一种压力管道杂散电流安全评估方法及装置

By combining AC and DC stray currents and current-carrying potentials in a comprehensive evaluation method, and utilizing pipeline steel specimen cathodic protection polarization potential testing and miniature physical specimens, the problem of insufficient evaluation accuracy in existing technologies has been solved, achieving a more comprehensive and efficient safety assessment of pressure pipelines.

CN117250148BActive Publication Date: 2026-07-17HEBEI INST OF SPECIAL EQUIP SUPERVISION & INSPECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI INST OF SPECIAL EQUIP SUPERVISION & INSPECTION
Filing Date
2023-09-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for assessing the safety of stray currents in pipelines fail to comprehensively analyze the effects of AC/DC stray currents and current-carrying potential, resulting in insufficient assessment accuracy.

Method used

A safety assessment method for stray current in pressure pipelines is adopted, which combines AC stray current, DC stray current and current potential. The safety of pressure pipelines under the coupling of these three factors is determined by testing the cathodic protection polarization potential of pipeline steel specimens and using miniature physical specimens.

Benefits of technology

This improves the comprehensiveness, completeness, and efficiency of pressure pipeline safety assessments, and enhances the accuracy of assessment results.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种压力管道杂散电流安全评估方法及装置，属于压力管道安全管理技术领域；包括以下步骤：步骤一，获取压力管道所受交流杂散电流的交流电流密度、直流电流密度、通电电位和管线钢试片阴极保护极化电位；步骤二，根据交流电流密度、直流电流密度、通电电位确定压力管道在三者耦合下的压力管道杂散电流安全性可接受程度；并将管线钢试片阴极保护极化电位偏移作为日常快捷评估，确定压力管道杂散电流安全性可接受程度；本发明的压力管道杂散电流安全评估方法及装置，确定压力管道在交、直流杂散电流、通电电位三者耦合下的压力管道杂散电流安全性可接受程度，使得压力管道安全评估方法更加全面。
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