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Industrial Boiler Terms
– A test that measures the relieving capacity of boiler safety relief
valves.
– The air that surrounds
the equipment.
– A burner
in which the fuel, in either a gaseous or finely divided form, is burned
in suspension. The air for combustion is supplied by bringing it into
contact with the fuel as it is drawn through one or more openings by the
lower static pressure created by the velocity of the fuel stream.
– The removal
of a boiler from service for a length of time. A boiler may be laid-up
dry or wet.
– Pressure of
the steam of water in a boiler, generally expressed in pounds per square
inch (psi) and corresponding temperature.
– A valved port
used to vent air from a full boiler and to prevent a vacuum from forming
when the boiler is drained. Boiler vent openings are located on the highest
part of the waterside of the boiler.
– The draining
of a portion of the water in the boiler in order to remove the heavy sludge
that tends to settle at the bottom. This process is done periodically.
–
Amount of heat needed to raise or lower the temperature of one pound of
water by one degree Fahrenheit under standard pressure.
– A pipeline that
passes around a control in order to allow the boiler to be operated manually
without having to use the control.
– A small,
continuously draining stream of water that controls the quantities of
impurities in a boiler.
– A pressure
control setting at which the boiler automatically turns on.
– Connections between
parts of a boiler to equalize pressures.
– A door in a
furnace or boiler setting that is designed to be opened by a pre-determined
gas pressure.
– The lowest temperature
at which, under specified conditions, fuel oil gives off enough vapor
to flash into a momentary flame when ignited.
– An enclosed space
of a boiler in which the fuel undergoes combustion.
– A flame which is utilized
to ignite the fuel at the main burner or burners.
– A vertical conduit that,
due to the difference in density between internal and external gases,
creates a draft at its base.
– The vapor phase of water,
unmixed with other gases.
– The change from
liquid or solid phase to the vapor phase.
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