乙烯工业 ›› 2018, Vol. 30 ›› Issue (4): 46-48.

• 压缩机 • 上一篇    下一篇

裂解气压缩机五段吸入罐液位升高的原因分析及处理

郭航,张静   

  1. 中国石油化工股份有限公司天津分公司,天津 300271
  • 收稿日期:2018-06-22 接受日期:2018-08-30 出版日期:2018-12-25 发布日期:2018-12-30
  • 作者简介:郭航,男,1992年毕业于天津石油化工学校化工工艺专业,主要从事压缩分离工段的生产操作与管理工作,高级技师。

Cause Analysis of Level Rise in Fifth-stage Suction Tank of Cracking Gas Compressor and the Countermeasures

Guo Hang,Zhang Jing   

  1. SINOPEC Tianjin Company,Tianjin,P.C.300271
  • Received:2018-06-22 Accepted:2018-08-30 Online:2018-12-25 Published:2018-12-30

摘要: 介绍了2018年4月天津乙烯装置裂解气压缩机五段吸入罐液位高报警频繁,因此情况出现在新增裂解气压缩机四段排出冷却器(EA207B)投用后,技术人员对裂解气压缩机五段吸入罐的液位计、工艺参数、冷却器(EA207/EA207B)压差等进行了检查确认,认为液位高报警是由于EA207结焦堵塞严重,导致出口管道成为“储液管”造成的。通过新增1条技改管道,将EA207出口管道中积存的水和烃排至急冷水塔,成功的解决了问题,消除了生产中存在的安全隐患,保证了装置的平稳运行。

关键词: 裂解气压缩机, 五段吸入罐液位, 报警原因分析

Abstract: In April 2018, high level alarms frequently went off in the fifth-stage suction tank of cracking gas compressor in the ethylene plant in Tianjin. Since this happened after the installation of the fourth-stage discharge cooler (EA207B), technical personnel checked the level gauge of the fifth-stage suction tank, the process parameters, and the pressure difference in cooler (EA207/EA207B). It was concluded that the serious coking and blockage in EA207 made the outlet pipe of EA207 a liquid storage pipe, thus resulting in the high level alarms. By adding a technical transformation pipeline, the water and hydrocarbons accumulated in the outlet pipe of EA207 were discharged to quench tower, successfully solving the problem, eliminating the potential safety hazards in production and ensuring the stable operation of the ethylene plant.

Key words: cracking gas compressor, level of fifth-stage suction tank, cause analysis of alarm