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Pipeline corrosion detection method and equipment thereof

A corrosion detection and pipeline technology, which is applied in the pipeline system, mechanical equipment, weather resistance/light resistance/corrosion resistance, etc., to achieve the effect of solving and applying conveniently and quickly, and improving the accuracy of the solution

Active Publication Date: 2020-12-04
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical applications, the determination of corrosion points and data analysis are faced with the problem of multi-valued corrosion pit parameters, that is, corrosion pits with small areas and large depths in the detection area have the same value as corrosion pits with large areas and small depths. feature

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  • Pipeline corrosion detection method and equipment thereof
  • Pipeline corrosion detection method and equipment thereof
  • Pipeline corrosion detection method and equipment thereof

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0024] The electrodes can be arranged on the surface of the pipeline in various forms according to actual needs, and multiple electrodes can be arranged on the surface of the pipeline in an evenly distributed array. For example, for a 4*7 electrode array, its setting method can be found in Figure 1a and Figure 1b middle. Such as Figure 1a a...

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Abstract

The embodiment of the invention discloses a pipeline corrosion detection method and equipment thereof. Compared with a traditional pitting signal calculation method in the prior art, the provided method has the following advantages: measurement characteristic values corresponding to the electrode pairs composed of two adjacent electrodes are determined, the multiple measurement fingerprint characteristics are determined according to the measurement characteristic values corresponding to the electrode pairs and the standard characteristic values, and the set containing the multiple measurementfingerprint characteristics is generated; according to the method, the average fingerprint characteristic of the set is determined, the difference square of each measurement fingerprint characteristicrelative to the average fingerprint characteristic is calculated, the corrosion point position is determined according to the difference square, the solving precision of the corrosion point positioncan be effectively improved, and solving and application are very convenient and rapid. The method can be widely applied to scenes with complex material systems, multiple detection parts and very highdata processing speed requirements.

Description

technical field [0001] This specification relates to the field of engineering control, in particular to a pipeline corrosion detection method and its equipment. Background technique [0002] In engineering applications such as oil pipelines, refining and chemical industry, and bridge monitoring, it is a kind of high-precision detection of defects, cracks, corrosion and their expansion of metal structures based on the small changes in electric field characteristics on the surface of the measured object. widely used technology. However, in practical applications, the determination of corrosion points and data analysis are faced with the problem of multi-valued corrosion pit parameters, that is, corrosion pits with small areas and large depths in the detection area have the same value as corrosion pits with large areas and small depths. feature. [0003] Based on this, a more accurate pipeline corrosion detection scheme is needed. Contents of the invention [0004] The pur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/02F17D5/06
CPCG01N17/02F17D5/06Y02E30/30
Inventor 李焰蒋涛姚万鹏吴承昊
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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