Starting a gass burner using an ignitor?
Starting a gass burner using an ignitor?
(OP)
I'm trying to design a circut to start a gas burner by using an solid state ignitor like the ones used in BBQ grills or gas stove tops. I've found some ICs made by STM designed for fire ignition circuits. The question that I have is once the fire has been started how can you detect it so that you disable the ignition circuit? I've noticed on some gas stove top no additional sensors are used other than the ignitor itself.





RE: Starting a gass burner using an ignitor?
George Griggs
Sr Process Controls Engineer
RE: Starting a gass burner using an ignitor?
Not sure of its specific electrical characteristic, but in US’ consumer-grade natural-gas-fired equipment for the last couple of decades, it appears that something is sensed by nothing other than across the ignitor spark gap.
RE: Starting a gass burner using an ignitor?
As a side note, all burning hydro-carbons emit UV when adequate oxygen is present. That is why oxy-gas welders wear goggles.
RE: Starting a gass burner using an ignitor?
One electrode sat into the flame area, sometimes you'd need to "ground" the base of the flame to ensure conductivity. A solid-state relay was switched on when current passed through the ionised flame.
RE: Starting a gass burner using an ignitor?
I do not believe there was any flame detection on gas stoves since there is limited amount of fuel coming through the pilot valve.
My experience is with diesel fired burners and propane.
RE: Starting a gass burner using an ignitor?
RE: Starting a gass burner using an ignitor?
Thread237-31888
http://www.epinions.com/content_61891055236
http://www.tssa.org/fuels/pdf/october_2001_gas.pdf
(for safety)
http://www.southbendnc.com/manuals/combi.pdf
(for Combi)
etc. for more info