| 摘要 |
A vapor-liquid contacting tray having downcomer means (10) arranged to discharge liquid onto liquid impingement area portions (30) of the horizontal part (12) main top surface of an underlying tray in a contacting column. A plurality of slot means (3) is distributed across the liquid impingement area portions (30) of the tray horizontal part (12) main top surface to provide vapor flow for prevention of weeping of impinging liquid, discharged for downcomer means (10) in an overlying tray, through fixed size openings in the liquid impingement area portions of the tray horizontal part (12).
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