SOLID FUEL NOZZLE TIP ASSEMBLY
First Claim
1. A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler comprising:
- a) an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body; and
b) an inner nozzle body having an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body, the inner nozzle body being mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel, wherein the inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies.
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Accused Products
Abstract
A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air into a boiler or furnace includes an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body. An inner nozzle body has an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body. The inner nozzle body is mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel. The inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies.
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Citations
20 Claims
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1. A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler comprising:
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a) an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body; and b) an inner nozzle body having an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body, the inner nozzle body being mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel, wherein the inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler comprising:
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a) a substantially four-sided outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body; b) a substantially four-sided inner nozzle body defining an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body, the inner nozzle body being mounted within the outer nozzle body with the inner flow channel inboard of and substantially concentric and aligned with the outer flow channel; c) a first nozzle body support mounted within the outer flow channel between a first side of the outer nozzle body and a first side of the inner nozzle body; d) a second nozzle body support mounted within the outer flow channel between a second side of the outer nozzle body and a second side of the inner nozzle body; and e) a third nozzle body support mounted within the outer flow channel between a third side of the outer nozzle body and a third side of the inner nozzle body, wherein, each of the three nozzle body supports has a mounting pin passing therethrough joining the outer and inner nozzle bodies together to accommodate relative thermal expansion and contraction of the outer and inner nozzle bodies. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of constructing a solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler comprising:
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a) welding a plurality of flow vanes to an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body; b) positioning an inner nozzle body inside the outer flow channel of the outer nozzle body, wherein the inner nozzle body has an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body, wherein the step of positioning includes substantially aligning the inner and outer flow channels; and c) mounting the inner and outer nozzle bodies together using at least one mounting pin configured to accommodate relative thermal expansion and contraction of the outer and inner nozzle bodies. - View Dependent Claims (20)
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Specification