As a result of many observations of multiple-burner, oil and gas firing equipment, on a wide range of boiler designs, it has been concluded that the proper airflow distribution to each burner is essential in order to control fame shape, fame length, excess air level, and overall combustion efficiency. Proper airflow distribution consists of equal combustion airflow between burners, uniform peripheral velocity distributions at the burner inlets, and the elimination of tangential velocities within each burner. If the unit has been designed with wind box FGR, the O2 content must be equal between the burners, and this is accomplished by balancing the FGR distribution to each burner.
Flame monitoring plays a crucial role when it comes to reliability and safety.
Determination of the best method of flame monitoring takes into account not only the burner and the fuel to be combusted, but also how the system operates and the conditions inside the combustion chamber.
Heat generators with one flame per combustion chamber are easier to monitor than those with multiple flames. In the latter case, it also depends whether the flames are firing into the combustion chamber from the same or opposing directions.
Biomass plant and waste incinerators need a flame monitoring system that is not affected by extraneous flames.
Dual Block series are for plant with multiple burners firing from different directions into a single combustion chamber, and for process plant with various flame sources. The flame scanners monitor each flame separately via up to ten load-dependent switching thresholds for each
The compact flame scanner is composed of a cylindrical casing comprising an axial light incidence aperture, a processing status indicator at the rear of the unit and operational controls which can be accessed by removing the cover.
The device is connected through an integrated standard plug and using a connection cable required for this with coupler.
The most powerful ignitors are based on high energy systems developed over decades of experience in applications requiring safe and reliable operation, such as power generation plants and steam generating utilities.
The High Energy ignition systems ensure a number of robust intermittent sparks realized by the energy accumulated by a capacitor, providing more powerful ignition capacity than high tension arc electrodes. The Ignitors includes gas electric ignitors, light oil electric ignitors, without or with premixed air, suitable for continuous operation, as well as the direct spark ignitor for light up of heavy oil.
Usually, the igniters are an integral part of the supply of burners or combustion systems.