Fireye

Effective flame monitoring with the Fireye devises - maximum reliability at minimum cost

Effective flame monitoring and control of burning process by equipment designed Fireye - maximum reliability at minimum cost.

         Permanent flame monitoring and control of burners is crucial for fire safety in petroleum, gas, chemical, heat production industries. A key role in the detection of the flame of the flare systems and burners is given to sensors and scanners that converts the optical radiation in the electric signal. In this article you will learn how to reduce the effects of interference and increase the information content of the monitoring data with the help of innovative detectors from the company Fireye.

Flame detector - a device and principle of operation

         Applied at the enterprises where the reliable flame stability is vitally important (oil and gas, chemical industry, power and heat production), flame monitors are automatic equipment, which configured from at least two parts: the flame sensor and the sensor control unit.
Depending on the technology, the flame sensor transforms light or heat radiation into the electromagnetic impulse. The control unit transforms the received signal to a notification of the presence or absence of inflammation in controlled burner. In addition, flame monitors can also transmit information about equipment condition in binary control signals to manage the combustion process.

         Currently, the most common flame monitors use optical sensors which can register ultraviolet and infrared radiation spectrum. Photodetector responds to ultraviolet radiation of the absolute spectrum, whereas semiconductor flame sensor controls the difference in frequency of the controlled flame flicker compared with the background. Since flickering UV radiation flame during combustion detects specific frequency characteristics, the deviations can be monitored by the flame amplitude signals emanating from UV radiation within the combustion chamber and the surrounding background IR radiation which is not accompanied by flickering effect.

Photodetectors and semiconductors - operational features

         According to GOST 21204-97 (industrial burners), the flame sensor for the gas burner must have a high selectivity. It is expected that the sensor will respond only to light-controlled unit, ignoring the third-party sources of heat and light - radiating walls, heated lining, lighting, ignitors and other burners, etc. The selectivity of the IR and UV sensors are much higher than the visible light sensors, thermocouples and pyrometers, however, in practice a flame monitoring still suffers from interference provoked by external factors.

         During the signal data processing the semiconductor detector generate internal noise, distorting the observation data. Photodetectors are free from such noise, however, they are sensitive to electric discharges and external sources of UV radiation.

         The source of noise can also be side products of combustion. Steam and oil films absorb short-wavelength rays; smoke and soot impair visibility. Contamination of the lenses of dust and soot impedes the flame monitoring in vertical burners. In some cases, the flame sensor is sensitive to temperature variations, erroneously identifying the heat from the lining as the low-frequency radiation. The use of dark glasses display smoothes air curtain effect.

         To improve the efficiency of the flame monitoring is recommended to correct configuration and pre-testing of sensors, as well as the to correct the sensitivity to the background parameters and the observed range of radiation (sensor learning).

Fire moniting systems from Fireye - advanced functionality and new features

         The American company Fireye finds effective ways to overcome the above mentioned limitations and implements it in the design of sensors "Insight", the "Simplicity" and "Phoenix".

Despite the budgetary cost of the UV the Simplicity sensors are reliable and easy to use and does not require any programming or to set up.

         Standard Insight I, sensors of average cost, in the lead in the sales rankings, showing the functionality with a minimum of installation and operating costs. The integrated design eliminates the need for retrofitting the device with signal amplifier, the mounting plate and internal connections.

         Highly sensitive sensors Insight II, controlled with a remote IR control and/or central control desk, the sensors can have UV and IR detectors at the same time, can be use in remote areas of the furnace and the in the areas of high explosion risk. Fiber elements reduc the appliance's susceptibility to temperature, increasing the selectivity of the monitoring. With two independent flame sensors the Insight II can operate in a "two in one", which allows simultaneous observation of burning two fuels, or for the main burner and igniter on multi-burner installation and set different modes of monitoring the cobustion process at full or semi- furnace load .

         Phoenix semiconductor sensors are particularly suitable for vertical burner, since removal of the lens behind the lining of the furnace eliminates the deposition of dirt and grime on it. Fluctuations are compensated by improved flame Low Nox algorithm

Where to buy Fireye flame monitors in Russia

"Arsenal Group" acts as the official distributor of certified oil and gas Fireye equipment in Russia. Cooperation with us provides not only technical, but also organizational advantages:

    •    implementation of projects of any complexity;

    •    efficiency and mobility

    •    thorough compliance with the agreed deadlines and budget;

    •    cost optimization;

    •    professional advice on the selection, configuration, operation and maintenance of the flame sensors and other equipment.

The Fireye lineup equipment includes:

    •    Automated control systems

    •    Ignition Systems

    •    Scanners

    •    Detectors

    •    Temperature sensors

    •    UV flame detectors

    •    IR flame detectors

    •    Combined monitoring systems.