Cathode protection method for pipeline and pipeline assembly
A technology of cathodic protection and pipeline assembly, which is applied in the field of pipeline assembly of pipeline joints, which can solve the problems of oil and gas leakage, explosion, corrosion, etc., and achieve the effect of prolonging the service life
Active Publication Date: 2013-06-19
BEIJING SAFETECH PIPELINE
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Problems solved by technology
The corroded part of the pipeline may be rusted, or perforated, resulting in oil and gas leakage or explosion
Method used
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0014] Wherein, the present invention is described by taking a steel buried pipeline as an example, but the present invention is not limited to the steel buried pipeline. The invention is equally applicable to other metal buried pipelines commonly used in engineering.
[0015] figure 1 Shown is a schematic diagram of a pipeline assembly 100 provided with a jointed cathodic protection device according to an embodiment of the present invention. The pipe as...
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Abstract
The invention provides a cathode protection method for a pipeline. The cathode protection method for a pipeline comprises the following steps of: providing a rectangular alloy material plate having a length which is greater than the perimeter of the pipeline as a sacrificial anode; winding the alloy material plate around the repaired mouth part of the pipeline, and lapping areas at the both ends of the alloy material plate; and fastening the alloy material plate on the pipeline via a fastener. The invention further provides a pipeline assembly. The pipeline assembly comprises an alloy material plate used as a sacrificial anode, wherein the length of the alloy material plate is greater than the perimeter of the pipeline, the alloy material plate is wound around the repaired mouth part of the pipeline, and the both ends of the alloy material plate are butted together; and a fastener is arranged around the alloy material plate and adapted to fasten the alloy material plate on the pipeline. The pipeline assembly is capable of playing a protective role on a metal pipeline in the repaired mouth structure of the pipeline, thus prolonging the service life of structure of the pipeline.
Description
technical field [0001] The invention relates to cathodic protection of pipelines, in particular to a cathodic protection method for buried pipeline joints and pipeline components including pipeline joints. Background technique [0002] The reinforcement technology of buried pipelines such as steel buried pipelines is to use the high-strength properties of fiber materials in the fiber direction, and use a bonding resin to coat a composite reinforcement layer on the outside of the service pipeline to restore the service strength of the defective pipeline. . The advantage of this technology is that it does not need to be welded on the service pipeline, avoiding the possibility of welding through, hydrogen embrittlement and cold embrittlement, greatly reducing the risk of operation, and can repair the pipeline under pressure to ensure the smooth operation of the pipeline. continuity. For example, the tensile strength of carbon fiber materials exceeds 3500MPa, which is much gre...
Claims
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IPC IPC(8): C23F13/06F16L58/00
Inventor 路民旭张颖怀王修云
Owner BEIJING SAFETECH PIPELINE