Reboiler system for EVA purge gas refining tower

A reboiler system for an EVA purge gas refining tower comprises the EVA purge gas refining tower and a reboiler, an output pipeline at the bottom of the refining tower is connected with a material side inlet of the reboiler, a stop valve I is connected to the output pipeline, the system further comprises a bypass pipeline connected with the output pipeline in parallel, and a circulating pump II and a stop valve II are connected in the bypass pipeline. The system can reduce the corrosion of olefin separation equipment, reduce the operation cost of the equipment, reduce the consumption of alkali liquor, improve the unit treatment capacity and reduce the carbon emission. 一种EVA驰放气精制塔用再沸器系统，包括EVA驰放气精制塔和再沸器，精制塔的底部输出管线连接再沸器的物料侧入口，输出管线上连接截止阀Ⅰ，系统还包括与输出管线并联的旁路管线，旁路管线中连接循环泵Ⅱ和截止阀Ⅱ。本系统可减少烯烃分离设备的腐蚀，降低设备运行费用，减少碱液的消耗，同时提高单元处理量，降低碳排放量。