Nozzle for feeding combustion providing medium into a furnace
First Claim
1. A nozzle for feeding a combustion maintaining medium into a furnace at high temperature conditions, said nozzle comprising:
- a tiltable nozzle tip, at least partly protruding into the furnace; and
feeding means for feeding the combustion maintaining medium from a source of the medium to said tiltable nozzle tip, said tiltable nozzle tip including;
(i) a mainly open-ended outer shell, including a first end wall portion in flow connection with said feeding means and a second end wall portion protruding into the furnace, said second end wall portion having an interior side and an exterior side;
(ii) an air cooling zone formed on the interior side of at least a portion of said second end wall portion of said outer shell, and providing an air flow along the interior side;
(iii) a shroud being disposed on said tiltable nozzle tip, said shroud including a shroud wall portion disposed to cover at least a portion of the first end wall portion of said outer shell; and
(iv) an air shroud channel, formed between said shroud wall portion of said shroud and the first end wall portion of said outer shell, for discharging from said air shroud channel an air shroud flow which is guided along the exterior side of the second end wall portion of said outer shell.
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Accused Products
Abstract
A nozzle for feeding combustion maintaining medium into a furnace at high temperature conditions includes a nozzle tip, at least partly protruding into the furnace, and a feeding mechanism for feeding the combustion medium from a source of the medium to the nozzle tip. The nozzle tip includes a mainly open ended outer shell, an air cooling zone, a shroud, and an air channel. The outer shell includes a first end wall portion in flow connection with the feeding mechanism and a second end wall portion protruding into the furnace. The cooling zone is formed on the interior side of at least a portion of the second end wall portion of the outer shell, by providing an air flow along the interior side. The shroud includes a shroud wall portion disposed to cover at least a portion of the first end wall portion of the outer shell. The shroud channel is formed between the shroud wall portion of the shroud and the first end wall portion of the outer shell, for discharging from the shroud channel an air shroud flow along the exterior side of the second end wall portion of the outer shell.
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Citations
22 Claims
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1. A nozzle for feeding a combustion maintaining medium into a furnace at high temperature conditions, said nozzle comprising:
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a tiltable nozzle tip, at least partly protruding into the furnace; and
feeding means for feeding the combustion maintaining medium from a source of the medium to said tiltable nozzle tip, said tiltable nozzle tip including;
(i) a mainly open-ended outer shell, including a first end wall portion in flow connection with said feeding means and a second end wall portion protruding into the furnace, said second end wall portion having an interior side and an exterior side;
(ii) an air cooling zone formed on the interior side of at least a portion of said second end wall portion of said outer shell, and providing an air flow along the interior side;
(iii) a shroud being disposed on said tiltable nozzle tip, said shroud including a shroud wall portion disposed to cover at least a portion of the first end wall portion of said outer shell; and
(iv) an air shroud channel, formed between said shroud wall portion of said shroud and the first end wall portion of said outer shell, for discharging from said air shroud channel an air shroud flow which is guided along the exterior side of the second end wall portion of said outer shell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification