乙烯工业 ›› 2026, Vol. 38 ›› Issue (3): 60-64.

• 裂解炉 • 上一篇    下一篇

30Cr45NiAl炉管的性能评价

戴卫华,戴敏丰   

  1. 南京扬子检修安装有限责任公司,江苏 南京 211500
  • 收稿日期:2025-06-16 修回日期:2025-12-30 出版日期:2026-09-25 发布日期:2026-09-28
  • 作者简介:戴卫华,男,2017年毕业于江苏科技大学焊接技术与工程专业,大学本科,主要研究方向为石化装置使用过程中材质劣化导致的缺陷的焊接返修,现从事石化装置生产和修理过程中的焊接管理工作,工程师。

Performance Evaluation of 30Cr45NiAl Furnace Tubes

Dai Weihua, Dai Minfeng   

  1. Nanjing Yangzi Petrochemical Maintenance & Installation Co., Ltd, Nanjing, Jiangsu, P.C.210028
  • Received:2025-06-16 Revised:2025-12-30 Online:2026-09-25 Published:2026-09-28

摘要:

通过等温渗碳、高温循环氧化、模拟结焦及焊接接头性能四项试验,验证了30Cr45NiAl炉管相较于普通镍铬合金炉管的性能优势。结果表明:1 000~1 100 ℃条件下,30Cr45NiAl炉管的抗渗碳能力比普通炉管高40%以上,抗氧化性和抗结焦性能也显著优于普通炉管;采用市售工业化焊材焊接,可获得力学性能优良的焊接接头。最后展望了含铝炉管的应用前景,并分析了目前制约其大规模推广的关键因素。

关键词: 裂解炉管  , 氧化铝  , 高温性能  , 运行时间  , 效率

Abstract:

Four tests, including isothermal carburizing, high-temperature cyclic oxidation, simulated coking, and welding joint performance testing, were conducted to demonstrate the advantages of 30Cr45NiAl furnace tubes over ordinary nickel chromium alloy furnace tubes. The results show that the anti carburizing ability of 30Cr45NiAl furnace tubes at 1 000~1 100 ℃ is more than 40% higher than that of ordinary furnace tubes. Its oxidation resistance and anti coking performance are also significantly ahead of ordinary furnace tubes. Welding with welding materials produced on a large scale in the market can also obtain joints with good mechanical properties. Finally, the prospects for the use of aluminum containing furnace tubes were discussed, and the factors that currently restricting their large-scale use were analyzed.

Key words: cracking furnace tube, alumina, high temperature performance, running time, efficiency