| 摘要 |
The present invention provides an apparatus for use in the contact between a vapor and a liquid. In one embodiment, a column is provided having a generally vertical shell. A plurality of vertically spaced, horizontal fluid contacting trays for contacting the vapor and the liquid within the column may also be provided. Each horizontal contacting tray may include a liquid receiving area, an active perforated area and a liquid discharge area. An imperforate inlet area may be formed from a perimeter section of the liquid receiving area, and secured to the inner surface of the column. A downcomer may be positioned above said inlet area and inward from the inner wall surface of the column whereby the downcomer receives liquid from the liquid discharge area of an upper tray and directs flow to the inlet area. A froth activator may also be provided for contacting the liquid from the downcomer. The froth activator may include; a substantially vertical deflector positioned at the inlet area such that liquid from the downcomer flows over the froth activator assembly; a raised, horizontal flat activator surface having a plurality of fixed sized openings distributed uniformly across the activator surface corresponding to a plurality of fixed sized openings distributed uniformly across a portion of said horizontal fluid contacting tray below the froth activator; and a downstream edge being positioned below the upper portion of the deflector. A downstream edge surface may extend vertically down from the activator surface to attach to the fluid contacting tray. |
