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1. 发明公开

KR1020020021591A 다단 터빈 그리고 전방 및 후방 휠공간 정화 방법 无效
标题翻译：多级涡轮机和前后轮胎空间的方法
公开(公告)号：KR1020020021591A
公开(公告)日：2002-03-21
申请号：KR1020010025729
申请日：2001-05-11
申请人： 제너럴 일렉트릭 캄파니
发明人： 레원살알버트 , 엘드리드사쉐버럴퀀틴 , 루프더글라스아서
IPC分类号： F02C7/14
CPC分类号： F01D5/08 , F01D5/081
摘要： PURPOSE: A multi-stage turbine and a method for purging front and rear wheel spaces are provided to improve the efficiency of a gas turbine. CONSTITUTION: In a multi-stage turbine, at least one turbine wheel(12) supports a row of buckets(14) for rotation, and the turbine wheel is located axially between first and second annular fixed arrays of nozzles(36, 38). A cooling air circuit for purging a wheel space between the turbine wheel and the second fixed annular array of nozzles(38) comprises a flow path through a shank portion(50) of one or more buckets connecting a wheel space between the turbine wheel and the first fixed annular array of nozzles(36) with the wheel space between the turbine wheel and the second fixed annular array of nozzles. The shank portion of the one or more buckets includes a forward wall and a rear wall forming, in part, a hollow chamber in the shank portion. The flow path is formed by at least one hole in the forward wall, the hollow chamber, and at least one hole in the rear wall.
摘要翻译：目的：提供一种多级涡轮机和一种用于清洗前轮和后轮空间的方法，以提高燃气轮机的效率。构造：在多级涡轮机中，至少一个涡轮机叶轮（12）支撑一排用于旋转的铲斗（14），并且涡轮机叶轮位于第一和第二环形固定喷嘴阵列（36,38）之间。用于清洗涡轮机叶轮和第二固定环形喷嘴组（38）之间的车轮空间的冷却空气回路包括通过一个或多个铲斗的柄部（50）的流动路径，其连接涡轮机叶轮和喷嘴（36）的第一固定环形阵列，其中所述涡轮机叶轮和所述第二固定环形阵列喷嘴之间的轮空间。一个或多个铲斗的柄部分包括前部壁和后壁，该后壁部分地形成柄部分中的中空腔。流路由前壁，中空室和后壁中的至少一个孔中的至少一个孔形成。

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