LAMB WAVE ULTRASONIC PROBE FOR CRACK DETECTION AND MEASUREMENT IN THIN-WALLED TUBING
    41.
    发明申请
    LAMB WAVE ULTRASONIC PROBE FOR CRACK DETECTION AND MEASUREMENT IN THIN-WALLED TUBING 审中-公开
    LAMB波超声波探头,用于薄壁管道中的裂纹检测和测量

    公开(公告)号:WO1997035188A1

    公开(公告)日:1997-09-25

    申请号:PCT/US1997000095

    申请日:1997-01-09

    CPC classification number: G01N29/265 G01N2291/044 G01N2291/2636

    Abstract: A probe inspects steam generator tubing for defects. The probe includes a transducer which generates a localized ultrasonic Lamb wave. The ultrasonic wave is transferred to the tubing by a coupling medium, such as water, that physically couples the transducer and the tubing. Defects in the tubing reflect the ultrasonic wave to the probe which detects the reflections. The results are thenused to determine the length and depth of such defects as cracks, pitting, and thinning. The localized ultrasonic wave performs and inspection sensitive enough to detect ligaments between crack segments. This allows highly accurate predictions of tubing integrity and rupture strength.

    Abstract translation: 探头检查蒸汽发生器管道是否有缺陷。 探头包括产生局部超声波兰姆波的换能器。 超声波通过物理耦合换能器和管道的耦合介质(例如水)传递到管道。 管道中的缺陷将超声波反射到检测反射的探头。 然后将结果用于确定裂纹,点蚀和变薄等缺陷的长度和深度。 局部超声波的检测灵敏度足以检测裂纹段之间的韧性。 这允许高度准确地预测管道完整性和断裂强度。

    BOUNDARY LAYER COAL NOZZLE ASSEMBLY FOR STEAM GENERATION APPARATUS
    42.
    发明申请
    BOUNDARY LAYER COAL NOZZLE ASSEMBLY FOR STEAM GENERATION APPARATUS 审中-公开
    用于蒸汽发生装置的边界层煤气喷嘴组件

    公开(公告)号:WO1997023751A1

    公开(公告)日:1997-07-03

    申请号:PCT/US1996017509

    申请日:1996-10-28

    CPC classification number: F23D1/00 F23D2201/101

    Abstract: A steam generating system (10) includes a nozzle for pulverized coal and air which includes an elongated generally cylindrical body (30) having a nozzle at one axial portion thereof. The apparatus also includes a nozzle tip (34) that is generally sleeve shaped and dimensioned to overlap an extremity of the body (30). The tip (34) is mounted for pivotal movement about the extremity of the body (30) and the nozzle tip (34) includes first and second surfaces (58, 59) dimensioned and configured for receiving therebetween all flow from the nozzle body (30). The apparatus also includes a seal plate (50) that is also generally sleeve shaped and dimensioned and configured to provide sealing between the extremity and the nozzle tip (34). The seal plate (50) is mounted for pivotal movement about the extremity of the body (30) and is dimensioned and configured to have third and fourth surfaces (52, 54) disposed respectively in closely spaced relationship to the first and second surfaces (58, 59) throughout all possible pivotal positions of the seal plate (50) and the nozzle tip (34). This closely spaced relationship defines an elongated slot for passage of air. The seal plate (50) includes a stop (56) to limit relative pivotal motion between the nozzle tip (34) and the seal plate (50). In some forms of the invention the first and second surfaces (58, 59) are planar surfaces. The third and fourth surfaces (52, 54) may be cylindrical sections. The stop (56) may include at least one upstanding member carried on the seal plate (50). The seal plate (50) may include first and second planar opposed sides joined by the third and fourth surfaces (52, 54). In some forms of the invention the third and fourth surfaces (52, 54) have concave parts and the concave parts are disposed in opposed relationship. The stop (56) may be a part of the first and second planar opposed sides and may include at least one ear on each of the first and second sides and in some cases also include a second ear on each of the first and second sides. All of the ears may be generally planar and each of the ears may be coplanar with one of the sides.

    Abstract translation: 蒸汽发生系统(10)包括用于粉煤和空气的喷嘴,其包括在其一个轴向部分处具有喷嘴的细长的大致圆筒体(30)。 该装置还包括一个喷嘴头(34),该喷嘴尖端(34)通常是套筒形的并且尺寸设计成与主体(30)的末端重叠。 安装所述尖端(34)用于绕所述主体(30)的所述末端枢转运动,并且所述喷嘴末端(34)包括第一和第二表面(58,59),所述第一和第二表面(58,59)的尺寸和构造用于在其间接收来自所述喷嘴体 )。 该装置还包括密封板(50),该密封板也通常是套筒形并且尺寸和构造成在末端和喷嘴尖端(34)之间提供密封。 密封板(50)安装成围绕主体(30)的末端枢转运动,并且其尺寸和构造成具有分别以与第一和第二表面(58)紧密间隔的关系设置的第三和第四表面(52,54) ,59)在密封板(50)和喷嘴尖端(34)的所有可能的枢转位置。 这种紧密间隔的关系限定了用于空气通过的细长槽。 密封板(50)包括用于限制喷嘴头(34)和密封板(50)之间的相对枢转运动的止挡件(56)。 在本发明的某些形式中,第一和第二表面(58,59)是平面表面。 第三和第四表面(52,54)可以是圆柱形部分。 止动件(56)可以包括承载在密封板(50)上的至少一个直立件。 密封板(50)可以包括由第三和第四表面(52,54)连接的第一和第二平面相对侧。 在本发明的一些形式中,第三和第四表面(52,54)具有凹形部分,并且凹部以相对的关系设置。 止动件(56)可以是第一和第二平面相对侧的一部分,并且可以包括在第一和第二侧中的每一个上的至少一个耳朵,并且在一些情况下还包括在第一和第二侧中的每一个上的第二耳朵。 所有的耳朵可以是大致平面的,并且每个耳朵可以与其中一个侧面共面。

    APPARATUS FOR CONTROLLING STEAM TEMPERATURE
    43.
    发明申请
    APPARATUS FOR CONTROLLING STEAM TEMPERATURE 审中-公开
    控制蒸汽温度的装置

    公开(公告)号:WO1997023749A1

    公开(公告)日:1997-07-03

    申请号:PCT/US1996018790

    申请日:1996-11-25

    CPC classification number: F23C9/08 F22G5/08 F23C5/32 Y10S122/01

    Abstract: The apparatus includes a hot air chamber (46) for receiving hot air from an associated air preheater, and a recirculation gas chamber (60) for receiving recirculation gas from a recirculation fan (22). The apparatus also includes a duct (54) from the associated air preheater communicating with the hot air chamber (46) and a duct (62) from the associated recirculation fan (22) communicating with the recirculation gas chamber (60). A valve (66) is provided that is movable between a first position wherein flow through the duct (62) from the associated recirculation fan (22) is blocked and flow through a passageway (64) between the hot air chamber (46) and the recirculation gas chamber (60) is open to allow flow therebetween and a second position wherein flow through the duct (62) from the associated recirculation fan (22) is not blocked and flow through the passageway (64) between the hot air chamber (46) and the recirculation gas chamber (60) is closed to prevent flow therebetween.

    Abstract translation: 该装置包括用于从相关联的空气预热器接收热空气的热空气室(46)和用于从再循环风扇(22)接收再循环气体的再循环气体室(60)。 该设备还包括来自与热空气室(46)连通的相关联的空气预热器的管道(54)和与再循环气体室(60)连通的相关联的再循环风扇(22)的管道(62)。 提供了一个阀门(66),其可在第一位置和第二位置之间移动,在第一位置,来自相关联的再循环风扇(22)的管道(62)的流动被阻塞并流过热空气室(46)和 再循环气体室(60)是敞开的,以允许其间流动,而第二位置,其中来自相关联的再循环风扇(22)的通过管道(62)的流动不被阻塞并且流过热空气室(46)之间的通道(64) )并且再循环气体室(60)被关闭以防止它们之间的流动。

    PACKAGE BOILER OF UNITARY CONSTRUCTION
    44.
    发明申请
    PACKAGE BOILER OF UNITARY CONSTRUCTION 审中-公开
    锅炉锅炉

    公开(公告)号:WO1996039594A1

    公开(公告)日:1996-12-12

    申请号:PCT/US1996007600

    申请日:1996-05-23

    CPC classification number: F22B21/081 F22B37/001

    Abstract: A package boiler (10) of unitary construction embodying based on the particular pressure and temperature conditions required thereof a predetermined standard profile selected from a plurality of standard profiles collectively capable of providing within a range of design pressures up to 1050 psig and a range of design superheater outlet temperatures up to 750 degrees F steam production within a range of 20,000 to 180,000 pounds per hour, and embodying based on the nature of the fuel to be burned therewithin a front wall (14, 14') of predetermined construction selected from front walls (14) of rigidized ceramic fiber for use when the fuel being burned therewithin is light oil and natural gas, front walls (14) of heavy castable refractory for use when the fuel being burned therewithin is heavy oil and other special fuels, and front walls (14') that are fully water-cooled.

    Abstract translation: 一种整体结构的包装锅炉(10),其基于特定压力和温度条件而要求,其具有从多个标准型材中选择的预定标准轮廓,该标准轮廓共同能够在设计压力范围内提供高达1050psig和设计范围 过热器出口温度高达750摄氏度,蒸汽产量在20,000至18万磅/小时的范围内,并且基于在其中在要被燃烧的燃料的性质上预定的预定结构的前壁(14,14'),其选自前壁 (14)的刚性陶瓷纤维,当燃料燃烧在其中时是轻油和天然气,当被燃烧的燃料是重油和其它特殊燃料时使用的可重浇注耐火材料的前壁(14)和前壁 (14')完全水冷。

    AIR POLLUTION CONTROL AND HEAT RECOVERY SYSTEM
    45.
    发明申请
    AIR POLLUTION CONTROL AND HEAT RECOVERY SYSTEM 审中-公开
    空气污染控制和热回收系统

    公开(公告)号:WO1996018453A1

    公开(公告)日:1996-06-20

    申请号:PCT/US1995015477

    申请日:1995-12-01

    CPC classification number: C01B17/74 B01D53/8637 Y02A50/2327 Y02P20/129

    Abstract: A coal fired power plant includes the catalytic reduction of NOx in the flue gas and the catalytic oxidation of SO2 to SO3 followed by the hydration of the SO3 to H2SO4 vapor and then the condensation to H2SO4 liquid. The condensation takes place in a wet sulfuric acid condenser (36) by heat exchange with incoming combustion air. A portion of the heat picked up by that combustion air is used to provide a portion of the heat for the condensate from the steam turbine (48). The combustion air is then fed to an air preheater (34) and to the steam generator (10) as primary and secondary combustion air.

    Abstract translation: 一个燃煤电厂包括催化还原烟气中的NOx和将SO2催化氧化成SO3,随后将SO 3水合成H 2 SO 4蒸气,然后与H 2 SO 4液体冷凝。 冷凝通过与进入的燃烧空气进行热交换在湿硫酸冷凝器(36)中进行。 由该燃烧空气拾取的一部分热量用于为来自蒸汽轮机(48)的冷凝物提供一部分热量。 然后将燃烧空气作为主燃烧空气和二次燃烧空气送入空气预热器(34)和蒸汽发生器(10)。

    FLUIDIZED BED WITH IMPROVED NOZZLE CONSTRUCTION
    46.
    发明申请
    FLUIDIZED BED WITH IMPROVED NOZZLE CONSTRUCTION 审中-公开
    具有改进喷嘴结构的流化床

    公开(公告)号:WO1996008676A1

    公开(公告)日:1996-03-21

    申请号:PCT/US1995009257

    申请日:1995-07-24

    CPC classification number: B01J8/1818 F23C10/20

    Abstract: A fluidized bed system (10) which includes a housing (12) and a floor (14) comprising a plurality of generally parallel tubes (32) joined by fins (34) intermediate adjacent tubes (32). A plurality of nozzle assemblies (30, 50) extend generally vertically in mutually parallel relationship from the floor (14). Each of the nozzle assemblies (30, 50) includes a generally cylindrical body (36) having a centerline disposed in generally perpendicular relationship to the floor (14) and each of the bodies (36) includes a plurality of heads (38) extending generally radially therefrom at an axial extremity thereof remote from the floor (14). In some embodiments of the invention each of the heads (38) are uniformly spaced around the circumferential extent of each of the bodies (36) and each of the heads (38) is generally cylindrical and has a centerline. Each of the centerlines of the heads (38) may be disposed at an angle with respect to a horizontal plan and the angle may be approximately twenty degrees. In some forms of the invention some of the nozzle assemblies (30, 50) each have four heads (38) and some of the nozzle assemblies (30, 50) have two heads (38). In other embodiments all of the nozzle assemblies (30, 50) have two heads (38). In other embodiments all of the nozzle assemblies (30, 50) have four heads (38).

    Abstract translation: 一种流化床系统(10),其包括壳体(12)和底板(14),所述底板(14)包括多个大致平行的管(32),所述多个平行的管(32)通过邻近管(32)之间的翅片(34)连接。 多个喷嘴组件(30,50)从底板(14)以大致垂直的方式相互平行的关系延伸。 每个喷嘴组件(30,50)包括大致圆柱形的主体(36),其具有大致垂直于地板(14)的中心线,并且每个主体(36)包括多个头部 在其远离地面(14)的轴向末端径向地从其径向延伸。 在本发明的一些实施例中,每个头部(38)围绕每个主体(36)的圆周范围均匀间隔开,并且每个头部(38)通常为圆柱形并且具有中心线。 头部(38)的每个中心线可以相对于水平平面设置成一定角度,并且该角度可以是大约二十度。 在本发明的一些形式中,一些喷嘴组件(30,50)各自具有四个头部(38),并且一些喷嘴组件(30,50)具有两个头部(38)。 在其他实施例中,所有喷嘴组件(30,50)具有两个头部(38)。 在其他实施例中,所有喷嘴组件(30,50)具有四个头部(38)。

    DUAL GUIDE TUBE FOR INSPECTION OF HEAT EXCHANGERS
    47.
    发明申请
    DUAL GUIDE TUBE FOR INSPECTION OF HEAT EXCHANGERS 审中-公开
    双向导管检查热交换器

    公开(公告)号:WO1995019526A1

    公开(公告)日:1995-07-20

    申请号:PCT/US1994010326

    申请日:1994-09-12

    CPC classification number: G01B7/287 F22B37/003 F22B37/005 G01B7/13 G21C17/017

    Abstract: A method and apparatus for simultaneously inspecting the inner wall of two tubes, such as in a heat exchanger, including a base member which supports first and second guide tubes for guiding inspection probes of a testing system. The guide tubes are held by the base member a predetermined distance apart to align with a pair of tubes of the heat exchanger. The guide tubes may be fixed with respect to the base member by clamping collars and spacer bushings, or may be mounted for longitudinal movement with respect to the base member against the bias of a coil spring. A robotic tool delivery system is used to automatically move the dual guide tube assembly through a predetermined sequence to optimize testing positions where two testing probes may be used simultaneously.

    Abstract translation: 一种用于同时检查两个管的内壁的方法和装置,例如在热交换器中,包括支撑用于引导测试系统的检查探针的第一和第二引导管的基座构件。 引导管由基部构件保持预定距离,以与热交换器的一对管对准。 引导管可以通过夹紧套环和间隔套筒相对于基座构件固定,或者可以抵抗螺旋弹簧的偏压而相对于基座构件纵向移动。 机器人工具传送系统用于通过预定的顺序自动移动双引导管组件,以优化可同时使用两个测试探针的测试位置。

    DIAGNOSTIC DATA ACQUISITIONER FOR A VALVE
    48.
    发明申请
    DIAGNOSTIC DATA ACQUISITIONER FOR A VALVE 审中-公开
    阀门诊断数据采集器

    公开(公告)号:WO1995008071A1

    公开(公告)日:1995-03-23

    申请号:PCT/US1994009397

    申请日:1994-08-19

    CPC classification number: F16K37/0083 F16K37/0091 Y10T137/7761 Y10T137/8175

    Abstract: A data acquisition system (1) by which environmental parameters proximate to plant installed valves (2) may be monitored, recorded and correlated with other valve operating data. The system includes sensors (8) for sensing environmental parameters such as gas/vapor concentration, temperature or humidity. The system also includes sensors for sensing changes in the actuating variable (34) and sensors for sensing valve stem displacement (58). The sensors (8, 34, 6) generate electrical signals proportional to the value of the sensed parameter. First data interface equipment (32, 42, 43) is provided for digitizing the sensed actuating variable as the actuating variable is changed to displace the stem, preferably a full stroke from the open-to-close-to-open positions or vice versa. Second data interface equipment (7, 45) is provided for digitizing the sensed environmental parameter as the stem is displaced. Third data interface equipment (6, 45) is provided for digitizing the sensed stem displacement. The digitized data are stored, preferably with a computer (45) and associated random access memory, and can later be uploaded for use in, for example, a plant database system or correlated to evaluate valve operability.

    Abstract translation: 数据采集​​系统(1),可以监测,记录与工厂安装的阀(2)相邻的环境参数并与其他阀操作数据相关联。 该系统包括用于感测诸如气体/蒸汽浓度,温度或湿度的环境参数的传感器(8)。 该系统还包括用于感测致动变量(34)中的变化的传感器和用于感测阀杆位移(58)的传感器。 传感器(8,34,6)产生与感测参数的值成比例的电信号。 提供了第一数据接口设备(32,42,43),用于随着致动变量的改变使数字化感测到的致动变量,从而使杆更好地从打开到关闭到打开位置的整个冲程移位,反之亦然。 第二数据接口设备(7,45)被提供用于当杆被移位时数字化感测到的环境参数。 第三数据接口设备(6,45)被提供用于数字化感测到的杆位移。 存储数字化数据,优选地与计算机(45)和相关联的随机存取存储器一起存储,并且可以稍后上传以用于例如工厂数据库系统或相关联以评估阀的可操作性。

    PNEUMATIC OPERATED VALVE WITH STROKE TIMING
    49.
    发明申请
    PNEUMATIC OPERATED VALVE WITH STROKE TIMING 审中-公开
    带有时态的气动操作阀

    公开(公告)号:WO1994028341A1

    公开(公告)日:1994-12-08

    申请号:PCT/US1994003943

    申请日:1994-04-12

    Abstract: A non-intrusive method for timing the full operational motion of a valve plug (26) in an electrically actuated, pneumatically operated valve (10). An actuation signal is sent to the valve actuator (54). A coil of wire (68) around the valve actuator solenoid (56), an accelerometer (70) on the solenoid slug (64), or a connection to a permanent pressure sensor (72), non-intrusively senses arrival of the actuation signal at the valve. The time measuring equipment (12) begins timing when the actuation signal is sensed. A laser valve motion sensor (74) then non-intrusively senses when the valve plug reaches a limit of motion. The time measuring equipment ends timing when the valve plug reaches a limit of motion. The time measuring equipment then records the elapsed time from the sensing of the arrival of actuation signal to the final limit of motion of the valve plug.

    Abstract translation: 一种用于对电动致动的气动操作阀(10)中的阀塞(26)的完全运动运动进行定时的非侵入式方法。 致动信号被发送到阀致动器(54)。 围绕阀致动器螺线管(56)的线圈(68),螺线管段(64)上的加速度计(70)或与永久压力传感器(72)的连接,非侵入式地感测致动信号的到达 在阀门。 当感测到致动信号时,测量设备(12)开始计时。 然后,当阀塞达到运动极限时,激光阀运动传感器(74)非侵入式地感测。 时间测量设备在阀塞达到运动极限时结束正时。 时间测量设备然后将从致动信号到达的经过时间记录到阀塞的最终运动极限。

    VISUAL INSPECTION TOOL
    50.
    发明申请
    VISUAL INSPECTION TOOL 审中-公开
    视觉检测工具

    公开(公告)号:WO1994024675A1

    公开(公告)日:1994-10-27

    申请号:PCT/US1993009566

    申请日:1993-10-07

    Abstract: A visual inspection tool (24), attached to a manipulator (20), is disclosed for inspecting a tube end (26) of a tube sheet of a steam generator (12). A fuse light (40) is mounted inside the housing adjacent to a light guide (46). An outer mirror (58) surrounds the light guide and has a cutaway portion (60) adjacent to the fuse light to allow light into the light guide. An inner mirror (64) is located at the top of the light guide and is supported on the housing axis. The outer and inner mirrors are designed such that light directed by the light guide to the top of the housing simultaneously reflects from the outer and inner mirrors onto the outer (120) and inner (118) portions of the tube end, respectively. A camera (78) receives the light reflected by the tube end and generates tube image data. At a remote location, a technician can see a panoramic view of the tube without repositioning the manipulator (20).

    Abstract translation: 公开了附接到操纵器(20)的目视检查工具(24),用于检查蒸汽发生器(12)的管板的管端(26)。 保险丝灯(40)安装在壳体内,与导光件(46)相邻。 外镜(58)围绕光导并且具有与保险丝灯相邻的切口部分(60),以允许光进入光导。 内反射镜(64)位于光导的顶部并且被支撑在壳体轴线上。 外反射镜和内反射镜被设计成使得由导光体引导到壳体顶部的光分别从外镜和内镜反射到管端的外(120)和内(118)部分上。 相机(78)接收由管端反射的光并产生管图像数据。 在远程位置,技术人员可以看到管的全景视图而不重新定位操纵器(20)。

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