为保证间接空冷塔安全性，并尽可能降低造价，有必要对间冷塔结构优化进行研究。分析了喉部高度变化、塔筒壁厚变化对塔筒的整体稳定性和局部稳定性以及塔筒工程量的影响，总结了间接空冷塔结构优化的原理和方法，并结合工程实例进行间接空冷塔的结构优化设计。

In order to ensure the safety of indirect dry cooling tower and to reduce the project cost as far as possible, it is necessary to carry out structure optimization study for the indirect dry cooling tower. The paper analyzes the influence of variation in tower laryngeal height and tower shell thickness on the integral and local stabilities of the tower, and on the tower’s amount of works. The principle and method for structure optimization of the indirect dry cooling tower are introduced and the structure optimization design is conducted based on practical project.