裂解炉 ,辐射盘管 ,COT套管 ,热电偶," /> 裂解炉 ,辐射盘管 ,COT套管 ,热电偶,"/> Design and Manufacture of a New Type of COT for Radiant Coil of Cracking Furnace

Ethylene Industry ›› 2021, Vol. 33 ›› Issue (2): 59-61.

• CRACKING FURNACE • Previous Articles     Next Articles

Design and Manufacture of a New Type of COT for Radiant Coil of Cracking Furnace

Xue Lei   

  1. SINOPEC Engineering Incorporation, Beijing, P.C.100101
  • Received:2021-02-23 Revised:2021-04-28 Online:2021-06-25 Published:2021-06-18

Abstract:

This paper introduces the design and manufacturing technology of a new type of COT for radiant coil of cracking furnace, analyzes the causes of erosion and corrosion of COT sleeve of existing cracking furnace, and optimizes the structure design, material selection and manufacturing scheme of COT and base tube. After a series of tests, the stability of cot sleeve for long-term operation of cracking furnace is ensured.

Key words: cracking furnace, radiant coils, COT sleeve, thermocouple