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Flame Detector - One of the Cheapest Devices to Fight Fire
A flame detector is a fire protection device, which detects the flame
in the place where it is fixed and issues an alarm thereby alerting
nearby people to the danger of fire.
In most of the manufacturing
companies, furnace flame detector is used in order to detect and prevent
fire. Flame detector responds either to radiant energy visible to
the human eye or outside the range of human vision. Most flame detectors
work either by optical flame detector or flame ionization detector
but some of them use combination of both detectors.
Flame detector works at specific ranges, which uses optical sensors
to record the incoming radiation at a particular wavelength. The
energy radiated from the flame is electromagnetic radiation and
it can be identified at various spectral ranges like UV, IR and
VIS. Depending upon the sensor used there are number of flame detectors
available they are infra red flame detectors, ultra violet flame
detector, UV/IR, IR/IR and tripe IR spectral band detector. Flame
detector has a cone of vision that defines the effective capability
of sensing fire. It is inefficient for slow fires however it responds
faster for rapidly developing fire like combustible gas and liquid.
It is available in different shape and size.
Uses of Flame Detector
Flame detectors are the most powerful equipment in fighting of fire
due to their ability to detect small fire from a long distance. Fire
alarm flame detector gives a signal to people to safeguard themselves
against fire. Flame detector is used for the purpose of reacting to
the light spectrum flames, either infrared or ultraviolet, or both.
Used only in high hazard area such as fuel loading platforms, industrial
process area, hyperbaric chamber, and high ceiling areas or in atmosphere
where explosions or rapid fires may occur.
Flame ionization detector is used for organic analysis and it is
specific for hydrocarbon and mostly used in petroleum product. The
wide applications of flame detectors are storage farms, refineries
and pipeline, loading station, floating production storage, process
plant, Military, control rooms, Naval system, semi conductor industries,
chemical and petroleum products, power utilities and pharmaceuticals.
Types of Flame Detector
The different types of flame detector depending upon the method of
detection and types of power used. The major classification of flame
detector is UV flame detectors, IR flame detectors, UV/IR flame detectors,
IR/IR, IR^3 and triple IR spectral band detector. How do UV/IR flame
detectors work? It works with line of sight devices that look for
UV/IR rays emitted by flame during combustion and sends a signal to
activate the alarm.
UV Flame Detector
UV flame detector is applied to wavelength shorter than 300 nm. It
is faster and detects fires emitting light in the UV areas of spectrum.
It is accurate but subjected to interference from UV sources like
Sun, welding, lightning and solar radiation. Flame detector tester
is available to help the user in safely testing the flame detector
and it should be selected in such, it should match the UV flame detector.
UV flame detector is used in explosive and hazardous atmosphere. In
most furnaces, furnace flame detector is used with UV flame detector
to detect the flame.
