Problems with connecting high-temperature aluminum alloy plate heat exchangers to pipe flanges
Thread Content
Dear all, there is a problem that is rather difficult to resolve at the moment: 1. An aluminum alloy plate heat exchanger with dimensions of 4000*4000*1000, with a maximum operating temperature of 340 degrees; it is connected via flanges. 2. For the “round sky and square earth” design: one end has dimensions of Φ2440*20 and is welded to the pipeline, while the other end has dimensions of 4000*4000; the material used is Q345R, and this end is connected to the flanges of the plate heat exchanger； 3. Pipe Φ2440*20, material: Q345R. The current idea is for the connection to be in this order: 3-2-1-2-3. But how can aluminum alloy plate heat exchangers be connected to flanges with a round-top and square-bottom design? (The impact of 340 degrees on the flange connection is a key consideration.) Can aluminum alloy heat exchangers withstand a temperature of 340 degrees? Dear everyone, do you have any good ideas? Please give me some advice. Thank you!
Medium: Air; operating pressure: up to 2.5 Bar gauge pressure, but negative pressure conditions are also possible. It belongs to experimental equipment, with complex start-up, shutdown, and operating conditions.