斜孔塔板的工业应用及制造安装技术

The industrial application of tower plates with inclined holes and the manufacturing and installntion techniques of the plates

本文介绍了斜孔塔板在燕山45万t／a乙烯扩建工程的精馏装置改建中的应用情况，并阐述了斜孔塔板制造与安装的技术要点。实践证明，在一定工况条件下采用斜孔塔板对原塔具进行改造，不仅工程量小，造价低，而且改造后板效率和生产能力明显提高，具有其它板式塔与填料塔所不可取代的优点。

This paper introduces the abplications of tower plates with inclined holes in the fractional distillation proect of a refractionating equipment in Yanshan 450,000 t/a ethylene extension project, and expounds the technical essentials for manufacturing and installing this kind of plates. It is proved by practices that, to reconstruct towers using plates with inclined holes under a certain working condition is characterized by the advantages of small amount of engineerings and low cost. Also after reconstruction, the plate efficiency and production capacity will be obviously increased which is superior to other kinds of plate-type towers and feeding towers.