1000MW机组脱硫效率低原因分析及解决方案.doc

1000MW 机组脱硫效率低原因分析及解决方案刘顺望(国电泰州发电有限公司,江苏省泰州市高港区永安洲镇 225327 ) 摘要: 湿法脱硫因其自身优点应用十分广泛, 但自身工艺上也存在无法避免的问题而影响效率。针对 1000M W 机组脱硫效率降低的问题,采用排除方法,逐项分析论证,通过吸收塔浆液循环泵效率实验,发现了吸收塔浆液循环泵脱硫效率存在不同程度的下降,结合其运行参数,确认脱硫效率下降的原因为吸收塔喷淋层堵塞,并进一步分析了吸收塔喷淋层堵塞原因,从系统设计、设备检修、运行调整等方面入手,实施系统扩容改造,采取针对性的设备整治和生产管理等措施,保证了脱硫效率的长期高效稳定运行。关键词: 脱硫效率;吸收塔浆液循环泵;实验;喷淋层;磨损;堵塞 Analysis of the causes of the low desulfurization efficiency of 1000MW unit and solving scheme Liu Shunwang (Guodian Taizhou Power Generation Co. Ltd., Jiangsu Taizhou gao gang Yongan town 225327) Abstract: wet FGD because of its advantages is widely used, but its process is also unable to avoid the problems which influence the efficiency of. To reduce the desulfurization efficiency of 1000MW unit, the troubleshooting, analysis item by item, through the absorber slurry circulating pump efficiency experiment, found in the absorption tower slurry circulating pump desulfurization efficiency has decreased in varying degrees, combined with the operation parameters, to confirm the reasons of desulfurization efficiency drops plugging absorber spray layer, and further analysis. Absorber spray layer blockage reason, from the aspects of system design, equipment maintenance, operation adjustment, the implementation of reconstruction system, take the equipment improvement and production management and other measures to ensure the long-term stable operation, high desulf