BUCHI Nano Spray Dryer B-90 - Manual (Page 31)

4 Description of function
31 B-90 Operation Manual, Version B
4.9 Dehumidifier B-296
The Dehumidifier B-296 is an accessory which can dry filtered gas at constant and reproducible
humidity conditions with a dew point of 3 to 5 °C. The humidity condensates while passing the refrig-
erator of the Dehumidifier B-296 and is being collected in a closed condensate bottle.
‘open loop’ inlet air conditioning
In ‘open loop’ configuration with Aspirator and Inlet filter the Dehumidifier B-296 has to be connected
to the gas inlet of the Nano Spray Dryer B-90 for inlet air conditioning. The dried, cooled air enters the
spray dryer subsequently.
Inlet filter
Dehumidifier
B-296
Exhaust gas
T
COOL
Nano Spray Dryer B-90
Basic
Aspirator
T
OUT
P
T
IN
Outlet filter
FI
Condensate
Control
Feed
Product
a
b
c
d
e
a Air inlet through filter
b Aspirator in blowing mode
c Dehumidifier B-296 to condensate humidity
d Dry air output towards Nano Spray Dryer B-90 e Condensed water output to collecting flask