Abstract: In recent years, the method of modular design for furnaces has been widely adopted. With the rapid development of our country's proprietary aromatics technology, the new large-scale xylene tower reboiler for aromatics planthas also been developed and applied. The new furnace type features a modular design that allows for the combination of multiple radiation cells, providing a technical foundation for series design. By continuously optimizing the modular design concept and structure during the design process, the specifications of the modules can be reduced. This not only facilitates mass production by manufacturers, but also improves the efficiency and quality of on-site installation. This paper explores the series standardization and modular design of the reboiler radiation section in xylene tower so as to provide reference for the designers to design similar devices.

Key words: furnace, radiation section, modularization, radiation cell