燃气轮机燃烧室火焰筒耐温技术的发展与应用

为了理清火焰筒耐温技术的发展脉络,明确未来的发展方向,对火焰筒壁面冷却技术、热障涂层技术与耐高温材料技术进行了综合分析.火焰筒冷却技术是保证火焰筒壁面处于材料允许的安全工作范围内的关键技术,多种冷却技术相结合的复合冷却技术将是今后的重点发展方向,而采用EB-PVD技术进行多层涂履的热障涂层技术将会得到进一步的发展.陶瓷材料由于其特殊的耐高温热氧化能力,将有望成为未来燃烧室火焰筒的主要材料.

Development and Application of Heat Resisting Techniques for Gas Turbine Combustor Liner

In order to clear the development route of heat resisting techniques for gas turbine combustor liner and definite the development tendency, techniques for cooling, thermal coating, and high temperature material were analyzed. Gas turbine combustor cooling is a key technology to ensure the liner wall to work under the safe temperature. The composite cooling which includes several cooling techniques is the major development direction in the future. The coating technique which uses EB-PVD to conduct multi-layer coating will develop further. The ceramic material will be the major material for combustor liner in the future because of its special heat resisting capability.