JPH03132495A - Contamination preventive device for structure in contact with sea water - Google Patents
Contamination preventive device for structure in contact with sea waterInfo
- Publication number
- JPH03132495A JPH03132495A JP27251189A JP27251189A JPH03132495A JP H03132495 A JPH03132495 A JP H03132495A JP 27251189 A JP27251189 A JP 27251189A JP 27251189 A JP27251189 A JP 27251189A JP H03132495 A JPH03132495 A JP H03132495A
- Authority
- JP
- Japan
- Prior art keywords
- conductive film
- film
- current
- conductive
- contact
- 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.)
- Pending
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 19
- 238000011109 contamination Methods 0.000 title abstract 2
- 230000003449 preventive effect Effects 0.000 title 1
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 6
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 230000004927 fusion Effects 0.000 claims abstract description 4
- 230000003373 anti-fouling effect Effects 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 abstract 12
- 239000012789 electroconductive film Substances 0.000 abstract 2
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000001465 metallisation Methods 0.000 abstract 1
- 230000003405 preventing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001361 White metal Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- -1 etc. Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000010969 white metal Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は船舶、海洋構造物等海水に接する構造物の防汚
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antifouling device for structures in contact with seawater, such as ships and marine structures.
船舶、海洋構造物等海水に接する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。BACKGROUND ART Conventionally, as antifouling means for structures that come into contact with seawater, such as ships and offshore structures, a method of applying an antifouling paint to the parts of the structure that come in contact with water 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 drawbacks.
（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) Since the elution rate of the antifouling component of the antifouling paint cannot be adjusted, it is not possible to freely respond to changes in seasons, ocean currents, water quality, etc.
（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 there is a limit to the amount of toxic substances contained in antifouling paints,
Repainting is required approximately every two years.
そこで本出願人は、さきに、特願昭６１２４７０３２号
、特願昭６１−２４８８９７号をもって、第３図模式図
に示すように、海水０１に接する構造物の外板を構成す
る綱板ｏ２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とそれに対向して海水中に設置
された綱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 ２ Ｃ１−＝
Ｃｊ！２４− ’ｌ ｅ の作用で塩素を発生させる
装置を提案した。Therefore, the present applicant previously filed Japanese Patent Application No. 61247032 and Japanese Patent Application No. 61-248897 to construct a cable plate o2 constituting the outer panel of a structure in contact with seawater 01, as shown in the schematic diagram in Figure 3. , an electrical conductor consisting of an insulating coating film 03 made of epoxy resin or the like and a conductive coating film 04 made of an organic binder mixed with carbon powder or the like is applied, and the conductive coating film 04 and a rope or the like placed opposite to it in seawater are formed. 05, the conductive coating film 04 is set to (+) and the electric conductor 05 is set to (-) using a DC power supply 06, and electricity is applied to the conductive coating film 04 so that 2 C1-=
Cj! 24- We proposed a device that generates chlorine by the action of 'le.
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 defects.
（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 above a certain value, but due to the increase in resistance due to wear of the conductive coating 04, the current density concentrates near the current-carrying end 06a, and the effective antifouling range becomes narrower.
（２） 導電塗膜０４の膜厚のばらつきにより電流密
度が異なり、性能の維持が困難である。(2) Current density varies due to variations in the thickness of the conductive coating film 04, making it difficult to maintain performance.
（３） 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、そのためには多量の導電粉を混入する
必要があり製造が困難である。(3) Low resistance conductive coating 04 for uniform current density
However, for this purpose, it is necessary to mix a large amount of conductive powder, which is difficult to manufacture.
そこで、本出願人は、さきに第４図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 previously proposed a device as shown in the schematic diagram of FIG. 4 in 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、ｏ７は絶縁塗膜０３の外側
を被覆する比抵抗の小さい金属、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
ニノゲル、銅、チタン、アルミニウム１ 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 numbers as in FIG. 3 indicate the same members as in the same figure, and o7 indicates a metal with low resistivity, a thin plate of metal oxide, or a sprayed film that covers the outside of the insulating coating 03. The first conductive film is made of a fused film or a vapor deposited film and is provided with a current-carrying end 08. Metals with low resistivity include Ninogel, copper, titanium, aluminum 1, niobium, etc., and metal oxides include magnetite, Manganese dioxide, etc. 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、白金属等が使用でき、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
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。09 is a second conductive film made of an oxidation-resistant insoluble substance and an organic binder that coats the outside of the first conductive film 07, and the oxidation-resistant insoluble substance includes graphite, carbon black, magnetite, white metal, etc. Epoxy resins, vinyl resins, unsaturated polyester resins, etc. can be used as organic binders. Further, this second conductive film 09 has a higher electrical resistance than the first conductive film 07.
０１０は第２の導電膜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
は綱板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, etc. that is placed in seawater 01 facing the second conductive film 09; 011 is a cathode that is placed between the current-carrying end 08 of the first conductive film 07 and the cathode 010; , is a DC power supply that supplies 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 rope 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 a device, when a direct current flows from the first conductive film 07 to the cathode 010 in the seawater 01 through the second conductive film 09, the surface of the second conductive film 09 becomes a thick chlorine film. to prevent marine life from attaching to its surface.
その際の直流電流は、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の導電膜０９が消耗し
ても通電端０８近（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。At that time, the direct current flows from the current-carrying end 08 provided on the first conductive film 07 to the first conductive film 07 with low electrical resistance.
Therefore, even if the second conductive film 09 is consumed, the current density will not be concentrated near the current-carrying end 08. A stable and uniform current density distribution can be maintained over a long period of time, and high-performance antifouling effects can be achieved with low power consumption.
しかしながら、その後の研究によりこのような装置では
第１の導電膜０７のｉｉｌ電端０８が構造物の上端面の
みに付設されたので、通電端０８付近の第１の導電膜０
７の電流密度が局部的に高くなるとともに材質が劣化し
て、導電膜が消失しそこから先に電流が流れず防汚作用
が生じな（なることが判明した。However, subsequent research revealed that in such a device, the IIL conductive end 08 of the first conductive film 07 was attached only to the upper end surface of the structure.
It was found that as the current density of No. 7 locally increased, the material deteriorated, the conductive film disappeared, and the current no longer flowed from there, resulting in no antifouling effect.
本発明は、このような事情に鑑みて提案されたもので、
第１の導電膜の通電端電流密度が過度に局部的に上昇せ
ず、従って４電膜の耐久性が大きく、かつ電力消費の少
ない経済的な海水に接する構造物の防汚装置を提供する
ことを目的とする。The present invention was proposed in view of these circumstances, and
To provide an economical antifouling device for a structure in contact with seawater in which the current density of the current-carrying end of a first conductive film does not locally increase excessively, the durability of the four-electrode film is high, and power consumption is low. The purpose is to
そのために本発明は船舶、海洋構造物等海水に接する構
造物の接水面を電気絶縁塗膜を介し被覆し比抵抗の小さ
い金属又は金属酸化物の薄板、ｆｆＩ射膜、蒸着膜又は
融着膜からなりそれに通電端が設けられている第１の導
電膜と、上記第１の導電膜の外側を′＋＆覆し耐酸化性
不溶性物質と有機バインダーとからなり上記第１の導電
膜より電気抵抗の大きい第２の導電膜と、上記第２のＲ
電膜に対向し鉄、銅又は炭素からなり海水中に設置され
た電気伝導体と、上記第１の導電膜と上記電気伝導体と
の間に設置され上記第１の導電膜から上記第２の導電膜
を通して上記電気伝導体方向に直流をｉＭ電する電源装
置とを具えてなる構造物の防汚装置において、上記第１
の導電膜の複数個所に上記通電端を設けることを特徴と
する。To this end, the present invention covers the water-contact surfaces of structures in contact with seawater, such as ships and offshore structures, with an electrically insulating coating film, which is a thin plate of metal or metal oxide with low specific resistance, an ffI film, a vapor deposited film, or a fused film. a first electrically conductive film comprising a conductive end and a conductive end; a large second conductive film and the second R
an electrical conductor made of iron, copper, or carbon and placed in seawater facing the electrical film; and a power supply device that supplies iM direct current in the direction of the electrical conductor through the conductive film of the structure, wherein the first
The conductive film is characterized in that the conductive ends are provided at a plurality of locations on the conductive film.
通電端が第１の導電膜の上端のみに限定されずその複数
個所に設けられるので、第１の導電膜内での電流密度が
ほぼ均一化されるとともに、電流密度平均値が減少する
。Since the current-carrying end is not limited to only the upper end of the first conductive film but is provided at a plurality of locations, the current density within the first conductive film is made substantially uniform, and the average value of the current density is reduced.
本発明を船体外板に適用した一実施例を図面について説
明すると、第３〜４図と同一の符番はそれぞれ同図と同
一の部材を示し、まず、第１図斜視図において、１は鋼
板で形成された船体外板、２．３は船体外板ｌの絶縁塗
膜０３上に溶射された第１の導電膜０７の上端、中間レ
ベルにそれぞれ設置された通電端、４は通電端２．３と
図示省略の直流電源の陽極とをそれぞれ接続するリード
線である。An embodiment in which the present invention is applied to a hull shell plate will be described with reference to the drawings. The same reference numerals as in Figs. 3 and 4 indicate the same members as in the same figures. First, in the perspective view of Fig. 1, 1 is A hull outer plate formed of a steel plate, 2.3 is a current-carrying end installed at the upper end and intermediate level of the first conductive film 07 sprayed on the insulating coating 03 of the hull outer board 1, and 4 is a current-carrying end. These are lead wires that connect 2.3 and the anode of a DC power supply (not shown), respectively.
このような装置において、直流電源の陽極からリード線
４を介して通電端２．３にそれぞれ電流を通ずると、通
電端２のみに電流を通じた場合に比べ、第１の導電膜０
７の央部にも通電端３が設置されているので、通電端２
の電流密度が過度に上昇せず、従って第１の導電膜０７
内における電流密度がほぼ均一化されるとともに、電力
消費量が減少する。In such a device, when a current is passed from the anode of the DC power supply to the current carrying ends 2 and 3 via the lead wire 4, the first conductive film 0
Since the current-carrying end 3 is also installed in the center of 7, the current-carrying end 2
Therefore, the current density of the first conductive film 07 does not increase excessively.
The current density within the circuit is approximately equalized, and the power consumption is reduced.
因みに、船体外板１の上端通電端２から下方への距離と
電流密度比との関係を調査したところ、第２図線図に示
す曲線５が得られた。ここで曲線６は通電端２のみによ
る場合を示す。Incidentally, when the relationship between the distance downward from the upper current-carrying end 2 of the hull outer plate 1 and the current density ratio was investigated, a curve 5 shown in the diagram of FIG. 2 was obtained. Here, curve 6 shows the case where only current-carrying end 2 is used.
これより、従来方式では通電端２付近で防汚に必要な電
流密度（同図鎖線７参照）の４倍程度の高電流密度とな
るが、本発明方式では２倍程度の低電流密度に抑えるこ
とができることが判明した。From this, in the conventional method, the current density is about four times the current density required for antifouling near the current-carrying end 2 (see chain line 7 in the same figure), but in the method of the present invention, the current density is reduced to a low current density about twice. It turns out that it can be done.
このような装置によれば、下記効果が奏せられる。According to such a device, the following effects can be achieved.
（］） 通電端が第１の導電膜の上端のみに限定され
ず央部にも付設されるので、第１の導電膜内での電流密
度がほぼ均一化され、従って第１の導電膜の耐久性が向
上する。(]) Since the current-carrying end is not limited to the upper end of the first conductive film but is also attached to the center, the current density within the first conductive film is almost uniform, and therefore the current density of the first conductive film is Improves durability.
（２） 通電端が第１の導電膜の上端のみに限定され
ず央部にも付設されるので、第１の導電膜内での電流密
度平均値が下がり、電力消費量が減少し、従って経済性
が向上する。(2) Since the current-carrying end is not limited to only the upper end of the first conductive film but is also attached to the center, the average current density within the first conductive film is reduced, power consumption is reduced, and therefore Economic efficiency improves.
要するに本発明によれば、船舶、海洋構造物等海水に接
する構造物の接水面を電気絶縁塗膜を介し被覆し比抵抗
の小さい金属又は金属酸化物の薄板、溶射膜、蒸着膜又
は融着膜からなりそれに通電端が設けられている第１の
導電膜と、上記第１の導電膜の外側を被覆し耐酸化性不
溶性物質と有機バインダーとからなり上記第１の導電膜
より電気抵抗の大きい第２の導電膜と、上記第２の導電
膜に対向し鉄、銅又は炭素からなり海水中に設置された
電気伝導体と、上記第１の導電膜と上記電気伝導体との
間に設置され上記第１の導電膜から上記第２の導電膜を
通して上記電気伝導体方向に直流を通電する電源装置と
を具えてなる構造物の防汚装置において、上記第１の導
電膜の複数個所に上記通電端を設けることにより第１の
導電膜の通電端電流密度が過度に局部的に上昇せず、従
って導電膜の耐久性が大きく、かつ電力消費の少ない経
済的な海水に接する構造物の防汚装置を得るから、本発
明は産業上極めて有益なものである。In short, according to the present invention, the water-contact surfaces of structures in contact with seawater, such as ships and offshore structures, are coated with an electrically insulating coating film, and a thin plate, sprayed film, vapor deposited film, or fusion film of a metal or metal oxide with low specific resistance is coated. A first conductive film is formed of a film and is provided with a conductive end, and the first conductive film is coated with an oxidation-resistant insoluble substance and an organic binder and has a lower electrical resistance than the first conductive film. a large second conductive film; an electric conductor made of iron, copper, or carbon and placed in seawater facing the second conductive film; and between the first conductive film and the electric conductor; An antifouling device for a structure comprising: a power supply device that is installed and supplies direct current from the first conductive film to the second conductive film in the direction of the electrical conductor; By providing the above-mentioned current-carrying end in the first conductive film, the current density at the current-carrying end of the first conductive film does not increase locally excessively, and therefore the durability of the conductive film is high, and an economical structure in contact with seawater with low power consumption is provided. Therefore, the present invention is extremely useful industrially.
第１図は本発明を船体外板に適用したー実施例を示す斜
視図、第２図は第１図装置による電流密度比の分布状態
を示す比較線図である。
第３図、第４図はそれぞれ本出願人がさきに提案した海
水に接する構造物の防汚装置の縦断面を示す模式図であ
る。
１・・・船体外板、２．３・・・通電端、４・・・リー
ド線、５，６・・・曲線、７・・・防汚に必要な電流密
度０３・・・絶縁塗膜、０７・・・第１の導電膜、０９
・・・第２の導電膜、FIG. 1 is a perspective view showing an embodiment in which the present invention is applied to a ship's outer plate, and FIG. 2 is a comparative diagram showing the state of distribution of current density ratio by the apparatus shown in FIG. 1. FIGS. 3 and 4 are schematic diagrams each showing a longitudinal section of an antifouling device for a structure in contact with seawater, which was previously proposed by the applicant. 1... Hull outer plate, 2.3... Current-carrying end, 4... Lead wire, 5, 6... Curve, 7... Current density required for antifouling 03... Insulating coating film , 07...first conductive film, 09
... second conductive film,
Claims (1)
気絶縁塗膜を介し被覆し比抵抗の小さい金属又は金属酸
化物の薄板、溶射膜、蒸着膜又は融着膜からなりそれに
通電端が設けられている第１の導電膜と、上記第１の導
電膜の外側を被覆し耐酸化性不溶性物質と有機バインダ
ーとからなり上記第１の導電膜より電気抵抗の大きい第
２の導電膜と、上記第２の導電膜に対向し鉄、銅又は炭
素からなり海水中に設置された電気伝導体と、上記第１
の導電膜と上記電気伝導体との間に設置され上記第１の
導電膜から上記第２の導電膜を通して上記電気伝導体方
向に直流を通電する電源装置とを具えてなる構造物の防
汚装置において、上記第１の導電膜の複数個所に上記通
電端を設けることを特徴とする海水に接する構造物の防
汚装置。The water-contact surfaces of structures in contact with seawater, such as ships and offshore structures, are coated with an electrically insulating coating and are made of a thin plate, sprayed film, vapor deposited film, or fusion film of metal or metal oxide with low specific resistance, and the current-carrying end is a second conductive film that covers the outside of the first conductive film and is made of an oxidation-resistant insoluble substance and an organic binder and has a higher electrical resistance than the first conductive film; , an electrical conductor made of iron, copper, or carbon and placed in seawater facing the second electrically conductive film;
and a power supply device installed between the conductive film and the electric conductor, which supplies direct current from the first conductive film to the second conductive film in the direction of the electric conductor. An antifouling device for a structure in contact with seawater, characterized in that the first electrically conductive film is provided with the current-carrying ends at a plurality of locations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27251189A JPH03132495A (en) | 1989-10-19 | 1989-10-19 | Contamination preventive device for structure in contact with sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27251189A JPH03132495A (en) | 1989-10-19 | 1989-10-19 | Contamination preventive device for structure in contact with sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03132495A true JPH03132495A (en) | 1991-06-05 |
Family
ID=17514922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27251189A Pending JPH03132495A (en) | 1989-10-19 | 1989-10-19 | Contamination preventive device for structure in contact with sea water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03132495A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110588A (en) * | 1978-01-09 | 1979-08-30 | Lectret Sa | Device of preventing attachment of oceanic life to hull |
| JPS5737091A (en) * | 1980-08-14 | 1982-03-01 | Mitsubishi Heavy Ind Ltd | Adhesion-proofing process of ship |
| JPS6487791A (en) * | 1987-06-30 | 1989-03-31 | Mitsubishi Heavy Ind Ltd | Antifouling device for structure in contact with seawater |
-
1989
- 1989-10-19 JP JP27251189A patent/JPH03132495A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110588A (en) * | 1978-01-09 | 1979-08-30 | Lectret Sa | Device of preventing attachment of oceanic life to hull |
| JPS5737091A (en) * | 1980-08-14 | 1982-03-01 | Mitsubishi Heavy Ind Ltd | Adhesion-proofing process of ship |
| JPS6487791A (en) * | 1987-06-30 | 1989-03-31 | Mitsubishi Heavy Ind Ltd | Antifouling device for structure in contact with seawater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2647498B2 (en) | Antifouling equipment for structures in contact with seawater | |
| US3303118A (en) | Cathodic protection and anti-marine fouling electrode system | |
| EP0102380B1 (en) | Oxide anode for use in impressed current cathodic corrosion protection | |
| US3038849A (en) | Insoluble trailing anode for cathodic protection of ships | |
| EP1781533A1 (en) | Multilayered submersible structure with fouling inhibiting characteristic | |
| JP2001114185A (en) | Sea water resistance reduced ship and resistance reducing method for hull | |
| JPH03132495A (en) | Contamination preventive device for structure in contact with sea water | |
| JPH0814036B2 (en) | Antifouling equipment for structures in contact with seawater | |
| US4539078A (en) | Method of and apparatus for making a synthetic breakwater | |
| JP2575866B2 (en) | Antifouling equipment for structures in contact with seawater | |
| JP2601807B2 (en) | Antifouling device and antifouling / anticorrosion device for structures in contact with seawater | |
| JP2505608B2 (en) | Antifouling equipment for structures in contact with seawater | |
| JP3145390B2 (en) | Conductive film for seawater electrolytic antifouling equipment | |
| JPH02147493A (en) | Anti-contamination device for marine structure | |
| JPH02279772A (en) | Anti-fouling apparatus for structure brought into contact with sea water | |
| JP2984313B2 (en) | Corrosion and antifouling equipment for propellers | |
| JP2915618B2 (en) | Seawater electrolytic antifouling equipment for seawater contact structures | |
| JP3207718B2 (en) | Marine organism adhesion prevention coating | |
| JP3207665B2 (en) | Hull anticorrosion and antifouling equipment for ship speed | |
| JP3021215B2 (en) | DC supply device for electrolytic antifouling equipment | |
| JP2809351B2 (en) | Antifouling and anticorrosion methods for hull skin in contact with seawater | |
| JPS61136689A (en) | Device for preventing sticking of marine life | |
| JPH048691A (en) | Method for constructing antifouliong device for sea water contact structure | |
| Fajardo | Zn--Fe Alloys Electrodeposition at High Current Density. I. Current Efficiency and Deposit Characterization | |
| JPH03125690A (en) | Antifouling device for construction touching seawater |