公开(公告)号：US06619109B1

公开(公告)日：2003-09-16

申请号：US09669785

申请日：2000-09-25

申请人： George F. Dailey ,  Mark Fischer ,  Michael J. Metala ,  James A. Bauer

发明人： George F. Dailey ,  Mark Fischer ,  Michael J. Metala ,  James A. Bauer

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。

公开(公告)号：US5140264A

公开(公告)日：1992-08-18

申请号：US720038

申请日：1991-06-24

申请人： Michael J. Metala ,  C. Gerard Beck

发明人： Michael J. Metala ,  C. Gerard Beck

IPC分类号： G01N27/90

CPC分类号： G01N27/904

摘要： The present invention provides a method and apparatus for performing nondestructive material assessment of service exposed combustion turbine blades. According to the invention, the testing is accomplished by inserting eddy current (EC) probes into the blade's cooling holes, and evaluating the eddy current response of the blade. The eddy current probes are preferably coupled together in a differential mode. The measured response is then compared with a previously determined response corresponding with a known material condition. An assessment of the blade is made on the basis of this comparison.

摘要翻译： 本发明提供一种用于对服务暴露的燃气轮机叶片执行非破坏性材料评估的方法和装置。 根据本发明，通过将涡流（EC）探针插入叶片的冷却孔中并评估叶片的涡流响应来实现测试。 涡流探针优选地以差分模式耦合在一起。 然后将测量的响应与对应于已知材料状况的先前确定的响应进行比较。 在此比较的基础上对叶片进行评估。

公开(公告)号：US4741203A

公开(公告)日：1988-05-03

申请号：US933707

申请日：1986-11-21

申请人： Dwight O. Willaman ,  George F. Dailey ,  Michael J. Metala

发明人： Dwight O. Willaman ,  George F. Dailey ,  Michael J. Metala

IPC分类号： G01N27/90 ,  G01M19/00

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。

公开(公告)号：US06791351B2

公开(公告)日：2004-09-14

申请号：US10186048

申请日：2002-06-28

申请人： Mark William Fischer ,  James William Shelton ,  Michael J. Metala

发明人： Mark William Fischer ,  James William Shelton ,  Michael J. Metala

IPC分类号： G01R3134

CPC分类号： G01R31/343

摘要： An electromagnetic generator inspection system that employs a plurality of excitation frequencies and comprises one or more pickup coils that monitor a portion of the interior of a stator core to provide an output that identifies the location, severity and radial depth of any flaw in the insulation covering the laminations that are monitored.

摘要翻译： 一种电磁发生器检查系统，其采用多个激励频率并且包括一个或多个拾取线圈，其监测定子芯的内部的一部分以提供识别绝缘覆盖物中任何缺陷的位置，严重性和径向深度的输出 被监测的叠片。

公开(公告)号：US06508413B2

公开(公告)日：2003-01-21

申请号：US09821974

申请日：2001-03-30

申请人： James Alan Bauer ,  George Franklin Dailey ,  Mark William Fischer ,  Dwight Owen Willaman ,  Michael J. Metala

发明人： James Alan Bauer ,  George Franklin Dailey ,  Mark William Fischer ,  Dwight Owen Willaman ,  Michael J. Metala

IPC分类号： B05B300

CPC分类号： C23C4/16 ,  B05B13/0405 ,  B05B13/0636 ,  B08B9/049 ,  G21C17/017 ,  Y10S118/10

摘要： A machine (10) that can clean and spray coat the inside of a hollow pipe (14) can contain a support bar (16) and associated motors (6 and 8) with a moveable carriage (12) which mounts a thermal spray coating device (28) and/or an abrasion cleaning/profiling head (30) where a programmable controller external to the pipe is capable of controlling the motors (6 and 8).

公开(公告)号：US5670879A

公开(公告)日：1997-09-23

申请号：US165289

申请日：1993-12-13

申请人： Paul J. Zombo ,  Paul Guenther ,  Charles C. Moore ,  Michael J. Metala

发明人： Paul J. Zombo ,  Paul Guenther ,  Charles C. Moore ,  Michael J. Metala

IPC分类号： G01N27/90 ,  G01N29/06 ,  G01N29/22 ,  G01M1/22 ,  G01N27/82

CPC分类号： G01N29/223 ,  G01N27/9013 ,  G01N29/0618 ,  G01N29/0645 ,  G01N2291/2693

摘要： A nondestructive inspection device and a method of monitoring a defective condition in a rotating member of a combustion turbine engine using a nondestructive inspection device is presented. The nondestructive inspection device includes a sensor for monitoring the rotating member and a holder assembly for positioning the sensor near the rotating member without disassembling the combustion turbine engine. The holder assembly is capable of interchangeably positioning either an ultrasound transducer or an eddy current sensor. Signals indicative of the monitored condition are recorded and compared to a signal representation generated from a reference standard having a known defect so that a defective condition can be ascertained. The location of a defective condition is ascertained by using a magnetic belt having a plurality of magnets wrapped around the rotating member and an additional sensor to detect the magnets as they rotate. A signal indicative of the detected magnets is recorded along with the signal indicative of the monitored condition so that the angular position of the rotating member can be correlated with a detected defect.

摘要翻译： 提出了一种非破坏性检查装置和使用非破坏性检查装置监测燃气涡轮发动机的旋转构件的缺陷状况的方法。 非破坏性检查装置包括用于监测旋转构件的传感器和用于将传感器定位在旋转构件附近而不拆卸燃气涡轮发动机的保持器组件。 保持器组件能够互换地定位超声换能器或涡流传感器。 记录指示监视条件的信号，并将其与从具有已知缺陷的参考标准产生的信号表示进行比较，从而可以确定缺陷状况。 通过使用具有缠绕在旋转构件上的多个磁体的磁带和附加的传感器来确定有缺陷状况的位置，以便在旋转时检测磁体。 指示检测到的磁体的信号与指示监视条件的信号一起被记录，使得旋转部件的角位置可以与检测到的缺陷相关联。

公开(公告)号：US5061364A

公开(公告)日：1991-10-29

申请号：US470471

申请日：1990-01-26

申请人： Michael J. Metala ,  William G. Clark, Jr.

发明人： Michael J. Metala ,  William G. Clark, Jr.

IPC分类号： G01N1/02 ,  B01D35/143 ,  G01N1/10 ,  G01N15/00 ,  G01N15/06 ,  G01N27/72 ,  G01V3/02

CPC分类号： G01N15/0618 ,  B01D35/143

摘要： A diagnostic filter device for monitoring electrically conductive and semiconductive particles entrained by a fluid, composed of:a filter element (4) disposed to receive the fluid and to permit passage of the fluid while retaining particles entrained in the fluid;a component (8) disposed for producing an alternating electromagnetic field which extends across at least one region of the filter element (4); andan eddy current detecting instrument (12) connected to the electromagnetic field producing component (8) for detecting the influence on the field of particles in the filter element region.

摘要翻译： 一种用于监测由流体夹带的导电和半导电颗粒的诊断过滤装置，其由以下部分组成：过滤元件（4），其布置成接收流体并允许流体通过，同时保持夹带在流体中的颗粒; 设置成用于产生跨过过滤元件（4）的至少一个区域延伸的交变电磁场的部件（8）; 以及连接到所述电磁场产生部件（8）的涡流检测仪器（12），用于检测对过滤元件区域中的粒子的场的影响。

公开(公告)号：US4955235A

公开(公告)日：1990-09-11

申请号：US369725

申请日：1989-06-23

申请人： Michael J. Metala ,  William G. Clark, Jr. ,  Warren R. Junker ,  Lee W. Burtner ,  Thomas E. Arzenti ,  Harold P. Johnson ,  Robert P. Vestovich ,  Bruce W. Bevilacqua

发明人： Michael J. Metala ,  William G. Clark, Jr. ,  Warren R. Junker ,  Lee W. Burtner ,  Thomas E. Arzenti ,  Harold P. Johnson ,  Robert P. Vestovich ,  Bruce W. Bevilacqua

IPC分类号： G01N27/90 ,  G01N29/22 ,  G01N29/265

CPC分类号： G01N29/265 ,  G01N27/902 ,  G01N27/9046 ,  G01N29/221 ,  G01N2291/044 ,  G01N2291/045 ,  G01N2291/048 ,  G01N2291/105 ,  G01N2291/2636

摘要： Both an apparatus and a method for simultaneously inspecting the walls of a tube with both ultrasonic and eddy current probes is disclosed herein. The apparatus generally comprises a cylindrical housing assembly insertable within the tube to be inspected, and a probe carrier rotatably mounted within and helically movable with respect to the housing. The probe carrier holds three ultrasonic probes for transmitting ultrasonic beams which are directly oriented radially, chordally, and axially with resepect to the longitudinal axis of the tube, as well as an eddy current probe for simultaneously inspecting the walls of the tube with electromagnetic lines of flux. The apparatus further includes a helical drive train formed from a lead screw assembly having a motor means, a drive shaft, and a drive sleeve for imparting a helical scanning motion to the probe carrier with respect to the housing. The interior of the drive sleeve is slidably engaged to the shaft which is in turn coupled to the output of the motor, while the outside of the drive sleeve is threadedly engaged to the interior of the housing. The probe carrier is in turn coupled to the drive sleeve. In the method of the invention, the data generated by the three eddy current probes is correlated with the data generated by the eddy current probe for each specific section of the tube, and displayed simultaneously to the system operator. The resulting complementary display of both ultrasonic and eddy current probe information allows the system operator to accurately determine the size, shape and nature of any flaws which may be present in the walls of the tube.

摘要翻译： 本文公开了一种用于同时检查具有超声波和涡流探针的管壁的装置和方法。 该装置通常包括可插入待检查的管内的圆柱形壳体组件和可旋转地安装在其内并相对于壳体螺旋移动的探针架。 探针架支撑三个超声波探头，用于传输超声波束，该超声波束直接径向，弦向和轴向定向到管的纵向轴线，以及涡流探针，用于同时用电磁线检测管的壁 助焊剂 该装置还包括由具有马达装置，驱动轴和驱动套筒的导螺杆组件形成的螺旋传动系，用于相对于壳体向探针支架施加螺旋扫描运动。 驱动套筒的内部可滑动地接合到轴，该轴又联接到马达的输出，而驱动套筒的外部螺纹地接合到壳体的内部。 探头托架又耦合到驱动套筒。 在本发明的方法中，由三个涡电流探头产生的数据与由涡流探针针对管的每个特定部分生成的数据相关，同时显示给系统操作者。 所得到的超声波和涡流探针信息的互补显示允许系统操作者准确地确定可能存在于管壁中的任何缺陷的尺寸，形状和性质。

公开(公告)号：US4856337A

公开(公告)日：1989-08-15

申请号：US79860

申请日：1987-07-30

申请人： Michael J. Metala ,  William G. Clark, Jr. ,  Warren R. Junker ,  Lee W. Burtner ,  Thomas E. Arzenti ,  Harold P. Johnson ,  Robert P. Vestovich ,  Bruce W. Bevilacqua

发明人： Michael J. Metala ,  William G. Clark, Jr. ,  Warren R. Junker ,  Lee W. Burtner ,  Thomas E. Arzenti ,  Harold P. Johnson ,  Robert P. Vestovich ,  Bruce W. Bevilacqua

IPC分类号： G01N27/90 ,  G01N29/04 ,  G01N29/06 ,  G01N29/22 ,  G01N29/265 ,  G21C17/003

CPC分类号： G01N29/221 ,  G01N27/902 ,  G01N27/9046 ,  G01N29/0618 ,  G01N29/265 ,  G01N2291/02854 ,  G01N2291/044 ,  G01N2291/045 ,  G01N2291/048 ,  G01N2291/105 ,  G01N2291/2636

摘要： Both an apparatus and a method for simultaneously inspecting the walls of a tube with both ultrasonic and eddy current probes is disclosed herein. The apparatus generally comprises a cylindrical housing assembly insertable within the tube to be inspected, and a probe carrier rotatably mounted within and helically movable with respect to the housing. The probe carrier holds three ultrasonic probes for transmitting ultrasonic beams which are directly oriented radially, chordally, an axially with respect to the longitudinal axis of the tube, as well as an eddy current probe for simultaneously inspecting the walls of the tube with electromagnetic lines of flux. The apparatus further includes a helical drive train formed from a lead screw assembly having a motor means, a drive shaft, and a drive sleeve for imparting a helical scanning motion to the probe carrier with respect to the housing. The interior of the drive sleeve is slidably engaged to the shaft which is in turn coupled to the output of the motor, while the outside of the drive sleeve is threadedly engaged to the interior of the housing. The probe carrier is in turn coupled to the drive sleeve. In the method of the invention, the data generated by the three eddy current probes is correlated with the data generated by the eddy current probe for each specific section of the tube, and displayed simultaneously to the system operator. The resulting complementary display of both ultrasonic and eddy current probe information allows the system operator to accurately determine the size, shape and nature of any flaws which may be present in the walls of the tube.

公开(公告)号：US08941970B2

公开(公告)日：2015-01-27

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

IPC分类号： H01F13/00 ,  H02K15/02 ,  G01R31/34

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。