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2. 发明专利

JPS59203826A Liner for gas-turbine combustor 失效
标题翻译：燃气轮机组
公开(公告)号：JPS59203826A
公开(公告)日：1984-11-19
申请号：JP7745783
申请日：1983-05-04
申请人： Hitachi Ltd
发明人： OKIHARA TOMIO
IPC分类号： F02C3/30 , F02C7/141 , F23R3/00
CPC分类号： F02C3/305
摘要： PURPOSE:To prevent generation of cracks due to temperature change, by providing a splashboard at a collar section of a combustor of a gas turbine having a water injection means, in the manner that cooling water ejected from a fuel nozzle may not be eluted to the outer surface of a liner cap of the combustor. CONSTITUTION:A splashboard 8 is provided at the collar section of a combustor liner 1, in the manner that cooling water ejected from a fuel nozzle may not be splashed directly to the outer surface of the cap. A space, for instance, of about 10mm. is formed around the collar section, and the splashboard 8 is fixed securely by four rods. Further, the height from the collar section to the splashboard is selected to be about 20mm. so that compressed air can be passed through said space freely. Since, with such an arrangement, the temperature difference on the opposite sides of the cap of the combustor liner can be eliminated and generation of extraordinary thermal stress is prevented, it is enabled to prevent generation of cracks in the cap louver in an effective manner.
摘要翻译：目的：为了防止由于温度变化而产生裂缝，通过在具有注水装置的燃气轮机的燃烧器的轴环部分设置一个控制板，使得从燃料喷嘴排出的冷却水不会被洗脱到燃烧器的衬套盖的外表面。构成：在燃烧器衬套1的套环部分处设置一个控制板8，其方式是从燃料喷嘴喷出的冷却水不会直接溅到盖的外表面。一个空间，例如约10mm。形成在套环部分周围，并且通过四根杆固定固定板8。此外，从凸缘部分到仪表板的高度选择为约20mm。使得压缩空气可以自由地通过所述空间。由于通过这样的配置，可以消除燃烧器衬套的盖的相对侧的温度差，并且防止产生非凡的热应力，从而能够有效地防止盖板上的裂纹的产生。

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