Application scope of spiral plate heat exchangers
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Our company uses 304 stainless steel spiral plate heat exchangers to reduce toluene-containing exhaust gases; we employ calcium chloride brine for this purpose, but it leaks after a short period of time. What kind of heat exchanger would be better suitable for Haiyou?
For applications involving corrosive media, it is recommended to use heat exchangers made of materials with greater corrosion resistance, such as titanium or duplex stainless steel. Plate heat exchangers or shell-and-tube heat exchangers made of titanium can be considered; these materials offer better resistance to highly corrosive media such as calcium chloride, which helps to extend the service life of the heat exchangers and reduce the risk of leaks. At the same time, it is recommended to consult professional heat exchanger suppliers to select the appropriate heat exchanger model and materials based on the specific operating conditions. .
First, we need to find out the cause of the leak.
In calcium chloride brine used for stainless steel, the chloride ion concentration is definitely above the allowed level; how can there be no leakage? Check the chloride ions, and then the corrosion of the stainless steel will become clear
Calcium chloride brine is too corrosive to stainless steel; replace the cooling medium with one that is resistant to chloride corrosion!
Come and ask Haiyou earlier; it’s completely possible to avoid the use of such equipment. It’s not a big problem – choosing a more reliable design team can solve it
304 is most vulnerable to Cl ions