UFC 3-240-13FN
25 May 2005
3-2.7.3.5
Cyclohexylamine........................................................................
61
3-2.7.3.6
Amine Blends.............................................................................
61
3-2.7.4
Control of Carbon Dioxide and Oxygen by Filming Amines.......
61
3-2.7.5
Control of Carbon Dioxide and Oxygen by Specialty
Volatile Amines ..........................................................................
62
3-2.7.6
Amine Limitations and Indoor Air and Steam Quality Issues .....
62
3-2.7.6.1
Steam Used for Sterilization ......................................................
62
3-2.7.6.2
Food Preparation .......................................................................
63
3-2.7.6.3
Humidification ............................................................................
63
3-2.8
Water Carryover in Steam .........................................................
63
3-2.8.1
Mist Carryover ...........................................................................
63
3-2.8.2
Foaming Carryover ....................................................................
64
3-2.8.3
Priming Carryover ......................................................................
64
3-2.8.4
Silica Carryover .........................................................................
64
3-2.8.5
Determining Water Carryover in Steam .....................................
65
3-2.8.5.1
Conductivity Measurement Implications ....................................
65
3-2.8.5.2
Deposit Analysis ........................................................................
65
3-3
DEVELOPING A STEAM BOILER SYSTEM WATER
TREATMENT PROGRAM..............................................................
65
3-3.1
Organizing a Treatment Program ..............................................
66
3-3.2
Operator Training.......................................................................
66
3-3.2.1
Pretreatment Training ................................................................
66
3-3.2.2
Treatment Training ....................................................................
66
3-3.2.2.1
Boiler Water Treatment..............................................................
66
3-3.2.2.2
Cooling Systems Treatment ......................................................
67
3-3.2.2.3
Blowdown ..................................................................................
67
3-3.2.3
Program Content .......................................................................
68
3-3.3
Equipment and Procedures .......................................................
68
3-3.4
Feedwater Quality Limits ...........................................................
68
3-3.5
Boiler Water Chemistry Limits ...................................................
72
3-3.6
Shore-to-Ship Steam Quality .....................................................
75
3-3.7
Treatment Guidelines for Low-Pressure Steam.........................
76
3-3.8
Treatment Guidelines for Medium- and High-Pressure Steam ..
77
3-3.9
Condensate Corrosion and Control ...........................................
78
3-3.10
Treatment Guidelines for Very-High-Pressure Steam ...............
78
3-3.11
Boiler Operator Duties ...............................................................
79
3-4
CHEMICAL REQUIREMENTS FOR BOILER START-UP ...................
79
3-4.1
Common Problems During Start-up of New Boilers...................
79
3-4.2
Start-up of New Boilers and Condensate Systems
or Repaired Boilers ....................................................................
79
3-4.2.1
Start-up of Boiler from Wet Layup .............................................
81
3-4.2.2
Start-up of Boiler from Dry Layup ..............................................
81
3-5
CHEMICAL REQUIREMENTS FOR BOILER LAYUP.........................
82
3-5.1
Operational Considerations .......................................................
82
3-5.2
Common Problems that Occur During Layup ............................
82
3-5.3
Dry Layup of Boilers ..................................................................
82
3-5.3.1
Open Dry Layup Method............................................................
82
3-5.3.2
Quicklime or Silica Gel Layup Method.......................................
83
3-5.4
Wet Layup of Boilers..................................................................
83
3-5.4.1
Wet Layup Without Draining (Operational Boilers) ....................
83
3-5.4.2
Wet Layup of Drained Boilers ....................................................
84
3-5.5
Layup of Condensate Systems ..................................................
85
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