Brush seal for use on bumpy rotating surfaces
    71.
    发明授权
    Brush seal for use on bumpy rotating surfaces 失效
    刷子密封用于颠簸的旋转表面

    公开(公告)号:US5941685A

    公开(公告)日:1999-08-24

    申请号:US950082

    申请日:1997-10-14

    IPC分类号: F01D11/00 F16J15/32 F01D11/08

    摘要: A brush seal which, among other applications, may be used for sealing a steam leakage gap between the shrouded free end of steam-turbine buckets of a steam-turbine rotor and a circumferentially surrounding steam-turbine stator. In a first embodiment, an unflexed brush seal includes bristles having a generally straight first portion secured to a backing plate and a coextensive and generally straight second portion with a free end. The second portion makes a greater angle, than that of the first portion, with respect to a directed reference line. In a second embodiment, the first and second portions are curved, wherein a tangent line to the second portion makes a greater angle than a tangent line to the first portion.

    摘要翻译: 除了其它应用之外,可以使用刷密封件,其用于密封蒸汽涡轮机转子的蒸汽涡轮机叶片的被覆盖的自由端与周向周围的汽轮机定子之间的蒸汽泄漏间隙。 在第一实施例中,非弯曲的刷子密封件包括具有固定到背板的大致直的第一部分和具有自由端的共同延伸且大致直的第二部分的刷毛。 与第一部分相比,第二部分相对于定向参考线具有更大的角度。 在第二实施例中,第一和第二部分是弯曲的,其中与第二部分相切的切线比与第一部分的切线更大的角度。

    SEAL DESIGN AND ACTIVE CLEARANCE CONTROL STRATEGY FOR TURBOMACHINES
    73.
    发明申请
    SEAL DESIGN AND ACTIVE CLEARANCE CONTROL STRATEGY FOR TURBOMACHINES 审中-公开
    密封设计和主动间隙控制策略

    公开(公告)号:US20140064909A1

    公开(公告)日:2014-03-06

    申请号:US13596386

    申请日:2012-08-28

    IPC分类号: F01D11/02 F16J15/447

    CPC分类号: F01D11/02 F01D11/001

    摘要: A labyrinth seal design, an actuation control clearance strategy, and a method of operating a turbomachine. The labyrinth seal design including a plurality of features configured to open and close radial clearances in response to relative axial movement between a stationary component and a rotating component. The actuation control clearance strategy and method of operating a turbomachine effective to achieve relative motion between a rotating component and a stationary component of the turbomachine using active elements. Axial displacement of the rotating component relative to the stationary component provides an adjustment in a radial clearance at one or more sealing locations between the rotating component and the stationary component to suit a given operating condition of the turbomachine.

    摘要翻译: 迷宫密封设计,致动控制间隙策略和操作涡轮机的方法。 迷宫式密封设计包括多个特征,其被配置为响应于固定部件和旋转部件之间的相对轴向运动而打开和关闭径向间隙。 驱动控制间隙策略和操作涡轮机的方法有效地使用有源元件实现涡轮机的旋转部件和固定部件之间的相对运动。 旋转部件相对于固定部件的轴向位移在旋转部件和固定部件之间的一个或多个密封位置处提供径向间隙的调节,以适应涡轮机的给定操作条件。

    Fiberoptic clearance detection system and method
    77.
    发明授权
    Fiberoptic clearance detection system and method 有权
    光纤清除检测系统及方法

    公开(公告)号:US08009939B2

    公开(公告)日:2011-08-30

    申请号:US12241527

    申请日:2008-09-30

    CPC分类号: G01B11/14

    摘要: A fiberoptic system for clearance detection between rotating and stationary turbomachinery components is presented. The system comprises an optical fiber probe comprising a plurality of optical fibers, at least one of the optical fibers comprising a transmission fiber and at least one of the optical fibers comprising a signal fiber; a light source for providing light through the transmission fiber towards a target; filters for receiving light from the signal fibers, at least two of the filters for filtering different wavelengths; and at least one photodetector for receiving filtered light from the filters.

    摘要翻译: 提出了一种用于旋转和固定涡轮机组件之间的间隙检测的光纤系统。 该系统包括包括多个光纤的光纤探针,至少一个光纤包括传输光纤,并且至少一个光纤包括信号光纤; 用于通过传输光纤向目标提供光的光源; 用于从信号光纤接收光的滤波器,用于滤除不同波长的滤波器中的至少两个; 以及至少一个用于从滤光器接收滤光的光电检测器。

    Turbomachinery system fiberoptic multi-parameter sensing system and method
    79.
    发明申请
    Turbomachinery system fiberoptic multi-parameter sensing system and method 有权
    涡轮机械系统光纤多参数传感系统及方法

    公开(公告)号:US20090320609A1

    公开(公告)日:2009-12-31

    申请号:US12215094

    申请日:2008-06-25

    IPC分类号: G01L1/24 G01H9/00 G01B11/00

    摘要: A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, in which the plurality of locations together are arranged in a substantially axial direction between the ends of the at least one shaft. The system further includes an array of high-temperature bifurcated fiber bundle based reflectance probes to receive reflectance signals from the shaft surface and send to an array of photosensitive detectors, configured to detect dynamic light reflected from the at least one turbomachinery system shaft surface in response to the transmitted light during rotation of at least one turbomachinery system shaft and generate dynamic reflected light signals there from. A sensing mechanism is configured to determine a torque or vibration on at least one turbomachinery system shaft in response to the dynamic reflected light signal signatures based on time-domain and frequency-domain signal processes.

    摘要翻译: 用于监测涡轮机械系统轴静态和动态扭矩,振动模式和相关操作状态的光纤多参数感测系统包括多分叉光纤束分光镜,其被配置为通过多个透镜将光透射到至少一个涡轮机械系统轴的表面 设置在所述至少一个轴的表面附近的多个位置的光纤束,其中所述多个位置一起在所述至少一个轴的端部之间沿大致轴向布置。 该系统还包括一组高温分叉纤维束的反射探测器,用于接收来自轴表面的反射信号并发送到一组光敏检测器,该阵列被配置为响应于检测从至少一个涡轮机械系统轴表面反射的动态光 在至少一个涡轮机械系统轴的旋转期间的透射光,并且从那里产生动态反射光信号。 感测机构被配置为响应于基于时域和频域信号处理的动态反射光信号特征来确定至少一个涡轮机械系统轴上的扭矩或振动。

    FLUIDIC SEALING FOR TURBOMACHINERY
    80.
    发明申请
    FLUIDIC SEALING FOR TURBOMACHINERY 失效
    流体密封用于涡轮机

    公开(公告)号:US20090297341A1

    公开(公告)日:2009-12-03

    申请号:US12131193

    申请日:2008-06-02

    IPC分类号: F01D5/20

    摘要: Disclosed is a seal for turbomachinery including a seal face locatable between a first turbomachinery component and a second turbomachinery component. At least one fluid channel extends through the seal. The at least one fluid channel is capable of injecting fluid flow between the first turbomachinery component and the second turbomachinery component at the seal face thereby disrupting a leakage flow between the first turbomachinery component and the second turbomachinery component. Further disclosed is a turbomachine utilizing the seal.

    摘要翻译: 公开了一种用于涡轮机械的密封件,包括可定位在第一涡轮机械部件和第二涡轮机械部件之间的密封面。 至少一个流体通道延伸穿过密封件。 所述至少一个流体通道能够在密封面处在第一涡轮机械部件和第二涡轮机械部件之间注入流体流动,从而破坏第一涡轮机械部件和第二涡轮机械部件之间的泄漏流。 另外公开了利用密封件的涡轮机。