湿法烟气脱硫系统对发电机组运行的影响研究

Research on the Influence of Wet-process Flue Gas Desulfurization (FGD) System on the Operation of a Power Plant

在连州电厂石灰石 /石膏湿法烟气脱硫系统上进行了FGD系统对发电机组运行影响的研究 ,主要分析了FGD系统的运行对锅炉炉膛负压、尾部烟道腐蚀、工业水系统、汽机运行的影响以及脱硫石膏与电厂灰渣水混排对现有排放系统的影响。研究结果对湿法烟气脱硫系统的设计、运行有很好的参考价值。

The influence of a flue gas desulfurization system on the operation of a power plant was investigated on a limestone/gypsum wet-process flue gas desulfurization (FGD) system installed at Lianzhou Power Plant in Guangdong Province. Mainly analyzed is the influence of the FGD system on the following items: boiler furnace negative pressure, corrosion of flue-pass at the boiler tail section, industrial water system, steam turbine operation. The impact of mixed drainage of desulfurization gypsum and plant ash-slag water on the existing drainage system has also been investigated. The results of the investigation may serve as reference data for the design and operation of the wet-process FGD system.