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Difference between pipe arrangement at the mid-span and centered pipe arrangement in heat exchangers

2017-11-15View Original

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I’m confused by the piping arrangement at the midpoint of the heat exchanger and the piping alignment. Could some kind person help solve this? It would be great if a legend could be included. I also searched for related questions on the forum, but still didn’t understand it. Also, does the number of central tubes refer to the row of tubes near the diameter? For example, in this image found online, is the number of tubes in the center 5? Thank you all.
Reply #22017-11-15
Centered piping means there is a pipe at the center of the piping arrangement, while off-center piping means there is no pipe at the center. For example, your diagram should show the pipes arranged symmetrically; the number of pipes in the central row is 5. Simply put, for the row of pipes closest to the center, if the number is odd, they are aligned at the midpoint, while if the number is even, they are arranged symmetrically – provided that the pipes are arranged symmetrically.
Reply #32017-11-15
Thank you for your answer. Look at the image I posted; it says in the lower left corner that the number of pipes in the center row is 6. By \"centered arrangement,\" do I understand it to mean that pipes can be placed on any line that passes through the center line? Is this understanding incorrect? You say there’s a pipe at the center of the ducting? In my diagram, does it mean the dots have tubes?
Reply #42017-11-15
Your answer is really concise and clear, thank you.
Reply #52017-11-16
Based on the piping arrangement, there should be partition plates for dividing the sections; alignment should be considered from a single side. To be precise, it should be aligned such that there are 5 pipes on the inner side, rather than 6 pipes when aligned in the middle
Reply #62017-11-16
Rotate the image by 90 degrees and you’ll understand
Reply #72017-11-17
Someone upstairs replied that in my diagram the elements are arranged centeredly because there is a pipe in the center. Do you mean the center? There are no pipes at the center either. It means that if there are pipes on a straight line passing through the center, it is considered a centered arrangement, right?

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