It’s a newly manufactured heat exchanger; please give me some advice, experts
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The crude methanol preheater has the tube side filled with the steam condensate from the pressure tower reboiler, while the shell side contains crude methanol; after disassembly, only 5 tubes showed no leakage under static water pressure. Pull out the core and take a photo. For everyone’s analysis and reference.
This two-pass heat exchanger is so compact and cute! :lol
Which material flows through the shell side and which one flows through the tube side? Are there any rules to follow?
The heating medium flows through the tube side, while the substance to be heated flows through the shell side
Piping pitting – check whether there is an issue with the material of these pipes.
What other corrosive substances are present in methanol? ? Severe pitting
Corrosion by organic acids in crude methanol. Is it normal to add dilute alkaline solution?
It is obvious that the tube has corroded and perforated from the outside in; the shell side contains crude methanol, which usually contains acidic gases that can corrode the tubes