脱硫系统烟气换热器改造经济性分析  

Economic Analysis on Retrofit to a Gas-Gas Heater in Flue Gas Desulfurization System

作　　者：郭洪斌[1] 侯树林 于飞[2] 

机构地区：[1]淮沪煤电有限公司田集发电厂,淮南232098 [2]上海发电设备成套设计研究院,上海200240

出　　处：《发电设备》2014年第3期219-220,225,共3页Power Equipment

摘　　要：分析了脱硫系统烟气换热器(GGH)结垢造成的危害及其结垢原因,提出了将传热元件改造为大通道直波形板。实践结果表明:改造后降低了GGH运行阻力和增压风机的运行电流,提高了脱硫系统的安全可靠性,且节能效果显著。An analysis was carried out to both the harms caused by gas-gas heater （GGH） scaling in flue gas desulfurization system and the scaling reasons, to which retrofit measures were put forward by changing the original heat-transfer unit into large channel straight corrugated plate type. Application results indicate that the operating resistance of GGH and the operating current of booster fan are decreased; the safety and reliability of the flue gas desulfurization system are improved, and the energy saving effect is significant.

关 键 词：锅炉 烟气脱硫系统 烟气换热器 堵塞 传热元件 

分 类 号：X701.3[环境科学与工程—环境工程]