火力发电厂湿法脱硫FGD防腐工艺的优化分析

摘要

In order to improve the reliability of the desulfurization equipment anticorrosion, the influence of burn-ing high sutfur coal on the desulfurization efficiency and anticorrosive reliability of wet flue gas desulfurization ( FGD) is analyzed, the corrosion environment and corrosion type of FGD are illustrated, the perforrnance compar-ison of corrosion resistant alloy, rubber lining, glass flake, GDAHPCT ( APC) hybrid polymer coating materials is conducted. The anticorrosion technology and optimization suggestions of wet flue gas desulfurization of thermal pow-er plant are presented, which provide references for improving the reliability of anticorrosion.%为了提高脱硫设备防腐的可靠性，针对燃用高硫煤对湿法脱硫FGD的脱硫效率与防腐可靠性的影响进行了分析，阐明了FGD的腐蚀环境与腐蚀类型，比较了耐腐蚀合金、橡胶衬里、玻璃鳞片、 GDAH-PCT ( APC)杂化聚合物等防腐材料的性能，提出了火力发电厂湿法脱硫的防腐工艺优化建议，为提高防腐的可靠性提供了参考。