CFD技术在大型化裂解炉返炉膛配管研究中的应用

乙烯工业 ›› 2024, Vol. 36 ›› Issue (1): 33-36.

CFD技术在大型化裂解炉返炉膛配管研究中的应用

林江峰，肖佳

中国石化工程建设有限公司，北京 100101

收稿日期:2024-01-10 修回日期:2024-02-19 出版日期:2024-03-25 发布日期:2024-03-28
作者简介:林江峰，男，2017年毕业于北京化工大学材料科学与工程专业，获工学硕士学位，现从事裂解炉工艺的设计工作，工程师，已发表论文2篇。

Application of CFD Technology in the Research on Piping Layout for Recycling Decoking Effluent to Firebox of Large-Scale Cracking Furnace

Lin Jiangfeng, Xiao Jia

SINOPEC Engineering Incorporation, Beijing, P.C.100101

Received:2024-01-10 Revised:2024-02-19 Online:2024-03-25 Published:2024-03-28

摘要/Abstract

摘要：

返炉膛烧焦是降低裂解炉污染物排放的有效措施之一，返炉膛配管布置对返炉膛烧焦效果有很大影响。文章应用CFD技术对返炉膛配管布置进行数值模拟。计算采用RNG k-ε湍流模型进行模拟，采用壁面函数Standard Wall Fn对近壁面流动修正。计算结果表明：合理的返炉膛配管布置可使烧焦气均匀进入炉膛，不会对正常的操作产生影响。基于CFD技术的模拟计算能够较为准确的预测返炉膛烧焦气在管线内的流动情况，为裂解炉大型化下的返炉膛配管布置提供了技术参考。

关键词: 裂解炉 , CFD 返炉膛 , 配管烧焦气

Abstract:

Recycling decoking effluent to firebox of cracking furnace is one of the effective measures to reduce pollutant emissions from the cracking furnace, and the piping layout for recycling decoking effluent to firebox has a significant impact on the decoking effect. This article uses CFD technology to numerically simulate the piping layout for recycling decoking effluent to firebox. RNG k- ε turbulence model is used for the simulation, and the wall function Standard Wall Fn is used to correct the near wall flow. The calculation results indicate that a reasonable piping layout can ensure the even entry of decoking effluent into the firebox without affecting the normal operation. The simulation calculation based on CFD technology can accurately predict the flow of decoking effluent in pipelines, providing technical reference for the piping layout for recycling decoking effluent to firebox of large-scale cracking furnace.

Key words: cracking furnace, CFD, recycling to firebox, piping, decoking effluent

林江峰, 肖佳. CFD技术在大型化裂解炉返炉膛配管研究中的应用[J]. 乙烯工业, 2024, 36(1): 33-36.

Lin Jiangfeng, Xiao Jia. Application of CFD Technology in the Research on Piping Layout for Recycling Decoking Effluent to Firebox of Large-Scale Cracking Furnace[J]. Ethylene Industry, 2024, 36(1): 33-36.

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