发明名称 |
METHOD AND APPARATUS FOR COOLING COMBUSTOR LINER AND TRANSITION PIECE OF A GAS TURBINE |
摘要 |
A method and apparatus for cooling a combustor liner and transitions piece of a gas turbine include a combustor liner with a plurality of circular ring turbulators arranged in an array axially along a length defining a length of the combustor liner and located on an outer surface thereof; a first flow sleeve surrounding the combustor liner with a first flow annulus therebetween including a plurality of axial channels (C) extending over a portion of an aft end portion of the liner parallel to each other, the cross-sectional area of each channel either constant or varying along the length of the channel, the first flow sleeve having a plurality of rows of cooling holes formed about a circumference of the first flow sleeve for directing cooling air from the compressor discharge into the first flow annulus; a transition piece connected to the combustor liner and adapted to carry hot combustion gases to a stage of the turbine; a second flow sleeve surrounding the transition piece a second plurality of rows of cooling apertures for directing cooling air into a second flow annulus between the second flow sleeve and the transition piece; wherein the first plurality of cooling holes and second plurality of cooling apertures are each configured with an effective area to distribute less than 50% of compressor discharge air to the first flow sleeve and mix with cooling air from the second flow annulus.
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申请公布号 |
US2005268613(A1) |
申请公布日期 |
2005.12.08 |
申请号 |
US20040709886 |
申请日期 |
2004.06.01 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
INTILE JOHN C.;WEST JAMES A.;BYRNE WILLIAM |
分类号 |
F23R3/06;F02C7/12;F02C7/18;F23R3/00;F23R3/30;F23R3/42;(IPC1-7):F23R3/42 |
主分类号 |
F23R3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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