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    • 17. 发明授权
    • Inner cylinder for a gas turbine combustor reinforced by built up welding
    • 用于燃气轮机燃烧器的内缸,通过建立焊接加强
    • US5050385A
    • 1991-09-24
    • US541946
    • 1990-06-22
    • Fumiyuki HiroseNobuyuki Iizuka
    • Fumiyuki HiroseNobuyuki Iizuka
    • B23K9/04B23K31/00F23R3/00F23R3/06
    • F23R3/002B23K9/046F05B2260/202F23R2900/00005F23R2900/03042
    • A gas turbine combustor has an inner cylinder provided with a multiplicity of louvers for introducing cooling air and a plurality of air ports for introducing combustion air. The portions of the inner cylinder wall at both ends of each louver, where the concentration of stress due to thermal stress is heaviest, is reinforced by build-up welding thereby to prevent cracking at these portions of the cylinder wall. The build-up welding effectively stops the propagation of crack happened to be caused in the inner cylinder wall for any reason. The portions of the inner cylinder wall around the air ports also may be reinforced by build-up welding over the entire peripheries of these air ports. The build-up weld on the periphery of each air port prevents any crack from being propagated to the brim of each air port.
    • 燃气轮机燃烧器具有设置有用于引入冷却空气的多个百叶窗的内筒和用于引入燃烧空气的多个空气口。 由于热应力引起的应力集中在最重的每个百叶窗两端的内筒壁的部分通过堆积焊接加强,从而防止在气缸壁的这些部分处的开裂。 由于任何原因,积层焊接有效地阻止了内筒壁发生裂纹的传播。 围绕空气端口的内筒壁的部分也可以通过在这些空气端口的整个周边上的堆积焊接来加强。 每个空气端口周围的堆积焊缝防止任何裂纹传播到每个空气端口的边缘。