-
公开(公告)号：US20120272740A1
公开(公告)日：2012-11-01
申请号：US13456258
申请日：2012-04-26
IPC分类号： G01H1/00
CPC分类号： G01H1/003 , F16C32/0444
摘要： A vibration characteristic measuring apparatus includes a magnetic bearing that generates magnetic force on the rotating body of a multi-stage centrifugal compressor, a displacement sensor that measures the vibration amplitude of the rotating body, a current amplifier that supplies a current to the magnetic bearing, and an excitation controller which outputs an excitation control signal for applying vibration to the rotating body and which measures the response characteristics of the vibration of the rotating body to the excitation control signal. The excitation controller outputs a rotating body control signal obtained by adding a vibration eliminating signal for eliminating unbalance vibration of the rotating body to the excitation control signal when measuring the response characteristics, and the current amplifier supplies a current that generates magnetic force in accordance with the rotating body control signal to the magnetic bearing.
摘要翻译： 振动特性测量装置包括：在多级离心式压缩机的旋转体上产生磁力的磁性轴承;测量旋转体的振动幅度的位移传感器;向磁性轴承供给电流的电流放大器; 以及激励控制器，其输出用于对旋转体施加振动的激励控制信号，并且测量旋转体的振动对激励控制信号的响应特性。 励磁控制器在测量响应特性时，输出通过增加用于消除旋转体的不平衡振动的振动消除信号而获得的旋转体控制信号，并且电流放大器根据所述激励控制信号提供产生磁力的电流 旋转体控制信号到磁轴承。
-
公开(公告)号：US20100034646A1
公开(公告)日：2010-02-11
申请号：US12534407
申请日：2009-08-03
IPC分类号： F04D29/08
CPC分类号： F04D29/102 , F04D29/0516 , F16J15/4472
摘要： The present invention provides a centrifugal compressor that inhibits possible leakage while reducing a destabilizing fluid force generated in a seal to prevent the possible instable vibration of a rotor. The centrifugal compressor includes a casing, a rotor rotatably installed in the casing and having an impeller, and seals provided in the clearance between the casing and the rotor to prevent a fluid from leaking through the clearance from a high pressure side to a low pressure side. The rotor rotates to compress gas. For example, the balance piston seal is composed of a damper seal with a plurality of holes and a labyrinth seal with an annular parallel groove; the damper seal and the labyrinth seal are continuously provided. The damper seal is disposed on the high pressure side in a leakage flow direction. The labyrinth seal is disposed on the low pressure side in the leakage flow direction.
摘要翻译： 本发明提供一种离心压缩机，其抑制可能的泄漏，同时减少在密封件中产生的不稳定的流体力，以防止转子可能的不稳定的振动。 离心压缩机包括壳体，可旋转地安装在壳体中并具有叶轮的转子和设置在壳体和转子之间的间隙中的密封件，以防止流体从间隙从高压侧泄漏到低压侧 。 转子旋转以压缩气体。 例如，平衡活塞密封件由具有多个孔的阻尼器密封件和具有环形平行槽的迷宫式密封件组成; 阻尼器密封件和迷宫式密封件被连续地设置。 阻尼器密封件在泄漏流动方向上设置在高压侧。 迷宫式密封件沿泄漏流动方向设置在低压侧。
-
搜索结果
2 条记录 (耗时 0.019 秒)
