EP0453486B1 - Dispositif de support pour anodes marines - Google Patents

Dispositif de support pour anodes marines Download PDF

Info

Publication number
EP0453486B1
EP0453486B1 EP90902166A EP90902166A EP0453486B1 EP 0453486 B1 EP0453486 B1 EP 0453486B1 EP 90902166 A EP90902166 A EP 90902166A EP 90902166 A EP90902166 A EP 90902166A EP 0453486 B1 EP0453486 B1 EP 0453486B1
Authority
EP
European Patent Office
Prior art keywords
anode
ship
cavity
steel body
edge
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.)
Expired - Lifetime
Application number
EP90902166A
Other languages
German (de)
English (en)
Other versions
EP0453486A1 (fr
Inventor
Joergen Leon Hoegberg
Bent Grumstrup Soerensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0453486A1 publication Critical patent/EP0453486A1/fr
Application granted granted Critical
Publication of EP0453486B1 publication Critical patent/EP0453486B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/18—Means for supporting electrodes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
    • C23F2213/31—Immersed structures, e.g. submarine structures

Definitions

  • the present invention relates to a holder device for a marine anode which is mounted to ships' cladding plates to prevent or reduce their corrosion, by connection to the ship's side of protruding end parts of anode carrier irons embedded in the anode, said holder device comprises a steel body, which is adapted to be welded onto the exterior of the ship's side, and provided with a cavity adapted to receive one of said end parts of the anode carrier iron, said steel body, in connection with said cavity, comprises clamping means which are arranged to retain said end part and to establish an efficient conductive connection between said end part of the anode carrier iron and the ship's side.
  • anode carrier irons comprising formbent iron slabs whose opposing end parts protrude from the zinc anode and which usually are flushed with a side face thereof. Opposing parts of the anode carrier iron are intended to be welded directly onto the ship's cladding plates; or the anode carrier iron is possibly connected to the cladding plates by means of bolts which are welded onto the ship's side.
  • GB-A-1 553 813 discloses a system comprising a particular lock chamber system by means of which the electrical cable leading to the anodes is sealed from the sea-water and by means of which it becomes possible to replace the anti-corrosion anodes whilst the ship is still afloat without the need of placing the ship in dry dock.
  • this known system still involves time consuming operations both outside the ship by a diver and inside the ship for the replacement of the anodes and the reestablisment of the electrical connections to the anodes.
  • US-A-3 232 857 discloses a cathodic protection anode structure comprising particular shaped mounting brackets of steel and permanently welded to the hull in positions of longitudinal alignment thereon, and particularly shaped intervening anode metal bars comprising internal supporting core rods engaging with the mounting brackets.
  • the main purpose is to provide a compact, rugged and efficient anode structure which lends itself to smooth contouring so as to present minimum drag, and minimum likelihood of being scraped or torn loose. The system requires docking of the ship.
  • US-A-4 191 625 describes a mode of fixation of the anode by means of a holder, welded to the hull through a hole of which a T screw is passed, clamping the anode lugs with the aid of washer and a bolt.
  • This known anode assembly system involves no advantages in the mounting situation - for a diver it would be difficult to replace the anode when the ship was still afloat.
  • the purpose of the invention is to provide a holder device for marine anodes by means of which the work with changing the marine anodes can be substantially facilitated and made less costly.
  • the holder device according to the invention is distinctive in that said cavity is provided in said steel body at one side which is intended to be placed against the ship's side, as said cavity communicates with a top side edge and an end edge of the steel body, facing the anode, and in that the cavity is formed with a funneled shape, as the cavity opposite to said end edge is formed with a side face which slopes downward from said top side edge towards a mainly horizontal limiting edge, and as the cavity opposite the side of the steel body intended to be placed against the ship's side slopes downward and inward at least on a partial stretch from said top side edge and down towards the limiting edge, said partial stretch defining an upper longitudinal sloping face.
  • the mounting itself of holder devices according to the invention possibly will require a docking of the ship; but then succeeding changes can be made by a diver, possibly in a number of rounds, for example if a ferry in regular service is concerned.
  • a very substantial advantage in the anode holder device according to the invention is that one can avoid always having to remove the old anode carrier irons by flame cutting, that is, one avoids creating cutting scars in the cladding plates of the ship. For the very reason of avoiding such cutting scars in the ship's side one has up to now often chosen to let the old anode carrier irons remain in place on the ship's side, which is inappropriate as it is desirable that below the water line, the ship's side should be as smooth as possible.
  • the holder device according to the invention can advantageously be shaped such that opposite the end edge which faces the anode, the steel body is shaped with a side face sloping inward toward the side of the steel body which is intended to be placed against the ship's side.
  • Fig. 1 shows a marine anode 2 as is known, consisting of an anode body 4 of zinc or of an alloy mainly of zinc wherein an anode carrier iron 6 consisting of a form-bent iron slab is mounted by embedding it in such a way that protruding end parts 8 of the anode carrier iron 6 are flush with the back side of the marine anode 2, such that the latter can be mounted closely to a ship's side 10 by welding the end parts 8 onto it.
  • the marine anode 2 as shown is intended for mounting on a straight side part of a vessel; but also curved marine anodes are known for mounting on curved surfaces of ships. Instead of welding it directly onto the ship's side 10, the marine anode 2 shown in Fig.
  • the anode holders 12 are formed from steel and arranged to be welded onto the ship's side 10 with a sturdy circumferential weld - except for a corner area of the holder 12 where a cavity 14 is provided for receiving one of the end parts 8 of the anode carrier iron 6.
  • the cavities 14 of the respective anode holders 12 are open upwardly along the ship's side 10, that is that it is quite easy to place the marine anode 2 in the holders 12 before the end parts 8 are efficiently clamped to the ship's side 10 and the anode holders 12, respectively, by means of sturdy pointed screws 16, which can be tightened, via a threaded bore 17 from the front side of the holder 12, against an end part 8 of an anode carrier iron 6 placed in said cavity 14, such that an effective connection is established between the ship's side 10 and the marine anode 2.
  • the cavity 14 is double funnel-shaped as an end face 18 opposite the marine anode 2 slopes down from an upper side edge 20 from which a longitudinal surface part 22 slopes down as well, the surface part 22 passing into a face 24 which is parallel with a base surface 26 of the anode holder, that is also parallel with the ship's side 10.
  • the anode holder 12 can be opened and closed by means of a sturdy hexagonal spanner as the sturdy pointed screw 16 is preferably an UNBRACOTM pointed screw with a cutting edge.
  • the anode holder according to the invention is adapted for known marine anodes. In the future it is expected, however, that marine anodes for different purposes may advantageously be adapted to anode holders according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

La présente invention se rapporte à un dispositif de support pour une anode marine (2), qui est montée sur les tôles de placage recouvrant la coque du bateau pour empêcher ou atténuer leur corrosion par fixation au flanc (10) du bateau de pièces terminales saillantes (8) de fers porte-anode (6) de préférence noyés dans l'anode (2). Un tel dispositif de support se compose d'un corps en acier (12) qui est conçu pour être soudé sur l'extérieur du flanc (10) du bateau et qui présente un évidement ouvert (14) destiné à recevoir l'une des pièces terminales (8) du fer porte-anode (6) et, en relation avec l'évidement (14), le dispositif de support comprend des organes de boulonnerie (16) qui servent à retenir la pièce terminale (8) et à établir une liaison conductrice efficace entre la pièce terminale du fer porte-anode et le flanc (10) du bateau. De cette façon, on facilite sensiblement les opérations de changement des anodes marines et on en réduit le coût, dès lors que ce changement peut être effectué par un plongeur dans un temps relativement court, sans qu'il soit nécessaire de conduire le bateau au chantier ou de l'amarrer à quai.

Claims (1)

  1. Dispositif de support pour une anode marine destinée à être montée sur des plaques de revêtement de navire pour empêcher ou réduire leur corrosion, en reliant au flanc (10) du navire des pièces extrêmes (8) en saillie de fers (6) de support d'anode encastrés dans l'anode (2), ledit dispositif de support comportant un corps (12) en acier qui est destiné à être soudé sur l'extérieur du flanc (10) du navire et qui présente une cavité (14) destinée à recevoir l'une desdites pièces extrêmes (8) du fer (6) de support d'anode, ledit corps (12) en acier, en association avec ladite cavité (14), comportant des moyens (16) de bridage qui sont agencés de façon à retenir ladite pièce extrême (8) et à établir une connexion conductrice efficace entre ladite pièce extrême (8) du fer (6) de support d'anode et le flanc (10) du navire, caractérisé en ce que ladite cavité (14) est prévue dans ledit corps (12) en acier à un côté qui est prévu pour être placé contre le flanc (10) du navire, car ladite cavité (14) communique avec un bord latéral supérieur (20) et un bord extrême (19) du corps (12) en acier, faisant face à l'anode (2), et en ce que la cavité (14) est réalisée en forme d'entonnoir, car la cavité (14), opposée audit bord extrême (19), est formée de façon à présenter une face latérale (18) qui est inclinée vers le bas depuis ledit bord latéral supérieur (20) vers un bord principalement horizontal (21) de limitation, et la cavité (14), en face du côté du corps (12) en acier destiné à être placé contre le flanc (10) du navire, est inclinée vers le bas et vers l'intérieur au moins sur une étendue partielle allant dudit bord latéral supérieur (20) et descendant vers le bord (21) de limitation, ladite étendue partielle définissant une face longitudinale supérieure (22) en pente.
EP90902166A 1989-01-11 1990-01-09 Dispositif de support pour anodes marines Expired - Lifetime EP0453486B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK129/89 1989-01-11
DK012989A DK12989D0 (da) 1989-01-11 1989-01-11 Holder for skibsanoder
PCT/DK1990/000006 WO1990008204A1 (fr) 1989-01-11 1990-01-09 Dispositif de support pour anodes marines

Publications (2)

Publication Number Publication Date
EP0453486A1 EP0453486A1 (fr) 1991-10-30
EP0453486B1 true EP0453486B1 (fr) 1995-04-19

Family

ID=8090079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90902166A Expired - Lifetime EP0453486B1 (fr) 1989-01-11 1990-01-09 Dispositif de support pour anodes marines

Country Status (5)

Country Link
EP (1) EP0453486B1 (fr)
AU (1) AU4958290A (fr)
DE (1) DE69018814T2 (fr)
DK (2) DK12989D0 (fr)
WO (1) WO1990008204A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1272001B (it) * 1993-03-10 1997-06-10 Agip Spa Anodo sacrifiziale perfezionato per la protezione anticorrosiva di strutture offshore e procedimento per la sua realizzazione.
CN114475955A (zh) * 2022-02-17 2022-05-13 山东创新精密科技有限公司 一种船舶用铝合金牺牲阳极防腐机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232857A (en) * 1962-08-17 1966-02-01 Bunker Hill Company Cathodic protection anode structure
US4038168A (en) * 1975-10-29 1977-07-26 Nakagawa Corrosion Protecting Co., Ltd. Galvanic anode type cathodic protection apparatus
GB1553813A (en) * 1976-06-01 1979-10-10 Isc Alloys Ltd Protection of ships and other structures against corrosion
US4191625A (en) * 1976-07-22 1980-03-04 Sabins Industries, Inc. Aluminum marine anode assembly with low resistance surface mountings
GB2118974A (en) * 1982-04-27 1983-11-09 Corrintec Uk Limited Module for an electrode

Also Published As

Publication number Publication date
DE69018814T2 (de) 1995-12-07
DE69018814D1 (de) 1995-05-24
AU4958290A (en) 1990-08-13
DK0453486T3 (da) 1995-09-04
EP0453486A1 (fr) 1991-10-30
WO1990008204A1 (fr) 1990-07-26
DK12989D0 (da) 1989-01-11

Similar Documents

Publication Publication Date Title
US3133873A (en) Electrolytic anode and connection
EP0453486B1 (fr) Dispositif de support pour anodes marines
US4176033A (en) Anode clamp assembly and method of installation
US2762771A (en) Bilge keel anode
US2826543A (en) Mounting means for cathodic protection anodes
JP2601338B2 (ja) 流電陽極方式と外部電源方式とを併用した電気防食方法
WO2017007334A1 (fr) Systèmes de protection cathodique
US3488274A (en) Electrolytic composite anode and connector
KR100421822B1 (ko) 해양구조물용 강제전류인가 방식장치
US3232857A (en) Cathodic protection anode structure
US4038168A (en) Galvanic anode type cathodic protection apparatus
CN211543803U (zh) 一种船舶牺牲阳极块安装结构
US4409081A (en) Sacrificial anode
US3718570A (en) Cathodic protection anode with sections replaceable underwater
US4915053A (en) Method and apparatus for cathodic protection of marine vessels
GB2243619A (en) Mounting a sacrificial anode in the hull of a boat
US5932087A (en) Submersible anode and method
US3179582A (en) Welding attachment of anodes for cathodic protection
CN218842334U (zh) 一种船舶牺牲阳极的安装结构
US2904489A (en) Anode mounting apparatus
FI77269C (fi) Foerfarande och anordning foer katodiskt skydd av i havsfoerhaollanden fungerande staolkonstruktioner.
JPH0541710B2 (fr)
KR200180451Y1 (ko) 선박부식방지용 아연판구조
JP4146994B2 (ja) 電気防食装置
EP0145802A1 (fr) Procédé pour empêcher l'encrassement et la corrosion d'une structure

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910627

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE DK FR GB NL SE

17Q First examination report despatched

Effective date: 19930825

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE DK FR GB NL SE

REF Corresponds to:

Ref document number: 69018814

Country of ref document: DE

Date of ref document: 19950524

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980106

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980129

Year of fee payment: 9

Ref country code: FR

Payment date: 19980129

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980130

Year of fee payment: 9

Ref country code: DK

Payment date: 19980130

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980227

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19980320

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990202

BERE Be: lapsed

Owner name: SOERENSEN BENT GRUMSTRUP

Effective date: 19990131

Owner name: HOEGBERG JOERGEN LEON

Effective date: 19990131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP