pyrolysis gas valve,anti-scorching ,steam,daily maintenance,"/> 裂解气大阀防焦蒸汽线堵塞原因分析及处理措施

乙烯工业 ›› 2020, Vol. 32 ›› Issue (2): 41-43.

• 裂解炉 • 上一篇    下一篇

裂解气大阀防焦蒸汽线堵塞原因分析及处理措施

  帆,杨  柯,马  成,游笑辉,张平林   

  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:2019-10-24 出版日期:2020-06-25 发布日期:2020-07-02
  • 作者简介:杨帆,男,2013年毕业于西安石油大学过程装备与控制工程专业,主要从事设备管理和维护工作,工程师。

Cause analysis and Countermeasures for Blockage of Anti-scorching Steam Line of Transfer Line Valve

Yang Fan, Yang Ke, Ma Cheng, You Xiaohui, Zhang Pinglin   

  1. Zhang Pinglin. PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, P.C.833699
  • Received:2019-10-24 Online:2020-06-25 Published:2020-07-02

摘要:

介绍了独山子石化220 kt/a乙烯装置裂解炉裂解气大阀的结构特点和工作原理,分析了防焦蒸汽对裂解气大阀的作用以及防焦蒸汽线堵塞原因。通过采取蒸汽线阀后注入点手阀前增加法兰、增加蒸汽管线伴热、加强日常维护等一系列措施,成功消除了裂解气大阀防焦蒸汽堵塞的隐患。

关键词: 裂解气大阀 ,  , 防焦蒸汽 ,  , 日常维护

Abstract:

 The structure characteristics and working principle of transfer line valve in the cracking furnace of the 220 kt/a ethylene plant at PetroChina Dushanzi Petrochemical Company are analyzed. The effect of anti-scorching steam on transfer line valve and the causes of the blockage of anti-scorching steam line are analyzed. By taking a series of measures including installing flanges downstream the steam line valve and upstream the injection point hand valve, installing heat tracing for steam lines and strengthening daily maintenance, the hidden danger of anti-scorching steam line blockage of transfer line valve was successfully eliminated.

Key words: pyrolysis gas valve')">pyrolysis gas valve,  ')">anti-scorching , ')">steam, daily maintenance