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مهندسی صنایع::
گاز تمیز کننده (گاز خنثی)
- Pressurization purging (blowdown): Introduce a purge gas to increase system pressure to 15 psig, followed by depressurization to the atmosphere.
If a system filled with a combustible liquid needs to be emptied and then purged, a purge gas may be applied to the vapor space at a pressure consistent with equipment design limitations.
- Displacement purging (slug) or Inerting: Introduce an inert purge gas until a buffer or separation zone is established, followed by the introduction of a chase gas of a different type.
- Dilution purging (sweep-through): Introducing a purge gas at one opening and letting the system contents escape through another opening at the opposite end of the system.
- Siphon purging: Filling the system with a liquid and introducing a purge gas into the vapor space to replace the liquid as it is drained from the system.
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