硫酸装置间接升温系统空气预热器损坏原因分析与改进

Sulfuric Acid Plant Indirect Heating System Air Preheater Damage Cause Analysis and Improvement

间接升温系统能较好地保护催化剂活性、强度,在制酸装置中得到广泛运用,系统中的关键设备空气预热器受使用工况、材料耐温性能、工艺控制操作等因素影响,常发生高温烟气侧管板、换热管、耐火材料衬里、套管损坏失效问题。因此,针对空气预热器使用中出现的问题,进行原因分析,并提出解决措施方案,保障设备正常运行。

Indirect heating system can better protect the catalyst activity,strength,in the acid plant is widely used,the key equipment in the system of air preheater using poor working conditions,by the material temperature resistance,process control operation and other factors,often occur in the high temperature flue gas side of the tube plate,heat exchanger tube,refractory lining,casing damage failure problems.This paper focuses on the use of air preheater problems,cause analysis,and put forward measures to solve the problem to ensure the normal operation of the equipment.