JPH0483888A - Antifouling and anticorrosion device for marine - Google Patents
Antifouling and anticorrosion device for marineInfo
- Publication number
- JPH0483888A JPH0483888A JP2200856A JP20085690A JPH0483888A JP H0483888 A JPH0483888 A JP H0483888A JP 2200856 A JP2200856 A JP 2200856A JP 20085690 A JP20085690 A JP 20085690A JP H0483888 A JPH0483888 A JP H0483888A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- electrode
- electrode plate
- marine structure
- marine
- 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.)
- Granted
Links
- 230000003373 anti-fouling effect Effects 0.000 title claims description 6
- 239000013535 sea water Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000035699 permeability Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract 4
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- -1 chlorine ions Chemical class 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、海洋構造物に対して、海洋生物の付着防止と
、腐食防止とを行えるようにした防汚、防食装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an antifouling and anticorrosion device that can prevent marine organisms from adhering to marine structures and prevent corrosion.
「従来の技術」
従来、海洋構造物に対する海洋生物の付着防止手段とし
て、例えば特公昭６３−３４１９２号公報および特開昭
６４−８７７９１号公報に開示されているものがある。"Prior Art" Conventionally, as means for preventing the attachment of marine organisms to marine structures, there are methods disclosed, for example, in Japanese Patent Publication No. 34192/1982 and Japanese Patent Application Laid-open No. 87791/1982.
［発明が解決しようとする課題」
ところで、前記従来手段は、いずれも導電性塗膜を海洋
構造物に被覆するようにしたものであるから、完全防水
環境下での施工となり、施工に困難性を伴い、工期が長
くかかるという問題がある。[Problems to be Solved by the Invention] Incidentally, since all of the above-mentioned conventional means involve coating marine structures with conductive coatings, they must be constructed in a completely waterproof environment, which poses difficulties in construction. There is a problem in that the construction period is long.
［課題を解決するための手段」
本発明は、前記従来の問題を解決すべくなしたものであ
って、その要旨とするところは、海水に接する、板面に
多数の孔を有する第１電極板と、海洋構造物側に絶縁板
を介して取付けられる第２電極板と、両電極板間に設け
られ、第１電極板の孔と同位置で、その孔よりも若干小
径の孔を有する中間絶縁板との四部材から電極体を構成
し、前記第１電極板を正極とし、前記第２電極板および
海洋構造物を負極として直流電圧を印加するようにした
ことにある。[Means for Solving the Problems] The present invention has been made to solve the above-mentioned conventional problems, and its gist is to provide a first electrode that is in contact with seawater and has a large number of holes on its plate surface. a second electrode plate attached to the marine structure side via an insulating plate, and a hole provided between both electrode plates at the same position as the hole in the first electrode plate and having a slightly smaller diameter than the hole. The electrode body is composed of four members including an intermediate insulating plate, and the first electrode plate is used as a positive electrode, and the second electrode plate and the marine structure are used as negative electrodes to apply a DC voltage.
「作用」
前記の如く、海水に接する、板面に多数の孔を有する第
１電極板と、海洋構造物側に絶縁板を介して取付けられ
る第２電極板と、両電極板間に設けられ、第１電極板の
孔と同位置で、その孔よりも若干小径の孔を有する中間
絶縁板との四部材から電極体を構成し、前記第１電極板
を正極とし、前記第２電極板および海洋構造物を負極と
して直流電圧を印加するようにしたので、電極体周域の
海水を電解することができ、従って微量の活性塩素イオ
ンが発生し、この活性塩素イオンによって、電極体なか
んづく海洋＋！構造物対する海洋生物の付着防止と、電
極体周域の滅菌による海水清浄化とを行うことができる
。"Function" As mentioned above, the first electrode plate that is in contact with seawater and has a large number of holes on the plate surface, the second electrode plate that is attached to the marine structure side via an insulating plate, and the electrode plate that is provided between the two electrode plates. , an electrode body is constituted by four members, including an intermediate insulating plate having a hole at the same position as the hole in the first electrode plate and slightly smaller in diameter than the hole, the first electrode plate being a positive electrode, and the second electrode plate being a positive electrode; Since DC voltage is applied using the marine structure as a negative electrode, the seawater around the electrode body can be electrolyzed, and a small amount of active chlorine ions are generated. +! It is possible to prevent marine organisms from adhering to structures and to purify seawater by sterilizing the area around the electrode body.
また第２電極板から海洋構造物へと防食電流を流すこと
ができるので、海洋構造物を防食することができる。Furthermore, since a corrosion protection current can be passed from the second electrode plate to the marine structure, the marine structure can be protected from corrosion.
「実施例」 次に本発明の実施例を図面に基づき以下に説明する。"Example" Next, embodiments of the present invention will be described below based on the drawings.
第１図、第２図に示す如く、海水に接する、板面に多数
の孔１ａを有する第１電極板１と、この第１電極板１の
裏面に設けられ、第１電極板１の孔１ａと同位置で、そ
の孔１ａよりも若干小径の孔２ａを有する中間絶縁板２
と、この中間絶縁板２の裏面に設けられた第２電極板３
と、この第２電極板３の裏面に設けられた絶縁板４との
四部材から電極体を構成し、この電極体を、前記絶縁板
４を介して、海洋構造物５の海水に接する面の水線部か
ら深さ数ｍの範囲にわたって取付け、前記第１電極板１
を正極とし、前記第２電極板３および海洋構造物５を負
極として、海洋構造物５上に設けた直流電源装置６から
の直流電圧を印加するようにしたのである。As shown in FIGS. 1 and 2, there is a first electrode plate 1 having a large number of holes 1a on the plate surface which is in contact with seawater, and a first electrode plate 1 provided with holes 1a on the back surface of the first electrode plate 1. An intermediate insulating plate 2 having a hole 2a with a slightly smaller diameter than the hole 1a at the same position as the hole 1a.
and a second electrode plate 3 provided on the back surface of this intermediate insulating plate 2.
and an insulating plate 4 provided on the back surface of the second electrode plate 3. The electrode body is connected to the surface of the marine structure 5 in contact with seawater via the insulating plate 4. The first electrode plate 1 is attached to a depth of several meters from the water line of the
is used as a positive electrode, and the second electrode plate 3 and the marine structure 5 are used as negative electrodes, and a DC voltage from a DC power supply device 6 provided on the marine structure 5 is applied.
前記各電極板ｌ、３は、固有抵抗が１’Ｘ］Ｏ’Ωｃｓ
Ｕ下で、しかも電極体全体が可撓性を有するものが好ま
しい。Each of the electrode plates 1 and 3 has a specific resistance of 1'X]O'Ωcs
It is preferable that the entire electrode body is flexible under U.
また、第１電極板１と、第２電極板３との露出面積比は
、第１電極板１を１とした場合、第２電極板３を０．１
以下とする。Furthermore, the exposed area ratio between the first electrode plate 1 and the second electrode plate 3 is 0.1 when the first electrode plate 1 is 1 and the second electrode plate 3 is 0.1.
The following shall apply.
さらに、前記海洋構造物５例の絶縁板４を、透水性を有
するポーラスな材料で構成した方が海洋構造物５の防食
を行う場合、好適である、またさらに、第１図に示す如
く、海水の温度と流速とを検出するセンサー７からの検
出信号を、前記直流電源装置６に対する制御用入力信号
として、前記画電極板１．３間に印加する直流電圧を適
正に制御するものとする。Furthermore, it is preferable that the insulating plates 4 of the five marine structures are made of a porous material having water permeability in order to protect the marine structures 5 from corrosion.Furthermore, as shown in FIG. A detection signal from a sensor 7 that detects the temperature and flow velocity of seawater is used as a control input signal to the DC power supply device 6 to appropriately control the DC voltage applied between the picture electrode plates 1 and 3. .
なお、第１電極板１を正極とし、第２電極板３を負極と
して長期間使用すると、第２電極板３の表面に電解生成
物（ＣａＣＯ！ 、 Ｍｇ （０）１） ２等）が堆積
し、極間が短絡することもあり、この不具合を防止する
ために、直流電源装置６に１．少なくとも１日２時間程
度の極性切替え機能をもたせ、電解生成物を除去するよ
うにした方が好ましい。Note that when the first electrode plate 1 is used as a positive electrode and the second electrode plate 3 is used as a negative electrode for a long period of time, electrolytic products (CaCO!, Mg (0) 1) 2, etc.) are deposited on the surface of the second electrode plate 3. However, there may be a short circuit between the poles, so in order to prevent this problem, the DC power supply 6 must be equipped with 1. It is preferable to have a polarity switching function for at least about 2 hours a day to remove electrolyzed products.
「発明の効果」
以上述べた如く、本発明は、海水に接する、板面に多数
の孔を有する第１電極板と、海洋構造物側に絶縁板を介
して取付けられる第２電極板と、両電極板間に設けられ
、第１電極板の孔と同位置で、その孔よりも若干小径の
孔を有する中間絶縁板との四部材から電極体を構成し、
前記第１電極板を正極とし、前記第２電極板および海洋
構造物を負極として直流電圧を印加するようにしたので
、電極体周域の海水を電解することができ、従って微量
の活性塩素イオンが発生し、この活性塩素イオンによっ
て、電極体なかんづく海洋構造物に対する海洋生物の付
着防止と、電極体周域の滅菌による海水清浄化とを行う
ことができる。"Effects of the Invention" As described above, the present invention includes: a first electrode plate that is in contact with seawater and has a large number of holes on the plate surface; a second electrode plate that is attached to the marine structure side via an insulating plate; An electrode body is constructed from four members, including an intermediate insulating plate provided between both electrode plates and having a hole at the same position as the hole in the first electrode plate and having a slightly smaller diameter than the hole;
Since the first electrode plate is used as a positive electrode and the second electrode plate and the marine structure are used as negative electrodes to apply a DC voltage, the seawater around the electrode body can be electrolyzed, and therefore a trace amount of active chlorine ions can be electrolyzed. is generated, and these active chlorine ions can prevent marine organisms from adhering to the electrode body, especially marine structures, and purify seawater by sterilizing the area around the electrode body.
また第２電極板から海洋構造物へと防食電流を流すこと
ができるので、海洋構造物を防食することができる。Furthermore, since a corrosion protection current can be passed from the second electrode plate to the marine structure, the marine structure can be protected from corrosion.
しかも、海洋構造物に対して、予め工場において製作さ
れた電極体を取付けるだけであるから、施工が容易であ
り、工期を短縮することができる。Moreover, since the electrode body, which has been manufactured in advance at a factory, is simply attached to the marine structure, construction is easy and the construction period can be shortened.
第１図は本発明の実施例を示す回路図付き縦断側面図、
第２図は正面図である。
■・・・第１電極板 １ａ・・・孔２・・・中間絶
縁板 ２ａ・・・孔３・・・第２電極板 ４・
・・絶縁板５・・・海洋構造物 ６・・・直流電源
装置７・・・センサ
第１図FIG. 1 is a longitudinal sectional side view with a circuit diagram showing an embodiment of the present invention;
FIG. 2 is a front view. ■... First electrode plate 1a... Hole 2... Intermediate insulating plate 2a... Hole 3... Second electrode plate 4.
... Insulating plate 5 ... Marine structure 6 ... DC power supply device 7 ... Sensor Fig. 1
Claims (4)
板と、海洋構造物側に絶縁板を介して取付けられる第２
電極板と、両電極板間に設けられ、第１電極板の孔と同
位置で、その孔よりも若干小径の孔を有する中間絶縁板
との四部材から電極体を構成し、前記第１電極板を正極
とし、前記第２電極板および海洋構造物を負極として直
流電圧を印加するようにしたことを特徴とする海洋構造
物の防汚、防食装置。(1) A first electrode plate that is in contact with seawater and has many holes on the plate surface, and a second electrode plate that is attached to the marine structure side via an insulating plate.
The electrode body is composed of four members: an electrode plate and an intermediate insulating plate provided between both electrode plates and having a hole at the same position as the hole in the first electrode plate and slightly smaller in diameter than the hole, and An antifouling and anticorrosion device for marine structures, characterized in that the electrode plate is used as a positive electrode, and the second electrode plate and the marine structure are used as negative electrodes to apply a DC voltage.
電極板の露出面積は０．１以下とすることを特徴とする
請求項第１に記載の海洋構造物の防汚、防食装置。(2) If the exposed area of the first electrode plate is 1, the second
The antifouling and anticorrosion device for marine structures according to claim 1, wherein the exposed area of the electrode plate is 0.1 or less.
ーラスな材料で構成したことを特徴とする請求項第１、
第２に記載の海洋構造物の防汚、防食装置。(3) Claim 1, wherein the insulating plate on the marine structure side is made of a porous material having water permeability.
The antifouling and anticorrosion device for marine structures according to the second aspect.
度、流速により制御することを特徴とする請求項第１、
第２、第３に記載の海洋構造物の防汚、防食装置。(4) The first aspect of the invention is characterized in that the DC voltage applied between the two electrode plates is controlled by the temperature and flow velocity of seawater.
The antifouling and anticorrosion device for marine structures according to the second and third aspects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2200856A JP2854686B2 (en) | 1990-07-27 | 1990-07-27 | Antifouling and anticorrosion equipment for marine structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2200856A JP2854686B2 (en) | 1990-07-27 | 1990-07-27 | Antifouling and anticorrosion equipment for marine structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0483888A true JPH0483888A (en) | 1992-03-17 |
| JP2854686B2 JP2854686B2 (en) | 1999-02-03 |
Family
ID=16431362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2200856A Expired - Lifetime JP2854686B2 (en) | 1990-07-27 | 1990-07-27 | Antifouling and anticorrosion equipment for marine structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2854686B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100478647B1 (en) * | 2003-05-21 | 2005-03-23 | 주식회사 케이씨 | Apparatus for anti-fouling and anti-corrosion |
| US7013821B2 (en) | 2001-11-09 | 2006-03-21 | Jiro Sakurai | Apparatus and method for cleaning object floating at the surface of water |
| JP2020516508A (en) * | 2016-12-20 | 2020-06-11 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Load device for powering a load in a liquid |
-
1990
- 1990-07-27 JP JP2200856A patent/JP2854686B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7013821B2 (en) | 2001-11-09 | 2006-03-21 | Jiro Sakurai | Apparatus and method for cleaning object floating at the surface of water |
| KR100478647B1 (en) * | 2003-05-21 | 2005-03-23 | 주식회사 케이씨 | Apparatus for anti-fouling and anti-corrosion |
| JP2020516508A (en) * | 2016-12-20 | 2020-06-11 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Load device for powering a load in a liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2854686B2 (en) | 1999-02-03 |
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