3M MEMBRANA Liqui-Cel, Инструкция по уборке

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19
Liqui-Cel
®
Membrane Contactors Cleaning Guidelines
B. Final Drying
The final drying step involves flowing a clean, dry, filtered (0.2 micron) gas into the top shellside
port. Using a warm gas will reduce drying time. Nitrogen is preferred in the final drying step as hot
air can shorten the membrane life. See Table 9 for estimated flow rate and drying time guidelines.
Keep the lower shellside port closed.
Table 8: Final Drying Conditions
* Maximum gas pressure =
10 psig (0.7 kg/cm
2
)
C. Drying Schematics
Illustration 5: Bulk Water Removal/Initial Drying Step
F
P
= Flow Indicator
= Pressure Gauge
= Valve
F
P
Shellside
Shellside
Lumenside
Lumenside
Keep liquid outlet port open gas can
exit through the port
Liqui-Cel
®
Membrane Contactor Size Gas Flow Rate* Estimated Drying Time
2 x 6 0.5 scfm (0.84 m
3
/hr) 1 hr @ 60 ºC (140 ºF)
2.5 x 8 1 scfm (1.7 m
3
/hr) 1 hr @ 60 ºC (140 ºF)
4 x 13 5 scfm 4 hr @ 60 ºC (140 ºF)
4 x 28 10 scfm (17 m
3
/hr) 4 hr @ 60 ºC (140 ºF)
6 x 28 25 scfm ( 40 m
3
/hr) 8 hr @ 60 ºC (140 ºF)
8 x 20 20 scfm 8 hr @ 60 ºC (140 ºF)
8 x 40 30 scfm 16 hr @ 60 ºC (140 ºF)
8 x 80 60 scfm 24 hr @ 60 ºC (140 ºF)
10 x 28 40 scfm (120 m
3
/hr) 16 hr @ 60 ºC (140 ºF)
14 x 28 50 scfm ( 130 m
3
/hr) 24 hr @ 60 ºC (140 ºF)
14 x 40 100 scfm 24 hr @ 60 ºC (140 ºF)