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ES2409938B1 - Method and device for cathodic corrosion protection - Google Patents

Method and device for cathodic corrosion protection Download PDF

Info

Publication number
ES2409938B1
ES2409938B1 ES201132117A ES201132117A ES2409938B1 ES 2409938 B1 ES2409938 B1 ES 2409938B1 ES 201132117 A ES201132117 A ES 201132117A ES 201132117 A ES201132117 A ES 201132117A ES 2409938 B1 ES2409938 B1 ES 2409938B1
Authority
ES
Spain
Prior art keywords
potential
measured
phase
time
vrefmin
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.)
Withdrawn - After Issue
Application number
ES201132117A
Other languages
Spanish (es)
Other versions
ES2409938R1 (en
ES2409938A2 (en
Inventor
Mounir KHOLKY
Luis Mª NAZABAL MUÑAGORRI
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.)
Fagor Electrodomesticos SCL
Original Assignee
Fagor Electrodomesticos SCL
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 Fagor Electrodomesticos SCL filed Critical Fagor Electrodomesticos SCL
Priority to ES201132117A priority Critical patent/ES2409938B1/en
Priority to EP12382489.8A priority patent/EP2610369A3/en
Publication of ES2409938A2 publication Critical patent/ES2409938A2/en
Publication of ES2409938R1 publication Critical patent/ES2409938R1/en
Application granted granted Critical
Publication of ES2409938B1 publication Critical patent/ES2409938B1/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/40—Arrangements for preventing corrosion
    • F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Structural Engineering (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

Método y dispositivo de protección catódica anticorrosiva por corriente impresa para superficies metálicas en contacto con un electrolito, en el que se utiliza un ánodo inerte, en donde se conecta y desconecta una corriente de protección en periodos sucesivos Pa y Pd, comprendiendo cada período Pd una fase de espera Fe, y una fase de medición y regulación Fmr en la que se mide una diferencia de potencial {dl}V entre el potencial Vo en el ánodo inerte y la superficie metálica, y un potencial Vrefmin, en donde en la fase Fmr se mide el tiempo {dl}t que transcurre entre un instante to en el que se mide el potencial Vo, y un instante t en el que se alcanza el Vrefmin y se establece la magnitud de la corriente de protección y un tiempo de activación ta del siguiente período Pa, en función de {dl}V y {dl}t.Method and device for cathodic protection against corrosion by printed current for metal surfaces in contact with an electrolyte, in which an inert anode is used, where a protection current is connected and disconnected in successive periods Pa and Pd, each period Pd comprising a Waiting phase Fe, and a measurement and regulation phase Fmr in which a potential difference {dl} V is measured between the Vo potential in the inert anode and the metal surface, and a Vrefmin potential, where in the Fmr phase the time {dl} t that elapses between an instant to when the potential Vo is measured is measured, and a time t at which the Vrefmin is reached and the magnitude of the protection current and an activation time ta is established of the following period Pa, as a function of {dl} V and {dl} t.

Description

l ΔVl ΔV

Δt.  Δt.

ΔV ΔV

ES201132117A 2011-12-28 2011-12-28 Method and device for cathodic corrosion protection Withdrawn - After Issue ES2409938B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201132117A ES2409938B1 (en) 2011-12-28 2011-12-28 Method and device for cathodic corrosion protection
EP12382489.8A EP2610369A3 (en) 2011-12-28 2012-12-10 Method and device for anti-corrosion cathodic protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201132117A ES2409938B1 (en) 2011-12-28 2011-12-28 Method and device for cathodic corrosion protection

Publications (3)

Publication Number Publication Date
ES2409938A2 ES2409938A2 (en) 2013-06-28
ES2409938R1 ES2409938R1 (en) 2013-10-25
ES2409938B1 true ES2409938B1 (en) 2014-08-22

Family

ID=47665845

Family Applications (1)

Application Number Title Priority Date Filing Date
ES201132117A Withdrawn - After Issue ES2409938B1 (en) 2011-12-28 2011-12-28 Method and device for cathodic corrosion protection

Country Status (2)

Country Link
EP (1) EP2610369A3 (en)
ES (1) ES2409938B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11047595B2 (en) 2017-12-29 2021-06-29 Emerson Electric Co. Method and system for monitoring powered anode drive level
US10738385B2 (en) * 2017-12-29 2020-08-11 Emerson Electric Co. Method and system for controlling powered anode drive level
PT3848697T (en) * 2020-01-10 2023-03-02 Automa S R L Reference electrode for cathodic protection measurements
CN115216775B (en) * 2022-06-28 2024-04-26 国家管网集团浙江省天然气管网有限公司 Cathode protection system based on dynamic potential

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477931A (en) * 1965-03-30 1969-11-11 Mitsubishi Heavy Ind Ltd Method and apparatus for automatic electric corrosion-proofing
DE2916934C2 (en) * 1979-04-26 1981-05-07 Vereinigte Elektrizitätswerke Westfalen AG, 4600 Dortmund Method and device for maintaining cathodic protection against corrosion
IT1253258B (en) * 1991-08-14 1995-07-14 Cgr Di Cadignani Gino PROCESS OF MAINTENANCE OF A CATHODIC PROTECTION AGAINST CORROSION AND DEVICE FOR THE IMPLEMENTATION OF SUCH PROCESS
CA2073530A1 (en) * 1992-07-09 1994-01-10 John C. K. Overall Corrosion protection system
ITAN20050037A1 (en) * 2005-07-20 2007-01-21 Merloni Termosanitari Spa STORAGE WATER HEATER WITH ADJUSTABLE CATHODIC PROTECTION

Also Published As

Publication number Publication date
ES2409938R1 (en) 2013-10-25
EP2610369A2 (en) 2013-07-03
EP2610369A3 (en) 2016-11-23
ES2409938A2 (en) 2013-06-28

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