WO2011149375A1 - Rotor-type wind-operated power plant - Google Patents
Rotor-type wind-operated power plant Download PDFInfo
- Publication number
- WO2011149375A1 WO2011149375A1 PCT/RU2010/000373 RU2010000373W WO2011149375A1 WO 2011149375 A1 WO2011149375 A1 WO 2011149375A1 RU 2010000373 W RU2010000373 W RU 2010000373W WO 2011149375 A1 WO2011149375 A1 WO 2011149375A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- blades
- wind
- shaft
- confuser
- Prior art date
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- 238000009434 installation Methods 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
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- 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
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- 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
- F05B2240/20—Rotors
- F05B2240/33—Shrouds which are part of or which are rotating with the rotor
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- 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
- F05B2250/00—Geometry
- F05B2250/10—Geometry two-dimensional
- F05B2250/15—Geometry two-dimensional spiral
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Definitions
- the invention relates to energy, in particular, to the construction of wind turbines, in which the axis of rotation of the rotors can have a different position relative to the coordinate axes, but always coaxial with the direction of the air flow, which can be used to generate electricity by converting the energy of the air flow removed by ventilation installations from various premises (metro, factory shops, etc.), as well as at wind farms with the issue of it both to private and public power systems.
- a wind turbine comprising a rotor with curved blades, a guiding apparatus mounted to rotate relative to the rotor and made in the form of two groups of blades, in each of which the length of the blades increases in the direction of rotation of the rotor, and a weather vane located in the plane passing between the groups of blades ( SU 985402 A).
- part of the air flow directly affects the curved surfaces of the rotor blades, and the other part of the flow is captured by the guiding apparatus and, through its blades, is directed to the rotor blades, which ensures more complete use of the wind.
- the disadvantages of the known device include the impossibility of its operation without a weather vane, the presence of which complicates the design of the device and increases its inertia.
- the rotor blades along the entire length are made flat, that is, without regard to aerodynamics.
- a wind turbine is known, the turbine of which is formed by a series of profiled axisymmetric blades and is located inside the guide system formed by several fixedly mounted guide flaps, each of the turbine blades being a part of the side surface of the cylinder, the cross section of each of the flaps has a sinusoidal profile, the edges of the blades are oriented so as to ensure a smooth flow of air from the guide flaps onto the turbine blades (RU 2168059 C2).
- the known wind turbine can operate without a weather vane, which increases its maneuverability and makes it easy to manufacture.
- a rotor wind farm containing a rotor made in the form of a disk with blades mounted on it, made in the form of aerodynamic wings and located with a gap relative to the rotor shaft, mechanically connected with the shaft of the generator, deflecting the air flow fairing installed on the shaft in front of the rotor through the air flow and covering the gap between the inner edges of the blades, and the confuser placed in front of the fairing according to otoku and outlet covering it.
- Installation in the wind is carried out by a weather vane, which the rotor wind farm can be additionally equipped with, and the weather vane is mounted on an electric generator.
- the rotor wind farm can be additionally equipped with a guide vane with blades (RU 2270359 C1).
- RU 2270359 C1 the design of the known wind farm is rather complicated, and therefore unreliable at high wind speeds.
- the scheme of the air flow inside it provided by the well-known wind farm increases the efficiency of using wind energy, but not to the full extent.
- the objective of the present invention is to increase the completeness of the use of energy of the wind flow by braking it on the blades and disk, as well as simplifying the design of the rotor wind farm and its operation.
- the problem is solved in that in a rotor wind farm containing a rotor made in the form of a disk with blades mounted on it, made in the form of aerodynamic wings and located with a gap relative to the rotor shaft, mechanically connected with the generator shaft, a fairing mounted on the shaft in front of the rotor by the air flow and covering the gap between the inner edges of the blades, and the confuser placed in front of the rotor in the stream, according to the invention, the ends of the blades are made beveled to the axis of the axis and, as the converging tube is mounted on the peripheral parts of the ends of the blades to form a gap with a fairing.
- the problem is also solved by the fact that the ends of the blades are beveled to the axis of the shaft at an angle of 15-20 degrees, the cross-sectional area of the fairing is 25% - 35% of the disk area, and the projection area of the confuser on the disk is 35% - 45% of the disk area.
- the wind farm can be equipped with a weather vane mounted on an electric generator.
- Figure 1 presents the proposed rotary wind farm with a horizontal axis of the rotor.
- Figure 2 is a view A of figure 1.
- Fig.Z is a variant of the proposed rotary wind farm with a vertically located axis of the rotor.
- the proposed rotary wind farm (Fig. 1) comprises a rotor 1 made in the form of a disk 2 with blades 3 mounted thereon with a clearance relative to the shaft 4 of the rotor 1 mechanically connected through the sleeve 5 to the shaft of the electric generator 6.
- the blades 3 of the rotor 1 are made in the shape of the aerodynamic wings facing the axis of the shaft 4.
- the wind farm (figure 2) also contains a deflecting air flow fairing 7 mounted on the shaft 4 in front of the rotor 1 through the air flow and covering the gap between the inner edges of the blades her 3, and confuser 8, placed in front of the rotor 1 downstream.
- the ends of the blades 3 are made beveled to the axis of the shaft 4.
- the confuser 8 is installed on the peripheral parts of the ends of the blades 3 with the formation of a gap with a fairing 7. Moreover, the ends of the blades 3 are beveled to the axis of the shaft 4 at an angle of 15-20 degrees.
- the cross-sectional area of the fairing 7 is 25% - 35% of the area of the disk 2.
- the projection area of the confuser 8 on the disk 2 is 35% - 45% of the area of the disk 2.
- the decrease in the covered area of the disk 2 by the fairing 7 is less 25% reduces the efficiency of the use of wind flow energy and complicates the design of the rotor 1, and an increase of more than 35% reduces the working surface of the disk 2 and also reduces the speed of rotation of the rotor 1.
- Shelter embarrassment rum 8 in the wind flow of the disk 2 less than 35% will lead to a sharp decrease in the speed of rotation of the rotor 1, and an increase in cover more than 45% of the area of the disk 2 will reduce the required clearance between the confuser 8 and the fairing 7 and will also reduce the speed of rotation of the rotor 1.
- a weather vane 9 which the rotor wind power plant can be equipped with, and a weather vane 9 mounted on an electric generator 6.
- the wind power station is mounted on a support 10 with a connecting rotary device 1 1 for adjusting to the wind.
- the load output of the generator 6 is made through a converter (not shown conditionally) and a regulator 12, electrically connected to the switchboard 13.
- the generator 6 is connected to the battery 14.
- the wind flow simultaneously enters the fairing 7 and into the confuser 8, where it accelerates and at a high speed directly hits all the blades 3 of the rotor 1. Having given part of its kinetic energy to all the blades 3 at once, the air flow falls on the disk 2 of the rotor 1, where it brakes about the blades 3 and the disk 2, changes the direction of motion by 90 degrees, and then leaves the volume of the rotor 1 through the expanding holes formed by adjacent blades 3 and the inner surface of the confuser 8.
- the operation of all blades 3 at once, as well as the fairing 7 and the built-in o confuser 8, creating a wall-mounted rotating stream, will increase the completeness of the use of energy of the wind stream.
- the speed of rotation of the rotor 1 can reach several thousand revolutions per minute, which will allow to abandon the use of gearboxes.
- Rotor 1 in turn, can be used instead of propeller rotors, since it does not generate sounds of different frequencies. He has more coefficient of utilization of wind flow energy, not dangerous for flying birds, etc.
- the invention may find application for generating electricity by converting energy from an air stream removed by ventilation units from various rooms.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to power engineering, in particular to designs for wind power installations, and can be used for generating electrical energy by converting energy from an air stream discharged from various places (underground railways, factory floors, etc.) by ventilation systems, and also in wind power plants. The wind-operated power plant comprises a rotor which is in the form of a disc with blades mounted thereon, said blades being in the form of aerodynamic wings and being arranged so that a gap exists between the blades and the rotor shaft, which is mechanically connected to the shaft of an electric generator, a cowl which is mounted on the shaft upstream of the rotor in the direction of the air stream and encircles the gap between the internal edges of the blades, and a confuser which is arranged upstream of the rotor in the direction of the stream. The blade ends are tapered towards the axis of the shaft. The confuser is mounted on the peripheral parts of the blade ends so that a gap exists between the confuser and the cowl. As a result, an increase in the fullness of use of the energy from the wind stream is achieved, and also the design of a rotor-type wind-operated power plant and the operation thereof are substantially simplified.
Description
РОТОРНАЯ ВЕТРОЭЛЕКТРОСТАНЦИЯ ROTARY WIND POWER PLANT
Область применения Application area
Изобретение относится к энергетике, в частности, к конструкциям ветроэлектрических установок, у которых оси вращения роторов могут иметь различное положение относительно координатных осей, но всегда соосно с направлением воздушного потока, что может быть использовано для выработки электроэнергии за счет преобразования энергии воздушного потока, удаляемого вентиляционными установками из различных помещений (метро, заводские цеха и др.), а также на ветровых электростанциях с выдачей ее как в частную, так и в общественную энергосистемы. The invention relates to energy, in particular, to the construction of wind turbines, in which the axis of rotation of the rotors can have a different position relative to the coordinate axes, but always coaxial with the direction of the air flow, which can be used to generate electricity by converting the energy of the air flow removed by ventilation installations from various premises (metro, factory shops, etc.), as well as at wind farms with the issue of it both to private and public power systems.
Предшествующий уровень техники State of the art
Известен ветродвигатель, содержащий ротор с криволинейными лопастями, направляющий аппарат, установленный с возможностью поворота относительно ротора и выполненный в виде двух групп лопаток, в каждой из которых длина лопаток увеличивается в направлении вращения ротора, и флюгер, расположенный в плоскости, проходящей между группами лопаток (SU 985402 А). A wind turbine is known, comprising a rotor with curved blades, a guiding apparatus mounted to rotate relative to the rotor and made in the form of two groups of blades, in each of which the length of the blades increases in the direction of rotation of the rotor, and a weather vane located in the plane passing between the groups of blades ( SU 985402 A).
В известном ветродвигателе часть воздушного потока непосредственно воздействует на изогнутые поверхности лопастей ротора, а другая часть потока улавливается направляющим аппаратом и посредством его лопаток направляется на лопасти ротора, что обеспечивает более полное использование ветра. In the known wind turbine, part of the air flow directly affects the curved surfaces of the rotor blades, and the other part of the flow is captured by the guiding apparatus and, through its blades, is directed to the rotor blades, which ensures more complete use of the wind.
К недостаткам известного устройства следует отнести невозможность его работы без флюгера, наличие которого усложняет конструкцию устройства и повышает его инерционность. The disadvantages of the known device include the impossibility of its operation without a weather vane, the presence of which complicates the design of the device and increases its inertia.
Усложняет конструкцию известного устройства и необходимость установки лопаток различной длины, а натекание потока практически под
прямым углом к поверхности лопастей приводит к их ударному воздействию и, как следствие, появлению обратных потоков. Complicates the design of the known device and the need to install blades of various lengths, and the flow leakage is almost under right angle to the surface of the blades leads to their impact and, as a consequence, the appearance of reverse flows.
Кроме того, лопасти ротора по всей длине выполнены плоскими, то есть без учета аэродинамики. In addition, the rotor blades along the entire length are made flat, that is, without regard to aerodynamics.
Известен ветродвигатель, турбина которого образована рядом профилированных осесимметричных лопастей и расположена внутри направляющей системы, образованной несколькими установленными неподвижно направляющими створками, при этом каждая из лопастей турбины представляет собой часть боковой поверхности цилиндра, поперечное сечение каждой из створок имеет профиль в виде синусоиды, кромки лопастей сориентированы так, чтобы обеспечить плавное обтекание воздуха с направляющих створок на лопасти турбины (RU 2168059 С2). A wind turbine is known, the turbine of which is formed by a series of profiled axisymmetric blades and is located inside the guide system formed by several fixedly mounted guide flaps, each of the turbine blades being a part of the side surface of the cylinder, the cross section of each of the flaps has a sinusoidal profile, the edges of the blades are oriented so as to ensure a smooth flow of air from the guide flaps onto the turbine blades (RU 2168059 C2).
Известный ветродвигатель может работать без флюгера, что повышает его маневренность и делает его простым в изготовлении. The known wind turbine can operate without a weather vane, which increases its maneuverability and makes it easy to manufacture.
Однако полнота использования энергии ветра в данном устройстве недостаточна, что является одним из его главных недостатков. However, the completeness of the use of wind energy in this device is insufficient, which is one of its main disadvantages.
Наиболее близкой по технической сущности к предлагаемому изобретению является роторная ветроэлектростанция, содержащая ротор, выполненный в виде диска с установленными на нем лопастями, выполненными в форме аэродинамических крыльев и расположенными с зазором относительно вала ротора, механически связанного с валом электрогенератора, отклоняющий воздушный поток обтекатель, установленный на валу перед ротором по воздушному потоку и охватывающий зазор между внутренними кромками лопастей, и конфузор, размещенный перед обтекателем по потоку и на выходе его охватывающий. Установка на ветер производится флюгером, которым роторная ветроэлектростанция может быть дополнительно снабжена, причем флюгер установлен на электрогенераторе. Кроме того, роторная ветроэлектростанция может быть дополнительно снабжена направляющим аппаратом с лопатками (RU 2270359 С 1).
Однако конструкция известной ветроэлектростанции довольно сложна, и, следовательно, ненадежна при больших скоростях ветра. Кроме того, обеспечиваемая известной ветроэлектростанцией схема движения воздушного потока внутри нее повышает эффективность использования энергии ветра, однако не в полной мере. Closest to the technical nature of the present invention is a rotor wind farm containing a rotor made in the form of a disk with blades mounted on it, made in the form of aerodynamic wings and located with a gap relative to the rotor shaft, mechanically connected with the shaft of the generator, deflecting the air flow fairing installed on the shaft in front of the rotor through the air flow and covering the gap between the inner edges of the blades, and the confuser placed in front of the fairing according to otoku and outlet covering it. Installation in the wind is carried out by a weather vane, which the rotor wind farm can be additionally equipped with, and the weather vane is mounted on an electric generator. In addition, the rotor wind farm can be additionally equipped with a guide vane with blades (RU 2270359 C1). However, the design of the known wind farm is rather complicated, and therefore unreliable at high wind speeds. In addition, the scheme of the air flow inside it provided by the well-known wind farm increases the efficiency of using wind energy, but not to the full extent.
Раскрытие изобретения Disclosure of invention
Задачей настоящего изобретения является повышение полноты использования энергии ветрового потока путем торможения его о лопасти и диск, а также упрощение конструкции роторной ветроэлектростанции и ее эксплуатации. The objective of the present invention is to increase the completeness of the use of energy of the wind flow by braking it on the blades and disk, as well as simplifying the design of the rotor wind farm and its operation.
Поставленная задача решается тем, что в роторной ветроэлектростанции, содержащей ротор, выполненный в виде диска с установленными на нем лопастями, выполненными в форме аэродинамических крыльев и расположенными с зазором относительно вала ротора, механически связанного с валом электрогенератора, обтекатель, установленный на валу перед ротором по воздушному потоку и охватывающий зазор между внутренними кромками лопастей, и конфузор, размещенный перед ротором по потоку, согласно изобретению торцы лопастей выполнены скошенными к оси вала, а конфузор установлен на периферийных частях торцов лопастей с образованием зазора с обтекателем. The problem is solved in that in a rotor wind farm containing a rotor made in the form of a disk with blades mounted on it, made in the form of aerodynamic wings and located with a gap relative to the rotor shaft, mechanically connected with the generator shaft, a fairing mounted on the shaft in front of the rotor by the air flow and covering the gap between the inner edges of the blades, and the confuser placed in front of the rotor in the stream, according to the invention, the ends of the blades are made beveled to the axis of the axis and, as the converging tube is mounted on the peripheral parts of the ends of the blades to form a gap with a fairing.
Поставленная задача решается также тем, что торцы лопастей скошены к оси вала под углом, составляющим 15-20 градусов, площадь поперечного сечения обтекателя составляет 25% - 35 % площади диска, а площадь проекции конфузора на диск составляет 35% - 45% площади диска. The problem is also solved by the fact that the ends of the blades are beveled to the axis of the shaft at an angle of 15-20 degrees, the cross-sectional area of the fairing is 25% - 35% of the disk area, and the projection area of the confuser on the disk is 35% - 45% of the disk area.
Поставленная задача решается также тем, что ветроэлектростанция может быть снабжена флюгером, установленным на электрогенераторе. The problem is also solved by the fact that the wind farm can be equipped with a weather vane mounted on an electric generator.
Краткое описание чертежей Brief Description of the Drawings
На фиг.1 представлена предлагаемая роторная ветроэлектростанция с горизонтально расположенной осью ротора. Figure 1 presents the proposed rotary wind farm with a horizontal axis of the rotor.
На фиг.2 - вид А фиг.1.
На фиг.З - вариант предлагаемой роторной ветроэлектростанции с вертикально расположенной осью ротора. Figure 2 is a view A of figure 1. In Fig.Z is a variant of the proposed rotary wind farm with a vertically located axis of the rotor.
Лучший вариант осуществления изобретения The best embodiment of the invention
Предлагаемая роторная ветроэлектростанция (фиг.1) содержит ротор 1, выполненный в виде диска 2 с установленными на нем с лопастями 3, расположенными с зазором относительно вала 4 ротора 1, механически связанного через втулку 5 с валом электрогенератора 6. Лопасти 3 ротора 1 выполнены в форме аэродинамических крыльев, обращенных в сторону оси вала 4. Ветроэлектростанция (фиг.2) содержит также отклоняющий воздушный поток обтекатель 7, установленный на валу 4 перед ротором 1 по воздушному потоку и охватывающий зазор между внутренними кромками лопастей 3, и конфузор 8, размещенный перед ротором 1 по потоку. Торцы лопастей 3 выполнены скошенными к оси вала 4. Конфузор 8 установлен на периферийных частях торцов лопастей 3 с образованием зазора с обтекателем 7. При этом торцы лопастей 3 скошены к оси вала 4 под углом, составляющим 15-20 градусов. Площадь поперечного сечения обтекателя 7 составляет 25% - 35 % площади диска 2. Площадь проекции конфузора 8 на диск 2 составляет 35% - 45% площади диска 2. Такие геометрические соотношения получены экспериментально. Угол от 15 до 20 градусов обусловлен тем, что 15 градусов обеспечивают достаточную концентрацию потока ветра (скорость), увеличение больше 20 градусов будет влиять положительно на увеличение скорости потока ветра, но потребуется неоправданнее увеличение высоты лопастей 3. Уменьшение укрываемой площади диска 2 обтекателем 7 меньше 25% уменьшает эффективность использования энергии потока ветра и усложняет конструкцию ротора 1 , а увеличение больше 35% уменьшает рабочую поверхность диска 2 и также снижает скорость вращения ротора 1. Укрытие конфузором 8 по потоку ветра диска 2 меньше 35 % приведёт к резкому уменьшению скорости вращения ротора 1 , а увеличение укрытия больше 45 % площади диска 2 сократит требуемый зазор между конфузором 8 и обтекателем 7 и также приведёт к снижению скорости вращения ротора 1. Установка на ветер производится
флюгером 9, которым роторная ветроэлектростанция может быть снабжена, причем флюгер 9 установлен на электрогенераторе 6. Ветроэлектростанция установлена на опоре 10 с соединительным поворотным устройством 1 1 для настройки на ветер. Выход нагрузки электрогенератора 6 производится через преобразователь (условно не показан) и регулятор 12, электрически связанный с распределительным щитом 13. Кроме того, электрогенератор 6 связан с аккумуляторной батареей 14. The proposed rotary wind farm (Fig. 1) comprises a rotor 1 made in the form of a disk 2 with blades 3 mounted thereon with a clearance relative to the shaft 4 of the rotor 1 mechanically connected through the sleeve 5 to the shaft of the electric generator 6. The blades 3 of the rotor 1 are made in the shape of the aerodynamic wings facing the axis of the shaft 4. The wind farm (figure 2) also contains a deflecting air flow fairing 7 mounted on the shaft 4 in front of the rotor 1 through the air flow and covering the gap between the inner edges of the blades her 3, and confuser 8, placed in front of the rotor 1 downstream. The ends of the blades 3 are made beveled to the axis of the shaft 4. The confuser 8 is installed on the peripheral parts of the ends of the blades 3 with the formation of a gap with a fairing 7. Moreover, the ends of the blades 3 are beveled to the axis of the shaft 4 at an angle of 15-20 degrees. The cross-sectional area of the fairing 7 is 25% - 35% of the area of the disk 2. The projection area of the confuser 8 on the disk 2 is 35% - 45% of the area of the disk 2. Such geometric relationships are obtained experimentally. An angle of 15 to 20 degrees is due to the fact that 15 degrees provide a sufficient concentration of wind flow (speed), an increase of more than 20 degrees will have a positive effect on increasing the speed of wind flow, but it will require an unjustified increase in the height of the blades 3. The decrease in the covered area of the disk 2 by the fairing 7 is less 25% reduces the efficiency of the use of wind flow energy and complicates the design of the rotor 1, and an increase of more than 35% reduces the working surface of the disk 2 and also reduces the speed of rotation of the rotor 1. Shelter embarrassment rum 8 in the wind flow of the disk 2 less than 35% will lead to a sharp decrease in the speed of rotation of the rotor 1, and an increase in cover more than 45% of the area of the disk 2 will reduce the required clearance between the confuser 8 and the fairing 7 and will also reduce the speed of rotation of the rotor 1. Installation in the wind is produced a weather vane 9, which the rotor wind power plant can be equipped with, and a weather vane 9 mounted on an electric generator 6. The wind power station is mounted on a support 10 with a connecting rotary device 1 1 for adjusting to the wind. The load output of the generator 6 is made through a converter (not shown conditionally) and a regulator 12, electrically connected to the switchboard 13. In addition, the generator 6 is connected to the battery 14.
Работа описываемой ветроэлектростанции осуществляется следующим образом. The operation of the described wind farm is as follows.
Поток ветра одновременно поступает на обтекатель 7 и в конфузор 8, там ускоряется и с большой скоростью попадает сразу на все лопасти 3 ротора 1. Отдав часть своей кинетической энергии сразу всем лопастям 3, воздушный поток попадает на диск 2 ротора 1, где происходит его торможение о лопасти 3 и диск 2, меняет направление движения на 90 градусов, а затем покидает объем ротора 1 через расширяющиеся отверстия, образованные смежными лопастями 3 и внутренней поверхностью конфузора 8. Работа сразу всех лопастей 3, а также наличие обтекателя 7 и встроенного конфузора 8, создающего пристенный вращающийся поток, позволит повысить полноту использования энергии ветрового потока. Скорость вращения ротора 1 может достигать несколько тысяч оборотов в минуту, что позволит отказаться от применения редукторов. The wind flow simultaneously enters the fairing 7 and into the confuser 8, where it accelerates and at a high speed directly hits all the blades 3 of the rotor 1. Having given part of its kinetic energy to all the blades 3 at once, the air flow falls on the disk 2 of the rotor 1, where it brakes about the blades 3 and the disk 2, changes the direction of motion by 90 degrees, and then leaves the volume of the rotor 1 through the expanding holes formed by adjacent blades 3 and the inner surface of the confuser 8. The operation of all blades 3 at once, as well as the fairing 7 and the built-in o confuser 8, creating a wall-mounted rotating stream, will increase the completeness of the use of energy of the wind stream. The speed of rotation of the rotor 1 can reach several thousand revolutions per minute, which will allow to abandon the use of gearboxes.
В варианте в случае неподвижной установки ветроэлектростанции (фиг.З) в креплении 15, например, над вентиляционной шахтой 16 (ось вала 4 вертикальна) воздушный поток также одновременно поступает на обтекатель 7 и в конфузор 8, там ускоряется и с большой скоростью попадает сразу на все лопасти 3 ротора 1. Отдав часть своей кинетической энергии сразу всем лопастям 3, попадает на диск 2 ротора 1. при наличии естественного горизонтального потока ветра он может одновременно воздействовать на лопасти 3 вне зависимости от направления ветра. In the embodiment, in the case of a stationary installation of a wind power plant (Fig. 3) in the mount 15, for example, above the ventilation shaft 16 (the axis of the shaft 4 is vertical), the air flow also enters the fairing 7 and into the confuser 8, there it accelerates and immediately hits the high speed all blades 3 of rotor 1. Having given part of their kinetic energy to all blades 3 at once, it falls on disk 2 of rotor 1. in the presence of a natural horizontal wind flow, it can simultaneously act on blades 3, regardless of the direction of the wind.
Ротор 1 в свою очередь может быть использован вместо пропеллерных роторов, так как не генерирует звуки различной частоты. Он имеет больший
коэффициент использования энергии ветрового потока, не опасен для пролетающих птиц и т.д. Rotor 1, in turn, can be used instead of propeller rotors, since it does not generate sounds of different frequencies. He has more coefficient of utilization of wind flow energy, not dangerous for flying birds, etc.
Таким образом, использование предлагаемой ветроэлектростанции с встроенным конфузором 8, который обеспечивает укрытие части диска 2 с лопастями 3, и обтекателем 7 позволит повысить полноту использования энергии ветрового потока, а также существенно упростить конструкцию роторной ветроэлектростанции и ее эксплуатацию. Thus, the use of the proposed wind farm with a built-in confuser 8, which provides shelter for part of the disk 2 with blades 3, and a cowl 7 will increase the completeness of the use of wind flow energy, as well as significantly simplify the design of the rotor wind farm and its operation.
Промышленная применимость Industrial applicability
Изобретение может найти применение для выработки электроэнергии за счет преобразования энергии воздушного потока, удаляемого вентиляционными установками из различных помещений.
The invention may find application for generating electricity by converting energy from an air stream removed by ventilation units from various rooms.
Claims
1. Роторная ветроэлектростанция, содержащая ротор, выполненный в виде диска с установленными на нем лопастями, выполненными в форме аэродинамических крыльев и расположенными с зазором относительно вала ротора, механически связанного с валом электрогенератора, обтекатель, установленный на валу перед ротором по воздушному потоку и охватывающий зазор между внутренними кромками лопастей, и конфузор, размещенный перед ротором по потоку, отличающаяся тем, что торцы лопастей выполнены скошенными к оси вала, а конфузор установлен на периферийных частях торцов лопастей с образованием зазора с обтекателем. 1. A rotor wind farm containing a rotor made in the form of a disk with blades mounted on it, made in the form of aerodynamic wings and located with a gap relative to the rotor shaft, mechanically connected with the shaft of the electric generator, a fairing mounted on the shaft in front of the rotor by air flow and covering the gap between the inner edges of the blades, and a confuser placed in front of the rotor in a flow, characterized in that the ends of the blades are made beveled to the axis of the shaft, and the confuser is mounted on the periphery s parts of the ends of the blades to form a gap with a fairing.
2. Роторная ветроэлектростанция по п.1, отличающаяся тем, что торцы лопастей скошены к оси вала под углом, составляющим 15-20 градусов, площадь поперечного сечения обтекателя составляет 25% - 35 % площади диска, а площадь проекции конфузора на диск составляет 35% - 45% площади диска. 2. The rotor wind farm according to claim 1, characterized in that the ends of the blades are beveled to the axis of the shaft at an angle of 15-20 degrees, the cross-sectional area of the fairing is 25% - 35% of the disk area, and the projection area of the confuser on the disk is 35% - 45% of the disk area.
3. Роторная ветроэлектростанция по п.п.1 или 2, отличающаяся тем, что она снабжена флюгером, установленным на электрогенераторе. 3. Rotary wind power plant according to claims 1 or 2, characterized in that it is equipped with a weather vane mounted on an electric generator.
Applications Claiming Priority (2)
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RU2010120728/06A RU2425249C1 (en) | 2010-05-24 | 2010-05-24 | Rotary wind-driven electric power station |
RU2010120728 | 2010-05-24 |
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WO2011149375A1 true WO2011149375A1 (en) | 2011-12-01 |
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PCT/RU2010/000373 WO2011149375A1 (en) | 2010-05-24 | 2010-07-06 | Rotor-type wind-operated power plant |
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WO (1) | WO2011149375A1 (en) |
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WO2015192102A1 (en) * | 2014-06-12 | 2015-12-17 | Imperial Wind Corporation | Horizontally channeled vertical axis wind turbine |
RU199034U1 (en) * | 2020-03-13 | 2020-08-11 | Роман Ефимович Либерзон | WIND POWER GENERATOR |
RU207267U1 (en) * | 2021-06-10 | 2021-10-21 | Роман Ефимович Либерзон | WIND UNIT |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1733681A1 (en) * | 1990-04-27 | 1992-05-15 | Научно-Производственное Объединение По Исследованию И Проектированию Энергетического Оборудования Им.И.И.Ползунова | Wind wheel |
US20040042894A1 (en) * | 2001-01-17 | 2004-03-04 | J.C. Smith | Wind-driven electrical power-generating device |
RU2231679C2 (en) * | 2002-04-15 | 2004-06-27 | Бяков Евгений Михайлович | Windmill electric generating plant |
RU2270359C1 (en) * | 2005-01-18 | 2006-02-20 | Алексей Васильевич Иванайский | Rotary windmill-electric generating plant |
-
2010
- 2010-05-24 RU RU2010120728/06A patent/RU2425249C1/en not_active IP Right Cessation
- 2010-07-06 WO PCT/RU2010/000373 patent/WO2011149375A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1733681A1 (en) * | 1990-04-27 | 1992-05-15 | Научно-Производственное Объединение По Исследованию И Проектированию Энергетического Оборудования Им.И.И.Ползунова | Wind wheel |
US20040042894A1 (en) * | 2001-01-17 | 2004-03-04 | J.C. Smith | Wind-driven electrical power-generating device |
RU2231679C2 (en) * | 2002-04-15 | 2004-06-27 | Бяков Евгений Михайлович | Windmill electric generating plant |
RU2270359C1 (en) * | 2005-01-18 | 2006-02-20 | Алексей Васильевич Иванайский | Rotary windmill-electric generating plant |
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