ONLINE HOT
CAMERA
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Design of the camera unit is based around external influences such as: v Electro-static discharge
from modern precipitation units v Operating temperatures
ranging from ambient to 700oC v Turbulence from fan induced
gas flow v Saturation from FGD
scrubbers v Aggressive flue gas agents v
Suspended particulate within the flue gas
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Within the box, an array of 4 digital video cameras
capture images covering the entire horizontal plain. In addition to this, a 5th camera is located within
the base of the camera box which detects radial and profile deformations
within the lining cylinders. Operation of the camera is based around a fully
demountable davit which is anchored to the external fabric of the chimney
summit, allowing the camera to be winched up and down the chimney interior
and exterior.
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Prior to the introduction of STACK-CONS’ unique
video monitoring system, first generation hot-camera systems largely
comprised of still photography taken at 10m intervals throughout the height
of the chimney. The results were inconclusive due to large areas of the
lining fabric being unobserved.
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The
monitoring system consists of a self contained insulted unit which accommodates its own power supply, lighting, cameras, duplex units and thermometers. |