Central Boiler PlantsHeadquarters, Department of the Army, 1989 - Boilers |
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Common terms and phrases
acid adjustment air flow air heater alkalinity automatic blowdown boiler efficiency boiler water burner burning calcium carbon dioxide caustic caustic soda central boiler plants Centrifugal pumps Check check valve chemical clean coal combustion combustion air combustion control condensate control valve corrosion dampers deaerator discharge drum ensure equipment external treatment feed feedwater feedwater heater FIGURE fire tube boilers flame flue gas fly ash fuel bed fuel oil fuel/air ratio furnace gage glass gases grate heat transfer hopper hot water hydrogen zeolite ignition inches inlet Inspect installed Item leakage leaks load lubrication maintain maintenance manual mechanical meter outlet oxygen particles percent phosphate piping plug pressure gage procedures proper psig reduce Reference paragraph regulations remove safety valves sample sludge sodium sulfite sodium zeolite softening sootblowers stack steam boilers steam pressure steam traps suction sulfur superheater supply tank tannin vent water level water treatment zeolite
Popular passages
Page 3-9 - The safety valve capacity of each boiler shall be such that the safety valve or valves will discharge all the steam that can be generated by the boiler without allowing the pressure to rise more than 6 per cent above the maximum allowable working pressure, or more than 6 per cent above the highest pressure to which any valve is set.
Page 14 - HEAT RELEASE The total quantity of thermal energy above a fixed datum introduced into a furnace by the fuel, considered to be the product of the hourly fuel rate and its high heat value, expressed in Btu per hour per cubic foot of furnace volume or square foot of heating surface.
Page 14 - Grade No. 6. sometimes referred to as "Bunker C," is a high-viscosity oil used mostly in commercial and industrial heating. It requires preheating in the storage tank to permit pumping, and additional preheating at the burner to permit atomizing. The extra equipment and maintenance required to handle this fuel usually preclude its use in small installations.
Page 2 - ASPIRATING BURNER - A burner in which the fuel in a gaseous or finely divided form is burned in suspension, the air for combustion being supplied by bringing...
Page 1 - The American Society of Mechanical Engineers (ASME) United Engineering Center, 345 East 47th Street, New York, NY 10017.
Page 15 - HEATING VALUE The total heat obtained from the combustion of a specified amount of fuel which is at 60F when combustion starts, and the combustion products of which are cooled to 60F before the quantity of heat released is measured (See also Calorific Value and Low Heat Value).
Page 19 - ... mud or lower drum A pressure chamber of a drum or header type located at the lower extremity of a water-tube boiler convection bank which is normally provided with a blowoff valve for periodic blowing off of sediment collecting in the bottom of the drum.
Page 9 - ... parts. When applicable, static head shall be included in the design pressure to determine the thickness of any specific part. Determine...
Page 15 - In boiler practice, the heat available in the furnace is usually taken to be the higher heating value of the fuel corrected by subtracting radiation losses, unburned combustible, latent heat of the water in the fuel or...
Page 9 - Louvre type. A damper consisting of several blades, each pivoted about its center and linked together for simultaneous operation.