Table
of
Contents
CHAPTER 1
1-1
GENERAL DESCRIPTION AND PRINCIPLES OF OPERATION •
.1·1
A
The
Boiler
1-2
B.
The
Burner
and
Control System
1·2
C.
Control
and
Component Function
1-3
D.
Controls Common to
aJI
Boilers
1-4
E.
Steam Controls
(AJI
Fuels)
1-6
F.
Hot Water Controls
(AJI
Fuels)
1-8
G.
Controls for Gas Firing
1-8
H.
Controls Common to Oil Fired Boilers
(lncfuding
combination) ·
1-10
I.
Additional Controls For Heavy Oil
1-13
J. Controls for Combination Burners Only
1-16
K CombustionAir
1-16
L . Automatic Ignition
1-16
M.
Atomizing Air
1-16
N.
Oil Fuel Flow - Ught Oil
1-18
0.
Oil Fuel Flow - Heavy
Oil
1-18
P.
Gas Fuel Flow
1-21
Q. Modulating Firing
1-22
CHAPTER 2
2-1
THE PRESSURE VESSEL
• • • •
II
e • • • • a • • • • • • e • • 2·1
A
General
2-1
B.
Construction 2-2
C.
Water Requirements 2-2
D.
Water Treatment 2-6
E.
Cleaning
2-7
F.
Boil-out
of
a New Unit 2-8
G.
Washing Out
2-10
H.
Slowdown-
Steam Boiler
2-10
I.
Periodic Inspection 2-13
J.
Preparation for Extended Lay-up
2-14
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