某火电厂FGD工艺及其运行现状分析  

Analysis of FGD Process and Running Status of one Thermal Power Plant

作　　者：汤红妍[1] 刘高雷 唐宇[1] 翟亚飞 朱全亮 

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471000

出　　处：《工业安全与环保》2015年第2期69-71,共3页Industrial Safety and Environmental Protection

基　　金：河南科技大学教育教学改革研究计划项目(2013年度);河南科技大学大学生研究训练计划(SRTP)项目(2014097)

摘　　要：某火力发电厂FGD系统采用石灰石/石膏湿法脱硫工艺,FGD系统中设置有旁路挡板,在正常运行时,其脱硫效率可以达到90%以上,二氧化硫排放低于400 mg/m3,达到国家排放要求。FGD系统运行中异常主要表现在原烟气SO2浓度超标,增压风机、GGH、吸收塔除雾器等设备易发生故障,导致脱硫效率下降,不能够达标排放,在设备运行过程中应注意防范。The limestone / gypsum wet desulphurization process is applied in the FGD system of one thermal power plant and the bypass damper is set in the FGD system. In normal operation,the desulfurization efficiency can reach above 90% and the sulfur dioxide emission is below 400 mg / m3,meeting the national emission requirements. The anomalies in the FGD system operation mainly include： the concentration of SO2 in the original flue gas is exceeded and the booster fan,GGH,the demister in the absorbing tower are easily malfunctioned,which makes desulfurization efficiency decreased and can＇t reach the national standard. These problems should be paid attention to in operation.

关 键 词：火电厂 FGD 工艺流程 异常分析 

分 类 号：X773[环境科学与工程—环境工程]