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Reboiler: The tubes in the reboiler are blocked. What other methods are there besides using a high-pressure water gun to clear them? Does anyone know what caused the blockage of these tubes? Heat transfer is achieved using thermal oil at 250 degrees Celsius. https://bbs.hcbbs.com/forum.php?mod=image&aid=1404263&size=300x300&key=dfc759ebcc983c6a&nocache=yes&type=fixnone https://bbs.hcbbs.com/forum.php?mod=image&aid=1404260&size=300x300&key=883fe4efe6d69725&nocache=yes&type=fixnone https://bbs.hcbbs.com/forum.php?mod=image&aid=1404259&size=300x300&key=8a2d5ce2daca92b4&nocache=yes&type=fixnone https://bbs.hcbbs.com/forum.php?mod=image&aid=1404262&size=300x300&key=544e4482a2be447a&nocache=yes&type=fixnone https://bbs.hcbbs.com/forum.php?mod=image&aid=1404264&size=300x300&key=d56f932e7a17f64f&nocache=yes&type=fixnone https://bbs.hcbbs.com/forum.php?mod=image&aid=1404261&size=300x300&key=4781cc1e3d56fe56&nocache=yes&type=fixnone
As you can see, this is scaling; it’s purely a problem related to the quality of the oil.
Has anyone analyzed what this white substance is? A X-ray diffraction test could be conducted, and then measures should be taken at the source to reduce its concentration as much as possible. This can help to slow down the problem, but it’s unlikely to provide a complete solution
In which part is it used? Why is a fixed tube sheet used? Is heat transfer oil used to heat the deionized water? Are there no rows? The opinion is not necessarily correct; reboiling water at 250 degrees inevitably leads to this situation. It’s better to address the issue by improving the process from aspects such as water quality, waste discharge, and chemicals used
It’s a crystal now; shoot it with a high-pressure water gun
Yes, that’s right. But the white substance doesn’t seem to be limescale
It is used for the condenser of heterogeneous towers; since heat transfer oil is used for heating the towers and its temperature is very high, the water inside the tube bundles can be heated and used as steam
Well, yes, we need to check what substance the white material is