Burner with ignition device

Claim 1

An ignition burner for use in start-up operations comprising: a cylindrical housing; a tubular element, having one end open for defining a flame port and disposed concentrically within said housing; an annular front wall, said annular front wall extending from the cylindrical housing to the tubular element, said annular front wall in addition having an outlet means for oxygen-containing gas and fuel; conduit means, said conduit means being disposed in the space between the housing and tubular element to separately supply fuel and oxygen-containing gas to said outlet means in the annular front wall; an elongated electrode disposed concentrically in said tubular element and having an uninsulated end adjacent said flame port; means communicating with the annular space between said electrode and tubular member for supplying a combustible gas mixture to said annular space; a baffle assembly disposed in said annular space adjacent the uninsulated end of the electrode, said baffle assembly having a first passage means for supplying a low velocity flow of said combustible gas mixture to the uninsulated end of said electrode, and a second passage means for supplying a high velocity flow of said combustible gas mixture to the uninsulated end of the electrode; and flame detector means disposed in said tubular member for detecting a flame present in said outlet means.