Just some detail for you mate:
Volumes, power and vapour speeds for you to ponder:
(Based on a column 1200mm high)
Note that your 4 x 2" "gattling gun" has the exact same volume as a 4" column.
So you really need to be looking at 4,800W, have you considered your available electrical supply?
Now, take your idea and multiply it by many hundreds of 2" columns several stories high; then surround the column bundle in a jacket pumped full of steam and you have yourself something I've worked on for years ;-)
I'll preface what I'm about to say by firstly stating "I don't have too many moonshine stilin' runs under my belt".
I do stripping runs at full power.
When I have enough strippate for a run I run the VM on 23L of 40% ABV strippate...at full power for the entire run. If I cut the power back and took off slower towards the end I could possibly get more hearts but time is more important to me. The tails don't amount to much and besides they'll go into another run one day so no real loss.
Now, as for the multi column:
I packed and insulated both columns identically, matched the reflux condensers as best I could. In all honesty they seemed to be operating in tune and the only way I could have improved it would have been to ensure the exact inlet temp and flow of cooling water to each of the reflux condensers but for the sake of a speed test I was happy to run all loops in series.
For more than 2 columns I would consider enclosing all columns (gattling gun) inside an insulated shell.
For your job I'd consider using a distributor plate, which would be easier than what you have drawn. I have photos of what these look like in falling film multi effect evaporators (35kL/h and 77kL/h) I can upload later if desired.
This puppy will be damn heavy! Imagine taking it off to do a stripping run :angry-banghead:
This puppy will produce the same amount as a 4" if you are lucky but starting with the 4" offers you a modular step into the world of bubble plates should you desire rums etc in the future.
If I didn't already have access to vast quantities of 2" and less components I would not have hesitated in going down the 3" or 4" build path.
I'd suggest you consider the same, unless you have 2" on hand AND can do all the welding yourself you will find it far simpler and far cheaper to build the 4".
Alternatively, you could by a ready built plug-her-in and off-you-go 4" from Mac right here in the FSD store :handgestures-thumbupleft:
I'll be watching you :D
Mech.