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。
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.
作者
杨帆
杨柯
马成
游笑辉
张平林
Yang Fan;Yang Ke;Ma Cheng;You Xiaohui;Zhang Pinglin(PetroChina Dushanzi Petrochemical Company,Dushanzi,Xinjiang,P.C.833699)
出处
《乙烯工业》
CAS
2020年第2期41-43,I0002,共4页
Ethylene Industry
关键词
裂解气大阀
防焦蒸汽
日常维护
pyrolysis gas valve
anti-scorching steam
daily maintenance
