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JP7702897B2 - Anti-fouling materials that inhibit the adhesion of marine organisms - Google Patents
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JP7702897B2 - Anti-fouling materials that inhibit the adhesion of marine organisms - Google Patents

Anti-fouling materials that inhibit the adhesion of marine organisms Download PDF

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JP7702897B2
JP7702897B2 JP2022017688A JP2022017688A JP7702897B2 JP 7702897 B2 JP7702897 B2 JP 7702897B2 JP 2022017688 A JP2022017688 A JP 2022017688A JP 2022017688 A JP2022017688 A JP 2022017688A JP 7702897 B2 JP7702897 B2 JP 7702897B2
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pile
adhesion
main body
suppression member
adhesion suppression
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JP2023115464A (en
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真依子 赤塚
百合子 高山
剛 大野
敦史 橋本
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Taisei Corp
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Description

本発明は、洋上風力発電設備の杭に装着することで海洋生物の付着を抑制する付着抑制部材に関する。 The present invention relates to an adhesion prevention member that is attached to the piles of offshore wind power generation facilities to prevent the adhesion of marine organisms.

特許文献１に開示されているように、海上に洋上風力発電設備を設けることで、クリーンで再生可能な風力エネルギーを利用した発電が行われていることが知られている。洋上風力発電設備の基礎構造としては、杭（モノパイル）を海底に打設後、風車とモノパイルを連結させるために接続管（トランジションピース）をモノパイルの上端部に設置する接続構造が知られている（特許文献１）。 As disclosed in Patent Document 1, it is known that electricity is generated using clean and renewable wind energy by installing offshore wind power generation facilities on the sea. A known foundation structure for offshore wind power generation facilities is a connection structure in which a pile (monopile) is driven into the seabed, and then a connecting pipe (transition piece) is installed at the upper end of the monopile to connect the wind turbine and the monopile (Patent Document 1).

特開２０１７-１１５３７４号公報JP 2017-115374 A

洋上風力発電設備の基礎構造を施工する際、モノパイルの上端部は海面付近に位置することから、モノパイルの打設後からトランジションピースの設置までの期間にモノパイルの上端部に海洋生物が付着するおそれがある。
本発明は、モノパイルの打設後からトランジションピースの設置までの期間にモノパイルの上端部に海洋生物が付着することを抑制する付着抑制部材を提案する。 When constructing the foundation structure of an offshore wind power generation facility, the upper end of the monopile is located near the sea surface, so there is a risk of marine organisms attaching to the upper end of the monopile during the period from when the monopile is cast to when the transition piece is installed.
The present invention proposes an adhesion prevention member that prevents marine organisms from attaching to the upper end of a monopile during the period from after the monopile is driven to the installation of a transition piece.

以上の課題を解決するため、請求項１に記載の発明は、海底面に打設される杭の上端部に海洋生物が付着することを抑制する付着抑制部材であって、前記杭の上端部に外嵌合する本体部と、前記杭の上端部に載置するための保持部と、前記保持部の上側に固定される円錐形状の反射部と、を備え、前記本体部は、上方から本体部内へ太陽光を取り込むための中空の略円錐台形状の開口部と、前記杭と前記本体部の間に隙間部を形成する胴部と、を備え、前記開口部の内周面の表面に凹凸が形成されている、または、シリコーン系白色塗料が塗装されている、ことを特徴とする。
請求項２に記載の発明は、請求項１の構成に加え、前記胴部の内周面と前記反射部の外周面の表面に凹凸が形成されている、ことを特徴とする。
請求項３に記載の発明は、請求項１の構成に加え、前記胴部の内周面の表面にシリコーン系白色塗料が塗装されている、ことを特徴とする。
請求項４に記載の発明は、請求項１～３の構成に加え、前記本体部の内部に、海水面に紫外線を照射するための紫外線ランプが設けられている、ことを特徴とする。 In order to solve the above problems, the invention described in claim 1 is an adhesion prevention member for preventing marine organisms from attaching to the upper end of a pile driven into the seabed, comprising: a main body portion that fits externally onto the upper end of the pile, a holding portion for placing on the upper end of the pile, and a conical reflective portion fixed to the upper side of the holding portion , wherein the main body portion comprises a hollow, approximately truncated cone-shaped opening for taking in sunlight from above into the main body portion, and a trunk portion that forms a gap between the pile and the main body portion, and wherein the surface of the inner periphery of the opening is unevenly formed, or is coated with a silicone-based white paint .
The invention described in claim 2 is characterized in that, in addition to the configuration of claim 1, the inner circumferential surface of the body portion and the outer circumferential surface of the reflecting portion are formed with irregularities.
The invention described in claim 3 is characterized in that, in addition to the configuration of claim 1, the surface of the inner circumferential surface of the body portion is painted with a silicone-based white paint.
The invention described in claim 4 is characterized in that, in addition to the configurations of claims 1 to 3, an ultraviolet lamp for irradiating ultraviolet rays onto the seawater surface is provided inside the main body .

本発明の付着抑制部材によれば、海底面に打設される杭の上端部に海洋生物が付着することを抑制することができる。また、杭の上端部に着脱可能であるため、繰り返し使用することができる。 The adhesion prevention member of the present invention can prevent marine organisms from attaching to the upper end of a pile that is driven into the seabed. In addition, since it can be attached and detached to the upper end of the pile, it can be used repeatedly.

本発明の実施形態に係る付着抑制部材を杭に装着した概略断面図である。1 is a schematic cross-sectional view of an adhesion prevention member according to an embodiment of the present invention attached to a pile. （ａ）は本発明の実施形態に係る付着抑制部材を示した概略断面図である。（ｂ）は（ａ）のＡ－Ａ線概略断面図である。1A is a schematic cross-sectional view showing an adhesion-suppressing member according to an embodiment of the present invention, and FIG. 1B is a schematic cross-sectional view taken along line AA of FIG. 本発明の第２実施形態に係る付着抑制部材を示した概略図である。FIG. 6 is a schematic view showing an adhesion suppression member according to a second embodiment of the present invention. 本発明の第２実施形態に係る付着抑制部材を示した概略断面図である。FIG. 6 is a schematic cross-sectional view showing an adhesion suppressing member according to a second embodiment of the present invention.

以下、本発明に係る付着抑制部材１００の実施形態について適宜図面を参照して説明する。なお、以下に示す図面において、同一または同種の部材については、同一の参照符号を付し、重複した説明を適宜省略する。図１は、本発明の実施形態に係る付着抑制部材１００を杭１０に装着した概略断面図である。また、図２は、（ａ）は本発明の実施形態に係る付着抑制部材を示した概略断面図である。（ｂ）は（ａ）のＡ－Ａ線概略断面図である。また、図３は、本発明の第２実施形態に係る付着抑制部材を示した概略図である。また、図４は、本発明の第２実施形態に係る付着抑制部材を示した概略断面図である。 Below, an embodiment of the adhesion suppression member 100 according to the present invention will be described with reference to the appropriate drawings. In the drawings shown below, the same or similar members are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. Figure 1 is a schematic cross-sectional view of an adhesion suppression member 100 according to an embodiment of the present invention attached to a pile 10. Figure 2 (a) is a schematic cross-sectional view of an adhesion suppression member according to an embodiment of the present invention. (b) is a schematic cross-sectional view of line A-A in (a). Figure 3 is a schematic view of an adhesion suppression member according to a second embodiment of the present invention. Figure 4 is a schematic cross-sectional view of an adhesion suppression member according to the second embodiment of the present invention.

付着抑制部材１００は、洋上風力発電設備の杭１０の上端部に装着することで海洋生物の付着を抑制するものである。なお、杭１０は、海底に打設されるモノパイル式基礎杭（モノパイル）である。例えば、大口径鋼管杭などである。杭１０の海洋生物付着を抑制したい範囲（杭１０の上端部）を付着抑制部材１００で覆うようにする。なお、本実施形態では、杭１０は、直径が９００ｍｍ程度の鋼管（杭１０）に装着される鋼材の付着抑制部材１００として説明するが、杭１０の直径や材質はこれに限定されない。 The adhesion suppression member 100 is attached to the upper end of the pile 10 of an offshore wind power generation facility to suppress adhesion of marine organisms. The pile 10 is a monopile foundation pile (monopile) that is driven into the seabed. For example, it is a large-diameter steel pipe pile. The area of the pile 10 where adhesion of marine organisms is to be suppressed (the upper end of the pile 10) is covered with the adhesion suppression member 100. In this embodiment, the pile 10 is described as a steel adhesion suppression member 100 that is attached to a steel pipe (pile 10) with a diameter of about 900 mm, but the diameter and material of the pile 10 are not limited to this.

図１に示すように、付着抑制部材１００は、本体部１と保持部２と反射部３により形成される。付着抑制部材１００の形状は、杭１０に連結されるトランジションピース（図は省略）の接続部分の形状とすることが望ましい。なお、洋上風力発電設備の基礎構造としてトランジションピースの内径は、杭１０の外径よりも約数１０センチ程度多くなるように形成されており、トランジションピースを杭１０に結合後、隙間にグラウト材が充填される。 As shown in FIG. 1, the adhesion suppression member 100 is formed by a main body portion 1, a holding portion 2, and a reflecting portion 3. The shape of the adhesion suppression member 100 is preferably the shape of the connection portion of a transition piece (not shown) that is connected to a pile 10. As a foundation structure for an offshore wind power generation facility, the inner diameter of the transition piece is formed to be approximately several tens of centimeters larger than the outer diameter of the pile 10, and after the transition piece is joined to the pile 10, the gap is filled with grout material.

本体部１は、開口部１１と胴部１２で構成されている。本体部１は、杭１０の上端部に外嵌合するものである。開口部１１は、杭１０の先端部に付着抑制部材１００を装着した際に、上方から内部へ太陽光を取り込むために上部が開口しており、下方から上方に向かうにつれて縮径する中空の略円錐台形状に形成されている。なお、形状は上部が開口していればよく、例えば円柱形状であってもよい。胴部１２は、本体部１が杭１１に装着されると、胴部１２の内周面と杭１０の外周面の間に隙間部４が形成される。胴部１２の内周面の形状と大きさは、トランジションピースの内周面の形状と大きさと同程度に形成される。具体的には、胴部１２の内径は、杭１０の外径よりも約数１０センチ程度多くなるように形成されている。 The main body 1 is composed of an opening 11 and a body 12. The main body 1 is fitted to the upper end of the pile 10. The opening 11 is open at the top to allow sunlight to enter from above when the adhesion suppression member 100 is attached to the tip of the pile 10, and is formed in a hollow, approximately truncated cone shape that narrows in diameter as it moves from bottom to top. The shape may be, for example, cylindrical, as long as it is open at the top. When the main body 1 is attached to the pile 11, the body 12 forms a gap 4 between the inner surface of the body 12 and the outer surface of the pile 10. The shape and size of the inner surface of the body 12 are formed to be approximately the same as the shape and size of the inner surface of the transition piece. Specifically, the inner diameter of the body 12 is formed to be approximately several tens of centimeters larger than the outer diameter of the pile 10.

図２（ａ）は本発明の実施形態に係る付着抑制部材を示した概略断面図である。（ｂ）は（ａ）のＡ－Ａ線概略断面図である。図２（ｂ）に示すように、保持部２は、胴部１２の内周面から中心に向けて突出するように複数（４本）の部材が設けられている。保持部２は、棒形状に形成されており、杭１０の上端部に付着抑制部材１００を載置する際に、反射部４を下方から支えるためのものである。なお、実施形態では、４本であるが、付着抑制部材１００を杭１０の上端部に装着できれば形状や本数は限定されない。例えば、十字状や格子状であってもよい。 Figure 2(a) is a schematic cross-sectional view showing an adhesion suppression member according to an embodiment of the present invention. (b) is a schematic cross-sectional view taken along line A-A in (a). As shown in Figure 2(b), the holding portion 2 is provided with multiple (four) members that protrude from the inner circumferential surface of the body portion 12 toward the center. The holding portion 2 is formed in a rod shape, and is intended to support the reflecting portion 4 from below when the adhesion suppression member 100 is placed on the upper end of the pile 10. Note that, although there are four in the embodiment, the shape and number are not limited as long as the adhesion suppression member 100 can be attached to the upper end of the pile 10. For example, a cross or lattice shape is also acceptable.

反射部３は、円錐形状に形成されており、開口部１１の開口から本体部１内部に取り込んだ太陽光を反射させるためのものである。なお、保持部２の上側に固定されており、開口部１１と反射部３の間に一定の空間が形成される。なお、反射部３の形状は、円錐形状に限定されるものではなく、例えば半円形状や略三角錐形状であってもよい。 The reflecting part 3 is formed in a conical shape and is intended to reflect sunlight that has been taken into the main body 1 through the opening of the opening 11. It is fixed to the upper side of the holding part 2, and a certain space is formed between the opening 11 and the reflecting part 3. The shape of the reflecting part 3 is not limited to a conical shape, and may be, for example, a semicircular shape or an approximately triangular pyramid shape.

次に、杭１０に付着抑制部材１００を装着した際の状況について、図１により説明する。杭１０が海底に打設されると、杭１０の上端部が海面付近に位置する。図１に示すように、付着抑制部材１００を杭１０に装着すると、胴部１２の一部が海面よりも下方に位置し、隙間部４には海水が侵入する。なお、付着抑制部材１００は、海底に杭１０を打設した後、杭１０に連トランジションピース（図は省略）を接続するまでの間に使用するものである。すなわち、トランジションピース（図は省略）を接続するまでの間に使用した付着抑制部材１００は、他の杭１０で再利用できるように杭１０に対して固定されるものではなく着脱可能である。 Next, the situation when the adhesion suppression member 100 is attached to the pile 10 will be described with reference to FIG. 1. When the pile 10 is driven into the seabed, the upper end of the pile 10 is located near the sea surface. As shown in FIG. 1, when the adhesion suppression member 100 is attached to the pile 10, a part of the body 12 is located below the sea surface, and seawater enters the gap 4. The adhesion suppression member 100 is used after the pile 10 is driven into the seabed and before the connecting transition piece (not shown) is connected to the pile 10. In other words, the adhesion suppression member 100 used before the connecting transition piece (not shown) is connected is not fixed to the pile 10 but is detachable so that it can be reused with other piles 10.

図１に示すように、開口部１１の内周面と反射部２の外周面の表面に凹凸が形成されている。このように凹凸を形成することで開口部１２の内部で太陽光が反射しやすいようにする。さらに、胴部１２の内周面の表面に凹凸を形成しても良い。
また、本体部１１の内周面と反射部２の外周面にはシリコーン系白色塗料が塗装されている。また、図４に示すように、本体部１の内部（胴部１２の内部）に紫外線ランプ６を設けて海水面を紫外線で照射し、杭１０の海洋生物付着を抑制してもよい。 1, unevenness is formed on the inner peripheral surface of the opening 11 and the outer peripheral surface of the reflecting portion 2. Forming unevenness in this manner makes it easier for sunlight to be reflected inside the opening 12. Furthermore, unevenness may be formed on the surface of the inner peripheral surface of the body 12.
A silicone-based white paint is applied to the inner peripheral surface of the main body 11 and the outer peripheral surface of the reflecting portion 2. As shown in Fig. 4, an ultraviolet lamp 6 may be provided inside the main body 1 (inside the trunk 12) to irradiate the seawater surface with ultraviolet light and suppress adhesion of marine organisms to the pile 10.

図３は、本発明の第２実施形態に係る付着抑制部材を示した概略図である。付着抑制部材１００の内周面と杭１０の外周面との間の海水（隙間部４の海水）を循環させることで、杭１０の上端部に海洋生物が付着するのを抑制するものである。本体部１の上部と下部を循環ホース５で連結しポンプ（図は省略）で上部の海水を下部に移動させることで、付着抑制部材１００の内周面と杭１０の外周面との間の海水を下部と上部で交換する。図４に示すように、隙間部４の上部の海水は、循環ホース５を介して隙間部４の下部へ放出される。なお、隙間部４の下部へ海水を放出する際は、図４に示すように少し斜め上方に向けて海水が放水される Figure 3 is a schematic diagram showing an adhesion suppression member according to the second embodiment of the present invention. By circulating seawater (seawater in the gap 4) between the inner circumferential surface of the adhesion suppression member 100 and the outer circumferential surface of the pile 10, the adhesion of marine organisms to the upper end of the pile 10 is suppressed. The upper and lower parts of the main body 1 are connected with a circulation hose 5, and the seawater in the upper part is moved to the lower part by a pump (not shown), so that the seawater between the inner circumferential surface of the adhesion suppression member 100 and the outer circumferential surface of the pile 10 is exchanged between the lower part and the upper part. As shown in Figure 4, the seawater in the upper part of the gap 4 is discharged to the lower part of the gap 4 through the circulation hose 5. When discharging seawater to the lower part of the gap 4, the seawater is discharged slightly diagonally upward as shown in Figure 4.

以上、本発明の実施形態について説明したが、本発明は、前述の実施形態に限られず、前記の各構成要素については本発明の趣旨を逸脱しない範囲で適宜変更が可能である。 例えば、本実施形態では、洋上風力発電設備の杭１０に装着する付着抑制部材について説明したが、例えば、桟橋などの杭に使用してもよい。 Although an embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and each of the above-mentioned components can be modified as appropriate without departing from the spirit of the present invention. For example, in this embodiment, an adhesion suppression member that is attached to the pile 10 of an offshore wind power generation facility is described, but it may also be used, for example, on piles of a pier, etc.

１ 本体部
１０ 杭
１１ 開口部
１２ 胴部
２ 保持部
３ 反射部
４ 隙間部
５ 循環ホース
６ 紫外線ランプ REFERENCE SIGNS LIST 1 Main body 10 Stake 11 Opening 12 Trunk 2 Holding section 3 Reflecting section 4 Gap section 5 Circulation hose 6 Ultraviolet lamp

Claims (4)

海底面に打設される杭の上端部に海洋生物が付着することを抑制する付着抑制部材であって、
前記杭の上端部に外嵌合する本体部と
前記杭の上端部に載置するための保持部と、
前記保持部の上側に固定される円錐形状の反射部と、を備え、
前記本体部は、上方から本体部内へ太陽光を取り込むための中空の略円錐台形状の開口部と、
前記杭と前記本体部の間に隙間部を形成する胴部と、を備え、
前記開口部の内周面の表面に凹凸が形成されている、または、シリコーン系白色塗料が塗装されている、
ことを特徴とする付着抑制部材。 An adhesion suppression member for suppressing adhesion of marine organisms to the upper end of a pile driven into the seabed,
A main body portion that fits externally onto the upper end portion of the pile and a holding portion for placing on the upper end portion of the pile;
A cone-shaped reflector fixed to an upper side of the holding portion ,
The main body has a hollow opening having a generally truncated cone shape for taking in sunlight from above into the main body,
A trunk portion that forms a gap between the pile and the main body portion,
The inner peripheral surface of the opening has an uneven surface or is coated with a silicone-based white paint.
An adhesion suppression member characterized by: 前記胴部の内周面と前記反射部の外周面の表面に凹凸が形成されている、
ことを特徴とする請求項１に記載の付着抑制部材。 The inner peripheral surface of the body and the outer peripheral surface of the reflecting portion are formed with unevenness.
The adhesion suppression member according to claim 1 . 前記胴部の内周面の表面にシリコーン系白色塗料が塗装されている、
ことを特徴とする請求項１に記載の付着抑制部材。 The inner circumferential surface of the body is coated with a silicone-based white paint.
The adhesion suppression member according to claim 1 . 前記本体部の内部に、海水面に紫外線を照射するための紫外線ランプが設けられている、
ことを特徴とする請求項１～３に記載の付着抑制部材。 An ultraviolet lamp for irradiating the seawater surface with ultraviolet rays is provided inside the main body.
The adhesion suppressing member according to any one of claims 1 to 3.
JP2022017688A 2022-02-08 2022-02-08 Anti-fouling materials that inhibit the adhesion of marine organisms Active JP7702897B2 (en)

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