37
Fig. 9
1.
Clean flues
A
, flame tube
B
and the reversing
chamber and remove combustion residues.
2. Remove combustion residues from the flue pipe
and the flue outlet.
Cleaning Economiser heating surfaces
Fig. 10
1. Remove combustion residues via inspection
ports
A
or drain cleaning water through conden-
sate drain connectors
B
on the flue gas collector.
2. Clean the heat exchanger surfaces through inspec-
tion port
C
, e.g. with pressure lances or, in cases
of severe contamination, with feedwater.
Note
In the case of wet cleaning always ensure that the
exchanger surfaces are at almost identical temper-
atures to the feedwater to prevent thermal stresses
and thermal shocks.
Checking the gaskets and packing cords on the flue gas side
Cleaning the sight glass
Fig. 11
Clean the sight glass. Check gaskets A
. Replace if
necessary.
Commissioning, inspection, maintenance
Cleaning the heating surface and flue gas collector
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