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[Hossein Ahmadi]

Dear All, I'm a new member in this forum. According to attached PDF file, in one petrochemical plant that I involve, all utilities supplied by one central plant. The pressure design for highest equipment (heat exchanger) is 0.5 barg for sea water side. I think to avoid vacuum more than 0.5 barg ( for mentioned equipment when central utilities pumps be stopped) one pipe stack same as shown in the attachment sketch can be considered instead of vacuum breakers.
1-Would you please send your point of view about performance of pipe stack when central utilities pumps be stopped.
2-What is the system behavior (pressure-time curve) near of highest heat exchanger when central utilities pumps be stopped.

As you know another solution is weir but I try to find another solution. (my e-mail is h.ahmadi@nargan.com)

Attached Files

•  Vacuum_Breaker.pdf   41.36KB   124 downloads