The bottom pressure of the trial-run debenzene tower is unstable
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I’m in the rough machining section of my workshop; we’re currently conducting tests and running into many problems. I came here today to learn how to deal with them. At first, the oil circulation was normal, but after the oil passed through the heat exchanger (by gravity, without any external power; previously it flowed through a bypass), the pressure at the bottom of the tower started to rise. The problem was caused by air in the heat exchanger, so we installed temporary pipes to remove that air and resolve the issue. However, once the air was removed, the pressure continued to rise gradually, by 1 KPA every two hours… There really seems to be no solution. I initially suspect that there might still be air leaks in the heat exchanger. What are everyone’s thoughts? (What is circulating now is water; the tubular furnace is being heated up.) Oil-rich temperature is 40, with steam being directly vented. ）
When driving, the oil is at low temperature and has high viscosity; it is normal for there to be significant resistance as it passes through the spiral plate heat exchanger. Therefore, it will certainly be difficult for the oil to flow through the heat exchanger by gravity at first. It is possible to consider temporarily connecting an 80-meter lean fuel pump while driving to force circulation