KR102337145B1 - Micro hydro power generation apparatus - Google Patents

Abstract

The present invention relates to a small hydro power generation apparatus. One embodiment of the small hydro power generation apparatus may comprise: an inlet unit wherein an opening is provided, and a running water is introduced through the opening; a flow unit communicating with the inlet unit and providing a space through which the running water falls and flows; a rotation unit disposed to pass through the flow unit and provided to rotate; and a flow area adjustment unit disposed at a position where the inlet unit and the flow unit communicate with each other, and adjusting a cross-sectional area of a communication port through which the inlet unit and the flow unit communicate. An objective of the present invention is to provide the small hydro power generation apparatus with high power generation efficiency.

Description

Small hydro power generation device {MICRO HYDRO POWER GENERATION APPARATUS}

The present invention relates to a small hydro power generation device, and more particularly, to a small hydro power generation device having a structure with improved power generation efficiency.

The content described in this section merely provides background information on the present invention and does not constitute the prior art.

A general hydroelectric power generation method requires a large-scale power generation facility, a huge amount of energy source for power generation, and a high drop.

Power generation facilities such as coal and oil are also the main cause of environmental pollution due to the generation of pollutants from fossil fuels. Power generation methods using natural energy such as sunlight, tidal power, wave power, and wind power are eco-friendly and permanent, but there are significant restrictions on weather and environment. In particular, it has to be applied only to a limited place, so there is a disadvantage in that the installation place is limited.

On the other hand, small-scale hydroelectric power generation is a relatively small-scale power generation facility, so there are no significant restrictions on installation. In addition, if there is running water with a certain flow rate, stable electricity production is possible.

Large-scale hydroelectric power generation can cause environmental damage due to the construction of dams and submergence due to dams. However, small-scale hydroelectric power generation is possible without large-scale civil works such as dam construction and without harming the surrounding environment.

In terms of these advantages and eco-friendliness, small hydro power generation requires active research and development. On the other hand, in the technology development of small hydro power generation, it is necessary to study the energy conversion efficiency, that is, to increase the power generation efficiency.

It is an object of the present invention to provide a small hydro power generation device with high power generation efficiency.

It is also an object of the present invention to provide a small hydro power generator having a structure capable of increasing the strength of the vortex formed by running water.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

One embodiment of the small hydro power generation device is provided with an opening, the inlet through which running water is introduced; a flow part communicating with the inlet part and providing a space through which running water falls and flows; a rotating part disposed to pass through the flow part and provided to rotate; and a flow area adjusting part disposed at a position where the inlet part and the flow part communicate with each other, and adjusting a cross-sectional area of a communication hole through which the inlet part and the flow part communicate.

The flow area control unit includes a plurality of rotary blades that rotate in a spiral to cover at least a portion of the communication hole to reduce and expand the cross-sectional area of the communication hole; a base plate on which the rotary blade is rotatably mounted; And it may include a control lever for controlling the rotation of the rotary blade.

The flow area control unit may be mounted on a lower surface of the inlet and an upper surface of the flow unit, and the control lever may be provided to be exposed to the outside from a lower side of the inlet.

The inlet portion, the curved side wall is provided, the vortex forming portion for forming a vortex in the flowing water flowing in; and a guide part provided to have a straight shape in the longitudinal direction, communicating with the vortex-forming part, and guiding the flowing water flowing into the vortex-forming part.

The guide portion may include: a first bottom portion forming a bottom surface; a first straight side wall connected to one end of the curved side wall of the vortex forming unit and provided in a straight shape; and a second straight sidewall having one end coupled to the curved sidewall of the vortex forming part, spaced apart from the first straight sidewall, and provided in a straight shape.

The vortex forming part may include: a second bottom part connected to the first bottom part, forming a bottom surface, and having a communication hole communicating with the flow part in the central part; and the curved sidewall disposed on the second bottom portion and forming a vortex in the flowing water, wherein the curved sidewall has a diameter decreasing from an end connected to the first straight sidewall in the circumferential direction. It may be provided in a vortex type.

One embodiment of the small hydro power generation device, the first support portion to which the inlet and the flow portion are mounted; a frame unit coupled to the first support unit and provided with a plurality of frames; and a second support part coupled to the frame part under the first support part and maintaining a spacing between the plurality of frames of the frame part.

One embodiment of the small hydro power generation device is disposed on the upper side of the inlet portion, supported by the inlet portion, the first rotation support portion coupled so that the rotation portion is rotatable; and a second rotation support part disposed below the flow part, supported by the flow part, and rotatably coupled to the rotation part.

One embodiment of the small hydroelectric power generation device, is disposed on the upper side of the inlet portion, coupled to the frame portion, the first mounting portion to which the first rotation support is mounted; and a second mounting part disposed below the flow part, the second rotation support part mounted, and an outlet through which the running water flowing through the flow part is discharged.

In the small hydro power generation device according to the present invention, the flow area control unit may change the cross-sectional area of the communication port so that, as the flow rate of running water changes, the intensity of the vortex in the flow unit is maximized at each flow rate. Accordingly, it is possible to increase the power generation efficiency of the small hydro power generation device.

In addition, in the small hydro power generation device according to the present invention, the curved sidewall of the vortex forming part is provided in a vortex type whose diameter decreases in the circumferential direction, so that the flowing water flowing into the vortex forming part forms a vortex and as it flows, the strength of the vortex is increased can grow Therefore, it is possible to increase the impact force of the running water applied to the rotating part by effectively forming and strengthening the vortex in the running water to increase the power generation efficiency of the small hydro power generation device.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a perspective view showing a small hydro power generation device according to an embodiment.
2 is a front view showing a small hydro power generation device according to an embodiment.
3 is a cross-sectional view showing a small hydro power generation device according to an embodiment.
FIG. 4 is a perspective view of FIG. 3 ;
FIG. 5 is a view looking in the direction AA of FIG. 2 .
6 is a view showing a state in which the base plate of the flow area control unit is removed in FIG. 5 .

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may be the second component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless otherwise stated, and when “C to D” is used, it means that there is no specific opposite description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

1 is a perspective view showing a small hydro power generation device according to an embodiment. 2 is a front view showing a small hydro power generation device according to an embodiment.

3 is a cross-sectional view showing a small hydro power generation device according to an embodiment. FIG. 4 is a perspective view of FIG. 3 ; FIG. 5 is a view looking in the direction AA of FIG. 2 .

The small hydroelectric power generation device according to the embodiment may be used to produce electricity using running water having a relatively small flow rate. For example, the small hydro power generation device of the embodiment may be operated using running water discharged from a farm used for aquaculture of fish and other aquatic organisms. Since it is common that running water of a relatively constant flow rate is continuously discharged in aquaculture farms, the small hydroelectric power generation device of the embodiment can be stably operated by using such running water.

In another embodiment, by introducing and using river water, the small hydroelectric power generation device of the embodiment can be operated. However, the present invention is not limited thereto.

The small hydro power generation device according to the embodiment may be provided with a rotating part 300 that rotates by an impact applied by the flowing water to at least a part of a section in which the flowing water falls due to the load. The rotating unit 300 may rotate to rotate a generator coupled thereto to produce electricity.

The small hydro power generation device may include an inlet 100 , a flow unit 200 , a rotation unit 300 , a flow area control unit 700 , an impeller unit 800 , and a guide vane unit 900 . The flow area adjusting unit 700 will be described below with reference to the drawings, and the remaining components will be described first.

The inlet 100 is provided with an opening 101 , and running water may flow in through the opening 101 . Running water flows into the opening 101 of the inlet 100 and flows through the small hydroelectric power generation device to apply an impact to the rotary device to rotate the rotary device.

The flow part 200 may communicate with the inlet part 100 and provide a space in which running water falls and flows. The flow part 200 may form a space in which running water flows in the vertical direction of the small hydro power generation device so that the running water can apply an impact to the rotating part 300 while falling by the load.

The rotating part 300 may be disposed to pass through the moving part 200 and may be provided to rotate. The rotating unit 300 may be rotated by the impact applied by running water to produce electricity.

The rotating shaft of the rotating unit 300 may be provided to be disposed in the vertical direction of the small hydro power generation device. Accordingly, at least a portion of the rotation unit 300 may be provided to be mounted in the space of the flow unit 200 in which a space is formed in the vertical direction of the small hydro power generation device.

A gear 10 may be mounted on the upper end of the rotation unit 300 , and the gear 10 may be mechanically coupled to a generator (not shown). Accordingly, as the rotating unit 300 rotates by running water, the generator also rotates to produce electricity.

The impeller unit 800 may be mounted on the rotating unit 300 and disposed in a flow path of running water to receive rotational force by the flowing water to rotate and rotate the rotating unit 300 at the same time. In this case, the impeller unit 800 may include a first impeller 810 and a second impeller 820 .

The first impeller 810 may be disposed in the inlet 100 , a direction of a rotational shaft may be disposed to intersect the flow direction of the flowing water, and a plurality of first blades may be radially disposed about the rotational shaft.

The second impeller 820 may be disposed on the flow unit 200 , the direction of a rotational shaft may be parallel to the flow direction of the flowing water, and a plurality of second blades may be radially disposed about the rotational shaft.

The guide vane part 900 may be disposed on the upper side of the second impeller 820 in the flow part 200 , and a plurality of vanes may be radially disposed with respect to the center. The guide vane part 900 may be mounted on the flow part 200 so as not to rotate.

The guide vane unit 900 may guide the flowing water flowing through the flow unit 200 to form a vortex or to strengthen the vortex of the flowing water. Therefore, a vortex is formed in the flowing water passing through the guide vane unit 900 , and the vortex already formed in the flowing water can be further strengthened. Therefore, in order to form a vortex in running water or to strengthen the vortex, the vanes of the guide vane unit 900 may be provided to be inclined with respect to the rotational axis direction of the rotating unit 300 .

The inlet 100 may include a vortex forming unit 110 and a guide unit 120 .

The vortex forming unit 110 is provided with a curved sidewall 111 and may form a vortex in the flowing water flowing therein. The vortex forming unit 110 has a curved side wall 111 , and flowing water flowing into the guide unit 120 may form a vortex while the curved side wall 111 collides.

The center of the vortex forming part 110 may be in communication with the flow part 200 . Therefore, the flowing water flowing into the inlet 100 becomes a vortex in the vortex forming unit 110 , and may fall again from the center of the outer stream forming unit by gravity to flow through the flowing unit 200 .

The flowing water impacts the first impeller 810 disposed in the vortex forming unit 110 while flowing, and also impacts the second impeller 820 disposed in the flow unit 200, so that the first impeller 810 and the second The rotating part 300 on which the second impeller 820 is mounted may be rotated.

The guide unit 120 may be provided to have a straight shape in the longitudinal direction, communicate with the vortex forming unit 110 , and guide flowing water flowing into the vortex forming unit 110 . The guide unit 120 is provided to communicate with the vortex forming unit 110 at the edge of the vortex forming unit 110 , so that running water flowing into the vortex forming unit 110 through the guide 120 is a vortex forming unit. Guided by the curved sidewalls 111 of 110 may help to form a vortex.

The guide part 120 may include a first bottom part 121 , a first straight side wall 122 , a second straight side wall 123 , and a ceiling part.

The first bottom part 121 forms the bottom surface of the guide part 120 , and is formed to protrude from the vortex formation part 110 , so that running water flows into the vortex formation part 110 through the guide part 120 . It can be the bottom of the passage.

The first straight side wall 122 may be connected to one end of the curved side wall 111 of the vortex forming part 110 and be provided in a straight shape.

The second straight side wall 123 has one end coupled to the curved side wall 111 of the vortex forming part 110 , and spaced apart from the first straight side wall 122 , and may be provided in a straight shape.

The first bottom part 121 , the first straight side wall 122 , and the second straight side wall 123 are integrally formed by, for example, bending a plate-shaped member to become one guide part 120 . can One end of the first bottom portion 121 , the first straight side wall 122 , and the second straight side wall 123 forms an opening 101 , and the running water flows through the opening 101 by the guide unit 120 . It may be guided and introduced into the vortex forming unit 110 .

Both sides of the ceiling portion may be coupled to the first straight side wall 122 and the second straight side wall 123 to form an upper surface of the guide unit 120 . However, since the ceiling part is not an essential component of the guide part 120 , the guide part 120 may be formed without a ceiling part.

The vortex forming part 110 may include a second bottom part 112 and a curved sidewall 111 .

The second bottom part 112 may be connected to the first bottom part 121 and form a bottom surface, and a communication port 1121 communicating with the flow part 200 may be formed in the central part. The curved side wall 111 may be disposed on the second bottom 112 and form a vortex in the flowing water flowing therein.

The flowing water flowing into the vortex forming unit 110 is guided by the curved sidewall 111 to form a vortex, and the flowing water of the vortex is applied to the first impeller 810 disposed in the vortex forming unit 110 as an impact to the The first impeller 810 and the rotating part 300 may be rotated.

On the other hand, running water flows into the flow part 200 through the communication port 1121 in the central part of the second bottom part 112, and applies an impact to the second impeller 820 mounted on the flow part 200. The rotating part 300 may be rotated.

That is, running water applies an impact to the first impeller 810 and the second impeller 820 to rotate the rotating part 300 on which the first impeller 810 and the second impeller 820 are mounted to produce electricity. .

Referring to FIG. 4 , the curved side wall 111 constituting the vortex forming unit 110 may be provided in a vortex type whose diameter decreases in the circumferential direction from the end connected to the first straight side wall 122 .

Accordingly, the flowing water introduced through the guide unit 120 may be guided by the vortex-type vortex forming unit 110 so that as the stream line rotates, it may be provided to be closer to the communication port 1121 of the central part. That is, in flowing water, a vortex is formed by the vortex forming unit 110 , and as it flows, the strength of the vortex may gradually increase.

That is, the flowing water flowing into the vortex forming unit 110 flows according to the shape of the curved sidewall 111 to form a vortex, and as the flowing water flows by the curved sidewall 111, the strength of the vortex is gradually increased can grow

In the embodiment, as the curved sidewall 111 of the vortex forming unit 110 is provided in a vortex type whose diameter decreases in the circumferential direction, the flowing water flowing into the vortex forming unit 110 forms a vortex and flows. The strength of the vortex can be increased. Therefore, it is possible to increase the impact force of the running water applied to the rotating part 300 by effectively forming and strengthening the vortex in the running water, thereby increasing the power generation efficiency of the small hydro power generation device.

As shown in FIG. 5 , the small hydro power generation device of the embodiment may further include a flow area control unit 700 . The flow area control unit 700 is disposed at a position where the inlet part 100 and the flow part 200 communicate with each other, and a communication port 1121 through which the inlet part 100 and the flow part 200 communicate with each other. can control the cross-sectional area of

By adjusting the cross-sectional area of the communication port 1121, which is the inlet of the flow unit 200, the flow area control unit 700 can actively cope with a change in the flow rate of running water flowing into the small hydro power generation device.

In particular, the intensity of the vortex generated in the flowing water may vary according to a correlation between the flow rate of the flowing water flowing into the flow unit 200 and the cross-sectional area of the communication port 1121 .

By controlling the flow area control unit 700 to change the cross-sectional area of the communication port 1121 , as the flow rate of running water changes, the intensity of the vortex in the flow unit 200 at each flow rate can be maximized.

At this time, the cross-sectional area of the communication port 1121 in which the intensity of the vortex in the flow unit 200 is maximized at each flow rate of running water may be derived from data obtained through experiments or the use of a small hydro power generator.

The flow area control unit 700 may include a rotary blade 710 , a base plate 720 , and a control lever 730 . The rotary blade 710 is provided in plurality, and rotates spirally to cover at least a portion of the communication hole 1121 to reduce and expand the cross-sectional area of the communication hole 1121 .

The rotary blade 710 may be rotatably mounted to the base plate 720 . The control lever 730 may control the rotation of the rotary blade 710 . The user operates the control lever 730 and rotates the rotary blade 710 to reduce and expand the cross-sectional area of the communication port 1121, so that the intensity of the vortex in the flow unit 200 is increased according to the flow rate of each flowing water. The cross-sectional area of the communication port 1121 may be changed to be the maximum.

In an embodiment, the flow area control unit 700 may change the cross-sectional area of the communication port 1121 so that the intensity of the vortex in the flow unit 200 is maximized at each flow rate as the flow rate of running water changes. have.

The small hydroelectric power generation device of the embodiment may include a first support portion 410 , a frame portion 420 and a second support portion 430 . The inlet part 100, the flow part 200, and the rotating part 300 can be stably mounted and supported in the small hydro power generation device by the first support part 410, the frame part 420, and the second support part 430. .

The inlet part 100 and the flow part 200 may be mounted on the first support part 410 . The frame part 420 is coupled to the first support part 410 and may be provided with a plurality of frames. The second support part 430 may be coupled to the frame part 420 under the first support part 410 and may be provided to maintain a spacing between the plurality of frames of the frame part 420 .

The small hydroelectric power generation apparatus of the embodiment may include a first rotation support 510 and a second rotation support 520 so that the rotation unit 300 can rotate smoothly while being stably supported.

The first rotation support part 510 may be disposed on the upper side of the inlet part 100 , and supported by the inlet part 100 , and may be coupled to the rotation part 300 to be rotatable. The second rotation support part 520 may be disposed below the flow part 200 , be supported by the flow part 200 , and be coupled to the rotation part 300 to be rotatable.

In order for the first rotation support 510 and the second rotation support 520 to be mounted on the small hydro power generation device, the small hydro power generation device may include a first mounting part 610 and a second mounting part 620 .

The first mounting part 610 may be disposed on the upper side of the inlet part 100 , coupled to the frame part 420 , and provided such that the first rotation support part 510 is mounted thereon. The second mounting part 620 is disposed below the flow part 200 , the second rotation support part 520 is mounted, and an outlet through which the running water flowing through the flow part 200 is discharged is formed. can

The first mounting part 610 and the second mounting part 620 may be provided to mount the first rotational support part 510 and the second rotational support part 520 having relatively small diameters to the small hydro power generation device.

6 is a view illustrating a state in which the base plate 720 of the flow area adjusting unit 700 is removed in FIG. 5 . Hereinafter, the flow area adjusting unit 700 will be described in more detail with reference to FIGS. 5 and 6 .

The flow area control unit 700 may be mounted on a lower surface of the inlet unit 100 and an upper surface of the flow unit 200 . The flow area control unit 700 may be coupled to the lower surface of the second bottom part 112 . At this time, the central portion of the flow area control unit 700 is in an open state, and may be disposed at a position corresponding to the communication port 1121 of the second bottom portion 112 .

Accordingly, as the area of the central portion of the flow area control unit 700 is changed, the flow area through which running water passes through the communication port 1121 may be changed. Due to this structure, the flow area control unit 700 may adjust the cross-sectional area of the communication port 1121 .

On the other hand, the control lever 730 may be provided to be exposed to the outside from the lower side of the inlet (100). Accordingly, the user can easily access the control lever 730 and rotate the control lever 730 to adjust the cross-sectional area of the communication port 1121 .

In the flow area control unit 700 , a guide plate 740 may be provided between the rotary blade 710 and the base plate 720 . The guide plate 740 may guide the rotational operation of the plurality of rotational blades 710 to rotate the plurality of rotational blades 710 helically based on the center of the flow area adjusting unit 700 .

A plurality of slits 741 (slits) may be formed in the guide plate 740 . As shown in FIG. 6 , the plurality of slits 741 may be arranged in a spiral shape as a whole based on the center of the flow area adjusting unit 700 . Of course, each slit 741 may be formed in a straight line.

A protrusion 711 may be formed on each of the plurality of rotary blades 710 . The protrusion 711 may be inserted into the slit 741 to move along the slit 741 . The guide plate 740 is fixed, and the rotary blade 710 is guided by the slit 741 of the guide plate 740 while rotating so as to rotate and move spirally.

Due to this structure, when the rotary blade 710 rotates spirally, the cross-sectional area of the central open portion of the flow area adjusting unit 700 can be expanded or reduced, and thus the cross-sectional area of the communication port 1121 can be adjusted. can

When the user rotates the control lever 730, the rotary blade 710 may rotate accordingly. As described above, the rotary blade 710 is guided by the slit 741 of the guide plate 740 to rotate and move spirally, so that the cross-sectional area of the communication hole 1121 can be adjusted.

Meanwhile, the control lever 730 may be manually rotated by the user. However, in another embodiment, an automatic rotation device coupled with the control lever 730 may be mounted on the small hydro power generator to automatically operate the control lever 730 .

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

10: gear
100: inlet
101: opening
110: vortex forming part
111: curved side wall
112: second bottom part
1121: Yeontong-gu
120: information department
121: first bottom part
122: first straight side wall
123: second straight side wall
200: moving part
300: rotating part
410: first support
420: frame portion
430: second support
510: first rotation support part
520: second rotation support
610: first mounting part
620: second mounting part
700: flow area control unit
710: rotor blades
711: protrusion
720: base plate
730: control lever
740: guide plate
741: slit
800: impeller unit
810: first impeller
820: second impeller
900: guide vane unit

Claims (9)

an inlet having an opening, through which running water is introduced;
a flow part communicating with the inlet part and providing a space through which running water falls and flows;
a rotating part disposed to pass through the flow part and provided to rotate; and
A flow area control unit disposed at a position where the inlet and the flow portion communicate with each other, and adjusts a cross-sectional area of a communication port through which the inlet and the flow portion communicate
including,
The flow area control unit,
Rotating blades provided in plurality, rotating in a helical manner to reduce and expand the cross-sectional area of the communication hole by covering at least a portion of the communication hole;
a base plate on which the rotary blade is rotatably mounted; and
Control lever for controlling the rotation of the rotary blade
including,
The flow area control unit is mounted on a lower surface of the inlet and an upper surface of the flow unit,
The control lever is provided to be exposed to the outside from the lower side of the inlet,
small hydro power plant. delete delete According to claim 1,
The inlet is
A vortex forming unit having a curved side wall and forming a vortex in the flowing water; and
A guide part provided to have a straight shape in the longitudinal direction, communicating with the vortex-forming part, and guiding the flowing water flowing in to the vortex-forming part
containing,
small hydro power plant. 5. The method of claim 4,
The guide is
a first bottom portion forming a bottom surface;
a first straight side wall connected to one end of the curved side wall of the vortex forming unit and provided in a straight shape; and
One end is coupled to the curved side wall of the vortex forming part, the second straight side wall is provided to be spaced apart from the first straight side wall, and provided in a straight shape
containing,
small hydro power plant. 6. The method of claim 5,
The vortex forming part,
a second bottom part connected to the first bottom part, forming a bottom surface, and having a communication hole communicating with the flow part in the central part; and
The curved sidewall is disposed on the second bottom and forms a vortex in the flowing water flowing in.
including,
The curved side wall,
It is provided in a vortex type whose diameter decreases in the circumferential direction from the end connected to the first straight side wall,
small hydro power plant. According to claim 1,
a first support part on which the inlet part and the flow part are mounted;
a frame unit coupled to the first support unit and provided with a plurality of frames; and
A second support part coupled to the frame part under the first support part and maintaining a spacing between the plurality of frames of the frame part
further comprising,
small hydro power plant. 8. The method of claim 7,
a first rotation support part disposed above the inlet part, supported by the inlet part, and coupled to the rotation part so as to be rotatable; and
A second rotation support part disposed below the flow part, supported by the flow part, and coupled to the rotation part so as to be rotatable.
further comprising,
small hydro power plant. 9. The method of claim 8,
a first mounting part disposed on the upper side of the inlet part, coupled to the frame part, and mounted with the first rotation support part; and
A second mounting part disposed below the flow part, the second rotation support part is mounted, and an outlet through which running water flowing through the flow part is discharged is formed.
further comprising,
small hydro power plant.

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