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Corrosion of plate heat exchanger
Source: Time: 2020-04-01 15:16:56 Hit:
Why is the plate heat exchanger corroded? This is mainly due to the formation of dirt at the bottom of the plate seal, which is also the place where there are many problems with the equipment. In severe cases, the plate heat exchanger will directly break.
After the plates of the heat exchange equipment are assembled, a multi-gap structure is formed, such as the contacts between the plates and the bottom of the sealing groove. When the dirt on the surface of the plate is serious, the corrosive elements (such as chlorine, sulfur, etc.) may be attached to the dirt in large quantities, and the gap is more likely to cause the concentration of chloride ions. The local concentration in this case exceeds the stainless steel's ability to resist corrosion.
The harmful elements in the bottom of the sealed tank are often precipitated by the chlorine in the adhesive due to the temperature rise. Such as neoprene adhesives and compressed asbestos (containing calcium chloride), often under concentrated water and steam conditions, concentrated chloride ions and hydrogen ions are precipitated to form hydrogen chloride, causing severe corrosion cracking at the bottom of the tank .
Yuanzhuo Equipment is a professional heat exchanger manufacturer in Jiangsu, China. We hope that the relevant information about plate heat exchangers can help you. We also have YOJO gasket plate heat exchangers, plate heat exchanger spare parts, etc. For more product information, please visit our product page. If you have any questions, please feel free to call us and look forward to your call.
Tags: heat exchange equipment, Jiangsu heat exchanger, YOJO gasket plate heat exchanger
