What to do if the tubes in the middle row of the reboiler are blocked by alkali? ?
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What to do if the tubes in the middle row of the reboiler are blocked by alkali? ?
Does no one know how to solve it? !
1. Stop the operation, then open the tube box and clean it with a weak acid; if it’s a single tube side, a steel rod can be used to clear it. 2. Stop the operation and rinse repeatedly with water until it is unobstructed
It was explained very clearly upstairs; don’t you understand yet?
The tubes in the middle row of the reboiler are clogged with alkali; high-pressure cleaning is a good option.
Hehe, if the blockage is severe, then parking is necessary; high-pressure water or high-pressure nitrogen (steam) can be used for this purpose. If those measures don’t work, chemical methods must be employed. Take methanol distillation as an example: side reactions occur during the synthesis process, resulting in heavy components such as liquid wax. Over time, these substances accumulate inside the tubes of the reboiler, causing blockages and preventing effective heat exchange.
Blow it directly with steam! Can it be heated with heat transfer oil? ?
Pickling? What else do you want to do?