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The pressure difference between the bottom and top of the distillation tower is 0.2 MPa, but the tower is not flooded; the level gauge confirms that everything is normal. May I ask everyone, what is the reason for this?
What is the temperature distribution inside the tower? ?
Reactor bottom 115, tower 55, tower top 35
In a normal tower, the temperature is in the seventies degrees, and at the top of the tower it’s also over fifty degrees
Since the level gauge shows no abnormalities, are the liquid levels in the tower bottom and in the reflux tank at the top of the tower also normal, with no significant fluctuations? ? Such as a sharp drop in the liquid level of the tower bottom and the reflux tank?
What you’re saying now is that the pressure at the top of the tower is higher than the pressure at the bottom of the tower. So, how does this pressure at the top of the tower compare to the normal pressure there? It’s impossible – the pressure must be increasing, yet the temperatures at the top and middle of the tower have actually decreased compared to normal conditions. Please describe the problem in detail – specify exactly how the temperatures, pressures, and liquid levels at the top and bottom of the tower differ from normal values. By listing this information clearly, I believe you will be able to identify the issue yourself
The issue now is that the material transfer from the previous tower is slow; as a result, the pressure in that previous tower is roughly equal to the pressure at the bottom of this tower, which prevents the material from flowing through. The backflow is still quite normal. I still don’t understand why there is such a large difference in pressure between the bottom and top of the tower. I’d like to ask for advice
It’s the pressure at the bottom of the tower that is high, 0.2 MPa higher than the pressure at the top of the tower
Isn’t it normal for the pressure at the bottom of the tower to be higher than that at the top? Is it possible that under normal conditions the pressure at the bottom of the tower is still lower than the pressure at the top of the tower? The way you describe the problem makes it impossible to figure out a solution; I hope someone else can help you. I’m completely confused by what you’ve said
Under normal conditions, the pressure at the bottom and top of the tower is similar; however, in the event of tower flooding, the pressure at the bottom of the tower becomes much higher than that at the top. The liquid level in the tower bottom gauge is now being displayed normally; it has been confirmed that both the gauge and the pressure gauge are functioning properly. Under normal conditions, both the bottom and top of the tower are at around 0.6 MPa; currently, the bottom of the tower is at 0.8 MPa
It still doesn’t make clear what it means.