系统瓦斯组成发生变化后预防腐蚀应对措施

总结了进入系统管网瓦斯的组成发生变化时,加热炉配置有余热回收系统启动应对措施以避免腐蚀对加热炉带来的伤害技术,重点介绍了当瓦斯中二氧化硫的质量分数超过100 mg/m^3以下时,将加热炉排烟温度控制在155℃以上;超过100 mg/m^3以上时,将加热炉排烟温度控制在175℃以上,同时满足环保及防腐要求的经验,仅供参考。

Countermeasure of Reclaimed Water Reuse to Circulating Water in Chemical Fiber Plant

This paper summarizes the technology of starting up the waste heat recovery system in the heating furnace to avoid the damage caused by corrosion when the composition of the gas entering the pipe network changes,and focuses on controlling the exhaust gas temperature of the heating furnace above 155℃when the content of sulfur dioxide in the gas is more than 155℃.When the content of sulfur dioxide in the gas is less than 100 mg/m^3,the exhaust gas temperature of the reheating furnace is controlled above 155℃.The experience of controlling the exhaust gas temperature of the reheating furnace above 175℃and meeting the requirements of environmental protection and anticorrosion when it exceeds 100 mg/m^3 is for reference only.