管道系统完整性评估技术进展及应用对策

Advancement and application measures of pipeline integrity assessment technology

全面探讨了管道系统完整性评估技术,线路完整性评估技术体系主要包括基线评估、试压评价、缺陷适用性评价、复杂地段管道评估、管道运行安全评估、外腐蚀直接评估(ECDA)、内腐蚀直接评估(ICDA)、应力腐蚀直接评估(SCCDA)等技术;场站完整性评估技术体系主要包括站场静设备泄漏及可靠性评估、动设备状态监测与故障诊断评估,具体包括场站风险评估技术、场站腐蚀检测与防护评估、场站运行状态安全评估等。针对管道系统完整性评估技术,提出了不同评价方法的适用范围,线路完整性评估技术重点阐述了复杂地区地段完整性评估技术的进展和应用,如并行管道完整性评估与应用、应力腐蚀评估、地区等级升级安全性评估、高钢级大口径全尺寸管道气体爆破试验完整性评估等技术的进展和成果;场站完整性评估技术重点阐述了场站工艺管路综合检测、阀门磨损与寿命分析、压缩机故障监测与诊断等技术的进展和成果。综合分析了目前管道完整性评估领域面临的问题,提出了进一步深化的发展方向和管理措施。(图5,参21)

Pipeline integrity assessment technology is comprehensively discussed in this paper. Pipeline integrity assessment system mainly includes baseline assessment, pressure testing assessment, defect applicability assessment, complex section pipeline assessment, safety assessment of pipeline operation, external corrosion direct assessment （ECDA）, internal corrosion direct assessment （ICDA）, stress corrosion direct assessment （SCCDA） and so on. Station integrity assessment system mainly includes leakage and reliability assessment for static equipment and state monitoring and fault diagnosis assessment for rotational equipments, specifically risk assessment technology, corrosion detection and protection and operation safety assessment for stations. In line with pipeline system integrity assessment technology, the applicable scopes of different assessment methods are proposed. Pipeline integrity assessment technology is mainly about the process and application of integrity assessment technology for complex areas and sections, such as integrity assessment and application of parallel sections, stress corrosion assessment, region upgrade safety assessment, gas blasting test integrity assessment for high grade large diameter full-size pipeline and so on. Station integrity assessment technology mainly introduces the development and achievements of technologies such as the comprehensive test of process pipeline in stations, wear and life analysis of valves, troubleshooting of compressors. Current problems in pipeline integrity assessment are comprehensively analyzed, and further development direction and management measures are also proposed. （5 Figures, 21 References）