主换热器是汉普逊型螺纹管换热器。
介绍了主换热器阻塞的经过及大加温后的运作情况，分析了事故的原因，提出了有效的解决方案。
Introducing clogging course of main heat exchanger and operation after deriming, analyzing accident cause and put forward effective solution.
在空分装置改造时，卧螺离心机在主换热器的每个板式单元的各个通道的进出口管线上增设了温度测量点。
When the air separation device is reformed, the temperature measuring point is added to the inlet and outlet pipeline of each plate unit of the main heat exchanger.
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