EVA 装置 K8 型超高压二次压缩机故障分析与对策

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作者单位:: 中国石油独山子石化公司
Dushansi Petrochemical Branch, PetroChina Company Limited

关键词:: 二次压缩机；EVA 装置；故障诊断；密封失效；振动超标
hyper compressor package; EVA plant; fault diagnosis; seal failure; excessive vibration

摘要:: 超高压二次压缩机是乙烯-醋酸乙烯共聚树脂（EVA）装置的核心装备之一，其操作压力

高、难度大、故障率高，影响装置长周期稳定运行。文中结合某石化公司 K8 型二次压缩机的结

构特性与运行工况，系统分析其故障成因；基于专业维护经验与现代诊断技术的融合，总结了

针对性的检测、处理与预防措施，构建了“预防—诊断—处理—优化”的全周期闭环运维体系，

切实保障了超高压 EVA 装置的长周期稳定运行。

The ultra-high pressure hyper compressor package is one of the core pieces of equipment in an EVA plant. It operates
under high pressure with great difficulty and a high failure rate, which affects the long-term stable operation of the plant. Based on
the structural characteristics and operating conditions of a K8 type hyper compressor package in a petrochemical company, this
paper systematically analyzes the causes of its failures. By integrating professional maintenance experience with modern diagnostic
techniques, targeted measures for detection, treatment, and prevention are summarized. A full-cycle closed-loop operation and
maintenance system encompassing "prevention-diagnosis-treatment-optimization" is established, effectively ensuring the long -
term stable operation of the ultra-high pressure EVA plant.