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Venturi for use in the swirl cup package of a gas turbine combustor having water injected therein
Venturi for use in the swirl cup package of a gas turbine combustor having water injected therein
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机译:用于在其中注入水的燃气轮机燃烧室的涡流杯组件中使用的文丘里管
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摘要
A combustion apparatus for a gas turbine engine including a combustor structure (12) having at least one combustion chamber (14), a dual cone fuel nozzle (24) for injecting both fuel and water to the combustion chamber (14), and a swirl cup package (22) upstream of and adjacent to the combustion chamber (14). The swirl cup package (22) further includes a swirler (28) and a venturi (34) extending between the fuel nozzle (24) and the combustion chamber (14) for mixing the fuel and water with air. The venturi (34) is configured to have a thickness (t) from an upstream end (44) to a downstream end (46) which provides a heat transfer conduction path that reduces axial stresses imposed on the venturi (34) when water impinges on an upstream portion of the venturi (34).
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