Hydrogenation process interlock
Thread Content
A friend told me that there’s an interlock that shuts down the hydrogen circulation pump; the feed pump doesn’t stop operating in such cases. It’s been 3 years since this plant was put into operation, yet when the hydrogen circulation pump stops working, feeding continues for another 40 minutes. What an amazing factory, what amazing managers, what amazing workers. Are you convinced?
\u8fd9\u4e2a\u786e\u5b9e\u4e0d\u5e94\u8be5\uff0c\u6211\u4e5f\u6ca1\u542c\u8bf4\u8fc7\u3002\u4fdd\u7559\u8fdb\u6599\u5e76\u6ca1\u6709\u592a\u5927\u76ca\u5904\u3002\u3002\u3002\u4ed6\u6709\u6ca1\u6709\u8ddf\u4f60\u8bf4\u8fc7\u8fd9\u4e48\u8bbe\u8ba1\u7684\u539f\u7406\u5728\u54ea\uff1f
Bro, it’s normal not to have interlocks that shut down the pumps – this is to prevent the reactor from overheating. Our plant doesn’t have such interlocks that would shut down the hydrogen circulation pumps.
Will stopping the circulating hydrogen cause the temperature to rise or fall? The hydrogen circulation pump is connected in series with the heater; when it stops working…
If the circulation hydrogen compressor is stopped in a hydrogenation unit, but the feed pump continues to operate and the main burners of the heater remain lit, the temperature of the reactor bed will definitely rise, and there is even a risk of overheating! Therefore, when the circulating hydrogen compressor stops, the feed pump must also stop, and the main burner of the heater must be turned off! ! !