Tag Archives for trays

High Capacity/High Efficiency Trays

High capacity/high efficiency trays have valves or sieve holes or both. They typically achieve higher efficiencies and capacities by taking advantage of the active area under the downcomer. At this time, each of the major vendors has its own version … Continue reading

17. September 2009 by Jack
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Bubble Cap Trays

In bubble cap trays, vapor flowing up through the tower contacts the liquid by passing through bubble caps (Figure 6-7a). Each bubble cap assembly consists of a riser and a cap. The vapor rising through the column passes up through … Continue reading

17. September 2009 by Jack
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Valve Trays

Valve trays are essentially modified sieve trays. Like sieve trays, holes are punched in the tray floor. However, these holes are much larger than those in sieve trays. Each of these holes is fitted with a device called a “valve.” … Continue reading

17. September 2009 by Jack
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Trays

For most trays, liquid flows across an “active area” of the tray and then into a “downcomer” to the next tray below, etc. Inlet and/or outlet weirs control the liquid distribution across the tray. Vapor flows up the tower and … Continue reading

17. September 2009 by Jack
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Sieve Trays

Sieve trays are the least expensive tray option. In sieve trays, vapor flowing up through the tower contacts the liquid by passing through small perforations in the tray floor (Figure 6-7b). Sieve trays rely on vapor velocity to exclude liquid … Continue reading

17. September 2009 by Jack
Categories: Trays and Packing | Tags: , | Leave a comment