guerky
Chemical
- Feb 10, 2015
- 33
I'm changing a PTFE support plate in a packed distillation column for a SS316 plate.
This plate must have the maximum possible open area to minimize capacity limitations before flooding in the column, so i must drill the maximum possible number of holes (I know that there are special designed support plates to maximize the area, but im truth i need only a small improvement over the actual suport plate).
How can i calculate the minimum metal width between the holes of a plate with holes drilled in a triangular pattern (exactly like this one ?
1mm spacing between holes seems good enough for the plate not bending, given the small support beams spacing right bellow this plate. I've done some estimations based on cross-sectional sizing of wires supporting pontual loads, but i don't think it is the right aproach.
Data:
Column diameter: 300 mm
Plate diameter: 280 mm (16 mm calculated at max. thermal expansion)
Plate thicknes: 1,5 mm
Hole diameter: 15 mm
Temperatura range: 10-110°C
Total Load: 89 kg of packing (1,5 m of 1" ceramic random packing over a 70686 mm² area)
Support beamns width: 15 mm
Support beams spacing: 25 mm
316 tensile strenght: 485 Mpa
Thank you all in advance for your time.
This plate must have the maximum possible open area to minimize capacity limitations before flooding in the column, so i must drill the maximum possible number of holes (I know that there are special designed support plates to maximize the area, but im truth i need only a small improvement over the actual suport plate).
How can i calculate the minimum metal width between the holes of a plate with holes drilled in a triangular pattern (exactly like this one ?
1mm spacing between holes seems good enough for the plate not bending, given the small support beams spacing right bellow this plate. I've done some estimations based on cross-sectional sizing of wires supporting pontual loads, but i don't think it is the right aproach.
Data:
Column diameter: 300 mm
Plate diameter: 280 mm (16 mm calculated at max. thermal expansion)
Plate thicknes: 1,5 mm
Hole diameter: 15 mm
Temperatura range: 10-110°C
Total Load: 89 kg of packing (1,5 m of 1" ceramic random packing over a 70686 mm² area)
Support beamns width: 15 mm
Support beams spacing: 25 mm
316 tensile strenght: 485 Mpa
Thank you all in advance for your time.