WO2008016238A2 - Artificial atmosphere difference induction type wind power generator - Google Patents

Artificial atmosphere difference induction type wind power generator Download PDF

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Publication number
WO2008016238A2
WO2008016238A2 PCT/KR2007/003616 KR2007003616W WO2008016238A2 WO 2008016238 A2 WO2008016238 A2 WO 2008016238A2 KR 2007003616 W KR2007003616 W KR 2007003616W WO 2008016238 A2 WO2008016238 A2 WO 2008016238A2
Authority
WO
WIPO (PCT)
Prior art keywords
air
windmill blade
blade unit
rotary shaft
wind
Prior art date
Application number
PCT/KR2007/003616
Other languages
French (fr)
Other versions
WO2008016238A3 (en
Inventor
Deok-Ho Shin
Original Assignee
Deok-Ho Shin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deok-Ho Shin filed Critical Deok-Ho Shin
Publication of WO2008016238A2 publication Critical patent/WO2008016238A2/en
Publication of WO2008016238A3 publication Critical patent/WO2008016238A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/28—Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/10—Alleged perpetua mobilia
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F05B2240/131—Stators to collect or cause flow towards or away from turbines by means of vertical structures, i.e. chimneys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • F05B2260/24—Heat transfer, e.g. cooling for draft enhancement in chimneys, using solar or other heat sources
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates to a wind power generator, and in particular to an artificial atmosphere difference induction type wind power generator in which an artificial atmosphere difference is formed at upper and lower sides using a Venturi tube, and a uniform and large power is generated using the flow of liquid based on an atmosphere difference, and a large size and heavy windmill wing part generates a strong rotational force with a less wind speed energy.
  • a hydroelectric power generation method which uses an elevation difference
  • a thermal power generation method which generates by burning fuels
  • a nuclear power generation method which uses nuclear fission
  • a wind power generation method which uses wind.
  • One of the above methods may be selected and used based on season and geographical conditions.
  • the hydroelectric power generation method is a typical conventional power generation method which generates power using an elevation difference by constructing a dam at a river. Since it uses nature, a pollution problem such as air pollution does not occur. A lot of power can be generated. A water resource can be efficiently managed. However, the above method needs a lot of area that is submerged under water, thus destroying nature environments. A lot of residence area should be moved to another area. In the case of the thermal power generation method, coal or heavy oil is burned, thus heating water. As the water is heated, a lot of high temperature and pressure vapor is generated and used to drive a vapor turbine, thus generating an electric power.
  • a power generator can be installed at any place without limits in selecting the place, and a large capacity of power can be generated.
  • fuels are burned, air may be polluted, and a nature resource such as coal may be exhausted.
  • a nature resource such as coal may be exhausted.
  • the nuclear power generation method water is boiled, thus generating vapor that is needed to drive a turbine.
  • the nuclear power generation method is similar with the thermal power generation method.
  • the thermal power generation method uses a combustion reaction in a boiler, whereas the nuclear power generation method uses nuclear fission in a nuclear furnace so as to boil water.
  • the nuclear power generation method needs a high cost when the plant is built. Since the cost of a nuclear fuel is relatively low, it has a long time operation lifespan, so that the cost needed for power generation is lowest.
  • the wind power generation is subject to generating power using wind.
  • the installation cost is low, and it can be used at home or in a local area with its individual power generation function. It can be easily installed in a place such as sea or mountains where wind is strong.
  • the wind power generation method is known as a clean energy generation.
  • a main body which is installed vertically from the ground and has a fluid(air) path for flowing air therein as upper and lower sides communicate with each other; a windmill blade unit in which a plurality of blades are supported by a rotary shaft at an upper side of the main body, each blade being rotated by a wind force; a blowing force induction unit which is provide in a fluid path of the main body and induces the flow of fluid with an atmosphere difference between the upper and lower sides of the fluid path for thereby increasing the wind force of the windmill blade unit; and a generation unit which has a driving fan in the fluid path for a rotation depending on a change of flow of the fluid by means of the blowing force induction unit and converts the rotational force of the driving fan into an electric energy and stores in a battery.
  • the blowing force induction unit comprises at least Venturi tubes in the flow path; a blowing fan which is provided at an outlet formed at an upper side of the Venturi tube and blows the fluid toward the blades of the windmill blade unit and generates a negative force at the outlet of the Venturi tube; and a blowing guide member which is provided at an upper side of the main body for inducing the air from the blowing fan to the blades of the windmill blade unit.
  • the blowing force induction unit further comprises a fluid control unit for controlling the flow of fluid of the Venturi tube.
  • the fluid control unit comprises a fluid tube which communicates with the upper and lower sides of the same vertically in the interior of the Venturi tube for changing the inner volume of the Venturi tube; and a cover which is hinged at an upper outlet of the fluid tube for being operated based on the change of pressure of air which passes through the fluid tube.
  • the blowing force induction unit of the prior art further comprises an over pressure prevention unit for preventing an over pressure of the fluid which passes through the interior of the Venturi tube.
  • the over pressure prevention unit comprises a bypass tube which communicates the inlet and outlet of the Venturi tube; and a control valve which is installed in the interior of the bypass tube and closes the interior of the bypass tube when the inner pressure of the fluid is lower than the set pressure.
  • a weight which is hinged at each outer end of the blade of the windmill blade unit and rotates based on the up and down of the wind force, with a lower side of the weight being larger than the upper side.
  • the above prior art can be used any time any place with less wind.
  • the cost for installation is less, and an environment friendly energy can be obtained.
  • the windmill blade size is disadvantageously large and heavy. So, a larger force is needed for rotating the windmill blade unit, so that it is impossible to increase the power generation efficiency.
  • an object of the present invention to provide an artificial atmosphere difference induction type wind power generator which is able to generate a good quality of power and much power by driving a turbine with an artificially generated wind in such a manner that an artificial pressure difference is made between the upper and lower sides of the flow path via the flow path by using wind force for thereby inducing the flow of air.
  • the large size and heavy windmill blade unit can easily rotate with even less wind speed energy, so that an artificial pressure difference is induced for thereby generating large power.
  • an artificial atmosphere difference induction type wind power generator which comprises a main body which is vertically installed on the ground and has a fluid path for guiding an external air from a lower side to an upper side, with the upper and lower sides communicating with each other; a windmill blade unit which is installed at an upper side of the main body and has a plurality of radially disposed blades and rotates by means of wind; a rotary shaft which rotatably supports the windmill blade unit and is vertically installed and rotates along with the windmill blade unit; at least one fan blower which are provided on an upper side of the main body at a lower side of the windmill blade unit and rotate along with the rotation of the rotary shaft and suck the air from the lower side of the main body and spray the air toward the blades of the windmill blade unit; a Venturi tube which allows a fluid passage cross section area to decrease for thereby increasing the flow speed in the course that the air moves up into the fan blower via the main body with one end of the Venturi tube being
  • a heavy windmill blade unit is floated in the air with the help of a repulsive force between the magnets. So, the windmill blade unit can easily rotate with less energy. It is possible to get a large rotational force with a weak wind force energy.
  • the fan blower is rotated at a high speed, and the air is sucked from the main body and is blown toward the blades, so that the windmill blade unit rotates with natural wind as well as artificially generated wind.
  • a large pressure difference is artificially formed between the upper and lower sides of the main body.
  • An external air is inputted from the lower side with the help pf the pressure difference, so that the air is moved up.
  • the air moves up, it passes through the Venturi tube, and the flow speed of the air increases owing to the narrow cross section of the Venturi tube.
  • the turbine rotates with the faster fluid when it passes via the turbine housing. So, a desired electric power can be generated in the power generator.
  • the fluid is strongly sprayed toward the blades by means of the suction and discharge of the fan blower and is used as a driving force source of the windmill blade unit.
  • a plurality of guide plates are installed on the frame structure for guiding the air discharged at a high speed from the fan blower toward the ends of the blades without dispersing the air.
  • Each fan blower receives a driving force from the rotary shaft via an acceleration driving force transfer unit using a gear or a belt.
  • a starter driving motor is provided for driving a main driving gear of the acceleration driving force transfer unit fixed at the rotary shaft.
  • a driving motor is installed for driving a main driving gear of the acceleration driving force transfer unit fixed at the rotary shaft, and the driving motor is controlled and driven for increasing the rotation speed when the rotation speed of the windmill blade unit is below a reference value.
  • a flywheel is installed at a turbine rotary shaft of the power generation unit.
  • the frame structure is supported by means of the main body with a vacuum tank chamber being disposed, and the Venturi tube communicated with the fan blower via the vacuum tank chamber.
  • a compression air tank of which one end is connected with the other end of the air suction path connected via its one end with the vacuum tank chamber; a vacuum pump which is connected with the compression air tank and sucks the air of the vacuum tank chamber and compresses the compression air tank to a high pressure and stores the same; a compression air spray path of which one end is connected with the compression air tank and the other open end sprays compression air toward the blades for thereby facilitating the rotations of the same; a solenoid valve which opens and closes the air suction path and the compression air spray path; and a rotation speed detection sensor which detects the rotation speed of the windmill blade unit or the fan blower and opens only the solenoid valve of the air suction path when a detected value exceeds a certain set value and outputs a control signal for driving the vacuum pump and opens only the solenoid valve of the compression air spray path when the rotation speed is below a set value in accordance with a control signal outputted by the rotation speed detection sensor, respectively.
  • At least one magnetic brake unit consisting of a cylinder, a piston and a brake magnet disposed at a front end of the piston is provided at an upper circular plate of the frame structure, and the magnetic brake unit allows the brake magnet to move up when a rotation speed detected by the rotation speed detection sensor exceeds a certain set value and sucks the windmill blade unit with a magnetic force for thereby decreasing the rotation speed.
  • a vacuum pump is installed at an upper circular plate of the vacuum tank chamber for pumping out the air of the vacuum tank chamber by connecting to the vacuum tank chamber via the path, and the air spray path is connected with the vacuum pump, so that the vacuum pump is driven when the windmill blade unit or the fan blower rotates at a certain speed below a set value for thereby pumping out the air of the vacuum tank chamber, whereby the air is sprayed toward the blades via the air spray path.
  • a heavy windmill blade unit is floated in the air using a repulsive force of the permanent magnets for thereby removing a thrust. So, it is possible to easily generate a desired rotational force with less wind energy for thereby increasing efficiency.
  • a pressure difference is induced, which induces a suction force between the upper and lower sides of the apparatus with the help of the fan blower.
  • the induced air is sprayed toward the blades for thereby obtaining a rotational force.
  • the electric power is generated using the energy of the air which moves up based on the pressure difference. So, it is possible to largely increase the power generation efficiency as compared to the conventional method which generates power using nature wind.
  • Figure 1 is a view illustrating an artificial atmosphere difference induction type wind power generator according to the present invention.
  • Figure 2 is a plane view illustrating a driving force transfer structure of a fan blower of an artificial atmosphere difference induction type wind power generator
  • Figure 3 is a plane view illustrating a generation unit of an artificial atmosphere difference induction type wind power generator according to the present invention
  • Figure 4 is a cross sectional view illustrating a fan blower of an artificial atmosphere difference induction type wind power generator according to the present invention
  • Figure 5 is a plane cross sectional view illustrating an upper side of a rotary shaft of an artificial atmosphere difference induction type wind power generator according to the present invention.
  • FIG. 6 is a block diagram of a control unit according to the present invention.
  • an artificial atmosphere difference induction type wind power generator which comprises a main body which is vertically installed on the ground and has a fluid path for guiding an external air from a lower side to an upper side, with the upper and lower sides communicating with each other; a windmill blade unit which is installed at an upper side of the main body and has a plurality of radially disposed blades and rotates by means of wind; a rotary shaft which rotatably supports the windmill blade unit and is vertically installed and rotates along with the windmill blade unit; at least one fan blower which are provided on an upper side of the main body at a lower side of the windmill blade unit and rotate along with the rotation of the rotary shaft and suck the air from the lower side of the main body and spray the air toward the blades of the windmill blade unit; a Venturi tube which allows a fluid passage cross section area to decrease for thereby increasing the flow speed in the course that the air moves up into the fan blower via the main body with one end of the Venturi tube being connected at the fan blower
  • Figure 1 is a view illustrating an artificial atmosphere difference induction type wind power generator according to the present invention
  • Figure 2 is a plane view illustrating a driving force transfer structure of a fan blower of an artificial atmosphere difference induction type wind power generator
  • Figure 3 is a plane view illustrating a generation unit of an artificial atmosphere difference induction type wind power generator according to the present invention
  • Figure 4 is a cross sectional view illustrating a fan blower of an artificial atmosphere difference induction type wind power generator according to the present invention
  • Figure 5 is a plane cross sectional view illustrating an upper side of a rotary shaft of an artificial atmosphere difference induction type wind power generator according to the present invention
  • Figure 6 is a block diagram of a control unit according to the present invention.
  • the artificial atmosphere difference induction type wind power generator comprises a large pipe-shaped hollow main body 1 which communicates its open upper and lower sides and is vertically installed from the ground and has a fluid path so that air flows from a lower side to an upper side; a windmill blade unit 3 which is engaged at an upper side of the main body 1 and is supported by the same and has a plurality of radially disposed blades 3 which rotate by means of the force of wind; a rotary shaft 4 which rotatably supports the windmill blade unit 3 and is vertically installed and rotates along with the windmill blade unit 3; a frame structure 5 which rotatably supports the rotary shaft 4 and is installed in the upper side of the main body 1 for supporting a thrust by means of the weight of the windmill blade unit 3, a vacuum tank chamber 6 which supports the frame structure 5 with respect to the main body 1 ; a fan blower 9 which is installed on an upper circular plate 7 of the vacuum tank chamber 6 and receives a rotational force of the rotary shaft 4 and rotates
  • the windmill blade unit 3 is provided with a plurality of blades 2 radially disposed between upper and lower dish type members 13 and 14 which are fixed with bolts 15.
  • the windmill blade unit 3 rotates along with the rotary shaft 4 at the upper side of the rotary shaft 4 and is engaged with an upper member 5 a of the frame structure 5 and the rotary shaft 4 via a key 16 or a spline, with the frame structure 5 supporting the rotary shaft 4. Since a key groove 17 is longitudinally formed in an axial direction, the rotary shaft 4 slides along the key groove 17 in an axial direction.
  • a lower permanent magnet 18 having a strong magnetic force is disposed at the upper member 5 a of the frame structure 5 while covering the outer sides of the rotary shaft 4.
  • An upper permanent magnet 20 having a reverse polarity being repulse with respect to the lower permanent magnet 18 is disposed at the lower surface 19 of the windmill blade unit 3.
  • the windmill blade unit 3 of the upper side is pushed up by means of the repulsive force between the upper and lower permanent magnets 20 and 18.
  • the windmill blade unit 3 magnetically floats in the air, so that no thrust is present in a vertical direction.
  • At least one fan blower 9 is disposed on the upper circular plate 7 of the vacuum tank chamber 6 and operates along with the rotation of the rotary shaft 4.
  • the fan blower 9 rotates by receiving a driving force from the rotary shaft 4 with an acceleration driving force transfer unit 21 being disposed.
  • the acceleration driving force transfer unit 21 comprises a larger diameter main driving gear 22 which is fixed at the rotary shaft 4, a plurality of small diameter driven gears 23 which are engaged with the main driving gear 22, a larger diameter pulley 25 which is fixed at the driven gear 23 and a coaxial shaft 24, a smaller diameter pulley 28 which is fixed at the driving fan 26 and the rotary shaft 27 of each fan blower 9, and a V belt 29 which is connected between the pulleys 25 and 28.
  • the resolution of the rotary shaft 4 increases by means of the acceleration driving force transfer unit 21 and is transferred to each fan blower rotary shaft 27, so that the fan blowers 26 rotate at high speed.
  • the lower side of the fan blower housing 30 of the fan blower unit 9 is connected with the vacuum tank chamber 6 via the inlet path 31.
  • the inner upper side of the fan blower housing 30 is connected with one end of an air discharge spray path 8, with the other end of the same being open and installed near the blade 2 so that a rotational force is generated as wind collides with the twisted portions of the ends of the blades 2.
  • the fan blower 26 is formed like the blades of an electric fan. When it rotates in a normal direction, the air of the vacuum tank chamber 6 is sucked, and the air is blown via the air discharge spray path 8 toward the blades 2, so that it operates as a rotation driving force source of the windmill blade unit 3.
  • a starter driving motor 32 is installed at a frame structure 5 for driving the main driving gear 22.
  • the start driving motor 32 is driven like when a vehicle engines starts.
  • a pinion gear 34 fixed at the motor shaft 33 vertically moves and connects with the main driving gear 22 and rotates.
  • the rotary shaft 4 rotates along with the main driving gear 22.
  • the windmill blade unit 3 starts rotating.
  • the start driving motor 32 may be designed to operate together.
  • the motor 35 keeping the connection with the main driving gear 22 all the time and the pinion 36 are provided.
  • Batteries 37a and 37b are provided at the upper circular plate 7 for supplying power needed for driving the motors 32 and 35.
  • the vacuum pump 39 is installed on the upper circular plate 7 and is connected with the vacuum tank chamber 6 via the path 38.
  • the air of the vacuum tank chamber 6 is pumped by means of the vacuum pump 39 and is sprayed toward the blades 2 via the air discharge spray path 8.
  • a battery 40 is installed on the upper circular plate 7 for driving the vacuum pump 39.
  • the power generation unit 12 installed below the vacuum tank chamber 6 comprises an upper circular plate 40 bolt-engaged with the flange 10, a lower circular plate 41 which is bolt-engaged with the flange 11 of the main body 1, a plurality of posts 42 for connecting the upper and lower circular plates 41 and 40, a pair of partitions 44 which are installed opposite to each other with respect to a space 43, a turbine rotary shaft 46 which is rotatable along with a bearing 45 while horizontally passing through the partition 44, a turbine 47 which is fixed at one end of the turbine rotary shaft 46, a turbine housing 48 which accommodates the turbine 47, a flywheel 49 which is fixed on the turbine rotary shaft 46 in the space 43 between the partitions 44, an acceleration gear unit 50 for accelerating the revolution of the turbine rotary shaft 46, and a power generator 51.
  • the turbine housing 48 which accommodates the turbine 47, is installed at an intermediate portion of the Venturi tube 52a which has a less diameter(cross section area) as compared to the main body 1.
  • the flowing speed of the air when it passes through the Venturi tube 52a increases largely, so that the turbine 47 is driven by means of the increased flow speed of the air for thereby generating power.
  • the Venturi tube 52a is determined based on the number of turbines 47. Since the vacuum tank chamber 6 is provided, it is not needed to match the number of the Venturi tube 52a with the number of the fan blowers 9.
  • a compression air tank 52 and a vacuum pump 53 are installed on the ground or under the ground where are near the main body 1.
  • An air suction path 54 is connected with the compression air tank 52, and the other end of the air suction path 54 communicates with the vacuum tank chamber 6.
  • the compression air spry path 55 is connected with the compression air tank 52 for spraying the stored compressed air toward the blades 2.
  • One end exposed into the air is closely installed in a direction of the blades 2.
  • Solenoid valves 56 and 57 are installed at the paths 54 and 55 for opening and closing the paths 54 and 55.
  • a plurality of magnetic brakes 58 are installed outside the frame structure 5.
  • the magnetic brake 58 consists of a cylinder 59 (in case of electric operation system, it is referred to solenoid) which operates by hydraulic or air pressure, a piston 60, and a brake magnet 61 which is attached on an upper side of the piston 60 and has a strong magnetic force.
  • a cylinder 59 in case of electric operation system, it is referred to solenoid
  • the brake magnet 61 moves up and provides the magnetic blade 2 with an absorbing force, thus decreasing a rotation speed.
  • a heat storing boiler 62 is installed along with the compression air tank 52.
  • the heat storing boiler 62 drives the electric heater 63 and heats water using a surplus power when there is a surplus power after using the power generated by the power generator 12, so that the heater water may be used for warming a certain facility or may be used for supplying heated water.
  • FIG. 6 is a block diagram of a control unit according to the present invention.
  • the control unit 64 controls the operations of a rotation speed detection sensor 65 which detects the rotation speed of the windmill blade unit 3, a starter driving motor 32, a motor 35, vacuum pumps 39 and 53, a heat storing boiler heater 63, solenoid valves 56 and 57, and a magnetic brake 58.
  • the windmill blade unit 3 is very heavy, but it is floated in the air by means of a repulsive force of the upper and lower permanent magnets 18 and 20. There is not any thrust which is applied in a vertical direction. So, it rotates with a very small wind speed. In case that there is not any wind enough to rotate the windmill blade unit 3 owing to a stop inertia force, the starter driving motor 32 is driven. The pinion gear 34 moves in a radial direction and is connected with the main driving gear 22 for thereby rotating the rotary shaft 4. So, the windmill blade unit 3 rotates.
  • the starter driving motor 32 stops.
  • the fan blower 26 of the fan blower 9 rotating at a high speed by means of the acceleration driving force transfer unit 21 sucks the air of the vacuum tank chamber 6 and sprays toward the blades 2 via the air discharge spray path 8.
  • the air passes through the turbine housing 48 installed at an intermediate portion of the Venturi tube 52a, and the fast air moves up and rotates the turbine 47 and is inputted into the vacuum pump chamber 6, and then the air is blown toward the blades 2 by means of the fan blower 9 as the air used for generating power is not discarded to the outside like collecting waste heat in a boiler.
  • the turbine 47 rotates, the rotational force is transferred to the power generator 51 via the turbine rotary shaft 46 and the acceleration gear unit 50, thus converting a kinetic energy into an electrical energy.
  • the power generated by the power generation unit 12 may be directly used at home or in a factory or may be supplied based on a contract with a power service company.
  • the power generated by the power generation unit 12 remaining after the use may be stored in the batteries 36 37 or may be used for driving the electric heater 63 of the heat storing boiler 62 for thereby obtaining heated water.
  • the heated water may be used for warming a certain facility or for bathing.
  • the batteries 36 and 37 may be used as a driving force source of the optimum rotation control.
  • the apparatus When wind is too strong or the windmill blade unit 3 rotates at a high speed, the apparatus may be over heated or a fixed voltage cannot be generated. So, a deviation of fixed voltage is too high, the quality becomes unstable.
  • the rotation speed detection sensor 65 senses a rotation speed of the blades 2or the fan blower. When it exceeds a certain set value, the vacuum pump 52 is driven, and the air of the vacuum pump chamber 60 is pumped out and is stored in the compression air tank 52.
  • the magnetic brake device 58 is operated based on a rotation speed signal of the rotation speed detection sensor 65 or an information from a pressure meter 68 of the fan blower 9, so that the piston 60 moves up, and the brake magnet 61 is controlled to be near the blades 2 for thereby applying a brake, whereby the rotation speed of the windmill blade unit 3 is decreased.
  • the solenoid valve 57 is opened, and the compression air stored in the compression air tank 52 is sprayed and supplied to the blades 2 via the compression air spray path 55 for thereby increasing the rotation speed.
  • the vacuum pump 39 installed on the upper circular plate 7 is driven, and the air is sprayed toward the blades 2 via the path 69 for thereby increasing rotation speed.
  • the motor 35 may be driven using the battery 37b using the stored electricity for thereby increasing the rotation speed. It may be controlled in various different methods.
  • the power generation unit 12 has a flywheel 49 for thereby keeping a constant speed with an inertia force, so that a fixed stable voltage can be obtained.
  • the air sprayed via the paths 8, 55 and 67 has a certain orientation by means of the guide plate 70 installed on the frame structure 5, so that the air is not dispersed, namely, is intensively guided toward the blades 2.
  • a surplus air is applied toward the blades 2 of the near apparatus for thereby largely enhancing efficiency with the help of the above orientation.
  • reference numeral 71 represents a support housing of the shaft 24.
  • a heavy windmill blade unit is floated in the air using a repulsive force of the permanent magnets for thereby removing a thrust. So, it is possible to easily generate a desired large rotational force with less wind energy for thereby increasing efficiency of a wind power generator.
  • a pressure difference is induced, which induces a suction force between the upper and lower sides of the apparatus with the help of the fan blower using natural wind.
  • the induced air is sprayed toward the blades for thereby obtaining a rotational force like the boiler collects waste heat.
  • the electric power is generated using the flow energy of the air which moves up along the flow path based on the pressure difference. So, it is possible to largely increase the power generation efficiency as compared to the conventional method which generates power using nature wind.

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Abstract

An artificial atmosphere difference induction type wind power generator is disclosed, which is able to generate a good quality of power and much power by driving a turbine (47) with an artificially generated wind in such a manner that an artificial pressure difference is made between the upper and lower sides irrespective of wind force and wind direction for thereby inducing the flow of air. The large size and heavy windmill blade-unit (3) can easily rotate with even less wind speed energy, so that an artificial pressure difference is induced for thereby generating large power. Blade-unit (3) is driven by natural wind as well as artificially created wind. Blowers (9) mounted on frame-like structure (5) on top of Venturi-tube (52a,6) create an artificial vertical air-flow, which drives blade-unit (3) additionally to natural wind. Moreover, artificial air-flow drives turbine (47) and consequently generator (51 ) mounted in the narrow section of Venturi-tube (52a, 6). Vertical shaft (4) of blade-unit (3), on the other hand, is supposed to drive blowers (9), which is supposed to create an even stronger artificial wind acting on blade-unit. For this purpose shaft (4) and blowers (9) are connected by gear (21 ). During the start-up phase of the device shaft (4) is driven by motor (32) acting on driving gear (22) of shaft (4).

Description

Description
ARTIFICIAL ATMOSPHERE DIFFERENCE INDUCTION TYPE
WIND POWER GENERATOR
Technical Field
[1] The present invention relates to a wind power generator, and in particular to an artificial atmosphere difference induction type wind power generator in which an artificial atmosphere difference is formed at upper and lower sides using a Venturi tube, and a uniform and large power is generated using the flow of liquid based on an atmosphere difference, and a large size and heavy windmill wing part generates a strong rotational force with a less wind speed energy.
[2]
Background Art
[3] Generally, as a method for generating power, there are a hydroelectric power generation method which uses an elevation difference, a thermal power generation method which generates by burning fuels, a nuclear power generation method which uses nuclear fission, and a wind power generation method which uses wind. One of the above methods may be selected and used based on season and geographical conditions.
[4] Among the above methods, the hydroelectric power generation method is a typical conventional power generation method which generates power using an elevation difference by constructing a dam at a river. Since it uses nature, a pollution problem such as air pollution does not occur. A lot of power can be generated. A water resource can be efficiently managed. However, the above method needs a lot of area that is submerged under water, thus destroying nature environments. A lot of residence area should be moved to another area. In the case of the thermal power generation method, coal or heavy oil is burned, thus heating water. As the water is heated, a lot of high temperature and pressure vapor is generated and used to drive a vapor turbine, thus generating an electric power. In this method, a power generator can be installed at any place without limits in selecting the place, and a large capacity of power can be generated. However, as fuels are burned, air may be polluted, and a nature resource such as coal may be exhausted. According to the nuclear power generation method, water is boiled, thus generating vapor that is needed to drive a turbine. In this matter, the nuclear power generation method is similar with the thermal power generation method. The thermal power generation method uses a combustion reaction in a boiler, whereas the nuclear power generation method uses nuclear fission in a nuclear furnace so as to boil water. The nuclear power generation method needs a high cost when the plant is built. Since the cost of a nuclear fuel is relatively low, it has a long time operation lifespan, so that the cost needed for power generation is lowest. With a small amount of fuel, it is possible to generate enough power. As compared to the thermal power generation method that needs to burn fossil fuel, since carbon dioxide, sulfurous acid gas, nitric oxide, etc. are not produced, it is possible to protect an ecosystem from being polluted by means of warming effects or acid rain. So, it is very effective in view of earth environment protection. Since it is related to a high tech intensive power generation method that needs an advanced technology, a related science and industry may be promoted. However, it produces radioactive ray and radioactive ray-polluted wastes that should be treated and disposed in safe. So, the cost is additionally needed for an installation of a necessary safety facility. The toxicity is very harmful, and a long life nuclear waste should be managed in safe for a long time period.
[5] Since the hydroelectric power generation, thermal power generation and nuclear power generation are subject to a large amount of power generation methods, an initial construction cost is too high. The wind power generation is subject to generating power using wind. The installation cost is low, and it can be used at home or in a local area with its individual power generation function. It can be easily installed in a place such as sea or mountains where wind is strong. The wind power generation method is known as a clean energy generation.
[6] According to the wind power generation methods, in case that a generator is not controlled so that it is rotated at a uniform speed, a stable and fixed voltage cannot be obtained. In recent years, a research has been conducted for obtaining a more stable fixed voltage via a control for changing an inclination of a windmill blade unit depending on the speed of wind. When wind is not present or a blowing direction or a blowing speed of wind is not constant depending on the seasons, since it is impossible to generate power, there are many problems for actually using the same despite its advantages of an environment friendly energy.
[7] Since a propeller type wind power generator is largely subject to the force of wind, it has a problem with a surrounding environment such as an installation at a place of no wind.
[8] When an over load is applied to a windmill blade unit depending on a force of wind or an upward force is applied thereto, it is impossible to widen the width of a windmill blade unit which is designed to take as much as wind force and a windmill blade unit may be lifted.
[9] The applicant of the present invention filed a Korean patent application number
2004-0092344 in which the force of natural wind is used, but a turbine is driven with an artificially generated wind by inducing the flow of air via the flow path by using the wind as a driving force source which forms an artificial atmosphere difference between the upper and lower sides of the apparatus, not directly converting natural wind into an electric force, whereby it is possible to generate more electric power as compared to a conventional generation method especially in views of a power quality as well as an installation cost and a maintenance cost.
[10] According to the above patent application, there are provided a main body which is installed vertically from the ground and has a fluid(air) path for flowing air therein as upper and lower sides communicate with each other; a windmill blade unit in which a plurality of blades are supported by a rotary shaft at an upper side of the main body, each blade being rotated by a wind force; a blowing force induction unit which is provide in a fluid path of the main body and induces the flow of fluid with an atmosphere difference between the upper and lower sides of the fluid path for thereby increasing the wind force of the windmill blade unit; and a generation unit which has a driving fan in the fluid path for a rotation depending on a change of flow of the fluid by means of the blowing force induction unit and converts the rotational force of the driving fan into an electric energy and stores in a battery.
[11] The blowing force induction unit comprises at least Venturi tubes in the flow path; a blowing fan which is provided at an outlet formed at an upper side of the Venturi tube and blows the fluid toward the blades of the windmill blade unit and generates a negative force at the outlet of the Venturi tube; and a blowing guide member which is provided at an upper side of the main body for inducing the air from the blowing fan to the blades of the windmill blade unit.
[12] The blowing force induction unit further comprises a fluid control unit for controlling the flow of fluid of the Venturi tube.
[13] The fluid control unit comprises a fluid tube which communicates with the upper and lower sides of the same vertically in the interior of the Venturi tube for changing the inner volume of the Venturi tube; and a cover which is hinged at an upper outlet of the fluid tube for being operated based on the change of pressure of air which passes through the fluid tube.
[14] The blowing force induction unit of the prior art further comprises an over pressure prevention unit for preventing an over pressure of the fluid which passes through the interior of the Venturi tube.
[15] The over pressure prevention unit comprises a bypass tube which communicates the inlet and outlet of the Venturi tube; and a control valve which is installed in the interior of the bypass tube and closes the interior of the bypass tube when the inner pressure of the fluid is lower than the set pressure.
[16] There is further provided a weight which is hinged at each outer end of the blade of the windmill blade unit and rotates based on the up and down of the wind force, with a lower side of the weight being larger than the upper side.
[17] The above prior art filed by the applicant of the present invention can operates largely depending on the speed of the natural wind. When the windmill blade unit rotates by natural wind, the driving fan rotates by means of the rotational force thus sucking and discharging the air. So, a pressure difference occurs between the upper and lower sides of the flow path in the course of the above operation. The air flow is guided to flow via the Venturi tube and is changed to a high speed air flow thus driving the generation turbine and generating electric energy. The generation turbine is driven by the force, and the air is discharged to the windmill blade unit and is added to the driving force and is used for driving the windmill blade unit for thereby generating a uniform energy by adjusting the fluid pressure of the Venturi tube. So, the above prior art can be used any time any place with less wind. The cost for installation is less, and an environment friendly energy can be obtained. However, the windmill blade size is disadvantageously large and heavy. So, a larger force is needed for rotating the windmill blade unit, so that it is impossible to increase the power generation efficiency.
[18]
Disclosure of Invention Technical Problem
[19] Accordingly, it is an object of the present invention to provide an artificial atmosphere difference induction type wind power generator which is able to generate a good quality of power and much power by driving a turbine with an artificially generated wind in such a manner that an artificial pressure difference is made between the upper and lower sides of the flow path via the flow path by using wind force for thereby inducing the flow of air. The large size and heavy windmill blade unit can easily rotate with even less wind speed energy, so that an artificial pressure difference is induced for thereby generating large power.
[20] It is another object of the present invention to provide an artificial atmosphere difference induction type wind power generator which is able to increase a power generation efficiency by intensively spraying the wind toward the windmill blade unit after the wind was used for the generation of power with the flow of the same being induced by the atmosphere difference.
[21] It is further another object of the present invention to provide an artificial atmosphere difference induction type wind power generator which is able to generate a good uniform quality power irrespective of a change of wind speed by controlling the driving operation of the turbine with an optimum method.
[22]
Technical Solution
[23] To achieve the above objects, in an artificial atmosphere difference induction type wind power generator which comprises a main body which is vertically installed on the ground and has a fluid path for guiding an external air from a lower side to an upper side, with the upper and lower sides communicating with each other; a windmill blade unit which is installed at an upper side of the main body and has a plurality of radially disposed blades and rotates by means of wind; a rotary shaft which rotatably supports the windmill blade unit and is vertically installed and rotates along with the windmill blade unit; at least one fan blower which are provided on an upper side of the main body at a lower side of the windmill blade unit and rotate along with the rotation of the rotary shaft and suck the air from the lower side of the main body and spray the air toward the blades of the windmill blade unit; a Venturi tube which allows a fluid passage cross section area to decrease for thereby increasing the flow speed in the course that the air moves up into the fan blower via the main body with one end of the Venturi tube being connected at the fan blower directly or indirectly using a certain element and communicating with the fan blower, with the other end being connected and communicating with the main body; and a power generator which includes a turbine housing provided at an intermediate portion of the rotary shaft, a turbine which is rotatably accommodated in the turbine housing and rotates by the flowing speed of the air which rises via the Venturi tube, and a power generator which generates electric power using the rotational force of the turbine, there is provided an artificial atmosphere difference induction type wind power generator which comprises a frame structure which is installed at an upper side of the main body for rotatably supporting the rotary shaft; a lower permanent magnet which is installed on an upper side of the frame structure, while covering the rotary shaft; and an upper permanent magnet which is installed at a lower surface of the windmill blade unit being opposite to the upper side of the frame structure and has a certain polarity to have a repulsive force with respect to the lower permanent magnet, wherein the windmill blade unit is engaged in a key engaging structure in which an axial direction movement is possible with respect to the rotary shaft vertically disposed, so that the windmill blade unit rotates while keeping a floated state in the air above the rotary shaft by means of a repulsive force generated between the upper and lower permanent magnets.
[24] With the above construction, a heavy windmill blade unit is floated in the air with the help of a repulsive force between the magnets. So, the windmill blade unit can easily rotate with less energy. It is possible to get a large rotational force with a weak wind force energy. The fan blower is rotated at a high speed, and the air is sucked from the main body and is blown toward the blades, so that the windmill blade unit rotates with natural wind as well as artificially generated wind. A large pressure difference is artificially formed between the upper and lower sides of the main body. An external air is inputted from the lower side with the help pf the pressure difference, so that the air is moved up. In the course that the air moves up, it passes through the Venturi tube, and the flow speed of the air increases owing to the narrow cross section of the Venturi tube. The turbine rotates with the faster fluid when it passes via the turbine housing. So, a desired electric power can be generated in the power generator. The fluid is strongly sprayed toward the blades by means of the suction and discharge of the fan blower and is used as a driving force source of the windmill blade unit.
[25] As another feature of the present invention, a plurality of guide plates are installed on the frame structure for guiding the air discharged at a high speed from the fan blower toward the ends of the blades without dispersing the air.
[26] Each fan blower receives a driving force from the rotary shaft via an acceleration driving force transfer unit using a gear or a belt.
[27] A starter driving motor is provided for driving a main driving gear of the acceleration driving force transfer unit fixed at the rotary shaft.
[28] A driving motor is installed for driving a main driving gear of the acceleration driving force transfer unit fixed at the rotary shaft, and the driving motor is controlled and driven for increasing the rotation speed when the rotation speed of the windmill blade unit is below a reference value.
[29] A flywheel is installed at a turbine rotary shaft of the power generation unit.
[30] The frame structure is supported by means of the main body with a vacuum tank chamber being disposed, and the Venturi tube communicated with the fan blower via the vacuum tank chamber.
[31] There are further provided a compression air tank of which one end is connected with the other end of the air suction path connected via its one end with the vacuum tank chamber; a vacuum pump which is connected with the compression air tank and sucks the air of the vacuum tank chamber and compresses the compression air tank to a high pressure and stores the same; a compression air spray path of which one end is connected with the compression air tank and the other open end sprays compression air toward the blades for thereby facilitating the rotations of the same; a solenoid valve which opens and closes the air suction path and the compression air spray path; and a rotation speed detection sensor which detects the rotation speed of the windmill blade unit or the fan blower and opens only the solenoid valve of the air suction path when a detected value exceeds a certain set value and outputs a control signal for driving the vacuum pump and opens only the solenoid valve of the compression air spray path when the rotation speed is below a set value in accordance with a control signal outputted by the rotation speed detection sensor, respectively.
[32] There is further provided a heat storing boiler which heats water and stores the same for the use of warming a certain facility with an electric heater operated using a surplus electric power of the power generation unit. [33] At least one magnetic brake unit consisting of a cylinder, a piston and a brake magnet disposed at a front end of the piston is provided at an upper circular plate of the frame structure, and the magnetic brake unit allows the brake magnet to move up when a rotation speed detected by the rotation speed detection sensor exceeds a certain set value and sucks the windmill blade unit with a magnetic force for thereby decreasing the rotation speed.
[34] A vacuum pump is installed at an upper circular plate of the vacuum tank chamber for pumping out the air of the vacuum tank chamber by connecting to the vacuum tank chamber via the path, and the air spray path is connected with the vacuum pump, so that the vacuum pump is driven when the windmill blade unit or the fan blower rotates at a certain speed below a set value for thereby pumping out the air of the vacuum tank chamber, whereby the air is sprayed toward the blades via the air spray path.
[35]
Advantageous Effects
[36] In the present invention, a heavy windmill blade unit is floated in the air using a repulsive force of the permanent magnets for thereby removing a thrust. So, it is possible to easily generate a desired rotational force with less wind energy for thereby increasing efficiency. A pressure difference is induced, which induces a suction force between the upper and lower sides of the apparatus with the help of the fan blower. The induced air is sprayed toward the blades for thereby obtaining a rotational force. The electric power is generated using the energy of the air which moves up based on the pressure difference. So, it is possible to largely increase the power generation efficiency as compared to the conventional method which generates power using nature wind.
[37]
Brief Description of the Drawings
[38] The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein;
[39] Figure 1 is a view illustrating an artificial atmosphere difference induction type wind power generator according to the present invention;
[40] Figure 2 is a plane view illustrating a driving force transfer structure of a fan blower of an artificial atmosphere difference induction type wind power generator;
[41] Figure 3 is a plane view illustrating a generation unit of an artificial atmosphere difference induction type wind power generator according to the present invention;
[42] Figure 4 is a cross sectional view illustrating a fan blower of an artificial atmosphere difference induction type wind power generator according to the present invention; [43] Figure 5 is a plane cross sectional view illustrating an upper side of a rotary shaft of an artificial atmosphere difference induction type wind power generator according to the present invention; and
[44] Figure 6 is a block diagram of a control unit according to the present invention.
[45]
Best Mode for Carrying Out the Invention
[46] In an artificial atmosphere difference induction type wind power generator which comprises a main body which is vertically installed on the ground and has a fluid path for guiding an external air from a lower side to an upper side, with the upper and lower sides communicating with each other; a windmill blade unit which is installed at an upper side of the main body and has a plurality of radially disposed blades and rotates by means of wind; a rotary shaft which rotatably supports the windmill blade unit and is vertically installed and rotates along with the windmill blade unit; at least one fan blower which are provided on an upper side of the main body at a lower side of the windmill blade unit and rotate along with the rotation of the rotary shaft and suck the air from the lower side of the main body and spray the air toward the blades of the windmill blade unit; a Venturi tube which allows a fluid passage cross section area to decrease for thereby increasing the flow speed in the course that the air moves up into the fan blower via the main body with one end of the Venturi tube being connected at the fan blower directly or indirectly using a certain element and communicating with the fan blower, with the other end being connected and communicating with the main body; and a power generator which includes a turbine housing provided at an intermediate portion of the rotary shaft, a turbine which is rotatably accommodated in the turbine housing and rotates by the flowing speed of the air which rises via the Venturi tube, and a power generator which generates electric power using the rotational force of the turbine, there is provided an artificial atmosphere difference induction type wind power generator which comprises a frame structure which is installed at an upper side of the main body for rotatably supporting the rotary shaft; a lower permanent magnet which is installed on an upper side of the frame structure, while covering the rotary shaft; and an upper permanent magnet which is installed at a lower surface of the windmill blade unit being opposite to the upper side of the frame structure and has a certain polarity to have a repulsive force with respect to the lower permanent magnet, wherein the windmill blade unit is engaged in a key engaging structure in which an axial direction movement is possible with respect to the rotary shaft vertically disposed, so that the windmill blade unit rotates while keeping a floated state in the air above the rotary shaft by means of a repulsive force generated between the upper and lower permanent magnets. [47]
Mode for the Invention
[48] The preferred embodiment of the present invention will be described with reference to the accompanying drawings.
[49] Figure 1 is a view illustrating an artificial atmosphere difference induction type wind power generator according to the present invention, Figure 2 is a plane view illustrating a driving force transfer structure of a fan blower of an artificial atmosphere difference induction type wind power generator, Figure 3 is a plane view illustrating a generation unit of an artificial atmosphere difference induction type wind power generator according to the present invention, Figure 4 is a cross sectional view illustrating a fan blower of an artificial atmosphere difference induction type wind power generator according to the present invention, Figure 5 is a plane cross sectional view illustrating an upper side of a rotary shaft of an artificial atmosphere difference induction type wind power generator according to the present invention, and Figure 6 is a block diagram of a control unit according to the present invention.
[50] The artificial atmosphere difference induction type wind power generator according to the present invention comprises a large pipe-shaped hollow main body 1 which communicates its open upper and lower sides and is vertically installed from the ground and has a fluid path so that air flows from a lower side to an upper side; a windmill blade unit 3 which is engaged at an upper side of the main body 1 and is supported by the same and has a plurality of radially disposed blades 3 which rotate by means of the force of wind; a rotary shaft 4 which rotatably supports the windmill blade unit 3 and is vertically installed and rotates along with the windmill blade unit 3; a frame structure 5 which rotatably supports the rotary shaft 4 and is installed in the upper side of the main body 1 for supporting a thrust by means of the weight of the windmill blade unit 3, a vacuum tank chamber 6 which supports the frame structure 5 with respect to the main body 1 ; a fan blower 9 which is installed on an upper circular plate 7 of the vacuum tank chamber 6 and receives a rotational force of the rotary shaft 4 and rotates and sucks the air of the main body 1 via the vacuum tank chamber 6 and discharges the air to the blades 2 via an air discharge spray path 8 for thereby rotating the windmill blade unit 3, and a power generation unit 12 which is installed between a lower flange of the vacuum tank chamber 6 and an upper flange 11 of the main body 1.
[51] The windmill blade unit 3 is provided with a plurality of blades 2 radially disposed between upper and lower dish type members 13 and 14 which are fixed with bolts 15. The windmill blade unit 3 rotates along with the rotary shaft 4 at the upper side of the rotary shaft 4 and is engaged with an upper member 5 a of the frame structure 5 and the rotary shaft 4 via a key 16 or a spline, with the frame structure 5 supporting the rotary shaft 4. Since a key groove 17 is longitudinally formed in an axial direction, the rotary shaft 4 slides along the key groove 17 in an axial direction.
[52] A lower permanent magnet 18 having a strong magnetic force is disposed at the upper member 5 a of the frame structure 5 while covering the outer sides of the rotary shaft 4. An upper permanent magnet 20 having a reverse polarity being repulse with respect to the lower permanent magnet 18 is disposed at the lower surface 19 of the windmill blade unit 3. The windmill blade unit 3 of the upper side is pushed up by means of the repulsive force between the upper and lower permanent magnets 20 and 18. The windmill blade unit 3 magnetically floats in the air, so that no thrust is present in a vertical direction.
[53] At least one fan blower 9 is disposed on the upper circular plate 7 of the vacuum tank chamber 6 and operates along with the rotation of the rotary shaft 4. The fan blower 9 rotates by receiving a driving force from the rotary shaft 4 with an acceleration driving force transfer unit 21 being disposed. Here, the acceleration driving force transfer unit 21 comprises a larger diameter main driving gear 22 which is fixed at the rotary shaft 4, a plurality of small diameter driven gears 23 which are engaged with the main driving gear 22, a larger diameter pulley 25 which is fixed at the driven gear 23 and a coaxial shaft 24, a smaller diameter pulley 28 which is fixed at the driving fan 26 and the rotary shaft 27 of each fan blower 9, and a V belt 29 which is connected between the pulleys 25 and 28. The resolution of the rotary shaft 4 increases by means of the acceleration driving force transfer unit 21 and is transferred to each fan blower rotary shaft 27, so that the fan blowers 26 rotate at high speed.
[54] The lower side of the fan blower housing 30 of the fan blower unit 9 is connected with the vacuum tank chamber 6 via the inlet path 31. The inner upper side of the fan blower housing 30 is connected with one end of an air discharge spray path 8, with the other end of the same being open and installed near the blade 2 so that a rotational force is generated as wind collides with the twisted portions of the ends of the blades 2.
[55] The fan blower 26 is formed like the blades of an electric fan. When it rotates in a normal direction, the air of the vacuum tank chamber 6 is sucked, and the air is blown via the air discharge spray path 8 toward the blades 2, so that it operates as a rotation driving force source of the windmill blade unit 3.
[56] As shown in Figure 2, a starter driving motor 32 is installed at a frame structure 5 for driving the main driving gear 22. When it is needed to rotate the windmill blade unit 3 from the stop state, the start driving motor 32 is driven like when a vehicle engines starts. A pinion gear 34 fixed at the motor shaft 33 vertically moves and connects with the main driving gear 22 and rotates. The rotary shaft 4 rotates along with the main driving gear 22. The windmill blade unit 3 starts rotating. As a rotational inertia force reach at a certain degree, the start driving motor 32 is disconnected. The start driving motor 32 may be designed to operate together. As shown in Figure 2, the motor 35 keeping the connection with the main driving gear 22 all the time and the pinion 36 are provided. So, when the windmill unit 3 has a certain revolution smaller than a set value, the motor 35 is driven, and the revolution of the rotary shaft 4 is increased. Batteries 37a and 37b are provided at the upper circular plate 7 for supplying power needed for driving the motors 32 and 35.
[57] The vacuum pump 39 is installed on the upper circular plate 7 and is connected with the vacuum tank chamber 6 via the path 38. The air of the vacuum tank chamber 6 is pumped by means of the vacuum pump 39 and is sprayed toward the blades 2 via the air discharge spray path 8. A battery 40 is installed on the upper circular plate 7 for driving the vacuum pump 39.
[58] The power generation unit 12 installed below the vacuum tank chamber 6 comprises an upper circular plate 40 bolt-engaged with the flange 10, a lower circular plate 41 which is bolt-engaged with the flange 11 of the main body 1, a plurality of posts 42 for connecting the upper and lower circular plates 41 and 40, a pair of partitions 44 which are installed opposite to each other with respect to a space 43, a turbine rotary shaft 46 which is rotatable along with a bearing 45 while horizontally passing through the partition 44, a turbine 47 which is fixed at one end of the turbine rotary shaft 46, a turbine housing 48 which accommodates the turbine 47, a flywheel 49 which is fixed on the turbine rotary shaft 46 in the space 43 between the partitions 44, an acceleration gear unit 50 for accelerating the revolution of the turbine rotary shaft 46, and a power generator 51. The turbine housing 48, which accommodates the turbine 47, is installed at an intermediate portion of the Venturi tube 52a which has a less diameter(cross section area) as compared to the main body 1. The flowing speed of the air when it passes through the Venturi tube 52a increases largely, so that the turbine 47 is driven by means of the increased flow speed of the air for thereby generating power.
[59] Here, the Venturi tube 52a is determined based on the number of turbines 47. Since the vacuum tank chamber 6 is provided, it is not needed to match the number of the Venturi tube 52a with the number of the fan blowers 9.
[60] A compression air tank 52 and a vacuum pump 53 are installed on the ground or under the ground where are near the main body 1. An air suction path 54 is connected with the compression air tank 52, and the other end of the air suction path 54 communicates with the vacuum tank chamber 6. As the vacuum pump 53 operates, part of the air of the vacuum tank chamber 6 is compressed and stored in the compression air tank 53. The compression air spry path 55 is connected with the compression air tank 52 for spraying the stored compressed air toward the blades 2. One end exposed into the air is closely installed in a direction of the blades 2. Solenoid valves 56 and 57 are installed at the paths 54 and 55 for opening and closing the paths 54 and 55. [61] A plurality of magnetic brakes 58 are installed outside the frame structure 5. The magnetic brake 58 consists of a cylinder 59 (in case of electric operation system, it is referred to solenoid) which operates by hydraulic or air pressure, a piston 60, and a brake magnet 61 which is attached on an upper side of the piston 60 and has a strong magnetic force. When the windmill blade unit 3 has an over heating problem as it rotates at a high speed, the brake magnet 61 moves up and provides the magnetic blade 2 with an absorbing force, thus decreasing a rotation speed.
[62] A heat storing boiler 62 is installed along with the compression air tank 52. The heat storing boiler 62 drives the electric heater 63 and heats water using a surplus power when there is a surplus power after using the power generated by the power generator 12, so that the heater water may be used for warming a certain facility or may be used for supplying heated water.
[63] Figure 6 is a block diagram of a control unit according to the present invention. The control unit 64 controls the operations of a rotation speed detection sensor 65 which detects the rotation speed of the windmill blade unit 3, a starter driving motor 32, a motor 35, vacuum pumps 39 and 53, a heat storing boiler heater 63, solenoid valves 56 and 57, and a magnetic brake 58.
[64] The operation of the present invention will be described with reference to the accompanying drawings.
[65] When wind blows, it collides with the blades 2, and the windmill blade unit 3 rotates.
Here, the windmill blade unit 3 is very heavy, but it is floated in the air by means of a repulsive force of the upper and lower permanent magnets 18 and 20. There is not any thrust which is applied in a vertical direction. So, it rotates with a very small wind speed. In case that there is not any wind enough to rotate the windmill blade unit 3 owing to a stop inertia force, the starter driving motor 32 is driven. The pinion gear 34 moves in a radial direction and is connected with the main driving gear 22 for thereby rotating the rotary shaft 4. So, the windmill blade unit 3 rotates. When it rotates beyond the stop inertia force, a large centrifugal force operates as an inertia force, so that the windmill blade unit 3 can rotate with a certain rotational force. The starter driving motor 32 stops. The fan blower 26 of the fan blower 9 rotating at a high speed by means of the acceleration driving force transfer unit 21 sucks the air of the vacuum tank chamber 6 and sprays toward the blades 2 via the air discharge spray path 8. The windmill blade unit 3, which received a rotational force by the air discharging along with natural wind, keeps a certain rotation speed.
[66] When the air of the vacuum tank chamber 6 is discharged, a vacuum pressure is formed in the vacuum tank chamber 6, so that a certain pressure difference occurs between the upper and lower sides of the main body 1. An external air is inputted into the main body 1 via a plurality of air holes 66 formed at lower sides and is moved upwards along the air path 67. At this time, the air is gathered at the Venturi tube 52a having a narrow cross section in the course that the air moves up, the flowing speed of the air is sharply increased in the Venturi tube 52a. The air passes through the turbine housing 48 installed at an intermediate portion of the Venturi tube 52a, and the fast air moves up and rotates the turbine 47 and is inputted into the vacuum pump chamber 6, and then the air is blown toward the blades 2 by means of the fan blower 9 as the air used for generating power is not discarded to the outside like collecting waste heat in a boiler. When the turbine 47 rotates, the rotational force is transferred to the power generator 51 via the turbine rotary shaft 46 and the acceleration gear unit 50, thus converting a kinetic energy into an electrical energy. The power generated by the power generation unit 12 may be directly used at home or in a factory or may be supplied based on a contract with a power service company.
[67] The power generated by the power generation unit 12 remaining after the use may be stored in the batteries 36 37 or may be used for driving the electric heater 63 of the heat storing boiler 62 for thereby obtaining heated water. The heated water may be used for warming a certain facility or for bathing. The batteries 36 and 37 may be used as a driving force source of the optimum rotation control.
[68] When wind is too strong or the windmill blade unit 3 rotates at a high speed, the apparatus may be over heated or a fixed voltage cannot be generated. So, a deviation of fixed voltage is too high, the quality becomes unstable. At this time, the rotation speed detection sensor 65 senses a rotation speed of the blades 2or the fan blower. When it exceeds a certain set value, the vacuum pump 52 is driven, and the air of the vacuum pump chamber 60 is pumped out and is stored in the compression air tank 52. The magnetic brake device 58 is operated based on a rotation speed signal of the rotation speed detection sensor 65 or an information from a pressure meter 68 of the fan blower 9, so that the piston 60 moves up, and the brake magnet 61 is controlled to be near the blades 2 for thereby applying a brake, whereby the rotation speed of the windmill blade unit 3 is decreased.
[69] As the speed of the wind is low, when the rotation speed of the windmill blade unit 3 or the fan blower 26 detected by the rotation speed detection sensor 65 is lower than a set value, or when the vacuum pressure detected by the pressure meter 68 is lower than a set value, the solenoid valve 57 is opened, and the compression air stored in the compression air tank 52 is sprayed and supplied to the blades 2 via the compression air spray path 55 for thereby increasing the rotation speed. If necessary, the vacuum pump 39 installed on the upper circular plate 7 is driven, and the air is sprayed toward the blades 2 via the path 69 for thereby increasing rotation speed. The motor 35 may be driven using the battery 37b using the stored electricity for thereby increasing the rotation speed. It may be controlled in various different methods. [70] The power generation unit 12 has a flywheel 49 for thereby keeping a constant speed with an inertia force, so that a fixed stable voltage can be obtained.
[71] The air sprayed via the paths 8, 55 and 67 has a certain orientation by means of the guide plate 70 installed on the frame structure 5, so that the air is not dispersed, namely, is intensively guided toward the blades 2. When the apparatus of the present invention is installed near, a surplus air is applied toward the blades 2 of the near apparatus for thereby largely enhancing efficiency with the help of the above orientation.
[72] In the drawings, reference numeral 71 represents a support housing of the shaft 24.
[73]
Industrial Applicability
[74] As described above, a heavy windmill blade unit is floated in the air using a repulsive force of the permanent magnets for thereby removing a thrust. So, it is possible to easily generate a desired large rotational force with less wind energy for thereby increasing efficiency of a wind power generator. A pressure difference is induced, which induces a suction force between the upper and lower sides of the apparatus with the help of the fan blower using natural wind. The induced air is sprayed toward the blades for thereby obtaining a rotational force like the boiler collects waste heat. The electric power is generated using the flow energy of the air which moves up along the flow path based on the pressure difference. So, it is possible to largely increase the power generation efficiency as compared to the conventional method which generates power using nature wind.
[75] As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
[76]
Sequence Listing
[77] wind power generator, blades, rotary shaft, fan blower, magnets
[78]
[79]
[80]
[81]

Claims

Claims
[1] In an artificial atmosphere difference induction type wind power generator which comprises a main body which is vertically installed on the ground and has a fluid path for guiding an external air from a lower side to an upper side, with the upper and lower sides communicating with each other; a windmill blade unit which is installed at an upper side of the main body and has a plurality of radially disposed blades and rotates by means of wind; a rotary shaft which rotatably supports the windmill blade unit and is vertically installed and rotates along with the windmill blade unit; at least one fan blower which are provided on an upper side of the main body at a lower side of the windmill blade unit and rotate along with the rotation of the rotary shaft and suck the air from the lower side of the main body and spray the air toward the blades of the windmill blade unit; a Venturi tube which allows a fluid passage cross section area to decrease for thereby increasing the flow speed in the course that the air moves up into the fan blower via the main body with one end of the Venturi tube being connected at the fan blower directly or indirectly using a certain element and communicating with the fan blower, with the other end being connected and communicating with the main body; and a power generator which includes a turbine housing provided at an intermediate portion of the rotary shaft, a turbine which is rotatably accommodated in the turbine housing and rotates by the flowing speed of the air which rises via the Venturi tube, and a power generator which generates electric power using the rotational force of the turbine, an artificial atmosphere difference induction type wind power generator, comprising: a frame structure which is installed at an upper side of the main body for rotatably supporting the rotary shaft; a lower permanent magnet which is installed on an upper side of the frame structure, while covering the rotary shaft; and an upper permanent magnet which is installed at a lower surface of the windmill blade unit being opposite to the upper side of the frame structure and has a certain polarity to have a repulsive force with respect to the lower permanent magnet, wherein the windmill blade unit is engaged in a key engaging structure in which an axial direction movement is possible with respect to the rotary shaft vertically disposed, so that the windmill blade unit rotates while keeping a floated state in the air above the rotary shaft by means of a repulsive force gener ated between the upper and lower permanent magnets.
[2] The generator of claim 1, wherein a plurality of guide plates are installed on the frame structure for guiding the air discharged at a high speed from the fan blower toward the ends of the blades without dispersing the air.
[3] The generator of claim 1, wherein each fan blower receives a driving force from the rotary shaft via an acceleration driving force transfer unit using a gear or a belt.
[4] The generator of claim 1, wherein a starter driving motor is provided for driving a main driving gear of the acceleration driving force transfer unit fixed at the rotary shaft.
[5] The generator of claim 1, wherein a driving motor is installed for driving a main driving gear of the acceleration driving force transfer unit fixed at the rotary shaft, and said driving motor is controlled and driven for increasing the rotation speed when the rotation speed of the windmill blade unit is below a reference value.
[6] The generator of claim 1, wherein a flywheel is installed at a turbine rotary shaft of the power generation unit.
[7] The generator of claim 1, wherein said frame structure is supported by means of the main body with a vacuum tank chamber being disposed, and said Venturi tube communicated with the fan blower via the vacuum tank chamber.
[8] The generator of claim 7, further comprising: a compression air tank of which one end is connected with the other end of the air suction path connected via its one end with the vacuum tank chamber; a vacuum pump which is connected with the compression air tank and sucks the air of the vacuum tank chamber and compresses the compression air tank to a high pressure and stores the same; a compression air spray path of which one end is connected with the compression air tank and the other open end sprays compression air toward the blades for thereby facilitating the rotations of the same; a solenoid valve which opens and closes the air suction path and the compression air spray path; and a rotation speed detection sensor which detects the rotation speed of the windmill blade unit or the fan blower and opens only the solenoid valve of the air suction path when a detected value exceeds a certain set value and outputs a control signal for driving the vacuum pump and opens only the solenoid valve of the compression air spray path when the rotation speed is below a set value in accordance with a control signal outputted by the rotation speed detection sensor, respectively.
[9] The generator of claim 1, further comprising a heat storing boiler which heats water and stores the same for the use of warming a certain facility with an electric heater operated using a surplus electric power of the power generation unit.
[10] The generator of claim 1, wherein at least one magnetic brake unit consisting of a cylinder, a piston and a brake magnet disposed at a front end of the piston is provided at an upper circular plate of the frame structure, and said magnetic brake unit allows the brake magnet to move up when a rotation speed detected by the rotation speed detection sensor exceeds a certain set value and sucks the windmill blade unit with a magnetic force for thereby decreasing the rotation speed.
[11] The generator of claim 7, wherein a vacuum pump is installed at an upper circular plate of the vacuum tank chamber for pumping out the air of the vacuum tank chamber by connecting to the vacuum tank chamber via the path, and the air spray path is connected with the vacuum pump, so that the vacuum pump is driven when the windmill blade unit or the fan blower rotates at a certain speed below a set value for thereby pumping out the air of the vacuum tank chamber, whereby the air is sprayed toward the blades via the air spray path.
PCT/KR2007/003616 2006-07-31 2007-07-27 Artificial atmosphere difference induction type wind power generator WO2008016238A2 (en)

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