WO2019117115A1

WO2019117115A1 - Hydraulic power generating device and fixing implements for same

Info

Publication number: WO2019117115A1
Application number: PCT/JP2018/045402
Authority: WO
Inventors: 浩氣向井; 智哉川合
Original assignee: Ntn株式会社
Priority date: 2017-12-13
Filing date: 2018-12-11
Publication date: 2019-06-20
Also published as: KR20200093659A; KR102567836B1; JP6990100B2; JP2019105218A

Abstract

Provided is a hydraulic power generating device that can be installed easily and inexpensively on a water channel without requiring construction work with respect to the water channel or surroundings of the water channel. A hydraulic power generating device (1) comprises: a hydraulic power generating device main unit (2) having an impeller (5) and an electric generator (6); a support frame (3) that supports the hydraulic power generating device main unit (2); and a plurality of fixing implements (4A) that fix the support frame (3) to side walls (52) on both sides of the water channel (50). Each of the fixing implements (4A) has a frame placing part (11) that is arranged on an upper surface of the corresponding side wall (52) of the water channel (50), and a pair of clamping parts (12, 13) that extend downward from both ends of the frame placing part (11). When the hydraulic power generating device (1) is installed on the water channel (50), lateral ends of the support frame (3) are placed on the frame placing parts (11) and fixed thereto. Then, the fixing implements (4A) are fixed to the side walls (52) by clamping the inner surface and the outer surface of each of the side walls (52) with the pairs of clamping parts (12, 13).

Description

HYDRO POWER GENERATOR AND FIXING DEVICE

Related application

This application claims the priority of Japanese Patent Application No. 2017-238264 filed on Dec. 13, 2017, which is incorporated by reference in its entirety.

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a hydroelectric generator installed in a relatively small river or water channel such as a canal, and a fixture for fixing the hydroelectric power generator to the side wall of the channel.

When installing a small-scale hydroelectric generator in a water channel such as an agricultural water channel or a water channel, it is necessary to fix so that the installation position of the hydraulic power device does not move due to water flow or the like. Generally, foundation work is carried out on the channel itself or around the channel before installing the hydroelectric system.

The following patent documents disclose various installation examples of a hydroelectric generator.
Patent Document 1 relates to an axial-flow water turbine power generator which is immersed in flowing water and generates electric power by flowing water. The axial-flow water turbine power generator includes an outer cylindrical body gradually expanding in the main flow direction of the flowing water, and an inner cylindrical body at least a part of which is provided inside the outer cylindrical body. A runner rotatably provided on the inner cylindrical body is rotated by flowing water around a rotation axis extending in the main flow direction. Patent Document 1 describes, as an example of installation, installing an installation stand on the ground on both sides of a water channel and fixing the inner cylindrical body to the installation stand via a fixing member.

Patent Document 2 proposes an underwater generator in which a generator is provided inside a support for supporting a water wheel, and the rotational power of the water wheel is transmitted to the generator via a gear or the like. By setting the rotation axis of the water wheel as a vertical axis, it is not necessary to turn it at right angles to the direction of water flow as in a propeller system. Therefore, the present invention can be applied as it is to a tidal current whose flow changes with time. Patent Document 2 describes that, as an example of installation, a column is 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 intended to be easily disposed in a water channel. In this hydroelectric power generation apparatus, a horizontal rotor support housing provided with a rotor is integrally fixed in the support ring with a holder standing on the upper surface, and on the upper part of the holder projecting upward from the support ring. Install a generator. The support ring is formed with a mounting portion for fixing the rotor support housing to the water channel. Patent Document 3 describes that, as an example of installation in a water channel, a suspension material is fixed to the mounting portion of the support ring, and the hydraulic power generation device is suspended by a beam girder installed in the water channel by this suspension material. It is done.

Patent Document 4 relates to a hydraulic power generation device which is compact and convenient to carry. In this hydroelectric power generation apparatus, a water wheel is attached to a downward rotating shaft provided on a float, a mooring cord is attached to the float, and a generator rotated by the rotating shaft is provided on the upper part of the rotating shaft. The angle of the rotation axis with respect to the float may be variable. This hydroelectric generator is moored in a floating state by a float, for example.

JP 2014-145347 A JP, 2009-36113, A JP, 2017-150376, A JP, 2001-289145, A

As in the past, installing a hydroelectric power generator after foundation work is expensive for foundation work and installation work. In addition, when performing a foundation work or installation work to install a hydroelectric power generation apparatus, another work is required to change the installation position of the hydroelectric power generation apparatus after the construction. For this reason, once the hydroelectric generator is installed, subsequent change of the installation position is substantially impossible. Furthermore, when work such as driving anchor bolts into the side wall of the water channel is performed, the strength of the side wall may be reduced. In agricultural waterways, additional work to waterways may not be possible.

Although patent document 1 shows placing the installation stand for a hydraulic power unit installation on the ground by the side of a waterway, it does not have a concrete description about the fixing method of an installation stand. If the installation stand is not fixed, there is a possibility that the axial-flow water turbine generator is allowed to flow due to water flow or the like. In the case of fixing by anchor bolt driving to the ground, concrete foundation work is required, which is expensive.

As described in Patent Document 2, installing the underwater generator directly on the bottom of the river or the bottom of the seabed requires a large-scale construction, and the construction cost tends to be high. In addition, there is a risk that the strength of the riverbed and the bottom of the seabed may be reduced by the construction, and the installation state of the underwater generator may be unstable.

Although Patent Document 3 describes that a hydroelectric power generation apparatus is suspended on a beam girder set up in a canal, there is no specific description on a method of fixing the beam girder set up in the canal. If the beam girder is not fixed, fixing of the beam girder is essential because the installation position of the hydroelectric generator including the beam girder may move due to water flow or the like. For example, when anchor bolts are driven into the water channel for fixing the beam girder, the water channel itself may be deteriorated in strength, and there is a concern that the construction cost may be increased.

Patent Document 4 describes that a mooring cord is attached to a float, and the mooring cord moors a hydroelectric power generation device in a floating state of the river flow. Although a method for fixing mooring cords to a riverbank or the like is not described, for example, a fixing method may be considered such as driving an anchor into the ground around a river. If the ground around the river is covered with soil or pebbles, there is no need for construction since the anchors can be easily driven, but there is concern about the strength when driving the anchors onto the soil or pebble ground. It is not suitable for long-term mooring. If the ground around the river is covered with asphalt or concrete, work is required to drive the anchor, which may increase construction costs.

An object of the present invention is to provide a hydroelectric generator that can be installed easily and inexpensively in a water channel without requiring any work on the water channel and its surroundings.

The hydroelectric generator according to the present invention comprises: an impeller for converting hydraulic power into rotational power; a hydroelectric generator main body having a generator generating electricity by rotation of the impeller; a support frame for supporting the hydroelectric generator main body; And a plurality of fasteners for securing the frame to side walls on both sides of the water channel. The fixtures are mounted on the upper surface of the corresponding side wall of the water channel and extend downward from the frame mounting portion for mounting and fixing the side end of the support frame, and extending from both ends of the frame mounting portion. It has a pair of sandwiching parts which abut on the inner side and the outer side and sandwich the side wall.

According to this configuration, the side end of the support frame is placed on the frame mounting portion of the fixture, and the fixture is fixed to the side wall of the water passage by sandwiching the side wall of the water passage with the pair of sandwiching portions from both sides. The sandwiching of the side wall by the pair of sandwiching portions is performed, for example, by tightening a bolt. When the side end portion of the support frame is fixed to the side wall of the water channel in this way, it is not necessary to carry out work such as foundation work and anchor driving on the side wall of the water channel and its periphery. For this reason, the hydraulic power unit can be simply and inexpensively installed in the water channel without damaging the side wall of the water channel. In addition, it is easy to change the installation position of the hydroelectric generator. Furthermore, since the side wall of the water channel is not damaged, the strength deterioration of the side wall does not occur.

Each of the fixing members is a first sandwiching portion of the pair of sandwiching portions, and an inner fixed body having a first sandwiching portion that abuts on the inner side surface of the side wall; An outer fixed body having a second pinching portion which is a second pinching portion of the pinching portions, the second pinching portion being in contact with the outer surface of the side wall, and an interval between the first and second pinching portions; It is possible to adjustably couple the inner fixed body and the outer fixed body to each other. 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.

In the fixture of this configuration, the fixed body having the frame mounting portion of the inner fixed body and the outer fixed body is placed on the upper end surface of the side wall, and the side end of the support frame is placed on the frame mounted portion Fix it. Then, the fixing member is fixed to the side wall by sandwiching the inner side surface and the outer side surface of the side wall with the holding portion of the inner fixing body and the holding portion of the outer fixing body. Since the fixture is divided into the inner fixed body and the outer fixed body, the distance between the two sandwiching portions can be easily adjusted in accordance with the width of the upper end of the side wall. Moreover, since it is not necessary to provide a mechanism for adjusting the distance between the two sandwiching portions in any of the sandwiching portions, each sandwiching portion can have a simple configuration.

When each fixture is divided into an inner fixed body and an outer fixed body, both end faces directly or indirectly to the inner fixed body and the outer fixed body, respectively, between the inner fixed body and the outer fixed body. There may be an intervening spacer. According to this configuration, it is possible to easily adjust the length of the fastener to the width of the upper end of the side wall of the water channel by using the appropriate size spacer.

Alternatively, when each fixture is divided into an inner fixed body and an outer fixed body, the fixed fixture is positioned in the width direction of the water channel in either one of the inner fixed body and the outer fixed body. The intermediate member may be adjustably fixed, and the intermediate member may be coupled to the other of the inner fixed body and the outer fixed body by the coupling means. According to this configuration, by appropriately adjusting the position in the width direction of the water passage of the intermediate member with respect to one of the fixed members, the length of the fixing member can be increased according to the width of the upper end of the side wall of the water passage. The range can be easily adjusted.

In each of the fixing devices, an elastic body may be provided on the contact surface with the side wall in one or both of the first and second sandwiching portions. When the elastic body is provided on the contact surface with the side wall, the side wall is not damaged by sandwiching the side wall with the pair of sandwiching portions, and the contact between the side wall and the sandwiching portion becomes tighter The fixing strength of the fixture is increased.

Each fixing tool may be provided with biasing means for biasing at least one of the first and second pinching portions toward the other pinching portion. . By pressing the two sandwiching portions against the inner side surface and the outer side surface of the side wall by the biasing means, the force of sandwiching the side wall between the pair of sandwiching portions is stabilized, and the fixing tool can be stably fixed to the side wall. In addition, when elastic bodies are provided on the contact surfaces with the side walls in the sandwiching portion, even if the elastic bodies deteriorate due to wear or the like, the biasing means presses the elastic bodies against the side walls to form a pair of sandwiching portions Can hold the interposing force of

The frame mounting portion of each of the fixtures may have a stopper that restricts the movement of the side end of the supporting frame mounted thereon in the water flow direction of the water channel. When the impeller of the hydroelectric generator body 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 of the support frame, the side end of the support frame is not fixed even if the side end of the support frame is not fixed to the frame mounting portion. It does not move in the water flow direction. Therefore, it is not necessary to manually hold the side end of the support frame 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 in the water channel width direction against the end face of the side end of the support frame placed on the frame placement part. Restraints the support frame not to move in the channel width direction by pressing the pressing parts against the both ends of the channel on the both sides of the channel by pressing the pressing parts against the both end faces of the support frame placed on each frame support And the support frame is positioned in the channel width direction.

A fixture for a hydroelectric generator according to the present invention includes: a hydroelectric generator main body having an impeller for converting hydraulic power to rotational power; and a generator generating electricity by rotation of the impeller; and a support for supporting the hydroelectric generator main body It is comprised so that a hydraulic power unit provided with a flame | frame may be fixed to the side wall of a water channel. The fixing device includes an inner fixing body having a first sandwiching portion abutting on an inner side surface of the side wall, an outer fixing body having a second sandwiching portion abutting on an outer side surface of the side wall, and the first fixing means. And coupling means for interconnecting the inner fixed body and the outer fixed body so as to adjust an interval between the first and second sandwiching portions, and one or both of the inner fixed body and the outer fixed body, A frame mounting portion is provided which is mounted on the upper surface of the side wall of the water channel and mounts and fixes the side end of the support frame.

In the fixture of this configuration, the fixed body having the frame mounting portion of the inner fixed body and the outer fixed body is placed on the upper end surface of the side wall, and the side end of the support frame is placed on the frame mounted portion Fix it. Then, the fixing member is fixed to the side wall by sandwiching the inner side surface and the outer side surface of the side wall with the respective inserting portions of the inner fixing body and the outer fixing body. Since the fixture is divided into the inner fixed body and the outer fixed body, the distance between the two sandwiching portions can be easily adjusted in accordance with the width of the upper end of the side wall. Moreover, since it is not necessary to provide a mechanism for adjusting the distance between the two sandwiching parts in each sandwiching part, each sandwiching part can be made into a simple configuration.

Any combination of the at least two configurations disclosed in the claims and / or the description and / or the drawings is included in the present invention. In particular, any combination of two or more of the claims is included in the present invention.

The invention will be more clearly understood from the following description of the preferred embodiments with reference to the accompanying drawings. However, the embodiments and the drawings are for the purpose of illustration and description only and are not to be taken as limiting the scope of the present invention. The scope of the invention is defined by the appended claims. In the accompanying drawings, the same reference numerals in multiple drawings indicate the same or corresponding parts.
It is a perspective view which shows the installation state of the hydraulic power unit concerning one Embodiment of this invention. It is the front view which looked at the water channel where the hydraulic power unit of Drawing 1 was installed from the direction of water flow. It is a perspective view of the 1st example of the fixing tool which fixes the hydraulic power unit of FIG. It is an assembly front view of the 1st example of the fixing tool of FIG. It is a disassembled front view of the fixing tool of FIG. 4A. It is a front view which shows the 1st process of fixing the side end part of a support frame to the side wall of a water channel using the 1st example of the fixing tool of FIG. It is a front view which shows the 2nd process of fixing the side end part of a support frame to the side wall of a water channel using the 1st example of the fixing tool of FIG. It is a front view which shows the 3rd process of fixing the side end part of a support frame to the side wall of a water channel using the 1st example of the fixing tool of FIG. It is a front view which shows the 4th process of fixing the side end part of a support frame to the side wall of a water channel using the 1st example of the fixing tool of FIG. It is a front view which shows the 5th process of fixing the side end part of a support frame to the side wall of a water channel using the 1st example of the fixing tool of FIG. It is a front view which shows the 1st process of fixing the 2nd example of a fixing tool to the side wall of a channel. It is a front view which shows the 2nd process of fixing the 2nd example of a fixing tool to the side wall of a channel. It is a top view which shows the 1st process of fixing the 3rd example of a fixing tool to the side wall of a channel. It is a front view corresponding to Drawing 12A. It is a top view which shows the 2nd process of fixing the 3rd example of a fixing tool to the side wall of a channel. It is a front view corresponding to FIG. 13A. It is a front view of the 4th example of a fixing tool. It is a front view of the 5th example of a fixing tool.

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an installation state of a hydroelectric generator according to an embodiment of the present invention, and FIG. 2 is a front view of a water channel in which the hydroelectric generator is installed as viewed from the water flow direction. The hydroelectric generator 1 is installed, for example, in a water channel 50 having flowing water, such as a river or a canal, and generates electric power by the force of the flowing water. The water channel 50 is U-shaped in cross section which comprises a bottom 51 and

side walls

52, 52 on both sides. At the upper end of each side wall 52, a reinforcing edge 52a that protrudes to the outside of the water channel 50 is formed. The bottom 51 and the

side walls

52, 52 are integrally formed of, for example, concrete.

The hydroelectric generator 1 includes a hydroelectric generator body 2, a support frame 3 for supporting the hydroelectric generator body 2, and a plurality of side ends of the support frame 3 fixed to corresponding side walls 52 of the water channel 50. And a fixture 4A.

The hydroelectric power generation apparatus main body 2 includes an impeller 5 which is submerged in flowing water at the time of installation, and a generator 6 located above the flowing water at the time of installation. In response to the water flow, the impeller 5 converts the hydraulic power into a rotational force, and the rotation of the impeller 5 causes the generator 6 to generate power. The impeller 5 in the illustrated example 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 at the rotation axis L and a plurality of (for example, five) blades 5b radially extending outward in the radial direction 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 gear box 7 is supported at 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 provided in the support cylinder 8. The blade shaft and the power transmission shaft are connected to be able to transmit power via a gear mechanism (not shown) in the gearbox 7. The gear mechanism is, 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 the blade shaft, the gear mechanism, and the power transmission shaft.

The support frame 3 consists of two beams 10 which are each bridged between the

side walls

52, 52 on both sides of the water channel 50. The beams 10 are disposed apart from each other in the water flow direction. Then, the hydroelectric generator main body 2 is supported by supporting both ends of the generator 6 in the water flow direction with the two beams 10 respectively.

[First Example of Fixing Device]
As shown in FIG. 3 and FIGS. 4A and 4B, the fixture 4A is mounted on the top of the side wall 52 (FIG. 1, FIG. 2) of the water channel 50 (FIG. 1, FIG. 2) in use. And a pair of sandwiching

portions

12 and 13 which respectively extend downward from both ends of the frame mounting portion 11 and which are in contact with the inner side surface and the outer side surface of the side wall 52, respectively. In this embodiment, the fixture 4A is divided into an inner fixed body 14 and an outer fixed body 15, and the inner fixed body 14 and the outer fixed body 15 are detachably coupled to each other by the coupling means 16. It has become. The inner fixed body 14 is integrally formed with the frame mounting portion 11 and the sandwiching portion 12 that is in contact with the inner side surface of the side wall 52. The outer fixed body 15 includes a pinching portion 13 that is in contact with the outer surface of the side wall 52.

The frame mounting portion 11 of the inner fixed body 14 has a bottom plate 11a on which the end of the beam 10 (FIGS. 1 and 2) is placed, and two plate-like stoppers rising upward from both end edges of the bottom plate 11a in the front-rear direction. It consists of 11b and 11b. The respective stoppers 11b rise from the entire area of the bottom plate 11a in the inward and outward direction. Here, the front-back direction indicates the water flow direction at the time of installation of the hydraulic power generation device 1. Further, the inward and outward directions indicate the width direction of the water channel when the hydraulic power generator 1 is installed, and the side closer to the water channel 50 (FIGS. 1 and 2), the inner side, and the far side are the outer side. The “side end of the support frame” described in the present disclosure may be an end of the beam 10.

Further, 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. The positioning member 18 is a thin plate extending in the inner and outer direction and extending in the front and rear direction, and is provided with a plurality of screw holes 19 penetrating in the inner and outer 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 / outward direction is determined in accordance with the length of the side end of the beam 10 placed on the frame mounting portion 11.

A plurality of (for example, three) fixing bolt holes 20 through which fixing bolts 35 (FIGS. 4A and 4B) described later are inserted are provided at positions near the inner ends of the stoppers 11b. Further, a planar L-shaped connecting member 21 is attached to the outer end of each stopper 11 b by a plurality of bolts 22 and nuts 23. The coupling member 21 is provided with coupling bolt holes 24 (FIGS. 4A and 4B) in a portion 21a which protrudes in the front-rear direction more than the stopper 11b. Furthermore,

elastic bodies

25 and 26 made of a rubber material or the like are respectively provided on the upper and lower surfaces of the inner end portion of the bottom plate 11 a of the frame mounting portion 11.

The sandwiching portion 12 of the inner fixed body 14 includes 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 consists of the two

reinforcement parts

12b and 12b. The upper end of each reinforcing portion 12b is connected to 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 an outer surface which is a contact surface with the side wall 52 in the side wall contact portion 12 a.

The outer fixed body 15 is L-shaped as viewed from the front, and a portion along the front-rear direction constitutes 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 coupling bolt holes 28 (FIGS. 4A and 4B) at positions corresponding to the coupling bolt holes 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 an inner side surface which is a contact surface with the side wall 52 in the sandwiching portion 13.

The coupling means 16 are screwed to the

bolts

31 and 31 inserted into the coupling bolt holes 24 and 24 of the coupling members 21 and the coupling bolt holes 28 and 28 of the sandwiching portion 13 and the bolts 31 respectively. It consists of a nut 32 and so on.

[Installation of hydroelectric equipment]
When installing this hydraulic power unit 1 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 via the fixtures 4A. Hereinafter, the fixing method will be described.

First, as shown in FIG. 5, the inner fixed body 14 is placed on the upper end surface of the side wall 52 so that the sandwiching portion 12 is positioned 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. The outer fixed body 15 is disposed on the outer side of the side wall 52, and the bolt 31 is inserted into the connecting bolt holes 24 and 28 of the inner fixed body 14 and the outer fixed body 15, and the nut 32 screwed to the bolt 31. As shown in FIG. 6, the inner fixed body 14 and the outer fixed body 15 are combined. By further tightening the bolt 31 in this state, the inner side surface and the outer side surface of the side wall 52 are sandwiched between the sandwiching

portions

12 and 13 of the inner fixed body 14 and the outer fixed body 15 to fix the fixing tool 4A to the side wall 52 Do.

In the fixed state of the fixing tool 4A,

elastic bodies

26, 27 and 29 are respectively 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 sandwiching

portion

12 and 13. Therefore, the side wall 52 is not damaged. Further, the contact between the side wall 52 and the sandwiching

portions

12 and 13 becomes tighter, and the fixing strength of the fixture 4 to the side wall 52 is increased.

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

For fixing the end of the beam 10, the fixing bolt 35, the fixing bolt hole 20 of one stopper 11b, the long hole 36 (see FIG. 7) provided at the end of the beam 10, and the other stopper 11b It inserts in order of the bolt hole 20 for fixation, and it carries out by screwing a nut (not shown) in the protrusion end of the bolt 35 for fixation. The long holes 36 of the beam 10 penetrate in the width direction of the beam 10 and are long holes 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 fixing bolt holes 20 among the three fixing bolt holes 20 are performed.

Since the frame mounting portion 11 has the stopper 11 b, the operation of fixing the end of the beam 10 to the frame mounting portion 11 can be easily performed. That is, during the installation operation, the force in the water flow direction acts on the beams 10 of the support frame 3 because the impeller 5 receives the water flow. However, since the downstream side stopper 11b receives the force in the water flow direction acting on the end of the beam 10, 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. For this reason, it is not necessary to manually support the beam 10 so as not to move, and the operation of fixing the end 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 force in the water flow direction acting on the beam 10 can be received by the stopper 11b regardless of the direction of the water flow.

After the end of the beam 10 is fixed to the fixture 4A, as shown in FIG. 9, a pressing member 37 consisting of a bolt is screwed into the screw hole 19 (see FIG. 3) of the positioning member 18 The tip of the pressing member 37 is pressed against the end face 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 direction is adjusted. By pressing the pressing members 37 against the both end surfaces of the beam 10 as described above, the beam 10 is restrained from moving inward and outward directions, and the beam 10 is positioned in the channel width direction. Be done. It is also possible to adjust the position in the channel width direction of the beam 10 after positioning once. Instead of a bolt, a spring or the like may be used as the pressing member 37 to press the pressing part 34 against the end face of the beam 10.

Thus, the end of the beam 10 is placed on and fixed to the frame mounting portion 11 of the fixing tool 4A, and the fixing tool 4A is held by sandwiching the side wall 52 of the water channel 50 from both sides by the sandwiching

sections

12 and 13. It is fixed to the side wall 52. The position of the beam 10 in the water flow direction is determined by the stopper 11 b, and the position in the water channel width direction is determined by the pressing member 37. Thereby, the position in the water flow direction of the hydroelectric generator body 2 and the position in the water channel width direction are determined.

When the end of the beam 10 is fixed to the side wall 52 of the water channel 50 by this method, it is not necessary to carry out work such as foundation work and anchor driving on the side wall 52 and its periphery. For this reason, the hydraulic power unit 1 can be installed in the water channel 50 easily and inexpensively without damaging the side wall 52. Moreover, it is easy to change the installation position of the hydraulic power unit 1. Furthermore, since the side wall 52 of the water channel 50 is not damaged, the strength deterioration of the side wall 52 does not occur.

Since the fixing tool 4A is divided into the inner fixing body 14 and the outer fixing body 15, the distance between the sandwiching

portions

12 and 13 can be easily adjusted in accordance with the width of the upper end of the side wall 52. Moreover, since it is not necessary to provide a mechanism for adjusting the distance between the sandwiching

portions

12 and 13 in any of the sandwiching

portions

12 and 13, the sandwiching

portions

12 and 13 can be configured simply.

[Second Example of Fixing Device]
10 and 11 show a second example of the fixture. A spacer 40 intervenes between the inner fixed body 14 and the outer fixed body 15 in the fixing device 4B. Spacer 40 is in the form of a block whose both end surfaces are in contact with inner fixed body 14 and outer fixed body 15, respectively, and has connecting bolt holes 41 penetrating in the inner and outer directions. The configuration other than the spacer 40 is the same as that of the first example.

The fixture 4B is shown by a bolt 31 inserted through the fixing member 14, the spacer 40, and the connecting bolt holes 24, 41 and 28 of the outer fixed body 15, a nut 32 screwed to the bolt 31, etc. As in 11, the inner fixed body 14 and the outer fixed body 15 are coupled via the spacer 40. By interposing the spacer 40 between the inner fixed body 14 and the outer fixed body 15 as described above, the width of the upper end of the side wall 52 is wide, and the dimension in the inner and outer directions is only with the inner fixed body 14 and the outer fixed body 15. In the case of a shortage, the length of the fixture 4B can be easily adjusted. When changing the installation position of the hydroelectric power generation device 1 or installing the hydroelectric power generation device 1 in another water channel, according to the width of the upper end of the side wall of the water channel, It can respond by producing the spacer 40 which has and preparing the volt | bolt 31 of the length according to it.

[Third Example of Fixing Device]
12A, B and FIGS. 13A, B show a third example of the fixture. The fixture 4C has

intermediate members

42, 42 that can be positionally adjusted in the inward and outward directions with respect to the inner fixed body 14 instead of the

coupling members

21 and 21 in the fixture 4A of the first example. Each intermediate member 42 is provided with an elongated hole 43 elongated in the inner and outer direction, and a bolt 22 inserted through the elongated hole 43 and a bolt hole (not shown) provided in the stopper 11 b of the inner fixed body 14 The intermediate member 42 is fixed to the inner fixed body 14 by a nut 23 or the like screwed to the bolt 22. By changing the insertion position of the bolt 22 in the long hole 43, the position of the intermediate member 42 in the in-out direction can be adjusted. Similar to the coupling member 21, the intermediate member 42 is also coupled to the outer fixed body 15 by the coupling means 16 composed of the bolt 31, the nut 32 and the like at a portion 42 a that protrudes outward in the front-rear direction than the stopper 11 b.
The configuration other than these is the same as the first example.

According to this configuration, it is possible to adjust the inward and outward position of the intermediate member 42 with respect to the inner fixed body 14 to adjust the effective length of the fixing tool 4C, that is, the distance between the sandwiching

portions

12 and 13. 12A and 12B show a state in which the effective length of the fixing tool 4C is the shortest, and FIGS. 13A and 13B show a state in which the effective length of the fixing tool 4C is the longest. Thus, since the effective length of the fixture 4C can be largely 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 . In addition, it is not necessary to prepare the bolt 31 and the nut 32 in accordance with the width of the upper end of the side wall 52, such as the fixture 4B using the spacer 40 in the second example.

[Fourth Example of Fixing Device]
FIG. 14 shows a fourth example of the fixture. The fixing tool 4D is different from the

fixing tools

4A, 4B, 4C of the first to third examples in the outer fixing body 15. That is, in the outer fixing body 15 of the fixing tool 4D, the elastic body 29 is urged inward by the urging means with respect to the outer fixing body main body 15a having an L shape in front view. In this example, the elastic body 29 serves as the sandwiching portion 13 of the outer fixed body 15. In other words, the sandwiching portion 13 of the outer fixed body 15 is biased toward the sandwiching portion 12 of the inner fixed body 14 by the biasing means.

In the illustrated example, the biasing means comprises a compression spring 45. Specifically, a guide rod 46 fixed to the elastic body 29 is inserted through a through hole (not shown) provided in the outer fixed body main body 15a so as to be movable back and forth in the inner and outer directions. The compression spring 45, which is 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 retaining is screwed to a screw portion provided at the tip of the guide shaft 46. The biasing means may be other than the compression spring 45.
The configuration other than these is the same as the first example.

According to this configuration, when the fixing tool 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 surface of the side wall 52 by the restoring force of the compression spring 45 which is biasing means. . As a result, the sandwiching portion 12 of the inner fixed body 14 is also pressed against the inner side surface of the side wall 52, and the sidewall 52 is sandwiched from both sides by both sandwiching

portions

12 and 13.

Thus, by pressing the sandwiching

portions

12 and 13 against the inner side surface and the outer side surface of the side wall 52 by the compression spring 45, the force for sandwiching the side wall 52 with the pair of sandwiching

portions

12 and 13 is stabilized, 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 tightened too much, the pinching force of the pair of pinching

portions

12 and 13 does not exceed the restoring force at the maximum compression of the compression spring 45. Therefore, the pinching force that is too strong does not damage the side wall 52 or the fixture 4D itself. 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 hold the sandwiching force of the side wall 52.

In each of the

fixtures

4A, 4B, 4C, and 4D in the first to fourth examples, the frame mounting portion 11 is provided on the inner fixing member 14, but the frame mounting portion 11 is provided on the outer fixing member 15. May be Also, the frame mounting portion 11 may be provided on both the inner fixed body 14 and the outer fixed body 15.

[Fifth Example of Fixing Device]
FIG. 15 shows a fifth example of the fixture. This fixing tool 4E is not divided into the inner fixing body 14 and the outer fixing body 15 like the

respective fixing tools

4A, 4B, 4C, 4D. Similar to the

fixtures

4A, 4B, 4C, 4D, the first (for example, inner) sandwiching portion 12 extends downward from one end of the frame mounting portion 11, and the elastic body 27 is in contact with its side wall 52. It is provided. On the other hand, the second (for example, the outer) sandwiching portion 13 performs the first sandwiching by the compression spring 45 which is biasing means with respect to the hanging portion 49 extending downward from the other end of the frame mounting portion 11. It is biased to the side (inside) of the part 12. The sandwiching portion 13 is made of an elastic body. The compression spring 45 and the configuration related thereto are the same as the fourth example.

The fixing tool 4E has an upper end 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 fixing tool 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 sandwiching the sidewall 52 and the portion generating the sandwiching force are located on the same straight line. For this reason, the fixture 4E can be fixed to the side wall 52 without generating an extra moment.

As described above, although the preferred embodiments have been described with reference to the drawings, various additions, modifications or deletions can be made without departing from the spirit of the present invention. Therefore, such is also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Hydroelectric power generation device 2 ... Hydroelectric power generation device main body 3 ...

Support frame

4A, 4B, 4C, 4D, 4E ... Fixtures 5 ... Prams 6 ... Generator 11 ...

Frame mounting part

12, 13 ... Insertion part 50 ... Waterway 52 ... Side wall

Claims

An impeller for converting hydraulic power into rotational power, and a hydroelectric generator main body having a generator that generates electricity by rotation of the impeller;
A supporting frame for supporting the hydroelectric generator body;
And a plurality of fixing devices for fixing the supporting frame to side walls on both sides of the water channel,
Each of the fixtures
A frame mounting portion mounted on the upper surface of the corresponding side wall of the water channel and mounting and fixing the side end of the support frame;
A hydroelectric power generating apparatus, comprising: a pair of sandwiching portions extending downward from both ends of the frame mounting portion and respectively abutted against the inner side surface and the outer side surface of the side wall to sandwich the side wall.
In the hydroelectric generator according to claim 1,
Each of the fixtures
An inner fixed body having a first sandwiching portion of the pair of sandwiching portions, the first sandwiching portion being in contact with the inner side surface of the side wall;
An outer fixed body having a second sandwiching portion which is a second sandwiching portion of the pair of sandwiching portions, the second sandwiching portion being in contact with the outer side surface of the side wall;
A hydraulic power generator comprising: coupling means for coupling the inner fixed body and the outer fixed body to each other such that the distance between the first and second sandwiching portions can be adjusted.
The hydroelectric power generator according to claim 2, wherein a spacer is provided between the inner fixed body and the outer fixed body, a spacer in which both end surfaces are in direct or indirect contact with the inner fixed body and the outer fixed body, respectively. Hydroelectric equipment.
In the hydroelectric generator according to claim 2,
Each of the fixtures
It has an intermediate member which is adjustably fixed to one of the inner fixed body and the outer fixed body such that the position in the width direction of the water channel can be adjusted, and the intermediate member is the inner fixed body and the outer fixed body. A hydroelectric device coupled by the coupling means to either one or the other.
The hydroelectric generator according to any one of claims 1 to 4.
Each of the fixtures
The hydraulic power unit in which the elastic body is provided in the contact surface with the side wall in either one or both of the 1st and 2nd insert parts.
The hydroelectric generator according to any one of claims 1 to 5, wherein
Each of the fixtures
The hydraulic power unit according to claim 1, further comprising biasing means for biasing at least one of the first and second pinching portions toward the other pinching portion.
The hydroelectric power generator according to any one of claims 1 to 6, wherein the side end of the supporting frame on which the frame mounting portion of each of the fixtures is moved in the water flow direction of the water channel A hydroelectric generator with a stopper that regulates
The hydroelectric power generation apparatus according to any one of claims 1 to 7.
Each of the fixtures
A hydroelectric power generating apparatus, comprising: a pressing member capable of pressing in the water channel width direction against the end face of the side end of the support frame placed on the frame placement unit.
A hydroelectric power generation system comprising a hydroelectric generator main body having an impeller for converting hydraulic power to rotational power and a generator that generates electricity by rotation of the impeller, and a supporting frame for supporting the hydroelectric power generation device, A fixing device for fixing,
An inner fixed body having a first sandwiching portion abutting on an inner side surface of the side wall;
An outer fixed body having a second sandwiching portion abutting on an outer side surface of the side wall;
Coupling means for coupling the inner fixed body and the outer fixed body to each other such that the distance between the first and second sandwiching portions can be adjusted;
A hydroelectric power generation apparatus provided with a frame mounting portion mounted on an upper surface of a side wall of the water channel and fixing a side end of the support frame to one or both of the inner fixed body and the outer fixed body Fasteners.