KR101791355B1 - Hydroelectric generator - Google Patents

Abstract

A hydroelectric generator is initiated. A hydrostatic generator according to one embodiment comprises: a first frame in the form of a multi-ring comprising a coil; A second frame including a coil and spaced apart from the first frame in a first direction and having a hollow portion facing the hollow portion of the first frame; A shaft connecting the first frame and the second frame; And a plurality of first rotor blades provided on each side of the first frame and on each side of the second frame and including a magnetic body and rotating in accordance with a flow of the fluid, A current can be generated in an electromagnetic induction manner by the relative rotation of the first frame and the relative rotation of the second frame and the first flywheel.

Description

HYDROELECTRIC GENERATOR

The following description relates to a hydroelectric generator.

The general hydroelectric power generator may include a turbine portion generating a rotational force by the inflow of fluid and a power generating portion generating a current using the rotational force. In order to generate a current by using a rotational force, an electromagnetic induction phenomenon due to a relative rotation between a rotor (rotor) and a stator (stator) can be used. The rotor may be provided with either a magnetic body or a coil, and the stator may be provided with a magnetic body and the other one of the coils. The relative rotation of the rotor and the stator causes a change in the magnetic field, and a current can be generated in the coil due to the change in the magnetic field.

The fluid flows into the turbine section to rotate a turbine (runner), and the rotating shaft can be rotated by the rotation of the turbine. Then, in the power generation section, the rotor connected to the rotation shaft rotates together with the rotation axis, and the rotor can rotate relative to the stator disposed around the rotation axis.

On the other hand, considerable flow and dropping are required to obtain sufficient rotational force for hydroelectric power generation in the turbine section. This is because the potential energy of the fluid is changed into kinetic energy by the drop, and the aberration is rotated by the kinetic energy.

However, in most of Korea's rivers, there are few water basins with a large drop-off point, which may restrict the places where hydroelectric generators are installed.

Japanese Patent Application Laid-Open No. 10-1091654

The embodiments described herein are intended to provide a hydropower generator capable of generating even in a place free from falls.

A hydrostatic generator according to one embodiment includes a frame in the form of a multi-ring comprising a coil; And a plurality of rotor blades provided on each side of the frame and including a magnetic body and rotating in accordance with the flow of the fluid, and current can be generated in an electromagnetic induction manner by the relative rotation of the frame and the rotor blades.

In addition, the rotor blade may be a hollow pipe shape surrounding the frame, and may be formed with serrations continuous in the circumferential direction on the outer circumferential surface.

A hydrostatic generator according to another embodiment comprises: a first frame in the form of a multi-ring comprising a coil; A second frame including a coil and spaced apart from the first frame in a first direction and having a hollow portion facing the hollow portion of the first frame; A shaft connecting the first frame and the second frame; And a plurality of first rotor blades provided on each side of the first frame and on each side of the second frame and including a magnetic body and rotating in accordance with a flow of the fluid, A current can be generated in an electromagnetic induction manner by the relative rotation of the first frame and the relative rotation of the second frame and the first flywheel.

The first frame may include a first reinforcing bar having one end connected to one point of the first frame and the other end connected to another point opposing the one point and a through hole formed at a central point in the longitudinal direction And the second frame includes a second reinforcing bar having one end connected to one point of the second frame and the other end connected to another point opposite to the one point and a through hole formed at a central point in the longitudinal direction, The shaft may be disposed at the center of the first frame and the second frame while passing through the through holes of the first reinforcing bars and the through holes of the second reinforcing bars.

The apparatus may further include a second rotor blade that is provided at one end of the shaft and is spaced apart from the first frame in a second direction opposite to the first direction and guides the fluid into the first frame.

The second rotor blade has a conical shape that is sharpened toward the second direction. The second rotor blade has a plurality of slits spaced apart from each other in the circumferential direction. The slits are curved in the circumferential direction along the radial direction, The fluid can rotate on the shaft as it passes through the slit.

Further, a coil is provided on the shaft, a magnetic body is provided to the second rotor blade, and a current can be generated in an electromagnetic induction manner by the relative rotation of the shaft and the second rotor blade.

The apparatus further includes at least one third rotor blade provided on the shaft at a position spaced apart from the first frame in the first direction and rotating on the shaft in accordance with the flow of fluid introduced into the first frame .

Further, a coil is provided on the shaft, a magnetic body is provided to the third rotor blade, and a current can be generated in an electromagnetic induction manner by the relative rotation of the shaft and the third rotor blade.

The third rotor blade may further include a plurality of blades, at least one auxiliary power generation module embedded in at least one of the plurality of blades, and generating current according to the flow of the fluid.

Further, an installation groove is formed in the vane, and the auxiliary power generation module is provided in the installation groove and includes a coil; And a fourth rotor blade provided on the support and including a magnetic body and rotating in accordance with the flow of the fluid, wherein current can be generated in an electromagnetic induction manner by the relative rotation of the support blade and the fourth rotor blade.

In addition, the support member is a rod member, and the fourth rotor blade is in the form of a hollow pipe that surrounds the support member. The rotor blade is provided with teeth that are continuous in the circumferential direction on the outer circumferential surface, and the teeth are extended to have a predetermined inclination with respect to the rotation axis .

The cover may further include a plurality of covers connected to the first frame and the second frame, respectively, extending in the longitudinal direction of the shaft, and partially covering the sides of the hydrostatic generator as a whole.

One side of the cover is connected to the outer peripheral surfaces of the first frame and the second frame, and the other side of the cover is spaced outward from the first frame and the second frame, And a convexly curved plate-like member inward of the second frame.

The cover may include a first portion corresponding to the first frame to the second frame in the longitudinal direction of the shaft; And a second portion extending from the second frame in the first direction, the second portion being smaller in area in the first direction and closer to the shaft.

According to the embodiments described herein, it is possible to provide a hydroelectric generator capable of generating electricity even in a place where there is no drop.

1 is a perspective view of a hydroelectric generator according to an embodiment.
2 is a perspective view of a hydroelectric generator according to another embodiment.
3 is a side view of the hydrostatic generator of FIG. 2;
4 is a perspective view of the frame of the hydraulic power generator of FIG. 2;
Fig. 5 is a perspective view showing the structures provided in the central portion of the hydro-electric generator of Fig. 2;
6 is a perspective view for explaining an auxiliary power generation module of the hydrostatic generator of FIG. 2;
7 is a perspective view of the auxiliary power generation module of the hydro-electric generator of FIG.
FIG. 8 is a perspective view illustrating a state where the fourth rotor blade is removed from the auxiliary power generation module of the hydrostatic generator of FIG. 2. FIG.
9 and 10 are views showing the flow of fluid in the hydrostatic generator of FIG.

Hereinafter, specific embodiments will be described in detail with reference to the accompanying drawings. In addition, if it is determined that a detailed description of a related known configuration or a known function can obscure the gist of the embodiments, a detailed description thereof will be omitted.

On the other hand, the singular expressions include plural expressions unless the context clearly indicates singular value. And, when a particular section is referred to as "comprising ", it means that the particular section may include other configurations other than the specific configuration, as long as there is no specially contradictory description.

1 is a perspective view of a hydroelectric power generator 100 according to an embodiment. The hydraulic power generator 100 according to the present embodiment may include a frame 110 and a rotor blade 120.

The frame 110 may be in the form of a multi-ring having a hollow portion formed therein. In the present embodiment, the frame 110 is an octagonal ring shape. However, in some cases, the number of sides such as a twelfth angle and a twelve angle may be larger, or a side angle, a hexagon angle, or the like may be smaller.

The rotor blades 120 may be provided on each side of the frame 110 in the form of a multi-ring. Each of the rotor blades 120 can rotate individually according to the flow of the fluid. For example, as shown, the rotor blades 120 may have a hollow pipe shape and may wrap around the frame 110. The teeth 121 continuous in the circumferential direction of the rotor blade 120 may be formed on the outer circumferential surface of the rotor blade 120. Accordingly, as the fluid impinges on the teeth 121, the rotor blades 120 can rotate on the frame 110.

As the frame 110 and the rotor blade 120 relatively rotate as described above, a current can be generated by an electromagnetic induction method. For example, the frame 110 may be provided with a coil, and the rotor blade 120 may be provided with a magnetic body. A magnetic field change occurs due to the relative rotation of the frame 110 and the rotor blade 120 and a current can be generated on the coil side of the frame 110 due to the change in the magnetic field. The frame 110 serves as a stator, and the rotor blade 120 can serve as a rotor.

On the other hand, since general configurations of various facilities related to electromagnetic induction, such as electric wires, control devices, current collectors, and the like are already well known, a description thereof will be omitted here.

According to the hydropower generator 100 according to the present embodiment described above, it is possible to smoothly generate power if there is only a slight flow of fluid without dropping. In addition, since each of the rotor blades 120 is disposed at various angles, the contact area with the fluid can be maximized and the maximum amount of current can be generated in comparison with the overall size and area of the hydrostatic generator 100. The flow of the fluid from the side of the frame 110 to the inside of the frame 110 (the hollow portion), the flow of the fluid from the side of the frame 110 , Partial flow, and the like. In addition, the rotational direction and the rotational speed of each of the rotor blades 120 may be different from each other when the rotor blades 120 operate individually, and each of the rotor blades 120 may be rotated with a small flow rate.

2 and 3 are a perspective view and a side view of the hydroelectric power generator 200 according to another embodiment. The hydrostatic power generator 200 according to the present embodiment includes a first frame 210, a second frame 215, a first rotor blade 220, a shaft 230, a second rotor blade 240, a third rotor blade 250 A secondary power generation module 260, and a cover 270.

The hydraulic power generator 200 according to the present embodiment may have a generally cylindrical shape, unlike the hydraulic power generator 100 described above with reference to FIG. Therefore, as will be described later, the fluid can be guided to pass through the inside of the hydrostatic generator 200 as a whole. However, in the present embodiment, the generation by the flow of the fluid from the side of the hydro-power generator 200, the generation by the flow of the fluid to the outside of the hydro-power generator 200, It is not.

4 is a perspective view of the frames 210 and 215 of the hydro-power generator 200 of FIG. The frames 210 and 215 will be described with reference to FIG. 4 in conjunction with FIG. 2 and FIG.

The first frame 210 and the second frame 215 may have a multi-ring shape in which a hollow portion is formed. In the present embodiment, the first frame 210 and the second frame 215 are illustrated as octagonal ring shapes. However, in some cases, the first frame 210 and the second frame 215 may have a larger number of sides such as a twelfth angle and a twelve angle, It is possible.

The first frame 210 may include a first reinforcing frame 211 having one end connected to one point of the first frame 210 and the other end opposing the one point It can be connected to another point. And a through hole 212 may be formed at a central point in the longitudinal direction.

Like the first frame 210, the second frame 215 may include a second reinforcing band 216, and a through hole 217 may be formed at a central point in the longitudinal direction of the second reinforcing band 216 have.

Meanwhile, the second frame 215 may be spaced apart from the first frame 210 in the first direction (reference to FIG. 3, x direction). The hollow portion of the first frame 210 and the hollow portion of the second frame 215 may be opposed to each other. In this state, the shaft 230 is uniformly passed through the through hole 212 of the first reinforcing base 211 and the through hole 217 of the second reinforcing base 216, and the first frame 210 and the second frame 215, Can be connected. As a result, the shaft 230 may be disposed at the center of the first frame 210 and the second frame 215, that is, at the center of the hydrostatic generator 200.

The first rotor blade 220 may be provided on each side of the first frame 210 and the second frame 215 in the form of a polygonal ring. Each of the first rotor blades 220 can rotate individually according to the flow of the fluid. For example, as shown, the first rotor blades 220 may have a hollow pipe shape and may wrap around the frames 210 and 215. The first rotor blades 220 may be formed on the outer circumferential surface thereof with serrations 221 continuous in the circumferential direction of the first rotor blades 220. Accordingly, as the fluid impinges on the teeth 221, the first rotor blades 220 can rotate on the frames 210 and 215.

As the frames 210 and 215 and the first rotor blades 220 are relatively rotated as described above, a current can be generated by an electromagnetic induction method. For example, the frames 210 and 215 may be provided with coils, and the first rotor blades 220 may be provided with a magnetic body. A magnetic field change occurs due to the relative rotation of the frames 210 and 215 and the first rotor blade 220 and a current may be generated on the coil side of the frames 210 and 215 due to the change of the magnetic field. The frames 210 and 215 serve as stator, and the first rotor blade 220 can serve as a rotor.

According to the hydropower generator 200 according to the present embodiment described above, it is possible to smoothly generate electricity when there is only a slight flow of fluid without dropping. In addition, since each first rotor blade 220 is disposed at various angles, the contact area with the fluid can be maximized to generate as much current as possible in comparison with the overall size and area of the hydrostatic generator 200. Flow of the fluid out of the frames 210 and 215 and flow to the inside of the frames 210 and 215 due to the polygonal arrangement of the first rotor blades 220, , 215, and a partial flow can be produced. In addition, the rotation direction and rotation speed of each first rotor blade 220 may be different from each other when each of the first rotor blades 220 is operated, and each of the first rotor blades 220 may be rotated with a small flow rate .

As will be described later, the fluid may be entirely introduced into the hydraulic power generator 200 from the first frame 210 side and may be discharged to the outside of the hydraulic power generator 200 while passing through the second frame 215. In this process, the first rotor blades 220 can rotate mainly toward the inside of the hydro-power generator 200. 3, if the diameter of the first frame 210 is larger than the diameter of the second frame 215, the flow velocity in the hydrostatic power generator 200 is increased to smooth the first rotor blade 220 more smoothly It can rotate.

5 is a perspective view showing the configurations provided in the central portion of the hydro-power generator 200 of FIG. 2 and 3 will be described with reference to the accompanying drawings.

The shaft 230 is integrally formed with the first frame 210 and the second frame 215 by passing through the through hole 212 of the first supporting frame 211 and the through hole 217 of the second supporting frame 216, ) Can be connected. And, as will be described later, the outer circumferential surface of the shaft 230 may be provided with a coil in whole or in part.

The second rotor blade 240 may be provided at one end (reference to FIG. 3, left end) of the shaft 230. Accordingly, the second rotor blade 240 can protrude outside the hydrostatic generator 200 and can be spaced apart from the first frame 210 in a second direction (-x direction in FIG. 3).

The second rotor blades 240 may induce fluid to flow into the interior of the hydraulic power generator 200, i.e., the first frame 210. For this purpose, the second rotor blade 240 may have a conical shape that becomes sharp toward the second direction. The fluid flows on the outer circumferential surface of the second rotor blade 240 and can pass through the interior of the first frame 210.

In addition, a plurality of slits 245 may be formed in the second rotor blade 240. Each of the slits 245 may be spaced from each other along the circumferential direction of the second rotor blade 240. The slits 245 may be curved in the circumferential direction along the radial direction of the second rotor blade 240. In other words, the slit 245 is not formed to extend in the radial direction of the second rotor blade 240, but may be curved toward the outer side. A part of the fluid can pass through the slit 245 and the slit 245 is curved so that the second rotor blade 240 can rotate on the shaft 230 according to the flow of the fluid.

On the other hand, a coil may be provided on the shaft 230, and a magnetic body may be provided on the second rotor blade 240. When the second rotor blade 240 rotates on the shaft 230 as described above, a current can be generated in an electromagnetic induction manner by the relative rotation of the second rotor blade 240 and the shaft 230.

The third rotor blade 250 may be disposed on the shaft 230 at least one. In the present embodiment, the number of the third rotor blades 250 is three. The third rotor blade 250 may include a plurality of blades 251 and may have the form of a fan as a whole. The third rotor blade 250 may include a plurality of blades 251, As shown in FIG. When the fluid flows into the hydraulic power generator 200, the third rotor blade 250 can rotate on the shaft 230. By the rotation of the third rotor blade 250, the fluid smoothly passes through the hydraulic generator 200 can do. In addition, due to the rotation of the third rotor blade 250, a part of the flow rate increase and flow change may occur in the hydrostatic power generator 200, which may also help rotation of the first rotor blade 220.

On the other hand, a coil may be provided on the shaft 230, and a magnetic body may be provided on the third rotor blade 250. When the third rotor blade 250 rotates on the shaft 230 as described above, a current can be generated in an electromagnetic induction manner by the relative rotation of the third rotor blade 250 and the shaft 230.

7 is a perspective view of the auxiliary power generation module 260. FIG. 8 is a perspective view of the auxiliary power generation module 260 of the hydraulic power generator 200 of FIG. And is a perspective view showing a state where the rotor blades 262 are removed. 6 shows a view of the shaft 230 and the third rotor 250 in a direction opposite to that of FIG. 2. As shown in FIG. Hereinafter, the auxiliary power generation module 260 will be described with reference to FIGS. 6 to 8 in conjunction with FIG. 2 and FIG.

The auxiliary power generation module 260 may be embedded in the third rotor blade 250. 6, an installation groove 252 may be formed on one side of the blade 251 of the third rotor blade 250, and the auxiliary power generation module 260 may be formed on the installation groove 252, As shown in FIG. The mounting groove 252 is formed on the side of the wing 251 and the one side of the wing 251 on the side of the first frame 210 is partly opened and communicates with the mounting groove 252, 260 are exposed to the fluid passing through the inside of the hydraulic power generator 200 (see FIG. 2).

The auxiliary power generation module 260 may include a support table 261, a fourth rotor blade 262, and a fixing table 263. [ The support member 261 may be a rod member and may be fixed within the blade 251 of the third rotor blade 250 through a fixing table 263 in the installation groove 252. The support 261 may be provided with a coil. The fourth rotor blade 262 may be in the form of a hollow pipe surrounding the supporter 261, and teeth may be formed on the outer peripheral surface in the circumferential direction. The teeth may have a predetermined inclination with respect to the rotation axis (the longitudinal direction of the support table 261), and the fourth rotor blade 262 may be shaped like a helical gear as a whole. The fourth rotor blade 262 may be provided with a magnetic body.

When the fluid flowing into the hydrostatic generator 200 flows in the longitudinal direction of the shaft 230, a part of the fluid impinges on the teeth of the fourth rotor blade 262 and the fourth rotor blade 262 rotates on the support pole 261 . The relative rotation of the support rods 261 and the fourth rotor blades 262 causes a change in the magnetic field so that a current may be generated on the support table 261 side. With this auxiliary power generation module 260, the energy of the fluid flow can be converted into electrical energy to the maximum extent.

Hereinafter, the cover 270 will be described with reference to FIGS. 2 and 3. FIG. The cover 270 may be provided at each side of the frames 210 and 215 and may be connected to the first frame 210 and the second frame 215 while extending in the longitudinal direction of the shaft 230. For example, the cover 270 may be a sheet-like member, one side of which may be connected to the outer circumferential surface of the frame 210, 215, and the other side thereof may be spaced outward from the frame 210, 215. That is, the one side may be fixed and the other side may be free.

In addition, the plurality of covers 270 can partially cover the side portion of the hydroelectric power generator 200 as a whole. Each of the covers 270 may be curved convexly inward of the frames 210 and 215 as described above.

With the above structure, the fluid introduced into the hydro-electric generator 200 can smoothly flow through the cover 270 as a guide. However, if the cover 270 completely covers the side of the hydro-power generator 200, the internal pressure of the hydro-power generator 200 may become excessively high and a vortex may be formed. In this embodiment, The sides are spaced outwardly from the frames 210 and 215 so as to partially cover the sides of the hydrostatic generator 200 such that a portion of the fluid introduced into the first frame 210 is located on the side of the hydrostatic generator 200, By being discharged through the cover 270, the pressure inside the hydrostatic power generator 200 can be appropriately adjusted and the formation of eddy currents can be prevented.

Meanwhile, the cover 270 may include a first portion 271 and a second portion 272. The first portion 271 may refer to a portion from the first frame 210 to the second frame 215 and the second portion 272 may extend from the second frame 215 in a first direction , x direction). At this time, the area of the second portion 272 becomes narrower toward the first direction, and can be made closer to the shaft 230 disposed at the center of the hydrostatic power generator 200. With this structure, the fluid flowing into the hydrostatic generator 200 can increase its velocity as it flows in the first direction, which can help smooth rotation of each of the rotor blades 220, 250, and 262.

9 and 10 are views showing the flow of fluid in the hydro-power generator 200 of FIG. For clarity of understanding, the cover 270 in FIG. 10 has been omitted from the illustration.

The fluid approaching the first frame 210 side of the hydrostatic generator 200 may be introduced into the hydrostatic power generator 200 by the second rotor blades 240. A part of the fluid can flow into the first frame 210 through the outer peripheral surface of the second rotor blade 240 and the rest can pass through the slit 245 of the second rotor blade 240. Thus, the second rotor blade 240 can rotate on the shaft 230, and the current can be generated by the relative rotation of the second rotor blade 240 and the shaft 230.

The fluid may rotate the first rotor blades 220 disposed on the respective sides of the first frame 210 while passing through the first frame 210. A current can be generated by the relative rotation of the first rotor blade 220 and the first frame 210.

It may be guided by the cover 270 passing through the first frame 210 and flow toward the second frame 215 side. In this process, a part of the fluid can be discharged to the outside of the hydro-power generator 200 through the first portions 271 of the cover 270, thereby controlling the pressure inside the hydro-power generator 200, .

The third rotor blade 250 can be rotated by the flow of the fluid and the current can be generated by the relative rotation of the third rotor blade 250 and the shaft 230. [ Further, it is possible to produce additional current by the auxiliary power generation module 260 built in the third rotor blade 250. [

The fluid can rotate the first rotor blades 220 disposed on the respective sides of the second frame 215 while passing through the second frame 215. A current can be generated by the relative rotation between the first rotor blade 220 and the second frame 215. At this time, the fluid can smoothly flow in the first direction by the rotation of the third rotor blade 250, and the first rotor blade 220 of the second frame 215 can rotate more smoothly. In FIG. 10, it can be confirmed that the fluid moves partially toward the first rotor blade 220 side of the second frame 215 due to the rotation of the third rotor blade 250.

The fluid that has passed through the second frame 215 can be discharged to the outside of the hydroelectric power generator 200. Some of which may be discharged to the side of the hydrostatic generator 200 through the second portion 272 of the cover 270. When the third rotor blade 250 is located on the shaft 230 in the first direction from the second frame 215 as in the present embodiment, the third rotor blade 250 and the auxiliary power generation module 260) can be made.

According to the embodiments described above, besides the above-mentioned effects, the following effects can also be expected.

The hydroelectric power generation using the dam is influenced by the flow rate and thus the efficiency is lowered when the amount of rainfall is small. However, the hydraulic power generator according to the above embodiments may not be greatly limited by the flow rate.

In addition, other hydroelectric generators, such as a dam system, adversely affect the ecosystem and the environment during the installation process, but the hydroelectric generators according to the above embodiments can be disposed simply in the water, so that they may not damage nature.

In the hydraulic power generator according to the above embodiments, since the rotor itself corresponding to the aberration corresponds to the rotor, the structure can be simplified, It can be free from installation space restriction problem, and can be advantageous in terms of installation cost and maintenance cost.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments, There may be various changes, modifications or substitutions in the drawings. For example, the configurations or features described together in the specific embodiments may be implemented in a distributed manner, and the configurations or features described in each of the different embodiments may be implemented in a combined manner. Likewise, the configurations or features described in each claim can also be implemented in a dispersed manner or in combination. And all such embodiments are to be regarded as falling within the scope of the present invention.

200: hydroelectric generator 210: first frame
211: first reinforcing bar 215: second frame
216: second bend bar 220: first rotor blade
230: shaft 240: second flywheel
245: Slit 250: Third rotor blade
260: auxiliary power generation module 270: cover

Claims (15)

delete delete A first frame in the form of a multi-ring comprising a coil;
A second frame including a coil and spaced apart from the first frame in a first direction and having a hollow portion facing the hollow portion of the first frame;
A shaft connecting the first frame and the second frame; And
And a plurality of first rotor blades provided on each side of the first frame and on each side of the second frame and including a magnetic body and rotating in accordance with a flow of the fluid,
A current is generated in an electromagnetic induction manner by the relative rotation of the first frame and the first rotor blade and the relative rotation of the second frame and the first rotor blade,
Wherein the first frame includes a first reinforcing base having one end connected to one point of the first frame and the other end connected to another point opposite to the one point and a through hole formed at a central point in the longitudinal direction,
Wherein the second frame includes a second reinforcing bar having one end connected to one point of the second frame and the other end connected to another point opposite to the one point and a through hole formed at a central point in the longitudinal direction,
Wherein the shaft is disposed at the center of the first frame and the second frame while penetrating the through hole of the first reinforcing bar and the through hole of the second reinforcing bar. delete The method of claim 3,
And a second rotor blade provided at one end of the shaft and spaced apart from the first frame in a second direction opposite to the first direction, for guiding fluid into the first frame. 6. The method of claim 5,
Wherein the second rotor blade has a plurality of slits spaced apart in the circumferential direction from each other, the slits being curved in the circumferential direction along the radial direction,
Wherein the second rotor blade rotates on the shaft as fluid passes through the slit. The method according to claim 6,
Wherein a coil is provided on the shaft and a magnetic body is provided to the second rotor blade so that a current is generated in an electromagnetic induction manner by the relative rotation of the shaft and the second rotor blade. The method of claim 3,
Further comprising at least one third rotor blade provided at a position spaced apart from the first frame in the first direction on the shaft and rotating on the shaft in accordance with a flow of fluid introduced into the first frame, . 9. The method of claim 8,
Wherein a coil is provided on the shaft and a magnetic body is provided to the third rotor blade to generate a current in an electromagnetic induction manner by the relative rotation of the shaft and the third rotor blade. 9. The method of claim 8,
Wherein the third rotor blade includes a plurality of blades,
Further comprising at least one auxiliary power generation module embedded in at least one of the plurality of blades and generating current in accordance with a flow of the fluid. 11. The method of claim 10,
The wing is provided with an installation groove,
The auxiliary power generation module includes:
A support table installed in the installation groove and including a coil; And
And a fourth rotor blade provided on the support and including a magnetic body and rotating in accordance with the flow of the fluid,
And a current is generated in an electromagnetic induction manner by the relative rotation of the support stand and the fourth rotor blade. 12. The method of claim 11,
The support is a bar member,
Wherein the fourth rotor blade is in the form of a hollow pipe surrounding the support, the rotor blade being formed with teeth which are continuous in the circumferential direction on the outer circumferential surface, the teeth being extended to have a predetermined inclination with respect to the rotation axis. The method of claim 3,
Further comprising a plurality of covers connected to the first frame and the second frame, respectively, extending in the longitudinal direction of the shaft, and partially covering the sides of the hydro-generator as a whole. 14. The method of claim 13,
Wherein one side portion of the cover is connected to the outer circumferential surfaces of the first frame and the second frame and the other side portion of the cover is outwardly spaced from the first frame and the second frame,
Wherein the cover is a plate-like member convexly curved inward of the first frame and the second frame. 14. The method of claim 13,
The cover
A first portion corresponding to the first frame to the second frame in the longitudinal direction of the shaft; And
And a second portion extending from the second frame in the first direction,
Wherein the second portion is smaller in area in the first direction and closer to the shaft.

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