A mathematical model has been obtained for heat andmass transfer in the vertical sieve - plate tower by relying on the maturepacked tower model and looking for the correlation of the plate tower andthe packed tower 依托成熟的填料塔模型，通过寻找板式塔与填料塔之间的关联，求得垂直筛板塔的传热、传质数学模型。
