JP3145390B2 - Conductive film for seawater electrolytic antifouling equipment - Google Patents
Conductive film for seawater electrolytic antifouling equipmentInfo
- Publication number
- JP3145390B2 JP3145390B2 JP21663390A JP21663390A JP3145390B2 JP 3145390 B2 JP3145390 B2 JP 3145390B2 JP 21663390 A JP21663390 A JP 21663390A JP 21663390 A JP21663390 A JP 21663390A JP 3145390 B2 JP3145390 B2 JP 3145390B2
- Authority
- JP
- Japan
- Prior art keywords
- conductive film
- conductive
- film
- seawater
- insulating coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は船舶、海洋構造物等海水接触構造物の海水電
解式防汚装置の導電膜に関する。Description: TECHNICAL FIELD The present invention relates to a conductive film for a seawater electrolytic antifouling device for a seawater contact structure such as a ship or a marine structure.
船舶、海洋構造物等海水接触構造物の防汚手段として
は、従来、構造物の接水部分に防汚塗料を塗装する手段
が一般的に採用されている。Conventionally, as an antifouling means for a seawater contacting structure such as a ship or an offshore structure, means for applying an antifouling paint to a water-contacting portion of the structure has been generally adopted.
しかしながら、このような手段では、次のような欠点
がある。However, such means have the following disadvantages.
（１）防汚塗料の防汚成分溶出速度を調節することがで
きないので、季節、海流、水質変化等に自在に対応する
ことができない。(1) The antifouling component elution rate of the antifouling paint cannot be adjusted, so that it is not possible to freely respond to seasons, ocean currents, changes in water quality, and the like.
（２）防汚塗料中の毒物含有量に限度があるので、約２
年ごとに塗り替え作業が必要である。(2) Since the amount of toxic substances in the antifouling paint is limited, about 2
Repainting work is required every year.
そこで本出願人は、さきに、特願昭61−248896号をも
って、第３図の模式図に示すように、海水01に接する構
造物の外板を構成する鋼板02に、エポキシ樹脂等の絶縁
塗膜03と、カーボン粉等を有機質バインダーに混合した
導電塗膜04を塗り重ね、導電塗膜04と海水01中に別置さ
れた鋼等からなる電気伝導体05との間に、直流電源06に
より導電塗膜04を（＋）に電気伝導体05を（−）にして
通電し、導電塗膜04上に、 2Cl-→Cl2＋2e の作用で塩素を発生させる装置を提案した。Therefore, the applicant of the present application has previously filed Japanese Patent Application No. 61-248896, as shown in the schematic diagram of FIG. 3, to attach an insulating material such as epoxy resin to a steel plate 02 constituting an outer plate of a structure in contact with seawater 01. A coating film 03 and a conductive coating film 04 in which carbon powder or the like is mixed with an organic binder are overcoated, and a DC power supply is applied between the conductive coating film 04 and an electric conductor 05 made of steel or the like separately placed in seawater 01. The present inventors proposed a device for generating a chlorine on the conductive coating 04 by the action of 2Cl − → Cl 2 + 2e by applying an electric current by setting the conductive coating 04 to (+) and the electric conductor 05 to (−) by 06.
ところが、このような装置には、次のような不具合が
あることが判明した。However, it has been found that such a device has the following problems.
（１）海水01中に流出する電流密度をある一定値以上に
保持する必要があるが、導電塗膜04の消耗による抵抗上
昇のため通電端06a近くに電流密度が集中し、防汚有効
範囲が狭くなる。(1) It is necessary to maintain the current density flowing into the seawater 01 at a certain value or more, but the current density concentrates near the current-carrying end 06a due to the increase in resistance due to the consumption of the conductive coating film 04, and the effective antifouling area Becomes narrower.
（２）電流密度の均一化には低抵抗の導電塗膜04が必要
であるが、そのためにはそれに多量の導電粉を混入する
必要があり製造が困難である。(2) To make the current density uniform, a low-resistance conductive coating film 04 is required, but for this purpose, a large amount of conductive powder must be mixed into the conductive coating film 04, which makes production difficult.
それ故、本出願人は、更に第４図の模式図に示すよう
な装置を特願昭63−287190号として提案した。Therefore, the present applicant has further proposed an apparatus as shown in the schematic diagram of FIG. 4 as Japanese Patent Application No. 63-287190.
すなわち、同図において、第３図と同一の符番はそれ
ぞれ同図と同一の部材を示し、07は絶縁塗膜03の外側を
被覆する比抵抗の小さい金属又は金属酸化物の薄板、溶
射膜、融着膜又は蒸着膜からなり、通電端08が設けられ
ている第１の導電膜で、比抵抗の小さい金属としてはニ
ッケル、銅、チタン、アルミニウム、ニオブ等、金属酸
化物としてはマグネタイト、二酸化マンガン等がそれぞ
れ使用できる。That is, in the same figure, the same reference numerals as those in FIG. 3 denote the same members as those in the same figure, and 07 denotes a thin plate of metal or metal oxide having a small specific resistance covering the outside of the insulating coating film 03, and a sprayed film. A first conductive film made of a fusion film or a vapor-deposited film, and provided with a current-carrying end 08; nickel, copper, titanium, aluminum, niobium or the like as a metal having a low specific resistance; magnetite as a metal oxide; Manganese dioxide or the like can be used.
09は更に第１の導電膜07の外側を被覆する耐酸化性不
溶性物質と有機バインダーとからなる第２の導電塗膜
で、耐酸化性不溶性物質としてはグラファイト、カーボ
ンブラック、マグネタイト、白金等が使用でき、有機バ
インダーとしてはエポキシ樹脂、ビニール樹脂、不飽和
ポリエステル樹脂等が使用できる。またこの第２の導電
塗膜09は第１の導電膜07に比べ電気抵抗が大きくなって
いる。Reference numeral 09 denotes a second conductive coating made of an oxidation-resistant insoluble substance and an organic binder which coats the outside of the first conductive film 07. Examples of the oxidation-resistant insoluble substance include graphite, carbon black, magnetite, and platinum. Epoxy resins, vinyl resins, unsaturated polyester resins and the like can be used as the organic binder. Further, the second conductive coating film 09 has a higher electric resistance than the first conductive film 07.
010は第２の導電塗膜09と対向して海水01中に設置さ
れた鉄、銅又は炭素等からなる陰極、011は第１の導電
膜07の通電端08と陰極010との間に設置され第１の導電
膜07から第２の導電塗膜09を通して陰極010の方向へ直
流を通電する直流電源である。012は鋼板02と陰極010と
を接続するリード線である。010 is a cathode made of iron, copper, carbon or the like placed in seawater 01 facing the second conductive film 09, and 011 is placed between the current-carrying end 08 of the first conductive film 07 and the cathode 010. This is a DC power supply that supplies a DC current from the first conductive film 07 to the cathode 010 through the second conductive film 09. 012 is a lead wire connecting the steel plate 02 and the cathode 010.
このような装置において、第１の導電膜07から、第２
の導電塗膜09を通して、海水01中の陰極010の方向へ直
流電流を流出させると、第２の導電塗膜09の表面は濃い
塩素の膜に覆われ、海洋生物がその表面へ付着すること
を防止する。In such an apparatus, the first conductive film 07
When a direct current is caused to flow in the direction of the cathode 010 in the seawater 01 through the conductive coating 09 of the seawater, the surface of the second conductive coating 09 is covered with a thick chlorine film, and marine organisms adhere to the surface. To prevent
この際の直流電流は、第１の導電膜07に設けられてい
る通電端08から、電気抵抗の小さい第１の導電膜07のベ
ース電流を通して第２の導電塗膜09の厚さ方向に供給さ
れることになり、従って第２の導電塗膜09が消耗しても
通電端08近くに電流密度が集中するということはなく、
安定した均一な電流密度分布が長期にわたって維持で
き、ひいては少ない消費電力で高性能な防汚効果を奏す
ることができる。The DC current at this time is supplied in the thickness direction of the second conductive film 09 from the current-carrying end 08 provided in the first conductive film 07 through the base current of the first conductive film 07 having a small electric resistance. Therefore, even if the second conductive coating 09 is consumed, the current density does not concentrate near the conducting end 08,
A stable and uniform current density distribution can be maintained over a long period of time, and a high-performance antifouling effect can be achieved with low power consumption.
なお、リード線012により鋼板02を（−）電位に、第
１の導電膜07及び第２の導電塗膜09を（＋）電位になる
ようにしているので、第１の導電膜07、第２の導電塗膜
09が局部内に損傷破壊し鋼板02に露出部が生じたときに
は、第１の導電膜07、第２の導電塗膜09から流出した直
流電流の一部が鋼板02の露出部に流入し、鋼板02から直
流電源011の（−）極に帰還され鋼板02の腐食を防止す
る。Since the lead wire 012 sets the steel plate 02 to a (-) potential and the first conductive film 07 and the second conductive coating film 09 to a (+) potential, the first conductive film 07 and the 2 conductive coating
When 09 is damaged and destroyed in the local area and an exposed portion is formed on the steel plate 02, a part of the DC current flowing out of the first conductive film 07 and the second conductive coating film 09 flows into the exposed portion of the steel plate 02, The steel plate 02 is fed back to the (-) pole of the DC power supply 011 to prevent corrosion of the steel plate 02.
しかしながら、その後の研究によりこのような装置に
おいても、下記のような問題があることが判明した。However, subsequent research has revealed that such a device also has the following problems.
（１）第１の導電膜07は原料が高価なので、それを構造
物全体に施工すると費用が嵩む。(1) Since the first conductive film 07 is made of an expensive raw material, applying it to the entire structure increases the cost.
（２）第１の導電膜07は特に溶射により絶縁塗膜03上に
施工した場合、残留応力が発生するので、溶射膜の剥離
等の欠陥が生じ易い。(2) When the first conductive film 07 is applied on the insulating coating film 03 by thermal spraying in particular, residual stress is generated, and thus defects such as peeling of the thermal sprayed film are likely to occur.
そこで本出願人は、最近第５図の模式図及び第６図の
水平断面図に示すような装置を特願平01−13973号とし
て提案した。Therefore, the present applicant has recently proposed a device as shown in the schematic diagram of FIG. 5 and the horizontal sectional view of FIG. 6 as Japanese Patent Application No. 01-13973.
すなわち、同図において、第４図と同一の符番はそれ
ぞれ同図と同一の部材を示し、013は絶縁塗膜03上に複
数の平行帯状に布設されそれぞれ一端が帯状通電膜013a
を介して通電端08に接続された第１の導電膜で、その材
料は上記第１の導電膜07のそれと同一である。That is, in the same figure, the same reference numerals as those in FIG. 4 denote the same members as those in the same figure, and 013 is laid in a plurality of parallel bands on the insulating coating film 03, and one end of each is a band-like conductive film 013a.
The first conductive film is connected to the current-carrying end 08 through the first conductive film 07, and is made of the same material as that of the first conductive film 07.
014は絶縁塗膜03、通電膜013a及び第１の導電膜013の
外側と被覆する第２の導電塗膜で、その材料は上記第２
の導電塗膜09のそれと同一である。014 is a second conductive coating which covers the outside of the insulating coating 03, the conductive film 013a and the first conductive film 013, and the material thereof is the second conductive coating.
Is the same as that of the conductive coating film 09 of FIG.
このような装置において、第１の導電膜013は複数の
平行帯状に布設されているので、全面塗装の第１の導電
膜07に比べて材料の物量が数分の１に節約できる。ま
た、第１の導電膜013は帯状なので、各巾が小さく、そ
れぞれの両側縁の残留応力が減少する。更に、第２の導
電塗膜014には導電性があるので、第１の導電膜013が全
面塗装されなくても第２の導電塗膜014の全面に電力を
供給することができる。In such an apparatus, since the first conductive film 013 is laid in a plurality of parallel strips, the amount of material can be reduced to a fraction of that of the first conductive film 07 coated on the entire surface. Further, since the first conductive film 013 has a band shape, each width is small, and the residual stress on each side edge is reduced. Further, since the second conductive film 014 is conductive, power can be supplied to the entire surface of the second conductive film 014 even if the first conductive film 013 is not entirely coated.
しかしながら、このような装置においても、絶縁塗膜
03上において帯状通電膜013aに複数の平行帯状の第１の
導電膜103の一端をそれぞれ直交状態で接合する必要が
あるので、その作業が面倒で、従って工数が嵩み、経済
性が低下する欠点がある。However, even in such an apparatus, the insulating coating
Since it is necessary to join one end of each of a plurality of parallel strip-shaped first conductive films 103 to the strip-shaped conductive film 013a on the 03 in an orthogonal state, the work is troublesome, so the number of steps is increased, and the economic efficiency is reduced. There are drawbacks.
本発明は、このような事情に鑑みて提案されたもの
で、導電膜の消耗による抵抗上昇がなく、かつ導電膜の
膜厚のばらつきによる電流分布の不均一がなく、また導
電膜の施工が容易な、従って防汚性能及び経済性に優れ
た海水電解式防汚装置の導電膜を提供することを目的と
する。The present invention has been proposed in view of such circumstances, there is no increase in resistance due to exhaustion of the conductive film, there is no uneven current distribution due to variations in the thickness of the conductive film, and the application of the conductive film An object of the present invention is to provide a conductive film for a seawater electrolytic type antifouling device that is easy and therefore excellent in antifouling performance and economy.
そのために、本発明の海水電解式防汚装置の導電膜
は、海水接触構造物の接水面を被覆する電気絶縁塗膜上
に付設される海水電解式防汚装置の導電膜において、上
記電気絶縁塗膜上に帯状に布設された通電膜と、上記電
気絶縁塗膜上で上記通電膜に交叉する方向に互いに平行
に布設され各一端がそれぞれ上記通電膜の近傍に達する
複数の帯状の第１の導電膜と、上記電気絶縁塗膜、上記
通電膜及び上記各第１の導電膜の外側を被覆し導電顔料
が混入され上記第１の導電膜より電気抵抗の大きい第２
の導電塗膜とを備えたことを特徴とする。For this purpose, the conductive film of the seawater electrolytic antifouling device of the present invention is the conductive film of the seawater electrolytic antifouling device provided on the electric insulating coating film covering the water contact surface of the seawater contact structure. A conductive film laid in a strip shape on the coating film; and a plurality of first strip-shaped conductive films laid on the electrical insulating coating film in parallel with each other in a direction crossing the conductive film and each end reaching the vicinity of the conductive film. And a second conductive film that covers the outside of the electric insulating coating film, the conductive film, and each of the first conductive films, is mixed with a conductive pigment, and has a higher electric resistance than the first conductive film.
And a conductive coating film.
電気絶縁塗膜上に導電性の大きい通電膜が帯状に付設
されているので、第２の導電塗膜の消耗による抵抗上昇
がなくなる。Since the conductive film having high conductivity is provided on the electric insulating coating film in a strip shape, the resistance increase due to the consumption of the second conductive coating film is eliminated.
また、上記電気絶縁塗膜上に上記通電膜に一端が若干
離されて平行帯状の複数の第１の導電膜を付設するの
で、上記通電膜、上記第１の導電膜の付設作業がそれぞ
れ独立して単純な形状で行うことができ、従って作業工
数が減少するとともに、上記第１の導電膜の電流分布が
均一化する。In addition, since a plurality of parallel conductive strips are provided on the electric insulating coating film, one end of which is slightly separated from the conductive film, the work of attaching the conductive film and the first conductive film is independent of each other. Thus, the process can be performed with a simple shape, so that the number of work steps is reduced, and the current distribution of the first conductive film is made uniform.
更に、上記電気絶縁塗膜、上記通電膜及び上記各第１
の導電膜の外側を被覆し、導電顔料が混入され上記第１
の導電膜より電気抵抗の大きい第２の導電塗膜が施工さ
れているので、上記通電膜から第１の導電膜の膜端との
間の狭巾の上記第２の導電塗膜を経て上記第１の導電膜
へ電流を供給することができる。Further, the electric insulating coating, the conductive film, and the first
Of the first conductive film is coated with a conductive pigment.
Since the second conductive coating having a higher electric resistance than that of the conductive film is applied, the second conductive coating having a smaller width between the conductive film and the end of the first conductive film is passed through the second conductive coating. A current can be supplied to the first conductive film.
本発明の一実施例を図面について説明すると、第３〜
６図と同一の符番はそれぞれ同図と同一の部材を示し、
第１図の断面図及び第２図の水平断面図において、１は
絶縁塗膜03上に平行帯状にそれぞれ接着剤を介して付設
された複数の第１の導電膜で、その材料は上記第１の導
電膜07のそれと同一である。２は絶縁塗膜03上に各第１
の導電膜１の一端とそれぞれ若干離して直交する方向に
接着剤を介して付設された帯状通電膜で、その材料は第
１の導電膜１のそれと同一である。One embodiment of the present invention will be described with reference to the drawings.
6 indicate the same members as those in FIG.
In the cross-sectional view of FIG. 1 and the horizontal cross-sectional view of FIG. 2, reference numeral 1 denotes a plurality of first conductive films provided in parallel bands on an insulating coating film 03 via an adhesive. It is the same as that of one conductive film 07. 2 is the first on the insulating coating 03
The conductive film 1 is a band-like conductive film provided with an adhesive in a direction slightly separated from and perpendicular to one end of the conductive film 1, and is made of the same material as that of the first conductive film 1.
３は帯状通電膜２と図示省略の直流電源装置とを接続
する導線、４は絶縁塗膜03、第２の導電膜１及び通電膜
２の外側を被覆する第２の導電塗膜で、その材料は上記
第２の導電塗膜014と同一であるが、導電顔料の添加量
は、容積比で30％以上とする。30％未満では、第２の導
電塗膜の表面の劣化が生じ、長期の耐久性が得られない
ためである。Reference numeral 3 denotes a conductive wire connecting the belt-shaped conductive film 2 and a DC power supply device (not shown). Reference numeral 4 denotes a second conductive coating film which covers the outside of the insulating coating 03, the second conductive film 1, and the conductive film 2. The material is the same as that of the second conductive coating 014, but the amount of the conductive pigment to be added is 30% or more in volume ratio. If it is less than 30%, the surface of the second conductive coating film is deteriorated, and long-term durability cannot be obtained.
このような構造において、導線３、通電膜２を経て供
給された電流は、第２の導電塗膜４を経て各第１の導電
膜１に均一に流れていく。その際、第２の導電塗膜４の
抵抗は第１の導電膜１のそれの２桁以上大きいので、第
１の導電膜１と通電膜２とはなるべく近接しておくこと
が好ましい。In such a structure, the current supplied through the conductive wire 3 and the conductive film 2 flows uniformly through the first conductive film 1 through the second conductive coating film 4. At this time, since the resistance of the second conductive film 4 is larger than that of the first conductive film 2 by two digits or more, it is preferable that the first conductive film 1 and the conductive film 2 be as close as possible.
なお、本発明構造の効果を確めるために、巾20cm、長
さ10mのアクリル板の一端に巾1cm、厚さ1mmの銅板製通
電端が接続され、央部に端辺に平行に巾5cm、厚さ75μ
のAlが付設され、それ等の上にグラファイト顔料を容
量比で50％含むビニール系導電塗料を500μ 塗装した
ものを港内海水水面下1mの水位に浸漬し、これに巾5c
m、厚さ3mm、長さ10 の鋼板を陰極として30cm離して対
向させて配置して1A/m2で連続通電した結果３カ月後に
おいて、海洋生物の付着は全く認められなかったが、ア
クリル板の一端に通電端が接続されビニール系導電塗料
が塗装されただけの比較系のものにおいては、通電端か
ら1mより先には海洋生物の付着が認められた。In order to confirm the effects of the structure of the present invention, an energizing end made of a copper plate having a width of 1 cm and a thickness of 1 mm is connected to one end of an acrylic plate having a width of 20 cm and a length of 10 m. 5cm, thickness 75μ
Al is attached, and on top of them, 500μ of vinyl-based conductive paint containing 50% by volume of graphite pigment is painted and immersed in the water level 1m below the seawater level in the port, and the width 5c
m, thickness 3 mm, length 10 steel sheets as cathodes were placed 30 cm apart and facing each other, and after continuous energization at 1 A / m 2 , no adhesion of marine organisms was observed after 3 months. In the comparative system in which the current-carrying end was connected to one end of the plate and only the vinyl-based conductive paint was applied, adhesion of marine organisms was recognized more than 1 m from the current-carrying end.
このような構造によれば、下記効果が奏せられる。 According to such a structure, the following effects can be obtained.
（１）電気絶縁塗膜上に導電性の大きい通電膜が帯状に
布設されているので、第２の導電塗膜の消耗による抵抗
上昇がなく、従って耐久性が大で経済性が向上する。(1) Since the conductive film having high conductivity is laid in a strip shape on the electric insulating coating film, there is no increase in resistance due to the consumption of the second conductive coating film, so that the durability is large and the economy is improved.
（２）電気絶縁塗膜上の通電膜に一端がそれぞれ若干離
して平行帯状の複数の第１の導電膜が布設されるので、
通電膜、第１の導電膜の付設作業がそれぞれ独立して単
純な形状で行うことができ、従って作業工数が減少し経
済性が向上するとともに、第１の導電膜の電流分布が均
一化でき、従って防汚性能が向上する。(2) Since a plurality of parallel conductive strip-shaped first conductive films are laid on the electrically conductive film on the electric insulating coating film, one ends of the conductive films are slightly apart from each other.
The work of applying the conductive film and the first conductive film can be performed independently and in a simple shape. Therefore, the number of work steps can be reduced, the economic efficiency can be improved, and the current distribution of the first conductive film can be made uniform. Therefore, the antifouling performance is improved.
（３）電気絶縁塗膜、通電膜及び上記各第１の導電膜の
外側を被覆し、導電顔料が容積比で30％以上混入され、
上記第１の導電膜より電気抵抗の大きい第２の導電塗膜
が施工されているので、通電膜から第２の導電塗膜を経
て第１の導電膜へ電流が伝わり、従って電流分布が均一
化し、防汚性能が向上する。(3) covering the outside of the electric insulating coating, the conductive film and the first conductive film, and a conductive pigment is mixed therein by 30% or more by volume ratio;
Since the second conductive film having a higher electric resistance than the first conductive film is applied, a current is transmitted from the conductive film to the first conductive film via the second conductive film, so that the current distribution is uniform. And the antifouling performance is improved.
要するに本発明の海水電解式防汚装置の導電膜によれ
ば、海水接触構造物の接水面を被覆する電気絶縁塗膜上
に付設される海水電解式防汚装置の導電膜において、上
記電気絶縁塗膜上に帯状に布設された通電膜と、上記電
気絶縁塗膜上で上記通電膜に交叉する方向に互いに平行
に付設され各一端がそれぞれ上記通電膜の近傍に達する
複数の帯状の第１の導電膜と、上記電気絶縁塗膜、上記
通電膜及び上記各第１の導電膜の外側を被覆し導電顔料
が混入され上記第１の導電膜より電気抵抗の大きい第２
の導電塗膜とを備えているので、導電膜の消耗による抵
抗上昇がなく、かつ導電膜の膜厚のばらつきによる電流
分布の不均一がなく、また導電膜の施工が容易な、従っ
て防汚性能及び経済性に優れた海水電解式防汚装置の導
電膜を得るから、本発明は産業上極めて有益なものであ
る。In short, according to the conductive film of the seawater electrolytic antifouling device of the present invention, in the conductive film of the seawater electrolytic antifouling device provided on the electric insulating coating film that covers the water contact surface of the seawater contact structure, A current-carrying film laid on the coating film in a strip shape; and a plurality of strip-shaped first films provided on the electric insulating coating film in parallel with each other in a direction crossing the current-carrying film and having one end each reaching the vicinity of the current-carrying film. And a second conductive film that covers the outside of the electric insulating coating film, the conductive film, and each of the first conductive films, is mixed with a conductive pigment, and has a higher electric resistance than the first conductive film.
Since the conductive coating film is provided, there is no increase in resistance due to consumption of the conductive film, there is no uneven current distribution due to variation in the thickness of the conductive film, and the conductive film can be easily applied, and therefore, has antifouling properties. The present invention is extremely useful industrially because a conductive film of a seawater electrolytic type antifouling device excellent in performance and economy can be obtained.
第１図は本発明の一実施例を示す断面図、第２図は第１
図のII−IIに沿った水平断面図である。 第３図は従来の海水に接する構造物の防汚装置の断面を
示す模式図、第４図は従来の異なる海水に接する構造物
の防汚装置の断面を示す模式図、第５図は本出願人がさ
きに提案した異なる海水に接する構造物の防汚装置を示
す断面図、第６図は本出願人がさきに提案した異なる海
水に接する構造物の防汚装置を示す水平断面図である。 〔符号の説明〕 １……第１の導電膜 ２……導電膜 ３……導線 ４……第２の導電塗膜 02……鋼板 03……絶縁塗膜FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG.
FIG. 2 is a horizontal sectional view taken along the line II-II in FIG. FIG. 3 is a schematic diagram showing a cross section of a conventional antifouling device for a structure in contact with seawater, FIG. 4 is a schematic diagram showing a cross section of a conventional antifouling device for a structure in contact with different seawater, and FIG. FIG. 6 is a cross-sectional view showing an antifouling device for a structure in contact with different seawater proposed by the applicant earlier, and FIG. 6 is a horizontal sectional view showing an antifouling device for a structure in contact with different seawater proposed earlier by the present applicant. is there. [Explanation of Symbols] 1... First conductive film 2... Conductive film 3... Conducting wire 4... Second conductive coating film 02.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 植田 健二 長崎県長崎市飽の浦町５番７号 菱興ビ ル別館５階 長菱エンジニアリング株式 会社内 (72)発明者 山崎 弘 長崎県長崎市飽の浦町５番７号 菱興ビ ル別館５階 長菱エンジニアリング株式 会社内 (72)発明者 堀口 勉 長崎県長崎市飽の浦町５番７号 菱興ビ ル別館５階 長菱エンジニアリング株式 会社内 (56)参考文献 特開 平４−95597（ＪＰ，Ａ) 特開 平２−200908（ＪＰ，Ａ) 特開 昭63−101464（ＪＰ，Ａ) 特開 平４−8691（ＪＰ，Ａ) 特開 平２−225574（ＪＰ，Ａ) ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenji Ueda 5-7, Akunoura-cho, Nagasaki-shi, Nagasaki 5th floor of Ryoko Building Annex Building Nagaishi Engineering Co., Ltd. (72) Inventor Hiroshi Yamazaki, Akunoura-cho, Nagasaki-shi, Nagasaki 5-7 Ryoko Building Annex 5F Nagaishi Engineering Co., Ltd. (72) Inventor Tsutomu Horiguchi 5-7 Akinouracho Nagasaki City, Nagasaki Prefecture Ryoko Building Annex 5F Nagaishi Engineering Co., Ltd. (56) JP-A-4-95597 (JP, A) JP-A-2-200908 (JP, A) JP-A-63-101464 (JP, A) JP-A-4-8691 (JP, A) JP-A-2 −225574 (JP, A)
Claims (1)
縁塗膜上に付設される海水電解式防汚装置の導電膜にお
いて、上記電気絶縁塗膜上に帯状に布設された通電膜
と、上記電気絶縁塗膜上で上記通電膜に交叉する方向に
互いに平行に布設され各一端がそれぞれ上記通電膜の近
傍に達する複数の帯状の第１の導電膜と、上記電気絶縁
塗膜、上記通電膜及び上記各第１の導電膜の外側を被覆
し導電顔料が混入され上記第１の導電膜より電気抵抗の
大きい第２の導電塗膜とを備えたことを特徴とする、海
水電解式防汚装置の導電膜。1. A conductive film for a seawater electrolytic type antifouling device provided on an electric insulating coating film covering a water contact surface of a seawater contact structure, comprising: a conductive film laid in a strip shape on the electric insulating coating film; A plurality of strip-shaped first conductive films laid on the electric insulating coating film in parallel with each other in a direction crossing the conductive film, and one end of each of the first conductive films reaching the vicinity of the conductive film; A seawater electrolysis type, comprising: a current-carrying film; and a second conductive film which covers the outside of each of the first conductive films and is mixed with a conductive pigment and has higher electric resistance than the first conductive film. Conductive film for antifouling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21663390A JP3145390B2 (en) | 1990-08-17 | 1990-08-17 | Conductive film for seawater electrolytic antifouling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21663390A JP3145390B2 (en) | 1990-08-17 | 1990-08-17 | Conductive film for seawater electrolytic antifouling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04100794A JPH04100794A (en) | 1992-04-02 |
| JP3145390B2 true JP3145390B2 (en) | 2001-03-12 |
Family
ID=16691494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21663390A Expired - Fee Related JP3145390B2 (en) | 1990-08-17 | 1990-08-17 | Conductive film for seawater electrolytic antifouling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3145390B2 (en) |
-
1990
- 1990-08-17 JP JP21663390A patent/JP3145390B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04100794A (en) | 1992-04-02 |
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