On-line monitor for detecting excessive temperatures of critical
components of a turbine
    11.
    发明授权
    On-line monitor for detecting excessive temperatures of critical components of a turbine 有权
    用于检测涡轮机关键部件温度过高的在线监视器

    公开(公告)号:US6062811A

    公开(公告)日:2000-05-16

    申请号:US129905

    申请日:1998-08-06

    CPC分类号: F01D5/187 C23C4/00

    摘要: A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating comprising an indicator material having an activation temperature. The coating is situated on the internal cooling passages of the critical component. The monitor further comprises a sensor connected to an outlet conduit of the cooling system for determining the amount of degradation of indicator material by monitoring the cooling fluid flowing through the outlet conduit. Embodiments further comprising "sniffer" tubes for use with open-loop air cooling systems also are provided.

    摘要翻译: 提供了一种用于检测燃气轮机中的关键部件的过热的监视器。 当与闭环冷却系统结合使用时,监测器包括包含具有活化温度的指示剂材料的涂层。 涂层位于关键部件的内部冷却通道上。 显示器还包括连接到冷却系统的出口导管的传感器,用于通过监测流经出口导管的冷却流体来确定指示剂材料的劣化量。 还提供了还包括用于开环空气冷却系统的“嗅探”管的实施例。

    Method for production of combustion turbine blade having a single
crystal portion
    12.
    发明授权
    Method for production of combustion turbine blade having a single crystal portion 失效
    具有单晶部分的燃气轮机叶片的生产方法

    公开(公告)号:US4637448A

    公开(公告)日:1987-01-20

    申请号:US644751

    申请日:1984-08-27

    摘要: This is a process of fabricating turbine blades for combustion turbines. It is an improvement to the type of process where a mold containing molten metal is cooled in a controlled fashion such that solidification occurs slow enough to allow single crystal growth beginning at the airfoil end. In the improved process solidification is monitored and magnetic mixing of the remaining molten metal is started at approximately the beginning of solidification of said root section and at approximately the same time the rate of cooling of said blade is increased to a rate faster than at which single crystal growth occurs. Grain boundary strengthener (preferably carbon) can be added at approximately the same time mixing is begun. A blade is produced with a single crystal airfoil section and a fine grained root section and without a substantially inhomogeneous portion at the interface between the airfoil and root sections.

    摘要翻译: 这是制造燃气轮机的涡轮叶片的过程。 对于其中含有熔融金属的模具以受控的方式冷却的过程类型是一种改进,使得凝固发生得足够慢以允许在翼型端开始单晶生长。 在改进的方法中,监测固化,剩余的熔融金属的磁性混合在大约在所述根部的固化开始时开始,并且大致同时所述叶片的冷却速率增加到比单个 晶体生长发生。 可以在大约相同的时间加入混合开始加入谷物边界加强剂(优选碳)。 叶片产生具有单晶翼型部分和细粒根部,并且在翼型和根部之间的界面处没有基本上不均匀的部分。

    Single crystal turbine components made using a moving zone transient liquid phase bonded sandwich construction
    14.
    发明授权
    Single crystal turbine components made using a moving zone transient liquid phase bonded sandwich construction 有权
    使用移动区域瞬态液相粘结夹层结构制造的单晶涡轮机组件

    公开(公告)号:US06193141B1

    公开(公告)日:2001-02-27

    申请号:US09558131

    申请日:2000-04-25

    IPC分类号: B23K3102

    摘要: A method of bonding together at least two long, metal alloy segments, of turbine components, such as turbine blade segments (18, 19, 20 and 21) by: putting a melting point depressant between the segments at bond planes (34) between contracting segments; forming a heated zone across the segments and a heated front (32); where melt pools (36) form in a molten zone (38) at the heated front which front (32), pools (36) and zone (38) continuously move and pass along the bond planes (34); where crystal re-growth (35) occurs along the bonding planes to form bonds (34) between the individual segments (18, 19, 20 and 21) behind the moving molten zone (38).

    摘要翻译: 一种通过以下方式将至少两个长的金属合金段结合在一起的涡轮机部件,例如涡轮机叶片段(18,19,20和21):通过在接合平面(34)处的段之间放置熔点降低剂 段; 跨越所述段和加热的前部(32)形成加热区; 其中熔融池(36)在加热的前部形成在熔融区域(38)中,前部(32),池(36)和区域(38)连续地移动并沿着粘合平面(34)移动; 其中晶体再生长(35)沿着接合平面发生,以在移动熔融区(38)后面的各个段(18,19,20和21)之间形成接合(34)。

    On-line monitor for detecting excessive temperatures of critical components of a turbine
    18.
    发明授权
    On-line monitor for detecting excessive temperatures of critical components of a turbine 有权
    用于检测涡轮机关键部件温度过高的在线监视器

    公开(公告)号:US06200088B1

    公开(公告)日:2001-03-13

    申请号:US09566572

    申请日:2000-05-08

    IPC分类号: F01D518

    CPC分类号: F01D5/187 C23C4/00

    摘要: A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating comprising an indicator material having an activation temperature. The coating is situated on the internal cooling passages of the critical component. The monitor further comprises a sensor connected to an outlet conduit of the cooling system for determining the amount of degradation of indicator material by monitoring the cooling fluid flowing through the outlet conduit. Embodiments further comprising “sniffer” tubes for use with open-loop air cooling systems also are provided. In alternative embodiments, auxiliary cooling systems for supplying auxiliary cooling to critical components at certain activation temperatures also are provided.

    摘要翻译: 提供了一种用于检测燃气轮机中的关键部件的过热的监视器。 当与闭环冷却系统结合使用时,监测器包括包含具有活化温度的指示剂材料的涂层。 涂层位于关键部件的内部冷却通道上。 显示器还包括连接到冷却系统的出口导管的传感器,用于通过监测流经出口导管的冷却流体来确定指示剂材料的劣化量。 还提供了还包括用于开环空气冷却系统的“嗅探”管的实施例。 在替代实施例中,还提供用于在某些激活温度下向关键部件提供辅助冷却的辅助冷却系统。

    Method for laser beam welding metal matrix composite components
    20.
    发明授权
    Method for laser beam welding metal matrix composite components 失效
    金属基复合材料激光束焊接方法

    公开(公告)号:US4803334A

    公开(公告)日:1989-02-07

    申请号:US121814

    申请日:1987-11-16

    摘要: A substantially homogeneous metal matrix composite conduction weld between first and second metal matrix composite components is formed by placing the components into abutting position, with a major portion thereof spaced from each other, and directing a laser beam through the spacing onto the intersection and oscillating the beam across the intersection to form a shallow pool of metal matrix composite while feeding a metal matrix composite filler wire into the pool. The laser beam and filler wire are moved along the intersection such that solidification of the molten pool containing the filler wire metal matrix composite is effected, to form the weld line, without separation of the metal matrix composite into separate phases. The filler wire may be preheated and pressure may be applied, either to one or both components in a direction transverse the plane of the intersection or to the weld line in the direction of the plane of the intersection.

    摘要翻译: 第一和第二金属基复合材料部件之间的基本上均匀的金属基复合导电焊接通过将部件放置在邻接位置而形成,其主要部分彼此间隔开,并且将激光束通过间隔引导到交叉点上并振荡 横跨交叉点形成金属基质复合材料的浅池,同时将金属基质复合填料丝馈入池中。 激光束和填充线沿着交叉点移动,使得包含填充金属丝金属基复合材料的熔池的固化被实现,以形成焊接线,而不将金属基质复合材料分离成单独的相。 填充线可以被预热,并且可以在横向于交叉点的平面的方向上的一个或两个部件施加压力,或者在交叉点的平面的方向上施加压力。