Ethylene Industry ›› 2025, Vol. 37 ›› Issue (2): 53-57.

• CRACKING FURNACE • Previous Articles     Next Articles

Stress Analysis and Engineering Application of Risers and Downcomers for Ethylene Cracking Furnaces

Tang Wei.    

  1. Tianhua Institute of Chemical Machinery & Automation Co., Ltd,Lanzhou,Gansu, P.C.730060

  • Received:2024-07-16 Revised:2025-02-15 Online:2025-06-25 Published:2025-06-25
  • About author:唐蔚,男,2012年毕业于南京工业大学过程装备与控制工程专业,学士,从事裂解炉的燃烧系统和急冷系统的研发工作,高级工程师。

Abstract:

As the pipes connecting steam drum and quench heat exchanger, risers and downcomers are an important part of the quench system for ethylene cracking furnace. In order to ensure the safe, stable and long-term operation of ethylene plant and the reliable use of quench system, it is necessary to carry out a reasonable design and stress analysis of the risers and downcomers. This article introduces the stress analysis process of risers and downcomers, and summarizes the problems and solutions encountered during stress analysis based on the specific example of a project.

Key words: ethylene cracking furnace, quench system, riser and downcomer, stress analysis