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Novel method for measuring buried steel pipe corrosion rate

A technology of corrosion rate and acquisition method, applied in weather resistance/light resistance/corrosion resistance, instruments, measuring devices, etc., can solve systematic research on interference of buried steel pipes, no AC overhead transmission lines, lack of evaluation standards and methods, etc. problems, to achieve the effect of scientific evaluation results

Active Publication Date: 2017-08-04
SHENZHEN POWER SUPPLY BUREAU +1
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Problems solved by technology

[0004] To sum up, from the perspective of the existing technology, there is no complete and systematic research on the interference of AC overhead transmission lines on buried steel pipes, and the domestic steel pipe external corrosion control regulations and the standards of the electric power industry are only roughly stipulated. For the location of buried steel pipelines and high-voltage transmission lines, there is still a lack of executable evaluation standards and methods for the influence of factors such as intersection angles and parallel distances between pipelines and high-voltage lines on interference levels

Method used

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  • Novel method for measuring buried steel pipe corrosion rate

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, a schematic diagram of the main process of an embodiment of a novel method for obtaining the corrosion rate of buried steel pipes provided by the present invention is shown. In this embodiment, the method includes:

[0029] Step S10, establishing a basic model of the soil corrosion rate, using the soil corrosion rate as the corrosion rate of the buried steel pipe foundation; specifically, the following steps are included:

[...

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Abstract

The invention discloses a novel method for measuring buried steel pipe corrosion rate, which comprises the following steps: (1) establishing a basic model of soil corrosion rate (the soil corrosion rate is used as the basic corrosion rate of a buried steel pipe); (2) determining influence correction factors of an alternating current overhead power transmission line according to an included angle of the alternating current overhead power transmission line and the buried steel pipe; and (3) obtaining the buried steel pipe corrosion rate according to the basic corrosion rate of the buried steel pipe and the influence correction factors of the alternating current overhead power transmission line. Through implementing the method of the invention, the pipe corrosion status in the practical work can be accurately obtained.

Description

technical field [0001] The invention relates to the technical fields of power transmission and distribution and pipeline anticorrosion, in particular to a novel acquisition method for the corrosion rate of buried steel pipes. Background technique [0002] Due to the very limited land area of ​​the city, the crossover between underground pipelines and power transmission and transformation facilities is very serious. The situation that high-voltage transmission lines and gas pipelines are close to or cross over is very serious. According to the national standard GB50028-2006 "Code for Design of Urban Gas", most of the distances between urban gas pipelines and high-voltage transmission lines or tower grounding electrodes do not meet the requirements. The standard does not give remedial measures and treatment methods. In order to eliminate a series of safety hazards and accident disputes caused by the distance not meeting the national standard, it is urgent to carry out in-dept...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 李勋黄荣辉姚森敬刘顺桂伍国兴徐曙王有元祝小松李后英
Owner SHENZHEN POWER SUPPLY BUREAU
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