MIL-HDBK-1003/7
8.3
Heater Drain Pumps.................................116
8.3.1
Low Pressure Heater Drain Pump.....................116
8.3.2
High Pressure Heater Drain Pumps...................117
8.4
Deaerators.........................................117
8.4.1
Deaerator Function.................................117
8.4.2
Deaerator Design Pressure..........................117
8.4.3
Deaerator Storage Volume...........................118
8.4.4
Deaerator Rating...................................120
8.4.4.1
Rated Capacity.....................................120
8.4.4.2
Oxygen Removal.....................................120
8.5
Boiler Feed Pumps..................................120
8.6
Pressure Reducing and Desuperheating Stations......120
8.6.1
Pressure Reducing Stations.........................120
8.6.2
Desuperheating Stations............................122
8.7
Compressed Air System..............................122
8.7.1
Applications.......................................122
8.7.2
Equipment Description, Design, and Arrangement.....122
8.8
Auxiliary Cooling Water System.....................122
9.1
Unloading Systems..................................125
9.1.1
Barge..............................................125
9.1.1.1
River Barge Unloader...............................125
9.1.1.2
Ocean Barge Unloader...............................125
9.2
Coal Crushing......................................127
9.3
Coal Storage.......................................127
Page
9.4
Coal Reclaiming....................................127
9.5
Plant Bunker or Silo Storage.......................127
9.6
Bunker or Silo Filling Systems.....................128
9.7
Coal Scales........................................128
9.8
Magnetic Separators................................128
9.9
Coal Sampling......................................128
10.1
Ash Handling Systems...............................130
10.1.1
Pneumatic..........................................130
10.1.1.1
Vacuum System......................................130
10.1.1.2
Pressure System....................................131
10.1.1.3
Vacuum-Pressure System.............................131
10.1.2
Hydraulic..........................................131
10.1.3
Dense Phase........................................131
10.2
Bottom Ash Hoppers.................................132
10.2.1
Stoker Firing......................................132
10.2.2
Pulverized Coal Firing.............................132
10.3
Clinker Crushers...................................132
Page
10.3.1
Stoker Coal Firing.................................132
10.3.2
Pulverized Coal Firing.............................132
10.4
Ash Storage........................................132
11.1
Types of Controls and Control Systems..............133
11.1.1
Analog.............................................133
11.1.2
Microprocessor Based Control Stations..............133
11.1.3
Computer - Direct Digital Control (DDC)
or Supervisory Control (SC)......................133
11.1.4
Pneumatic Control Systems..........................133
11.1.5
Types of Control Systems Available.................133
11.1.6
Maintenance and Calibration........................134
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