Flame Detector
Flame detector or flame monitoring systems are used to detect flame inside combustion chambers, boilers, and furnaces. One of the prevalent dangers in chemical and refining industries is explosion and fire. Mixture of liquid discharges and flammable gases with oxygen in the air will burn. Delay in detecting the dying flame can lead to disastrous consequences like explosion of the chamber, bringing about high financial damages. Therefore flame scanner performance is highly important.
Flame detector and its different types of performance
Flame detector can trigger an alarm at the time of fire so that related safety process to flammable materials would be increased. Some of flame sensors try to protect peoples’ safety more through turning ignition system off or activating fire fighting system. One of the detection methods of flame is using optical sensors. Optical sensors receive light and produce electrical signals. The more would be intensity of light; the bigger would become output signal range from the sensor.
Considering the aforementioned, it can be concluded that using this type of sensors helps flame detection from far distance. The biggest problem in using optical sensors to detect flame is disruptions resulted from background light as well as behavioral changes of sensor with temperature changes. To prevent such disruptions, best method of flame detection is measurement of instant and frequent changes of flame. All industrial flame detection systems are required to use this method.
Also, using self-care systems to assure correct performance of these types of systems is a must. Sepanta Electronic Tabarestan Co. is honorable as the first knowledge-based company in Iran to present flame sensors for industrial usage with the above mentioned characteristics.
Applications of Flame Scanner
- Power stations
- Chemical industries
- Refineries
- Cement factories
- Steam generators
- Waste incinerators
- Heating system for plants
SAx -101
Compact Flame Scanner for all industrial burners
Features of SAx-101 Flame Detector
- Compact design, flame sensor and flame analyzer unit in one enclosure
- Wide Spectral Response Range from UV though IR
- Wide sensitivity range
- Ambient temperature from -20°c up to +70°c
- Ability to switch-over for the set parameters of scanner.
- IrDA/USB interface
SUT-100
UV Flame Scanner Spectral Range 190 to 300 nM
Features of SUT-100 Flame Detector
- UV sensitivity Range
- Ambient temperature from -20°c up to +125°c
(up to 185°c with cooling case) - Fast response time
- Water or air cooling is optionaly available
SAx-100
Solid State Flame Sensor, Wide spectral response range from UV through IR(230nm..1100nm)
Features of SAx-100 Compact Flame Detector
- Compact design, flame sensor and flame analyzer unit
- Wide sensitivity range
- Ambient temperature from 20°c up to +85°c
- Dual channel design throughout
- Measurement of flame intensity
- Measurement of flame flicker frequency
- Measurement of flame brightness
SAx-200
Compact Flame Detector for all industrial burners Ultra-Violet and Infra-Red radiation technology
Facilities provided by SAx-200 Compact Flame Detector
- Integrated flame sensor and analyzer unit design
- Response range of ultra violate to infrared
- Sensitivity range of ambient temperature from -20°c to +70°c
- Designing dual channel to measure flame intensity
- Measurement of flame intensity
- Measurement of flame light frequency.
AGD01-TIx
Solid State Flame Sensor, Wide spectral response range from UV through IR
Features of AGD01-Tlx Flame Detector
- Wide sensitivity range for ambient temperature from -20°c up to +85°c
- Dual channel design throughout
- Measurement of flame flicker frequency;
- Measurement of flame brightness
- Measurement of flame intensity.
AGD01-DU
Digital Flame Detector Solid State Flame Sensor, With High UV Spectrum Sensitivity
Features of AGD01-DU Flame Detector
- Wide sensitivity range in ambient temperature from -20°c to +85°c
- Capability of adjustment to various combustion chambers
- Measurement of flame ray frequency
- Measurement of flame light
- Measurement of flame intensity
AGD01-CW OE Converter
Solid State Flame Scanner, Wide spectral response range from UV through IR (230 nm…1100 nm)
Features of AGD01-CW OE Converter
- Wide sensitivity range for ambient temperature from -20°c up to +85°c
- Measurement of flame flicker frequency;
- Measurement of flame density
- Measurement of flame intensity.
AGD01-CX4
Fiber Optic Technology
Features of AGD01-CX4 with Fiber Optic Technology
- High Temperature Resistance Up to 300°c
- Up to 500 °c with Cooling Air
- Suitable for connection point with strong vibration
- Increased Life spon
- Better access to sensor part
- Measurement of flame flicker
SAx200- CX4
Fiber Optic Technology
Features of Fiber Optic Technology
- High Temperature Resistance Up to 300°c
- Up to 500 °c with Cooling Air
- Compact design, flame sensor and flame analyzer unit in one enclosure
- Wide spectral Response Range from UV through IR
- Wide sensitivity range
AGD01-TIy
Two Color Flame Sensor, Wide Spectral Response Range from UV through IR (200nm … 2700nm)
Features of AGD01-TIy Flame Detector
- Wide range sensitivity limit under ambient temperature -20°c to+85°c
- Designing dual external channel
- Measurement of flame flickering frequency
- Measurement of flame flickering
Subrack
Types of subrack installation
- Type 1: 19″ -built-in rack DIN 41494 For AGD01-TIx
- Type 2: 19″ -built-on rack DIN 41494 For cabinet or wall mounting
- Type 3: 19″ -built-on rack DIN 41494 For AGD01-TIy
- Type 4: 19″ -built-in rack DIN 41494 For AGD01-DU
More About Flame scanners:
Flame scanners are installed on Heaters or Boilers for monitoring Burning. Flame Rod and Flame Scanner both used for Flame Detection. But Flame Rod used on Pilots and Flame Scanner are installed on main Burner for monitoring main Burning in furnaces. Flame Detection is very important in every industry. Flame has certain characteristics that we are use for detecting device, coupled with a suitable flame control mechanism produces a signal.
a) Heat Production
b) Expansion of gases
c) Production of by-product of combustion
d) Emission of light (IR or UV)
e) Ionization around the flame
In Refineries there are three types of Devices that are used for monitorings Combustion in Heater furnances.
a) Oxygen Analyser
b) Flame Rod
c) Flame Scanner
Flame Scanner is a Digital device that are used for Monitoring Combustion system.
There are two type of Flame Scanner:
a) IR
b) UV
In Refineries the Flame Scanner used on Main Burners.
Working Principle of flame scanners:
UV Flame Scanners Sense Ultraviolet Radiation that are produced by Flame. The wave length of ultraviolet Radiation is less than 300 nm. A photo–tube are used in UV detector. The photo–tube is sensitive for Light. UV Radiation hit Photocathode and electrons Release that move towad Anode. And output signal is Generated in Form of Pulse and sent to Detector.