Distributors are a key component for the correct distribution of liquid in a packing. We provide the design and supply of a wide range of distributors: channel / VEP Distributors / tubular. Uniform liquid distribution is crucial to ensure good separation performance from a rectification / absorption column containing structured/random packing, especially for large-diameter columns. The geometric configuration of the packing thus promotes cuts in the liquid streams and thus mutual contact between the liquid and gas phases.
Collectors:
The collector is used as a separate unit for collecting liquids from individual packing sections. For this collector, an annular channel needs to be welded to the column wall. The pressure loss for this collector is negligible.
For multi-section columns where phase redistribution is necessary, a collector is combined with a support grid. As a grid for packing, it can support the direct load of packing with a specific surface area of up to 350 m²/m³. For finer packing, additional drip trays are used.
This un-welded SLT collector is often used in applications where the space between individual sections in a column plays a key role. This collector requires an internal support ring welded to the column shell.
A chimney tray distributor is used whenever the collection and redistribution of liquid is required under very high liquid loads. It resembles a chimney tray; however, the chimney arrangement is designed to suit the liquid distribution and pressure drop requirements.
For applications with moderate fluid loading where fluid mixing is important, a separate collection tank must collect the fluid and discharge it into a fluid distributor located below it.
Support joists
Support grids are used as a support segment for structured packing. They require support rings to be welded to the column wall, onto which these components are loosely placed.
For packings with a specific surface area greater than 350 m²/m³ of packing volume, they are constructed with drip trays to prevent premature flooding of the packing. These support grids are placed on support rings or cleats welded to the column shell. For columns with an internal diameter greater than 3 m, additional supports and main beams may be required.
Special designs are required for grates used in loose filling, serving to distribute gas into the lower layers of the packing. Both grates have an open cross-sectional area.
