07-07-2016 дата публикации
Номер: US20160194232A1
Submerged combustion burners having a burner body and a burner tip connected thereto. The burner body has an external conduit and first and second internal conduits substantially concentric therewith, forming first and second annuli for passing a cooling fluid therethrough. A burner tip body is connected to the burner body at ends of the external and second internal conduits. The burner tip includes a generally central flow passage for a combustible mixture, the flow passage defined by an inner wall of the burner tip. The burner tip further has an outer wall and a crown connecting the inner and outer walls. The inner and outer walls, and the crown are comprised of same or different materials having greater corrosion and/or fatigue resistance than at least the external burner conduit. 1. A fluid-cooled combustion burner comprising:{'b': 6', '10', '12', '10', '10', '12', '10', '12', '11', '14', '12', '14', '13', '12', '14, 'a burner body () comprising an external conduit () and a first internal conduit () substantially concentric therewith, and positioned internal of the external conduit (), the external conduit () comprising a first end, a second end, and a longitudinal bore having a longitudinal axis, the first internal conduit () comprising a first end, a second end, and a longitudinal bore having a longitudinal axis, the external conduit () and first internal conduit () forming a first annulus () for passing a cooling fluid there between, and a second internal conduit () substantially concentric with, and positioned internal of the first internal conduit (), the second internal conduit () comprising a first end, a second end, and a longitudinal bore having a longitudinal axis, and configured to form a second annulus () between the first and second internal conduits (, ), the burner body comprising fuel and oxidant inlet ports near the second ends of the conduits; and'}{'b': 4', '28', '30', '32', '30', '10', '28', '14', '4', '28', '4', '10, 'a formed, one-piece, ...
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