- 积分
- 15
- 注册时间
- 2012-6-15
- 积分
- 15

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本人是新手,计算一个稳定塔,在塔板水力学核算中,得出以下结果,求各位大神帮忙看看结果是不是合适。下面最后出现的警告是什么意思?FF代表什么意思啊?
TRAY SIZING RESULTS
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 0.019 0.00094 0.003 408.3 20.6 381. 34.7 457. 25.9 1
MECHANICAL RESTRICTION ON TRAY 2, FOR FF = 70.0, CALCD. DIA = 255.9
3 0.020 0.00098 0.003 416.4 21.3 381. 36.5 457. 27.2 1
MECHANICAL RESTRICTION ON TRAY 3, FOR FF = 70.0, CALCD. DIA = 264.0
4 0.020 0.00100 0.003 420.2 21.6 381. 37.4 457. 27.8 1
MECHANICAL RESTRICTION ON TRAY 4, FOR FF = 70.0, CALCD. DIA = 267.8
5 0.021 0.00101 0.003 422.1 21.8 381. 37.8 457. 28.1 1
MECHANICAL RESTRICTION ON TRAY 5, FOR FF = 70.0, CALCD. DIA = 269.7
6 0.021 0.00102 0.003 423.7 21.9 381. 38.2 457. 28.3 1
MECHANICAL RESTRICTION ON TRAY 6, FOR FF = 70.0, CALCD. DIA = 271.3
7 0.021 0.00104 0.003 427.3 22.1 381. 39.1 457. 28.9 1
MECHANICAL RESTRICTION ON TRAY 7, FOR FF = 70.0, CALCD. DIA = 274.9
8 0.021 0.00110 0.003 436.3 22.7 381. 41.3 457. 30.5 1
MECHANICAL RESTRICTION ON TRAY 8, FOR FF = 70.0, CALCD. DIA = 283.9
** WARNING ** Design diameter includes mechanical restriction allowances.
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