What is used to clean the hard deposits from stainless steel plate heat exchangers?
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After using the heat exchanger for some time, it was found that its heat exchange efficiency was poor; when the existing scale was removed, it could not be washed away with water. May I ask what is used to clean the hard deposits on stainless steel plate heat exchangers? Can hydrochloric acid be used?
Use HF—HCl-based and HF—HNO3-based pickling solutions
Reply 1# sdhklh: Use hydrochloric acid directly. . . ! ! ! ! ! ! ! ! Crazy
Stainless steel should be cleaned with nitric acid and a corrosion inhibitor
HF—HNO3 acid cleaning solution, with corrosion inhibitor added
How about oxalic acid? It depends on what your account is composed of.
A mixed acid of hydrochloric acid and nitric acid can cause corrosion to the stainless steel substrate, so caution is required
You can directly use acid cleaning paste for cleaning; it’s very convenient
Low concentration of HCL; the concentration is determined based on the desired effect
Hydrochloric acid cannot be used, as the chloride ions in it are highly corrosive to stainless steel