CO_2汽提塔的计算与分析

Calculation and Analysis of CO_2 Stripper

利用液体穿孔的流量公式,推导出CO_2汽提塔液体分布器上的液体分布孔流速与液位高度的关联公式,可计算出汽提塔单管负荷。根据湿壁塔内液膜厚度公式,计算出尿素-甲铵液在不同类型CO_2汽提塔中的停留时间。通过热力学计算,归纳总结了不同生产负荷下CO_2汽提塔的热负荷和传热系数。计算结果表明,理论计算值与实际生产数据基本吻合。

Use of flux formula for orifice flow, correlation formula has been deduced of flow velocity in liquid distribution hole at liquid distributor of CO2 stripper and height of liquid level, the load of individual pipe of the stripper can be calculated. By formula of liquid film thickness in wetted wall column, the residence time of urea-ammonium carbamate solution in different CO2 strippers can be calculated. By thermodynamic calculation, heat load and heat transfer coefficient of CO2 stripper at different production load are generalized and summarized. Calculation results show that theoretical calculated value basically agrees with actual production data.