船舶烟气海水脱硫吸收塔工艺研究与设计

针对船舶烟气中SO2的处理工艺,根据烟气流量、烟气中SO2含量,从塔径、填料层类型和高度、液体喷嘴数量、除雾装置4个方面进行了相关参数设计和计算,最终给出了在现有烟气流量和含硫量条件下的船舶用海水脱硫吸收塔的具体参数。同时考虑烟气中含硫量的变化,并保证能够完全脱除烟气中的SO2,设置四排液体喷嘴,通过有限元分析软件FLUENT,根据出口处含硫量、塔内压力分布和流速分布优化了不同含硫量条件下喷嘴的启停方式。

Technical Study and Design of Absorption Tower for Ship Flue Gas Desulphurization

Based on the treatment technology of SO2 in ship flue gas, according to the flue gas flow rate and the concentration of SO2, this paper designed and calculated relevant parameters from four aspects, including the tower diameter, type and height of packing layer, number of liquid nozzles, and demister. Then this paper proposed specific parameters of seawater desulfurization absorption tower for ships under the condition of existing flue gas flow rate and sulfur content. At the same time, considering the variation of sulfur content in the flue gas, and ensuring that SO2 in the flue gas can be completely removed, the author set four rows of liquid nozzles. Through the finite element analysis software FLUENT, the start and stop modes of the nozzles under different sulfur content conditions were optimized according to the sulfur content at the outlet, pressure distribution and flow velocity distribution in the tower.