Page 282 - Applied Process Design For Chemical And Petrochemical Plants Volume II

Packed Towers 271
Liquid Flow
II
Not Greater
inlet Nozzle
Support
459 to
u
Wall Wiper
of Packing

and Redistributor

For These Two,ca
Substitute "Weir-Type
Distributor, o
Prym Suppor
Liquid Distributor

Second Layer Medium Rings
First Layer Large Rings
Plate or Grid Support
Minimum to 3/4 Tower Diameter

Figure 9-15A. Hold-down plate for packed tower. Used by permis-
Figure 9-14. Liquid redistribution in packed towers. Used by permis- sion of US. Stoneware Co. (now, Norton Chemical Process Products
sion of Norton Chemical Process Products Corp. Corp.).

I

TOWER I.D. DIA. OVER PLATE NUMBER MIN. DIA. APPROX.
-- SPACERS HEIGHT DIA OF OF NET WEIGHT
1 '
INCHES MM A E--- C PIECES- ~~nccEss--~__ (LBS_lt--- -
17:4 438 17" 4" 16,,---- L I, IO" 36
~~~
2 I 1; 540.- -. 21"
13"
59
23 591-.------~ 13" -_-~______~
19 7, 743 20',"
36
___ 9 I4 -__ 351," 4;, .~~~~ __ -__ -
-
~
~~
~
42 1067 4 I 4 I 14'' 3 16" 188
L- - I-- J
Figure 9-158. Typical metal hold-down plate for use with ceramic or carbon packing. Note: It rests directly on top of the packing; bed-limiters
are similar in design in metal or plastic, bolted to column wall above packing. Used by permission; Norton Chemical Process Products Corp.,
Bull. TA-80.