乙烯工业 ›› 2023, Vol. 35 ›› Issue (4): 53-57.

• 压缩机 • 上一篇    下一篇

乙烯装置三机检修过程中的问题及解决对策

洪  琨,刘泽涵,米孜拉夫·麦麦提,朱  斌,陈  权   

  1. 中国石油天然气股份有限公司独山子石化分公司,新疆 独山子 833699
  • 收稿日期:2022-01-04 修回日期:2023-09-20 出版日期:2023-12-25 发布日期:2023-12-19
  • 作者简介:洪琨,男,2016年毕业于新疆大学化学工程与工艺专业,硕士,主要从事乙烯生产管理工作,工程师。

Problems in Maintenance of Three Key Compressors in Ethylene Plant and the Countermeasures

Hong Kun, Liu Zehan, Mizilafu•Maimaiti, Zhu Bin, Chen Quan   

  1. PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, P.C.833600
  • Received:2022-01-04 Revised:2023-09-20 Online:2023-12-25 Published:2023-12-19

摘要: 裂解气压缩机、乙烯和丙烯制冷压缩机是乙烯装置的核心设备,其能否保持高效运行对装置的“安稳长满优”运行极其重要。介绍了中国石油独山子石化分公司1 000 kt/a乙烯装置三机检修过程中出现的问题,并结合工艺运行数据分析了裂解气压缩机高压缸叶轮冲蚀,结焦和汽封腐蚀的根本原因。同时,针对裂解气压缩机抽汽法兰泄漏,乙烯和丙烯制冷压缩机透平高压阀阀芯脱落和阀杆填料漏气等问题,提出了检修控制手段和解决措施。

关键词: 乙烯装置  , 透平  , 压缩机  , 检修

Abstract:

Cracking gas compressor, ethylene refrigeration compressor and propylene refrigeration compressor are the core equipment of ethylene plant, and their high-efficiency operation is extremely important to the safe, stable, long-term, full-load and optimum operation of ethylene plant. This article focuses on the problems that occurred during the maintenance of three key compressors in the 1000 kt/a Ethylene Plant of PetroChina Dushanzi Petrochemical Company, and analyzes the root causes of the impeller erosion, coking and gas seal corrosion in the high pressure cylinder of cracking gas compressor based on process operation data. At the same time, in view of the leakage of extraction flange of cracking gas compressor, the detached spool of high pressure valve of ethylene and propylene refrigeration turbines and the air leakage of valve stem packing, some maintenance control methods and countermeasures are proposed.

Key words: ethylene plant, turbine, compressor, maintenance