Corrosion-protected metal construction in the form of a pipeline
AssigneeAker Offshore Partner AS
InventorTorfinn Havn
Life of this patent
Estimating the term…
Abstract
An account has been given for corrosion-protection of metal constructions, e.g. in the form of a pipeline consisting of interconnected pipelines (10, 10a, 10b, 10c, 10d) and, possibly, incorporatable in a larger pipe system. Said metal construction is, for purpose of corrosion-protection, assigned one or more sacrificial anodes in the form of one or more bodies made of a metal or a metal alloy which is less noble than the metal to be corrosion-protected. In order to utilize the sacrificial anode(s) beyond its corrosion-protecting ability within said construction, said one or more sacrificial anode bodies are included in the metal construction as at least one functional part thereof, e.g. in the form of at least one pipe length (10).
Claims5
A corrosion-protected metal construction in the form of a pipeline comprised of interconnected pipe lengths (10, 10a, 10b, 10c, 10d), wherein said metal construction, for the purpose of corrosion-protection, includes one or more sacrificial anodes in the form of one or more bodies of a metal or metal alloy which is less noble in relation to the more noble metal of the pipe lengths to be corrosion-protected, said sacrificial anode comprising a functional part of the metal construction in the form of a length of carbon steel pipe, the steel to be protected in the construction comprising stainless steel which is noble in relation to carbon steel, and wherein an electrical resistor (14) has been disposed between the pipe length (10) comprising the sacrificial anode and adjacent pipe lengths (10a, 10b).
Dependencies are inferred from the claim text.