Union Pury 250e, Руководство пользователя

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Technical Data Manual Pury 250e
26
Manual Pury 250e 2006-06-08
10.3. Water vapour
Water vapour condenses from the process gas at a defined temperature and
pressure. The graph shows the relationship between water vapour at various
temperatures and the curve shows the point at which the sample gas can either hold
or condense water vapour, also referred to as the dew point temperature. Note: The
addition of sulfur components can also raise its dew point.
If the gas temperature is above ambient temperature a heated sample line has to be
installed. The hose temperature needs to be at least 10°C
above the temperature
shown for the % water vapour in the process gas.
Note: Reducing the gas temperature in an unheated line from 100 to 20°C, drops out
97% of the water.
100
80
60
40
20
0
40 60 80 100
H
2
0 (g) %
C
20
This graph shows water vapour condensation point from 0 to 100°C