Downcomers

An extensive range of possible downcomer geometries is available for all tray constructions. In principle one-, two- and four-flow designs as well as reverse flow geometries can be calculated. The downcomers can be implemented as segments ("chordal"), recessed, multi-chordal, cartridge or tube.

The downcomer weir can be notched, blocked or swept-back, the inlet can be carried out simply, as recessed seal pan with an inlet weir (simple, notched or blocked) or lip.

Flow Paths

There are different layouts for the liquid flow across the cross sectional area of the tower.

Single Pass Layout
Single Pass Layout with cascade
Two Pass Layout
Three Pass Layout
Four Pass Layout
Reverse Flow Layout
Dual Flow Layout
Shower Deck / Baffle Tray Layout
 

Downcomer Layout

There are various downcomer layouts.

Chordal Downcomer
Sloped Downcomer
Multi-Chordal Downcomer
Enveloped Downcomer
Piped Downcomer
 

Outlet Weir Layouts

All Outlet Weirs can be varied in all parameters.

Plain outlet weir
Notched Outlet Weir
Swept Back Weir
Weir of Piped Downcomers
Anti-Jump Baffle
Weir Spouts

Downcomer Inlet

There are various downcomer inlet options.

Standard Clearance
Smooth Inlet
Recessed Sealpan
Inlet weir, plain
Inlet weir, notched