PRO/II simulates a floating valve tower with a diameter of 1600 mm
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PRO/II simulates a floating valve tower with a diameter of 1600 mm. The results are as follows: TRAY VAPOR LIQUID VLOAD -- DESIGN -- NEXT SMALLER NEXT LARGER NP M3/S M3/S M3/S DIA, MM FF DIA, MM FF DIA, MM FF ---- ----- ------- ----- ------- ---- ------- ---- ------- ---- -- 2 1.167 0.00002 0.035 911.5 50.4 762. 72.1 914. 50.1 1 MECHANICAL RESTRICTION ON TRAY 2, FOR FF = 60.0, CALCD. DIA = 835.3 3 1.150 0.00002 0.034 907.2 50.3 762. 71.4 914. 49.6 1 MECHANICAL RESTRICTION ON TRAY 3, FOR FF = 60.0, CALCD. DIA = 831.0 4 1.133 0.00002 0.034 903.0 50.3 762. 70.6 914. 49.1 1 MECHANICAL RESTRICTION ON TRAY 4, FOR FF = 60.0, CALCD. DIA = 826.8 5 1.116 0.00002 0.034 898.8 50.3 762. 69.9 914. 48.6 1 MECHANICAL RESTRICTION ON TRAY 5, FOR FF = 60.0, CALCD. DIA = 822.6 6 1.100 0.00002 0.034 894.6 50.2 762. 69.2 914. 48.1 1 MECHANICAL RESTRICTION ON TRAY 6, FOR FF = 60.0, CALCD. DIA = 818.4 7 1.084 0.00001 0.033 890.5 50.2 762. 68.5 914. 47.6 1 MECHANICAL RESTRICTION ON TRAY 7, FOR FF = 60.0, CALCD. DIA = 814.3 8 1.069 0.00001 0.033 886.4 50.1 762. 67.8 914. 47.1 1 MECHANICAL RESTRICTION ON TRAY 8, FOR FF = 60.0, CALCD. DIA = 810.2 9 1.993 0.00574 0.062 1249.5 60.0 1219. 62.8 1372. 50.5 1 10 1.994 0.00578 0.063 1253.3 60.0 1219. 63.2 1372. 50.7 1 11 1.984 0.00580 0.063 1253.6 60.0 1219. 63.2 1372. 50.8 1 12 1.972 0.00582 0.063 1253.2 60.0 1219. 63.2 1372. 50.7 1 13 1.960 0.00584 0.063 1252.8 60.0 1219. 63.1 1372. 50.7 1 14 1.949 0.00585 0.063 1252.6 60.0 1219. 63.1 1372. 50.7 1 15 1.939 0.00587 0.063 1252.8 60.0 1219. 63.1 1372. 50.7 1 16 1.930 0.00590 0.064 1253.3 60.0 1219. 63.2 1372. 50.8 1 17 1.920 0.00592 0.064 1254.0 60.0 1219. 63.2 1372. 50.8 1 18 1.899 0.00594 0.063 1251.0 60.0 1219. 63.0 1372. 50.6 1 ** WARNING ** Design diameter includes mechanical restriction allowances. What to do? Is it not necessary to enter the tower diameter when simulating a floating valve column with PRO/II?
Is this result normal? How to deal with this warning **WARNING**: The design diameter includes allowances for mechanical constraints. Thank you
This post was last edited by chenxh123 on 2016-4-14 at 14:27. FF, you must have set it to 60%, right? For the second to eighth tray, if 60% of the value you set is used, the diameter calculated by the software for the second tray is 835.3 mm; mechanical constraints may arise during installation, so it’s likely that installation will be difficult. Therefore, the software suggests a diameter of 911.5 mm with FF=50.4. There are no issues with the ninth to twentieth trays. As for the solution, I think the FF value can be adjusted based on the results calculated by software.
What does the “NEXT SMALLER NEXT LARGER” column mean?
FF corresponding to larger and smaller tray diameters
FF corresponding to larger and smaller tray diameters