JP2019210810A - Hanger jig for ocean wind power generator tower - Google Patents

Hanger jig for ocean wind power generator tower Download PDF

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JP2019210810A
JP2019210810A JP2018104426A JP2018104426A JP2019210810A JP 2019210810 A JP2019210810 A JP 2019210810A JP 2018104426 A JP2018104426 A JP 2018104426A JP 2018104426 A JP2018104426 A JP 2018104426A JP 2019210810 A JP2019210810 A JP 2019210810A
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wind power
tower
power generator
offshore wind
jig
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育男 飛永
Ikuo Tobinaga
育男 飛永
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Hitachi Ltd
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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
    • 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
    • Y02E10/727—Offshore wind turbines

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Abstract

To provide a hanger jig having a sufficient strength for collectively mounting a temporarily-assembled ocean wind power generator tower as it is on an SEP ship, not requiring removal of a jig or the like when constructing an ocean wind power generator, capable of shortening a working time, and not requiring maintenance.SOLUTION: A hanger jig 10 for an ocean wind power generator tower is used when mounting a temporarily-assembled ocean wind power generator tower on a self-elevating working barge. The hanger jig for the ocean wind power generator tower is composed of a weight part 1, a cover part 2 for covering the weight part, and a hanger bracket 3 mounted at the cover part and hung up by a hanging-up device. The hanger jig for the ocean wind power generator tower is characterized in that it has a mass of at least 1/5 of a weight of a nacelle installed at a top part of the ocean wind power generator tower to cover the entire surface of the top part of the ocean wind power generator tower.SELECTED DRAWING: Figure 1

Description

本発明は洋上風力発電装置用タワーの吊り冶具に係り、特に、洋上風力発電装置を建設する際に、仮組立した洋上風力発電装置用タワーを自己昇降式作業台船（以下、ＳＥＰ（Ｓｅｌｆ Ｅｌｅｖａｔｉｎｇ Ｐｌａｔｆｏｒｍ）船という）に搭載する時に用いられるものに好適な洋上風力発電装置用タワーの吊り冶具に関する。   The present invention relates to a suspension jig for an offshore wind power generator tower, and in particular, when an offshore wind power generator is constructed, the temporarily assembled offshore wind power generator tower is moved to a self-elevating work platform (hereinafter referred to as SEP (Self Elevating). The present invention relates to a suspension jig for a tower for offshore wind power generators suitable for use on a platform).

一般に、洋上は、陸上に比べて風速が強く、しかも、良好で安定した風が吹くという特徴があり、加えて、洋上には障害物が少なく、騒音、電波障害もない。また、経済的理由から大型化しつつある風車の機材を運搬設置する施工コストも陸上より洋上の方が少ないし、更に、大規模な電力消費地帯は沿岸区域に集中しており、その他の電力系設備も沿岸部の方が整備されている傾向にある。   In general, the ocean is characterized by a higher wind speed than the land, and a good and stable wind blows. In addition, there are few obstacles on the ocean, and there is no noise or radio interference. Also, the construction cost of transporting and installing wind turbine equipment that is becoming larger for economic reasons is lower on the ocean than on land, and large-scale power consumption areas are concentrated in coastal areas. There is a tendency that the coastal area is also equipped with facilities.

このように、洋上は陸上よりも風力発電に有利な条件を備えており、近年、洋上風力発電装置が多く採用されるようになっている。   As described above, the offshore has more favorable conditions for wind power generation than onshore, and in recent years, many offshore wind power generation apparatuses have been adopted.

ところで、洋上風力発電装置を構成する部品の一つに、風力発電用の風車の支柱である風力発電装置用タワーがある。   Incidentally, one of the components constituting the offshore wind power generator is a wind power generator tower which is a column of a wind turbine for wind power generation.

この風力発電装置用タワーは、その頂上部に水平軸に支持された複数枚のブレードを備え、風車の回転により発電する発電機、風車の指向方向を風上に合わせる回転機構等の重量物となるナセルが設置されている。   This tower for wind power generators has a plurality of blades supported on a horizontal shaft at the top, a generator that generates power by rotation of the windmill, a heavy object such as a rotation mechanism that adjusts the direction of the windmill to the windward, and the like. The nacelle is installed.

このような風力発電装置用タワーは、洋上風力発電装置を建設する際には、洋上での組立作業時間を最小化するために、風力発電装置の設置海域近傍の港で事前に仮組立が行われ、仮組立した風力発電装置用タワーを吊り冶具を用いてクレーン等の吊り上げ装置でＳＥＰ船に搭載する必要がある。   When constructing an offshore wind power generator, such a tower for a wind power generator is preliminarily assembled in advance at a port near the sea area where the wind power generator is installed in order to minimize the assembly work time on the ocean. However, it is necessary to mount the tower for a wind power generator that has been temporarily assembled on a SEP ship using a lifting device such as a crane using a lifting jig.

仮組立した風力発電装置用タワーを吊り冶具を用いてＳＥＰ船に搭載する際には、上述したナセルが風力発電装置用タワー上には搭載されていないので、風力発電装置用タワーの固有振動数が風力発電装置の完成状態よりも上昇し、保管状態でカルマン渦による振動が発生するリスクがある。   When the temporarily assembled wind power generator tower is mounted on a SEP ship using a lifting jig, the above-described nacelle is not mounted on the wind power generator tower. However, there is a risk that vibrations due to Karman vortices will occur when the wind turbine generator is in a stored state.

これの防止策として、ストレイキを風力発電装置用タワーに巻きつけてカルマン渦を防止することや制振ダンパを設けて振動を抑制することが行われている。   To prevent this, a strake is wound around a tower for wind power generators to prevent Karman vortices and a vibration damper is provided to suppress vibration.

一方、仮組立された風力発電装置用タワーは、洋上での組立作業時間を最小化するために、そのまま一括でＳＥＰ船に搭載する必要があり、その時に用いられる吊り冶具には相当の強度が必要になる。また、仮組した風力発電装置用タワーは、保管に備えて雨水が風力発電装置用タワー内に侵入しないように養生をする必要がある。更に、洋上風力発電装置は、洋上に設置する際に必要となるＳＥＰ船のコストが高いため、なるべく短期間に現地組立を完了する必要がある。   On the other hand, in order to minimize the assembly work time on the ocean, the temporarily assembled tower for wind power generators needs to be mounted on the SEP ship as it is, and the suspension jig used at that time has a considerable strength. I need it. Further, the temporarily assembled wind power generator tower needs to be cured so that rainwater does not enter the wind power generator tower in preparation for storage. Furthermore, since the offshore wind power generation apparatus requires a high cost for SEP ships when installed on the ocean, it is necessary to complete on-site assembly in as short a time as possible.

なお、洋上風力発電装置における洋上風力発電装置用タワーを、ＳＥＰ船を用いて運搬する洋上風力発電装置の運搬方法の技術が特許文献１に記載されている。   In addition, the technique of the conveyance method of the offshore wind power generator which transports the tower for offshore wind power generators in an offshore wind power generator using a SEP ship is described in patent document 1. FIG.

特開２０１７−８９４４７号公報JP 2017-89447 A

しかしながら、上述した風力発電装置用タワーの固有振動数が風力発電装置の完成状態よりも上昇するのを防止するために、ストレイキを風力発電装置用タワーに巻きつけてカルマン渦を防止したり、制振ダンパを設けて振動を抑制することでは、洋上風力発電装置の建設時にストレイキや制振ダンパを外す必要があり、洋上風力発電装置の施工に時間が掛かってしまう。   However, in order to prevent the natural frequency of the wind power generator tower described above from rising from the completed state of the wind power generator, a streak is wound around the wind power generator tower to prevent Karman vortices, In order to suppress the vibration by providing the vibration damper, it is necessary to remove the streak and the vibration damping damper when constructing the offshore wind power generator, and it takes time to install the offshore wind power generator.

また、ストレイキを風力発電装置用タワーに巻きつけてカルマン渦を防止することは、雨養生のための設備と、仮組の洋上風力発電装置用タワーを吊るための冶具が別に必要になる。   Further, in order to prevent the Karman vortex by winding the streak around the tower for the wind power generator, a separate equipment for rain curing and a jig for suspending the temporary tower for the offshore wind power generator are required.

更に、制振ダンパを設けて振動を抑制することは、駆動部分があるため、メンテナンスが必要である。   Furthermore, providing a damping damper to suppress vibration requires maintenance because of the drive portion.

本発明は上述の点に鑑みなされたもので、その目的とするところは、仮組立された風力発電装置用タワーを、そのまま一括でＳＥＰ船に搭載するに十分な強度があり、しかも、洋上風力発電装置の建設時に冶具等の取り外しの必要がなく、施工時間の短縮を図ることが可能で、メンテナンスの必要のない洋上風力発電装置用タワーの吊り冶具を提供することにある。   The present invention has been made in view of the above-described points, and an object of the present invention is to provide a sufficient strength for mounting the temporarily assembled towers for wind power generators on the SEP ship as they are. An object of the present invention is to provide a suspension jig for a tower for an offshore wind power generator that does not require removal of a jig or the like at the time of construction of the power generator, can shorten the construction time, and does not require maintenance.

本発明の洋上風力発電装置用タワーの吊り冶具は、上記目的を達成するために、仮組立した洋上風力発電装置用タワーを自己昇降式作業台船に搭載する際に用いられる洋上風力発電装置用タワーの吊り冶具であって、前記洋上風力発電装置用タワーの吊り冶具は、ウェイト部と、該ウェイト部を覆うカバー部と、該カバー部に設置され、吊り上げ装置により吊り上げられる吊りブラケットとから成り、前記洋上風力発電装置用タワーの吊り冶具は、前記洋上風力発電装置用タワーの頂上部に設置されるナセルの重量の１／５以上の質量をもち、かつ、前記洋上風力発電装置用タワーの頂上部の全面を覆っていることを特徴とする。   The tower suspension jig for offshore wind power generators according to the present invention is for offshore wind power generators used when the temporarily assembled offshore wind power generator tower is mounted on a self-lifting work platform ship in order to achieve the above object. A tower lifting jig comprising a weight part, a cover part covering the weight part, and a suspension bracket installed on the cover part and lifted by a lifting device. The suspension jig for the offshore wind power generator tower has a mass of 1/5 or more of the weight of the nacelle installed on the top of the offshore wind power generator tower, and the offshore wind power generator tower It covers the entire top surface.

本発明によれば、仮組立された風力発電装置用タワーを、そのまま一括でＳＥＰ船に搭載するに十分な強度があり、しかも、洋上風力発電装置の建設時にダンパやストレイキ、雨養生等の取り外しの必要がなく、施工時間の短縮を図ることが可能で、メンテナンスの必要がなくなる。   According to the present invention, the temporarily assembled tower for wind power generators is strong enough to be mounted on the SEP ship as it is, and the damper, the streak, the rain curing, etc. are removed when the offshore wind power generator is constructed. It is possible to shorten the construction time and eliminate the need for maintenance.

本発明の洋上風力発電装置用タワーの吊り冶具の実施例１を示す斜視図である。It is a perspective view which shows Example 1 of the hanging jig of the tower for offshore wind power generators of this invention. 本発明の洋上風力発電装置用タワーの吊り冶具の実施例１を示す平面図である。It is a top view which shows Example 1 of the hanging jig of the tower for offshore wind power generators of this invention. 本発明の洋上風力発電装置用タワーの吊り冶具の実施例１を示す断面図である。It is sectional drawing which shows Example 1 of the hanging jig of the tower for offshore wind power generators of this invention. 本発明の洋上風力発電装置用タワーの吊り冶具の実施例１を洋上風力発電装置用タワーに設置した状態を示す斜視図である。It is a perspective view which shows the state which installed Example 1 of the suspension jig of the tower for offshore wind power generators of this invention in the tower for offshore wind power generators. 図４の状態から吊り上げ装置（クレーン等）を用いて洋上風力発電装置用タワーを吊り上げる前の状態を示す斜視図である。It is a perspective view which shows the state before lifting the tower for offshore wind power generators using the lifting apparatus (a crane etc.) from the state of FIG.

以下、図示した実施例に基づいて本発明の洋上風力発電装置用タワーの吊り冶具を説明する。なお、各図において、同一構成部品には同符号を使用する。   Hereinafter, the suspension jig of the tower for offshore wind power generators of this invention is demonstrated based on the illustrated Example. In each figure, the same symbols are used for the same components.

図１、図２及び図３に、本発明の洋上風力発電装置用タワーの吊り冶具の実施例１を示す。   FIG. 1, FIG. 2 and FIG. 3 show Embodiment 1 of a tower lifting jig for an offshore wind power generator according to the present invention.

該図に示すように、本実施例の洋上風力発電装置用タワーの吊り冶具１０は、ウェイト部１と、このウェイト部１を覆うカバー部２と、カバー部２に設置され、クレーン等の吊り上げ装置（図示せず）により吊り上げられる吊りブラケット３とから概略構成されている。   As shown in the figure, a suspension jig 10 for a tower for an offshore wind power generator according to the present embodiment is installed on a weight part 1, a cover part 2 covering the weight part 1, and a cover part 2 to lift a crane or the like. It is comprised roughly from the suspension bracket 3 lifted by the apparatus (not shown).

また、本実施例の洋上風力発電装置用タワーの吊り冶具１０の中央部には、作業員が出入りするマンハッチ４が形成され、このマンハッチ４は開閉自在に構成されている。   In addition, a man hatch 4 through which an operator enters and exits is formed in the central portion of the suspension jig 10 of the tower for the offshore wind power generator of the present embodiment, and the man hatch 4 is configured to be freely opened and closed.

また、上述したカバー部２は円形を成し、吊りブラケット３はカバー部２に等間隔で複数個（本実施例では４個）設置されている。   Moreover, the cover part 2 mentioned above comprises circle | round | yen, and the suspension bracket 3 is installed in the cover part 2 by plural numbers (4 in a present Example) at equal intervals.

そして、本実施例では、洋上風力発電装置用タワーの吊り冶具１０が、洋上風力発電装置用タワー５（図４参照）の頂上部に設置されるナセル（図示せず）の重量の１／５以上の質量をもち、かつ、図４に示すように、洋上風力発電装置用タワー５の頂上部の全面を覆っていることを特徴とする。   In this embodiment, the tower lifting jig 10 for the offshore wind power generator tower is 1/5 of the weight of the nacelle (not shown) installed at the top of the offshore wind power generator tower 5 (see FIG. 4). It has the above mass, and as shown in FIG. 4, it covers the whole top surface of the tower 5 for offshore wind power generators.

上述した如く、仮組立された風力発電装置用タワー５は、そのまま一括でＳＥＰ船に搭載する必要があり、その時に用いられる洋上風力発電装置用タワーの吊り冶具１０には相当の強度が必要になる。   As described above, the temporarily assembled wind power generator tower 5 needs to be mounted on the SEP ship as it is, and the offshore wind power generator tower hanging jig 10 used at that time needs to have considerable strength. Become.

通常、洋上風力発電装置用タワー５の頂上部に設置されるナセルの重量は、数十〜数百トンあるが、経験上、ナセルを吊り上げるための洋上風力発電装置用タワーの吊り冶具１０の質量は、ナセル重量の１／５以上あれば充分である。   Usually, the weight of the nacelle installed at the top of the tower 5 for offshore wind power generation equipment is several tens to several hundred tons. However, from experience, the mass of the lifting jig 10 of the tower for offshore wind power generation equipment for lifting the nacelle is known. Is sufficient if it is 1/5 or more of the nacelle weight.

図５は、図４の状態からクレーン等の吊り上げ装置を用いて洋上風力発電装置用タワー５を吊り上げる前の状態を示し、４個の吊りブラケット３の各々にワイヤロープ６を掛け、この４本のワイヤロープ６を介してクレーン等の吊り上げ装置により、洋上風力発電装置用タワーの吊り冶具１０に固定された洋上風力発電装置用タワー５を吊り上げてＳＥＰ船に搭載するものである。   FIG. 5 shows a state before the tower 5 for offshore wind power generators is lifted from the state of FIG. 4 using a lifting device such as a crane. A wire rope 6 is hung on each of the four suspension brackets 3, and the four The offshore wind power generator tower 5 fixed to the offshore wind power generator tower lifting jig 10 is lifted by a lifting device such as a crane via the wire rope 6 and mounted on the SEP ship.

このような本実施例の構成とすることにより、仮組立された風力発電装置用タワー５を、そのまま一括でＳＥＰ船に搭載するに十分な強度があり、しかも、洋上風力発電装置の建設時に冶具等の取り外しの必要がなく、施工時間の短縮を図ることが可能で、メンテナンスの必要がなくなるという効果がある。   By adopting such a configuration of the present embodiment, the wind turbine generator tower 5 that has been temporarily assembled has sufficient strength to be mounted on the SEP ship as it is, and a jig is used during the construction of the offshore wind turbine generator. It is possible to reduce the construction time and eliminate the need for maintenance.

なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かり易く説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成を置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることが可能である。   In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

１…ウェイト部、２…カバー部、３…吊りブラケット、４…マンハッチ、５…洋上風力発電装置用タワー、６…ワイヤロープ、１０…洋上風力発電装置用タワーの吊り冶具。   DESCRIPTION OF SYMBOLS 1 ... Weight part, 2 ... Cover part, 3 ... Suspension bracket, 4 ... Man hatch, 5 ... Tower for offshore wind power generators, 6 ... Wire rope, 10 ... Hanging jig for towers for offshore wind power generators.

Claims (4)

仮組立した洋上風力発電装置用タワーを自己昇降式作業台船に搭載する際に用いられる洋上風力発電装置用タワーの吊り冶具であって、
前記洋上風力発電装置用タワーの吊り冶具は、ウェイト部と、該ウェイト部を覆うカバー部と、該カバー部に設置され、吊り上げ装置により吊り上げられる吊りブラケットとから成り、
前記洋上風力発電装置用タワーの吊り冶具は、前記洋上風力発電装置用タワーの頂上部に設置されるナセルの重量の１／５以上の質量をもち、かつ、前記洋上風力発電装置用タワーの頂上部の全面を覆っていることを特徴とする洋上風力発電装置用タワーの吊り冶具。 An offshore wind power generator tower hanging jig used when a temporarily assembled offshore wind power generator tower is mounted on a self-lifting work platform ship,
The offshore wind power generator tower suspension jig comprises a weight part, a cover part covering the weight part, and a suspension bracket installed on the cover part and lifted by a lifting device,
The offshore wind power generator tower suspension jig has a mass that is 1/5 or more of the weight of the nacelle installed on the top of the offshore wind power generator tower, and the top of the offshore wind power generator tower. A tower hanging jig for offshore wind power generators characterized by covering the entire surface of the section. 請求項１に記載の洋上風力発電装置用タワーの吊り冶具であって、
前記洋上風力発電装置用タワーの吊り冶具の中央部には、作業員が出入りするマンハッチが形成されていることを特徴とする洋上風力発電装置用タワーの吊り冶具。 It is a hanging jig of the tower for offshore wind power generators according to claim 1,
A suspension jig for a tower for offshore wind power generators, wherein a man hatch for workers to enter and exit is formed at the center of the suspension jig for the tower for offshore wind power generators. 請求項２に記載の洋上風力発電装置用タワーの吊り冶具であって、
前記マンハッチは、開閉自在に構成されていることを特徴とする洋上風力発電装置用タワーの吊り冶具。 It is a hanging jig of the tower for offshore wind power generators according to claim 2,
The said man hatch is comprised so that opening and closing is possible, The suspension jig of the tower for offshore wind power generators characterized by the above-mentioned. 請求項１乃至３のいずれか１項に記載の洋上風力発電装置用タワーの吊り冶具であって、
前記カバー部は円形を成し、前記吊りブラケットは前記カバー部に等間隔で複数個設置されていることを特徴とする洋上風力発電装置用タワーの吊り冶具。 A suspension jig for a tower for an offshore wind power generator according to any one of claims 1 to 3,
The tower lifting jig for an offshore wind power generator, wherein the cover part is circular, and a plurality of the suspension brackets are installed on the cover part at equal intervals.
JP2018104426A 2018-05-31 2018-05-31 Hanger jig for ocean wind power generator tower Pending JP2019210810A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3889457A1 (en) * 2020-04-03 2021-10-06 Siemens Gamesa Renewable Energy A/S Temporary damper assembly
JP2021531428A (en) * 2018-07-26 2021-11-18 ディーム・オフショア・ベーエー・エヌ・ヴェー Devices and Methods for Raising Longitudinal Tubular Elements from Supporting Surfaces at the Outer Ends

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021531428A (en) * 2018-07-26 2021-11-18 ディーム・オフショア・ベーエー・エヌ・ヴェー Devices and Methods for Raising Longitudinal Tubular Elements from Supporting Surfaces at the Outer Ends
JP7284249B2 (en) 2018-07-26 2023-05-30 ディーム・オフショア・ベーエー・エヌ・ヴェー Device and method for raising a tubular element having a longitudinal direction from a supporting surface at its outer end
EP3889457A1 (en) * 2020-04-03 2021-10-06 Siemens Gamesa Renewable Energy A/S Temporary damper assembly
WO2021198074A1 (en) * 2020-04-03 2021-10-07 Siemens Gamesa Renewable Energy A/S Temporary damper assembly

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