Industrial Flame Monitoring - CICSAcicsa-maxon.com.mx/media/Industrial-Flame-Monitoring.pdf ·...
Transcript of Industrial Flame Monitoring - CICSAcicsa-maxon.com.mx/media/Industrial-Flame-Monitoring.pdf ·...
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Industrial Flame Monitoring Fuel Fired Process Safety Monitoring
LAR TRAINING
MAY 2015
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How is IFM Used (Not Just as a Flame Switch!)
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Typical Process Application for IFM
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Functional Safety Application
SIF: A Safety Instrumented Function (SIF) is a safety function with a specified Safety Integrity Level (SIL) which is implemented by a SIS in order to achieve or
maintain a safe state.
Relation Between SIS, SIF, SIL
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Used in Voting Architecture Applications
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IFM Portfolio
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Where Used?
•Industries:
Pretoleum/Refineries
Petrochemical
Pulp and paper
Metals Processing
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Process Applications
•Typical applications:
Industrialsprocess boilers
Black liquorrecovery
Co-generationboilers
Grate firedboilers
Cement or lime klins
Claus reactors(sulfur recovery)
Thermal oxidizers Gas turbines
Flare stacks
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Viewing Head and Signal Processor CombinationsViewing Head and Signal Processor Combinations
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Typical Flame Envelope
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Light Spectrum (What is Visible?)
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Viewing Head Sensors
•Infrared (IR) - Solid state sensor
•Ultraviolet (UV) – UVTron tuve
•Flare Stack model (UV) – UVTron tuve
•Dual IR/UV – Solid state + UVTron tuve
•Integrated IR/UV VH/SP – 2 Solid state + UVTron tube
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•Viewing Head Sensors Infrared (IR) - Solid state sensoro Peak response at 1,400nm in the light spectrum
Responds to IR radiation/flicker in the flame above (selectable):o 9Hz (U2)
o 16Hz (S55XB, S55XBE)
o 33Hz/155Hz (S70X/S80X)
Outout = Pulse stream of randomly spaced pulses whose averagerate is proporcional to the IR radiation/flicker frequency present in the flame
Think of: AC Voltage with a DC component
Sensors (Continued)
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•Viewing Head SensorsUltraviolet (UV) – UVTron tuveo Peak response at 210nm in the light spectrum
Outout = Pulse stream of randomly spaced pulses whose averagerate is proporcional to the UV radiation present in the flame
Think of: DC Voltage
Sensors (Continued)
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•Infrared (IR) - Solid state sensor IR Solid state sensoro Longer wavelenght discrimination
Measure flame strenght flickero Amplitude + modulations of the flame in the target zone
o High IR levels that are not characteristic of the flame are ignored
o 33Hz/155Hz (S70X/S80X)
Programmed + monitored via signal processor
Sensors (Continued)
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•Ultraviolet (UV) – UVTron tuveUV Tube sensor o Very short wavelenght discrimination
Measure UV portion generated by the flameo Amplitude + random UV Tube pulses/firings in the target zone
Programmed + monitored via signal processor
Sensors (Continued)
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•Dual IR/UV Viewing Heads Independent configuration for each sensor
Programmed + monitored via signal processor
Sensors (Continued)
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•Integrated IR and/or UV Viewing & Signal ProcessorFeatureso 24 Vdc input
o Touchscreen interface with scrolling menú structure
o 100% programable through interface
o 8 Files/flame profiles
o Hazardous location approvals
Sensors (Continued)
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Sensors (Continued)
•Integrated IR/UV Viewing Head & Signal Processor
•The U2 has a unique touchscreen interface• Circular scroll finger “touch Wheel” menú structure (similar to the IPod
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Sensors (Continued)
WATCHDOG III FLARE STACK MONITOR
IRIS MODELS P222 and S256B UV
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Select Signal Processors
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Flame Discrimination Adjustments
•Viewing Head HighlightsAdjustable FLAME ON and FLAME OFF settingso The “pull-in” and “drop-put” thresholds of the flame relay.
Adjustable UV and IR GAIN settingso Increase/decrease flame signal for flame discrimination + recognition
Multiple SOLID STATE high pass flicker frequency settingso Adjust filter based on the flicker frequency on the flame
o Provides good discrimination between flames and background
o Ingnore everything below
UV flare stack application specif model
Integrated IR/UV scanner and processor model
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Example Processor Set-up Considerations
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Example Processor Set-up Considerations
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Example Processor Set-up Considerations
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Scenerios that can be monitored
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Viewing head mounting examples
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Accessories
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Get a Better View with Fiber Optics
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Fiber Optic Considerations
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Fiber Optic Assembly
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GHE Series Ignitors
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GHE Series Ignitors
•Specifications: 1-7/8 (4.763) diameter/1-3 MMBTU/hr (~1-3 GJ/hr)
2-7/8 (7.303) diameter/2-10 MMBTU/hr (~2-10 GJ/hr)
• Components Burner mounting tube with flange, gas insert & gas/air flex hoses
Inner probe assembly with probe, igniter tip & junction box
Power pack (2,000Vdc, 12Joules)
Cable with canon plug
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GHE General Dimensions