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COMBUSTION SYSTEM INCLUDING A TRANSITION PIECE AND METHOD OF FORMING USING A CAST SUPERALLOY

机译:包括过渡件的燃烧系统和使用铸态高温合金形成的方法

摘要

A combustion system including a transition piece and method of forming the transition piece using a cast nickel-based superalloy is provided. The transition piece includes a body defining a flowpath and enclosure, the body having a circular inlet section for receiving combustion product from the combustor and an outlet end for flowing the combustor products into a first stage nozzle of a gas turbine. The transition piece comprises a one-piece single casting construction of the circular inlet section, the body, and the outlet end. The transition piece is formed from a nickel-based superalloy. The transition piece has a thick-to-thin ratio of wall thickness of thick transition to wall thickness of thin transition of about 1.1 to about 2.5.
机译:提供了一种燃烧系统,其包括过渡件和使用铸造的镍基高温合金形成过渡件的方法。过渡件包括限定流动路径和外壳的主体,该主体具有用于从燃烧器接收燃烧产物的圆形入口部分和用于使燃烧器产物流入燃气轮机的第一级喷嘴的出口端。过渡件包括圆形入口部分,阀体和出口端的一件式整体铸造结构。过渡件由镍基高温合金形成。过渡件的厚过渡壁厚与薄过渡壁厚之比为约1.1至约2.5。

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