Diagram Of Fuel Oil Modulating Burners - baltur BT 75 DSPN Manual De Instrucciones

DIAGRAM OF A DISMANTLED (CB) CHARLES BERGONZO NOZZLE (WITHOUT PIN)
E
N
Nozzle ID:
G
Flow rate in kg/h
Spray angle (30° - 45° - 60° - 80°)
L
Flow ratio (1/3 =B3 - 1/5 = B5)
I
S
H
Fuel outlet
N.B. For the nozzle to operate properly, its "return" section must never be completely closed.
This is achievedby regulating when 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 hte returnpressure regulator) pres-
sures (running to and from the nozzle) must be at least 2÷3 bar.
Example: Pump pressure
Return pressure
Air turbulence chamber
Fuel return holes
20 bar Pump pressure
20 - 2 = 18 Return pressure
20 - 3 = 17
15 / 31
98321_2010/03
Viton O-ring
(oil and temperature reristant)
Fuel inlet
22 bar
22 - 3 = 19 bar
22 - 2 = 20 bar
N° BT 9353/1
Fuel return