公开(公告)号：WO2014055179A2

公开(公告)日：2014-04-10

申请号：PCT/US2013/057066

申请日：2013-08-28

Applicant: PRAXAIR TECHNOLOGY, INC.

Inventor： STANKO, Michael, J. ,  ROYAL, John, H. ,  ABDELWAHAB, Ahmed, F. ,  SCHWARZ, Carl, L.

IPC: F04D29/46

CPC classification number: F04D27/004 ,  F04B37/08 ,  F04B49/06 ,  F04B49/103 ,  F04B49/20 ,  F04C28/14 ,  F04D17/122 ,  F04D25/06 ,  F04D27/0246 ,  F04D27/0261 ,  F04D27/0269 ,  F04D27/0284 ,  F04D29/053 ,  F04D29/286 ,  F04D29/462 ,  F04D29/464 ,  F04D29/668 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04133 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04781 ,  F25J3/04884 ,  F25J3/04957 ,  F25J2230/20 ,  F25J2230/24 ,  F25J2230/40 ,  F25J2250/02

Abstract: A method and apparatus for producing and controlling flow rate of a compressed gas produced by a compression system having one or more stages of compression formed by a centrifugal compressor or compressors, inlet guide vanes to control flow through the compression stage or stages and an electric motor directly coupled to the stage or stages having a restricted speed zone within which vibrational modes can damage the electric motor. A desired flow rate is obtained by speed adjustment alone and with the inlet guide vanes positioned at 0° when the speed will lie above or below the restricted speed zone. Where a desired flow rate would require extended operation of the electric motor at a speed within the restricted speed zone, the speed is set to the uppermost level of the restricted speed zone and the desired flow rate is obtained through appropriate positioning of the inlet guide vanes.

Abstract translation: 一种用于生产和控制由压缩系统产生的压缩气体的流量的方法和装置，所述压缩系统具有由离心式压缩机或压缩机形成的一个或多个压缩阶段，入口导向叶片以控制通过压缩级或级的流量;以及电动机 直接耦合到具有限制速度区段的阶段或阶段，振动模式可在该阶段或阶段中损坏电动机。 通过单独的速度调节和当速度将位于限制速度区域之上或之下时入口导向叶片位于0°处获得期望的流速。 如果期望的流速需要在限制速度区内的速度下延长电动机的运行，速度被设定到受限制速度区的最高水平，并且通过入口导叶的适当定位获得所需的流速 。

公开(公告)号：WO2015009351A2

公开(公告)日：2015-01-22

申请号：PCT/US2014/038927

申请日：2014-05-21

Applicant: PRAXAIR TECHNOLOGY, INC.

Inventor： STANKO, Michael, J. ,  SCHWARZ, Carl, L. ,  OWENS, William, J.

IPC: F04D13/02

CPC classification number: F04D13/021 ,  F01D5/025 ,  F01D21/045 ,  F04D17/122 ,  F04D25/022 ,  F04D25/06 ,  F04D29/054 ,  F04D29/102 ,  F04D29/122 ,  F04D29/266 ,  F05D2220/40 ,  F05D2260/311 ,  F05D2260/6022 ,  F16D1/06 ,  F16D1/076 ,  F16D9/08

Abstract: A coupling to attach an impeller of a compressor to a shaft of an electric motor. The coupling has a coupling body that is attached at a first of the ends thereof to the impeller and at the opposite second end, to the motor shaft. The coupling body has a deformable section between the first and second ends of the coupling body. The deformable section is configured such that under an unbalanced loading exerted against the coupling body upon a failure of the impeller, the deformable section will permanently deform without the ultimate strength of a material forming the coupling body being exceeded and prior to a permanent deformation of the shaft. In such manner, the electric motor is protected from damage upon a failure of the impeller.

Abstract translation: 用于将压缩机的叶轮连接到电动机的轴的联接器。 联接器具有联接体，其连接体的第一端连接到叶轮并且在相对的第二端附接到马达轴。 联接体在联接体的第一和第二端之间具有可变形部分。 可变形部分构造成使得在叶轮故障时施加在联接体上的不平衡载荷下，可变形部分将永久地变形，而不会超过形成联接体的材料的极限强度，并且在永久变形之前 轴。 以这种方式，保护电动机免受叶轮故障的损坏。

公开(公告)号：WO2013180833A1

公开(公告)日：2013-12-05

申请号：PCT/US2013/035418

申请日：2013-04-05

Applicant: PRAXAIR TECHNOLOGY, INC.

Inventor： ROYAL, John, H. ,  STANKO, Michael, J.

IPC: F04D27/02 ,  F04D29/051

CPC classification number: F04D29/0513 ,  F02C6/12 ,  F04D17/122 ,  F04D25/06 ,  F04D27/02 ,  F04D27/0238 ,  F04D29/0516 ,  F04D29/057 ,  F04D29/058 ,  F05D2240/52 ,  Y10T29/49243 ,  Y10T29/49645 ,  Y10T29/53

Abstract: The present invention provides a method and apparatus of inhibiting a thrust bearing capacity of a compression system from being exceeded during a surge event in which a thrust bearing is biased with a biasing force to increase the thrust bearing overload margin between the capacity of thrust bearing to absorb axial forces and the greatest force produced during the surge event. This biasing force can be produced by appropriately sizing the high pressure seal on the side of the impeller opposite to the inlet of a compressor of the compression system so that the back disk force produced in the high pressure region of the high pressure seal and the low pressure region located inwardly of the high pressure region creates the desired bias force value and direction.

Abstract translation: 本发明提供了一种抑制压缩系统的推力承载能力的方法和装置，该冲击承载能力在喘振事件期间被超过，其中推力轴承由偏压力偏置以增加推力轴承的承载能力之间的推力轴承过载裕度 吸收轴向力和在喘振事件期间产生的最大力。 该偏置力可以通过适当地调整与压缩系统的压缩机的入口相对的叶轮侧的高压密封，使得在高压密封的高压区域中产生的后盘力和低 位于高压区域内部的压力区域产生期望的偏压力值和方向。