JP7232559B1 - Sand thermal storage type wind power generator. - Google Patents

Sand thermal storage type wind power generator. Download PDF

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JP7232559B1
JP7232559B1 JP2022126035A JP2022126035A JP7232559B1 JP 7232559 B1 JP7232559 B1 JP 7232559B1 JP 2022126035 A JP2022126035 A JP 2022126035A JP 2022126035 A JP2022126035 A JP 2022126035A JP 7232559 B1 JP7232559 B1 JP 7232559B1
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JP2024022734A (en
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精一 林
幸子 林
寿一 林
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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 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • 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 
    • F03D3/06—Rotors
    • 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
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/18—Combinations of wind motors with apparatus storing energy storing heat
    • 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
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • F03D9/35—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects
    • F03D9/37—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects with means for enhancing the air flow within the tower, e.g. by heating
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

【課題】砂容器内に砂ベース材と風洞を有し、風車と、風力発電機とを備え、前記風洞内の上昇気流によって風力発電を行う砂蓄熱式風力発電装置を提供することにある。【解決手段】前記砂蓄熱式風力発電装置は、砂容器内に風洞の周囲に前記砂ベース材を配置し、風車と、風力発電機とを備え、太陽光照射加熱等により前記砂ベース材において蓄熱を可能とし、前記風洞内の空気の温度上昇により、前記風洞内の空気の内外温度差と、前記風洞の開口部の位置の高低差と、前記風洞の開口部の実効面積とに関係する空気量の上昇気流が流れ、前記風車の駆動に作用し、前記風車により駆動される前記風力発電機にて発電を可能とすることを特徴とする。【選択図】図１An object of the present invention is to provide a sand thermal storage type wind power generator having a sand base material and a wind tunnel in a sand container, a wind turbine and a wind power generator, and performing wind power generation by means of rising air currents in the wind tunnel. The sand thermal storage type wind turbine generator includes the sand base material arranged around a wind tunnel in a sand container, a windmill, and a wind power generator, and heats the sand base material by solar radiation heating or the like. It enables heat storage, and the temperature rise of the air in the wind tunnel is related to the temperature difference between the inside and outside of the air in the wind tunnel, the difference in height of the opening of the wind tunnel, and the effective area of the opening of the wind tunnel. An ascending current of air flow acts on the driving of the windmill, enabling the wind power generator driven by the windmill to generate power. [Selection drawing] Fig. 1

Description

本発明は、砂容器内に熱エネルギーを蓄熱する砂ベース材と風洞を有し、
外部より前記砂容器内の前記砂ベース材に蓄熱を可能とし、前記風洞内の空気の温度上昇による上昇気流によって、風車の駆動に作用し、前記風車により駆動される風力発電機にて、発電を行うことを特徴とする、砂蓄熱式風力発電装置に関する。 The present invention has a sand base material and a wind tunnel for storing thermal energy in a sand container,
Heat can be stored in the sand base material in the sand container from the outside, and the rising air current caused by the temperature rise of the air in the wind tunnel acts on the drive of the wind turbine, and the wind power generator driven by the wind turbine generates power. It relates to a sand thermal storage type wind power generator characterized by performing

特許文献１に記載には、円形平板状の車板から複数の羽根平が延出した形状をなした回転羽根であり、回転羽根の厚さは全体が均一で、各羽根平の回転方向の前縁には、風下方向が開口し、断面が弧状に形成された曲板部材が取り付けられていることを特徴とする軸流タービン風車の回転羽根。と記載されている。 Patent Document 1 describes a rotary blade having a shape in which a plurality of flat blades extend from a circular plate-shaped wheel plate. A rotating blade of an axial-flow turbine windmill, wherein a curved plate member having an arc-shaped cross section and opening in a leeward direction is attached to a front edge of the blade. is described.

また、特許文献２に記載には、翼への気流Ｗ2と翼の第９線分に対応する面との間に負角βをもたせるように翼を取付けることにより、ベルヌーイの定理により説明される揚力に、さらに負角βによる負の圧力を加えることができる。従って、大きなトルクを得ることができ、風車効率を増大できる。と記載されている。 Further, in Patent Document 2, the blade is attached so that a negative angle β is formed between the airflow W2 to the blade and the plane corresponding to the ninth line segment of the blade. In addition to lift, negative pressure can be added with a negative angle β. Therefore, a large torque can be obtained and the wind turbine efficiency can be increased. is described.

また、特許文献３に記載には、同心円軸上に回転軸を有する揚力型風車と抗力型風車を備えた垂直軸型風車に関する。さらに言えば、揚力型風車と抗力型風車を備えており、マグナス効果に加え、表面効果も利用することで高トルクを生み出すことができるため、小型であるにも拘わらず高い回転効率を実現することができる垂直軸型風車に関する。と記載されている。 Further, Patent Document 3 relates to a vertical axis wind turbine having a lift wind turbine and a drag wind turbine having rotating shafts on concentric axes. Furthermore, it is equipped with a lift-type windmill and a drag-type windmill, and in addition to the Magnus effect, it can generate high torque by using the surface effect, so it achieves high rotational efficiency despite its small size. It relates to a vertical axis wind turbine capable of is described.

また、特許文献４に記載には、回転始動時又は微風時にはサボニウス翼の特性を利用し、且つ、風速の大小に拘わらずダリウス翼及びサボニウス翼の回転エネルギを効率的に電気エネルギに変換させ得る風力発電装置。と記載されている。 Further, as described in Patent Document 4, it is possible to utilize the characteristics of the Savonius wing at the start of rotation or when the wind is light, and to efficiently convert the rotational energy of the Darrieus wing and the Savonius wing into electrical energy regardless of the wind speed. Wind power generator. is described.

また、特許文献５に記載には、本発明に係る風力発電機は、風のエネルギーを回転に変換するプロペラと、励磁電流を流すことで磁石になる電磁石を有する電磁石型発電機と、励磁電流を制御する励磁電流制御部と、電磁石型発電機の電力を蓄える蓄電部とを備え、励磁電流制御部は、出力電圧が充電電圧未満になると、励磁電流を流すように制御する。と記載されている。 Further, in Patent Document 5, a wind power generator according to the present invention includes a propeller that converts wind energy into rotation, an electromagnet type generator having an electromagnet that becomes a magnet when an excitation current is applied, and an excitation current and a power storage unit that stores the electric power of the electromagnet generator. The excitation current control unit controls the excitation current to flow when the output voltage becomes less than the charging voltage. is described.

また、特許文献６に記載には、基礎面から延直方向に立設した筒状部材にて構成された風洞と、前記筒状部材の周壁から法線方向に延出した複数の集風板と、前記集風板相互間及び筒状部材の上端開口を閉塞する天板と、前記筒状部材の周壁に設けられて前記集風板によって集約された風を前記風洞内に導く複数の風取込口と、前記風取込口に設けられて筒状部材外部から筒状部材内部への風の流通のみを許容し、内部から外部への流通を規制する逆流防止手段と、隣接する集風板間に設けられて集風板によって集約された風を下方に向けてガイドする複数のガイド板と、前記風洞の一端部から吹き出す風によって駆動されるタービンと、前記タービンにより駆動される発電機とを備えていることを特徴とする風力発電装置。と記載されている。 Further, Patent Document 6 describes a wind tunnel configured by a cylindrical member erected in a vertical direction from a base surface, and a plurality of wind collecting plates extending in a normal direction from a peripheral wall of the cylindrical member. a top plate that closes the space between the air collecting plates and the upper end opening of the tubular member; and a plurality of winds that are provided on the peripheral wall of the cylindrical member and guide the wind collected by the air collecting plates into the wind tunnel. an intake port; backflow prevention means provided at the wind intake port for allowing only the flow of air from the outside of the tubular member to the inside of the tubular member and restricting the flow from the inside to the outside; A plurality of guide plates provided between the wind plates for guiding downward the wind collected by the wind collecting plates, a turbine driven by the wind blown out from one end of the wind tunnel, and power generation driven by the turbine. A wind turbine generator comprising: is described.

特開２０１２―２４１７０５公報Japanese Unexamined Patent Application Publication No. 2012-241705 特開平０６－１５９９２２公報JP-A-06-159922 特開２０１８－０２１４７６公報Japanese Patent Application Laid-Open No. 2018-021476 特開２００７―４０２３９公報Japanese Unexamined Patent Application Publication No. 2007-40239 特開２０１８－２０７６２８公報Japanese Patent Application Laid-Open No. 2018-207628 再表２００８／０７５６７６6公報Table 2008/0756766

特許文献１、特許文献２、特許文献３、特許文献４、特許文献５は、風車に関係する発明であり、風洞との流体の作用に基づく、風力発電方法の記述はありません。 Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, and Patent Document 5 are inventions related to wind turbines, and do not describe a wind power generation method based on the action of a fluid with a wind tunnel.

特許文献６は、延直方向に立設した風洞と、前記筒状部材の周壁に設けられて前記集風板によって集約された風を前記風洞内に導く複数の風取込口と、隣接する集風板間に設けられて集風板によって集約された風によって駆動されるタービンにより駆動される風力発電装置であって、複数の風取込口をもつ風洞の構成は複雑であり、外部の風の影響（風塵等）を直接受け、建設費・維持費は高く、メンテナンス作業も困難と想定される。 In Patent Document 6, a wind tunnel erected in a vertical direction and a plurality of wind intake ports provided in the peripheral wall of the tubular member for guiding the wind collected by the wind collecting plate into the wind tunnel are adjacent to each other. A wind power generator driven by a turbine provided between wind collecting plates and driven by wind collected by the wind collecting plates, the configuration of the wind tunnel having a plurality of wind intake openings is complicated, and external Directly affected by wind (wind dust, etc.), construction and maintenance costs are high, and maintenance work is assumed to be difficult.

本発明は、熱エネルギーを蓄熱する前記砂容器内の砂ベース材に含まれる砂利、砂類に蓄熱し、前記風洞は前記砂容器内にあって、前記風洞内の流速は弱風から発電が可能であり、前記風洞・前記風車は前記砂容器内に、前記風力発電機は砂容器設置部の中にあるため損傷が少なく、交換頻度が少なく、落雷等の被害に遭いにくく、蓄熱材料費は安価であり、建設費・維持費が安く、設置場所は需要地に隣接して設置可能であり、送電コストの低減に役立つことが可能である。発電量に対して投資金額が少ない。これらを効果的に提供することを目的としている。 According to the present invention, heat is stored in the gravel and sand contained in the sand base material in the sand container that stores heat energy, and the wind tunnel is located in the sand container, and the flow velocity in the wind tunnel is weak wind to generate power. Since the wind tunnel and the wind turbine are in the sand container, and the wind power generator is in the sand container installation part, there is little damage, the frequency of replacement is low, and damage such as lightning strikes is less likely to occur, and the cost of heat storage materials is inexpensive, construction and maintenance costs are low, and the installation site can be installed adjacent to the demand area, which can help reduce transmission costs. The amount of investment is small compared to the amount of power generated. The aim is to provide them effectively.

本発明に係る砂蓄熱式風力発電装置において、
砂利、砂類を含む砂ベース材と、
上部開口部と下部開口部を有する風洞と、
前記風洞の側壁の周囲に配置され、前記砂ベース材を収納した砂容器と
風流入口を有すると共に、前記風洞に接続された風洞前室と、
前記風洞内又は前記風洞前室内に設置された風車と、
前記風車に接続されて駆動される風力発電機と、を備え、
前記砂ベース材は、太陽光照射加熱、電力加熱、又は温水加熱のうち少なくともいずれかにより加熱されて熱エネルギーとして蓄熱され、前記風洞内の空気の温度上昇による上昇気流が生じるように構成れており、前記上昇気流により前記風車を駆動し、前記風車と連動し駆動される前記風力発電機により発電を行うことを特徴とする。 In the sand thermal storage type wind turbine generator according to the present invention,
sand-based materials including gravel and sand;
a wind tunnel having an upper opening and a lower opening;
a wind tunnel front chamber disposed around the side wall of the wind tunnel, having a sand container containing the sand base material and an air inlet, and connected to the wind tunnel;
a wind turbine installed in the wind tunnel or in the wind tunnel front room;
and a wind power generator connected to and driven by the wind turbine,
The sand base material is heated by at least one of sunlight irradiation heating, electric heating, and hot water heating, and stored as heat energy, and is configured to generate an ascending air current due to the temperature rise of the air in the wind tunnel. The wind turbine is driven by the rising air current, and the wind power generator driven in conjunction with the wind turbine generates power.

また、本発明に係る砂蓄熱式風力発電装置において、前記砂容器は、上面から観た外形形状が略円形、略楕円形、略半円形、略三日月形半円形、略三角形、略四角形、又は多角形の形状を有することを特徴とする。例えば、太陽光照射加熱を受ける面を大きくする略楕円形、略半円形、略三日月形半円形、略三角形、略四角形とする。又暴風に強くするために略円形とすることができる。形状はこれ等に限定されるものではない。 Further, in the sand thermal storage type wind power generator according to the present invention, the sand container has an external shape when viewed from above that is approximately circular, approximately elliptical, approximately semicircular, approximately crescent semicircular, approximately triangular, approximately quadrangular, or It is characterized by having a polygonal shape. For example, the shape may be substantially elliptical, substantially semicircular, substantially crescent-shaped semicircular, substantially triangular, or substantially quadrangular so as to enlarge the surface to be heated by sunlight irradiation. It can also be made substantially circular for strong wind resistance. The shape is not limited to these.

また、本発明に係る砂蓄熱式風力発電装置において、前記風洞内には、軸流タービン型風車が設置され、前記風洞前室内には、垂直軸型風車が設置されることを特徴とする。
なお、前記軸流タービン型風車が設置される場合は、前記風洞の側壁の形状は円筒形状とする。
また、前記風車及び風力発電機を複数台設置可能である。 Further, in the sand thermal storage type wind power generator according to the present invention, an axial flow turbine type wind turbine is installed in the wind tunnel, and a vertical axis type wind turbine is installed in the wind tunnel front chamber.
When the axial flow turbine type wind turbine is installed, the shape of the side wall of the wind tunnel is cylindrical.
Moreover, it is possible to install a plurality of windmills and wind power generators.

また、本発明に係る砂蓄熱式風力発電装置において、前記砂ベース材は砂利、砂類を含み、
前記砂ベース材に熱エネルギーとして蓄熱し、前記風洞内の空気の温度上昇による、
前記風洞内の空気の内外温度差と、前記風洞の開口部の位置の高低差と、
前記風洞の開口部の実効面積と、に関係する空気量の上昇気流によって、
前記風車の駆動に作用し、前記風車と連動し駆動される前記風力発電機により、発電を行うことを特徴とする。 Further, in the sand thermal storage type wind power generator according to the present invention, the sand base material includes gravel and sand,
By storing heat as heat energy in the sand base material and increasing the temperature of the air in the wind tunnel,
a temperature difference between the inside and outside of the air in the wind tunnel, a height difference at the position of the opening of the wind tunnel,
Due to the updraft of the air volume related to the effective area of the opening of the wind tunnel,
Power is generated by the wind power generator that acts on the drive of the wind turbine and is driven in conjunction with the wind turbine.

また、本発明に係る砂蓄熱式風力発電装置において、前記風車は、ベルヌーイ定理式風車、プロペラ式風車、マグナス式風車、ダリウス式風車、又はサボニウス式風車のうち少なくともいずれかを有して、前記風車を駆動し、前記風車により駆動される前記風力発電機にて、発電を行うことを特徴としてもよい。 Further, in the sand thermal storage type wind power generator according to the present invention, the windmill has at least one of a Bernoulli theorem windmill, a propeller windmill, a Magnus windmill, a Darrieus windmill, and a Savonius windmill, A windmill may be driven, and the wind power generator driven by the windmill may generate power.

また、本発明に係る砂蓄熱式風力発電装置において、
外部より前記砂容器内の前記砂ベース材として含まれる砂利、砂類に蓄熱を可能とする手段として、
太陽光照射加熱の他、電力加熱として前記砂容器内の前記砂ベース材に加熱用電熱ヒータを配置して外部から加熱し蓄熱を行い、又は温水加熱として前記砂容器内の前記砂ベース材に加熱用温水パイプを配置して外部から加熱し蓄熱することを特徴としてもよい。 Further, in the sand thermal storage type wind turbine generator according to the present invention,
As a means for accumulating heat from the outside in the gravel and sand contained as the sand base material in the sand container,
In addition to solar irradiation heating, an electric heater for heating is placed in the sand base material in the sand container as electric heating to store heat from the outside, or heat is stored in the sand base material in the sand container as hot water heating. It may be characterized by arranging a hot water pipe for heating to heat and store heat from the outside.

また、本発明に係る砂蓄熱式風力発電装置において、熱エネルギーを蓄熱する前記砂容器の外周は、太陽光照射加熱にて前記砂容器の外部周辺から蓄熱を行う場合は吸熱材（黒色スチール等）を設定し、電力加熱、又は温水加熱等にて直接内部蓄熱を行う場合は断熱材（断熱スチール等）を設定することを特徴としてもよい。
なお、放熱面当たりの重量と保熱のために断熱材をどのように入れるかなどで変わってくる。
石を蓄熱、放熱させる場合、蓄熱した熱エネルギーは、かなりのピーク時タイムラグとピークエネルギー減衰を伴って放熱されている。 Further, in the sand thermal storage type wind turbine generator according to the present invention, the outer periphery of the sand container that stores thermal energy is a heat absorbing material (black steel, etc.) when heat is stored from the outer periphery of the sand container by solar irradiation heating. ) is set, and when direct internal heat storage is performed by electric heating or hot water heating, a heat insulating material (heat insulating steel, etc.) may be set.
In addition, it changes depending on the weight per heat dissipation surface and how the heat insulating material is inserted for heat retention.
When heat is stored and released from stone, the stored thermal energy is released with a considerable peak time lag and peak energy decay.

また、本発明に係る砂蓄熱式風力発電装置において、必要に応じて、太陽光照射加熱をしていない場合は、前記砂容器の周辺は断熱材を用いて開閉する構成とすることを特徴としてもよい。 Further, in the sand thermal storage type wind turbine generator according to the present invention, the sand container is configured to be opened and closed using a heat insulating material as needed when the solar irradiation heating is not performed. good too.

また、本発明に係る砂蓄熱式風力発電装置において、前記砂ベースは各種砂利、各種砂、各種小石等を、砂利、砂類として、乾燥した前記砂ベース材を構成することを特徴としてもよい。 Further, in the sand thermal storage type wind turbine generator according to the present invention, the sand base may be composed of various types of gravel, various types of sand, various types of pebbles, etc. as gravel, sand, and the like, and the dried sand base material. .

本発明は、前記砂蓄熱式風力発電装置として、前記砂容器内に熱エネルギーを蓄熱する前記砂ベース材と前記風洞を有し、前記風車と、前記風力発電機とを備え、太陽光照射加熱等により前記砂容器内の前記砂ベース材において蓄熱を可能とし、前記風洞内の空気の温度上昇による、前記風洞内の空気の内外温度差と、前記風洞の開口部の位置の高低差と、前記風洞の開口部の実効面積とに関係する空気量の上昇気流が流れ、風車の駆動に作用し、前記風車により駆動される前記風力発電機にて発電を可能とすることができる。 According to the present invention, the sand thermal storage type wind turbine generator includes the sand base material for storing thermal energy in the sand container and the wind tunnel, the wind turbine and the wind power generator, and is heated by solar irradiation. heat storage in the sand base material in the sand container, and the temperature difference between the inside and outside of the air in the wind tunnel due to the temperature rise of the air in the wind tunnel, the height difference in the position of the opening of the wind tunnel, An updraft with an amount of air related to the effective area of the opening of the wind tunnel flows and acts on the drive of the windmill, enabling the wind power generator driven by the windmill to generate electricity.

図１は、本発明の実施形態にかる砂蓄熱式風力発電装置Ａの例である。FIG. 1 is an example of a sand thermal storage type wind turbine generator A according to an embodiment of the present invention. 図２は、本発明の実施形態かかる砂蓄熱式風力発電装置Ｂの例である。FIG. 2 is an example of a sand thermal storage type wind turbine generator B according to an embodiment of the present invention.

以下、本発明の各実施するための形態を説明する。 Hereinafter, each embodiment of the present invention will be described.

砂ベース材を高温で加熱することで、大容量の熱エネルギーを貯蔵することが可能であること。
さらに、熱エネルギーを再び熱として抽出されていることが分かっていた。例えば、摂氏500～600程度の加熱で8メガワット程度に該当する発電が可能な熱エネルギーとされていた。 It is possible to store a large amount of thermal energy by heating the sand-based material at high temperatures.
Furthermore, it was found that the thermal energy was extracted again as heat. For example, it was considered to be the thermal energy that can generate power equivalent to about 8 megawatts when heated to about 500 to 600 degrees Celsius.

また、前記砂ベース材を蓄熱、放熱させる場合、蓄熱した熱エネルギーは、かなりのピーク時タイムラグとピークエネルギー減衰を伴って放熱されている。放熱面当たりの重量と保熱のために断熱材をどのように入れるかなどで変わる。例えば、無垢の大理石の例として、厚さ１０ｃｍに積んだものの片面を暖めると、大雑把に言って反対面から放熱のピークは凡そ７時間ぐらいのタイムラグを伴って表れる。この場合の減衰率は、断熱材なしの場合、ピーク入力熱エネルギーの５０％弱程度になるとされている。 Further, when heat is stored and released from the sand base material, the stored heat energy is released with a considerable peak time lag and peak energy attenuation. It changes depending on the weight per heat dissipation surface and how to put the heat insulating material for heat retention. For example, as an example of solid marble, if one side of a 10 cm-thick stack is heated, roughly speaking, the peak of heat radiation from the other side appears with a time lag of about 7 hours. The attenuation rate in this case is said to be about 50% or less of the peak input heat energy without insulation.

以下に、本発明は、砂ベース材の大容量の熱エネルギーを貯蔵することが可能であることを利用した風力発電装置について詳しく説明する。 In the following, the present invention will be described in detail for a wind power plant utilizing the large capacity of thermal energy storage of sand-based materials.

本発明に係る熱エネルギーを蓄熱する前記砂ベース材は、各種砂利、各種砂、各種小石等を、砂利、砂類とし、乾燥した前記砂ベース材を構成する。 The sand-based material for storing thermal energy according to the present invention is composed of various types of gravel, various types of sand, various types of pebbles, etc. as gravel, sand, etc., and constitutes the dried sand-based material.

本発明に係る、風洞の温度差による上昇気流量を、以下の数（1）に示す。

Qt = αA√{2gh(θi-θo)/Ti}×3600 （１）

但し、Qt：風洞内の温度差による上昇気流量[m3/h]、αA：風洞の開口部の実効面積[m2]、
θi：風洞内空気温度[℃]、θo：外気温度[℃]、θi―θo：風洞内の空気の内外温度差[℃]、h：風洞の開口部の位置の高低差[m]、g：重力加速度[m/s2]、Ti：室内絶対温度[K])である。
本発明の実施例として、前記砂ベース材は砂利、砂類等であって、
前記砂ベース材に熱エネルギーとして蓄熱し、前記風洞内の空気の温度上昇による、
前記風洞内の空気の内外温度差と、前記風洞の開口部の位置の高低差と、
前記風洞の開口部の実効面積と、に関係する空気量の上昇気流によって、
前記風車の駆動に作用し、前記風車と連動し駆動される前記風力発電機により、
発電を行うことを特徴とする、砂蓄熱式風力発電装置である。 The following equation (1) shows the amount of rising air due to the temperature difference in the wind tunnel according to the present invention.

Qt = αA√{2gh(θi-θo)/Ti}×3600 (1)

However, Qt: rising air flow due to temperature difference in the wind tunnel [m 3 /h], αA: effective area of the opening of the wind tunnel [m 2 ],
θi: Air temperature inside the wind tunnel [°C], θo: Outside air temperature [°C], θi-θo: Temperature difference between the inside and outside of the wind tunnel [°C], h: Height difference at the opening of the wind tunnel [m], g : gravitational acceleration [m/s 2 ], Ti: indoor absolute temperature [K]).
As an embodiment of the present invention, the sand-based material is gravel, sand, etc.,
By storing heat as heat energy in the sand base material and increasing the temperature of the air in the wind tunnel,
a temperature difference between the inside and outside of the air in the wind tunnel, a height difference at the position of the opening of the wind tunnel,
Due to the updraft of the air volume related to the effective area of the opening of the wind tunnel,
By the wind power generator that acts on the drive of the wind turbine and is driven in conjunction with the wind turbine,
The sand thermal storage type wind power generator is characterized by generating power.

本発明の一実施例として、前記砂蓄熱式風力発電装置Ａは製品構成としての概念図１を示す。
本発明に係る砂蓄熱式風力発電装置Ａにおいて、
砂容器１と、砂容器設置部２があって、
砂利、又は砂類を含む砂ベース材３と、
上部開口部４と下部開口部５有する風洞６と、
前記風洞６の側壁の周囲に配置され、砂ベース材３を収納した前記砂容器１と、
砂容器設置部２に、風流入口７を有すると共に、前記風洞６内に設置された軸流タービン型の風車８と、前記風車８に接続されて駆動される風力発電機１０と、を備え、
前記砂ベース材３は、太陽光照射加熱、電力加熱、又は温水加熱のうち少なくともいずれかにより加熱されて熱エネルギーとして蓄熱され、前記風洞６内の空気の温度上昇による上昇気流が生じるように構成れており、前記上昇気流により前記風車８を駆動し、前記風車８と連動し駆動される前記風力発電機１０により発電を行うことを特徴とする。 As an embodiment of the present invention, the sand thermal storage type wind turbine generator A is shown in conceptual diagram 1 as a product configuration.
In the sand thermal storage type wind turbine generator A according to the present invention,
There are a sand container 1 and a sand container setting part 2,
a sand base material 3 containing gravel or sand;
a wind tunnel 6 having an upper opening 4 and a lower opening 5;
the sand container 1 disposed around the side wall of the wind tunnel 6 and containing the sand base material 3;
The sand container installation part 2 has a wind inlet 7, and is equipped with an axial flow turbine type windmill 8 installed in the wind tunnel 6, and a wind power generator 10 connected to and driven by the windmill 8,
The sand base material 3 is heated by at least one of sunlight irradiation heating, electric heating, and hot water heating, and heat is stored as thermal energy. The wind turbine 8 is driven by the rising air current, and the wind power generator 10 driven in conjunction with the wind turbine 8 generates power.

本発明の一実施例として、本発明に係る砂蓄熱式風力発電装置Ａにおいて、
前記砂容器１は、上面から観た外形形状（又は横断面の外形形状）が略円形、略楕円形、略半円形、略三日月形半円形、略三角形、略四角形、又は多角形の形状を有することを特徴することができる。 As an embodiment of the present invention, in the sand thermal storage type wind turbine generator A according to the present invention,
The sand container 1 has an external shape (or cross-sectional external shape) viewed from above that is approximately circular, approximately elliptical, approximately semicircular, approximately crescent semicircular, approximately triangular, approximately quadrangular, or polygonal. It can be characterized as having

また、本発明の一実施例として、前記風車８は、ベルヌーイ定理式風車、又はプロペラ式風車等のうち少なくともいずれかを有して、前記風車８を駆動し、前記風車８により駆動される前記風力発電機１０にて、発電を行うことを特徴とする、砂蓄熱式風力発電装置である。 Further, as an embodiment of the present invention, the windmill 8 has at least one of a Bernoulli theorem windmill, a propeller windmill, etc., and drives the windmill 8. The sand thermal storage type wind power generator is characterized in that the wind power generator 10 generates power.

例えば、前記風車８の例として前記特許文献等には、前記風車の翼への気流と翼の線分に対応する面との間に負角をもたせるように翼を取付けることにより、ベルヌーイの定理により説明される揚力に、さらに負角による負の圧力を加えることができる。従って、大きなトルクを得ることができ、前記風車効率を増大できることが記載されている。 For example, as an example of the wind turbine 8, in the above patent documents, Bernoulli's theorem In addition to the lift described by , we can add negative pressure due to negative angles. Therefore, it is described that a large torque can be obtained and the efficiency of the wind turbine can be increased.

また、本発明の一実施例として、砂蓄熱式風力発電装置Ｂは製品構成としての概念図２を示す。
本発明に係る砂蓄熱式風力発電装置Ｂにおいて、砂容器１と、砂容器設置部２があって、
砂容器１に、砂利、又は砂類を含む砂ベース材３と、
上部開口部４と下部開口部５有する風洞６と、
前記風洞６の側壁の周囲に配置され、砂ベース材３を収納した前記砂容器１と、
砂容器設置部２に、風流入口７を有すると共に、前記風洞６に接続された風洞前室９と、
前記風洞前室９内に設置された垂直軸型風車の風車１８と、
前記風車１８に接続されて駆動される風力発電機２０と、を備え、
前記砂ベース材３は、太陽光照射加熱、電力加熱、又は温水加熱のうち少なくともいずれかにより加熱されて熱エネルギーとして蓄熱され、前記風洞６内の空気の温度上昇による上昇気流が生じるように構成れており、前記上昇気流により前記風車１８を駆動し、前記風車１８と連動し駆動される前記風力発電機２０により発電を行うことを特徴とする。 Further, as an embodiment of the present invention, the sand thermal storage type wind turbine generator B shows a conceptual diagram 2 as a product configuration.
In the sand thermal storage type wind turbine generator B according to the present invention, there are a sand container 1 and a sand container installation portion 2,
sand container 1, sand base material 3 containing gravel or sand;
a wind tunnel 6 having an upper opening 4 and a lower opening 5;
the sand container 1 disposed around the side wall of the wind tunnel 6 and containing the sand base material 3;
a wind tunnel front chamber 9 having an air inlet 7 in the sand container installation portion 2 and connected to the wind tunnel 6;
a wind turbine 18 of a vertical axis wind turbine installed in the wind tunnel front chamber 9;
A wind power generator 20 connected to and driven by the wind turbine 18,
The sand base material 3 is heated by at least one of sunlight irradiation heating, electric heating, and hot water heating, and heat is stored as heat energy, and an upward air current is generated due to the temperature rise of the air in the wind tunnel 6. The wind turbine 18 is driven by the rising air current, and the wind power generator 20 driven in conjunction with the wind turbine 18 generates power.

本発明の一実施例として、本発明に係る砂蓄熱式風力発電装置Bにおいて、
前記砂容器１は、上面から観た外形形状（又は横断面の外形形状）が略円形、略楕円形、略半円形、略三日月形半円形、略三角形、略四角形、又は多角形の形状を有することを特徴することができる。 As an embodiment of the present invention, in the sand thermal storage type wind turbine generator B according to the present invention,
The sand container 1 has an external shape (or cross-sectional external shape) viewed from above that is approximately circular, approximately elliptical, approximately semicircular, approximately crescent semicircular, approximately triangular, approximately quadrangular, or polygonal. It can be characterized as having

また、本発明の一実施例として、前記風車１８の前記垂直軸型風車の例として、マグナス式風車、ダリウス式風車、又はサボニウス式風車の、少なくともいずれかを有して、前記風車１８を回転し、前記風力発電機２０にて発電を行うことを特徴とする、前記砂蓄熱式風力発電装置である。 Further, as an embodiment of the present invention, the wind turbine 18 has at least one of a Magnus windmill, a Darrieus windmill, and a Savonius windmill as an example of the vertical axis windmill, and rotates the windmill 18. The sand thermal storage type wind power generator is characterized in that the wind power generator 20 generates power.

なお、特許文献に記載には、前記風車１８の前記垂直軸型風車の例として、同心円軸上に回転軸を有する揚力型風車と抗力型風車を備えた垂直軸型風車に関する。揚力型風車と抗力型風車を備えており、マグナス効果に加え、表面効果も利用することで高トルクを生み出すことができるため、小型であるにも拘わらず高い回転効率を実現することができる垂直軸型風車に関する。と記述されている。 As an example of the vertical axis wind turbine of the wind turbine 18, the patent document describes a vertical axis wind turbine including a lift wind turbine and a drag wind turbine having rotating shafts on concentric axes. Equipped with a lift-type windmill and a drag-type windmill, in addition to the Magnus effect, it is possible to generate high torque by using the surface effect, so it is possible to achieve high rotational efficiency despite its small size. It relates to an axial wind turbine. is described.

また、本発明の一実施例として、外部より前記砂容器内の前記砂ベース材３としての砂利、砂類等に蓄熱を可能とする手段として、太陽光照射加熱の他、電力加熱として前記砂容器内の前記砂ベース材に加熱用電熱ヒータを配置して外部から加熱し蓄熱を行い、又は温水加熱として前記砂容器内の前記砂ベース材３に加熱用温水パイプを配置して外部から加熱し蓄熱することを特徴とする、前記砂蓄熱式風力発電装置である。 Further, as an embodiment of the present invention, as a means for accumulating heat in gravel, sand, etc. as the sand base material 3 in the sand container from the outside, the sand can be heated by electric power heating in addition to solar irradiation heating. An electric heater for heating is arranged in the sand base material in the container to heat and store heat from the outside, or a hot water pipe for heating is arranged in the sand base material 3 in the sand container to heat from the outside for hot water heating. The sand thermal storage type wind power generator is characterized in that the sand heat storage type wind power generator is characterized by:

本発明は、熱エネルギーとして砂ベースの蓄熱であり、前記砂容器内に前記風洞があって、基本的には円筒であり、シンプルな構成であり、前記風洞、及び前記風車は砂容器、砂容器設置部内にあるため損傷が少なく、交換頻度が少なく、落雷等の被害に遭いにくく、また蓄熱する材料費は前記砂ベース材として用いる各種砂、各種砂利、各種小石等を含む前記砂利、砂類等として安価であり、建設費・維持費が安い。前記風洞内の風速は弱風から発電が可能であり、設置場所は需要地に隣接して設置可能であり、送電コストの低減に役立つことが可能である。発電量に対して投資金額が少ない等の特徴を有し、効果的に実施し得ることが可能である。 The present invention is a sand-based heat storage as thermal energy, with the wind tunnel inside the sand container, which is basically a cylinder, and has a simple configuration, and the wind tunnel and the windmill are sand containers, sand Since it is inside the container installation part, it is less damaged, less frequently replaced, less likely to be damaged by lightning strikes, etc., and the material cost for heat storage is the above-mentioned sand base material, various gravel, various gravel including various pebbles, etc. It is inexpensive as a class, etc., and construction and maintenance costs are low. The wind speed in the wind tunnel can generate power from a weak wind, and the installation location can be installed adjacent to the demand area, which can help reduce power transmission costs. It has features such as a small amount of investment for the amount of power generated, and can be implemented effectively.

１ 砂容器
２ 砂容器設置部
３ 砂ベース材
４ 上部開口部
５ 下部開口部
６ 風洞
７ 風流入口
８、１８、 風車
９ 風洞前室
１０、２０ 風力発電機



1 sand container 2 sand container installation part 3 sand base material 4 upper opening 5 lower opening 6 wind tunnel 7 wind inlets 8, 18 windmill 9 wind tunnel front chambers 10, 20 wind power generator

Claims (4)

砂利、砂類を含む砂ベース材と、
上部開口部と下部開口部を有する風洞と、
前記風洞の側壁の周囲に配置され、前記砂ベース材を収納した砂容器と、
風流入口を有すると共に、前記風洞に接続された風洞前室と、
前記風洞内又は前記風洞前室内に設置された風車と、
前記風車に接続されて駆動される風力発電機と、を備え、
前記砂ベース材は、太陽光照射加熱、電力加熱、又は温水加熱のうち少なくともいずれかにより加熱されて熱エネルギーとして蓄熱され、前記風洞内の空気の温度上昇による、前記風洞内の空気の内外温度差と、前記風洞の開口部の位置の高低差と、前記風洞の開口部の実効面積と、に関係する空気量の上昇気流によって、前記風車を駆動し、前記風車と連動し駆動される前記風力発電機により発電を行うことを特徴とする砂蓄熱式風力発電装置。 sand-based materials including gravel and sand;
a wind tunnel having an upper opening and a lower opening;
a sand container disposed around the side wall of the wind tunnel and containing the sand base material;
a wind tunnel anteroom having an air inlet and connected to the wind tunnel;
a wind turbine installed in the wind tunnel or in the wind tunnel front room;
and a wind power generator connected to and driven by the wind turbine,
The sand base material is heated by at least one of sunlight irradiation heating, electric heating, and hot water heating , and heat is stored as heat energy. The wind turbine is driven by the updraft of the air volume related to the difference, the height difference of the position of the opening of the wind tunnel, and the effective area of the opening of the wind tunnel, and the wind turbine is driven in conjunction with the wind turbine. A sand thermal storage type wind power generator characterized by generating power with a wind power generator. 前記砂蓄熱式風力発電装置において、前記砂ベース材は、各種砂利、各種砂、又は各種小石等を有して、熱エネルギーとして蓄熱され、In the sand thermal storage type wind turbine generator, the sand base material includes various types of gravel, various types of sand, various types of pebbles, etc., and stores heat as thermal energy,
前記風車は、ベルヌーイ定理式風車、プロペラ式風車、マグナス式風車、ダリウス式風車、又はサボニウス式風車のうち少なくともいずれかを有して、前記風車を駆動し、前記風車と連動し駆動される前記風力発電機により発電を行うことを特徴とする特徴とする請求項1に記載の砂蓄熱式風力発電装置。The windmill has at least one of a Bernoulli theorem windmill, a propeller windmill, a Magnus windmill, a Darrieus windmill, and a Savonius windmill, drives the windmill, and is driven in conjunction with the windmill. 2. The sand thermal storage type wind power generator according to claim 1, wherein power is generated by a wind power generator. 前記砂容器は、上面から観た外形形状が略円形、略楕円形、略半円形、略三日月形半円形、略三角形、略四角形、又は多角形の形状を有することを特徴とする請求項1に記載の砂蓄熱式風力発電装置。 1. The sand container has a substantially circular, substantially elliptical, substantially semicircular, substantially crescent semicircular, substantially triangular, substantially quadrangular, or polygonal shape when viewed from above. The sand thermal storage type wind turbine generator according to . 前記砂蓄熱式風力発電装置において、前記風洞内には、軸流タービン型風車が設置され、前記風洞前室内には、垂直軸型風車が設置され、前記風車及び風力発電機を複数台設置されることを特徴とする請求項1又は請求項２に記載の砂蓄熱式風力発電装置。 In the sand thermal storage type wind power generator, an axial flow turbine wind turbine is installed in the wind tunnel, a vertical axis wind turbine is installed in the wind tunnel front chamber, and a plurality of wind turbines and wind power generators are installed. The sand thermal storage type wind turbine generator according to claim 1 or 2, characterized in that:
JP2022126035A 2022-08-08 2022-08-08 Sand thermal storage type wind power generator. Active JP7232559B1 (en)

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CN1766309A (en) 2005-10-20 2006-05-03 河北农业大学 High efficiency solar electricity generator
JP2007046520A (en) 2005-08-09 2007-02-22 Toyo Ceramics Kk Wind power generation device
CN202258061U (en) 2011-10-21 2012-05-30 生爱菊 Experiment teaching aid for simulating wind power generation
JP2015004277A (en) 2013-06-19 2015-01-08 株式会社落雷抑制システムズ Wind turbine generator
CN107101314A (en) 2017-01-05 2017-08-29 潍坊工商职业学院 A kind of intelligent ecological saves passive room

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007046520A (en) 2005-08-09 2007-02-22 Toyo Ceramics Kk Wind power generation device
CN1766309A (en) 2005-10-20 2006-05-03 河北农业大学 High efficiency solar electricity generator
CN202258061U (en) 2011-10-21 2012-05-30 生爱菊 Experiment teaching aid for simulating wind power generation
JP2015004277A (en) 2013-06-19 2015-01-08 株式会社落雷抑制システムズ Wind turbine generator
CN107101314A (en) 2017-01-05 2017-08-29 潍坊工商职业学院 A kind of intelligent ecological saves passive room

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