WO2022203223A1 - Screw power generation apparatus having variable free end - Google Patents

Screw power generation apparatus having variable free end Download PDF

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Publication number
WO2022203223A1
WO2022203223A1 PCT/KR2022/002885 KR2022002885W WO2022203223A1 WO 2022203223 A1 WO2022203223 A1 WO 2022203223A1 KR 2022002885 W KR2022002885 W KR 2022002885W WO 2022203223 A1 WO2022203223 A1 WO 2022203223A1
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WO
WIPO (PCT)
Prior art keywords
screw
power generation
free end
generator
fixed
Prior art date
Application number
PCT/KR2022/002885
Other languages
French (fr)
Korean (ko)
Inventor
정민시
Original Assignee
정민시
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Publication date
Application filed by 정민시 filed Critical 정민시
Publication of WO2022203223A1 publication Critical patent/WO2022203223A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D3/00Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06Rotors
    • F03D3/061Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00Other machines or engines
    • F03B17/06Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00Other machines or engines
    • F03B17/06Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/063Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D15/00Transmission of mechanical power
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D3/00Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06Rotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/25Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00Application
    • F05B2220/30Application in turbines
    • F05B2220/32Application in turbines in water turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00Application
    • F05B2220/70Application in combination with
    • F05B2220/706Application in combination with an electrical generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/20Rotors
    • F05B2240/21Rotors for wind turbines
    • F05B2240/221Rotors for wind turbines with horizontal axis
    • F05B2240/2212Rotors for wind turbines with horizontal axis perpendicular to wind direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/20Rotors
    • F05B2240/24Rotors for turbines
    • F05B2240/243Rotors for turbines of the Archimedes screw type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates to a screw power generation device having a variable free end, and more particularly, a support end of a structure is provided rotatably about a fixed axis, a structure central axis is formed at the support end, and the screw-type blade has a structure It relates to a screw power generation device having a variable free end in which screw blades are spirally formed on the outer circumferential surface of the sleeve through which the central axis passes, and the power generation unit generates power using the rotational force of the screw type blade.
  • the conventional power generation method using a fluid was a method using a propeller, but if the direction of the fluid was not directed to the front of the propeller, it was difficult to secure the amount of power generation. and corrosion due to adhesion or salt of fish and shellfish occurs, resulting in reduced power generation efficiency, and difficult maintenance.
  • the conventional screw-type aberration has a limitation in that it completely depends on the rotational force of the front screw blade in contact with the fluid as the rotation shaft is arranged parallel to the flow direction of the fluid, and the rear screw blade has a vortex caused by the front screw blade. There was a problem in that the power generation efficiency was rapidly lowered because sufficient rotational force was not secured.
  • the flow direction of a fluid such as wind or current may be changed 180 degrees over time
  • the screw power generator according to the prior art document has a limitation in that it is difficult to change the direction once the rotating shaft is constructed. That is, there was a disadvantage in that it was difficult to change the angle variably in the flow direction of the fluid, and as both ends of the rotating shaft were fixed to the structure, maintenance was difficult, and there was a limitation in that it was not possible to secure sufficient efficiency even in power generation using rotational force. .
  • the present invention has been proposed to solve the above problems, and the angle can be changed to correspond to the flow direction of the fluid that changes with time, and it is possible to secure structural rigidity and stability nonetheless, and to expect efficiency in installation and construction It is an object of the present invention to propose a screw power generator having a variable free end that can be easily maintained and can promote power generation efficiency.
  • the screw power generation device (SG) having a variable free end of the present invention is provided with a support end 11 rotatably with respect to a fixed shaft 12, and the support end 11 is a structure portion 10 having a central axis 13 formed thereon so that one end is fixed and the other end is a free end; a screw-type blade 20 having a sleeve 21 through which the structure central axis 13 penetrates, and having screw blades 22 spirally formed on an outer circumferential surface of the sleeve 21; and a power generation unit 30 for generating power by using the rotational force of the screw-type blade 20 .
  • the rotating shaft 40 is provided so that the structure central axis 13 passes through, and the sleeve 21 of the screw-type blade 20 may be coupled to surround the rotating shaft 40 .
  • the power generation unit 30 has a rotational force transmitting unit 31 is formed at one end of the sleeve 21 or the rotating shaft 40 , and a rotating force receiving unit 32 that receives power from the rotating force transmitting unit 31 . is formed, and may include a generator 33 that generates power using the power of the rotational force receiving unit 32 .
  • rotational force receiving unit 32 and the generator 33 of the power generation unit 30 may be formed in the structure unit (10).
  • the rotating force transmitting unit 31 of the power generation unit 30 is formed on the free end side, and the rotating force receiving unit 32 and the generator 33 are provided on the mounting plate 34 fixed to the structure central axis 13 . can be formed.
  • the structural part 10 is provided with a fixing shaft 12 in a case 14 in which a pair of parallel support plates 14b are formed around the fixing plate 14a, so that both ends are attached to the support plate 14a. can be fixed.
  • angle limiting surfaces 12a are provided on both sides of the fixed shaft 12 of the structural part 10, and a locking rib 11a is formed on the support end 11 so that the rotation angle of the support end 11 is It may be limited to a predetermined angle (+ ⁇ , - ⁇ ) around a direction perpendicular to the flow direction of the fluid.
  • the screw power generation device (SG) having a variable free end of the present invention, since the support end to which the structure central axis is fixed is provided rotatably relative to the fixed axis, the inclination angle to correspond to the flow direction of the fluid that changes with time may be variable.
  • the angle of the central axis of the structure can be changed to correspond to it, so that optimum power generation efficiency can be secured.
  • the central axis of the structure functions only as a central axis on which the screw-type blade rotates without being rotated separately, it can be firmly fixed to the support end, thereby securing structural stability and rigidity.
  • one end of the central axis of the structure is fixed to the support end and the other end can be formed as a free end, efficiency in installation and construction can be expected, and maintenance is easy.
  • the embodiment by separating the position of the power generation unit including the rotational force transmitting unit and the rotating moon receiving unit from the fluid, it is possible to overcome the decrease in efficiency due to the fluid and prevent corrosion of the parts.
  • power generation efficiency can be achieved by limiting the inclination angle of the central axis of the structure to a specific angle at which optimum efficiency can be exhibited.
  • FIG. 1 is a perspective view showing a screw generator according to an embodiment of the present invention.
  • FIGS. 2 and 3 are perspective views showing a screw generator according to various embodiments of the present invention.
  • Figure 4 is a perspective view showing a modified embodiment of the screw generator according to Figure 1;
  • FIG. 5 is a cross-sectional view showing a screw generator according to another embodiment of the present invention.
  • the support end 11 is provided rotatably with respect to the fixed shaft 12, and the structure central axis 13 is formed so that the other end becomes a free end while one end is fixed to the support end 11. ); a screw-type blade 20 having a sleeve 21 through which the structure central axis 13 penetrates, and having screw blades 22 spirally formed on an outer circumferential surface of the sleeve 21; and a power generation unit 30 for generating power using the rotational force of the screw-type blade 20; It provides a screw power generator having a variable free end, characterized in that it comprises a.
  • FIG. 1 shows a screw power generation device (SG) having a variable free end according to an embodiment of the present invention, a structural part 10 performing a structural role, a screw-type blade generating a rotational force according to the flow of a fluid ( 20), and a power generation unit 30 that generates electric power using rotational force.
  • SG screw power generation device
  • the structural part 10 is provided so that the support end 11 is relatively rotatable to the fixed shaft 12 that is fixed to the ground or the structure and receives and transmits a load.
  • One end of the structural central shaft 13 is fixed to the support end 11 , and the structural central shaft 13 functions as a central shaft so that a screw-type blade 20 , which will be described later, can be rotated, so it is generated by a fluid
  • the load or the self-weight of the screw-type blade 20 is transmitted to the structure central axis 13 , and is transmitted to the fixed shaft 12 via the support end 11 .
  • the support end 11 may be formed in a shape surrounding the fixed shaft 12 to enable relative rotation with respect to the fixed shaft 12, but the support end 11 is rotated inside It is possible, and the fixing shaft 12 may be fixed to the outside so as to surround the support end 11 .
  • the structure central axis 13 is rotatable by the support end 11 , when the flow direction of the fluid is formed in one direction, the rotation angle is naturally varied depending on it. If the flow direction of the fluid is changed by 180 degrees over time, the rotation angle of the structure central axis 13 is also naturally varied.
  • the fixed shaft 12 of the structural part 10 is provided with angle limiting surfaces 12a on both sides with respect to a direction perpendicular to the flow direction of the fluid, and a locking rib 11a is provided on the support end 11 . It is formed so that the rotation angle of the support end 11 may be limited to a position forming a predetermined angle (+ ⁇ , - ⁇ ) with respect to a direction perpendicular to the flow direction of the fluid.
  • the screw generator (SG) having a variable free end of the present invention can generate the most ideal rotational efficiency when the rotational shaft of the screw-type blade 20 forms a specific inclination angle with the flow direction of the fluid.
  • the angle values (+ ⁇ , - ⁇ ) may be varied depending on the shape (helix angle, outer inclination angle) and diameter of the screw blades 22 constituting the screw-type blade 20 .
  • the support end 11 to which the structure central axis 13 is fixed is provided rotatably relative to the fixed axis 12, the inclination angle value (+ ⁇ , - ⁇ ) can be optionally changed. Accordingly, even if the flow direction of the fluid is changed, the angle of the central axis of the structure can be changed to correspond to it, so that optimum power generation efficiency can be secured.
  • a cover 12b may be additionally formed to cover and prevent separation of the support end 11 .
  • FIG. 1 is a case in which the structural central axis 13 formed in the structural part 10 of the screw power generator SG of the present invention is formed in the horizontal direction, but as shown in FIG. 2 , the structural central axis 13 is It is also possible to be formed in a vertical direction, although not shown, it is also possible to be formed to be inclined depending on the characteristics of the floor or structure on which the fixed shaft 12 is installed.
  • the central axis 13 of the structure of the structure 10 functions only as a central axis on which the screw-type blade 20 rotates without being rotated separately, it can be firmly fixed to the support end 11, thus structural stability. and robustness can be ensured.
  • one end of the structure central axis 13 of the structure 10 is fixed to the support end 11, but the other end is formed to be a free end.
  • the structure central axis 13 is manufactured in a cantilever type, even when a foreign material is caught on the screw-type blade 20 by the flow of a fluid, it can be easily removed through the free end.
  • one end of the structure central shaft 13 is fixed to the support end 11 and the other end can be formed as a free end, efficiency in installation and construction can be expected, and various members can be separated through the free end. Therefore, it has the advantage of easy maintenance.
  • the screw-type blade 20 is provided with a sleeve 21 so that the structure central axis 13 passes through, and screw blades 22 may be formed in a spiral on the outer circumferential surface of the sleeve 21 .
  • the length of the sleeve 21 and the number or size of the screw blades 22 formed on the outer circumferential surface may be appropriately designed according to the installation environment.
  • the rotational force of the screw-type blade 20 may be generated by being transmitted to the generator 33 through the rotational force transmitting unit 31 and the rotating force receiving unit 32 of the power generation unit 30 .
  • the power generation unit 30 is spaced apart from a fluid such as water as much as possible, thereby reducing frictional resistance caused by the fluid to promote power generation efficiency and to prevent oxidative corrosion of parts. do.
  • the power generation unit 30 may be manufactured as a gear bundle and the rotational force transmitting unit 31 and the rotating force receiving unit 32 formed at one end of the sleeve 21 may be made of a pulley or sprocket, although not shown. It can be manufactured and transmit power by a belt or chain.
  • the rotational force receiving unit 32 and the generator 33 of the power generation unit 30 may be formed in the structure unit 10 , but when the fluid is in water, the rotational force transmitting unit 31 of the power generation unit 30 ) may be formed so as to be formed on the free end side and exposed to the outside of the water surface.
  • the rotational force receiving part 32 and the generator 33 are formed on the mounting plate 34 fixed to the structure central axis 13 so that the power generation part 30 is entirely disposed outside the water surface. It is preferable to do
  • a rotation shaft 40 is additionally provided so that the structure central shaft 13 passes through, and the rotation shaft 40 is
  • the sleeve 21 of the screw-type blade 20 may be coupled to surround it.
  • the rotational force transmitting unit 31 is formed on the upper end of the rotating shaft 40 exposed outside the water surface, and the screw-type blade 20 is coupled only to the portion provided in the water, thereby reducing unnecessary self-weight to promote power generation efficiency. have.
  • the fixed shaft 12 of the structural part 10 is formed high in a post-type shape, and the rotational force receiving part of the power generation unit 30 is located at the upper end of the fixed shaft 12 exposed out of the water surface. (32) and a generator (33) may be provided.
  • the rotating force transmitting unit 31 is provided in the sleeve 21 of the screw-type blade 20, gears are provided at both ends between the rotating force transmitting unit 31 and the rotating force receiving unit 32.
  • a gear shaft 35 may be additionally provided.
  • the structure part 10 may additionally include a case 14 fixed to the ground or the structure.
  • the case 14 is provided with a fixing shaft 12 in a case 14 in which a pair of parallel supporting plates 14b are formed around the fixing plate 14a, so that both ends are fixed to the supporting plate 14b.
  • the case 14 may be provided to include a curved cover 14c so that only the structure central axis 13 is exposed to the outside.
  • a slit 14d may be formed in the case 14 so that the structure central axis 13 can rotate. It is preferable to prevent in advance so that floating foreign substances such as nets are caught by the curved cover 14c and the power generation efficiency is not lowered due to entanglement with the screw.
  • the fixing cap 15 is fastened to the upper end of the screw-type blade ( 20) can be prevented, and the screw-type blade 20 can be assembled and separated by using the fixing cap 15, and the screw-type blade 20 is also provided on the rotating shaft 40 provided according to the embodiment. It may be combined by selectively changing a position through a fastening means, or assembly and separation may be made for maintenance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydraulic Turbines (AREA)

Abstract

The present invention relates to a screw-type power generation apparatus having a variable free end. To this end, the screw-type power generation apparatus having a variable free end, of the present invention, comprises: a structure part having a support end provided to be rotatable with respect to a fixed shaft, and having a structure center shaft formed such that, in a state in which one end thereof is fixed to the support end, the other end thereof is a free end; a screw-type blade having a sleeve through which the structure center shaft passes, and having a screw blade formed in a spiral shape on the outer peripheral surface of the sleeve; and a power generation part for producing power by using the rotary force of the screw-type blade. Therefore, the support end to which the structure center shaft is fixed is provided to be rotatable relative to the fixed shaft so that the inclination angle thereof can vary in correspondence to the flow direction of fluid, which changes over time, and thus optimal power generation efficiency can be expected.

Description

가변형 자유단을 지니는 스크류 발전장치 Screw generator with variable free end
본 발명은 가변형 자유단을 지니는 스크류 발전장치에 관한 것으로, 보다 상세하게는 구조부의 지지단이 고정축을 중심으로 회전 가능하게 구비되고, 상기 지지단에 구조 중심축이 형성되며, 스크류형 블레이드는 구조 중심축이 관통하는 슬리브의 외주면에 나선형으로 스크류 날개가 형성되어 발전부가 상기 스크류형 블레이드의 회전력을 이용하여 동력을 생산하는 가변형 자유단을 지니는 스크류 발전장치에 관한 것이다.The present invention relates to a screw power generation device having a variable free end, and more particularly, a support end of a structure is provided rotatably about a fixed axis, a structure central axis is formed at the support end, and the screw-type blade has a structure It relates to a screw power generation device having a variable free end in which screw blades are spirally formed on the outer circumferential surface of the sleeve through which the central axis passes, and the power generation unit generates power using the rotational force of the screw type blade.
최근에는 환경과 안전에 대한 관심이 증가되면서 화석연료를 이용한 화력발전이나 원자력 발전에서 벗어나 자연 에너지를 이용하는 신재생 에너지에 대한 지원과 기술개발이 활발히 이루어지고 있다. 이러한 일환으로 바람이나 해수와 같은 유체를 이용하여 에너지를 생산하기 위한 노력들이 이루어지고 있으나, 시시각각 변화하는 유체의 특성상 안정적인 유체 흐름을 확보하기 어렵고, 그로인해 발전 효율도 저하될 수밖에 없는 한계가 있었다.Recently, as interest in environment and safety has increased, support for and technology development for new and renewable energy using natural energy, away from thermal power generation using fossil fuels or nuclear power generation, is being actively performed. Efforts have been made to produce energy using fluids such as wind or seawater as part of this, but it is difficult to secure a stable fluid flow due to the nature of the fluid that changes every moment, and there is a limit in that power generation efficiency cannot but be reduced.
한편, 종래의 유체를 이용한 발전방식은 프로펠러를 이용한 방식이었으나, 유체의 방향이 프로펠러의 정면으로 향하지 않으면 발전량 확보에 어려움이 있었으며, 수중 프로펠러(수차)의 경우에는 수심과 설치 환경에 따른 제약이 동반되고, 어폐류의 점착이나 염분에 의한 부식이 발생되어 발전 효율이 저하되고, 유지 관리가 어려운 문제점이 있었다.On the other hand, the conventional power generation method using a fluid was a method using a propeller, but if the direction of the fluid was not directed to the front of the propeller, it was difficult to secure the amount of power generation. and corrosion due to adhesion or salt of fish and shellfish occurs, resulting in reduced power generation efficiency, and difficult maintenance.
이에 출원인은 수차의 형상을 스크류형으로 제작하여 유체의 흐름방향(유속)에 회전축이 나란하게 배치되도록 함으로써 효율적인 발전이 이루어지도록 대한민국등록특허 제10-1646659호 "자유 조절 발전 장치"(2016. 8. 2. 등록)가 제안된 바 있다.Accordingly, the applicant made the shape of the water wheel into a screw type so that the rotating shafts are arranged side by side in the flow direction (flow velocity) of the fluid, so that efficient power generation can be achieved, Republic of Korea Patent No. 10-1646659 "Freely adjustable power generation device" (2016. 8. 2. Registration) has been proposed.
그러나, 종래의 스크류형 수차는 회전축이 유체의 흐름방향과 나란하게 배치됨에 따라 유체와 맞닿는 전방 스크류 날개의 회전력에 전적으로 의존하는 한계가 있었으며, 후방 스크류 날개는 전방 스크류 날개에 의하여 야기되는 와류로 인하여 충분한 회전력이 확보되지 못하여 발전 효율이 급격히 저하되는 문제점이 있었다.However, the conventional screw-type aberration has a limitation in that it completely depends on the rotational force of the front screw blade in contact with the fluid as the rotation shaft is arranged parallel to the flow direction of the fluid, and the rear screw blade has a vortex caused by the front screw blade. There was a problem in that the power generation efficiency was rapidly lowered because sufficient rotational force was not secured.
한편, 출원인은 대한민국특허출원 제10-2020-0011212호(이하 '선행기술문헌'이라 한다)를 출원하여 스크류형 블레이드를 이용하면서도 와류 현상에 의한 효율저감의 문제를 극복하고, 스크류형 블레이드의 길이에 비례하여 발전량을 확보할 수 있도록 유체의 흐름방향과 스크류형 블레이드의 회전축이 일정 각도를 형성하도록 설치하는 방법을 제안한 바 있다.On the other hand, the applicant applied for Korean Patent Application No. 10-2020-0011212 (hereinafter referred to as 'prior art literature') to overcome the problem of efficiency reduction due to the vortex phenomenon while using a screw-type blade, and the length of the screw-type blade A method in which the flow direction of the fluid and the rotational axis of the screw-type blade form a predetermined angle to secure the amount of power in proportion to .
그러나, 바람이나 조류와 같이 유체는 시간에 따라 흐름방향이 180도 변경되는 경우가 있으나, 상기 선행기술문헌에 의한 스크류 발전장치는 회전축이 한 번 시공되면 그 방향을 가변하기 어려운 한계가 있었다. 즉, 유체의 흐름방향에 가변적으로 각도를 변경하기 어려운 단점이 있었으며, 회전축의 양 단이 구조물에 고정됨에 따라 유지 보수가 곤란하고, 회전력을 이용하여 발전함에 있어서도 충분한 효율을 확보하지 못하는 한계가 있었다.However, the flow direction of a fluid such as wind or current may be changed 180 degrees over time, but the screw power generator according to the prior art document has a limitation in that it is difficult to change the direction once the rotating shaft is constructed. That is, there was a disadvantage in that it was difficult to change the angle variably in the flow direction of the fluid, and as both ends of the rotating shaft were fixed to the structure, maintenance was difficult, and there was a limitation in that it was not possible to secure sufficient efficiency even in power generation using rotational force. .
본 발명은 상기한 문제점을 해결하기 위하여 제안된 것으로, 시간에 따라 변화하는 유체의 흐름방향에 대응되도록 각도가 가변될 수 있으며, 그럼에도 구조적 견고성과 안정성을 확보할 수 있고, 설치 시공에 효율을 기대할 수 있으며, 유지 관리가 용이하고, 발전 효율을 도모할 수 있는 가변형 자유단을 지니는 스크류 발전장치를 제안하는데 그 목적이 있다.The present invention has been proposed to solve the above problems, and the angle can be changed to correspond to the flow direction of the fluid that changes with time, and it is possible to secure structural rigidity and stability nonetheless, and to expect efficiency in installation and construction It is an object of the present invention to propose a screw power generator having a variable free end that can be easily maintained and can promote power generation efficiency.
상기한 기술적 과제를 해결하기 위하여 본 발명의 가변형 자유단을 지니는 스크류 발전장치(SG)는, 지지단(11)이 고정축(12)에 대하여 회전 가능하게 구비되고, 상기 지지단(11)에 일단이 고정된 상태로 타단은 자유단이 되도록 구조 중심축(13)이 형성되는 구조부(10); 상기 구조 중심축(13)이 관통하도록 슬리브(21)가 구비되고, 상기 슬리브(21)의 외주면에 나선형으로 스크류 날개(22)가 형성되는 스크류형 블레이드(20); 및 상기 스크류형 블레이드(20)의 회전력을 이용하여 동력을 생산하는 발전부(30);를 포함한다.In order to solve the above technical problem, the screw power generation device (SG) having a variable free end of the present invention is provided with a support end 11 rotatably with respect to a fixed shaft 12, and the support end 11 is a structure portion 10 having a central axis 13 formed thereon so that one end is fixed and the other end is a free end; a screw-type blade 20 having a sleeve 21 through which the structure central axis 13 penetrates, and having screw blades 22 spirally formed on an outer circumferential surface of the sleeve 21; and a power generation unit 30 for generating power by using the rotational force of the screw-type blade 20 .
또한, 상기 구조 중심축(13)이 관통하도록 회전축(40)이 구비되고, 상기 회전축(40)을 에워싸도록 스크류형 블레이드(20)의 슬리브(21)가 결합될 수 있다.In addition, the rotating shaft 40 is provided so that the structure central axis 13 passes through, and the sleeve 21 of the screw-type blade 20 may be coupled to surround the rotating shaft 40 .
또한, 상기 발전부(30)는 슬리브(21) 또는 회전축(40)의 일측 단부에 회전력 전달부(31)가 형성되고, 상기 회전력 전달부(31)의 동력을 전달받는 회전력 수용부(32)가 형성되며, 상기 회전력 수용부(32)의 동력을 이용하여 발전하는 발전기(33)를 포함할 수 있다.In addition, the power generation unit 30 has a rotational force transmitting unit 31 is formed at one end of the sleeve 21 or the rotating shaft 40 , and a rotating force receiving unit 32 that receives power from the rotating force transmitting unit 31 . is formed, and may include a generator 33 that generates power using the power of the rotational force receiving unit 32 .
또한, 상기 발전부(30)의 회전력 수용부(32)와 발전기(33)는 구조부(10)에 형성될 수 있다.In addition, the rotational force receiving unit 32 and the generator 33 of the power generation unit 30 may be formed in the structure unit (10).
또한, 상기 발전부(30)의 회전력 전달부(31)는 자유단 측에 형성되고, 구조 중심축(13)에 고정된 거치 플레이트(34)에 회전력 수용부(32)와 발전기(33)가 형성될 수 있다.In addition, the rotating force transmitting unit 31 of the power generation unit 30 is formed on the free end side, and the rotating force receiving unit 32 and the generator 33 are provided on the mounting plate 34 fixed to the structure central axis 13 . can be formed.
또한, 상기 구조부(10)는 고정 플레이트(14a)를 중심으로 한 쌍의 평행한 지지 플레이트(14b)가 형성된 케이스(14)에 고정축(12)이 구비되어 양 단이 지지 플레이트(14a)에 고정될 수 있다.In addition, the structural part 10 is provided with a fixing shaft 12 in a case 14 in which a pair of parallel support plates 14b are formed around the fixing plate 14a, so that both ends are attached to the support plate 14a. can be fixed.
그리고 상기 구조부(10)의 고정축(12)에는 양 측에 각도 제한면(12a)이 마련되고, 상기 지지단(11)에는 걸림 리브(11a)가 형성되어 지지단(11)의 회전 각도가 유체의 흐름방향과 수직되는 방향을 중심으로 일정 각도(+θ, -θ)로 제한될 수 있다.And angle limiting surfaces 12a are provided on both sides of the fixed shaft 12 of the structural part 10, and a locking rib 11a is formed on the support end 11 so that the rotation angle of the support end 11 is It may be limited to a predetermined angle (+θ, -θ) around a direction perpendicular to the flow direction of the fluid.
본 발명의 가변형 자유단을 지니는 스크류 발전장치(SG)에 의하면, 구조 중심축이 고정된 지지단이 고정축에 대하여 상대 회전 가능하게 구비되므로 시간에 따라 변화하는 유체의 흐름방향에 대응되도록 경사 각도가 가변될 수 있다.According to the screw power generation device (SG) having a variable free end of the present invention, since the support end to which the structure central axis is fixed is provided rotatably relative to the fixed axis, the inclination angle to correspond to the flow direction of the fluid that changes with time may be variable.
이로써, 유체의 흐름방향이 변화하더라도 그에 상응되도록 구조 중심축의 각도가 가변될 수 있으므로 최적의 발전 효율이 확보될 수 있다.Accordingly, even if the flow direction of the fluid is changed, the angle of the central axis of the structure can be changed to correspond to it, so that optimum power generation efficiency can be secured.
또한, 상기 구조 중심축은 별도로 회전됨이 없이 스크류형 블레이드가 회전하는 중심축으로서만 기능하므로 지지단에 견고하게 고정할 수 있으므로, 구조적 안정성과 견고성을 확보할 수 있다.In addition, since the central axis of the structure functions only as a central axis on which the screw-type blade rotates without being rotated separately, it can be firmly fixed to the support end, thereby securing structural stability and rigidity.
나아가, 상기 구조 중심축은 일단이 지지단에 고정될 뿐, 타단은 자유단으로 형성될 수 있으므로, 설치 시공에 효율을 기대할 수 있으며, 유지 관리가 용이한 이점이 있다.Furthermore, since one end of the central axis of the structure is fixed to the support end and the other end can be formed as a free end, efficiency in installation and construction can be expected, and maintenance is easy.
뿐만 아니라, 유체에 부유하는 이물질 등이 걸리더라도 자유단으로 형성된 타단을 통하여 쉽게 제거될 수 있다.In addition, even if foreign substances floating in the fluid are caught, they can be easily removed through the other end formed as a free end.
또한, 상기 구조 중심축에 별도의 회전축을 구비하고, 흐름을 형성하는 유체와 맞닿는 부분에만 상기 회전축을 에워싸도록 스크류형 블레이드를 구비함으로써 발전 효율을 도모할 수 있다.In addition, it is possible to achieve power generation efficiency by providing a separate rotation shaft on the central shaft of the structure, and providing a screw-type blade so as to surround the rotation shaft only in a portion in contact with the fluid forming a flow.
실시 형태에 따라서는, 회전력 전달부와 회전달 수용부를 포함하는 발전부의 위치를 유체로부터 이격시킴으로써 유체에 의한 효율의 저하를 극복하고, 부속의 부식을 방지할 수 있다.According to the embodiment, by separating the position of the power generation unit including the rotational force transmitting unit and the rotating moon receiving unit from the fluid, it is possible to overcome the decrease in efficiency due to the fluid and prevent corrosion of the parts.
그리고 상기 구조 중심축의 경사 각도를 최적의 효율이 발휘될 수 있는 특정 각도로 제한함으로써 발전 효율이 도모될 수 있다.In addition, power generation efficiency can be achieved by limiting the inclination angle of the central axis of the structure to a specific angle at which optimum efficiency can be exhibited.
도 1은 본 발명의 일 실시예에 따른 스크류 발전장치를 도시한 사시도.1 is a perspective view showing a screw generator according to an embodiment of the present invention.
도 2 및 3은 본 발명의 다양한 실시예에 따른 스크류 발전장치를 도시한 사시도.2 and 3 are perspective views showing a screw generator according to various embodiments of the present invention.
도 4는 도 1에 따른 스크류 발전장치의 변형 실시형태를 도시한 사시도.Figure 4 is a perspective view showing a modified embodiment of the screw generator according to Figure 1;
도 5는 본 발명의 다른 실시예에 따른 스크류 발전장치를 도시한 다면도.5 is a cross-sectional view showing a screw generator according to another embodiment of the present invention.
본 발명은 최선의 형태로, The present invention in its best form,
지지단(11)이 고정축(12)에 대하여 회전 가능하게 구비되고, 상기 지지단(11)에 일단이 고정된 상태로 타단은 자유단이 되도록 구조 중심축(13)이 형성되는 구조부(10); 상기 구조 중심축(13)이 관통하도록 슬리브(21)가 구비되고, 상기 슬리브(21)의 외주면에 나선형으로 스크류 날개(22)가 형성되는 스크류형 블레이드(20); 및 상기 스크류형 블레이드(20)의 회전력을 이용하여 동력을 생산하는 발전부(30); 를 포함하는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치를 제시한다. The support end 11 is provided rotatably with respect to the fixed shaft 12, and the structure central axis 13 is formed so that the other end becomes a free end while one end is fixed to the support end 11. ); a screw-type blade 20 having a sleeve 21 through which the structure central axis 13 penetrates, and having screw blades 22 spirally formed on an outer circumferential surface of the sleeve 21; and a power generation unit 30 for generating power using the rotational force of the screw-type blade 20; It provides a screw power generator having a variable free end, characterized in that it comprises a.
이하, 본 발명의 실시예를 첨부된 도면들을 참조하여 더욱 상세하게 설명한다. 본 발명의 실시예는 여러가지 형태로 변형할 수 있으며, 본 발명의 범위가 아래의 실시예들로 한정되는 것으로 해석되어서는 안된다. 본 실시예는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위해 제공되는 것이다.Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following examples. This example is provided to more completely explain the present invention to those of ordinary skill in the art.
도 1은 본 발명의 일 실시예에 따른 가변형 자유단을 지니는 스크류 발전장치(SG)를 도시한 것으로, 구조적 역할을 수행하는 구조부(10), 유체의 흐름에 따라 회전력을 발생시키는 스크류형 블레이드(20), 그리고 회전력을 이용하여 전력을 생산하는 발전부(30)로 구성된다.1 shows a screw power generation device (SG) having a variable free end according to an embodiment of the present invention, a structural part 10 performing a structural role, a screw-type blade generating a rotational force according to the flow of a fluid ( 20), and a power generation unit 30 that generates electric power using rotational force.
상기 구조부(10)는 지면이나 구조물에 고정 구비되어 하중을 수용 전달하는 고정축(12)에 지지단(11)이 상대 회전이 가능하도록 구비된다. 상기 지지단(11)에는 구조 중심축(13)의 일단이 고정되며, 상기 구조 중심축(13)은 후술할 스크류형 블레이드(20)가 회전될 수 있도록 중심축으로서 기능하므로, 유체에 의하여 발생되는 하중이나 스크류형 블레이드(20)의 자중은 구조 중심축(13)으로 전달되고, 상기 지지단(11)을 매개로 고정축(12)에 전달된다.The structural part 10 is provided so that the support end 11 is relatively rotatable to the fixed shaft 12 that is fixed to the ground or the structure and receives and transmits a load. One end of the structural central shaft 13 is fixed to the support end 11 , and the structural central shaft 13 functions as a central shaft so that a screw-type blade 20 , which will be described later, can be rotated, so it is generated by a fluid The load or the self-weight of the screw-type blade 20 is transmitted to the structure central axis 13 , and is transmitted to the fixed shaft 12 via the support end 11 .
도 1에 도시된 바와 같이 상기 지지단(11)은 고정축(12)에 대하여 상대 회전이 가능하도록 고정축(12)을 에워싸는 형상으로 형성될 수도 있으나, 상기 지지단(11)이 내측에 회전 가능하게 구비되고, 상기 지지단(11)을 에워싸도록 외측에 고정축(12)이 고정 구비될 수도 있다.1, the support end 11 may be formed in a shape surrounding the fixed shaft 12 to enable relative rotation with respect to the fixed shaft 12, but the support end 11 is rotated inside It is possible, and the fixing shaft 12 may be fixed to the outside so as to surround the support end 11 .
한편, 상기 구조 중심축(13)은 지지단(11)에 의하여 회전이 가능하므로, 일방향으로 유체의 흐름방향이 형성되면 그에 종속되어 회전 각도도 자연스럽게 가변되어진다. 시간의 경과에 따라 유체의 흐름방향이 180도 변경되면 마찬가지로 구조 중심축(13)의 회전 각도도 자연스럽게 가변되어진다.On the other hand, since the structure central axis 13 is rotatable by the support end 11 , when the flow direction of the fluid is formed in one direction, the rotation angle is naturally varied depending on it. If the flow direction of the fluid is changed by 180 degrees over time, the rotation angle of the structure central axis 13 is also naturally varied.
즉, 상기 구조부(10)의 고정축(12)은 유체의 흐름방향과 수직되는 방향을 중심으로 양측으로 각도 제한면(12a)이 마련되고, 상기 지지단(11)에는 걸림 리브(11a)가 형성되어 지지단(11)의 회전 각도가 유체의 흐름방향과 수직되는 방향을 중심으로 일정 각도(+θ, -θ)를 형성하는 위치로 제한될 수 있다.That is, the fixed shaft 12 of the structural part 10 is provided with angle limiting surfaces 12a on both sides with respect to a direction perpendicular to the flow direction of the fluid, and a locking rib 11a is provided on the support end 11 . It is formed so that the rotation angle of the support end 11 may be limited to a position forming a predetermined angle (+θ, -θ) with respect to a direction perpendicular to the flow direction of the fluid.
본 발명의 가변형 자유단을 지니는 스크류 발전장치(SG)는 스크류형 블레이드(20)의 회전축이 유체의 흐름방향과 특정한 경사각도를 형성하는 경우에 가장 이상적인 회전효율을 발생시킬 수 있다는 점에 착안하여 제안된 것으로, 상기 각도값(+θ, -θ)은 스크류형 블레이트(20)를 구성하는 스크류 날개(22)의 형상(헬릭스각, 외측 경사각)과 직경 등에 의하여 가변될 수 있다.The screw generator (SG) having a variable free end of the present invention can generate the most ideal rotational efficiency when the rotational shaft of the screw-type blade 20 forms a specific inclination angle with the flow direction of the fluid. As suggested, the angle values (+θ, -θ) may be varied depending on the shape (helix angle, outer inclination angle) and diameter of the screw blades 22 constituting the screw-type blade 20 .
따라서, 상기 구조 중심축(13)이 고정된 지지단(11)이 고정축(12)에 대하여 상대 회전 가능하게 구비되므로 시간에 따라 변화하는 유체의 흐름방향에 대응되도록 경사 각도값(+θ, -θ)이 선택적으로 변경될 수 있다. 이로써, 유체의 흐름방향이 변화하더라도 그에 상응되도록 구조 중심축의 각도가 가변될 수 있으므로 최적의 발전 효율이 확보될 수 있다.Therefore, since the support end 11 to which the structure central axis 13 is fixed is provided rotatably relative to the fixed axis 12, the inclination angle value (+θ, -θ) can be optionally changed. Accordingly, even if the flow direction of the fluid is changed, the angle of the central axis of the structure can be changed to correspond to it, so that optimum power generation efficiency can be secured.
이때, 도 1 내지 도 3에 도시된 바와 같이 지지단(11)이 고정축(12)을 에워싸는 형상으로 형성되는 실시형태에 있어서, 상기 고정축(12)의 일측에 형성된 각도 제한면(12a)을 덮고 지지단(11)의 이탈이 방지되도록 커버(12b)가 추가로 형성될 수 있다.At this time, in the embodiment in which the support end 11 is formed in a shape surrounding the fixed shaft 12 as shown in FIGS. 1 to 3 , the angle limiting surface 12a formed on one side of the fixed shaft 12 ) A cover 12b may be additionally formed to cover and prevent separation of the support end 11 .
한편, 도 1은 본 발명의 스크류 발전장치(SG)의 구조부(10)에 형성된 구조 중심축(13)이 수평 방향으로 형성되는 경우이나, 도 2에 도시된 바와 같이 구조 중심축(13)이 수직 방향으로 형성되는 것도 가능하며, 비록 도시하지 않았으나 고정축(12)이 설치되는 바닥이나 구조물의 특성에 따라서는 경사지게 형성되는 것도 가능하다.On the other hand, FIG. 1 is a case in which the structural central axis 13 formed in the structural part 10 of the screw power generator SG of the present invention is formed in the horizontal direction, but as shown in FIG. 2 , the structural central axis 13 is It is also possible to be formed in a vertical direction, although not shown, it is also possible to be formed to be inclined depending on the characteristics of the floor or structure on which the fixed shaft 12 is installed.
나아가, 상기 구조부(10)의 구조 중심축(13)은 별도로 회전됨이 없이 스크류형 블레이드(20)가 회전하는 중심축으로서만 기능하므로 지지단(11)에 견고하게 고정할 수 있으므로, 구조적 안정성과 견고성을 확보할 수 있다.Furthermore, since the central axis 13 of the structure of the structure 10 functions only as a central axis on which the screw-type blade 20 rotates without being rotated separately, it can be firmly fixed to the support end 11, thus structural stability. and robustness can be ensured.
또한, 본 발명의 가변형 자유단을 지니는 스크류 발전장치(SG)는 구조부(10)의 구조 중심축(13)의 일단은 상기 지지단(11)에 고정되나, 타단은 자유단이 되도록 형성되는 점에도 차별성이 존재한다. 즉, 상기 구조 중심축(13)은 캔틸레버형으로 제작되므로, 유체의 흐름에 의하여 이물질이 스크류형 블레이드(20)에 걸리는 경우에도 자유단을 통하여 쉽게 제거될 수 있다.In addition, in the screw generator SG having a variable free end of the present invention, one end of the structure central axis 13 of the structure 10 is fixed to the support end 11, but the other end is formed to be a free end. There are also differences. That is, since the structure central axis 13 is manufactured in a cantilever type, even when a foreign material is caught on the screw-type blade 20 by the flow of a fluid, it can be easily removed through the free end.
뿐만 아니라, 상기 구조 중심축(13)은 일단이 지지단(11)에 고정될 뿐, 타단은 자유단으로 형성될 수 있으므로 설치 시공에 효율을 기대할 수 있으며, 자유단을 통하여 각종 부재를 분리할 수 있으므로 유지 관리가 용이한 이점이 있다.In addition, since one end of the structure central shaft 13 is fixed to the support end 11 and the other end can be formed as a free end, efficiency in installation and construction can be expected, and various members can be separated through the free end. Therefore, it has the advantage of easy maintenance.
한편, 상기 스크류형 블레이트(20)는 상기 구조 중심축(13)이 관통하도록 슬리브(21)가 구비되고, 상기 슬리브(21)의 외주면에 나선형으로 스크류 날개(22)가 형성될 수 있다. 이때, 상기 슬리브(21)의 길이와 외주면에 형성되는 스크류 날개(22)의 개수나 크기 등은 설치환경에 따라 적절히 설계될 수 있다.On the other hand, the screw-type blade 20 is provided with a sleeve 21 so that the structure central axis 13 passes through, and screw blades 22 may be formed in a spiral on the outer circumferential surface of the sleeve 21 . At this time, the length of the sleeve 21 and the number or size of the screw blades 22 formed on the outer circumferential surface may be appropriately designed according to the installation environment.
또한, 상기 스크류형 블레이드(20)의 회전력은 발전부(30)의 회전력 전달부(31)와 회전력 수용부(32)를 거쳐 발전기(33)에 전달됨으로써 발전할 수 있다. 이때, 상기 발전부(30)는 가급적 수중과 같은 유체로부터 이격 배치되는 것이 바람직하며, 이로써 유체에 의한 마찰 저항을 감소시켜 발전 효율을 도모할 수 있을 뿐만 아니라, 부속의 산화 부식을 방지할 수 있게 된다.In addition, the rotational force of the screw-type blade 20 may be generated by being transmitted to the generator 33 through the rotational force transmitting unit 31 and the rotating force receiving unit 32 of the power generation unit 30 . At this time, it is preferable that the power generation unit 30 is spaced apart from a fluid such as water as much as possible, thereby reducing frictional resistance caused by the fluid to promote power generation efficiency and to prevent oxidative corrosion of parts. do.
일 실시예로, 상기 발전부(30)는 슬리브(21)의 일측 단부에 형성되는 회전력 전달부(31)와 회전력 수용부(32)는 기어 뭉치로 제작될 수 있으며, 도시하지 않았으나 풀리나 스프로킷으로 제작되어 벨트나 체인에 의하여 동력을 전달할 수도 있다.In one embodiment, the power generation unit 30 may be manufactured as a gear bundle and the rotational force transmitting unit 31 and the rotating force receiving unit 32 formed at one end of the sleeve 21 may be made of a pulley or sprocket, although not shown. It can be manufactured and transmit power by a belt or chain.
이때, 상기 발전부(30)의 회전력 수용부(32)와 발전기(33)는 구조부(10)에 형성될 수도 있으나, 유체가 수중인 경우에는 상기 발전부(30)의 회전력 전달부(31)는 자유단 측에 형성되어 수면밖으로 노출되도록 형성될 수 있다. 또한, 도 3에 도시된 바와 같이 상기 구조 중심축(13)에 고정된 거치 플레이트(34)에 회전력 수용부(32)와 발전기(33)가 형성되어 발전부(30)가 전체적으로 수면밖에 배치되도록 함이 바람직하다.At this time, the rotational force receiving unit 32 and the generator 33 of the power generation unit 30 may be formed in the structure unit 10 , but when the fluid is in water, the rotational force transmitting unit 31 of the power generation unit 30 ) may be formed so as to be formed on the free end side and exposed to the outside of the water surface. In addition, as shown in FIG. 3 , the rotational force receiving part 32 and the generator 33 are formed on the mounting plate 34 fixed to the structure central axis 13 so that the power generation part 30 is entirely disposed outside the water surface. It is preferable to do
한편, 본 발명의 가변형 자유단을 지니는 스크류 발정장치(SG)는, 도 3에 도시된 바와 같이 상기 구조 중심축(13)이 관통하도록 회전축(40)이 추가적으로 구비되고, 상기 회전축(40)을 에워싸도록 스크류형 블레이드(20)의 슬리브(21)가 결합될 수 있다.On the other hand, in the screw estrus device SG having a variable free end of the present invention, as shown in FIG. 3 , a rotation shaft 40 is additionally provided so that the structure central shaft 13 passes through, and the rotation shaft 40 is The sleeve 21 of the screw-type blade 20 may be coupled to surround it.
이때, 수면밖으로 노출된 상기 회전축(40)의 상단에 회전력 전달부(31)가 형성되고, 수중에 구비되는 부분에만 스크류형 블레이드(20)가 결합되어 불필요한 자중을 감소시켜 발전 효율을 도모할 수 있다.At this time, the rotational force transmitting unit 31 is formed on the upper end of the rotating shaft 40 exposed outside the water surface, and the screw-type blade 20 is coupled only to the portion provided in the water, thereby reducing unnecessary self-weight to promote power generation efficiency. have.
또한, 도 4에 도시된 바와 같이 상기 구조부(10)의 고정축(12)은 지주형으로 높게 형성하고, 상기 수면밖으로 노출된 고정축(12)의 상단에 발전부(30)의 회전력 수용부(32)와 발전기(33)를 구비할 수 있다. 다만, 상기 스크류형 블레이드(20)의 슬리브(21)에 회전력 전달부(31)는 수중에 구비되므로, 상기 회전력 전달부(31)와 회전력 수용부(32) 사이에 양 단에 기어가 구비된 기어축(35)이 추가적으로 구비될 수 있다.In addition, as shown in FIG. 4 , the fixed shaft 12 of the structural part 10 is formed high in a post-type shape, and the rotational force receiving part of the power generation unit 30 is located at the upper end of the fixed shaft 12 exposed out of the water surface. (32) and a generator (33) may be provided. However, since the rotating force transmitting unit 31 is provided in the sleeve 21 of the screw-type blade 20, gears are provided at both ends between the rotating force transmitting unit 31 and the rotating force receiving unit 32. A gear shaft 35 may be additionally provided.
나아가, 도 2 내지 도 4에 도시된 바와 같이 상기 구조부(10)는 지면 또는 구조물에 고정되는 케이스(14)를 추가적으로 구비할 수 있다. 상기 케이스(14)는 고정 플레이트(14a)를 중심으로 한 쌍의 평행한 지지 플레이트(14b)가 형성된 케이스(14)에 고정축(12)이 구비되어 양 단이 지지 플레이트(14b)에 고정될 수 있다.Furthermore, as shown in FIGS. 2 to 4 , the structure part 10 may additionally include a case 14 fixed to the ground or the structure. The case 14 is provided with a fixing shaft 12 in a case 14 in which a pair of parallel supporting plates 14b are formed around the fixing plate 14a, so that both ends are fixed to the supporting plate 14b. can
특히, 도 5에 도시된 바와 같이 상기 케이스(14)는 곡면형 커버(14c)를 포함하도록 형성되어 구조 중심축(13)만이 외측으로 노출되도록 구비될 수 있다. 이때, 상기 케이스(14)에는 구조 중심축(13)이 회전할 수 있도록 슬릿(14d)이 형성될 수 있다. 상기 곡면형 커버(14c)에 의하여 그물과 같은 부유 이물질이 걸려 스크류와 얽힘에 따라 발전효율이 저하되지 않도록 미연에 방지하는 것이 바람직하다.In particular, as shown in FIG. 5 , the case 14 may be provided to include a curved cover 14c so that only the structure central axis 13 is exposed to the outside. At this time, a slit 14d may be formed in the case 14 so that the structure central axis 13 can rotate. It is preferable to prevent in advance so that floating foreign substances such as nets are caught by the curved cover 14c and the power generation efficiency is not lowered due to entanglement with the screw.
또한, 본 발명의 구조부(10)에 형성된 구조 중심축(13)에 스크류형 블레이드(20)의 슬리브(21)가 관통되도록 구비한 후, 상단에 고정캡(15)을 체결하여 스크류형 블레이드(20)의 이탈을 방지할 수 있으며, 상기 고정캡(15)을 이용하여 스크류형 블레이드(20)의 조립 및 분리가 가능하고, 실시형태에 따라 구비되는 회전축(40)에도 스크류형 블레이드(20)가 체결수단을 매개로 선택적으로 위치를 달리하여 결합되거나, 유지 보수를 위해 조립 및 분리가 이루어질 수 있다.In addition, after providing the sleeve 21 of the screw-type blade 20 to pass through the structure central axis 13 formed in the structure 10 of the present invention, the fixing cap 15 is fastened to the upper end of the screw-type blade ( 20) can be prevented, and the screw-type blade 20 can be assembled and separated by using the fixing cap 15, and the screw-type blade 20 is also provided on the rotating shaft 40 provided according to the embodiment. It may be combined by selectively changing a position through a fastening means, or assembly and separation may be made for maintenance.
본 발명의 가변형 자유단을 지니는 스크류 발전장치(SG)의 실시예들을 중심으로 설명 기술하였으나, 해당 기술분야에서 통상의 지식을 가진 자라면 청구범위에 기재된 본 발명의 사상으로부터 벗어나지 않는 범위 내에서 구성요소의 부가, 변경, 삭제 또는 추가 등에 의해 본 발명을 다양하게 수정 및 변경하여 실시할 수 있을 것이며, 이 또한 본 발명의 권리범위에 포함된다고 할 것이다.Although the embodiments of the screw power generation device (SG) having a variable free end of the present invention have been described and described, those of ordinary skill in the art are configured within the scope not departing from the spirit of the present invention described in the claims The present invention may be variously modified and changed by addition, change, deletion or addition of elements, and this will also be included in the scope of the present invention.
나아가, 본 발명의 실시예들을 설명함에 있어서 공지된 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략하고 있다. 그리고 상기에서 사용된 용어들은 본 발명의 실시예에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운영자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다. 따라서, 이상의 발명의 상세한 설명은 개시된 실시 상태로 본 발명을 제한하려는 의도가 아니며, 첨부된 청구범위는 다른 실시 상태도 포함하는 것으로 해석되어야 한다.Furthermore, in describing the embodiments of the present invention, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted. And, the terms used in the above are terms defined in consideration of functions in the embodiment of the present invention, which may vary according to the intention or custom of the user or operator. Therefore, the definition should be made based on the content throughout this specification. Accordingly, the detailed description of the present invention is not intended to limit the present invention to the disclosed embodiments, and the appended claims should be construed as including other embodiments.

Claims (7)

  1. 지지단(11)이 고정축(12)에 대하여 회전 가능하게 구비되고, 상기 지지단(11)에 일단이 고정된 상태로 타단은 자유단이 되도록 구조 중심축(13)이 형성되는 구조부(10);The support end 11 is provided rotatably with respect to the fixed shaft 12, and the structure central axis 13 is formed so that the other end becomes a free end while one end is fixed to the support end 11. );
    상기 구조 중심축(13)이 관통하도록 슬리브(21)가 구비되고, 상기 슬리브(21)의 외주면에 나선형으로 스크류 날개(22)가 형성되는 스크류형 블레이드(20); 및a screw-type blade 20 having a sleeve 21 through which the structure central axis 13 penetrates, and having screw blades 22 spirally formed on an outer circumferential surface of the sleeve 21; and
    상기 스크류형 블레이드(20)의 회전력을 이용하여 동력을 생산하는 발전부(30);a power generation unit 30 for generating power using the rotational force of the screw-type blade 20;
    를 포함하는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.A screw generator having a variable free end, characterized in that it comprises a.
  2. 제1항에 있어서,According to claim 1,
    상기 구조 중심축(13)이 관통하도록 회전축(40)이 구비되고, 상기 회전축(40)을 에워싸도록 스크류형 블레이드(20)의 슬리브(21)가 결합되는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.A rotating shaft 40 is provided so that the structure central axis 13 passes through, and the sleeve 21 of the screw-type blade 20 is coupled to surround the rotating shaft 40. It has a variable free end. screw generator.
  3. 제1항 또는 제2항에 있어서,3. The method of claim 1 or 2,
    상기 발전부(30)는 슬리브(21) 또는 회전축(40)의 일측 단부에 회전력 전달부(31)가 형성되고, 상기 회전력 전달부(31)의 동력을 전달받는 회전력 수용부(32)가 형성되며, 상기 회전력 수용부(32)의 동력을 이용하여 발전하는 발전기(33)를 포함하는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.The power generation unit 30 has a rotational force transmitting unit 31 formed at one end of the sleeve 21 or the rotating shaft 40 , and a rotating force receiving unit 32 receiving power from the rotating force transmitting unit 31 is formed. and a screw power generator having a variable free end, characterized in that it includes a generator (33) that generates electricity using the power of the rotational force receiving unit (32).
  4. 제3항에 있어서,4. The method of claim 3,
    상기 발전부(30)의 회전력 수용부(32)와 발전기(33)는 구조부(10)에 형성되는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.A screw power generation device having a variable free end, characterized in that the rotational force receiving portion 32 and the generator 33 of the power generation unit 30 are formed in the structure portion (10).
  5. 제3항에 있어서,4. The method of claim 3,
    상기 발전부(30)의 회전력 전달부(31)는 자유단 측에 형성되고, 구조 중심축(13)에 고정된 거치 플레이트(34)에 회전력 수용부(32)와 발전기(33)가 형성되는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.The rotating force transmitting unit 31 of the power generation unit 30 is formed on the free end side, and the rotating force receiving unit 32 and the generator 33 are formed on the mounting plate 34 fixed to the structure central axis 13 . A screw generator having a variable free end, characterized in that.
  6. 제1항에 있어서,According to claim 1,
    상기 구조부(10)는 고정 플레이트(14a)를 중심으로 한 쌍의 평행한 지지 플레이트(14b)가 형성된 케이스(14)에 고정축(12)이 구비되어 양 단이 지지 플레이트(14a)에 고정되는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.The structural part 10 is provided with a fixing shaft 12 in a case 14 in which a pair of parallel support plates 14b are formed around the fixing plate 14a, so that both ends are fixed to the support plate 14a. A screw generator having a variable free end, characterized in that.
  7. 제1항에 있어서,According to claim 1,
    상기 구조부(10)의 고정축(12)에는 양 측에 각도 제한면(12a)이 마련되고, 상기 지지단(11)에는 걸림 리브(11a)가 형성되어 지지단(11)의 회전 각도가 유체의 흐름방향과 수직되는 방향을 중심으로 일정 각도(+θ, -θ)로 제한되는 것을 특징으로 하는 가변형 자유단을 지니는 스크류 발전장치.Angle limiting surfaces 12a are provided on both sides of the fixed shaft 12 of the structure 10, and a locking rib 11a is formed on the support end 11 so that the rotation angle of the support end 11 is fluid. A screw power generator having a variable free end, characterized in that it is limited to a predetermined angle (+θ, -θ) around a direction perpendicular to the flow direction of the
PCT/KR2022/002885 2021-03-26 2022-02-28 Screw power generation apparatus having variable free end WO2022203223A1 (en)

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KR1020210039868A KR102479445B1 (en) 2021-03-26 2021-03-26 Screw Generator with Variable Free End
KR10-2021-0039868 2021-03-26

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Citations (5)

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US6139255A (en) * 1999-05-26 2000-10-31 Vauthier; Philippe Bi-directional hydroturbine assembly for tidal deployment
US20130134715A1 (en) * 2010-08-11 2013-05-30 Jupiter Hydro Inc. System and method for generating electrical power from a flowing current of fluid
JP2014518356A (en) * 2011-07-04 2014-07-28 フルミル アクティーゼルスカブ A device for extracting energy from a flowing liquid
KR20170018303A (en) * 2014-03-21 2017-02-17 플루밀 에이에스 Hydrokinetic energy conversion system and use thereof
KR20210017996A (en) * 2019-08-05 2021-02-17 정민시 Generator using Screw Blades to Improve Efficiency

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NO20030464L (en) * 2003-01-30 2004-08-02 Flucon As Screw turbine device.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139255A (en) * 1999-05-26 2000-10-31 Vauthier; Philippe Bi-directional hydroturbine assembly for tidal deployment
US20130134715A1 (en) * 2010-08-11 2013-05-30 Jupiter Hydro Inc. System and method for generating electrical power from a flowing current of fluid
JP2014518356A (en) * 2011-07-04 2014-07-28 フルミル アクティーゼルスカブ A device for extracting energy from a flowing liquid
KR20170018303A (en) * 2014-03-21 2017-02-17 플루밀 에이에스 Hydrokinetic energy conversion system and use thereof
KR20210017996A (en) * 2019-08-05 2021-02-17 정민시 Generator using Screw Blades to Improve Efficiency

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