乙烯工业 ›› 2025, Vol. 37 ›› Issue (3): 9-13.

• 压缩机 • 上一篇    下一篇

乙烯装置压缩机干气密封系统应用实践

张江平,杨  荥,沈国峰,沈顺弟   

  1. 上海赛科石油化工有限责任公司,上海 201507
  • 收稿日期:2024-05-10 修回日期:2025-01-10 出版日期:2025-09-25 发布日期:2025-09-28
  • 作者简介:张江平,男,1988年毕业于浙江大学动态测试技术专业,硕士,长期从事乙烯装置转动设备运行维护管理和振动信号分析诊断工作,现任转动设备专家,高级工程师。

Application and Practice of Dry Gas Seal Systems in Compressors of Ethylene Plants

Zhang Jiangping, Yang Xing, Shen Guofeng, Shen Shundi   

  1. Shanghai SECCO Petrochemical Co., Ltd., Shanghai, P.C.201507
  • Received:2024-05-10 Revised:2025-01-10 Online:2025-09-25 Published:2025-09-28

摘要:

某公司1 190 kt/a乙烯装置中, 7台离心压缩机组采用干气密封系统。在生产中,出现干气密封系统故障或损坏造成裂解气压缩机组联锁停车的情况。简要说明了干气密封系统的原理和控制,并通过历年来某公司乙烯装置压缩机组干气密封应用中的多个典型案例,总结了现场实用经验和应用建议。

关键词: 压缩机  , 干气密封  , 故障分析

Abstract:

In a 1,190 kt/a ethylene plant, seven centrifugal compressors utilizes dry gas seal system. During operation, the failure or damage of the dry gas seal system resulted in the interlock shutdown of cracking gas compressor. This paper briefly explains the principle and control of dry gas seal system, and summarizes the on-site practical experience and application suggestions through typical cases of dry gas seal application over the years.

Key words: compressor, dry gas seal, failure analysis