Unigas S10, Установка, эксплуатация и обслуживание, Страница: 6 / 32

PART I: INSTALLATION 6
PRESSURE - RATE IN COMBUSTION HEAD CURVES
The pressure - gas rate curves are referred to the burner in operation with 3% of O
2
, with the combustion head at the maximum
opening, servocontrol at the maximum opening and gas butterfly valve fully opened.. Refer to Fig. 4, showing the correct way to
take the gas pressure, considering values of backpressure in combustion chamber.
Fig. 4
Key
1 Boiler
2 Gas pressure port on butterfly valve
3 Sightglass cooling port
4 Water column pressure gauge
Curves are referred to a null pressure in combustion head!
NOTE: THE PRESSURE-RATE CURVES ARE INDICATIVE; FOR A PROPER SETTING OF THE GAS RATE, PLEASE
REFER TO THE GAS METER READING.
G
AS PR
ESSU
R
E
IN
COM
B
US
T
ION HE
A
D
m
b
a
r
S10
NATURAL GAS FLOW RATE Stm
3
/h
Fig. 5
G
A
S
PR
ES
SU
R
E
I
N
C
O
MB
U
S
T
IO
N
H
E
A
D
mba
r
S18
NATURAL GAS FLOW RATE Stm
3
/h
Fig. 6
1
3
4
2
0
1
2
3
4
5
6
4 5 6 7 8 9 10 11 12 13 14 15 16
0
2
4
6
8
4 6 8 10 12 14 16 18 20 22