多级雾化超重力旋转床中气液间的传热

多级雾化超重力旋转床是一种新型的传质设备，具有阻力损失小、传质效率高、结构紧凑、质量轻、投资省的优点，已经应用于锅炉烟气脱硫中.在进行脱硫反应时，低温的吸收液与高温的烟气相接触，烟气的温度下降、湿度上升;而吸收液的温度上升，水分蒸发.根据喷雾理论和Lewis方程，可对整个过程进行模拟，喷雾区的气液两相出口参数可通过计算的方法进行模拟.计算结果和实验测定值吻合良好.

Heat transfer between liquid and gas in multistage-spraying rotating packed bed

Multistage-spraying rotating packed bed is a novel equipment with low pressure drop, high mass transfer coefficient, small volume, light weight and lower investment, in which rapid and highly efficient reaction can be carried out.It has been used in flue gas desulfurization.When the multistage-spraying rotating packed bed is used in boiler flue gas desulfurization, the cool absorber liquid contacts the hot gas in the spraying area.Gas temperature drops and its humidity increases, while the temperature of absorber liquid increases, during the heat transfer between the hot gas and the cool liquid. The whole process was modeled on the basis of the spray theory and the Lewis Equation. The parameters of the liquid and gas in the spraying area and the outlet could be calculated. The calculated result was verified by the experimental data.