baltur GI 350 DSPG Manual De Instrucciones página 38

DIAGRAM OF LIGHT OIL MODULATING BURNERS (MAGNET - NOZZLE WITHOUT PIN)
E
N
G
L
I
CONNECTION AT THE FUEL
FEEDING DIAGRAM FOR
S
ONE OR MORE BURNERS
(SEE 0002901120)
H
DIAGRAM OF A DISMANTLED ( C.B. ) CHARLES BERGONZO NOZZLE (WITHOUT PIN)
Nozzle ID.:
Flow rate kg/h
Spray angle (30° - 45° - 60° - 80°)
Flow ratio (1/3 = B3 - 1/5 = B5)
Fuel outlet
For the nozzle to operate properly, its "return" section must never be completely closed. This is achived by regulating where
!
the burner is started up for the first time. In practice, when the nozzle is operating at the maximum flow rate, the difference in
pressure between the "delivery" (pump pressure) and "return" (pressure at the return pressure regulator) pressure (running
to and from the nozzle) must be at least 2 ÷ 3 bar.
Example: Pump pressure
Return pressure
Return pressure
1 - Filter
2 - Burner pump
3 - Pressure gauge (0÷4 bar)
4 - Atomizer unit
5 - Return nozzle without pin
6 - Rod with closing pins
7 - By-pass holes
8 - Closing spring
9 - Opening magnet
10 - Return pressure regulator min 10÷12 bar max 18÷20 bar
11 - Modulation servomotor
12 - Control disk for variation of fuel / air delivery
13 - Air regulation shutters
14 - Flexible pipe
Air turbolence
chambre
Fuel return hole
20 bar
20 - 2 = 18 bar
20 - 3 = 17 bar
10 / 24
0006080098_201109
Viton O-ring (oil and teperature resistant)
Fuel inlet
Pump pressure 22 bar
Return pressure 22 - 3 = 19 bar
Return pressure 22 - 2 = 20 bar
Fuel return