吸附塔制造与安装

某二甲苯装置中4台吸附塔的塔内构件采用了美国UOP公司的专利技术。该4台吸附塔具有直径和厚壁均较大的显著特性，制造中对塔体圆度、塔体与中心管的同轴度要求非常高。对此4台吸附塔的制造、安装过程中的难点以及采取的控制措施进行了详细介绍，可为今后同类设备的制造提供借鉴。

Manufacture and Installation of Adsorption Tower

Four adsorption towers of P-xylene unit which are large diameter and thick-walled,their internals are adopted the patent technology from American UOP Corp.,as so the ellipticity of the tower and the concentricity which with the central tube are very strict in like products.The key measures and the control of difficulty points in fabrication and installation were introduced in details,so some experiences for the same type of products which has precision manufacturing in future will be useful.