公开(公告)号：US06302974B1

公开(公告)日：2001-10-16

申请号：US09296617

申请日：1999-04-23

申请人： Peter L. Wilhelm ,  Bruno Stoeckli

发明人： Peter L. Wilhelm ,  Bruno Stoeckli

IPC分类号： C21D168

CPC分类号： C21D1/30 ,  C21D1/00 ,  C21D7/00 ,  C21D7/12 ,  C21D9/0068 ,  C21D9/08 ,  C21D2281/00

摘要： An austenitic rounding fixture is inserted into the horizontal joint of a turbine casing. The casing is then assembled and stress relief cycle is carried out, resulting in rerounding of the casing and relief of residual stresses. Since an austenitic material has a higher thermal expansion coefficient than the metallic materials of conventional turbine casings, the rounding fixtures expand more than the casing during a stress relief cycle. The length of the fixtures are designed in such a way that at stress relief temperature the casing is slightly over-rounded. After the stress relief, the casing is rerounded and the austenitic rounding Fixtures is disengaged. The rounding fixture is installed in a cold condition (or with minimal heat for heavily collapsed casings). The removal of the rounding fixtures is easy since a clearance exists between the casing and the fixtures; the spring back of the casing is far less then the contraction of the fixtures. The stresses in the casing are far less than if rounding plates would have been used since the maximum deformation occurs at stress relief temperature.

摘要翻译： 奥氏体圆形夹具插入到涡轮机壳体的水平接头中。 然后组装外壳并执行应力消除循环，导致外壳的重新环绕并减轻残余应力。 由于奥氏体材料具有比常规涡轮机壳体的金属材料更高的热膨胀系数，因此在应力消除循环期间，圆整装置比套管膨胀得更多。 固定装置的长度设计成使得在应力消除温度下，套管稍微过圆。 应力消除后，外壳被围绕，奥氏体圆形夹具脱开。 圆形夹具安装在寒冷的条件下（或对于严重倒塌的外壳而言具有最小的热量）。 由于在壳体和固定装置之间存在间隙，因此拆卸圆形装置是容易的; 套管的弹簧背部远小于固定装置的收缩。 外壳中的应力远远小于如果使用圆形板，因为在应力消除温度下发生最大变形。

公开(公告)号：US5319572A

公开(公告)日：1994-06-07

申请号：US770192

申请日：1991-10-02

申请人： Peter L. Wilhelm ,  Robert F. Gray ,  Maurice A. Jenkins

发明人： Peter L. Wilhelm ,  Robert F. Gray ,  Maurice A. Jenkins

IPC分类号： G05B23/02 ,  G06F15/20

CPC分类号： G05B23/0235

摘要： An electrohydraulic fluid system monitors the fluid line 1, reservoir 2, motor pumps 4 and 6, accumulators 10 and drain line 13 in an electrohydraulic fluid system. The electrohydraulic fluid monitor system includes sensors 14-40 to detect temperature, pressure, fluid level and motor pump current in the electrohydraulic fluid system. Signals from these sensors are converted 54 by an analog to digital converter into digital signals read by a processor unit 58 and stored by the processor unit as data for diagnostic analysis. In one embodiment of the present invention, the processor unit 58 stores the information and compares the information to predetermined threshold amounts or to previous values and outputs a malfunction indication to a status display, responsive to results of these comparisons, which indicates the presence or nonpresence of a malfunction in the electrohydraulic fluid system. In another embodiment of the present invention, the microprocessor outputs the information to an artificial intelligence system 94. The artificial intelligence system 94 applies a set of diagnostic rules from a rule storage 96 to obtain a malfunction diagnosis or hypothesis that indicates other rules to be applied to diagnose the malfunction. As a result, the present invention rapidly detects or diagnoses malfunctions in the electrohydraulic fluid system.

摘要翻译： 电动液压系统在电动液压系统中监测流体管线1，储存器2，电动泵4和6，蓄能器10和排出管线13。 电液液体监测系统包括用于检测电液压系统中的温度，压力，液位和电机泵电流的传感器14-40。 来自这些传感器的信号由模数转换器54转换成由处理器单元58读取并由处理器单元存储的数字信号，作为用于诊断分析的数据。 在本发明的一个实施例中，处理器单元58存储信息并将该信息与预定阈值或先前值进行比较，并响应于这些比较的结果向状态显示输出故障指示，其指示存在或不存在 在电液体系统中出现故障。 在本发明的另一个实施例中，微处理器将该信息输出到人工智能系统94.人工智能系统94从规则存储器96应用一组诊断规则以获得指示应用其他规则的故障诊断或假设 诊断故障。 结果，本发明能快速地检测或诊断电动液压系统的故障。

公开(公告)号：US4870393A

公开(公告)日：1989-09-26

申请号：US179098

申请日：1988-04-08

申请人： Owen R. Snuttjer ,  Peter L. Wilhelm

发明人： Owen R. Snuttjer ,  Peter L. Wilhelm

IPC分类号： H02K9/04 ,  H02K9/08 ,  H02K9/24

CPC分类号： H02K9/24

摘要： The ratio of the pressure change across a portion of the ventilation system of a hydrogen cooled electric power generator to the pressure increase across a reference blower, preferably the purity blower, is compared to a base ratio to generate an alarm when the difference in ratios exceeds a predetermined amount indicative of a failure within the ventilation system.

摘要翻译： 将氢冷却发电机的通风系统的一部分上的压力变化与参考鼓风机（优选纯度鼓风机）之间的压力增加率与基准比值进行比较，以便当比率差超过时产生报警 指示通风系统内的故障的预定量。

公开(公告)号：US4852850A

公开(公告)日：1989-08-01

申请号：US49364

申请日：1987-05-14

申请人： Peter L. Wilhelm ,  Gilbert F. Hyde

发明人： Peter L. Wilhelm ,  Gilbert F. Hyde

IPC分类号： F16K31/122 ,  F01D17/10 ,  F01D17/26

CPC分类号： F01D17/26 ,  F01D17/105

摘要： A steam bypass valve system for a steam turbine. The system provides a supplemental hydraulic seating force to a fast acting bypass valve after the valve plug is positioned against the valve seat with a spring force. The system also provides for quick hydraulic relief in order to retain the fast opening characteristics of a single acting hydraulic valve.

摘要翻译： 一种用于汽轮机的蒸气旁通阀系统。 在阀塞以弹簧力抵靠在阀座上的位置之后，该系统为快速作用的旁通阀提供补充的液压就座力。 该系统还提供快速液压释放，以保持单作用液压阀的快速开启特性。