System and method for detection of rotor eccentricity baseline shift
US7742881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D25/285
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method to determine eccentricity of a rotor in a turbine including: collecting sensor data of rotor eccentricity for a plurality of startup operations; establishing a baseline eccentricity value using the sensor data corresponding to a selected startup operation; determining an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation; determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, and reporting a rotor eccentricity condition based on the rotor eccentricity difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.