对湿法烟气脱硫系统设置GGH的探讨

A Discussion on GGH Provided in System of Gas Desulfurization by Wet Process

在湿法烟气脱硫系统中,是否设置烟气再热系统(简称GGH)对脱硫工程投资和经济运行有较大影响,对SO2及氮氧化物(NOx)落地浓度也有重要影响,结合某电厂2×600MW燃煤机组脱硫工程,对是否设置GGH的技术经济性进行了比较。

In the system of gas desulfurization by wet process, whether GGH system will be provided, it has a larger impact on capital cost and economical operation of desulfurization project and an important effect on ground concentration of SO2 and nitrogen oxides （NO2）. Combining the project of desulfurization for 2 units of 600MW coal firing sets in a Power Plant, the comparisons are made between technical and economical efficiencies of whether GGH system will be provided.