Who has used a spiral baffle heat exchanger? What should be noted during operation, maintenance, and repair?
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The LORU and OCU units have adopted Ruums’ process packages. Ruums recommends the use of spiral baffle heat exchangers for some of the heat exchangers; since this type of heat exchanger has not been used before and there is a lack of experience in this regard, we would appreciate it if experts who have used such heat exchangers could share their experience and key points to keep in mind.
Are the spiral baffle heat exchangers in your OCU units imported or domestically produced? It is understood that many installations in China have also used this type of heat exchanger, which are generally of domestic origin; however, the manufacturing quality and performance in use are not well known. In China, the only OCU device available seems to be from Saiko. How is it performing currently? I am currently in charge of the equipment related to OCU devices, and it is currently in the design phase. I would like to learn more about this topic; could you please provide some guidance? In OCU unit spiral baffle heat exchangers, hydrocarbons generally flow in the shell side while water flows in the tube side. Is it necessary to use spiral baffles? (The properties of the process medium are not yet well understood in relation to the process.) I understand that water is generally used in the shell side; this design is adopted in order to increase flow velocity and reduce scaling and corrosion.
Our company uses type III spiral plate heat exchangers. The steam side is completely sealed, while the process side is sealed at the bottom and at the top by end caps. During operation, the spiral plates sank, which led to leaks on the process side and created short circuits; this resulted in low temperatures as well as blockages in the process fluid. During operation, avoid overpressure to prevent the spiral plate from sinking and causing leakage