Tag Archives for downcomer

Seal Pans Downcomer

The downcomer from the bottom tray is submerged in a seal pan (see Fig. 8.3), to preserve its downcomer seal. I always set the horizontal dimension between the over-flow lip of the seal pan, (dimension y) the downcomer at four … Continue reading

30. April 2011 by Jack
Categories: Tower Pressure | Tags: , | Leave a comment

Total Height of Liquid in Downcomer

To summarize, the total height of clear liquid in the downcomer is the sum of four factors: • Liquid escape velocity from the downcomer onto the tray below. • Weir height. • Crest height of liquid overflowing the outlet weir. … Continue reading

24. January 2011 by Jack
Categories: Tray | Tags: , | Leave a comment

Trays Downcomer Backup

Liquid flows across a tray deck toward the outlet weir. The liquid overflows the weir, and drains through the downcomer, to the tray below. Vapor bubbles up through the sieve holes, or valve caps, on the tray deck, where the … Continue reading

24. January 2011 by Jack
Categories: Tray | Tags: , | Leave a comment

Vertical Three Phase Separator

Figure 5-6 shows a typical configuration for a vertical three-phase separator. Flow enters the vessel through the side as in the horizontal separator, the inlet diverter separates the bulk of the gas. A downcomer is required to transmit the liquid … Continue reading

02. September 2009 by Jack
Categories: Oil and Water Separation | Tags: , , , , , | Leave a comment