WO2023003162A1

WO2023003162A1 - Modular power generation device having screw structure

Info

Publication number: WO2023003162A1
Application number: PCT/KR2022/007685
Authority: WO
Inventors: 정민시
Original assignee: 정민시
Priority date: 2021-07-19
Filing date: 2022-05-30
Publication date: 2023-01-26

Abstract

The present invention relates to a modular power generation device. The modular power generation device of the present invention comprises: a rotating shaft having a hollow portion formed therein; a rotation part including a helical blade unit formed around the rotating shaft while surrounding the rotating shaft at least once; a fixed shaft extending through the hollow portion of the rotation shaft; a power transmission part for transmitting the rotational force of the rotating part; and a power-generation part for receiving the rotational force of the rotating part from the power transmission part and converting the rotational force into electrical energy. The modular power-generation device has a screw structure in which one or both ends of the fixed shaft are connected to at least one of a moving means and a fixing means and are inclined at a predetermined angle, so that power generation efficiency is improved.

Description

Modular power generation device with screw structure

The present invention relates to a modular power generation device having a screw structure, and more particularly, to a modular power generation device having a screw structure that rotates and generates power by wind power or water flow rate.

A power generation device that generates electricity using a fluid such as water or wind generally includes a turbine unit generating rotational force by the inflow of fluid and a power generation unit generating electricity using rotational force generated from the turbine unit. The turbine unit is rotated by the inflow of fluid, the rotation shaft connected to the turbine unit is rotated, and then the rotor of the power generation unit connected to the rotation shaft rotates together with the rotation shaft to generate electricity.

As an example of such a fluid power generation device, Korean Patent Registration No. 10-2234895 discloses a power generation device that generates power by installing screw-type blades in water as a rotating material and rotating the screw-type blades by the flow rate.

In the power generation device disclosed in the above document, as shown in FIG. 1, a support structure (S′) is installed with respect to the support surface, and at least one rotation shaft (10′) is provided in the support structure (S′), and the The rotational shaft 10' is provided with a screw-type blade 20' radially to rotate by the fluid, and the rotational shaft 10 to realize rotation by the fluid resistance deviation between one side and the other side with respect to the rotational shaft 10' from the fluid flow. ') is installed obliquely, and the rotational force of the rotary shaft 10' or the screw-type blade 20' is transmitted to the power generation device 40' by the power transmission means 30', and the support structure (S') The inside is hollow so that a support pillar can be inserted so that the support structure S' is rotatable, and at least one reinforcing rod 50' is formed to support the rotation shaft 10'.

However, this power generation device has problems in that the wings 22' of the screw-type blades 20' are exposed on the surface of the water and do not properly use the ocean current, and the support structure S' and the reinforcing rod 50' There is a problem in that various floating foreign substances (nets, fishing nets, ropes, etc.) are caught, reducing power generation efficiency, or causing failure of power generation devices.

In addition, as shown in FIG. 1, the conventional power generation device has a problem in that the rotational axis of the generator is not provided in parallel with the rotational axis of the screw, so that a separate power connection means for transmitting the rotational power of the screw is required, resulting in a complicated structure. there was.

An object of the present invention is to provide a power generation device that can be formed in a simple structure by integrally fixing a rotating part rotating by the flow rate on one axis and a power generating part generating electricity with rotational power transmitted from the rotating part. .

In addition, another object of the present invention is to provide a power generation device capable of generating power with excellent power generation efficiency even in a variable environment in which flow speed changes, such as in a vortex, and capable of being installed in various environments.

In addition, the present invention is to provide a power generation device capable of preventing the inflow of foreign substances into rotating screw-type blades during power generation, thereby reducing power generation efficiency, and at the same time preventing the failure of the device due to the inflow of foreign substances.

In order to achieve the above object, the modular power generation device of the present invention includes a rotary shaft 110 having a hollow 111 formed therein, and a spiral blade unit 120 formed to surround the rotary shaft 110 for one or more rotations. Rotating unit 100 comprising; A fixed shaft 200 penetrating the hollow 111 of the rotating shaft 110; A power transmission unit 300 that transmits rotational force of the rotation unit 100; And a power generation unit 400 that receives the rotational force of the rotation unit 100 from the power transmission unit 300 and converts it into electrical energy, and one or both ends of the fixed shaft 200 is a moving means 10 or It is connected to any one of the fixing means 20 and is characterized in that it is provided inclined at a predetermined angle.

In addition, the power transmission unit 300 is connected to the drive gear 310 coupled to the rotation shaft 110 and rotating together with the rotation shaft, and connected to the drive shaft 410 of the power generation unit 400 to drive the drive gear 310 It may include a driven gear 320 that rotates in engagement with.

In addition, the fixing means 20 is a combination of a housing 21 providing a space in which the power generation unit 400 and the power transmission unit 300 are accommodated, and fixing the housing 21 to the fixing surface 1 A first opening 21b through which the rotating shaft 110 passes may be formed in the housing 21 .

In addition, the housing 21 is formed with a second opening 21c through which the end of the fixed shaft 200 passes, and the second opening 21c is disposed to face the first opening 21b, The fixed shaft 200 passes through the housing 21 and is coupled so that its end is exposed to the outside through the second opening 21c and is fixed to the housing 21 at the same time, and the first opening 21b is the rotating shaft 110 ) can be rotatably penetrated.

In addition, the blade unit 120 may be provided with a converging portion 120b in which the rotation radius of the blade 121 gradually decreases to one side or both sides of the rotation shaft 110 so that the blade end converges on the outer circumferential surface of the rotation shaft.

In addition, in the power generation unit 400, the rotational force of the rotation unit 100 is transmitted to the power generation module 420 by the driving shaft 410, and the power generation module 420 passes through the rotation shaft 110 to form a fixed shaft 200. ) It can be fixed to the connecting member 430 directly connected to.

And, the drive shaft 410 may be provided parallel to the longitudinal direction of the rotation shaft 110 .

Features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

According to the present invention, the power generation device of the present invention has a simple structure in which a rotating part rotating by the flow rate of a fluid such as seawater or wind and a power generating part generating electricity by the rotational power of the rotating part are integrally fixed to one shaft. As it can be, installation and maintenance work is easy, and there is an effect of minimizing cost and time for installation and maintenance.

In addition, in the present invention, the inclination angle of the rotating part is varied according to environmental conditions such as flow rate and water level, so that the rotating part forming rotational power can be always disposed in an inclined state in a state provided to use the fluid, and the water level or flow speed Even if it is installed at this variable position, the amount of power generation of the generator can be maximized by determining the direction of the rotation shaft corresponding to changes in wind direction, tidal current and ocean current.

Furthermore, according to the present invention, as a housing for preventing the inflow of foreign substances is further provided, it is possible to prevent foreign substances from entering the power generation unit that generates electricity by receiving rotational force, and malfunction of the device caused by the inflow of foreign substances can prevent

In addition, the present invention has a structure that induces various foreign substances (rope, net, fishing net, etc.) floating in the water to be discharged to the outside naturally by the rotational operation of the rotating part even if foreign substances are introduced into the rotating part for power generation. , it is possible to fundamentally prevent deterioration in power generation efficiency due to foreign substances.

1 is a perspective view showing a modular power generation device according to the prior art.

Figure 2 shows the shape of the modular power generation device of the present invention.

Figure 3 shows in detail the shape of the power generation unit and power transmission unit of the modular power generation device of the present invention.

Figure 4 shows in detail the shape of the modular power generation device to which the fixing means is connected according to an embodiment of the present invention.

5 schematically illustrates the shape of a blade unit according to various embodiments of the present invention.

Figure 6 shows a state in which the fixed shaft of the modular power generation device of the present invention is fixed to the pier by a fixing means.

7 is a plan view showing a state in which a fixed shaft of the modular power generation device of the present invention is connected to a fixing means and rotates in a two-axis direction.

Figure 8 is a side view showing a state in which the fixed shaft of the modular power generation device of the present invention is connected to the fixing means and rotates in a two-axis direction.

9 is a plan view showing a state in which a fixed shaft of the modular power generation device of the present invention is connected to a fixing means to perform a three-dimensional rotational motion.

10 is a side view showing a state in which a fixed shaft of the modular power generation device of the present invention is connected to a fixing means to perform a three-dimensional rotational motion.

Figure 11 shows a state in which the fixed shaft of the modular power generation device of the present invention is connected to the flow table, which is a flow means.

12 shows a state in which the fixed shaft of the modular power generation device of the present invention is connected to a weight, which is a floating means.

Figure 13 shows the shape of the blade unit of the present invention according to an embodiment of the present invention.

14 shows a cross-sectional shape of a blade unit according to an embodiment of the present invention.

15 illustrates the shape of a blade unit of a modular power generation device according to an embodiment of the present invention.

16 shows a modular power generation device according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following examples do not limit the scope of the present invention, but are merely illustrative of the components presented in the claims of the present invention, are included in the technical spirit throughout the specification of the present invention, and constitute the claims. Embodiments including elements that can be replaced as equivalents in elements may be included in the scope of the present invention.

The fluid in the present invention is defined as including various media forming wind, seawater, river water, and other flows. Figure 2 shows the shape of a modular power generation device according to an embodiment of the present invention, showing a form submerged in water, but it can be installed on the ground, of course.

Referring to FIG. 2, the power generation device of the present invention includes a rotary shaft 110 having a hollow 111 therein, and a spiral blade unit 120 formed around the rotary shaft while surrounding the rotary shaft at least once. 100, a fixed shaft 200 passing through the hollow 111 of the rotating shaft, a power transmission unit 300 that transmits rotational force of the rotation unit 100, and a rotation unit from the power transmission unit 300 ( 100) includes a power generation unit 400 that receives rotational force and converts it into electrical energy. At this time, one end or both ends of the fixing shaft 200 is connected to at least one of the floating means 10 and the fixing means 20, and is inclined at a predetermined angle.

In particular, in the embodiment in which the fixing shaft 200 is fixed to the fixing means 20, when the fixing means 20 is a building or civil structure, a structure such as a foundation or a column formed in the civil structure is fixed to the fixing shaft 200. ), a separate construction procedure can be omitted.

The modular power generation device of the present invention configured as described above may be installed in water so that the rotating shaft 110 is submerged, or installed in a position capable of receiving sufficient wind to generate power. At this time, the blade unit 120 receives lift and drag due to wind power, underwater current, current, etc., and the rotating shaft 110 rotates.

In addition, it is preferable that the longitudinal direction of the rotating shaft 110 and the longitudinal direction of the fixed shaft 200 are provided to coincide, so that the rotating shaft and the fixed shaft are positioned on the same line. As the rotating shaft 110 has a structure that rotates around the fixed shaft 200, its structure is simplified, so that installation and maintenance are easy.

In addition, the moving means 10 or the fixing means 20 is for imparting tension to the fixing shaft 200 . As shown in FIG. 2 , the floating means 10 may be defined as a configuration in which a relative position is movably formed on the water surface 2 in a state connected to the fixed shaft 200 . However, the floating means 10 is not limited thereto and may be formed to be movable in a relative position underwater. At this time, the fixing means 20 is defined as a configuration in which the relative position is fixed by being rigidly fixed to the fixing surface 1.

Since the power generation device connected to the flow means 10 can naturally set the inclination angle of the rotating part 100 to match the flow rate by the vector sum according to the movement of the flow means 10 and the flow of the fluid, the flow speed and the flow of the fluid In an environment where the direction changes, there is an effect that enables power generation with maximum efficiency.

In addition, the fixing means 20 is formed to fix one or both ends of the fixing shaft to the fixing surface 1 so that the modular power generation device of the present invention can receive fluid resistance without being swept away by the flow. At this time, the fixing surface 1 may be an object that does not move, such as a seabed or a rock, or an outer surface of an object.

On the other hand, as shown in FIG. 16, the floating means 10 includes a weight 11 acting by gravity, a buoyancy body 12 acting by buoyancy, other moving means 10 or fixing means 20 It may be one of the fluids 13 capable of relative movement based on , and may be selectively applied depending on site conditions and purposes. In addition, the buoyancy body 12 is a water surface buoyancy body for forming an inclination angle of the rotation shaft 110 by the change in water level and the flow rate, an underwater buoyancy body installed in water and determining the inclination angle of the rotation shaft 110 by the flow rate, From the fluid resistance force applied to the rotating shaft 110, it may include a fixed buoyancy body in which the buoyancy body 12 is fixedly coupled to the other end in a state in which one end of the fixed shaft 200 is obliquely fixed to the fixed surface.

As shown, the flow means 10 and the fixing means 20 are described as being directly coupled to the top of the fixing shaft 200, but the present invention is not limited thereto, and ropes, chains, connecting rods, rods It may be indirectly coupled to the upper end of the fixed shaft 200 by providing a fluid 13 (not shown) such as the like.

As described above, even if the modular power generation device having a structure in which a floating means is connected is installed in the offshore where the water level is variable or in a highland where the wind is changed, the rotating shaft 110 and the fixed shaft 200 are rotated according to the water level or wind direction. The inclination angle is variable so that the rotating shaft 110 and the fixed shaft 200 are always arranged in an inclined state, and the direction of the rotating shaft can be determined in accordance with changes in wind direction, ocean current or tidal current. Therefore, the modular power generation device of the present invention having the above-described structure has an effect of maximizing the power generation amount of the power generation device using wind, ocean current, or tidal current.

On the other hand, when placing the floating body 12 on the water surface as the floating means 10, it is preferable to select the length of the fixed shaft 200 so that the inclination of the rotating shaft 110 to the flow rate does not deviate from 30 to 60 degrees Do. And when the floating body 12 is placed in water, the size of the buoyancy of the floating body 12 is selected so that the inclination of the rotating shaft 110 does not deviate from 30 degrees to 60 degrees due to the flow speed in consideration of the flow speed of the installation area. It is preferable to enable injection or discharge so that the buoyancy can be adjusted.

Attached Figure 3 shows in detail the shape of the power generation unit and power transmission unit of the modular power generation device of the present invention.

Referring to FIG. 3 , the power generation unit 400 includes a power generation module 420 connected to a fixed shaft 200, a drive shaft 410 for transmitting rotational force of the rotating unit 100 to the power generation module 120, and the The power generation module 120 includes a connecting member 430 for fixing the position of the power generation module so that it is spaced apart from the fixed shaft 200 by a predetermined distance, and the longitudinal direction of the driving shaft 410 is the longitudinal direction of the rotating shaft 110. are provided side by side with

Therefore, the power generation device of the present invention is provided with a driving shaft 410 and a rotating shaft 110 side by side, unlike conventional power generation devices, separate power connecting means for transmitting the power of the rotating rotating unit 100 to the power generation unit 400. Since it does not require, it can be formed with a simple structure.

In addition, the power transmission unit 300 includes a drive gear 310 coupled to the rotation shaft 110 and rotating together with the rotation shaft, and a driven gear connected to the drive shaft 410 and engaged with the drive gear 310 to rotate. (320). The power generation unit 400 is preferably provided at a portion of the fixed shaft 200 adjacent to the driving gear 310 .

According to the structure described above, when the rotating shaft 110 and the blade 120 are rotated by wind, ocean current, or tidal current, the drive gear 310 rotates, and the drive gear 310 rotates the drive gear 310. The gear 320 is rotated in reverse, the drive shaft 410 is rotated in reverse by the driven gear 320, and rotational force in the reverse direction is transmitted to the power generation unit 420 by the drive shaft 410 to generate power. Unit 420 generates electricity.

In FIGS. 2 and 3, the power transmission unit and the power generation unit are shown as being disposed at the lower end (one end) of the rotating unit 100 for convenience, but are not limited thereto and provided at both ends or upper end (other end) of the rotating unit 100. It could be.

According to one embodiment, the connecting member 430 may be welded or fitted to the fixed shaft 200 to fix the power generation module 420, and the connecting member 430 is in the longitudinal direction of the fixed shaft. It is preferable that it is formed extending so as to be perpendicular to and.

Attached Figure 4 shows in detail the shape of the modular power generation device to which the fixing means is connected according to an embodiment of the present invention.

Referring to FIG. 4, the fixing means 20 includes a housing 21 providing a space in which the power generation unit 400 and the power transmission unit 300 are accommodated, and fixing the housing to the fixing surface 1. It includes a coupling means (22). The housing 21 is formed with a fixing part 21a to which the coupling means 22 is coupled, and a first opening 21b through which the rotating shaft 110 passes. The fixing part 21a may be provided at the lower end of the housing 21 as shown in FIG. 4, but the position of the fixing part 21a is not limited thereto. According to one embodiment, the fixing part 21a may be formed on the side of the housing to have a structure suitable for the installation environment.

According to the present invention, since the power generation unit 400 and the power transmission unit 300 are not exposed to the outside by the housing 21, malfunction due to intrusion of foreign substances can be prevented. In addition, a phenomenon in which foreign substances such as ropes, nets, and fishing nets are caught in the power generation unit 400 and the power transmission unit 300 to stop power generation can also be fundamentally prevented.

In addition, the housing 21 may have one of a dome shape, an aspherical shape, a hemisphere shape, a spherical shape, and a polygonal shape, but is preferably formed to have a curved surface to be advantageous in preventing foreign matter from being caught. In addition, the first opening may have a circular or long hole shape, but is not limited thereto, and the first opening may be formed in various shapes in which an operation slope of the rotating shaft 110 may be secured or a structure that guarantees rotation of the rotating shaft 110. there is.

In another embodiment, the housing 21 is formed of a flexible material within a range where the rotation of the rotation shaft 110 is not restricted, and the shape is flexibly deformed by the flow of the fluid, resulting in the shape of the housing 21 It is desirable to minimize the resulting fluid resistance.

Attached Figure 5 schematically illustrates the shape of a blade unit according to various embodiments of the present invention.

Referring to FIG. 5 , the rotating shaft 110 includes a first area where the blade unit 120 is formed and a second area where no blade unit is formed at one or both ends of the rotating shaft. According to the embodiment, in the blade unit, as shown in (a) of FIG. 5 , the second area may be formed at both ends of the rotating shaft and the first area may be formed at the center of the rotating shaft. In addition, as shown in (b) of FIG. 5 , the second region may be formed at the lower end of the rotation shaft, and the first region may be formed at the rest of the region except for the lower end. In addition, as shown in (c) of FIG. 5 , the second region may be formed at an upper end of the rotating shaft, and the first region may be formed at the remaining regions except for the upper end.

Referring to FIGS. 4 and 5, in order to prevent a phenomenon in which the rotational force decreases due to collision or friction between the blade unit 120 rotating together with the rotating shaft 110 by the flow rate, the The fixing means 20 is preferably provided so as to be located in the vicinity of the second region provided at one or both ends of the rotating shaft. In addition, as described above, when the fixing means 20 is provided near the second area of the rotating shaft, it is preferable that a part of the second area of the rotating shaft rotatably penetrates the first opening.

Hereinafter, embodiments in which one or both ends of the modular power generation device of the present invention are connected to the fixing means will be described using the attached FIGS. 6 to 10.

First, Figure 6 shows a state in which the fixed shaft of the modular power plant of the present invention is fixed to the pier by a fixing means. As shown in FIG. 6, the fixing means 20 according to an embodiment can be completely fixed so that the fixing shaft 200 forms a specific angle with the pier bridge that is the fixing surface 1. That is, the fixing means 20 may be a fixing table, which is a structural member of a civil engineering structure, in which the fixing shaft 200 forms a specific angle with the fixing surface 1.

In order to stably fix the housing 21 of the fixing means 20 to the fixing surface 1 in the above embodiment, the predetermined area 21' of the outer surface of the housing in contact with the fixing surface 1 is It may have a corresponding shape so as to be stably fixed to the fixing surface (1). For example, the fixing surface 1 may be a pier as shown.

However, the fixing surface 1 is not limited thereto, and may be a surface whose position is fixed, such as a rock or a seabed. Alternatively, the fixing surface 1 may be defined as an outer circumferential surface of an object to be fixed. For example, as shown in FIG. 12, the fixed surface may be a surface that moves in position, such as a lower outer circumferential surface of a hull or a lower outer circumferential surface of a boat.

7 and 8 are a plan view and a side view showing a state in which the fixed shaft of the modular power generation device of the present invention is connected to the fixing means and rotates in a two-axis direction.

According to the embodiment, the fixing means 20, as shown in FIGS. 7 and 8, the fixed axis 200 is formed at a predetermined angle in an arbitrary plane (xy plane or yz plane or zx plane) formed between the two axes It can be fixed to the fixed surface (1) so that it can perform rotational movement with That is, the fixed shaft 200 and the rotating part 100 perform a rotational movement left and right or back and forth to respond to changes in flow rate and water depth, and the inclination angle may be changed.

According to the embodiment, the fixed shaft 200 may perform a rotational motion at a predetermined angle in the xy plane as shown in FIG. 7 .

For example, as shown in FIG. 8, the fixed shaft 200 is fixed to the fixed surface 1 so as to perform a rotational motion at a predetermined angle in the xz plane. At this time, it is preferable that the first opening 21b is formed in a long hole shape along the operating inclination of the fixed shaft 200 and the rotating part 100 .

9 and 10 are a plan view and a side view showing a state in which the fixed shaft of the modular power generation device of the present invention is connected to the fixing means to perform a three-dimensional rotational motion.

Referring to FIGS. 9 and 10 , the fixing means 20 may be fixed to the fixing surface 1 so that the fixing shaft 200 can perform a three-dimensional rotational motion at a predetermined angle. That is, the fixed shaft 200 and the rotation unit 100 perform a rotational movement in all directions in all directions in order to respond to changes in flow speed and depth of artificial water, and the inclination angle may be changed. To this end, as shown in FIG. 10, a ball portion is formed at the lower end of the fixing shaft 20, and a viewing portion surrounding it is formed on the fixing means 200 to flexibly adjust the angle according to the flow of the fluid. can

As described above, the length of the first opening 21b of the fixing means 20 preferably has a diameter that can sufficiently accommodate the operating inclination of the rotating shaft, but according to one embodiment, the first opening 21b The operating inclination of the fixed shaft 200 and the rotating part 100 may be limited by the. In addition, when the fixed shaft 200 performs a three-dimensional rotational motion, as the inner diameter of the first opening 21b increases, the operating inclination of the fixed shaft 200 and the rotating part 100 can be sufficiently secured.

Attached FIG. 11 shows a state in which the fixed shaft 200 of the modular power generation device of the present invention is connected to the fluid 13, which is the fluid means 10.

Referring to FIGS. 11 and 16 , the fluid means 10 connected to the fixed shaft 200 may be a fluid body 13 . The fluid 13 is defined as a configuration in which the relative position of the fixed shaft 200 is movable by combining the fixed surface 1 and the fixed shaft 200 using auxiliary connecting means such as ropes, chains, connecting rods, rods, rings, etc. do. In addition, at this time, the position of the fixing surface 1 is different from each other or the length of the rope is different from each other so that the rotation shaft is formed inclined from the direction of the flow speed, so that the rotation shaft corresponds to the flow of the flow speed obliquely.

In the above embodiment, in order to prevent the blade unit 120 from touching the ground, it is preferable to couple a buoyancy body to both ends of the fixed shaft 200 or to put a buoyancy function on the blade unit so that the entire modular power generation device floats. . In addition, in the above embodiment, it is preferable that the housing 21 is formed in a spherical shape so that the inner space of the housing 21 is separated from the outer space.

In the above embodiment, the housing 21 may further include a second opening 21c through which an end of the fixing shaft 200 passes. At this time, the second opening 21c or a part of the inside of the housing 21 is structurally coupled to be fixed to the fixed shaft 200, and the first opening into which the rotating shaft 110 is inserted minimizes rotational friction with the rotating shaft 110. It is desirable that it is formed so as to be. As the second opening 21c is arranged to face the first opening 21b, the fixed shaft 200 penetrates the housing and the end of the fixed shaft is exposed to the outside through the second opening 21c. , A part of the housing is coupled to be fixed to the fixed shaft, and the first opening 21b is penetrated so that the rotation shaft 110 can rotate.

Attached Figure 12 shows a state in which one end of the fixed shaft 200 of the modular power generation device of the present invention is connected to the weight 11, which is a floating means, at the other end in a state fixed to the ship. Depending on the embodiment, the flow means 10 may be a weight 11 such that the inclination angle of the rotational shaft 110 is formed by gravity and flow velocity by mass, as shown in FIG. 12 . That is, as shown in the drawing, in the generator of the present invention, a weight, which is a flow means, is connected to one end of the rotating shaft, so that the inclination angle and direction can be adjusted in response to the flow direction of the fluid.

For example, the fixed shaft 200 located near one end of the rotary shaft 100 includes a fluid 13 whose length can be adjusted together with or in place of the weight 11 shown above, such as a rope, chain, The angle of the rotating shaft 110 can be arbitrarily adjusted by connecting a connecting rod, a rod, or the like, or the modular power generation device can be raised to the water surface to facilitate maintenance and repair work when performing maintenance and repair work on the rotary unit 100. there is.

Attached Figure 13 shows the shape of the blade unit of the present invention according to an embodiment of the present invention.

The blade unit 120 is formed in a shape surrounding the rotating shaft 110 clockwise and/or counterclockwise, and may have a constant helix angle (HA). In this case, the blade unit 120 may be composed of one blade as shown in (a) of FIG. 13 or two or more blades as shown in (b) of FIG. 13 . That is, the blade unit 120 includes two or more blades 121 surrounding the rotating shaft 110 in the same direction (clockwise or counterclockwise direction) and may have a double helical shape or a multi-helical shape. At this time, it is preferable that the plurality of blades 121 have the same pitch (P) and helix angle (HA).

According to the embodiment, each of the blades 121 preferably has a constant helix angle HA in order to increase rotational force. In addition, in the embodiment shown in (b) of FIG. 13, when there are two blades, the distance (W) between adjacent blades is larger than 1.4 times and smaller than 2.0 times the radius of rotation (d) of each blade. It is desirable to configure However, the distance (W) between the blades is not limited thereto, and may be determined in consideration of the installation space environment and the aberration efficiency of passing foreign substances or floating objects floating in water.

In addition, in order to maximize the amount of power generation, the inclination of the rotating shaft 110 is greater than the helis angle HA formed at the end of the blade unit 120, and the pitch angle PA defined in FIG. It is preferable to be formed smaller than the angle connecting the ends of the 180 degree position of the immediately adjacent blade wing).

14 shows a cross-sectional shape of a blade unit according to an embodiment of the present invention. First, FIG. 14 (a) is a side view showing the shape of the blade unit, and FIG. 14 (b) is a cross-sectional view showing the cross-sectional shape of the blade unit shown in FIG. 14 (a).

Referring to FIG. 14 , the blade unit 120 may have a double helix structure including two blades 121-1 and 121-2. As shown in FIG. 14 , the blades 121-1 and 121-2 may be formed separately from the rotating shaft 110 and connected to the outer circumferential surface of the rotating shaft 110 by welding.

In addition, a coupling groove 110a, which is a spiral path, is concavely formed on the outer circumferential surface of the rotating shaft 110, and the blade is formed at an inner end 121a in contact with the outer circumferential surface of the rotating shaft 110 and in a direction opposite to the inner end. It includes an outer end 121b facing the outside, but a coupling protrusion 121a-1 is protruded from the inner end 121a in a shape corresponding to the coupling groove so that the coupling protrusion 121a-1 is formed in the coupling groove. (110a) may be firmly bound, and conversely, a coupling protrusion may be disposed on the rotating shaft 110 and a coupling groove may be disposed on the blade. That is, the blade and the rotating shaft 110 may be fitted. The connection method between the blade and the rotating shaft 110 is not limited to the description.

15 attached shows the shape of a blade unit of a modular power generation device according to an embodiment of the present invention.

13 and 14, the blades of the blade unit are shown extending with the same radius (d) along the axial direction of the rotation shaft, but the present invention is not limited thereto, and ropes, nets, In order to prevent various floating objects such as fishing nets and foreign substances from being caught, as shown in FIG. The rotation radius of the blade 121 is gradually reduced to one side or both sides of the blade 121 may be provided with a convergence portion 120b converging on the outer circumferential surface of the rotation shaft. That is, the radius d2 of the blade 121 located near one side or both sides of the rotation shaft 110 is smaller than the radius d1 of the blade 121 located at the center of the rotation shaft. The transfer area 120a may be defined as the remaining area of the blade unit excluding the convergence part. In addition, the radius of rotation of the transfer area 120a is not limited to the above description, and may be increased or decreased.

According to the structure of the blade unit according to the above embodiment, the foreign substances introduced into the transfer area 120a are transferred along the valley of the blade unit in the transfer area 120a when the rotating part rotates due to the flow rate, and the convergence part (120b) is guided in the direction formed, it can be discharged to the outside again through the convergence portion (120b).

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, the present invention is not limited thereto, and within the technical spirit of the present invention, by those skilled in the art It is clear that modifications and improvements are possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

[Description of code]

1: Fixed side 2: Sleep

10: floating means 20: fixed means

21: housing 22: coupling means

100: rotation part 110: rotation axis

120: blade unit 121: blade

200: fixed shaft 300: power transmission unit

310: drive gear 320: driven gear

400: power generation unit 410: drive shaft

420: power generation module 430: connection member

Claims

Rotation unit 100 including a rotary shaft 110 having a hollow 111 therein, and a spiral blade unit 120 formed to surround the rotary shaft 110 one or more times;

A fixed shaft 200 penetrating the hollow 111 of the rotating shaft 110;

A power transmission unit 300 that transmits rotational force of the rotation unit 100; and

A power generation unit 400 that receives the rotational force of the rotation unit 100 from the power transmission unit 300 and converts it into electrical energy; includes,

One end or both ends of the fixed shaft 200 is connected to any one of the moving means 10 or the fixing means 20, and a modular power generation device having a screw structure, characterized in that provided inclined at a predetermined angle.
According to claim 1,

The power transmission unit 300 includes a drive gear 310 coupled to the rotation shaft 110 and rotating together with the rotation shaft;

A modular power generation device having a screw structure, characterized in that it comprises a driven gear 320 connected to the driving shaft 410 of the power generation unit 400 and rotating in engagement with the drive gear 310.
According to claim 1,

The fixing means 20 includes a housing 21 providing a space in which the power generation unit 400 and the power transmission unit 300 are accommodated;

Including a coupling means 22 for fixing the housing 21 to the fixing surface 1,

A modular power generation device having a screw structure, characterized in that the housing 21 is formed with a first opening 21b through which the rotating shaft 110 passes.
According to claim 3,

The housing 21 is formed with a second opening 21c through which an end of the fixing shaft 200 passes.

As the second opening 21c is arranged to face the first opening 21b, the fixing shaft 200 passes through the housing 21 and the end is exposed to the outside through the second opening 21c. At the same time, it is coupled to be fixed to the housing 21, and the first opening 21b is a modular power generation device having a screw structure, characterized in that the rotation shaft 110 is rotatably penetrated.
According to claim 1,

The blade unit 120 is a screw, characterized in that the rotation radius of the blade 121 is gradually reduced to one side or both sides of the rotation shaft 110, the blade end is provided with a convergence portion (120b) converging on the outer circumferential surface of the rotation shaft A modular power plant with a structure.
According to claim 1,

In the power generation unit 400, the rotational force of the rotation unit 100 is transmitted to the power generation module 420 by the drive shaft 410, and the power generation module 420 passes through the rotation shaft 110 to the fixed shaft 200. Modular power generation device having a screw structure, characterized in that fixed to the connecting member 430 that is directly connected.
According to claim 6,

The drive shaft 410 is a modular power generation device having a screw structure, characterized in that provided in parallel with the longitudinal direction of the rotating shaft (110).