Detecting internal abnormalities in turbines
US4335600A · kind A · utility
53Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1980 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Nov 13, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C3/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Undesirable internal changes in a running turbine are diagnosed by monitoring the dynamic pressure of the stream of fluid and the structure-borne vibration of the stationary shell. Incipient erosion of blades, material deposit buildup, and other abnormalities are detected by analyzing the dynamic pressure and vibration signal utilizing several signal processing techniques. A better maintenance schedule can be derived, this also serves as a turbine efficiency monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.