spring 45 at the time of maximum compression. Therefore, the side wall 52 or the fixture 4D itself is not damaged by the too strong pinching force. Further, even when the elastic bodies 27 and 29 of the sandwiching portions 12 and 13 deteriorate due to wear or the like, the restoring force of the compression spring 45 can maintain the force for sandwiching the side wall 52.

In each of the fixtures 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 provided on the outer fixing body 15. You may. Further, 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]
FIG. 15 shows a fifth example of a fixture. The fixative 4E is not divided into an inner fixing body 14 and an outer fixing body 15 like the fixing tools 4A, 4B, 4C, and 4D. On the other hand (for example, the inner side), the sandwiching portion 12 extends downward from one end of the frame mounting portion 11 like the fixtures 4A, 4B, 4C, and 4D, and the elastic body 27 is provided on the contact surface with the side wall 52 thereof. Has been done. On the other hand, the other (for example, the outer) sandwiching portion 13 is a urging means for the hanging portion 49 extending downward from the other end of the frame mounting portion 11, but the sandwiching portion 13 is provided with a compression spring 45. It is urged to the side (inside) of twelve. The sandwiching portion 13 is made of an elastic body. The configuration of the compression spring 45 and its peripheral portion is the same as that of the fourth example.

The width of the upper end of the fixture 4E is wider than the distance A between the sandwiching portion 12 and the sandwiching portion 13 when the compression spring 45 has a natural length, that is, when no external force is applied to the compression spring 45. It can be fixed to the side wall 52. With the double nut 48 tightened to shorten the length of the compression spring 45, the side wall 52 is sandwiched by the pair of sandwiching portions 12 and 13, and then the double nut 48 is loosened to release the compression spring 45. , The side wall 52 is sandwiched by the restoring force of the compression spring 45.

Since the fixture 4E is not divided into the inner fixing body 14 and the outer fixing body 15, the number of parts can be reduced. Further, since the pair of sandwiching portions 12 and 13 sandwich the side wall 52 only by the restoring force of the compression spring 45, the portion where the side wall 52 is sandwiched and the portion where the sandwiching force is generated are located on the same straight line. Therefore, the fixture 4E can be fixed to the side wall 52 without generating an extra moment.

Although the embodiments for carrying out the present invention have been described above based on the examples, the embodiments disclosed here are exemplary in all respects and are not limiting. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 ... Hydroelectric power generation device 2 ... Hydroelectric power generation device main body 3 ... Support frame 4A, 4B, 4C, 4D, 4E ... Fixture 5 ... Impeller 6 ... Generator 11 ... Frame mounting part 11b ... Stopper 12, 13 ... Insertion part 14 ... Inner fixing body 15 ... Outer fixing body 16 ... Coupling means 18 ... Positioning members 26, 27, 29 ... Elastic body 37 ... Pushing member 40 ... Spacing member 42 ... Intermediate member 45 ... Compression spring (urging means)
50 ... Waterway 52 ... Side wall

Claims (4)

A hydroelectric power generation device main body having an impeller that converts hydraulic power into rotational force and a generator that generates electricity by the rotation of the impeller, a support frame that supports the hydroelectric power generation device body, and the support frames on the side walls on both sides of the waterway. Equipped with multiple fixtures to fix each,
Each of the fixtures is mounted on the upper surface of the side wall of the waterway and extends downward from both ends of the frame mounting portion on which the side end portion of the support frame is mounted and fixed, and the inner wall surface of the side wall. It also has a pair of sandwiching portions that abut on the outer wall surface and sandwich the side wall.
Mutual spacing between the pair of sandwiches, the inner fixing body having the sandwiching portion in which the fixture abuts on the inner wall surface of the side wall, the outer fixing body having the sandwiching portion in contact with the outer wall surface of the side wall, and the sandwiching portion. Consists of an inner fixation body and a coupling means for binding the outer fixation body to each other in an adjustable manner.
A hydroelectric power generation device in which a spacer is interposed between the inner fixed body and the outer fixed body so that both end surfaces are in direct or indirect contact with the inner fixed body and the outer fixed body, respectively. A hydroelectric power generation device main body having an impeller that converts hydraulic power into rotational force and a generator that generates electricity by the rotation of the impeller, a support frame that supports the hydroelectric power generation device body, and the support frames on the side walls on both sides of the waterway. Equipped with multiple fixtures to fix each,
Each of the fixtures is mounted on the upper surface of the side wall of the waterway and extends downward from both ends of the frame mounting portion on which the side end portion of the support frame is mounted and fixed, and the inner wall surface of the side wall. It also has a pair of sandwiching portions that abut on the outer wall surface and sandwich the side wall.
Mutual spacing between the pair of sandwiches, the inner fixing body having the sandwiching portion in which the fixture abuts on the inner wall surface of the side wall, the outer fixing body having the sandwiching portion in contact with the outer wall surface of the side wall, and the sandwiching portion. Consists of an inner fixation body and a coupling means for binding the outer fixation body to each other in an adjustable manner.
The fixative has an intermediate member that is adjustablely fixed to the fixation body of either the inner fixation body or the outer fixation body so that the position in the width direction of the water channel can be adjusted, and the intermediate member is the inner side. A hydroelectric power generation device that is coupled to a member of either a fixed body or the outer fixed body by the coupling means. The hydroelectric power generation device according to claim 1 or 2 , is provided with an urging means for urging at least one of the pair of sandwiching portions to the side of the other sandwiching portion. Hydroelectric power generation equipment. In the hydroelectric power generation device according to any one of claims 1 to 3 , the fixture presses the fixture against the end surface of the side end portion of the support frame mounted on the frame mounting portion in the waterway width direction. A hydroelectric power generator with a press member capable of.

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