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Corrosion-resistant bimetal composite pipe based on cathode protection and preparation method of corrosion-resistant bimetal composite pipe

A bimetallic composite pipe and corrosion-resistant metal technology, applied in pipeline protection, pipeline anticorrosion/rust protection, pipes, etc., can solve problems that affect the safety and service life of pipelines, pipeline leakage safety accidents, casualties, etc., to achieve Improve the overall anti-corrosion performance, easy cold expansion and deformation, and prolong the service life

Pending Publication Date: 2022-06-24
西安德信成科技有限责任公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] In the pipeline transportation of petroleum and natural gas, as well as petroleum refining and chemical raw material production enterprises, a large number of pipelines have been operating in an environment with corrosive media for a long time, resulting in serious corrosion on the inner surface of the pipeline, which directly affects the safety and service life of the pipeline. Major safety accidents caused by pipeline leakage, resulting in material loss, environmental pollution, and even serious consequences of casualties, the use of bimetallic composite pipes is an effective means to solve such anti-corrosion problems

Method used

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  • Corrosion-resistant bimetal composite pipe based on cathode protection and preparation method of corrosion-resistant bimetal composite pipe

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Embodiment Construction

[0027] In order to better understand the technical solutions of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0030] The invention provides a corrosion-resist...

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Abstract

The invention provides a corrosion-resistant bimetal composite pipe based on cathode protection and a manufacturing method of the corrosion-resistant bimetal composite pipe. The corrosion-resistant bimetal composite pipe comprises an outer-layer basic metal pipe and an inner-layer corrosion-resistant metal pipe, an annular gap between the outer-layer basic metal pipe and the inner-layer corrosion-resistant metal pipe is filled with metal glue with a sealing effect and a bonding effect at equal intervals; the inner-layer corrosion-resistant metal pipe is physically compounded with the outer-layer basic metal pipe through a mechanical cold expanding deformation method; according to the corrosion-resistant metal pipe, the problem that the inner surface of a pipeline is corroded when petroleum and natural gas pipeline conveying and petroleum refining and chemical raw material production enterprises convey corrosive medium fluid is effectively solved, the use safety of the pipeline is improved, and the service life of the pipeline is prolonged.

Description

【Technical field】 [0001] The invention relates to the technical field of structure and manufacture of pipelines that require internal surface anti-corrosion used in oil and gas exploration and development, oil and gas pipeline transportation, petrochemical industry, etc., in particular to a corrosion-resistant bimetallic composite pipe based on cathodic protection and a preparation method thereof. 【Background technique】 [0002] In the pipeline transportation of oil and natural gas, as well as the production of petroleum refining and chemical raw materials, a large number of pipelines have been operated in an environment with corrosive media for a long time, resulting in serious corrosion of the inner surface of the pipeline, which directly affects the safety and service life of the pipeline. Major safety accidents caused by pipeline leakage, resulting in material loss, environmental pollution, and even serious consequences of casualties, the use of bimetallic composite pipes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/04F16L58/08C23F13/16B21C37/06B21D39/04B21D39/08
CPCF16L9/04F16L58/08C23F13/16B21C37/06B21D39/046B21D39/08C23F2213/32
Inventor 马晓峰张海兵
Owner 西安德信成科技有限责任公司
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