公开(公告)号：US4318179A

公开(公告)日：1982-03-02

申请号：US155379

申请日：1980-06-02

申请人： Jens Kure-Jensen ,  Adrian Missana

发明人： Jens Kure-Jensen ,  Adrian Missana

IPC分类号： F16C17/24 ,  G01B7/30 ,  G01K1/02 ,  G01M13/04

CPC分类号： F16C17/24 ,  F16C17/04 ,  G01B7/30 ,  G01K1/026 ,  G01M13/04

摘要： An apparatus for continuously monitoring the alignment condition of a thrust bearing based on a pair of temperature differences is adapted to utilize either analog or digital means. The monitor is particularly applicable for use in large turbines, particularly those coupled to generators for the production of electric power. Bearing misalignment and other variables are determined from temperature measurements of the oil feed temperature and from two temperature measurements made on diametrically opposite portions of the bearing surface. The apparatus of the present invention is made possible by observed predetermined relations between certain computed temperature differences which relate bearing thrust and misalignment moment and which also relate minimum oil film thickness and actual misalignment slope.

摘要翻译： 基于一对温差连续地监测推力轴承的对准状态的装置适于采用模拟或数字方式。 该显示器特别适用于大型涡轮机，尤其适用于与用于生产电力的发电机连接的大型涡轮机。 轴承未对准和其他变量由油进料温度的温度测量以及在轴承表面的直径相对部分上进行的两个温度测量确定。 本发明的装置可以通过观察到关于轴承推力和不对中力矩的某些计算温度差之间的预定关系，并且还涉及最小油膜厚度和实际的未对准斜率。

公开(公告)号：US5344160A

公开(公告)日：1994-09-06

申请号：US986573

申请日：1992-12-07

申请人： Steven P. Scarlata ,  Adrian Missana

发明人： Steven P. Scarlata ,  Adrian Missana

IPC分类号： F01D11/02 ,  F16J15/00 ,  F16J15/447

CPC分类号： F16J15/004 ,  F01D11/02

摘要： A shaft sealing system for a steam turbine includes at the high-pressure inlet end an outer air seal (40 ) and an outer steam seal (42 ) each comprised of segmented circumferential seals and a plurality of labyrinth seals (44, 46, 48). The low-pressure end of the turbine is provided with a segmented circumferential seal (60) substantially precluding ingress of air past the seal. The steam leaking past the inner two labyrinth seals (46 and 48) is returned to a stage of the turbine by a first leak-off pipe system (50). Air leaking past the air seal and steam leaking outwardly past the outer steam seal (42) is piped to the main condenser (58). High-pressure steam between the outer steam seal (42) and the outermost labyrinth seal (44) is piped via a second leak-off path (56) to a turbine stage downstream from the first-mentioned turbine stage.

摘要翻译： 一种用于蒸汽轮机的轴封系统包括在高压入口端处的外部空气密封件（40）和外部蒸汽密封件（42），每个包括分段周向密封件和多个迷宫式密封件（44,46,48） 。 涡轮机的低压端设置有基本上排除空气通过密封件的分段圆周密封件（60）。 通过内部两个迷宫式密封件（46和48）泄漏的蒸汽通过第一泄漏管道系统（50）返回到涡轮机的一级。 通过空气密封的空气泄漏，并且通过外部蒸汽密封件（42）向外泄漏的蒸气被管道输送到主冷凝器（58）。 外部蒸汽密封件（42）和最外面的迷宫式密封件（44）之间的高压蒸汽经由第二泄漏路径（56）被输送到位于首先提到的涡轮级下游的涡轮级。

公开(公告)号：US5333989A

公开(公告)日：1994-08-02

申请号：US995365

申请日：1992-12-23

申请人： Adrian Missana ,  Russell A. Gary

发明人： Adrian Missana ,  Russell A. Gary

IPC分类号： F01D17/10 ,  F01D17/00

CPC分类号： F01D17/10

摘要： Linear electric actuators powered by DC brushless servomotors are individually controlled to position steam turbine valves by way of levers, pins and links to thus eliminate hydraulics and the attendant disadvantages of fluid filtering, conditioning and leakage as well as obtaining more flexible individual valve control, vis-a-vis, camshaft operated hydraulic actuators. Additionally, low friction actuators and springs are employed to automatically close the turbine valves in the event of a power failure.

摘要翻译： 由直流无刷伺服电动机驱动的直线电动执行器被单独控制，以通过杠杆，销和连杆定位汽轮机阀，从而消除液压和流体过滤，调节和泄漏的附带缺点，以及获得更灵活的单独阀控制 凸轮轴操作的液压执行机构。 此外，在电源故障的情况下，使用低摩擦致动器和弹簧来自动关闭涡轮阀。