6-26
October 2012
6.5
Boiler and Steam Systems
30
Ibid.
Figure 6-5. Water-Tube Steam Boiler Configuration
Fire-Tube Boilers
The most common type of steam boiler is the fire-tube boiler (see Figure 6-6).
30
In
this type of system, a gas- or oil-fired heater directs heat onto a series of tubes that
are immersed in water, which transfers heat to the water, generating steam.
Figure 6-6. Fire-Tube Steam Boiler Configuration
Smoke Stack
Steam Generated
Water Pipes
Water Supply
Steam Generated
F
u
rn
a
c
e
Steam Generated
Smoke Stack
Smoke
Water Heated by Hot Pipes
Hot Metal Pipes
Fu
r
n
a
c
e
