| 摘要 |
A burner assembly is provided for combining oxygen and fuel to produce a flame. The burner assembly includes a burner block including a combustion chamber and a nozzle discharging an oxygen and fuel mixture into a first stage region formed in the combustion chamber. First stage oxygen is supplied to the first stage region in the combustion chamber to combine with the oxygen and fuel mixture discharged into the first stage region by the nozzle. Second stage oxygen is also delivered to a downstream second stage region in the combustion chamber in sequence through an oxygen delivery tube, a flow regulator plate, and then an oxygen-conducting passage formed in the burner block. The flow regulator plate has a fixed-diameter oxygen-flow orifice having an internal diameter that is less than the internal diameter of the oxygen delivery tube to meter the flow of second stage oxygen discharged into the second stage region so as to apportion oxygen flow between the first and second stage regions.
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