Device for simulating flowing of corrosion inhibitor in pipeline and corrosion inhibitor effect evaluation method

By simulating the flow device and evaluation method of corrosion inhibitor in pipelines, the problems of simulating complex medium environments and insufficient pipe diameter adjustment in existing technologies are solved, accurate simulation and quantitative evaluation of the flow state of corrosion inhibitors are achieved, and the reliability and scientificity of the experimental results are improved.

CN120801164AActive Publication Date: 2025-10-17CHINA SPECIAL EQUIP INSPECTION & RES INST
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Patent Information

Application Number
CN202511094171.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2025-10-17
Estimated Expiration
2045-08-06

AI Technical Summary

Technical Problem

Existing simulation devices have difficulty simulating the flow state of corrosion inhibitors in complex media environments, and cannot flexibly adjust the pipe diameter, resulting in a large deviation between the experimental results and actual industrial scenarios. Existing evaluation methods are highly subjective and lack quantitative basis, making it difficult to accurately evaluate the protective capabilities of corrosion inhibitors.

Method used

A device for simulating the flow of corrosion inhibitor in pipelines is provided. It adopts a variable pipe diameter design and multiple filling methods, combined with image acquisition, flow velocity sensor and electrochemical detection, to achieve comprehensive simulation and quantitative evaluation of the flow state of the corrosion inhibitor. The hierarchical analysis method and fuzzy comprehensive evaluation method are used for comprehensive evaluation.

Benefits of technology

It improves the consistency between experimental results and actual industrial scenarios, realizes accurate simulation and quantitative evaluation of the flow state of corrosion inhibitors, and provides a scientific reference for the selection and use of corrosion inhibitors.

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Abstract

The invention discloses a device for simulating flowing of a corrosion inhibitor in a pipeline and a corrosion inhibitor effect evaluation method, the device comprises a corrosion inhibitor filling cabin, a corrosion inhibitor experiment cabin and acquisition equipment, and is used for experimenting and acquiring data required by the evaluation method, and the evaluation method comprises the following steps: acquiring evaluation index data of a corrosion inhibitor to be tested; inputting the evaluation index data into a preset evaluation model, and obtaining a comprehensive evaluation score output by the preset evaluation model; and determining an evaluation grade corresponding to the comprehensive evaluation score in the target preset score interval, and outputting the comprehensive evaluation score and the evaluation grade of the corrosion inhibitor to be tested. The device adopts a modularly-designed pipe diameter-variable simulation pipeline assembly, and can realize multi-condition simulation such as adjustable injection points and various corrosion inhibitor injection modes. According to the effect evaluation method, a mode of combining an analytic hierarchy process and a fuzzy comprehensive evaluation method is adopted, multi-dimensional and complex data is converted into visual and practical evaluation, and quantitative evaluation of the corrosion inhibition effect is achieved.
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