Page 90 - 国外钢铁技术信息内参（2022年8月）

ᇏݓࣁඋ࿐߶

（十）利用新型传热促进装置开发连续退火线高效

回热器

Ryo Kamura， Koji Iwata， Kunitoshi Oyama

JFE 钢铁株式会社

摘要：在钢铁厂，通常对废气进行余热回收交换预热燃烧空气，以提高连续退火
ᇏݓࣁඋ࿐߶
线(CAL)能源效率。本文将探讨通过促进换热器外表面的湍流来改善换热器换热

性能的重要性。研发了一种促进传热的新型高效传热装置，能够满足容许的压力 ᇏݓࣁඋ࿐߶

损失，并可降低约 4%的燃料气体消耗量。

关键词：换热器、辐射管、连续退火线、热系数

Development of High-Efficiency Recuperator by New

Heat Transfer Promoting Device at Continuous

ᇏݓࣁඋ࿐߶
Annealing Line

Abstract：In iron works，many heat recuperators that exchange between exhaust gas

and combustion air are utilized in order to advance energy saving at the continuous

ᇏݓࣁඋ࿐߶
annealing line (CAL). This paper will present an investigation of the importance of
improving heat transfer performance of the recuperator by promoting turbulence of

outer surface recuperator. A new heat transfer-promoting device was developed that

advances heat transfer and satisfies the allowable pressure loss and reduces the

quantity of fuel gas by about 4%.

原文参考 CMISI 数据库： AISTech 2021-钢铁技术会议论文集

第 1680 页至 1686 页

ᇏݓࣁඋ࿐߶

CSM 中国金属学会 CMISI 冶金工业信息标准研究院
87