JP5789310B2 - Anode mounting structure with hull skin - Google Patents

Anode mounting structure with hull skin Download PDF

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JP5789310B2
JP5789310B2 JP2014013001A JP2014013001A JP5789310B2 JP 5789310 B2 JP5789310 B2 JP 5789310B2 JP 2014013001 A JP2014013001 A JP 2014013001A JP 2014013001 A JP2014013001 A JP 2014013001A JP 5789310 B2 JP5789310 B2 JP 5789310B2
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anode
hull
outer plate
mounting structure
hull outer
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JP2015140058A (en
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洋一 大谷
洋一 大谷
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Shin Kurushima Dockyard Co Ltd
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Description

本発明は、船体外板に取り付けるアノードの取付構造に関する。   The present invention relates to an attachment structure for an anode attached to a hull outer plate.

従来、船舶には図４および図５のように船体外板の電食を防止するため防腐板としてアノード電極が取付けられている。
図４は、従来の船舶に取り付けられるアノード電極の配置位置を示す概略図であり、図５は、当該アノード電極を船体外板上から見た拡大図である。図４、図５において、符号１００は、船体、１０１は、船体外板、１０２は、アノード、１０３は、喫水線、１０４は、居住区、太矢印は水の流れである。 Conventionally, as shown in FIG. 4 and FIG. 5, an anode electrode is attached to a ship as a preservative plate in order to prevent electric corrosion of the hull outer plate.
FIG. 4 is a schematic view showing an arrangement position of an anode electrode attached to a conventional ship, and FIG. 5 is an enlarged view of the anode electrode as seen from above a hull outer plate. 4 and 5, reference numeral 100 is a hull, 101 is a hull outer plate, 102 is an anode, 103 is a water line, 104 is a residential area, and a thick arrow is a flow of water.

図５から明らかなように、従来の船舶では、前記アノード１０２を前記船体外板１０１に取り付けた場合、該アノード１０２の深さ分だけ船体外板１０１から突出しているため、喫水線１０３下の水の流れに悪影響を与えてしまい、航海速力の低下あるいは主機燃費の悪化といった問題を引き起こす可能性があった。例えば、５年仕様のアノード電極の場合、約０．０５ノットの速度低下を招く。   As apparent from FIG. 5, in the conventional ship, when the anode 102 is attached to the hull skin 101, it protrudes from the hull skin 101 by the depth of the anode 102. This could adversely affect the flow of the aircraft and cause problems such as a decrease in navigation speed or a deterioration in main engine fuel consumption. For example, in the case of an anode electrode with a 5-year specification, the speed is reduced by about 0.05 knots.

そこで、例えば、前記アノードを船尾船体外板に設けたレセス内に配置する実開昭６３−１０２５９５号公報に開示のものが知られている。
実開昭６３−１０２５９５号の開示は、考案名称「船舶の防食用アノード」に係り、「船尾ライン形状に影響を及ぼさない取付可能な規格型アノードと取替えの簡便さを目的とし、新設時から衰耗による取替え時期までアノードが船体外板ラインとほぼ同一面に位置し、船舶の推進性能の維持、向上を計かる。また、従来のアノード配置は垂直方向とすると水の抵抗が増すため、水平方向の配置しか出来なかったが、これをアノード配置効率と船体形状（船のライン）に適切な多方向の取付けを可能とする、船舶の防食用アノードをも提供する」ことの解決する問題点において（同公報明細書２頁１０行〜１９行参照）、「船尾船体外板に設けた開口にボックスプレートから成る水密構造のレセスを設け該レセスに緩衝材を有するアノードを前記外板に当接した」構成とすることにより（同公報明細書実用新案登録請求の範囲の記載参照）、「（１）船尾ラインがスムーズな曲線となり、船舶の推進性能が向上する。（２）アノードの取付け、取替えが容易となる。（３）船体構造部位に適した多方向への配置が可能。」等の効果を奏するものである（同公報明細書５頁４行〜８行参照）。 Therefore, for example, the one disclosed in Japanese Utility Model Laid-Open No. 63-102595 in which the anode is disposed in a recess provided on the stern hull outer plate is known.
The disclosure of Japanese Utility Model Publication No. 63-102595 is related to the devised title “Anode for Corrosion Protection of Ships”, “From the time of the new installation, the purpose is to replace the standard anode that can be mounted without affecting the shape of the stern line. Until the time of replacement due to wear, the anode is positioned almost on the same plane as the hull skin line to maintain and improve the propulsion performance of the ship. The problem to be solved is to provide an anti-corrosion anode for ships that can only be placed in the horizontal direction, but enables multi-directional mounting suitable for the anode placement efficiency and hull shape (ship line). (Refer to page 2, lines 10 to 19 of the specification of the publication), “An anode having a buffer material is provided in the recess provided with a watertight recess made of a box plate in the opening provided in the stern hull outer plate. By adopting the configuration of “abutting on the outer plate” (see the description of the claims of the utility model registration in the specification of the publication), “(1) The stern line becomes a smooth curve and the propulsion performance of the ship is improved. 2) The anode can be easily attached and replaced. (3) Multi-directional arrangement suitable for the hull structure part is possible. ”(The same specification, page 5, lines 4 to 8) reference).

図６は、実開昭６３−１０２５９５号公報に第２図として添付される開示の考案の船舶の防食用アノードの一実施例の部分詳細図であり、図６において、２０１は、船尾船体、２０３は、アノード、２０４は、開口、２０５は、ボックスプレート、２０６は、緩衝材、２０７は、レセスである（なお、符号は、先行技術であることを明らかにするために、本願出願人において、２０１から始まる３桁に変更して付した。）。   FIG. 6 is a partial detailed view of an embodiment of an anticorrosion anode for a ship according to the disclosed invention attached as FIG. 2 to Japanese Utility Model Publication No. 63-102595. In FIG. 6, 201 is a stern hull, Reference numeral 203 denotes an anode, 204 denotes an opening, 205 denotes a box plate, 206 denotes a cushioning material, and 207 denotes a recess. , Changed to 3 digits starting from 201.)

しかしながら、実開昭６３−１０２５９５号に開示の「船舶の防食用アノード」は、レセス２０７内に緩衝材２０６を配設するため、緩衝材２０６自体の劣化により反発力が低下し、船舶推進性能の低下やアノード効果の機能低下等の問題が生じる。また、船舶推進性能という点からすれば、船体外板１０１とアノード表面は面一であることが望ましいが、防食という面からすれば、船体外板１０１に凹部を設け、その周辺を流れる水流を凹部に引き込み、前記アノード面全体を水流に接触させる方が防食効果を高め、船体外板１０１等に対する防食効果に寄与する。   However, the “anode for anticorrosion of a ship” disclosed in Japanese Utility Model Publication No. 63-102595 is provided with a buffer material 206 in the recess 207, so that the repulsive force decreases due to the deterioration of the buffer material 206 itself, and the ship propulsion performance There arises a problem such as lowering of the anode and the function of the anode effect. From the standpoint of ship propulsion performance, it is desirable that the hull outer plate 101 and the anode surface are flush with each other, but from the standpoint of anticorrosion, the hull outer plate 101 is provided with a recess, and the water flow that flows around it is provided. Pulling into the recess and bringing the entire anode surface into contact with the water flow increases the anticorrosion effect and contributes to the anticorrosion effect on the hull outer plate 101 and the like.

実開昭６３−１０２５９５号公報Japanese Utility Model Publication No. 63-102595

そこで、上記の問題点に鑑み、船体外板からアノードを突出させず、かつ、アノードの表面位置を適宜の位置に調整可能なアノード取付構造を提供することを目的とする。   In view of the above problems, an object of the present invention is to provide an anode mounting structure that can adjust the surface position of the anode to an appropriate position without protruding the anode from the hull outer plate.

上記目的を達成するために、本願請求項１に係る発明は、船舶船体外板の適宜の箇所に防食アノードを配置するレセスを設け、前記アノードの表面を前記船体外板と面一又はそれより低い適宜の位置とし、かつ、前記レセスと前記アノードとの間に周囲の水流が流れ込む間隙を設け、前記アノードを船体内から押し出し可能にし、船舶の航海速力の低下あるいは主機燃費の計算結果に基づいて前記アノードの船体内からの押し出し量が決定したことを特徴とする。
また、本願請求項２に係る発明は、前記請求項１に記載の船体外板付アノード取付構造において、船舶船体外板の適宜の箇所に防食アノードを配置するレセスを設け、当該レセス開口面に複数の開口を有するアノードカバーを前記船体外板と面一に設けたことを特徴とする。
さらに、本願請求項３に係る発明は、前記請求項１又は２に記載の船体外板付アノード取付構造において、前記レセスは、船舶のプロペラ近傍の船尾部に配置したことを特徴とする。
そして、本願請求項４に係る発明は、前記請求項２に記載の船体外板付アノード取付構造において、前記アノードカバーに設ける複数の開口のうちの一つの開口の大きさを前記アノードカバーの表面積の３０分の１よりも小さくしたことを特徴とする。 In order to achieve the above object, the invention according to claim 1 of the present application provides a recess for disposing the anticorrosion anode at an appropriate location on the ship hull outer plate, and the surface of the anode is flush with the hull outer plate or more. Based on the calculation result of the decrease in the navigation speed of the ship or the fuel consumption of the main engine, a low appropriate position is provided, and a gap through which the surrounding water flow flows is provided between the recess and the anode so that the anode can be pushed out from the hull. The amount of extrusion of the anode from the hull is determined .
In the invention according to claim 2 of the present application, in the anode mounting structure with a hull outer plate according to the first aspect, a recess for disposing the anticorrosion anode is provided at an appropriate location of the ship hull outer plate, and a plurality of the recess opening surfaces are provided. An anode cover having an opening is provided flush with the hull outer plate.
Furthermore, the invention according to claim 3 of the present application is characterized in that, in the anode mounting structure with a hull outer plate according to claim 1 or 2, the recess is arranged at a stern part near a propeller of a ship.
In the invention according to claim 4 of the present application, in the anode mounting structure with a hull outer plate according to claim 2, the size of one of the plurality of openings provided in the anode cover is set to a surface area of the anode cover. It is characterized by being smaller than 1/30.

本発明は、上述のとおり構成されているので、次に記載する効果を奏する。
（１）アノードの持つ防食効果を損なうことなく、かつ、船体水線面に突出させないため、喫水線下の水の流れへの悪影響を最小限に留めることが可能となった。
（２）また、主機燃費の悪影響を最小限とすることが可能となった。
（３）さらに、アノードの押し出し量を主機燃費等と相関させるようにしたので、アノード効果と推進性能について、効率の良い船体外板付アノード取付構造とすることができる。 Since this invention is comprised as mentioned above, there exists an effect described below.
(1) Since the anticorrosion effect of the anode is not impaired and it does not protrude from the hull waterline surface, it is possible to minimize the adverse effect on the water flow under the waterline.
(2) In addition, the adverse effect of main engine fuel consumption can be minimized.
(3) Further, since the anode push-out amount is correlated with the main engine fuel consumption and the like, an anode mounting structure with a hull outer plate that is efficient in terms of anode effect and propulsion performance can be achieved.

図１（ａ）（ｂ）（ｃ）は、本発明に係る船体外板付アノード取付構造を実施するための船体外板付アノード取付構造の実施例１に係る船体外板付アノード取付構造を上から見た概略図であり、図１（ａ）はアノード取り付け時、図１（ｂ）は、アノード減少時、図１（ｃ）は、アノード押し出し時の状態を示す概略図である。1 (a), (b), and (c) are views of an anode mounting structure with a hull outer plate according to a first embodiment of an anode mounting structure with a hull outer plate for implementing the anode mounting structure with a hull outer plate according to the present invention. 1A is a schematic diagram showing a state when an anode is attached, FIG. 1B is a schematic diagram showing a state when the anode is reduced, and FIG. 1C is a schematic diagram showing a state when the anode is pushed out. 図２（ａ）は、本発明に係る船体外板付アノード取付構造の実施例２に係る船体外板付アノード取付構造を上から見た概略図であり、図２（ｂ）は、図２（ａ）に示した矢印方向から見た概略図である。FIG. 2A is a schematic view of an anode mounting structure with a hull outer plate according to a second embodiment of the anode mounting structure with a hull outer plate according to the present invention, and FIG. It is the schematic seen from the arrow direction shown. 図３（ａ）（ｂ）（ｃ）は、本実施例３に係る船体外板付アノード取付構造を上から見た概略図であり、図３（ａ）はアノード１の取り付け概略図、図３（ｂ）は、図３（ａ）に示した矢印方向から見たアノードカバー６の概略図、図３（ｃ）は、アノード１の押し出し時の状態を示す概略図である。FIGS. 3A, 3B, and 3C are schematic views of the anode mounting structure with a hull outer plate according to the third embodiment as viewed from above, and FIG. FIG. 3B is a schematic view of the anode cover 6 viewed from the direction of the arrow shown in FIG. 3A, and FIG. 3C is a schematic view showing a state when the anode 1 is pushed out. 図４は、従来の船舶に取り付けられるアノード電極の配置位置を示す概略図である。FIG. 4 is a schematic view showing the arrangement position of an anode electrode attached to a conventional ship. 図５は、当該アノード電極を船体外板上から見た拡大図である。FIG. 5 is an enlarged view of the anode electrode as seen from above the hull outer plate. 図６は、実開昭６３−１０２５９５号公報に第２図として添付される開示の考案の船舶の防食用アノードの一実施例の部分詳細図である。FIG. 6 is a partial detail view of an embodiment of an anticorrosion anode for a ship according to the disclosed device attached as FIG. 2 to Japanese Utility Model Laid-Open No. 63-102595.

本発明に係る船体外板付アノード取付構造を実施するための実施例を図面に基づき詳細に説明する。   An embodiment for carrying out an anode mounting structure with a hull outer plate according to the present invention will be described in detail with reference to the drawings.

図１（ａ）（ｂ）（ｃ）は、本発明に係る船体外板付アノード取付構造を実施するための船体外板付アノード取付構造の実施例１に係る船体外板付アノード取付構造を上から見た概略図であり、図１（ａ）はアノード取り付け時、図１（ｂ）は、アノード減少時、図１（ｃ）は、アノード押し出し時の状態を示す概略図である。図１（ａ）（ｂ）（ｃ）において、符号１０１は、図２、図３に示したと同じ船体外板、１は、アノード、２は、レセス、３は、ネジ状支持棒、４は、水密パッキン、５は、ハンドルである。   1 (a), (b), and (c) are views of an anode mounting structure with a hull outer plate according to a first embodiment of an anode mounting structure with a hull outer plate for implementing the anode mounting structure with a hull outer plate according to the present invention. 1A is a schematic diagram showing a state when an anode is attached, FIG. 1B is a schematic diagram showing a state when the anode is reduced, and FIG. 1C is a schematic diagram showing a state when the anode is pushed out. 1 (a), (b) and (c), reference numeral 101 denotes the same hull outer plate as shown in FIGS. 2 and 3, 1 is an anode, 2 is a recess, 3 is a screw-like support bar, The watertight packing 5 is a handle.

図１（ａ）（ｂ）（ｃ）から明らかなように、本実施例１に係る船体外板付アノード取付構造は、前記アノード１の取り付け箇所の前記船体外板１０１に前記レセス２（凹構造）を設け、つまり、前記アノード１を前記船体外板１０１に設けた凹構造であるレセス２内に配置する構造とすることにより、前記アノード１の表面を前記船体外板１０１と面一又は低い適宜の位置とする構造とし、周囲の水流を前記レセス２と前記アノード１との間に流れ込みやすくさせ、水流とアノード１との接触面積を高め、適切な一にアノード１の表面とすることにより、アノード効果、すなわち、防食効果を高めんとするものである。つまり、アノード効果を高めつつ、推進性能の維持の両者の調整を図ろうとするものであり、この結果、前記アノード１の厚さは、２年仕様で４０ｍｍ、３年仕様で５０ｍｍ程度で足りることとなる。   As is clear from FIGS. 1A, 1B, and 1C, the anode mounting structure with a hull outer plate according to the first embodiment has the recess 2 (concave structure) on the hull outer plate 101 at the mounting position of the anode 1. ), That is, the anode 1 is arranged in the recess 2 which is a concave structure provided on the hull outer plate 101, so that the surface of the anode 1 is flush with or lower than the hull outer plate 101. By making the structure in an appropriate position, the surrounding water flow can easily flow between the recess 2 and the anode 1, the contact area between the water flow and the anode 1 is increased, and the surface of the anode 1 is made appropriate. It is intended to enhance the anode effect, that is, the anticorrosion effect. In other words, it is intended to adjust both the propulsion performance while increasing the anode effect. As a result, the thickness of the anode 1 should be about 40 mm for the 2-year specification and about 50 mm for the 3-year specification. It becomes.

そして、このような構成からなる本実施例１に係る船体外板付アノード取付構造において、前記アノード１が経年の喫水線１０３下に置かれること等により前記アノード１が減少したりして、その表面が後退して、図１（ｂ）に示すように、前記船体外板１０１と前記アノード１の表面が、適切な位置を維持できなくなる状態となったときには、前記ハンドル５、５を回動させて前記アノード１を押し出し、図１（ｃ）に示すように、その表面が前記船体外板１０１に対し、適切な位置になるようにして、アノード効果を維持すると共に船体抵抗を減少することができるようにしたものである。
なお、当該押し出し量は、航海速力の低下あるいは主機燃費等の計算結果から算出される押し出し量とする。 And in the anode mounting structure with a hull outer plate according to the first embodiment having such a configuration, the anode 1 is reduced by placing the anode 1 under the aged draft line 103, and the surface thereof is reduced. As shown in FIG. 1B, when the hull outer plate 101 and the surface of the anode 1 cannot maintain the proper positions as shown in FIG. 1B, the handles 5 and 5 are rotated. As shown in FIG. 1C, the anode 1 is pushed out so that the surface thereof is in an appropriate position with respect to the hull outer plate 101, so that the anode effect can be maintained and the hull resistance can be reduced. It is what I did.
It should be noted that the amount of extrusion is the amount of extrusion calculated from the result of calculation such as reduction in navigation speed or fuel consumption of the main engine.

このように本実施例１に係る船体外板付アノード取付構造は、アノード１の押し出し量を航海速力の低下あるいは主機燃費と関連づけて決定できるようにしたことにある。   As described above, the anode mounting structure with a hull outer plate according to the first embodiment is that the push-out amount of the anode 1 can be determined in association with the decrease in the navigation speed or the fuel consumption of the main engine.

個々のアノード取付位置や船舶の推進性能及びアノード１の減少から見て、プロペラ（図示外）近傍の船尾部に配置すれば最も効果的であると想定されるが、図４に示すように、船底全体に配置することを妨げない。また、レセス２の大きさは、本実施例１に係る船体外板付アノード取付構造では、３００ｍｍ×１５０ｍｍ×１００ｍｍ（縦×横×深さ）を想定しているが、排水量、船底面積、取付位置等をも勘案して前記レセス２の大きさや前記アノード１の押し出し量を決定する。   From the viewpoint of the individual anode mounting position and the propulsion performance of the ship and the decrease in the anode 1, it is assumed that it is most effective if it is arranged in the stern part near the propeller (not shown), but as shown in FIG. Does not prevent it from being placed on the entire bottom of the ship. In addition, the size of the recess 2 is assumed to be 300 mm × 150 mm × 100 mm (vertical × horizontal × depth) in the anode mounting structure with a hull outer plate according to the first embodiment. The size of the recess 2 and the extrusion amount of the anode 1 are determined in consideration of the above.

次に、本発明に係る船体外板付アノード取付構造を実施するための実施例２を図面に基づき詳細に説明する。
図２（ａ）は、本発明に係る船体外板付アノード取付構造の実施例２に係る船体外板付アノード取付構造を上から見た概略図であり、図２（ｂ）は、図２（ａ）に示した矢印方向から見た概略図である。図２（ａ）（ｂ）において、符号１、２及び１０１は、図１（ａ）（ｂ）（ｃ）に示したものと同じアノード１及びレセス２並びに船体外板１０１であり、その余の符号の６は、アノードカバー、７は、アノードカバー受け、８は、留具である。 Next, Example 2 for carrying out the hull outer plate attached anode mounting structure according to the present invention will be described in detail with reference to the drawings.
FIG. 2A is a schematic view of an anode mounting structure with a hull outer plate according to a second embodiment of the anode mounting structure with a hull outer plate according to the present invention, and FIG. It is the schematic seen from the arrow direction shown. 2 (a) and 2 (b), reference numerals 1, 2 and 101 denote the same anode 1, recess 2 and hull outer plate 101 as those shown in FIGS. 1 (a), (b) and (c), and the remainder. 6 is an anode cover, 7 is an anode cover receiver, and 8 is a fastener.

本実施例２に係る船体外板付アノード取付構造は、当該レセス２内に前記アノード１を配置し、さらに、当該レセス２の開口面に前記船体外板１０１と面一となる前記アノードカバー６を設けた構造のものである。このため、前記レセス２内の前記船体外板１０１近傍には、前記アノードカバー受け７、７を設け、前記アノードカバー６を前記留具８、８で固定するようにしたものである。
また、前記アノードカバー６は、図２（ｂ）に示すように、複数の開口であるアノードカバー穴９、９、９、９が設けられ、当該複数のアノードカバー穴９を通じて船体防食の、いわゆるアノード効果を得られるようにしたものである。 In the anode mounting structure with a hull outer plate according to the second embodiment, the anode 1 is disposed in the recess 2, and the anode cover 6 that is flush with the hull outer plate 101 is provided on the opening surface of the recess 2. The structure is provided. Therefore, the anode cover receivers 7 and 7 are provided near the hull outer plate 101 in the recess 2, and the anode cover 6 is fixed by the fasteners 8 and 8.
Further, as shown in FIG. 2B, the anode cover 6 is provided with anode cover holes 9, 9, 9, 9 which are a plurality of openings, and so-called hull anticorrosion through the plurality of anode cover holes 9. The anode effect can be obtained.

当該アノードカバー穴９の数及び面積は、当該アノードカバー６の表面積に比して大きくない面積とし、その結果、船舶の推進性能に影響を及ぼさない範囲内のものとする。具体的には、水槽試験によれば、本実施例２に係る船体外板付アノード取付構造では、前記アノードカバー６のアノードカバー穴９の数を４個とし、かつ、その一つの穴９の大きさを前記アノードカバー６の表面積の３０分の１程度とすれば、船舶の推進性能に影響を及ぼさない。したがって、１つのアノードカバー穴９の大きさを前記アノードカバー６の表面積の３０分の１よりも小さくするのであれば、前記アノードカバー穴９の数を増やしても良い。なお、前記アノードカバー穴９の形状は、長方形、円形、楕円形のいずれでもあっても良い。   The number and area of the anode cover holes 9 are not so large as compared to the surface area of the anode cover 6 and, as a result, are within a range that does not affect the propulsion performance of the ship. Specifically, according to the water tank test, in the anode mounting structure with a hull outer plate according to the second embodiment, the number of the anode cover holes 9 of the anode cover 6 is four, and the size of the one hole 9 is large. If the height is set to about 1/30 of the surface area of the anode cover 6, the propulsion performance of the ship is not affected. Therefore, if the size of one anode cover hole 9 is made smaller than 1/30 of the surface area of the anode cover 6, the number of anode cover holes 9 may be increased. The shape of the anode cover hole 9 may be any of a rectangle, a circle, and an ellipse.

また、本実施例２に係る船体外板付アノード取付構造も、船体に対する取付位置等は、上記実施例１に係る船体外板付アノード取付構造の取付位置に準じて配置する。   In addition, the hull outer plate attached anode mounting structure according to the second embodiment is also arranged in accordance with the hull outer plate attached anode mounting structure according to the first embodiment.

次に、本発明に係る船体外板付アノード取付構造を実施するための実施例３を図面に基づき詳細に説明する。
図３（ａ）（ｂ）（ｃ）は、本実施例３に係る船体外板付アノード取付構造を上から見た概略図であり、図３（ａ）はアノード１の取り付け概略図、図３（ｂ）は、図３（ａ）に示した矢印方向から見たアノードカバー６の概略図、図３（ｃ）は、アノード１の押し出し状態を示す概略図である。図３（ａ）（ｂ）（ｃ）において、使用する符号は、図１（ａ）（ｂ）（ｃ）及び図２（ａ）（ｂ）に示した同じ部材は同じ符号で示し、各部材の機能に変更がない限りその説明は省略する。 Next, Example 3 for carrying out the hull outer plate attached anode mounting structure according to the present invention will be described in detail with reference to the drawings.
FIGS. 3A, 3B, and 3C are schematic views of the anode mounting structure with a hull outer plate according to the third embodiment as viewed from above, and FIG. FIG. 3B is a schematic view of the anode cover 6 viewed from the direction of the arrow shown in FIG. 3A, and FIG. 3C is a schematic view showing an extruded state of the anode 1. 3 (a) (b) (c), the symbols used are the same members shown in FIGS. 1 (a), (b), (c) and FIGS. The description is omitted unless the function of the member is changed.

図３（ａ）（ｂ）（ｃ）から明らかなように、 本実施例３に係る船体外板付アノード取付構造は、上記実施例１に係る船体外板付アノード取付構造と実施例２に係る船体外板付アノード取付構造の組み合わせに係る構造であり、船体外板１０１内にレセス２を設け、当該レセス２内にアノード１を配置し、さらに、当該レセス２の開口面に前記アノードカバー６を設けたアノード構造のものであり、具体的には、前記船体外板１０１の所定箇所に所定大きさの前記レセス２を設け、当該レセス２内に船体内部から前記ハンドル５、５等で押し出し可能な前記アノード１を設け、かつ、前記レセス２の開口面には、前記船体外板１０１と面一となる前記アノードカバー穴９、９・・が開口された前記アノードカバー６を設けたものである。   As is clear from FIGS. 3A, 3B, and 3C, the anode mounting structure with a hull outer plate according to the third embodiment includes the anode mounting structure with a hull outer plate according to the first embodiment and the hull according to the second embodiment. This is a structure related to a combination of an anode mounting structure with an outer plate, a recess 2 is provided in the hull outer plate 101, an anode 1 is disposed in the recess 2, and an anode cover 6 is provided on the opening surface of the recess 2. Specifically, the recess 2 having a predetermined size is provided at a predetermined position of the hull outer plate 101 and can be pushed out from the inside of the hull with the handles 5, 5, etc. The anode 1 is provided, and the anode cover 6 in which the anode cover holes 9, 9... That are flush with the hull outer plate 101 are provided on the opening surface of the recess 2. .

本実施例３に係る船体外板付アノード取付構造においても、その取付位置は、上述する実施例１に係る船体外板付アノード取付構造及び実施例２に係る船体外板付アノード取付構造に準じて配置される。
また、前記アノードカバー６のアノードカバー穴９の数及び各穴９の大きさ、形状等も上記実施例２に係る船体外板付アノード取付構造に準ずる。すわわち、前記アノードカバー６に設けられるアノードカバー穴９の数及び面積は、前記アノードカバー６の表面積の３０分の１程度とし、１つのアノードカバー穴９の大きさを前記アノードカバー６の表面積の３０分の１よりも小さくするのであれば、前記アノードカバー穴９の数を増やしたりすることが可能である。 Also in the anode mounting structure with a hull outer plate according to the third embodiment, the mounting position is arranged in accordance with the anode mounting structure with a hull outer plate according to the first embodiment and the anode mounting structure with a hull outer plate according to the second embodiment. The
The number of anode cover holes 9 of the anode cover 6 and the size and shape of each hole 9 are also in accordance with the anode mounting structure with a hull outer plate according to the second embodiment. That is, the number and area of the anode cover holes 9 provided in the anode cover 6 are about 1/30 of the surface area of the anode cover 6, and the size of one anode cover hole 9 is the size of the anode cover 6. If the surface area is made smaller than 1/30 of the surface area, the number of the anode cover holes 9 can be increased.

本発明は、船体外板に取り付けるアノードの取付構造に利用される。   The present invention is used for an anode mounting structure that is mounted on a hull skin.

１ アノード
２ レセス
３、３ ネジ状支持棒
４、４ 水密パッキン
５、５ ハンドル
６ アノードカバー
７、７ アノードカバー受け
８、８ 留具
９、９・・ アノードカバー穴
１００ 船体
１０１ 船体外板
１０２ アノード
１０３ 喫水線
１０４ 居住区
２０１ 船尾船体
２０３ アノード
２０４ 開口
２０５ ボックスプレート
２０６ 緩衝材
２０７ レセス
DESCRIPTION OF SYMBOLS 1 Anode 2 Recess 3, 3 Threaded support rod 4, 4 Watertight packing 5, 5 Handle 6 Anode cover 7, 7 Anode cover receiver 8, 8 Fastener 9, 9, ... Anode cover hole 100 Hull 101 Hull outer plate 102 Anode 103 water line 104 residential area 201 stern hull 203 anode 204 opening 205 box plate 206 cushioning material 207 recess

Claims (4)

船舶船体外板の適宜の箇所に防食アノードを配置するレセスを設け、前記アノードの表面を前記船体外板と面一又はそれより低い適宜の位置とし、かつ、前記レセスと前記アノードとの間に周囲の水流が流れ込む間隙を設け、前記アノードを船体内から押し出し可能にし、船舶の航海速力の低下あるいは主機燃費の計算結果に基づいて前記アノードの船体内からの押し出し量が決定したことを特徴とする船体外板付アノード取付構造。 A recess for disposing the anticorrosion anode is provided at an appropriate location on the ship hull outer plate, the surface of the anode is set to an appropriate position on or below the hull outer plate, and between the recess and the anode. It is characterized in that a gap through which a surrounding water flow flows is provided, the anode can be pushed out from the hull, and the push-out amount of the anode from the hull is determined based on a decrease in the navigation speed of the ship or a calculation result of main engine fuel consumption. An anode mounting structure with a hull skin. 船舶船体外板の適宜の箇所に防食アノードを配置するレセスを設け、当該レセス開口面に複数の開口を有するアノードカバーを前記船体外板と面一に設けたことを特徴とする請求項１に記載の船体外板付アノード取付構造。 Provided recess to place the anti-corrosion anodes appropriate position of the ship ship outside plate, an anode cover having a plurality of openings in said recesses opening surface to claim 1, characterized in that provided on the hull flush The anode mounting structure with a hull outer plate as described . 前記レセスは、船舶のプロペラ近傍の船尾部に配置したことを特徴とする請求項１又は２に記載の船体外板付アノード取付構造。 The recess is hull fitted with an anode mounting structure according to claim 1 or 2, characterized in that arranged in the stern section of the propeller vicinity of the ship. 前記アノードカバーに設ける複数の開口のうちの一つの開口の大きさを前記アノードカバーの表面積の３０分の１よりも小さくしたことを特徴とする請求項２に記載の船体外板付アノード取付構造。   The anode mounting structure with a hull outer plate according to claim 2, wherein the size of one of the plurality of openings provided in the anode cover is smaller than 1/30 of the surface area of the anode cover.
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