Boilers 93
Cap nut
Swirl / Office
ports J plate
Swirl
dumber
(a) Pressure jet burner
Orifice
Drive for
'rotating cup
Fuel
Rotating
cup (b) Rotating cup burner
Air
Fuel supply
supply
Spra r Cap nut
f
nozzle
(c) Steam blast jet burner
Figure 4.16 Types of burner