CN113518859A

CN113518859A - Fluid power generator and power generation system comprising same

Info

Publication number: CN113518859A
Application number: CN202080018849.5A
Authority: CN
Inventors: 朴焌圭
Original assignee: Pu Jungui
Current assignee: Pu Jungui
Priority date: 2019-03-05
Filing date: 2020-03-03
Publication date: 2021-10-19
Also published as: KR102198381B1; KR20200106805A

Abstract

The present invention is directed to solving the above-mentioned problems, and an object thereof is to provide a fluid dynamic power generator capable of improving power generation efficiency by effectively using drag force of wind without increasing the size of a blade, and a power generation system including the same. The fluid dynamic generator according to the invention comprises: an ascending air flow forming body provided on the rotary shaft; a plurality of spiral blades formed spirally along an outer peripheral surface of the ascending airflow forming body; and a generator that generates electric power by rotation of the ascending airflow forming body.

Description

Fluid power generator and power generation system comprising same

Technical Field

The present disclosure relates to a fluid power generator, and more particularly, to a fluid power generator that can efficiently generate electric power even in weak wind, and a power generation system including the same.

Background

Generally, wind power generation is a power generation method in which a wind turbine is rotated by natural wind, and an acceleration force of the rotating wind turbine is transmitted to a generator through a mechanical transmission device such as a gear.

In this case, only 59.3% of the wind energy can be theoretically converted into electric energy by the blade, but only 20% -40% of the wind energy is actually used as electric energy when considering efficiency according to the blade shape, power generation efficiency, and the like, and mechanical friction.

However, with the recent rapid increase in the distribution of wind power generators in european countries, it is expected that the power generated by wind power generators will reach 10% of the power in all european countries by 2020.

Further, according to the data analyzed so far, the unit power generation cost of the power generation system using wind energy is reduced based on the establishment of the technology, and thus it is competitive with the power generation system using fossil fuel in terms of the unit power generation cost. Further, since the generated energy is eco-friendly and pollution-free energy, it is expected that the power generation system will be rapidly and widely popularized worldwide.

Wind power generators are classified into a lift type and a drag type according to the shape of a windmill blade. In korea, there are few areas having local environmental conditions where strong wind is continuously blown for a long time, and since the drag type wind power generator is adapted to rotate a windmill with low wind pressure, it is effective to use the drag type wind power generator.

Such a drag type wind power generator has an advantage that the amount of force received from wind can be increased by increasing the height of the blade, i.e., the length of the blade in the axial direction of the strut, but has disadvantages in that, since the larger the blade, the heavier the blade is, and the weight of the frame for stably supporting the blade is increased in addition to the weight of the blade: there are inevitable limitations in reducing the weight of the blade both materially and structurally and conversely in increasing the size of the blade.

Disclosure of Invention

Technical problem

Accordingly, the present disclosure is directed to solving the foregoing problems, and it is an aspect of the present disclosure to provide a fluid dynamic power generator that effectively utilizes drag of wind to improve power generation efficiency without increasing the size of blades, and a power generation system including the same.

Technical scheme

According to an aspect of the present disclosure, there is provided a hydrodynamic generator comprising: an ascending air flow forming body mounted on the rotating shaft; a plurality of spiral blades formed spirally along an outer peripheral surface of the ascending airflow forming body; and a generator configured to generate electric power based on rotation of the ascending airflow forming body.

The updraft formation body may have an upper outer diameter larger than a lower outer diameter thereof.

The horizontal width of the helical blade may gradually increase from the bottom upward.

The fluid dynamic generator may further include a first auxiliary drag blade formed to be inclined with respect to a surface of the helical blade along an edge of the helical blade and to receive a drag while capturing wind.

The horizontal width of the first auxiliary drag blade may be gradually increased from the bottom upward.

In addition, the fluid dynamic generator may further include a second auxiliary drag blade formed at an upper end of the helical blade.

The second auxiliary drag blade may be formed to be curved in a direction of receiving a drag force of the ascending air current.

In addition, the fluid dynamic generator may further include a wind guide reinforcing blade formed at an upper portion of the spiral blade.

The wind guide reinforcing blades may include upper exposed surfaces connected along edges of the second auxiliary drag blades to provide a wind outlet between the wind guide reinforcing blades and the second auxiliary drag blades, and the upper exposed surfaces are exposed to the outside.

Here, the upper exposed surface may include a logo.

The fluid dynamic generator may further comprise an upper end cap formed at an upper end portion of the ascending air flow forming body.

Further, at least one of the ascending flow forming body and the spiral blade may be configured to have a hollow portion inside.

Here, the fluid power generator may further include an inlet port formed to inject and discharge fluid into and from the hollow portion.

The fluid power generator may further comprise a binding unit formed to maintain a contracted state in which the fluid is discharged from the hollow portion.

The hollow portion of the spiral blade and the hollow portion of the ascending air flow forming body may be formed to communicate with each other.

Further, the hollow portion may be filled with a solid.

According to an aspect of the present disclosure, there is provided a power generation system having a hydrokinetic electrical generator, the power generation system comprising: the aforementioned fluid dynamic generator; and an up-and-down motion actuator mounted to apply an actuation force to move the hydrodynamic generator up and down; a rotating shaft including a long up-and-down moving rod formed to pass through the center of the ascending air flow forming body to serve as a moving rail of the hydrodynamic generator.

The power generation system may include a wind shield formed to surround the helical blade and prevent wind from being applied to the helical blade in a state where the fluid dynamic generator is moved to a lower portion.

The draft shield may include a plant growing container including a space for growing plants.

According to an aspect of the present disclosure, there is provided a power generation system having a hydrokinetic electrical generator, the power generation system comprising: a plurality of the aforementioned fluid power generators, which are arranged in multiple stages in the up-down direction, and the rotating shaft is formed long so as to pass through the center of the ascending airflow forming body of the fluid power generator.

The power generation system may further include a support frame installed along an arrangement direction of the fluid dynamic generators, and a plurality of shaft support members installed between the support frame and the rotation shaft to rotatably support the rotation shaft.

According to an aspect of the present disclosure, there is provided a power generation system having a hydrokinetic electrical generator, the power generation system comprising: a plurality of fluid dynamic generators, the power generation system comprising a rotating frame in which a plurality of the fluid dynamic generators are rotatably mounted.

The rotating frame may include: a main rotating shaft connected to the hydrodynamic generator; and a plurality of rotary support members including a first end rotatably connected to the main rotary shaft and a second end connected to the rotary shaft.

The rotation support member may include a lower rotation support member including a first end connected to the main rotation shaft and a second end connected to a lower end of the rotation shaft, and an upper rotation support member including a first end connected to the main rotation shaft and a second end connected to an upper end of the rotation shaft.

The rotation support member may be arranged to form a plurality of layers in an up-down direction of the main rotation shaft.

Technical effects

As described above, according to the present disclosure, torque is generated by drag force of the helical blade, and wind does not completely and straightly flow through the updraft formation body, but a certain amount of wind forms the updraft while flowing toward the upper side having a small diameter, thereby having an effect of increasing torque and improving power generation efficiency using drag force of the updraft additionally received.

Further, according to the present disclosure, the updraft formed by the updraft forming body causes torque to be additionally generated in the first and second auxiliary drag blades, thereby remarkably improving the power generation efficiency of electric energy. Further, the wind guide reinforcing blades connect and reinforce the second auxiliary drag blades to each other, and a sign (sign) is formed on an upper exposed surface exposed to the outside, thereby implementing a hydrodynamic power generator for advertisement to have an advertisement effect.

In the power generation system having the fluid dynamic generator according to the present disclosure, the plurality of fluid dynamic generators are provided in multiple layers, thereby having an effect of obtaining high output electric energy based on the torque generated in the fluid dynamic generator.

Drawings

Figure 1 is a perspective view of a fluid dynamic generator according to a first embodiment of the present disclosure,

figure 2 is a front view of the hydrokinetic electrical generator shown in figure 1,

figure 3 is a perspective view of a hydrodynamic generator according to a second embodiment of the present disclosure,

figure 4 is a perspective view of a hydrodynamic generator according to a third embodiment of the present disclosure,

figure 5 is a partially cut-away perspective view of a fluid dynamic generator according to a third embodiment of the present disclosure,

figure 6 is a perspective view of a hydrokinetic electrical generator in accordance with a fourth embodiment of the present disclosure,

figure 7 is a perspective view for describing an alternative example of a fluid dynamic generator according to a fourth embodiment of the present disclosure,

fig. 8a to 8c are diagrams for describing a power generation system with a fluid dynamic generator according to a first embodiment of the present disclosure, in which fig. 8a shows a state where a rotary body portion of the fluid dynamic generator is moved to an upper portion; figure 8b shows the condition in which the rotating body portion of the fluid dynamic generator is moved to the lower position; figure 8c is a partially enlarged exploded perspective view for describing the up-and-down movement actuator,

figures 9a and 9b are perspective views for describing an alternative example of a power generation system with a hydrodynamic generator according to a first embodiment of the present disclosure,

figure 10 is a perspective view for describing a power generation system with a hydrodynamic generator according to a second embodiment of the present disclosure,

figure 11a is a perspective view of a power generation system with a hydrokinetic electrical generator in accordance with a third embodiment of the present disclosure,

FIG. 11b shows a perspective view of a support frame and shaft support member separated from a power generation system having a hydrodynamic generator, in accordance with a third embodiment of the present disclosure, an

Fig. 11c is a partially enlarged perspective view of fig. 11 b.

Detailed Description

Embodiments of the present disclosure will be described in detail below with reference to the drawings of fig. 1-11 c, wherein like reference numerals refer to like elements throughout fig. 1-11 c. In the drawings, illustration and detailed description of the structure and its function and effect, which are easily understood from the conventional art by those skilled in the art, are simplified or omitted, and the illustration is focused on parts related to the present disclosure.

Fig. 1 is a perspective view of a hydrodynamic generator according to a first embodiment of the present disclosure, and fig. 2 is a front view of the hydrodynamic generator shown in fig. 1.

Referring to fig. 1 and 2, a fluid dynamic power generator 10 according to a first embodiment of the present disclosure effectively utilizes low drag wind to efficiently generate power without increasing the size of blades, and the fluid dynamic power generator 10 includes an updraft formation body 20, a rotating shaft 40, a helical blade 30, and a power generator 120.

Inside the fluid power generator 10, a reinforcing support (not shown) may be added to reinforce the fluid power generator 10.

The updraft formation member 20 is attached to the rotary shaft 40 as a component of a main body to which the helical blade 30 is attached.

Further, the updraft-forming body 20 is configured such that the wind does not completely and straightly flow through the updraft-forming body 20, but the updraft is formed based on the interaction with the helical blade 30, thereby improving the power generation efficiency.

For this reason, the updraft formation body 20 is approximately shaped like a cone having a lower outer diameter larger than an upper outer diameter.

The rotating shaft 40 refers to an element mounted in the updraft-forming body 20, and functions to transmit the rotational force of the updraft-forming body to the generator. Here, the rotating shaft 40 is installed to be inserted into a shaft insertion hole formed at the center of the updraft-type formation body, but the installation structure of the rotating shaft 40 is not limited to this structure, but may have various structures.

As shown in fig. 1, the spiral blade 30 is spirally formed from the bottom up along the outer peripheral surface of the ascending airflow-forming body 20, and the plurality of spiral blades 30 are arranged at equal angles.

In particular, the horizontal width of the helical blade 30 gradually increases from the bottom upward so as to receive drag force from the ascending air current. Here, the horizontal width refers to a distance from a portion where the spiral blade 30 is connected to the ascending air flow forming body 20 to an outer edge of the spiral blade 30.

Further, an increase in the horizontal width of the spiral blade 30 corresponds to a decrease in the outer diameter of the ascending airflow forming body 20 which is tapered upward, so that the upper outer diameter and the lower outer diameter of the spiral blade 30 may be substantially the same.

The generator 120 refers to an element for generating electric power based on the rotational force received from the rotational shaft, and various generators used in the field of wind power generation may be selected and applied as the generator 120 without limitation. However, the generator 120 to be installed may have a compact structure with a rated capacity suitable for the torque of the rotating shaft 40.

For example, when the drag force of the helical blade 30 is transmitted to the up-flow forming body 20 and the rotating shaft 40 is thus rotated, a motor shaft connected to the rotating shaft 40 is rotated, and a built-in power generation coil or permanent magnet is rotated, thereby causing the generator 120 to induce a current in the coil based on the magnetic field of the magnet. In the drawings, the generator is shown as a conceptual block, and its specific shape is not shown.

The operation of the aforementioned fluid dynamic generator according to the first embodiment of the present disclosure will be schematically described.

In a state that the rotation shaft 40 shown in fig. 1 and 2 is connected to a motor shaft of the generator mounted on the support plate 100, when wind blows, drag force on the helical blade 30 causes rotation like a conventional wind power generation rotating body, thereby generating electric power based on power generation of the generator 120 connected to the rotation shaft 40.

In particular, the fluid power generator according to the first embodiment of the present disclosure includes the updraft formation body 20 having a tapered shape with a lower outer diameter larger than an upper outer diameter, and thus the wind colliding with the updraft formation body 20 or passing through the updraft formation body 20 does not flow completely and straightly through the updraft formation body 20, but a certain amount of wind forms an updraft flowing toward an upper side with a small diameter.

This updraft exerts a drag force on the helical blade 30, thereby generating a rotational force. In this case, the helical blade 30 has a helical winding structure in which the horizontal width gradually increases from the bottom upward, and thus captures wind to some extent, thereby increasing torque based on additional drag force caused by the updraft while maintaining the updraft, and thus has an advantage of improving power generation efficiency.

Next, other embodiments according to the present disclosure will be described, wherein detailed descriptions about elements similar to those shown in the foregoing first embodiment and its alternative examples are omitted, and different elements will be described with emphasis. Further, if some elements shown in the foregoing first embodiment and its alternative examples are interchangeable with elements to be shown in the following embodiments, these elements may be selectively employed in the following embodiments, but detailed description or illustration thereof is omitted.

Fig. 3 is a perspective view of a hydrodynamic generator according to a second embodiment of the present disclosure.

Referring to fig. 3, the fluid dynamic power generator 10 according to the second embodiment of the present disclosure includes an ascending air current forming body 20, a rotating shaft 40, a helical blade 30, and a power generator 120, and further includes a first auxiliary drag blade 50 to increase torque.

The first auxiliary drag blade 50 is formed to extend to protrude along an outer end of the spiral blade 30, that is, an edge of the spiral blade 30, and is formed to be inclined with respect to a surface of the spiral blade 30, thereby receiving a drag while capturing wind.

In particular, the horizontal width of the first auxiliary drag blade 50 is gradually increased from the bottom upward in order to effectively catch the wind. Here, the horizontal width refers to a distance from a portion of the first auxiliary drag vane 50 connected with the helical vane 30 to an outer edge of the first auxiliary drag vane 50.

Further, the first auxiliary drag blade 50 may be integrally formed with the helical blade 30, or may be separately manufactured and then connected to the helical blade 30 by welding or adhesive.

Further, the fluid dynamic power generator 10 according to the second embodiment of the present disclosure may further include a second auxiliary drag blade 60 to generate a torque based on a drag force of the updraft flowing out through the valley between the updraft formation body 20, the helical blade 30, and the first auxiliary drag blade 50.

The second auxiliary drag blade 60 is formed at an upper end portion of the spiral blade, and is bent in a direction for receiving a drag force based on the ascending air current.

For example, the second auxiliary blade 60 is connected between the upper end portion of the helical blade 30 and the upper end portion of the ascending air flow forming body 20, and is bent to have a substantially arc-shaped cross section.

Further, a hemispherical upper end cap 70 is additionally mounted to an upper end portion of the updraft formation body 20.

The operation of the aforementioned fluid dynamic generator according to the second embodiment of the present disclosure will be schematically described.

The fluid dynamic power generator according to the second embodiment of the present disclosure includes the first auxiliary drag blade 50 and the second auxiliary drag blade 60 to additionally generate torque based on drag in addition to the dynamic power generation described in the operation of the first embodiment, thereby further improving the dynamic power generation efficiency.

More specifically, the first auxiliary drag blade 50 is formed at the outer end of the spiral blade 30, and thus receives drag while capturing an updraft that tends to flow outward in a centrifugal direction, thereby increasing torque and improving power generation efficiency.

Further, the second auxiliary drag blade 60 is bent at the upper end portion of the spiral blade 30 in a direction to receive drag based on the ascending air current, and thus receives drag of the ascending air current flowing out from the valley between the first auxiliary drag blade 50 and the ascending air current forming body 20, thereby increasing torque and having an advantage of additionally improving power generation efficiency.

As described above, the additional torque is mainly and secondarily generated by the first and second

auxiliary drag blades

50 and 60, thereby having an advantage of power generation that relatively increases electric power even if a given wind force is used.

Fig. 4 is a perspective view of a hydrodynamic generator according to a third embodiment of the present disclosure, and fig. 5 is a partially cut-away perspective view of a hydrodynamic generator according to a third embodiment of the present disclosure.

Referring to fig. 4 and 5, the fluid dynamic power generator 10 according to the third embodiment of the present disclosure includes an ascending air flow forming body 20, a rotating shaft 40, a spiral blade 30, a power generator 120, a first auxiliary drag blade 50, and a second auxiliary drag blade 60, and further includes a wind guide reinforcing blade 80 formed to surround an upper end of the spiral blade 30.

For example, the wind guide reinforcing blades 80 are formed to be connected to the second auxiliary drag blades 60 and disposed along the edges of the second auxiliary drag blades 60 to form a wind outlet between the second auxiliary drag blades 60 and the wind guide reinforcing blades 80. Here, the wind outlet serves as a passage for discharging the ascending air current after applying the drag force to the second auxiliary drag blade 60.

Further, the shape and structure of the wind guide reinforcing blades 80 are not particularly limited as long as they can form a wind outlet. In this embodiment, the wind-guiding reinforcement blade 80 is made of a plate-shaped member and has an annular structure so as to form an upper exposed surface on the outside to be used as a sign (sign) of an advertisement.

The upper exposed surface is exposed to the outside and thus serves as a sign on which text or designs are printed, or a sign in which an electronic sign is formed using a Light Emitting Diode (LED) module.

As described above, the wind guide reinforcing blades 80 form the wind outlet so that the updraft flows upward through the valley between the first auxiliary drag blade 50 and the updraft formation body 20, and play a role of capturing wind to apply wind force to the second auxiliary drag blade 60, thereby increasing torque while guiding the wind to be stably discharged, and having an effect of reducing the generation of vortex.

In addition, the wind guide reinforcing blades 80 serve to connect and reinforce the second auxiliary drag blades 60 and form marks on the upper exposed surface thereof exposed to the outside, thereby implementing a hydrodynamic power generator for advertisement to have an advertisement effect.

Further, the fluid dynamic power generator 10 according to the third embodiment of the present disclosure includes the column tube 110, and the column tube 110 has a cylindrical shape and is installed outside the rotating shaft 40.

When the rotation shaft 20 rotates, the column tube 110 prevents the rotation shaft 20 from contacting an external object or a human body, thereby preventing a safety accident.

Fig. 6 is a perspective view of a hydrodynamic generator according to a fourth embodiment of the present disclosure, in which an enlarged view shows a section of an indication portion.

Referring to fig. 6, a hydrodynamic power generator 10 according to a fourth embodiment of the present disclosure includes an updraft formation body 20, a rotating shaft 40, a helical blade 30, a power generator 120, a first auxiliary drag blade 50, a second auxiliary drag blade 60, and a wind guide reinforcing blade 80, wherein the updraft formation body 20 and the blades have a hollow structure.

For example, the ascending air current forming body 20, the spiral vane 30, the first auxiliary drag vane 50, the second auxiliary drag vane 60, and the wind guide reinforcing vane 80 are internally formed with a hollow portion a2 located between a pair of surface bodies a 1. Here, air or the like fluid may be injected into the hollow portion a 2.

In this case, the surface body a1 is made of synthetic resin or airtight fabric having airtightness and a certain rigidity, and is configured to contract and expand as needed.

Further, the surface body a1 may be made of a cloth having a certain rigidity and through which a fluid can pass.

The surface body a1 may be formed with an inlet (not shown) through which fluid is injected into the hollow portion a2 or discharged from the hollow portion a 2. Here, the inlet may be embodied as an air injection valve, typically provided in an air cushion or similar air injection structure.

Further, although not shown, the hollow portion of the ascending air flow forming body 20, the hollow portion of the spiral vane 30, the hollow portion of the first auxiliary drag vane 50, the hollow portion of the second auxiliary drag vane 60, and the hollow portion of the air guide reinforcing vane 80 may communicate with each other, so that air may be injected and discharged through one inlet.

Further, a binding unit (not shown) may be provided to bind the ascending air current forming body 20, the spiral vane 30, the first auxiliary drag vane 50, the second auxiliary drag vane 60, and the wind guide reinforcing vane 80 and maintain a contracted state in which air is discharged.

The binding unit may include a rope (not shown) and a binding ring (not shown) which is installed at edge portions of the ascending air flow formation 20 and the

blades

30, 50, 60, 70 and binds the ascending air flow formation 20 and the

blades

30, 50, 60, 70 while the rope is tied in the binding ring.

In this way, the binding unit (not shown) binds the ascending air current forming body 20 and the

blades

30, 50, 60, 70 together in a contracted state to minimize the volume, thereby easily carrying or manipulating the fluid power generator, and protecting the fluid power generator in the event of high-speed wind such as typhoon.

For example, when a typhoon or similar high-speed wind comes, the ascending air flow forming body 20 and the

blades

30, 50, 60, 70 are deflated, and then the binding rings and the ropes are threaded together to bind the air flow forming body 20 and the

blades

30, 50, 60, 70 together, thereby preventing the blades from being damaged or broken by the typhoon.

Further, for example, the fluid dynamic power generator according to the fourth embodiment of the present disclosure has the following structure: all of the ascending air flow forming body 20, the spiral blade 30, the first auxiliary drag blade 50, the second auxiliary drag blade 60, and the wind guide reinforcing blade 80 have hollow portions. Alternatively, only certain blades may be partially formed with a hollow.

As described above, the fluid dynamic power generator 10 according to the fourth embodiment of the present disclosure is improved in convenience in handling (e.g., installation, carrying, etc.) due to contraction and expansion of its elements as needed, and is improved in safety and durability due to its easy folding and storage to prevent damage or breakage in an emergency such as a typhoon.

Fig. 7 is a perspective view for describing an alternative example of the fluid dynamic generator according to the fourth embodiment of the present disclosure, in which an enlarged view shows a section of an indicated portion.

Referring to fig. 7, in the fluid power generator 10 according to the fourth embodiment of the present disclosure, the ascending air current forming body 20 and the

blades

30, 50, 60, 70 are configured to have a hollow portion between a pair of surface bodies a1, and the hollow portion is filled with a solid body a 3.

The solid a3 may include various materials without any particular limitation so long as the solid a3 has a certain rigidity. In this embodiment, the hollow portion is filled with a foaming material.

The ascending flow forming body 20 and the

blades

30, 50, 60, 70 are configured to have a hollow portion filled with a relatively inexpensive and lightweight foamed material, thereby having an advantage of reducing installation costs due to its lightweight and easy portability, installation and manipulation, and significantly reducing manufacturing and construction costs of the fluid dynamic power generator due to its low material costs and simplified manufacturing process.

Further, the hollow portions of the ascending flow forming body 20 and the

blades

30, 50, 60, and 70 may be filled with the solid a 3. Alternatively, however, only certain blades may be filled with solid, while other elements may be filled with air.

Fig. 8a to 8c are diagrams for describing a power generation system with a fluid dynamic generator according to a first embodiment of the present disclosure, in which fig. 8a shows a state where a rotary body portion of the fluid dynamic generator is moved to an upper portion; figure 8b shows the condition in which the rotating body portion of the fluid dynamic generator is moved to the lower position; fig. 8c is a partially enlarged exploded perspective view for describing the up-down movement actuator.

Referring to fig. 8a to 8c, the power generation system with a fluid power generator according to the first embodiment of the present disclosure includes a fluid power generator 10 selected from the aforementioned fluid power generators disclosed in the aforementioned embodiments, and an up-down movement actuator 180 that applies an actuating force to the fluid power generator 10 to move the fluid power generator 10 up and down.

The rotating shaft 40 provided in the fluid power generator includes a long up-down moving rod 42, and the up-down moving rod 42 is installed to pass through the center of the ascending gas flow forming body 20 so as to serve as a moving rail of the fluid power generator.

Further, as shown in fig. 8c, the up-down moving lever 42 is formed with a plurality of stopper lines 422, and the stopper lines 422 function as keys in the longitudinal direction in a body shaped like a round bar so as to rotate interlockingly with the ascending airflow forming body 20 that rotates while allowing the ascending airflow forming body 20 to move up and down. Further, the up-down moving bar may be formed as an angular bar having a polygonal cross section, in addition to the shape shown in fig. 8 c.

Further, the updraft-forming body 20 is internally formed with a moving hole (not shown) at the center thereof, and the shape of the moving hole corresponds to the cross section of the up-down moving bar 42. In this case, the inner diameter of the moving hole is slightly larger than the outer diameter of the up-down moving bar 42, so that a gap is formed to allow the up-flow forming body 20 placed on the up-down moving bar 42 to move up and down.

The up-down movement actuator 180 refers to an element for moving up and down a portion (hereinafter, referred to as a "rotating body") of the fluid power generator other than the rotating shaft 40, and the up-down movement actuator 180 may select any device or structure without particular limitation as long as it can move the fluid power generator up and down.

For example, the up-and-down movement actuator 180 includes an upper actuating sprocket 181, a lower actuating sprocket 182, an actuating chain 183, and an actuating motor (not shown), the upper actuating sprocket 181 and the lower actuating sprocket 182 being installed at upper and lower sides of an actuator mounting groove 424, respectively, the actuator mounting groove 424 being formed inside the rotating shaft 40 and being longitudinally recessed, the actuating chain 183 being connected to the upper actuating sprocket 181 and the lower actuating sprocket 182, and the actuating motor being connected to the lower actuating sprocket 182 and applying a rotational force.

Here, a certain portion of the actuating chain 183 is inserted and held in a chain mounting groove (not shown) formed in the ascending air flow forming body 20 of the fluid dynamic generator, and the actuating chain 183 moves up and down based on the rotation of the actuating motor, thereby moving the fluid dynamic generator up and down.

Further, the up-down motion actuator 180 may employ a belt actuation as well as the aforementioned chain actuation. For example, the up-and-down movement actuator 180 may include an upper actuating pulley (not shown), a lower actuating pulley (not shown), an actuating belt (not shown), and an actuating motor (not shown), the upper and lower actuating pulleys being installed at upper and lower sides of the actuator installation groove 424, respectively; an actuating belt is connected to the upper and lower actuating pulleys, and an actuating motor is connected to the lower actuating pulley and applies a rotational force.

Further, the power generation system with the fluid dynamic power generator according to the first embodiment of the present disclosure includes the wind shield 140 to prevent wind force from being applied to the helical blade 30 in a state where the rotating body of the fluid dynamic power generator 10 is moved to the lower portion.

The windshield 140 may have any shape without particular limitation so long as it can surround the rotation body moving to the lower portion and protect the rotation body moving to the lower portion from high-speed wind such as typhoon. In this embodiment, the windshield 140 is generally shaped like a cylinder.

Fig. 9a and 9b are perspective views for describing an alternative example of the power generation system with a hydrodynamic generator according to the first embodiment of the present disclosure, in which fig. 9a shows the rotary body portion of the hydrodynamic generator moving to the upper portion, and fig. 9b shows the rotary body portion of the hydrodynamic generator moving to the lower portion.

Referring to fig. 9a and 9b, the power generation system with a hydrodynamic power generator according to the first embodiment of the present disclosure includes a hydrodynamic power generator 10, an up-and-down movement actuator (not shown) selected from the aforementioned hydrodynamic power generators disclosed in the aforementioned embodiments, the up-and-down movement actuator applying an actuating force to the hydrodynamic power generator 10 to move the hydrodynamic power generator 10 up and down, and a wind shield 140 preventing wind from being applied to the helical blade 30 in a state of being moved to a lower portion, wherein the wind shield 140 includes a plant-cultivating container 140b, and the plant-cultivating container 140b has a space for cultivating plants.

A plurality of plant-growing containers 140b are stacked in a container frame 142 and arranged to surround the fluid-dynamic generator.

Further, the plant-cultivating container 140b refers to an apparatus for cultivating plants, and is internally provided with an artificial light source such as an LED module, a planting tray in which plants are planted, a nutrient solution supplier for supplying a nutrient solution, and the like.

As described above, the power generation system having the fluid dynamic generator according to the first embodiment of the present disclosure employs the up-and-down movement actuator to move the rotator portion of the fluid dynamic generator up and down as needed, and thus move the rotator portion of the fluid dynamic generator down into the windshield 140 in an emergency such as a typhoon, thereby safely protecting the rotator portion of the fluid dynamic generator and thus achieving a stable power generation system.

Fig. 10 is a perspective view for describing a power generation system with a hydrodynamic generator according to a second embodiment of the present disclosure.

Referring to fig. 10, the power generation system with hydrodynamic force generators according to the second embodiment of the present disclosure includes a plurality of hydrodynamic force generators 10 selected from the hydrodynamic force generators disclosed in the foregoing embodiments, the hydrodynamic force generators 10 being placed on a long rotation shaft 40 and arranged up and down at regular intervals.

The plurality of fluid dynamic generators are placed on the long rotating shaft 40 through an insertion hole formed at the center of the ascending airflow forming body, and include a support frame 150 installed in the up-down direction, that is, the arrangement direction of the fluid dynamic generators, and a plurality of shaft support members 160 rotatably supporting the rotating shaft 40.

The support frame 150 includes a plurality of struts 151 installed at equal angles and circular connection members 152 connected between the struts 151.

The shaft support member 160 has a first end connected to the support frame 150 and a second end mounted to the rotation shaft 40, and includes a bearing (not shown) at a portion connected to the rotation shaft 40, thereby rotatably supporting the rotation shaft 40.

As described above, the power generation system with a hydrodynamic power generator according to the second embodiment of the present disclosure includes the hydrodynamic power generator 10 at a plurality of heights in the up-down direction of the long rotary shaft 40 so that the torque generated in the hydrodynamic power generator 10 can be transmitted to the rotary shaft 40, thereby obtaining high output electric power from the generator.

Fig. 11a is a perspective view of a power generation system with a hydrodynamic generator according to a third embodiment of the present disclosure, fig. 11b shows a perspective view after separating a support frame and a shaft support member from the power generation system with a hydrodynamic generator according to the third embodiment of the present disclosure, and fig. 11c is a partially enlarged perspective view of fig. 11 b.

Referring to fig. 11a to 11c, a power generation system with a hydrodynamic force generator according to a third embodiment of the present disclosure includes a hydrodynamic force generator 10 and a rotating frame 170, the hydrodynamic force generator 10 being selected from the hydrodynamic force generators disclosed in the previous embodiments and arranged up and down at regular intervals, wherein a plurality of hydrodynamic force generators are rotatably installed in each layer of the rotating frame.

The rotating frame 170 includes a main rotating shaft 171 and a plurality of rotating support members 172, the main rotating shaft 171 being connected to the generator, the plurality of rotating support members 172 having a first end rotatably connected to the main rotating shaft 171 and a second end rotatably connected to the rotating shaft 40.

The main rotation shaft 171 is provided as a member shaped like a long rod, and includes a lower portion connected to the generator 120.

The rotation support member 172 is arranged to form a plurality of layers in the up-down direction of the main rotation shaft 171, and functions to arrange the plurality of hydrodynamic generators 10 in a multilayer structure.

The rotation support member 172 includes a lower rotation support member 1721 and an upper rotation support member 1722, the lower rotation support member 1721 having a first end connected to the main rotation shaft 171 and a second end connected to a lower end of the rotation shaft 40 of the hydrodynamic generator, and the upper rotation support member 1722 having a first end connected to the main rotation shaft 171 and a second end connected to an upper end of the rotation shaft 40.

Further, the lower and upper

rotation support members

1721 and 1722 are connected to a fastening ring 1723 installed on the main rotation shaft 171 to transmit the rotation force to the main rotation shaft 171, and the lower and upper

rotation support members

1721 and 1722 are connected to each other through upper and lower connection members 1724.

As shown in fig. 11a, the power generation system with a fluid dynamic generator according to the third embodiment of the present disclosure includes a support frame 150 and a plurality of shaft support members 160, the support frame 150 being installed in the up-down direction, that is, the arrangement direction of the fluid dynamic generator so as to support the fluid dynamic generator, the shaft support members 160 rotatably supporting a main rotation shaft 171.

The support frame 150 and the shaft support member 160 are slightly different in shape from the support frame 150 and the shaft support member 160 of the aforementioned second embodiment but similar to the support frame 150 and the shaft support member 160 of the aforementioned second embodiment, and thus detailed descriptions thereof will be omitted.

As described above, the power generation system with a hydrodynamic generator according to the third embodiment of the present disclosure includes the plurality of rotary member supports 172, the plurality of rotary member supports 172 are placed on the long main rotation shaft 171 and arranged at regular intervals, and the hydrodynamic generator 10 is mounted to each rotary member support 172, thereby realizing the power generation system in which the plurality of hydrodynamic generators are arranged in a multi-layer structure.

In the power generation system, the torque of the rotating shaft 40 based on the drag force of the helical blades 30, the first auxiliary drag blades 50, and the second auxiliary drag blades 60 of the hydrodynamic generator 10 disposed in each layer is transmitted through the rotating member support 172, thereby rotating the main rotating shaft 171. In this way, the main rotating shaft 171 is rotated by the rotational force generated in the three hydrodynamic generators 10 arranged in each layer, and thus the generator 120 can obtain high output electric power.

The foregoing description is merely an embodiment for implementing a hydrodynamic generator according to the present disclosure, and the present disclosure is not limited to the foregoing embodiments. Accordingly, those of ordinary skill in the art will appreciate that the technical concept of the present disclosure falls within the extent that various changes may be made without departing from the scope of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless the context clearly dictates otherwise, singular expressions include plural expressions. In the present application, the terms "comprising" or "having" are intended to mean that there are features (numbers, steps, actions, components, parts, or combinations thereof) described in the specification, as well as one or more other features. It should be understood that this disclosure does not preclude the presence or addition of numbers, steps, operations, components, groups, or groups thereof.

Industrial applicability

According to the present disclosure, there are provided a fluid dynamic power generator capable of effectively generating electric power even in weak wind and a power generation system including the same, in which drag force of wind is effectively used to improve power generation efficiency without increasing the size of blades to expand a range of use, and a sign (sign) is formed on an upper exposed surface exposed to the outside, thereby implementing the fluid dynamic power generator for advertisement to have an advertisement effect using self-generated electric power.

Description of the reference numerals

10: hydrodynamic generator, 20: updraft formation body, 30: helical blade, 40: rotation axis, 50: first auxiliary drag vane, 60: second auxiliary drag vane, 70: upper end cap, 80: air guide reinforcing blade, 100: support plate, 110: column tube, 120: generator, 140: windshield, 150: support frame, 160: shaft support member, 170: rotating frame, 180: an up and down motion actuator.

Claims

1. A hydrokinetic electrical generator comprising:

an ascending air flow forming body mounted on the rotating shaft;

a plurality of spiral blades formed spirally along an outer peripheral surface of the ascending airflow forming body; and

a generator configured to generate electric power based on rotation of the ascending airflow forming body.

2. The hydrodynamic generator of claim 1, wherein a lower outer diameter of the updraft formation is greater than an upper outer diameter thereof.

3. A hydrodynamic generator according to claim 2, wherein the horizontal width of the helical blade increases progressively from the bottom upwards.

4. The hydrodynamic generator of claim 3, wherein the hydrodynamic generator further comprises a first auxiliary drag blade formed to be inclined with respect to a surface of the helical blade along an edge of the helical blade and to receive a drag while capturing wind.

5. The hydrodynamic generator of claim 4, wherein a horizontal width of the first auxiliary drag blade gradually increases from a bottom upward.

6. The hydrodynamic generator of claim 4, wherein the hydrodynamic generator further comprises a second auxiliary drag blade formed at an upper end of the helical blade.

7. The hydrodynamic generator of claim 6, wherein the second auxiliary drag blade is formed to curve in a direction that receives a drag force of an updraft.

8. The hydrodynamic force generator of claim 6, wherein the hydrodynamic force generator further comprises wind guide reinforcing blades formed on an upper portion of the helical blades.

9. The hydrodynamic force generator of claim 8, wherein the wind guide reinforcing blade includes an upper exposed surface connected along an edge of the second auxiliary drag blade to provide a wind outlet between the wind guide reinforcing blade and the second auxiliary drag blade, and the upper exposed surface is exposed to the outside.

10. The hydrodynamic force generator of claim 9, wherein the upper exposed surface includes a sign (sign).

11. A fluid dynamic generator as claimed in claim 2, wherein the fluid dynamic generator further comprises an upper end cap formed at an upper end of the up-flow formation.

12. The hydrodynamic generator according to claim 1, wherein at least one of the ascending air flow forming body and the helical blade is configured to have a hollow inside.

13. The hydrodynamic generator of claim 12, wherein the hydrodynamic generator further comprises an inlet port formed to inject fluid into the hollow portion and to exhaust fluid from the hollow portion.

14. The hydrodynamic generator of claim 13, wherein the hydrodynamic generator further comprises a binding unit formed to maintain a contracted state that expels the fluid from within the hollow.

15. The hydrodynamic power generator according to claim 12, wherein the hollow portion of the helical blade and the hollow portion of the ascending air flow forming body are formed to communicate with each other.

16. The hydrodynamic force generator of claim 12, wherein the hollow is filled with a solid.

17. A power generation system having a hydrokinetic electrical generator, comprising:

a hydrodynamic generator according to any one of claims 1 to 16; and

an up-and-down motion actuator mounted to apply an actuation force to move the hydrodynamic generator up and down;

a rotating shaft including a long up-and-down moving rod formed to pass through the center of the ascending air flow forming body to serve as a moving rail of the hydrodynamic generator.

18. A power generation system according to claim 17, wherein the power generation system includes a windshield formed to surround the helical blade and prevent wind from being applied to the helical blade in a state in which the fluid dynamic generator is moved to the lower portion.

19. The power generation system of claim 18, wherein the windshield includes a plant growing container including a space for growing plants.

20. A power generation system having a hydrokinetic electrical generator, comprising:

a plurality of hydrodynamic generators according to any one of claims 1 to 16;

the plurality of fluid power generators are arranged in multiple stages in the up-down direction, and the rotary shaft is formed long to pass through the center of the ascending air flow forming body of the fluid power generator.

21. A power generation system according to claim 20, wherein the power generation system further includes a support frame mounted along the arrangement direction of the fluid dynamic generators, and a plurality of shaft support members mounted between the support frame and the rotary shaft to rotatably support the rotary shaft.

22. A power generation system having a hydrokinetic electrical generator, comprising:

a plurality of hydrodynamic generators according to any one of claims 1 to 16;

the power generation system includes a rotating frame in which a plurality of the fluid dynamic generators are rotatably mounted.

23. The power generation system of claim 22, wherein the rotating frame comprises:

a main rotating shaft connected to the hydrodynamic generator; and

a plurality of rotary support members including a first end rotatably connected to the main rotary shaft and a second end connected to the rotary shaft.

24. The power generation system according to claim 23, wherein the rotation support member includes a lower rotation support member and an upper rotation support member, the lower rotation support member including a first end connected to the main rotation shaft and a second end connected to a lower end of the rotation shaft, the upper rotation support member including a first end connected to the main rotation shaft and a second end connected to an upper end of the rotation shaft.

25. The power generation system according to claim 23, wherein the rotation support member is arranged to form a plurality of layers in an up-down direction of the main rotation shaft.