What height is appropriate for one section of packing in a packed tower?
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:call: :handshake :handshake
A length of 2~3m is more suitable: handshake
It’s not necessarily a specific amount; I’ve seen ones that are 2 meters, 3 meters, 4 meters, 5 meters, 6 meters, and 7 meters long. It’s probably because the uses and manufacturing processes are different, resulting in different selection criteria. It depends on what exactly the LZ is intended for
One can refer to Horner’s recommendations; his criteria for redistribution are more comprehensive and better suited to actual engineering situations: 1) Bed height of 7 m; 2) Equivalent to the height of ten theoretical plates or mass transfer units; 3) 6–8 times the diameter of the tower. The minimum value among these three criteria should be adopted.
The main considerations are the pressure-bearing capacity of the packing, as well as the ratio of the tower diameter to the packing diameter. Furthermore, if the packing section is too long, the wall flow effect should be taken into account, and a liquid redistributor can be added between the packings. Generally, each section of granular packing should have less than 20 theoretical plates.
Support the person upstairs. One more thing: it is also necessary to consider whether the pressure drop caused by the filler meets the system’s requirements.
I’m not sure there are specific standards; the main considerations are the distribution of the packing, the load-bearing capacity of the support structure, as well as the tower diameter, the diameter of the packing, and the flow distribution. In addition, ease of installation and the location of the manhole should be considered. Based on the principles of convenience and efficiency.
It is generally 5-6 times the diameter of the tower, with a distributor added in the middle
For lengths under 6 meters, it is mainly necessary to check the height-to-diameter ratio according to the principles of chemical engineering
This was proposed by the process engineers; it is calculated using PRO2 software, and it has no direct connection to the tower diameter
Does anyone have any specific materials for reference? Improvement depends on everyone’s guidance. Could you tell me some information about design?
The pressure drop needs to be taken into account; if it’s too high, the calculation will not succeed. It’s necessary to divide it into sections, with each section being less than 7 meters in length
The packing height is not determined arbitrarily; rather, it is calculated by the process engineering team based on the medium (vapor and liquid phases) and the packing parameters.