2500 mm packed tower internal 304 material liquid collector
1. Hualai liquid collector:
It works between packing beds. The divice collects liquid flow
downwards and re-distributes the liquid averagely. So the liquid
collector and re-distributor helps maintain average liquid flow in
the tower.
2. Hualai liquid collector brief view:
| Tower internal Type | vapor distributor & chimney tray |
| Tower diameter | ＞ 1000 mm |
| Liquid Range | 20.5 - 100 m³/h/m² |
| Support at Shell | Support ring and clips for major beams if the diameter is >3000
mm |
| Construction type | Like a chimney tray it is designed in parts to pass through the
column manway and to be installed together by welding or bolts and
nuts. |
| Design | The distributor is designed to generate a controlled pressure drop
through the
chimneys that makes the vapor spreading across the entire section
of the column.
Normally the design pressure drop ranges from 10 to 50 mm H2O |
| Levelling method | The operation of this device is not affected by a possible out of
levelness of the
support ring |
| Applications | Typical application is below packed beds, to distibute the vapor
and collect the liquid
to be drawn-off or redistributed to a lower bed |
3. Hualai liquid collector and re-distributor use:
If you need to draw off the liquid partially or totally from some
height of the tower, chimney trays are used. But considering the
high turbulence velocity of liquid in structured packing, chimney
trays are recommended among two structured packing beds. Column
internals play very important role in effective mass transfer
performance. So they need to be designed carefully for both process
and mechanical point. Meanwhile, the engineers put great effort
into structured packing and random packing development in the
recent years. The column internals include mist eliminators, feed
pipes, distributors, re-distributors, support plates, bed limiters,
collector trays, etc.
Because the chimney tray frequently maintains a fairly high liquid
level ( consequently a tremendous weight ), we shall pay special
attention to its design. The first point is the positioning of the
drain nozzle. It is a flat chimney tray when the nozzle is at the
tray floor level. Or a portion of the tray floor can be made lower
than the rest of area to form a sump and then the nozzle to be
located at the sump floor. Both designs require the same liquid
head to force the design flow rate through the nozzles. We can
locate the nozzle in a sump to lower the liquid level on the
chimney tray by an amount equal to the head requirement. This
reduces the liquid weight supported by the tray, but has little
effect on residence time. For low liquid flow, usually a 6 - 12
inch height chimney is enough. And for high liquid flow, a 12 - 18
inch height chimney is used if the drain nozzle is at an inlet
sump. There should be hats above all the chimneys by a sufficient
space to provide a peripheral area of 1.25 times of the chimney
area. If a leak-free design is required, the inlet sump should be
seal-welded to the chimney floor, and use gaskets when necessary.
The center sump is preferred over a side sump. Because some flow
restriction can occur at very high liquid rates due to the shorter
weir lengths of side sumps.
4. Hualai is able to provide various kinds of tower internals:
Tower internals play very important role in effective mass transfer
performance. So they need to be designed carefully for both process
and mechanical point. Meanwhile, our engineers put great effort
into structured packing and random packing development in the
recent years. The column internals include mist eliminators, feed
pipes, distributors, re-distributors, support plates, bed limiters,
collector trays, chimney trays etc.
5. Hualai liquid collector production:
Welcome your iquiry to Hualai factory!
