Turbine blade
    1.
    发明授权
    Turbine blade 失效
    涡轮叶片

    公开(公告)号:US5100293A

    公开(公告)日:1992-03-31

    申请号:US573798

    申请日:1990-08-28

    IPC分类号: F01D5/18

    摘要: A cooling structure for a turbine blade. Comprising a hollow-structured main body and a cooling medium discharging device located in the inner cavity of the hollow-structured main body and formed to discharge a cooling medium from the surface thereof, so that the cooling medium discharged from the cooling medium discharging device impinges against the inner surface of the main body to remove the heat from the same. The turbine blade further includes a projection formed on the inner surface of the leading edge of the main body, extending along the spanwise direction of the blade, and the cooling medium discharging device is formed to allow at least part of the cooling medium to directly impinge against proximal portions of the projection. With this arrangement, a turbine blade is provided which allows a small amount of cooling air to cool the turbine blade and its leading edge in particular with great effectiveness.

    Turbine stage structure
    5.
    发明授权
    Turbine stage structure 失效
    涡轮舞台结构

    公开(公告)号:US4662820A

    公开(公告)日:1987-05-05

    申请号:US752860

    申请日:1985-07-08

    IPC分类号: F01D9/02 F01D11/08 F01D11/02

    CPC分类号: F04D29/161 F01D11/08

    摘要: A stage structure of an axial turbine includes a stationary inner ring, a stationary outer wall, a row of stationary blades mounted on the stationary inner ring and outer wall, a row of moving blades, and a shroud ring mounted on the tips of the moving blades. An annular solid substance, disposed immediately downstream of an axial gap formed between an axial end of the shroud ring and surface of the outer wall axially facing the axial end of the shroud ring, reduces an expansion space provided immediately downstream of the axial gap, whereby circulation of an ejection flow from a main stream through the axial gap is reduced so that the turbine stage efficiency is improved. The annular solid substance may be a ring fixed to the stationary outer wall, a protrusion or a cylinder formed by a portion of the outer wall.

    摘要翻译: 轴流式涡轮机的级结构包括固定内环,固定外壁,安装在固定内环和外壁上的一排固定叶片,一排活动叶片和安装在移动的尖端上的护罩环 刀片。 设置在形成在护罩环的轴向端部和轴向面向护罩环的轴向端部的外壁的表面之间的轴向间隙的紧邻下游的环形固体物质减小了紧邻轴向间隙的下游的膨胀空间,由此 从主流通过轴向间隙的喷射流的循环减少,从而提高了涡轮级的效率。 环状固体物质可以是固定在静止的外壁上的环,由外壁的一部分形成的突起或圆筒。

    Single shaft combined cycle plant and operating method thereof
    7.
    发明授权
    Single shaft combined cycle plant and operating method thereof 有权
    单轴联合循环装置及其运行方法

    公开(公告)号:US06220014B1

    公开(公告)日:2001-04-24

    申请号:US09644697

    申请日:2000-08-24

    IPC分类号: F02C600

    摘要: In a system configuration and operating method for a single shaft combined cycle plant comprising a gas turbine (10), an exhaust heat recovery boiler (30) for generating steam using exhaust heat discharged from the gas turbine; and a steam turbine (20) driven by steam generated from the exhaust heat recovery boiler (30), rotors of the gas turbine (10) and rotors of the steam turbine (20) being coupled, and the steam turbine comprising a high pressure turbine (21) being supplied with and driven by high pressure steam generated at a superheater of the exhaust heat recovery boiler (30) and a reheating turbine (22) supplied with and driven by steam that passes through the high pressure turbine (21) and is reheated by a reheater of the exhaust heat recovery boiler (30), the gas turbine (10) operates independently, a regulated amount of cooling steam is supplied to the steam turbine (20) in order to prevent superheating due to windage loss of the steam turbine (20) rotating in an unventilated state, a bypass path (75) is provided in parallel with the exhaust heat recovery boiler (30) as a path through which cooling steam flows in order to further raise the cooling effect, and each turbine and a condenser (25) are made to communicate so as to make pressure within the turbines low.

    摘要翻译: 一种用于单轴联合循环设备的系统配置和操作方法,所述单轴联合循环设备包括燃气轮机(10),废热回收锅炉(30),其利用从所述燃气轮机排出的排气产生蒸汽; 以及由所述排气热回收锅炉(30)产生的蒸汽驱动的汽轮机(20),所述燃气轮机(10)的转子和所述蒸汽轮机(20)的转子被联接,所述汽轮机包括高压汽轮机 (21)由排气热回收锅炉(30)的过热器产生的高压蒸汽和通过高压涡轮机(21)供给并由蒸汽驱动的再加热涡轮机(22)供给并驱动, 由排气热回收锅炉(30)的再热器重新加热,燃气轮机(10)独立运转,向汽轮机(20)供给规定量的冷却蒸汽,以防止由于蒸汽的风阻损失导致的过热 涡轮(20)以不通风状态旋转,与排气热回收锅炉(30)并列设置有作为冷却水流动的路径的旁通路(75),以进一步提高冷却效果, 冷凝器(25)为m ade沟通,使涡轮机内的压力低。

    Combined plant having steam turbine and gas turbine connected by single
shaft
    9.
    发明授权
    Combined plant having steam turbine and gas turbine connected by single shaft 失效
    具有通过单轴连接的蒸汽轮机和燃气轮机的组合工厂

    公开(公告)号:US4519207A

    公开(公告)日:1985-05-28

    申请号:US452935

    申请日:1982-12-27

    CPC分类号: F01K23/16 F01K13/025

    摘要: A combined plant including a gas turbine, a steam turbine and a waste heat recovery boiler using exhaust gases of the gas turbine as a heat source for producing steam serving as a drive source of the steam turbine further includes an ancillary steam source separate from and independent of the waste heat recovery boiler. At the time of startup of the plant, steam from the ancillary steam source is introduced into the steam turbine until the conditions for feeding air to the waste heat recovery boiler are set, to thereby avoid overheating of the steam turbine due to a windage loss.

    摘要翻译: 使用燃气轮机,蒸汽轮机和使用燃气轮机的废气作为用于产生蒸汽涡轮机的驱动源的蒸汽的热源的废热回收锅炉的联合设备还包括分离和独立的辅助蒸汽源 的废热回收锅炉。 在工厂启动时,来自辅助蒸汽源的蒸汽被引入到蒸汽轮机中,直到设置用于供给废热回收锅炉的空气的条件,从而避免了由于风阻损失导致的蒸汽轮机的过热。

    Single shaft combined cycle plant and operating thereof
    10.
    发明授权
    Single shaft combined cycle plant and operating thereof 有权
    单轴联合循环设备及其运行

    公开(公告)号:US06405537B1

    公开(公告)日:2002-06-18

    申请号:US09614760

    申请日:2000-07-11

    IPC分类号: F02C618

    摘要: A system configuration and operating method for a single shaft combined cycle plant includes a gas turbine, an exhaust heat recovery boiler for generating steam using exhaust heat discharged from the gas turbine, and a steam turbine driven by steam generated from the exhaust heat recovery boiler. Rotors of the gas turbine and rotors of the steam turbine are coupled. The steam turbine includes a high pressure turbine being supplied with and driven by high pressure steam generated at a superheater of the exhaust heat recovery boiler and a reheating turbine supplied with and driven by steam that passes through the high pressure turbine and is reheated by a reheater of the exhaust heat recovery boiler. The gas turbine operates independently and a regulated amount of cooling steam is supplied to the steam turbine in order to prevent superheating due to windage loss of the steam turbine rotating in an unventilated state. A bypass path is provided in parallel with the exhaust heat recovery boiler as a path through which cooling steam flows in order to further raise the cooling effect, and each turbine and a condenser are made to communicate so as to make pressure within the turbines low.

    摘要翻译: 用于单轴联合循环设备的系统配置和操作方法包括燃气轮机,使用从燃气轮机排出的排气产生蒸汽的废热回收锅炉,以及由排气热回收锅炉产生的蒸汽驱动的蒸汽轮机。 燃气轮机的转子和蒸汽轮机的转子相连接。 蒸汽轮机包括高压涡轮机,该高压涡轮机由排气热回收锅炉的过热器产生的高压蒸汽和由蒸汽提供并由蒸汽驱动并通过高压涡轮机驱动并由再热器再加热的高压蒸汽驱动 的废热回收锅炉。 燃气轮机独立运行,并且将调节量的冷却蒸汽供应到蒸汽涡轮机,以防止由于在不通风状态下旋转的蒸汽轮机的风阻损失而导致的过热。 与排气热回收锅炉并联设置旁通路径作为冷却水蒸汽流过的路径,以进一步提高冷却效果,并且使每个涡轮机和冷凝器连通以使涡轮机内的压力低。