GB1467894A - Arrangement for cathodic protection - Google Patents

Arrangement for cathodic protection

Info

Publication number
GB1467894A
GB1467894A GB1429274A GB1429274A GB1467894A GB 1467894 A GB1467894 A GB 1467894A GB 1429274 A GB1429274 A GB 1429274A GB 1429274 A GB1429274 A GB 1429274A GB 1467894 A GB1467894 A GB 1467894A
Authority
GB
United Kingdom
Prior art keywords
anode
carrier
wall
passage
valve
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
Application number
GB1429274A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1467894A publication Critical patent/GB1467894A/en
Expired 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

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

1467894 Cathodic protection assembly SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 April 1974 [3 April 1973] 14292/74 Heading C7E A metal wall or structural element 14 is cathodically protected by a removable elongated anode carrier provided with an anode 1 at one end, the carrier lying partly within a passage in wall 14 and partly within the bore of a valve 20, said bore and passage being aligned, and said valve being adapted to close said passage when the carrier is removed, there being means to retain the carrier in its operative position but also permitting retraction thereof for removal at the inner side of the wall. As shown, anode 1 is of Nb coated with Pt, 2 is epoxy resin filler, and current is supplied to the anode by conductors 13, 12, 6 and 3. The anode carrier comprises conductor 6, epoxy resin filler 5 and guide casing 4; restrictions 7 in casing 4 cooperate with hinged clamps 8 and 9 to position the carrier; a keyway and co-acting key prevent rotation thereof. Stainless steel scraper 17 assists withdrawal of the carrier; the arrangement between numerals 19 and 26 holds the retracted carrier while valve 20 is closed. A plurality of restrictions 7 make the distance anode to wall 14 variable; the anode may be streamlined to reduce its resistance to liquid flowing past it, e.g. when wall 14 is part of a ship's hull; the anode may be Zn, Mg, or for impressed current protection, Ti, Ta or Nb coated with Pt.
GB1429274A 1973-04-03 1974-04-01 Arrangement for cathodic protection Expired GB1467894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7304591A NL7304591A (en) 1973-04-03 1973-04-03

Publications (1)

Publication Number Publication Date
GB1467894A true GB1467894A (en) 1977-03-23

Family

ID=19818558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1429274A Expired GB1467894A (en) 1973-04-03 1974-04-01 Arrangement for cathodic protection

Country Status (4)

Country Link
JP (1) JPS49129648A (en)
DE (1) DE2415732A1 (en)
GB (1) GB1467894A (en)
NL (1) NL7304591A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243619A (en) * 1990-05-04 1991-11-06 William Newsam Mounting a sacrificial anode in the hull of a boat
WO2001007681A2 (en) * 1999-07-27 2001-02-01 Merloni Termosanitari S.P.A. A device for the cathodic protection of boiler tanks and similar apparatus
GB2434374A (en) * 2006-01-20 2007-07-25 Malcolm John Perrins Immersed electrode
WO2013190314A1 (en) * 2012-06-20 2013-12-27 E M & I (Maritime) Limited Cathodic protection system
WO2015079199A1 (en) * 2013-11-27 2015-06-04 Em&I (Maritime) Limited Apparatus and method for inspecting flooded cavities in a floating offshore installation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200221A1 (en) * 1982-01-07 1983-07-14 Maschinenfabrik Hellmut Geiger Gmbh & Co Kg, 7500 Karlsruhe Impressed-current anode
US8870233B2 (en) 2007-07-03 2014-10-28 S.P.M. Flow Control, Inc. Swivel joint with uniform ball bearing requirements
EP2422120B1 (en) 2009-04-20 2016-05-25 S.P.M. Flow Control, Inc. Flowline flapper valve
US8465001B2 (en) 2009-06-03 2013-06-18 S.P.M. Flow Control, Inc. Plug valve indicator
CN104685274B (en) 2012-08-16 2017-03-08 S.P.M.流量控制股份有限公司 There is the plunger valve of prestrain hermetic unit
US9273543B2 (en) 2012-08-17 2016-03-01 S.P.M. Flow Control, Inc. Automated relief valve control system and method
US9322243B2 (en) 2012-08-17 2016-04-26 S.P.M. Flow Control, Inc. Automated relief valve control system and method
USD707332S1 (en) 2013-03-15 2014-06-17 S.P.M. Flow Control, Inc. Seal assembly
CA2916699A1 (en) 2013-07-01 2015-01-08 S.P.M. Flow Control, Inc. Manifold assembly
CN107850243A (en) 2015-06-15 2018-03-27 S.P.M.流量控制股份有限公司 Full root radius screw thread wing nut with increase wall thickness
US10677365B2 (en) 2015-09-04 2020-06-09 S.P.M. Flow Control, Inc. Pressure relief valve assembly and methods

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243619A (en) * 1990-05-04 1991-11-06 William Newsam Mounting a sacrificial anode in the hull of a boat
GB2243619B (en) * 1990-05-04 1995-01-11 William Newsam Cathodic protection for boats
WO2001007681A2 (en) * 1999-07-27 2001-02-01 Merloni Termosanitari S.P.A. A device for the cathodic protection of boiler tanks and similar apparatus
WO2001007681A3 (en) * 1999-07-27 2001-05-10 Merloni Termosanitari Spa A device for the cathodic protection of boiler tanks and similar apparatus
GB2434374A (en) * 2006-01-20 2007-07-25 Malcolm John Perrins Immersed electrode
GB2434375A (en) * 2006-01-20 2007-07-25 Malcolm John Perrins Immersed electrode assembly
GB2434375B (en) * 2006-01-20 2008-09-03 Malcolm John Perrins Immersed electrode assembly
WO2013190314A1 (en) * 2012-06-20 2013-12-27 E M & I (Maritime) Limited Cathodic protection system
WO2015079199A1 (en) * 2013-11-27 2015-06-04 Em&I (Maritime) Limited Apparatus and method for inspecting flooded cavities in a floating offshore installation
US10011145B2 (en) 2013-11-27 2018-07-03 Em&I (Martime) Limited Apparatus and method for inspecting flooded cavities in a floating offshore installation

Also Published As

Publication number Publication date
DE2415732A1 (en) 1974-10-17
JPS49129648A (en) 1974-12-12
NL7304591A (en) 1974-10-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee