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Does the U-shaped tube heat exchanger have 6 tube passes?

2015-12-31View Original

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Does the U-tube heat exchanger have 6 tube passes? The standard only has a maximum of 4 tubes, so why aren’t there more? If so, how are the tube processes allocated? Can someone please tell me?
Reply #22015-12-31
how? Is there any unit that needs such a heat exchanger?
Reply #32015-12-31
The manufacturer asked whether U-tube heat exchangers can be used, because they were previously given a 6-tube floating head heat exchanger, and the U-tube heat exchanger standard does not include 6-tube heat exchangers. So I would like to ask if there are 6-tube heat exchangers. Is there any restriction on U-tube heat exchangers that do not include 6-tube passes in the standard?
Reply #42015-12-31
Six tubes are fine. But I haven't seen it. But I just tried arranging it and it still works.
Reply #52015-12-31
Could it be that the fluid resistance and pressure drop are too large?
Reply #62016-01-01
Well, the standard does not mention 6 tubes. Is this based on some considerations?
Reply #72016-01-01
I am not a craftsman, so I have never considered the issue of pressure drop!
Reply #82016-01-04
Each has its pros and cons. It is true that there will be a problem of high resistance, but the longer the residence time, the better the heat exchange effect will be. It depends on the choice. We have used a structure like this: victory:

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