乙烯制冷压缩机 , 冷剂消耗 , 干气密封 ," /> 乙烯制冷压缩机 , 冷剂消耗 , 干气密封 ,"/> <b>乙烯制冷压缩机冷剂消耗增大原因分析与处理</b>

乙烯工业 ›› 2022, Vol. 34 ›› Issue (1): 45-46.

• 压缩机 • 上一篇    下一篇

乙烯制冷压缩机冷剂消耗增大原因分析与处理

  臣,刘  东,刘二龙,王青军   

  1. 中国石油天然气股份有限公司辽阳石化分公司,辽宁 辽阳 111003
  • 收稿日期:2020-12-14 修回日期:2021-11-16 出版日期:2022-03-25 发布日期:2022-03-25
  • 作者简介:王臣,男,2011年毕业于中国石油大学(华东)过程装备与控制工程专业,学士,主要从事化工设备管理工作,现任主任助理,工程师。

CAUSE ANALYSIS AND TREATMENT OF INCREASING REFRIGERANT CONSUMPTION OF ETHYLENE COMPRESSOR[ ]

Wang Chen, Liu Dong, Liu Erlong, Wang Qingjun.    

  1. PetroChina Liaoyang Petrochemical Company, Liaoyang, Liaoning, P.C.111003

  • Received:2020-12-14 Revised:2021-11-16 Online:2022-03-25 Published:2022-03-25

摘要:

某裂解装置乙烯制冷压缩机在大检修开车后出现冷剂消耗过大、制冷效果差的现象,对装置的制冷系统造成了一定的影响。通过初步排查,认为冷剂消耗过大的原因是乙烯介质内氮气含量超标,导致制冷效果变差。通过对机组干气密封结构和现场进一步检查研究发现,由于干气密封二级进气管线接口与密封腔引压管接口在检修过程中接反,导致氮气在机组运行时进入压缩机机体内,混入乙烯介质中,从而导致制冷效果变差。

关键词:

乙烯制冷压缩机 ')">"> 乙烯制冷压缩机 , 冷剂消耗 , 干气密封

Abstract:

The ethylene compressor of a cracking plant was started up after overhaul, and its over high refrigerant consumption and poor refrigeration effect had a certain impact on the refrigeration system. Through preliminary investigation, it was considered that the over high refrigerant consumption was due to the excessive nitrogen content of ethylene medium, which led to poor refrigeration effect. Further investigation on the dry gas seal structure of compressor unit and the site showed that nitrogen entered the compressor and mixed with ethylene medium due to the reverse connection of the secondary air inlet line with the pressure line of seal cavity, resulting in poor refrigeration effect.

Key words: ethylene compressor, refrigerant consumption, dry gas seal