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0006081041_201102
COMBUSTION HEAD AIR ADJUSTMENT
The combustion head has an adjustment device
so that the air passage between the disk and the
combustion head is opened or closed. You are thus
able to obtain, closing the passage, high pressure
upstream of the disk even at low capacity. The high
speed and turbulence of the air provides for its greater
penetration into the fuel and therefore an excellent
mixture and flame stability. It may be necessary to
have high air pressure before the disk to prevent flame
fluctuations, particularly essential when the burner
works on the combustion chamber that is pressurized
and/or at a high thermal load.
It is clear from the above that the device that closes
the air to the blast-pipe must be set at a position such
as to always obtain very high air pressure behind the
disk. It is advisable to adjust in such a way as to obtain
a closure of the air at the combustion head that will
require a significant opening of the air damper that
regulates the aspiration flow from the burner fan. This
must of course be the case when the burner is working
at maximum desired supply.
In practice you have to start the adjustment with the
device that closes the air at the combustion head in
an intermediate position, switching on the burner for
approximate adjustment as explained previously.
When the maximum desired supply has been reached,
the position of the device that closes the air at the
combustion head is corrected, moving it forward and
backwards, until the right amount of air is flowing to the
supply, with the air damper in significantly open.
N.B. The above adjustments are indicative only; position the combustion head according to
the characteristics of the combustion chamber
X= Distance between combustion head and disk; adjust the
distance X following the indications below:
a) slacken screw 1
b) turn screw 2 to position the combustion head 3, referring
to index 4.
c) adjust the distance X between minimum and maximum
according the indications in the table.
BURNER
X
Value indicated by index 4
TBG 55 / 55P
4 ÷ 28
1 ÷ 3,7
TBG 85P
5÷ 36
1 ÷ 4,5
TBG 120P
17÷ 54
1 ÷ 5
TBG 150P
17÷ 36
1 ÷ 3,2
TBG 210P
14÷ 51
1 ÷ 5
COMBUSTION HEAD ADJUSTMENT SCHEME
Summary of Contents for TBG 55
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