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| Column Trays - Finepac ®
offers following different types of trays: |
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FINEPAC ®are
able to design and manufacture all types of conventional
counterflow trays and distillation column (with the exception of certain
proprietary types) for any column size and from
any metallic material that can be worked using
punching and bending processes.
The scope of work undertaken by FINEPAC ®can
vary to suit the individual project or maintenance
requirement of custom fabrication of trays or
tray parts as per customer design and specifications
to complete installation |
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| Column Trays - FINEPAC ®offers
following different type of trays |
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1. Sieve Trays
2. Bubble cap trays
3. Fixed valve trays
4. Cartridge trays
5. Float valve trays |
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| Tray Configuration: |
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| We give maximum attention to the below key tray
design parameters, which impact on column operation: |
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A) Floating Valve
Trays:
1. The floating valve elements are rectangular or
round,
2. Valves are floating due to vapour flow from the
underneath.
3. This maintains near constant pressure drop with
respect to variation in vapour flow rates. Due to
this characteristics valve trays provide higher
sustained efficiency.
4. There is no liquid flow under valves.
5. The construction offers improved turn down ratio.
6. Wide legs and locking of valve rotation increases
stability and reduces damage to the valves.
B) Fixed Valve Trays:
1. Fixed valves are bridge like construction, extruded
from the tray deck
2. These valves have larger vapour passage,
3. The trays operate at low pressure drops with
higher capacities.
4. Entrainment of liquid droplets is reduced appreciably.
5. The type of construction offers increased stiffness
to the tray deck. No movement of valves and hence
no wear and trays.
6. Excellent fouling resistance C)
Bubble cap Trays:
1. Bell shaped inverted bubble caps having vertical
slots are fixed over cylindrical risers.
2. Vapours travel upwards through risers and diffuse
through the bubble caps.
3. Effective diffusion of gas through liquid pool
maintained around bubble caps.
4. Wide range of turn down ratios without weeping.
5. Lower vapour/Liquid loads are |
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