The heat exchanger reboil cannot be established
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Recently, the reboiler in my unit isn’t able to circulate properly; heat siphonage cannot be established, and the temperature at the bottom of the tower doesn’t rise. If anyone with experience in this area is out there, please share your insights. Thank you
Clarify the specific details to facilitate problem-solving.
Did it stop working right after the device was put into operation, or did it stop working after being used for some time? Has your level sensor failed? If the liquid level is low, the temperature won’t rise either
Start from scratch? Is it blocked?
First of all, I need to know what type of reboiler this is – one with forced circulation or thermal siphon action. I also need to know whether the material contains solid impurities or substances with very high boiling points. It’s important to clarify whether this situation has always been present or arose after maintenance work; only then can I help determine the issue
Insufficient heat source can prevent the bottom temperature from rising, and an excessively high liquid level in the reboiler also hinders an increase in the bottom temperature of the tower. Determine whether the liquid level in the reboiler is normal, and whether the level gauge has malfunctioned Another issue is the properties of the feed oil; as the feed oil becomes heavier and contains more heavy components, as well as when it contains a high amount of water, this also has a negative effect on the temperature rise at the bottom of the tower.
Only by clarifying the specific details can we analyze what the problem is.
For the original start, consider the design. After maintenance, blockage is a concern
Explaining in more detail will help everyone analyze the reasons
If the condensate cannot be removed, a thermal siphon cannot be established
I personally suggest looking into two aspects: first, blockages and poor flow； II. Insufficient heat source.