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公开(公告)号：US06619109B1
公开(公告)日：2003-09-16
申请号：US09669785
申请日：2000-09-25
IPC分类号： G01M1500
CPC分类号： G01M3/2853 , F01D9/06 , F01D21/003 , F05D2220/31 , F05D2230/80 , G01M3/2869
摘要： An inspection apparatus (40) for in-situ leak testing of the bell seal (30) of a steam turbine (10). The apparatus includes a pair of inflatable bladders (48,52) for defining a sealed volume having the bell seal (30) as its only leakage path. The mass flow rate of pressurized air (70) at various pressures through the bell seal (30) is compared to the known flow rates through a similarly designed bell seal having various degrees of degradation. A camera (60) rotated by motor (62) between the bladders (48,52) provides an indication of the proper positioning of the inspection apparatus (40) and facilitates a visual inspection of the bell seal (30) and retaining nut (42). The inspection apparatus (40) may be inserted into an inlet to the turbine through a disassembled flow control valve without the need for any disassembly of the turbine.
摘要翻译： 一种用于汽轮机（10）的钟形密封件（30）的现场泄漏测试的检查装置（40）。 该装置包括一对可充气气囊（48,52），用于限定具有喇叭密封件（30）作为其唯一泄漏路径的密封容积。 通过钟形密封件（30）的各种压力下的加压空气（70）的质量流量通过具有各种劣化程度的相似设计的钟形密封件与已知的流速进行比较。 由电动机（62）在气囊（48,52）之间旋转的照相机（60）提供了检查装置（40）的适当定位的指示，并且便于对钟形密封件（30）和保持螺母（42）的目视检查 ）。 检查装置（40）可以通过拆卸的流量控制阀插入到涡轮机的入口，而不需要拆卸涡轮机。
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公开(公告)号：US06487922B1
公开(公告)日：2002-12-03
申请号：US09669783
申请日：2000-09-25
IPC分类号： G01N2910
CPC分类号： G01N29/225 , G01N29/265 , G01N29/28 , G01N2291/044 , G01N2291/2636 , Y10T74/19674 , Y10T74/19949 , Y10T74/19953 , Y10T74/19958 , Y10T74/19963
摘要： An inspection apparatus (40) for remote inspection of the trepan radius area (34) of the inlet sleeve (24) of a steam turbine (10). The apparatus (40) provides a sealed volume (50) between a pair of inflatable bladders (46,48) for the introduction of a liquid couplant for the immersion of ultrasonic transducers (42,44). A laser line generator (62) generates a beam of light visible through camera (60) which impinges upon the inlet bell seal (30) when the apparatus (40) is in a proper inspection position within the inlet sleeve (24). Guide vanes (56) provide centering and generate an insertion force during air assisted insertion of apparatus (40). Transducers (42,44) are indexed axially and circumfretially by the independent rotation of axial drive gear (72) and longitudinal drive gear (70) engaged with a pattern of gear teeth (69) formed as a combination of circumferential spur gear teeth and axial rack gear teeth cut into a single surface of a spline shaft (68).
摘要翻译： 一种用于远程检查蒸汽涡轮机（10）的入口套管（24）的平板半径区域（34）的检查装置（40）。 装置（40）在一对可充气气囊（46,48）之间提供密封的体积（50），用于引入用于浸没超声换能器（42,44）的液体耦合剂。 当设备（40）处于入口套筒（24）内的适当检查位置时，激光线发生器（62）产生通过照相机（60）可见的光束，该光束撞击入口钟形密封件（30）。 导向叶片（56）在空气辅助插入装置（40）期间提供定心并产生插入力。 传感器（42,44）通过轴向驱动齿轮（72）和纵向驱动齿轮（70）的独立旋转轴向和圆周地转位，该纵向驱动齿轮（70）与形成为圆周正齿轮齿的组合的齿轮齿（69）和轴向驱动齿轮 齿条齿切割成花键轴（68）的单个表面。
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3.发明授权
公开(公告)号：US4741203A
公开(公告)日：1988-05-03
申请号：US933707
申请日：1986-11-21
CPC分类号： G01N27/902
摘要： An inspection device which permits inspection of the interior of a turbine for metal integrity. The inspection device is mounted on a sensor assembly that engages a turbine blade and rests on the turbine disc. Metal integrity sensors are mounted on the sensor assembly and inspect various areas of turbine blades and turbine rotor steeples. The associated coil assembly provides a coil of wire and magnetic shielding which improves the sensitivity of the metal integrity sensors. The associated method provides for proper positioning of the apparatus and inspecting the turbine for metal integrity.
摘要翻译： 一种检查装置，其允许检查涡轮机的内部以用于金属完整性。 检查装置安装在传感器组件上，该传感器组件接合涡轮叶片并且搁置在涡轮盘上。 金属完整性传感器安装在传感器组件上，并检查涡轮叶片和涡轮转子尖塔的各个区域。 相关联的线圈组件提供线圈和磁屏蔽线圈，其提高了金属完整性传感器的灵敏度。 相关联的方法提供了设备的正确定位和检查涡轮机的金属完整性。
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4.发明申请NONDESTRUCTIVE INSPECTION HEADS FOR COMPONENTS HAVING LIMITED SURROUNDING SPACE 有权具有有限空间的组件的非结构性检查头公开(公告)号：US20090126493A1
公开(公告)日：2009-05-21
申请号：US11776187
申请日：2007-07-11
申请人： Charles Crawford Moore , Michael Charles Moore , Michael F. Fair , James A. Bauer , Michael J. Metala
发明人： Charles Crawford Moore , Michael Charles Moore , Michael F. Fair , James A. Bauer , Michael J. Metala
IPC分类号： G01N29/265 , G01N29/28 , G01N27/90
CPC分类号： G01N29/225 , G01N27/902 , G01N29/265 , G01N2291/101 , G01N2291/269
摘要： An inspection head where non-destructive inspection is structured to fit into narrow spaces, and to accurately and repeatably move an inspection probe along a surface to be inspected. Movement of the inspection head along an X, Y, Z, Θ, and Φ-axis is precisely controlled by individual drive mechanisms.
摘要翻译： 一种检查头，其中非破坏性检查被构造成适合狭窄的空间，并且准确地和可重复地沿检查的表面移动检查探针。 检测头沿X，Y，Z，Theta和Phi轴的移动由各个驱动机构精确控制。
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5.发明授权Nondestructive inspection heads for components having limited surrounding space 有权非破坏性检查头，用于周围空间有限的部件公开(公告)号：US07950297B2
公开(公告)日：2011-05-31
申请号：US11776187
申请日：2007-07-11
申请人： Charles Crawford Moore , Michael Charles Moore , Michael F. Fair , James A. Bauer , Michael J. Metala
发明人： Charles Crawford Moore , Michael Charles Moore , Michael F. Fair , James A. Bauer , Michael J. Metala
IPC分类号： G01M19/00
CPC分类号： G01N29/225 , G01N27/902 , G01N29/265 , G01N2291/101 , G01N2291/269
摘要： An inspection head where non-destructive inspection is structured to fit into narrow spaces, and to accurately and repeatably move an inspection probe along a surface to be inspected. Movement of the inspection head along an X, Y, Z, Θ, and Φ-axis is precisely controlled by individual drive mechanisms.
摘要翻译： 一种检查头，其中非破坏性检查被构造成适合狭窄的空间，并且准确地和可重复地沿检查的表面移动检查探针。 检测头沿X，Y，Z，Θ和Φ轴的移动由各个驱动机构精确控制。
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6.发明授权Phased array ultrasonic inspection system for turbine and generator rotor bore 有权涡轮和发电机转子孔相控阵超声波检测系统公开(公告)号：US08438929B2
公开(公告)日：2013-05-14
申请号：US12874289
申请日：2010-09-02
IPC分类号： G01M13/00
CPC分类号： G01N29/07 , G01M13/00 , G01N29/223 , G01N29/2456 , G01N29/262 , G01N2291/0289 , G01N2291/106 , G01N2291/2636 , G01N2291/2693
摘要： A phased array ultrasonic testing system for examining discontinuities in turbine or generator rotor bores formed within turbine or generator rotors of a turbine or generator rotor assembly. The system includes a phased array ultrasonic transducer structured to be coupled to a surface of the rotor bore at a first location in order to emit an ultrasonic beam toward a second location of the rotor bore which is to be examined. The system further includes a control system with a computer and a controller for programming, emitting, and steering the ultrasonic beam via at least one, two-dimensional phased array transducer, thereby precisely and accurately inspecting the area of interest. Computer control of the beam permits the number of inspection locations and the number of different transducer wedges to be reduced providing for an efficient, timely inspection.
摘要翻译： 一种用于检查在涡轮或发电机转子组件的涡轮或发电机转子内形成的涡轮机或发电机转子孔中的不连续性的相控阵超声波测试系统。 该系统包括相控阵超声波换能器，该相控阵超声波换能器被构造成在第一位置处联接到转子孔的表面，以朝向待检查的转子孔的第二位置发射超声波束。 该系统还包括具有计算机和控制器的控制系统，用于经由至少一个二维相控阵转换器来编程，发射和转向超声波束，由此精确而准确地检查感兴趣的区域。 光束的计算机控制允许减少检查位置的数量和减少不同传感器楔块的数量，从而有效，及时地进行检查。
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7.发明授权System and method including a buried flexible sheet target impregnated with ferromagnetic particles and eddy current probe for determining proximity of a non-conductive underground structure 失效包括用于确定非导电性地下结构的临近的带有非线性颗粒和EDDY电流探测器的布置的柔性片材目标的系统和方法
公开(公告)号：US5200704A
公开(公告)日：1993-04-06
申请号：US662664
申请日：1991-02-28
摘要： Both a system and a method are provided which allows an eddy current probe to accurately determine both the proximity and dimensions of non-conductive structures which are normally invisible to such probes. The system includes a portable target medium that is movable into a known position with respect to the non-conductive structure, and that includes a conductive material that couples strongly with a fluctuating magnetic field, and a movable eddy current probe that emanates a fluctuating magnetic field and which generates a signal indicative of the magnitude of the interaction between the field and the portable target medium from which the distance between the two may be computed. The system may be used to determine the proximity of non-conductive structures such as plastic pipes that have been buried under ground, as well as the dimensions of such non conductive structures.
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公开(公告)号：US5161413A
公开(公告)日：1992-11-10
申请号：US666323
申请日：1991-03-08
IPC分类号： G01N29/22 , G01N29/265
CPC分类号： G01N29/265 , G01N29/223 , G01N2291/044
摘要： A device and method for guided testing of an object, and in particular, an internal structural component in an object, using non-destructive ultrasonic techniques is provided. A housing containing at least one ultrasonic transducer probe is adapted to be placed directly on the surface of the object to be tested. Eddy current probes are provided in the housing to guide the ultrasonic probe such that the ultrasonic energy will be directed at the appropriate internal structural design component of the object to be inspected. A microcomputer is then used to record the data obtained using ultrasonic signals and the position on the object using the information designed from the eddy current probes.
摘要翻译： 提供了一种用于使用非破坏性超声波技术来引导测试对象，特别是物体中的内部结构部件的装置和方法。 包含至少一个超声换能器探头的壳体适于直接放置在被测试物体的表面上。 涡流探针设置在壳体中以引导超声波探头，使得超声能量将被引导到待检查对象的适当的内部结构设计部件。 然后使用微型计算机使用由涡流探针设计的信息记录使用超声信号获得的数据和物体上的位置。
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公开(公告)号：US5029476A
公开(公告)日：1991-07-09
申请号：US404136
申请日：1989-09-07
CPC分类号： G01B17/02 , G01N2291/044
摘要： A system for determining the cross sectional profile of an object (24) having two opposed surfaces (26,28), includes:an ultrasonic transducer (16) having a reference surface (20) and arranged to emit and receive ultrasonic energy via the reference surface (20);a thickness determining unit (60) connected to the transducer (16) for causing the transducer (16) to emit ultrasonic energy via the reference surface (20) and for detecting reflected ultrasonic energy received by the transducer (16) via the reference surface (20) in order to derive indications of the distance between the reference surface (20) and an ultrasonic energy reflecting surface facing the reference surface (20);a carriage (2) supporting the transducer (16);a guide member (4) defining a linear travel path having a reference point and supporting the carriage (2) for movement along the travel path;a position determining unit (12,44,62) operatively associated with the carriage (2) for deriving an indication of the location of the carriage (2) along the travel path relative to the reference point;elements (32,34) for securing the guide member (4) to the object (24) so that the linear travel path extends along one of the two opposed surfaces (26); anda signal processing device (64) coupled to the thickness determining unit (60) and the position determining unit (12,44,62) for producing representations of the distance between the opposed surfaces (26,28) of the object (24) correlated with the location of the carriage (2) relative to the reference point when the reference surface (20) is in contact with one of the two opposed surfaces (26,28).
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10.发明申请METHOD AND APPARATUS FOR DEMAGNETIZING GENERATOR COMPONENTS PRIOR TO ELECTROMAGNETIC CORE IMPERFECTION TESTING OR EL-CID TESTING 有权用于电磁核心测试或电致发光测试前的发电机组件的方法和装置公开(公告)号：US20130094117A1
公开(公告)日：2013-04-18
申请号：US13275425
申请日：2011-10-18
申请人： Michael J. Metala , Werner Yzelman
发明人： Michael J. Metala , Werner Yzelman
CPC分类号： H01F13/006 , G01R31/34 , H02K15/02
摘要： A method and apparatus for determining and for reducing magnetism in a generator stator core (20). The method includes extending one or more conductors (38) proximate the core, applying a polarity-reversing excitation voltage to the one or more conductors, and reducing an amplitude of the voltage over time, wherein the voltage causes current to flow in the conductors, the current generating a magnetic field that demagnetizes the core. The method and apparatus are useful for determining hot spots in the core.
摘要翻译： 一种用于确定和减少发电机定子铁心（20）中的磁性的方法和装置。 该方法包括将靠近芯的一个或多个导体（38）延伸，向一个或多个导体施加极性反转的激励电压，并且随时间减小电压的幅度，其中电压导致电流在导体中流动， 该电流产生使磁芯退磁的磁场。 该方法和装置可用于确定核心中的热点。
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