The distillation tower is equipped with a vertical siphon reboiler at its bottom
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The distillation column is equipped with a vertical siphon reboiler at the bottom; however, if I keep the liquid level at the bottom above 50%, it will submerge the upper head of the reboiler, which in turn affects the gas phase returning to the column. If the level of the reboiler is maintained, the liquid level at the bottom of the tower will be very low, resulting in **reduced operational flexibility**. I don’t know why the design institute designed it this way Dear colleagues, please help. This distillation system has not yet been put into use.
Is there a problem with the installation height of the reboiler? Generally, there are requirements regarding the installation height of the tube sheet
This issue has already been taken into consideration, but the design institute still hasn’t given any response. Everyone, please help!
I’m checking – does the material, after being heated at the bottom of the tower, return to the tower in a gas-liquid mixture?
If I maintain a liquid level of 30% at the bottom of the tower, it will result in gas returning to the tower, and so on!
The installation height of the vertical siphonic reboiler should be such that pressure balance can meet the requirements for circulation flow rate； The main variable factors are the diameter of the inlet and outlet pipelines and the length of the reboiler. The upper tube sheet of the reboiler is kept at the same height as the liquid level at the bottom of the tower, in order to reduce the height of the tower. It is generally not recommended that the height difference between the liquid level at the bottom of the tower and the upper tube sheet exceed 0.6 m. To meet the requirements of the reboiler cycle, it is possible to increase the diameter of the inlet and outlet pipelines or adjust the length of the reboiler tubes; an increase in tube length enhances the driving force for circulation, but it also increases the height of the tower.