Strange phenomena observed during the operation of a packed tower
Thread Content
Packed tower – Observation through the middle sight glass revealed that liquid flowed in lines from the liquid collector straight down to the lower layer of packing; and it wasn’t just one set of such streams, but multiple sets. Why? (The material aggregates.)
It’s the new tower, right? If this phenomenon has just started to occur, it’s likely that there’s a blockage!
What kind of materials do you produce? It might be blocked.
There are wired distribution and point distribution types of distributors; the type you mentioned should be point distribution
Let some experts analyze it; I don’t understand either
With materials that aggregate, is a packed tower still needed? This design is quite unreasonable---------It is recommended to use a plate tower instead
It might be blocked; this is quite troublesome, as it involves controlling the process parameters
There must be a distributor between the liquid collector and the packing as well; after the liquid gathers in the collector, it is either directed to the distributor below through downcomers, or it flows to the distributor below through the numerous sieve holes in the collection channels. As you said, there is liquid flowing out in lines and dripping straight down. If the design is correct, then the distributor on the packing should be a disc-type distributor; but since it’s disc-type, the collector above it can be omitted. It is also possible that the lower part consists of a slot distributor, but the diameter of the guide tubes or the gap at the bottom is too small, resulting in poor flow of the liquid; as a consequence, the liquid flows down from other areas of the collector. It is recommended to reduce the load and see what changes occur. Specifically, it is necessary to analyze the drawings of the distributor and collector. There are no specific drawings; it’s all just a rough guess.
What was it like before? What impact does it have on the operations or the product? As mentioned above, this could be normal....
Adjust the operation of the tower by reducing the feed rate or the tower’s circulation rate; observe the situation before making a decision
Firstly, for the handling of materials that tend to cause clogging, anti-clogging trays should be used； Additionally, the specific structure of the distributor and the associated phenomena need to be described in detail, or a schematic diagram should be provided, in order to make an accurate judgment ； Finally, it is necessary to analyze the changes in the pressure drop across the entire tower to determine whether local blockages have occurred ；