套管换热器在线循环酸洗工艺介绍

Introduction of on line circulating pickling technology for casing heat exchanger

套管换热器是大型化工企业采用的主要加热设备,该设备运行一段时间后会在内管壁产生一层致密的结疤,影响换热效果。如何彻底清理掉结疤,是提高套管换热器换热效果的关键。本文主要介绍拜耳法生产氧化铝套管换热器内管结疤清除技术中的在线循环酸洗工艺。

Tube heat exchanger is the main heating equipment currently used in large scale chemical enterprises, but the equipment operation after a period of time, scarring effects will produce a layer of dense inner tube wall heat transfer effect. So how to thoroughly clean out this scar, is the key to improve the effect of heat exchanger tube at. This paper mainly introduces the Bayer process of alumina production, the dissolution process of casing in the heat exchanger tube to clean up the scale circulation pickling technology in online.