Heat exchanger design
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How to determine the gap between the tube sheet holes and the tubes, as well as the clear distance between the baffle plates and the shell diameter? ? ? ? ? ? ? ? ? Every time I ask, someone replies that it’s listed in GB151, but after checking several times I still can’t find it. Where are the experts from Haichuan? ? ? ? ? ? ? ? ? ? ?
It’s really listed in GB151; you’d better go through the standard carefully.
GB/T151-2014 specifies the requirements for the diameter of pipe holes and their tolerances, as well as the outer diameter of baffle plates and their tolerances... You had better study these standards carefully.*
P23 grade I tube bundles consist of heat exchange tubes in combination with tube sheets. P31: Table 6-20 shows the use of baffle plates. Those on the upper floors are all of varying quality; it’s still necessary to examine the 151 models carefully
Try looking again; it’s definitely there above
Haha, maybe the original poster really read it several times without paying attention to the content.
In your current state, it’s better not to rush into any design work; focus first on mastering GB151 properly； All clearance requirements for heat exchangers are specified in the standards