Infrared-based method and apparatus for online detection of cracks in steam turbine components
    31.
    发明申请
    Infrared-based method and apparatus for online detection of cracks in steam turbine components 有权
    用于在线检测汽轮机部件裂纹的红外线方法和装置

    公开(公告)号:US20070258807A1

    公开(公告)日:2007-11-08

    申请号:US11418035

    申请日:2006-05-04

    申请人: Hans-Gerd Brummel

    发明人: Hans-Gerd Brummel

    IPC分类号: F04D29/00

    摘要: An online method, system, and computer-readable code for remotely monitoring radiant energy emitted from a turbine blade (106), which may be undergoing an incipient degradation, such as a crack, in a relatively low-temperature, and saturated steam environment of the low pressure stage of a steam turbine. The method and system provide sufficient temporal and spatial resolution to obtain high quality infrared images of the blade areas of interest enabling the system to identify the crack at any of those areas of the blade prior to such a crack growing to a critical length.

    摘要翻译: 一种在线方法,系统和计算机可读代码,用于远程监测从涡轮叶片(106)发射的辐射能,其可能在相对低温和饱和的蒸汽环境中经历诸如裂纹的初始降解 蒸汽轮机的低压级。 该方法和系统提供足够的时间和空间分辨率以获得感兴趣的叶片区域的高质量红外图像,使得系统能够在这种裂纹扩展到临界长度之前识别刀片的任何区域的裂纹。

    Detection of gas turbine airfoil failure
    32.
    发明申请
    Detection of gas turbine airfoil failure 有权
    检测燃气轮机翼型故障

    公开(公告)号:US20060263216A1

    公开(公告)日:2006-11-23

    申请号:US11135114

    申请日:2005-05-23

    申请人: Hans-Gerd Brummel

    发明人: Hans-Gerd Brummel

    IPC分类号: B64C11/30

    摘要: A system and method for early detection of a failure of a gas turbine engine airfoil (10), such as but not restricted to a burn through of the airfoil outer skin (12). A sensor (52) provides a signal (54) responsive to a condition of fluid flowing through an outer cooling chamber (24) of the airfoil. A detected change in the condition of the fluid is correlated to a failure of the airfoil, which for example can be detected by measuring the static fluid pressure. An increase in the static pressure of fluid in the outer cooling chamber may indicate a breach in the region of the leading edge of the airfoil. A decrease in the static pressure of fluid in the outer cooling chamber may indicate a breach along other portions of the profile of the airfoil outer skin. Both pressure and temperature parameters of the fluid may be measured and coincident changes thereof correlated to a condition of failure of the airfoil.

    摘要翻译: 用于早期检测燃气涡轮发动机翼型件(10)的故障的系统和方法,例如但不限于翼型外皮(12)的燃烧通过。 传感器(52)响应于流过翼型的外部冷却室(24)的流体的状态提供信号(54)。 检测到的流体状态的变化与翼型件的故障相关,例如可以通过测量静态流体压力来检测。 外部冷却室中的流体静压的增加可以指示在翼型的前缘区域中的破裂。 外部冷却室中的流体的静压力的降低可以指示与翼型件外皮的轮廓的其它部分的突破。 可以测量流体的压力和温度参数,并且其一致的变化与翼型失效的条件相关。