Apparatus having inductively coupled coaxial coils for measuring buildup of slay or ash in a furnace
- Pittsburgh, PA
- Bethel Park, PA
The buildup of slag or ash on the interior surface of a furnace wall is monitored by disposing two coils to form a transformer which is secured adjacent to the inside surface of the furnace wall. The inductive coupling between the two coils of the transformer is affected by the presence of oxides of iron in the slag or ash which is adjacent to the transformer, and the application of a voltage to one winding produces a voltage at the other winding that is related to the thickness of the slag or ash buildup on the inside surface of the furnace wall. The output of the other winding is an electrical signal which can be used to control an alarm or the like or provide an indication of the thickness of the slag or ash buildup at a remote location.
- Research Organization:
- USDOE Pittsburgh Energy Technology Center (PETC), PA (United States)
- Assignee:
- United States Department of Energy (Washington, DC)
- Patent Number(s):
- US 4829246
- OSTI ID:
- 866959
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
inductively
coupled
coaxial
coils
measuring
buildup
slay
ash
furnace
slag
interior
surface
wall
monitored
disposing
form
transformer
secured
adjacent
inside
inductive
coupling
affected
presence
oxides
iron
application
voltage
winding
produces
related
thickness
output
electrical
signal
control
alarm
provide
indication
remote
location
inductively coupled
inside surface
electrical signal
interior surface
remote location
inductive coupling
furnace wall
coaxial coil
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