FR2356741A1 - Procede pour l'affaiblissement de l'interference de structures metalliques ainsi que montage et capteurs pour la mise en oeuvre de ce procede - Google Patents

Procede pour l'affaiblissement de l'interference de structures metalliques ainsi que montage et capteurs pour la mise en oeuvre de ce procede

Info

Publication number
FR2356741A1
FR2356741A1 FR7720365A FR7720365A FR2356741A1 FR 2356741 A1 FR2356741 A1 FR 2356741A1 FR 7720365 A FR7720365 A FR 7720365A FR 7720365 A FR7720365 A FR 7720365A FR 2356741 A1 FR2356741 A1 FR 2356741A1
Authority
FR
France
Prior art keywords
underground pipe
current
circuit
protecting
electric circuit
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
Application number
FR7720365A
Other languages
English (en)
Other versions
FR2356741B1 (fr
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.)
Chemoprojekt Projektova Inzenyrska a Konzultacni Organizace
Original Assignee
Chemoprojekt Projektova Inzenyrska a Konzultacni Organizace
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
Priority claimed from CS7600004354A external-priority patent/CS184612B1/cs
Priority claimed from CS7600006147A external-priority patent/CS182743B1/cs
Priority claimed from CS680476A external-priority patent/CS181347B1/cs
Priority claimed from CS885076A external-priority patent/CS183993B1/cs
Application filed by Chemoprojekt Projektova Inzenyrska a Konzultacni Organizace filed Critical Chemoprojekt Projektova Inzenyrska a Konzultacni Organizace
Publication of FR2356741A1 publication Critical patent/FR2356741A1/fr
Application granted granted Critical
Publication of FR2356741B1 publication Critical patent/FR2356741B1/fr
Granted legal-status Critical Current

Links

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
    • C23F13/04—Controlling or regulating desired parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement

Abstract

a. Procédé pour l'affaiblissement de l'interférence de structures métalliques ainsi que montage et capteurs pour la mise en oeuvre de ce procedé. b. Procédé caractérisé en ce qu'on constitue un chemin électrique galvano-électrolytique parallèle dans lequel passe un courant électrique, formé par une quote-part du courant d'interférence et par des courants galvaniques produits par l'influence des surfaces métalliques différemment polarisées, en mesurant ledit courant électrique et en réduisant la résistance variable couplée dans le chemin électrique galvanique jusqu'à ce que le courant électrique, passant dans le chemin électrique galvano-électrolytique parallèle par la partie électrolytique de ce chemin électrique galvano-électrolytique parallèle devienne nul. c. L'invention s'applique notamment à la protection contre les courants vagabonds des canalisations métalliques enterrées.
FR7720365A 1976-07-01 1977-07-01 Procede pour l'affaiblissement de l'interference de structures metalliques ainsi que montage et capteurs pour la mise en oeuvre de ce procede Granted FR2356741A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CS7600004354A CS184612B1 (en) 1976-07-01 1976-07-01 Portable sensor for the degree corrosion measuring and electrochemical prevention of isolated structure placed in the electrolyte in the electric field
CS7600006147A CS182743B1 (en) 1976-09-22 1976-09-22 Method for removal or decrease of interference at metal constructions buried in electrolyte in etraneous direct current field and connexion for making the said method
CS680476A CS181347B1 (en) 1976-10-21 1976-10-21 Device for measuring of polarisation potential of bare metal construction buried in electrolyte in current field
CS885076A CS183993B1 (en) 1976-12-30 1976-12-30 Device for measuring break potential of metal structures which are proveded with insulating coat and are placed in electrolyte in electric field

Publications (2)

Publication Number Publication Date
FR2356741A1 true FR2356741A1 (fr) 1978-01-27
FR2356741B1 FR2356741B1 (fr) 1983-01-21

Family

ID=27430114

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720365A Granted FR2356741A1 (fr) 1976-07-01 1977-07-01 Procede pour l'affaiblissement de l'interference de structures metalliques ainsi que montage et capteurs pour la mise en oeuvre de ce procede

Country Status (5)

Country Link
AT (1) AT362837B (fr)
CA (1) CA1100437A (fr)
DD (1) DD131186A5 (fr)
DE (1) DE2729902A1 (fr)
FR (1) FR2356741A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656426A1 (fr) * 1989-12-27 1991-06-28 Gaz De France Procede et dispositif de determination des interactions dues a des courants continus sur des structures metalliques enterrees voisines.
FR2917546A1 (fr) * 2007-06-18 2008-12-19 Transport Petrol Par Pipeline Procede et dispositif pour la protection d'une conduite contre les courants vagabonds

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943027A (en) * 1957-10-09 1960-06-28 Pure Oil Co Method and apparatus for determining current density
US2947679A (en) * 1956-12-24 1960-08-02 Pure Oil Co Corrosion rate sensing assembly
DE2241648A1 (de) * 1972-08-24 1974-03-21 Battelle Institut E V Verfahren zur messung des schutzpotentials kathodisch geschuetzter objekte
DE2361547A1 (de) * 1973-12-11 1975-06-19 Karl Heinz Ortmann Kathodischer korrosionsschutz mit einem vom abschaltpotential gesteuertem fremdstromschutzgeraet
FR2309874A1 (fr) * 1975-04-28 1976-11-26 Chemoprojekt Projektova Inzeny Procede et dispositif de mesure du potentiel polarisant de structures en metal contenues dans un electrolyte d'un champ electrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947679A (en) * 1956-12-24 1960-08-02 Pure Oil Co Corrosion rate sensing assembly
US2943027A (en) * 1957-10-09 1960-06-28 Pure Oil Co Method and apparatus for determining current density
DE2241648A1 (de) * 1972-08-24 1974-03-21 Battelle Institut E V Verfahren zur messung des schutzpotentials kathodisch geschuetzter objekte
DE2361547A1 (de) * 1973-12-11 1975-06-19 Karl Heinz Ortmann Kathodischer korrosionsschutz mit einem vom abschaltpotential gesteuertem fremdstromschutzgeraet
FR2309874A1 (fr) * 1975-04-28 1976-11-26 Chemoprojekt Projektova Inzeny Procede et dispositif de mesure du potentiel polarisant de structures en metal contenues dans un electrolyte d'un champ electrique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/71 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656426A1 (fr) * 1989-12-27 1991-06-28 Gaz De France Procede et dispositif de determination des interactions dues a des courants continus sur des structures metalliques enterrees voisines.
EP0435761A1 (fr) * 1989-12-27 1991-07-03 Gaz De France (Service National) Procédé et dispositif de détermination des interactions dues à des courants continus sur des structures métalliques enterrées voisines
US5144253A (en) * 1989-12-27 1992-09-01 Gaz De France Method and apparatus for determining interactions due to direct currents on adjacent buried metal structures
FR2917546A1 (fr) * 2007-06-18 2008-12-19 Transport Petrol Par Pipeline Procede et dispositif pour la protection d'une conduite contre les courants vagabonds

Also Published As

Publication number Publication date
CA1100437A (fr) 1981-05-05
ATA465877A (de) 1980-11-15
FR2356741B1 (fr) 1983-01-21
DD131186A5 (de) 1978-06-07
DE2729902A1 (de) 1978-01-05
AT362837B (de) 1981-06-25

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Legal Events

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ST Notification of lapse