CAJ | 학술논문

从液滴受力分析入手，建立了喷淋塔的比表面积和传质速率方程，将吸收区划分为变速段与恒速段，推导了吸收区高度的计算模型，引用工业脱硫塔实际的工艺数据验证了模型的正确性，讨论了操作参数对吸收区高度的影响。结果表明，增加喷淋密度、提高吸收液 pH 值、减小液滴直径，均可降低吸收区高度；提高操作气速、增大烟气入口SO2浓度，吸收区高度增加；脱硫率随塔高而增加，但当脱硫率超过90%以后，增加塔高对脱硫率的影响不大。
종액적수력분석입수，건립료분림탑적비표면적화전질속솔방정，장흡수구화분위변속단여항속단，추도료흡수구고도적계산모형，인용공업탈류탑실제적공예수거험증료모형적정학성，토론료조작삼수대흡수구고도적영향。결과표명，증가분림밀도、제고흡수액 pH 치、감소액적직경，균가강저흡수구고도；제고조작기속、증대연기입구SO2농도，흡수구고도증가；탈류솔수탑고이증가，단당탈류솔초과90%이후，증가탑고대탈류솔적영향불대。
Specific surface area and mass transfer rate in spray tower were studied by considering the forces acting on a droplet. Absorption region was divided into accelerating segment and constant speed segment, and a segmentation calculation model for the height of absorption region was developed, which was verified by the data of four industrial desulfurization systems. The effects of operating parameters on the height of absorption region were investigated. The results show that height of absorption region decreases with the decrease of spray density and pH value of absorbent, and increases with the decrease of droplet diameter, superficial gas velocity and inlet SO2 concentration. The desulfurization efficiency increases with the height of absorption region. When the desulfurization efficiency reaches above 90%, the height of absorption region only has a slightly influence on the efficiency.