JP5432013B2 - Temporary lightning rod for wind power generation facilities and construction method of the lightning rod - Google Patents
Temporary lightning rod for wind power generation facilities and construction method of the lightning rod Download PDFInfo
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- 238000010248 power generation Methods 0.000 title claims description 94
- 238000010276 construction Methods 0.000 title claims description 33
- 239000004020 conductor Substances 0.000 claims description 97
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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
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- 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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Description
この発明は、施工期間中の風力発電設備に設ける仮設用の避雷針、及びその避雷針の施工方法に関するものである。 The present invention relates to a temporary lightning rod provided in a wind power generation facility during a construction period, and a method for constructing the lightning rod.
風力発電設備は通常、風量が多く、遮蔽物の少ない土地、海岸、丘陵地等に建設される。また、風力発電設備の高さは、風力発電設備の種類にもよるが、大きいもので１００メートルを超えるものもある。従って、落雷の影響を受けやすい。 Wind power generation facilities are usually constructed on land, beaches, hills, etc. where there is a large amount of wind and there are few shields. Moreover, although the height of a wind power generation equipment is based on the kind of wind power generation equipment, there are some which are large and exceed 100 meters. Therefore, it is susceptible to lightning strikes.
通常の風力発電設備は、構造上、ブレード(＝羽根)の部分が一番高い位置にあることになるが、当該ブレードの部分に落雷しても、大電流に耐えられる接地線を当該ブレードから地面まで引き下げ、地絡(＝アース)される構成となっている。または、特許文献１に示すように、当該ブレードが絶縁体で形成され、またナセル上に避雷針を設置する構成となっている。つまり、完成後の風力発電設備においては、種々の落雷対策がなされており、たとえ落雷しても、当該風力発電設備が雷電流によって破損したり焼損したりする可能性は少ない。
しかしながら、風力発電設備の施工を開始してから完成するまでには、通常約２〜３週間の期間が必要である。この風力発電設備の施工期間中は、当該風力発電設備に避雷針等を設ける等の落雷対策がなされておらず、当該風力発電設備に落雷した場合には、雷電流によって破損したり焼損したりするおそれがあった。 However, it usually takes a period of about 2 to 3 weeks from the start of construction of the wind power generation facility to completion. During the construction period of this wind power generation facility, lightning strike countermeasures such as installing a lightning rod on the wind power generation facility have not been taken, and if a lightning strike occurs on the wind power generation facility, it will be damaged or burned by lightning current. There was a fear.
そこで、この発明は、上記従来技術を考慮したものであって、施工期間中の風力発電設備に設ける仮設用の避雷針及びその避雷針の施工方法の提供を目的とするものである。 In view of the above, the present invention takes the above-described conventional technology into consideration, and an object thereof is to provide a temporary lightning rod provided in a wind power generation facility during a construction period and a method for constructing the lightning rod.
前記目的を達成するため、請求項１の発明では、風力によって羽根を回転させ、当該回転力を利用して発電する風力発電設備の施工中に設ける避雷針において、
当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フック上に、複数の棒状の導体が立設され、各導体の先端部は金属製線で接続され、
また各導体は当該導体を流れる電流が地絡するように地面と接続され、
前記導体は、下部が二股に分かれた支持部材から成り、当該支持部材の二股部下端の前後に二つのアングル材を固定して当該アングル材の中央部間に間隙を設け、当該間隙に前記吊り上げ用フックを嵌め入れ、前記各アングル材及び吊り上げ用フックに予め設けられた貫通孔にねじ部材を通してナットで締め付け、ナセルカバーの上面に固定した、仮設用避雷針とした。
In order to achieve the above object, in the invention of claim 1, in a lightning rod provided during construction of a wind power generation facility that rotates blades by wind force and uses the rotational force to generate power,
On the lifting hook provided in the longitudinal direction of the nacelle cover of the wind power generation facility, a plurality of rod-shaped conductors are erected, and the tips of the conductors are connected by metal wires,
Each conductor is connected to the ground so that the current flowing through the conductor is grounded,
The conductor is composed of a support member whose lower part is divided into two parts, and two angle members are fixed to the front and rear of the lower end of the fork part of the support member to provide a gap between the central parts of the angle member, and the lifting is performed in the gap. A temporary lightning rod that is fitted on the upper surface of the nacelle cover by fitting a hook for use and tightening with a nut through a screw member in a through hole provided in advance in each of the angle members and the lifting hook.
請求項２の発明では、前記風力発電設備のロータ軸の外周に設けられている既設のねじ孔を利用して棒状の導体を当該箇所に当接させ、その上からねじ部材を螺着して、当該導体の下部をナセルの前面に固定し、当該導体の先端部と、請求項１に記載の導体の先端部とを金属製線で接続した、請求項１に記載の仮設用避雷針とした。 In the invention of claim 2, a rod-shaped conductor is brought into contact with the portion using an existing screw hole provided on the outer periphery of the rotor shaft of the wind power generation facility, and a screw member is screwed thereon. A temporary lightning rod according to claim 1, wherein the lower portion of the conductor is fixed to the front surface of the nacelle, and the tip portion of the conductor and the tip portion of the conductor according to claim 1 are connected by a metal wire. .
請求項３の発明では、ロータ軸の外周付近のナセルカバーの内側から外側に、棒状の導体を突き出させて固定した、請求項１に記載の仮設用避雷針とした。 According to a third aspect of the present invention, there is provided the temporary lightning rod according to the first aspect, in which a rod-like conductor is protruded and fixed from the inner side to the outer side of the nacelle cover near the outer periphery of the rotor shaft.
請求項４の発明では、請求項３に記載の棒状の導体の先端部と、請求項１に記載の棒状の導体の先端部とを、金属製線で接続した、請求項３に記載の仮設用避雷針とした。 According to a fourth aspect of the present invention, the tip of the rod-shaped conductor according to the third aspect and the tip of the rod-shaped conductor according to the first aspect are connected by a metal wire. A lightning rod was used.
請求項５の発明では、前記導体が、ナセルの幅方向に左右に突き出した横棒を有した略Ｔ字型又は略十字型であって、各導体の当該横棒の複数の箇所は金属製線で接続されている、請求項１に記載の仮設用避雷針とした。 According to a fifth aspect of the present invention, the conductor is substantially T-shaped or substantially cross-shaped with horizontal bars protruding left and right in the width direction of the nacelle, and a plurality of portions of the horizontal bars of each conductor are made of metal. It was set as the temporary lightning rod for temporary attachment of Claim 1 connected with the wire | line.
請求項６の発明では、請求項２に記載の導体又は請求項３に記載の導体が、ナセルの幅方向に左右に突き出した横棒を有した略Ｔ字型又は略十字型であって、当該導体の横棒と、請求項５に記載の各導体の横棒の複数の箇所は金属製線で接続されている、請求項５に記載の仮設用避雷針とした。 In the invention of claim 6, the conductor according to claim 2 or the conductor according to claim 3 is substantially T-shaped or substantially cross-shaped with a horizontal bar protruding left and right in the width direction of the nacelle, The temporary bar lightning rod according to claim 5, wherein the conductor horizontal bar and a plurality of portions of the horizontal bar of each conductor according to claim 5 are connected by a metal wire.
請求項７の発明では、風力によって羽根を回転させ、当該回転力を利用して発電する風力発電設備の施工中に設ける避雷針において、
当該風力発電設備のナセルの外周が金属製のネットで覆われ、当該ネットは当該ネットを流れる電流が地絡するように地面と接続されている、仮設用避雷針とした。
In the invention of claim 7, in the lightning rod provided during construction of the wind power generation facility that rotates the blades by wind power and generates power using the rotational force,
The outer periphery of the nacelle of the wind power generation facility was covered with a metal net, and the net was a temporary lightning rod connected to the ground so that the current flowing through the net was grounded.
請求項８の発明では、前記ネットは外側面から複数の棒状の導体が突き出している、請求項７に記載の仮設用避雷針とした。 In the invention of claim 8, the net is the temporary lightning rod according to claim 7, in which a plurality of rod-shaped conductors protrude from the outer surface.
請求項９の発明では、風力によって羽根を回転させ、当該回転力を利用して発電する風力発電設備の施工中に設ける避雷針において、
当該風力発電設備の支柱の上端部からナセルの幅方向に左右に、井桁状又は格子状に組んだ棒状の導体が突き出されており、
当該導体は当該導体を流れる電流が地絡するように地面と接続されている、仮設用避雷針とした。
In the invention of claim 9, in the lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
From the upper end of the column of the wind power generation facility, bar-shaped conductors that are assembled in the form of a grid or a lattice protrude from the left and right in the width direction of the nacelle,
The conductor is a temporary lightning rod connected to the ground so that a current flowing through the conductor is grounded.
請求項１０の発明では、風力によって羽根を回転させ、当該回転力を利用して発電する風力発電設備の施工中に設ける避雷針において、
当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フック上に、複数の棒状の導体が立設され、
当該導体は、ナセルの幅方向に左右に突き出した横棒を有した略Ｔ字型又は略十字型であり、
ナセル上の長手方向に立設された複数の導体の上、及びナセル外周に金属製のネットが被せられ、
また前記各導体は当該導体を流れる電流が地絡するように地面と接続されており、
前記導体は、下部が二股に分かれた支持部材から成り、当該支持部材の二股部下端の前後に二つのアングル材を固定して当該アングル材の中央部間に間隙を設け、当該間隙に前記吊り上げ用フックを嵌め入れ、前記各アングル材及び吊り上げ用フックに予め設けられた貫通孔にねじ部材を通してナットで締め付け、ナセルカバーの上面に固定した、仮設用避雷針とした。
In the invention of claim 10, in the lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
A plurality of rod-shaped conductors are erected on the lifting hooks provided in the longitudinal direction of the nacelle cover of the wind power generation facility,
The conductor is substantially T-shaped or substantially cross-shaped with horizontal bars protruding left and right in the width direction of the nacelle,
A metal net is put on the plurality of conductors erected in the longitudinal direction on the nacelle and on the outer periphery of the nacelle,
Each of the conductors is connected to the ground so that a current flowing through the conductor is grounded.
The conductor is composed of a support member whose lower part is divided into two parts, and two angle members are fixed to the front and rear of the lower end of the fork part of the support member to provide a gap between the central parts of the angle member, and the lifting is performed in the gap. A temporary lightning rod that is fitted on the upper surface of the nacelle cover by fitting a hook for use and tightening with a nut through a screw member in a through hole provided in advance in each of the angle members and the lifting hook.
請求項１１の発明では、風力によって羽根を回転させ、当該回転力を利用して発電する風力発電設備の施工中に仮設用避雷針を設置する施工方法であって、
棒状の導体を当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フックに夫々立設するステップと、
当該各棒状の導体の先端又は横棒を金属製線で接続するステップと、
当該各棒状の導体を、当該導体を流れる電流が地絡するように地面と接続するステップを有する、請求項１又は５に記載の仮設用避雷針の施工方法とした。
The invention of claim 11 is a construction method of installing a lightning rod for temporary installation during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
A step of standing a plurality of rod-shaped conductors on lifting hooks provided in the longitudinal direction of the nacelle cover of the wind power generation facility;
Connecting the tip or horizontal bar of each bar-shaped conductor with a metal wire;
The temporary lightning rod construction method according to claim 1 or 5, further comprising a step of connecting each of the rod-shaped conductors to the ground so that a current flowing through the conductor is grounded.
請求項１２の発明では、前記吊り上げ用フックに夫々立設するステップ及び前記金属製線で接続するステップを予め地上で行い、仮設用の避雷針が設置されたナセルカバーを吊り上げて、風力発電設備のナセルに被せる、請求項１１に記載の仮設用避雷針の施工方法とした。 In the invention of claim 12, the step of standing on the lifting hook and the step of connecting with the metal wire are previously performed on the ground, the nacelle cover on which a temporary lightning rod is installed is lifted, and the wind power generation facility It was set as the construction method of the temporary lightning rod of Claim 11 which covers a nacelle.
請求項１〜１２の発明によれば、施工期間中の風力発電設備に、設置が容易な仮設用の避雷針を設ける構成としたため、施工期間中の当該風力発電設備への落雷を遮蔽し、当該風力発電設備が雷電流によって破損したり焼損したりすることを回避するものである。 According to invention of Claims 1-12, since it was set as the structure which provides the temporary lightning rod for temporary installation in the wind power generation equipment in a construction period, the lightning strike to the said wind power generation equipment in a construction period is shielded, The wind power generation equipment is prevented from being damaged or burnt out by lightning current.
また、請求項１及び５の発明によれば、風力発電設備のナセルカバーにあらかじめ設けられている吊り上げ用のフックを利用して、導体を立設する構成としたため、既存の風力発電設備を改造せずに、そのまま仮設用の避雷器を取り付けることができ、便宜である。 Further, according to the inventions of claims 1 and 5, since the conductor is erected using the lifting hook provided in advance on the nacelle cover of the wind power generation facility, the existing wind power generation facility is modified. For convenience, a temporary lightning arrester can be attached as it is.
また特に、請求項３の発明によれば、ロータ軸の外周付近のナセルカバーの内側から外側に、棒状の導体を突き出させて固定する構成としたため、作業員は、ナセルカバーの内側で作業を行うことによって、棒状の導体をナセルカバーの内側から外側に突き出させて固定することができ、作業員の作業負担が軽減され、作業の安全性が高まる。更に、請求項３の発明によれば、請求項１の発明の構成に加えて、ロータ軸の外周付近のナセルカバーの内側から外側に、棒状の導体を突き出させるため、避雷針の保護範囲がさらに広がって、落雷に対する風力発電設備の安全性が高まり、便宜である。 In particular, according to the invention of claim 3, since the rod-shaped conductor is protruded and fixed from the inside to the outside of the nacelle cover near the outer periphery of the rotor shaft, the worker can work inside the nacelle cover. By doing so, the rod-like conductor can be protruded and fixed from the inner side of the nacelle cover, the work burden on the worker is reduced, and the safety of the work is increased. Furthermore, according to the invention of claim 3, in addition to the structure of the invention of claim 1, the rod-shaped conductor is projected from the inside to the outside of the nacelle cover near the outer periphery of the rotor shaft, so that the protection range of the lightning rod is further increased. It is convenient because it increases the safety of wind power generation facilities against lightning strikes.
また特に、請求項５の発明によれば、風力発電設備のナセルカバーに設けられている吊り上げ用のフックを利用して複数の略Ｔ字型又は略十字型の導体を立設し、各導体の複数の箇所を金属製線で接続する避雷針を設ける構成としたため、避雷針の保護範囲が広がって、落雷に対する風力発電設備の安全性が高まり、便宜である。 In particular, according to the invention of claim 5, a plurality of substantially T-shaped or substantially cross-shaped conductors are erected using the lifting hooks provided on the nacelle cover of the wind power generation facility, Since the lightning rod that connects the plurality of locations with metal wires is provided, the protection range of the lightning rod is expanded, and the safety of the wind power generation equipment against lightning strikes is increased, which is convenient.
また請求項２、４、６の発明によれば、請求項１又は請求項５の発明の構成に加えて、ナセルの前端部に棒状の導体を立設し、又はロータ軸の外周付近のナセルカバーの内側から外側に、棒状の導体を突き出させ、当該棒状の導体と、ナセルカバーに設けられている吊り上げ用のフックを利用して立設した導体とを金属製線で接続するため、避雷針の保護範囲がさらに広がって、落雷に対する風力発電設備の安全性が高まり、便宜である。 Further, according to the invention of claims 2, 4 and 6, in addition to the configuration of the invention of claim 1 or 5, a rod-like conductor is erected at the front end of the nacelle, or the nacelle near the outer periphery of the rotor shaft A rod-shaped conductor is projected from the inside to the outside of the cover, and the rod-shaped conductor is connected to a conductor erected using a lifting hook provided on the nacelle cover with a metal wire. This further expands the scope of protection of the wind power generation facilities and increases the safety of wind power generation facilities against lightning.
また、雷雲が流れると雲の中に発生した電荷もそれに伴い移動するため、地表に誘起される反対の電荷との間に電位差が生じ、誘導雷が発生する。そしてこの誘導雷には、雲にプラスの電荷が発生するのか、マイナスの電荷が発生するのかによって、雷雲から地表に電流が流れる場合と、地表から雷雲に電流が流れる場合がある。そこで特に請求項７の発明によれば、風力発電設備のナセルの外周を金属製のネットで覆う構成としたため、また請求項８の発明によれば、風力発電設備のナセルの外周を複数の棒状の導体が突き出した金属製のネットで覆う構成としたため、通常の落雷や誘導雷によって、上空や雷雲から、地表に電流が流れる場合だけでなく、地表から、上空や雷雲に電流が流れる場合についても、雷を遮蔽することが可能となり、便宜である。また、金属製のネットをナセルに被せる構成としたため、取り付けや取り外しが非常に簡単で、便宜である。 In addition, when a thundercloud flows, the charge generated in the cloud also moves with it, so that a potential difference occurs with the opposite charge induced on the ground surface, and induced lightning occurs. In the induced lightning, a current flows from the thundercloud to the ground surface or a current flows from the ground surface to the thundercloud depending on whether a positive charge is generated in the cloud or a negative charge is generated. Therefore, in particular, according to the invention of claim 7, since the outer periphery of the nacelle of the wind power generation facility is covered with a metal net, and according to the invention of claim 8, the outer periphery of the nacelle of the wind power generation facility is formed into a plurality of rods. Because it is configured to cover with a metal net protruding from the conductor, not only when current flows from the sky or thundercloud to the ground surface due to normal lightning or induced lightning, but also when current flows from the ground surface to the sky or thundercloud However, it is possible to shield lightning, which is convenient. In addition, since the metal net is put on the nacelle, it is very easy and convenient to attach and remove.
また特に請求項９の発明によれば、風力発電設備の支柱の上端部からナセルの幅方向に左右に、井桁状又は格子状に組んだ棒状の導体を突き出す構成としたため、通常の落雷や誘導雷によって、地表から、上空や雷雲に電流が流れる場合について、雷を遮蔽することが可能となり、便宜である。 In particular, according to the invention of claim 9, since the bar-shaped conductors assembled in a cross-beam shape or a lattice shape protrude from the upper end of the column of the wind power generation facility to the left and right in the width direction of the nacelle, It is convenient for lightning to be able to shield lightning when current flows from the ground surface to the sky or thunderclouds.
また特に請求項１０の発明によれば、風力発電設備のナセルカバーに設けられている吊り上げ用のフックを利用して複数の略Ｔ字型又は略十字型の導体を立設し、当該複数の略Ｔ字型又は略十字型の導体の上、及びナセルの外周に金属製のネットを被せる構成とすることによって、ネットとナセルの外周との間に距離ができ、より安全に雷を遮蔽することができるだけでなく、ネットの風力発電設備のナセルカバーに接触する部分が少なくなり、ナセルカバーに傷をつけない。さらに、ネットを複数の略Ｔ字型又は略十字型の導体の上、及びナセルの外周に被せる構成としたため、避雷針の保護範囲がナセル全体となり、ナセルカバーに立設する略Ｔ字型又は略十字型の導体の高さを、例えば１ｍ以下にして、あまり高くする必要がなくなる。そのため、仮設用避雷針を設置する作業者の負担が軽減され、作業の安全性も高まる。 In particular, according to the invention of claim 10, a plurality of substantially T-shaped or substantially cross-shaped conductors are erected using a lifting hook provided on a nacelle cover of a wind power generation facility, By adopting a configuration in which a metal net is put on the substantially T-shaped or substantially cross-shaped conductor and on the outer periphery of the nacelle, a distance can be formed between the net and the outer periphery of the nacelle, and lightning can be shielded more safely. In addition, the portion of the net wind power generation facility that touches the nacelle cover is reduced, and the nacelle cover is not damaged. Furthermore, since the net is configured to cover the plurality of substantially T-shaped or substantially cross-shaped conductors and the outer periphery of the nacelle, the protection range of the lightning rod is the entire nacelle, and the substantially T-shaped or approximately The height of the cross-shaped conductor is, for example, 1 m or less, and it is not necessary to make it too high. Therefore, the burden on the worker who installs the temporary lightning rod is reduced, and the safety of the work is also increased.
また特に請求項１２の発明によれば、予め地上でナセルカバーの上面に仮設用の避雷針を設置する構成とすることによって、高所にあるナセルカバーの上で仮設用避雷針を設置するという作業員の負担が軽減され、作業の安全性も高まる。 In particular, according to the invention of claim 12, the temporary lightning rod is installed on the nacelle cover at a high place by setting the temporary lightning rod on the upper surface of the nacelle cover in advance on the ground. This reduces the burden of work and increases work safety.
この発明は、風力によって羽根を回転させ、当該回転力を利用して発電する風力発電設備の施工中に設ける避雷針において、当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フック上に、複数の棒状の導体が立設され、各導体の先端は金属製線で接続され、また各導体は当該導体を流れる電流が地絡するように地面と接続され、前記棒状の導体は、下部が二股に分かれた支持部材から成り、当該支持部材の二股部下端の前後に二つのアングル材を固定して当該アングル材の中央部間に間隙を設け、当該間隙に前記吊り上げ用フックを嵌め入れ、前記各アングル材及び吊り上げ用フックに予め設けられた貫通孔にねじ部材を通してナットで締め付け、ナセルカバーの上面に固定した構成とすることにより、施工期間中の当該風力発電設備への落雷を遮蔽し、当該風力発電設備が雷電流によって破損したり焼損したりすることを回避するものである。 This invention relates to a lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates electric power using the rotational force, and a plurality of lifting hooks provided in the longitudinal direction of the nacelle cover of the wind power generation facility A plurality of rod-shaped conductors are erected on the top, and the ends of the conductors are connected by metal wires, and each conductor is connected to the ground so that a current flowing through the conductor is grounded. The lower part is composed of a bifurcated support member, two angle members are fixed on the front and rear of the lower end of the bifurcated part of the support member to provide a gap between the central parts of the angle member, and the lifting hook is provided in the gap. Insertion, tightening with a nut through a screw member in a through hole provided in advance in each angle member and lifting hook, and fixing to the upper surface of the nacelle cover, construction period Shields of lightning to the wind power installation, in which the wind power installation to avoid or to burn or damage by lightning current.
図１は、仮設用避雷針の設置前の、施工期間中の風力発電設備Ａの構成を示す正面図である。施工期間中の風力発電設備Ａは、一般的な風力発電設備と同様の構成であって、ナセル１とナセル１を支える支柱２とからなる。ナセル１は、ブレード（＝羽根）を保持するロータ軸３、ロータ軸３に直結された増速器４、増速器４によって回転させられ、発電を行う発電機５、ロータ軸３の軸受装置６、発電機５の動作を制御する発電機制御装置７等を有しており、外面はナセルカバー８で覆われている。また、ナセルカバー８と支柱２との間にはスリップリング９が設けられている。なお、この風力発電設備Ａは施工中であり、ブレードは取り付けられていない。またナセルカバー８の上面には、複数の吊り上げ用のフック１０が設けられており、図２に示すこのフック１０の貫通孔１１を使用して、クレーン(図示省略)で地面から上空にナセルカバー８を持ち上げて、ナセル１に被せる。さらに、ナセルカバー８の上面の後端部には、風量計(図示省略)が設けられており、当該風量計を避雷させるための避雷針１２が設けられている。 FIG. 1 is a front view showing the configuration of the wind power generation facility A during the construction period before the temporary lightning rod is installed. The wind power generation facility A during the construction period has the same configuration as a general wind power generation facility, and includes a nacelle 1 and a column 2 that supports the nacelle 1. The nacelle 1 includes a rotor shaft 3 that holds blades (= blades), a speed increaser 4 that is directly connected to the rotor shaft 3, a generator 5 that is rotated by the speed increaser 4, and generates power, and a bearing device for the rotor shaft 3 6. A generator control device 7 for controlling the operation of the generator 5 is provided, and the outer surface is covered with a nacelle cover 8. A slip ring 9 is provided between the nacelle cover 8 and the support column 2. In addition, this wind power generation equipment A is under construction, and the blade is not attached. Further, a plurality of lifting hooks 10 are provided on the upper surface of the nacelle cover 8, and the nacelle cover is lifted from the ground by a crane (not shown) using a through hole 11 of the hook 10 shown in FIG. 8 is lifted and put on the nacelle 1. Further, an air flow meter (not shown) is provided at the rear end of the upper surface of the nacelle cover 8, and a lightning rod 12 for lightning the air flow meter is provided.
上記のような状態の風力発電設備Ａに仮設用の避雷針Ｂを設置する。具体的には、図３に示すように、本実施例における仮設用の避雷針Ｂは、棒状の導体からなる支持部材１３をナセルカバー８の上面に設置されているフック１０を利用して立設し、またロータ軸３の外周に設けられている既設のねじ孔を利用して棒状の導体からなる支持部材１３’を設置する。そして各支持部材１３及び１３’の先端を金属製線１４で接続して設置する。このような構成とするのは，送電線最上部の架空地線が落雷から遮蔽する役割を果たすのと同様の効果を、金属製線１４で得るためである。そして、落雷によって仮設用の避雷針Ｂに流れた雷電流が地絡されるように、各支持部材１３及び１３’と、地面とを地絡線２０で接続する。なお、ブレード(図示省略)用等に、既に風力発電設備Ａに地絡線が設けられている場合には、ナセル１内に設けられた地絡線の端子に、前記支持部材１３及び１３’から導出した地絡線２０を接続する。また図３に示すように、ナセルカバー８上面の後端部については、既に立設されている避雷針１２に金属製線１４を結びつけても良い。更に、風力発電設備Ａを設ける地域が雪の多い地域である場合、遠赤外線を利用する融雪塗料を塗布した金属製線１４を用いれば、金属製線１４に日が当たると、遠赤外線が出るため、金属製線１４に雪がつかない。また、金属製線１４に例えば、送電線に取り付けられている積雪回避用の難着敷設リング(図示省略)を取り付けておけば、雪が金属製線１４上に積っても、雪が成長する段階において回転するため、積った雪を自然に落とすことができる。そのため、雪の重みによって金属製線１４にたるみが出たり、破断したりすることを防止できる。 The lightning rod B for temporary installation is installed in the wind power generation facility A in the above state. Specifically, as shown in FIG. 3, the temporary lightning rod B in the present embodiment is erected by using a hook 10 provided on the upper surface of the nacelle cover 8 with a support member 13 made of a rod-shaped conductor. In addition, a support member 13 ′ made of a rod-shaped conductor is installed using an existing screw hole provided on the outer periphery of the rotor shaft 3. Then, the tips of the support members 13 and 13 ′ are installed by connecting them with a metal wire 14. The reason for this configuration is that the metal wire 14 can obtain the same effect that the overhead ground wire at the top of the transmission line plays a role of shielding lightning. Then, the support members 13 and 13 ′ are connected to the ground by the ground wire 20 so that the lightning current that has flowed to the temporary lightning rod B due to the lightning strike is grounded. When a ground fault is already provided in the wind power generation facility A for blades (not shown) or the like, the support members 13 and 13 ′ are connected to the terminal of the ground fault provided in the nacelle 1. The ground wire 20 derived from the above is connected. As shown in FIG. 3, the metal wire 14 may be tied to the lightning rod 12 that is already erected at the rear end of the upper surface of the nacelle cover 8. Further, when the area where the wind power generation facility A is provided is a snowy area, if the metal wire 14 coated with a snow melting paint using far infrared rays is used, the far infrared rays are emitted when the metal wire 14 is exposed to the sun. For this reason, the metal wire 14 is not covered with snow. Further, for example, if a hard laying ring for snow accumulation (not shown) attached to the power transmission line is attached to the metal wire 14, the stage where the snow grows even if the snow is piled on the metal wire 14 Because it rotates at, it is possible to drop the accumulated snow naturally. Therefore, it is possible to prevent the metal wire 14 from sagging or breaking due to the weight of snow.
次に支持部材１３をナセルカバー８の上面に設置されているフック１０を利用して立設する施工方法について、図４及び図５を用いて具体的に説明する。図４の(A)図及び(Ｂ)図に示すように、支持部材１３は、二股に分かれており、下部に支持補助材１３aの上端が固定され、当該箇所から斜めに支持補助材１３aが垂れており、これらの支持部材１３の下端及び支持補助材１３aの下端の前後両側に二つのアングル材１５が固定され、このアングル材１５とアングル材１５との間の中央部は間隙１５aを有している。またこれらの二つのアングル材１５の中央部には貫通孔１６が夫々設けられている。そして、図５の(Ａ)図及び(Ｂ)図に示すように、前記フック１０を前記二つのアングル材１５の間の間隙１５aに嵌め入れ、フック１０の貫通孔１１と二つのアングル材１５の貫通孔１６とが合わさるようにアングル材１５を配置して、ねじ部材１７をこれらの貫通孔１１及び貫通孔１６に通して他端をナット１７aで締め付け、ねじ部材１７でアングル材１５とフック１０を一緒に螺着する。なお、図５の(Ａ)図に示すようにフック１０上に立設させた支持部材１３のアングル材１５の両端下面にスペーサー１８を設け、ナセルカバー８の上面とアングル材１５の下面との隙間にスペーサー１８を挟みながら、ねじ部材１７でアングル材１５とフック１０を一緒に螺着すれば、立設された支持部材１３に、がたつきが少なくなり、風圧荷重に対する強度も増す。また、ナセルカバー８の前端部については、図６に示すように、ロータ軸３の外周に設けられている既設のねじ孔を利用して支持部材１３’を当該箇所に当接させ、その上からねじ部材１９を螺着して、当該支持部材１３’の下部をナセル１の前面に固定する。 Next, a construction method in which the support member 13 is erected by using the hook 10 installed on the upper surface of the nacelle cover 8 will be specifically described with reference to FIGS. 4 and 5. As shown in FIGS. 4A and 4B, the support member 13 is divided into two parts, the upper end of the support auxiliary material 13a is fixed to the lower part, and the support auxiliary material 13a is inclined obliquely from the location. The two angle members 15 are fixed to both the front and rear sides of the lower end of the support member 13 and the lower end of the support auxiliary member 13a, and the central portion between the angle member 15 and the angle member 15 has a gap 15a. doing. Further, through holes 16 are respectively provided in the central portions of these two angle members 15. Then, as shown in FIGS. 5A and 5B, the hook 10 is fitted into the gap 15a between the two angle members 15, and the through hole 11 of the hook 10 and the two angle members 15 are inserted. The angle member 15 is arranged so as to be aligned with the through hole 16, the screw member 17 is passed through the through hole 11 and the through hole 16, and the other end is tightened with a nut 17 a, and the angle member 15 is hooked with the screw member 17. Screw 10 together. As shown in FIG. 5A, spacers 18 are provided on the lower surfaces of both ends of the angle member 15 of the support member 13 erected on the hook 10, and the upper surface of the nacelle cover 8 and the lower surface of the angle member 15 are provided. If the angle member 15 and the hook 10 are screwed together with the screw member 17 while the spacer 18 is sandwiched between the gaps, the standing support member 13 is less rattling and the strength against wind pressure load is also increased. Further, as shown in FIG. 6, the front end portion of the nacelle cover 8 is brought into contact with the support member 13 ′ using the existing screw holes provided on the outer periphery of the rotor shaft 3, Then, the screw member 19 is screwed to fix the lower part of the support member 13 ′ to the front surface of the nacelle 1.
なお、本実施例では、ロータ軸３の外周に設けられている既設のねじ孔を利用して支持部材１３’をナセル１の前面に固定する構成を示したが、図７及び図８に示すように、ロータ軸３の外周付近のナセルカバー８の内側から外側に、支持部材２９を突き出させて固定する構成としても良い。この支持部材２９は、棒状の導体で構成されている。又は、軽量化のため、グラスファイバー製等の樹脂製素材から構成されていても良い。その場合には、図７に示すように、銅線、アルミ線等の金属製線３０を支持部材２９に巻きつけ、支持部材２９に導電性を持たせ、金属製線３０の一端を地絡線２０に接続する。また支持部材２９は伸縮自在、あるいは部材を継ぎ足すことによって、長さを変えることのできる構成であることが望ましい。このように支持部材２９をナセルカバー８の内側から外側に突き出させて固定する構成とすることによって、作業員は、ナセルカバー８の内側で作業を行うことによって、支持部材２９をナセルカバー８の内側から外側に突き出させて固定することができ、作業員の作業負担が軽減され、作業の安全性が高まる。 In the present embodiment, the configuration in which the support member 13 ′ is fixed to the front surface of the nacelle 1 using the existing screw holes provided on the outer periphery of the rotor shaft 3 is shown in FIGS. 7 and 8. As described above, the support member 29 may be protruded and fixed from the inner side to the outer side of the nacelle cover 8 near the outer periphery of the rotor shaft 3. The support member 29 is composed of a rod-shaped conductor. Alternatively, for weight reduction, it may be made of a resin material such as glass fiber. In that case, as shown in FIG. 7, a metal wire 30 such as a copper wire or an aluminum wire is wound around a support member 29, the support member 29 is made conductive, and one end of the metal wire 30 is grounded. Connect to line 20. Further, it is desirable that the supporting member 29 is configured to be extendable or changeable in length by adding members. In this way, by supporting the support member 29 so as to protrude from the inside of the nacelle cover 8 to the outside, the worker performs the work inside the nacelle cover 8 so that the support member 29 is attached to the nacelle cover 8. It can be fixed by protruding from the inside to the outside, reducing the work burden on the worker and increasing the safety of the work.
また、ナセルカバー８が風力発電設備Ａに設置された状態で、作業員がナセルカバー８の上面に設けられた複数の各ハッチ(図示省略)から顔を出して、あるいはナセルカバー８の上面に立って、仮設用の避雷針Ｂを設置する。この場合、予め地上でナセルカバー８の上面に仮設用の避雷針Ｂを設置しても良い。その場合には、図９に示すように、フック１０とアングル材１５と共に、Ｕクレビス２８をねじ部材１７で一緒に螺着し、ナセルカバー８をクレーンで吊り上げる際には、ナセルカバー８に仮設用の避雷針Ｂを取り付けた状態のまま、このＵクレビス２８にクレーンのフックを引っ掛けて吊り上げ、ナセル１に被せることもできる。 In addition, in a state where the nacelle cover 8 is installed in the wind power generation facility A, an operator looks out from a plurality of hatches (not shown) provided on the upper surface of the nacelle cover 8 or on the upper surface of the nacelle cover 8. Stand and install a lightning rod B for temporary installation. In this case, a temporary lightning rod B may be installed on the upper surface of the nacelle cover 8 in advance on the ground. In this case, as shown in FIG. 9, when the U clevis 28 is screwed together with the screw member 17 together with the hook 10 and the angle member 15, and the nacelle cover 8 is lifted by a crane, the nacelle cover 8 is temporarily installed. With the lightning rod B attached, the hook of the crane can be hooked on the U clevis 28 and lifted to cover the nacelle 1.
このように、風力発電設備Ａに仮設用の避雷針Ｂを設置する構成とすることによって、施工期間中の当該風力発電設備への落雷を遮蔽する。従って、当該風力発電設備Ａが雷電流によって破損したり焼損したりすることを回避することができる。また、仮設用避雷針Ｂは、主として支持部材１３と金属製線１４により成る簡単な構成であるため、設置作業が容易である。さらに、予め地上でナセルカバー８の上面に仮設用の避雷針Ｂを設置しておけば、高所にあるナセルカバー８の上で仮設用避雷針Ｂを設置するという作業員の作業負担が軽減され、作業の安全性が高まる。 Thus, by setting it as the structure which installs the temporary lightning rod B for the wind power generation equipment A, the lightning strike to the said wind power generation equipment during the construction period is shielded. Therefore, it is possible to avoid the wind power generation facility A from being damaged or burnt out by lightning current. Further, the temporary lightning rod B has a simple configuration mainly composed of the support member 13 and the metal wire 14, and therefore, the installation work is easy. Furthermore, if the temporary lightning rod B is installed on the upper surface of the nacelle cover 8 on the ground in advance, the work burden on the worker of installing the temporary lightning rod B on the nacelle cover 8 at a high place is reduced. Work safety is increased.
図１０は、風力発電設備Ａに仮設用の避雷針Ｃが設置された状態を示す平面図である。本実施例における仮設用の避雷針Ｃは、図１１に示すようにナセル１の幅方向に左右に突き出した横棒２１を有した略Ｔ字型の導体からなる支持部材２２及び２２’をナセルカバー８の上面に設置されているフック１０及びロータ軸３の外周のねじ孔を利用して立設し、各支持部材２２及び２２’の横棒２１の複数の箇所を金属線１４で接続して設置する。そして、落雷によって仮設用の避雷針Ｃに流れた雷電流が地絡されるように、各支持部材２２及び２２’と地面とを地絡線(図示省略)で接続する。なお、ブレード(図示省略)用等に、既に風力発電設備Ａに地絡線が設けられている場合には、ナセル１内に設けられた地絡線の端子に、前記支持部材２２及び２２’から導出した地絡線を接続する。また図１０に示すように、ナセルカバー８上面の後端部については、既に立設されている避雷針１２に金属製線１４を結びつけても良い。さらに、支持部材２２及び支持部材２２’の立設の方法は、実施例１の支持部材１３及び支持部材１３’の立設の方法と同様である。 FIG. 10 is a plan view showing a state where a temporary lightning rod C is installed in the wind power generation facility A. FIG. As shown in FIG. 11, the temporary lightning rod C in the present embodiment covers the support members 22 and 22 'made of a substantially T-shaped conductor having a horizontal bar 21 protruding left and right in the width direction of the nacelle 1. 8 is installed by using the hook 10 installed on the upper surface of the rotor 8 and the screw holes on the outer periphery of the rotor shaft 3, and a plurality of portions of the horizontal bar 21 of each support member 22 and 22 ′ are connected by the metal wire 14. Install. Then, the support members 22 and 22 ′ are connected to the ground with a ground line (not shown) so that a lightning current flowing through the temporary lightning rod C due to a lightning strike is grounded. When a ground fault is already provided in the wind power generation facility A for blades (not shown) or the like, the support members 22 and 22 ′ are connected to the ground fault terminal provided in the nacelle 1. Connect the ground line derived from. As shown in FIG. 10, the metal wire 14 may be tied to the lightning rod 12 that is already erected at the rear end of the upper surface of the nacelle cover 8. Further, the method for erecting the support member 22 and the support member 22 'is the same as the method for erecting the support member 13 and the support member 13' of the first embodiment.
なお、本実施例においては、仮設用の避雷針Ｃは、略Ｔ字型の導体からなる支持部材２２及び２２’を用いる構成を示したが、これに限定されるものではなく、横棒が支持部材の中心部に配置されている、略十字型の支持部材(図示省略)を用いる構成でも良い。この略十字型の支持部材は、略十字型に成型されているものを用いても良いし、棒状の支持部材に針金等で横棒を固定しても良い。 In the present embodiment, the temporary lightning rod C is configured to use the support members 22 and 22 'made of a substantially T-shaped conductor. However, the present invention is not limited to this, and a horizontal bar is supported. A configuration using a substantially cross-shaped support member (not shown) disposed at the center of the member may be used. As the substantially cross-shaped support member, a substantially cross-shaped support member may be used, or the horizontal bar may be fixed to the rod-shaped support member with a wire or the like.
このように、風力発電設備Ａに仮設用の避雷針Ｃを設置する構成とすることによって、避雷針の保護範囲が広がって、落雷に対する風力発電設備への遮蔽性が向上し、安全性も高まり、便宜である。 In this way, by adopting a configuration in which the lightning rod C for temporary installation is installed in the wind power generation facility A, the protection range of the lightning rod is expanded, the shielding property to the wind power generation facility against lightning strikes is improved, safety is increased, and convenience. It is.
なお、仮設用の避雷針Ｃの上記以外の構成及び作用は、実施例１の仮設用の避雷針Ｂと同様である。 The other construction and operation of the temporary lightning rod C are the same as those of the temporary lightning rod B of the first embodiment.
図１２は、風力発電設備Ａに仮設用の避雷針Ｄが設置された状態を示す正面図である。本実施例における仮設用の避雷針Ｄは、風力発電設備Ａのナセル１の外周を金属製のネット２３で覆って設置する。そして、落雷によって仮設用の避雷針Ｄに流れた雷電流が地絡されるように、金属製のネット２３と地面とを地絡線２０で接続する。なお、ブレード(図示省略)用等に、既に風力発電設備Ａに地絡線が設けられている場合には、ナセル１内に設けられた地絡線の端子に、前記金属製のネット２３から導出した地絡線２０を接続する。 FIG. 12 is a front view showing a state in which a lightning rod D for temporary installation is installed in the wind power generation facility A. The temporary lightning rod D in the present embodiment is installed by covering the outer periphery of the nacelle 1 of the wind power generation facility A with a metal net 23. And the metal net | network 23 and the ground are connected by the ground fault line 20 so that the lightning current which flowed to the temporary lightning rod D for lightning may be grounded. When a ground fault is already provided in the wind power generation facility A for blades (not shown) or the like, the metal net 23 is connected to the terminal of the ground fault provided in the nacelle 1. The derived ground fault wire 20 is connected.
このように、風力発電設備Ａに仮設用の避雷針Ｄを設置する構成とすることによって、通常の落雷や誘導雷によって、上空や雷雲から、地表に電流が流れる場合だけでなく、地表から、上空や雷雲に電流が流れる場合についても、遮蔽させることが可能となり、安全性が向上する。また、金属製のネット２３をナセル１に被せる構成としたため、取り付けや取り外しが非常に簡単で、便宜である。 In this way, by installing the temporary lightning rod D in the wind power generation facility A, not only when current flows from the sky or thundercloud to the ground surface due to normal lightning strikes or induced lightning, but also from the ground surface Even when a current flows through a thundercloud or a thundercloud, it can be shielded, and safety is improved. Moreover, since it was set as the structure which covers the metal net | network 23 on the nacelle 1, attachment and removal are very easy and convenient.
また、金属製のネット２３は、外側面から複数の棒状の導体(図示省略)が突き出している構成としても良い。このような構成とすれば、仮設用の避雷針Ｄによる遮蔽効果が向上する。なお、仮設用の避雷針Ｄの上記以外の構成及び作用は、実施例１の仮設用の避雷針Ｂと同様である。 Further, the metal net 23 may be configured such that a plurality of rod-shaped conductors (not shown) protrude from the outer surface. With such a configuration, the shielding effect by the temporary lightning rod D is improved. The other construction and operation of the temporary lightning rod D are the same as those of the temporary lightning rod B of the first embodiment.
図１３は、風力発電設備Ａに仮設用の避雷針Ｅが設置された状態を示す正面図である。本実施例における仮設用の避雷針Ｅは、風力発電設備Ａの支柱２の上端部からナセル１の幅方向及び前後方向に、格子状に組んだ棒状の導体２４を張り出させて設置する。そして、落雷によって仮設用の避雷針Ｅに流れた雷電流が地絡されるように、格子状に組んだ棒状の導体２４と地面とを地絡線２０で接続する。なお、ブレード(図示省略)用等に、既に風力発電設備Ａに地絡線が設けられている場合には、ナセル１内に設けられた地絡線の端子に、前記格子状に組んだ棒状の導体２４から導出した地絡線２０を接続する。 FIG. 13 is a front view showing a state where a temporary lightning rod E is installed in the wind power generation facility A. FIG. The lightning rod E for temporary installation in the present embodiment is installed by extending bar-like conductors 24 assembled in a lattice shape from the upper end portion of the column 2 of the wind power generation facility A in the width direction and the front-rear direction of the nacelle 1. Then, the bar-shaped conductors 24 assembled in a lattice shape and the ground are connected by the grounding wire 20 so that the lightning current flowing through the temporary lightning rod E due to the lightning strike is grounded. In addition, when the ground fault wire is already provided in the wind power generation equipment A for blades (not shown) or the like, the rod-like shape assembled in the lattice shape on the ground fault terminal provided in the nacelle 1 The ground line 20 derived from the conductor 24 is connected.
このように、風力発電設備Ａに仮設用の避雷針Ｅを設置する構成とすることによって、通常の落雷や誘導雷によって、地表から、上空や雷雲に電流が流れる場合について、遮蔽効果を向上させることが可能となり、便宜である。なお、仮設用の避雷針Ｅの上記以外の構成及び作用は、実施例１の仮設用の避雷針Ｂと同様である。 Thus, by adopting a configuration in which the temporary lightning rod E is installed in the wind power generation facility A, the shielding effect is improved when a current flows from the ground surface to the sky or a thundercloud by a normal lightning strike or induced lightning. Is possible and convenient. The configuration and operation of the temporary lightning rod E other than those described above are the same as those of the temporary lightning rod B of the first embodiment.
図１４は、風力発電設備Ａに仮設用の避雷針Ｆが設置された状態を示す正面図である。本実施例における仮設用の避雷針Ｆは、ナセル１の幅方向に左右に突き出した横棒２５を有する、略Ｔ字型の複数の導体からなる支持部材２６及び２６’を、ナセルカバー８の上面に複数設けられたフック１０及びロータ軸３の外周のねじ孔を利用して立設し、支持部材２６及び２６’の上、及びナセル１の外周に金属製のネット２７を被せて設置する。そして、落雷によって仮設用の避雷針Ｆに流れた雷電流が地絡されるように、支持部材２６及び２６’と地面とを地絡線２０で接続する。なお、ブレード(図示省略)用等に、既に風力発電設備Ａに地絡線が設けられている場合には、ナセル１内に設けられた地絡線の端子に、前記支持部材２６及び２６’から導出した地絡線２０を接続する。また、支持部材２６及び支持部材２６’の立設の方法は、実施例１の支持部材１３及び支持部材１３’の立設の方法と同様である。なお、本実施例における避雷針Ｆの略Ｔ字型の支持部材２６及び２６’の形状は、実施例２と同様，略十字型でも良い。 FIG. 14 is a front view showing a state where a temporary lightning rod F is installed in the wind power generation facility A. FIG. The lightning rod F for temporary use in the present embodiment includes support members 26 and 26 ′ having a plurality of substantially T-shaped conductors having horizontal bars 25 protruding left and right in the width direction of the nacelle 1. A plurality of hooks 10 and a screw hole on the outer periphery of the rotor shaft 3 are installed upright, and a metal net 27 is placed on the support members 26 and 26 ′ and on the outer periphery of the nacelle 1. Then, the support members 26 and 26 ′ and the ground are connected by the ground fault line 20 so that the lightning current that has flowed to the temporary lightning rod F due to lightning strike is grounded. When a ground fault is already provided in the wind power generation facility A for blades (not shown) or the like, the support members 26 and 26 ′ are connected to the ground fault terminal provided in the nacelle 1. The ground wire 20 derived from the above is connected. Further, the method of erecting the support member 26 and the support member 26 'is the same as the method of erecting the support member 13 and the support member 13' of the first embodiment. In addition, the shape of the substantially T-shaped support members 26 and 26 ′ of the lightning rod F in this embodiment may be a substantially cross shape as in the second embodiment.
このように、風力発電設備Ａに仮設用の避雷針Ｆを設置する構成とすることによって、金属製のネット２７とナセル１の外周との間に距離ができ、より雷電流に対する遮蔽効果を向上させることができるだけでなく、金属製のネット２７が風力発電設備Ａのナセルカバー８に接触する部分が少なくなり、ナセルカバー８に傷をつけない。さらに、金属製のネット２７をナセル１の外周に被せる構成としたため、避雷針の保護範囲がナセル全体となり、ナセルカバー８に立設させる略Ｔ字型の支持部材２６及び２６’の高さを、例えば１ｍ以下にして、あまり高くする必要がなくなる。そのため、仮設用の避雷針を設置する作業者の負担が軽減され、作業の安全性も高まる。なお、仮設用の避雷針Ｆの上記以外の構成及び作用は、実施例１の仮設用の避雷針Ｂ、実施例２の仮設用の避雷針Ｃ、実施例３の仮設用の避雷針Ｄと同様である。 Thus, by setting it as the structure which installs the temporary lightning rod F for the wind power generation equipment A, distance can be made between the metal net | network 27 and the outer periphery of the nacelle 1, and the shielding effect with respect to a lightning current is improved more. In addition, the portion of the metal net 27 that contacts the nacelle cover 8 of the wind power generation facility A is reduced, and the nacelle cover 8 is not damaged. Furthermore, since the metal net 27 is configured to cover the outer periphery of the nacelle 1, the protection range of the lightning rod is the entire nacelle, and the height of the substantially T-shaped support members 26 and 26 ′ standing on the nacelle cover 8 is For example, it is not necessary to make it 1 m or less and make it too high. Therefore, the burden on the worker who installs the temporary lightning rod is reduced, and the safety of the work is also increased. The construction and operation of the temporary lightning rod F other than those described above are the same as those of the temporary lightning rod B of Example 1, the temporary lightning rod C of Example 2, and the temporary lightning rod D of Example 3.
なお本明細書において、支持部材１３及び１３’、支持部材２２及び２２’、支持部材２６及び２６’は導体であると述べたが、これは支持部材の素材自体が導体である場合だけでなく、支持部材の素材はグラスファイバー等の樹脂であって、導体ではないが、支持部材の外周に金属製線等を巻き付けて、支持部材に導電性を持たせるように構成した場合も含まれる概念である。 In the present specification, the support members 13 and 13 ′, the support members 22 and 22 ′, and the support members 26 and 26 ′ are described as conductors. However, this is not only the case where the material of the support member itself is a conductor. The material of the support member is a resin such as glass fiber and is not a conductor, but includes a case in which a metal wire or the like is wound around the outer periphery of the support member to make the support member conductive. It is.
Ａ：風力発電設備、Ｂ：仮設用の避雷針、Ｃ：仮設用の避雷針、Ｄ：仮設用の避雷針、Ｅ：仮設用の避雷針、Ｆ：仮設用の避雷針
１：ナセル、２：支柱、３：ロータ軸、４：増速器、５：発電機、６：軸受装置、７：発電機制御装置、８：ナセルカバー、９：スリップリング、１０：フック、１１：貫通孔、１２：避雷針、１３：支持部材、１３’：支持部材、１３a：支持補助材、１４：金属製線、１５：アングル材、１６：貫通孔、１７：ねじ部材、１７a：ナット、１８：スペーサー、１９：ねじ部材、２０：地絡線、２１：横棒、２２：支持部材、２２’：支持部材、２３：金属製のネット、２４：格子状に組んだ棒状の導体、２５：横棒、２６：支持部材、２６’：支持部材、２７：金属製のネット、２８：Ｕクレビス、２９：支持部材、３０：金属製線
A: Wind power generation equipment, B: Temporary lightning rod, C: Temporary lightning rod, D: Temporary lightning rod, E: Temporary lightning rod, F: Temporary lightning rod 1: Nacelle, 2: Strut, 3: Rotor shaft, 4: speed increaser, 5: generator, 6: bearing device, 7: generator control device, 8: nacelle cover, 9: slip ring, 10: hook, 11: through hole, 12: lightning rod, 13 : Support member, 13 ': support member, 13a: support auxiliary material, 14: metal wire, 15: angle material, 16: through hole, 17: screw member, 17a: nut, 18: spacer, 19: screw member, 20: ground fault wire, 21: horizontal bar, 22: support member, 22 ': support member, 23: metal net, 24: bar-shaped conductor assembled in a lattice, 25: horizontal bar, 26: support member, 26 ': support member, 27: metal net, 28: U clevis, 29: support member 30: metal wire
Claims (12)
当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フック上に、複数の棒状の導体が立設され、各導体の先端部は金属製線で接続され、
また各導体は当該導体を流れる電流が地絡するように地面と接続され、
前記導体は、下部が二股に分かれた支持部材から成り、当該支持部材の二股部下端の前後に二つのアングル材を固定して当該アングル材の中央部間に間隙を設け、当該間隙に前記吊り上げ用フックを嵌め入れ、前記各アングル材及び吊り上げ用フックに予め設けられた貫通孔にねじ部材を通してナットで締め付け、ナセルカバーの上面に固定したことを特徴とする、仮設用避雷針。 In a lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
On the lifting hook provided in the longitudinal direction of the nacelle cover of the wind power generation facility, a plurality of rod-shaped conductors are erected, and the tips of the conductors are connected by metal wires,
Each conductor is connected to the ground so that the current flowing through the conductor is grounded,
The conductor is composed of a support member whose lower part is divided into two parts, and two angle members are fixed to the front and rear of the lower end of the fork part of the support member to provide a gap between the central parts of the angle member, and the lifting is performed in the gap. A temporary lightning rod characterized by being fitted with a hook for use, tightened with a nut through a screw member in a through-hole provided in advance in each angle member and lifting hook, and fixed to the upper surface of the nacelle cover.
当該風力発電設備のナセルの外周が金属製のネットで覆われ、当該ネットは当該ネットを流れる電流が地絡するように地面と接続されていることを特徴とする、仮設用避雷針。 In a lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
A temporary lightning rod, wherein an outer periphery of a nacelle of the wind power generation facility is covered with a metal net, and the net is connected to the ground so that a current flowing through the net is grounded.
当該風力発電設備の支柱の上端部からナセルの幅方向に左右に、井桁状又は格子状に組んだ棒状の導体が突き出されており、
当該導体は当該導体を流れる電流が地絡するように地面と接続されていることを特徴とする、仮設用避雷針。 In a lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
From the upper end of the column of the wind power generation facility, bar-shaped conductors that are assembled in the form of a grid or a lattice protrude from the left and right in the width direction of the nacelle,
A temporary lightning rod, wherein the conductor is connected to the ground so that a current flowing through the conductor is grounded.
当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フック上に、複数の棒状の導体が立設され、
当該導体は、ナセルの幅方向に左右に突き出した横棒を有した略Ｔ字型又は略十字型であり、
ナセル上の長手方向に立設された複数の導体の上、及びナセル外周に金属製のネットが被せられ、
また前記各導体は当該導体を流れる電流が地絡するように地面と接続されており、
前記導体は、下部が二股に分かれた支持部材から成り、当該支持部材の二股部下端の前後に二つのアングル材を固定して当該アングル材の中央部間に間隙を設け、当該間隙に前記吊り上げ用フックを嵌め入れ、前記各アングル材及び吊り上げ用フックに予め設けられた貫通孔にねじ部材を通してナットで締め付け、ナセルカバーの上面に固定したことを特徴とする、仮設用避雷針。 In a lightning rod provided during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
A plurality of rod-shaped conductors are erected on the lifting hooks provided in the longitudinal direction of the nacelle cover of the wind power generation facility,
The conductor is substantially T-shaped or substantially cross-shaped with horizontal bars protruding left and right in the width direction of the nacelle,
A metal net is put on the plurality of conductors erected in the longitudinal direction on the nacelle and on the outer periphery of the nacelle,
Each of the conductors is connected to the ground so that a current flowing through the conductor is grounded.
The conductor is composed of a support member whose lower part is divided into two parts, and two angle members are fixed to the front and rear of the lower end of the fork part of the support member to provide a gap between the central parts of the angle member, and the lifting is performed in the gap. A temporary lightning rod characterized by being fitted with a hook for use, tightened with a nut through a screw member in a through-hole provided in advance in each angle member and lifting hook, and fixed to the upper surface of the nacelle cover.
棒状の導体を当該風力発電設備のナセルカバーの長手方向に複数設けられている吊り上げ用フックに夫々立設するステップと、
当該各棒状の導体の先端又は横棒を金属製線で接続するステップと、
当該各棒状の導体を、当該導体を流れる電流が地絡するように地面と接続するステップを有することを特徴とする、請求項１又は５に記載の仮設用避雷針の施工方法。 It is a construction method in which a lightning rod for temporary installation is installed during construction of a wind power generation facility that rotates blades by wind power and generates power using the rotational force,
A step of standing a plurality of rod-shaped conductors on lifting hooks provided in the longitudinal direction of the nacelle cover of the wind power generation facility;
Connecting the tip or horizontal bar of each bar-shaped conductor with a metal wire;
The temporary lightning rod construction method according to claim 1, further comprising a step of connecting the rod-shaped conductors to the ground so that a current flowing through the conductors is grounded.
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| US4842221A (en) * | 1988-04-21 | 1989-06-27 | Westinghouse Electric Corp. | Lightning hardened tether cable and an aerostat tethered to a mooring system therewith |
| JP2598633B2 (en) * | 1993-12-27 | 1997-04-09 | 株式会社日立製作所 | Reactor building and its grounding method |
| JPH08158421A (en) * | 1994-12-01 | 1996-06-18 | Fujita Corp | Preceding installation method for roof water tank facility |
| JP3243509B2 (en) * | 1999-10-22 | 2002-01-07 | 川崎重工業株式会社 | Wind power generator |
| JP4115323B2 (en) * | 2003-04-04 | 2008-07-09 | 新日鉄エンジニアリング株式会社 | Wind power generator construction method and construction equipment |
| DK200501312A (en) * | 2005-09-21 | 2007-03-22 | Lm Glasfiber As | Wing fasteners |
| WO2008006377A1 (en) * | 2006-07-14 | 2008-01-17 | Vestas Wind Systems A/S | Wind turbine comprising enclosure structure formed as a faraday cage |
| DK2471153T4 (en) * | 2009-08-24 | 2018-07-23 | Siemens Ag | lightning protection |
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