Riello DB 12 SM C03 TC A0 FS1 T250, Инструкции по установке, использованию и обслуживанию

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20126064
12 GB
Technical description of the burner
4.11 Gas side pressure drops
Gas pressure on the basis of the maximum output developed by
the burner is given by the curves in Fig. 6.
It represents the pressure drop in the combustion head.
Natural gas G 20 - N.C.V. = 10 kWh/Nm
3
The curves were taken in the following conditions:
•
pressure measured at the test point on the pressure switch
downstream from the gas butterfly valve;
• combustion chamber at 0 mbar;
• burner working at full output.
The pressure drop of the completely open butterfly valve is given
in Fig. 7.
WARNING
Add the pressure of the combustion chamber in
mbar to the value of the combustion head drop.
Fig. 6
Combustion head pressure drop
100
90
80
70
60
50
40
30
20
10
0 2000 4000 6000 8000 10000 12000 14000
mbar
KW
DB
9
DB
12
D3978
Pb (burner output) [kW]
∆
p
[m
b
a
r]
mbar
KW
18
16
14
12
10
8
6
4
2
Fig. 7
Butterfly valve pressure drop
D3979
∆
p
[m
b
a
r]
Pb (burner output) [kW]