Method for detecting coolant leaks in generators
US9488629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N25/72
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for detecting a gas leak in a generator is provided. The system includes a source of a non-corrosive tracer gas, and a subsystem for introducing the non-corrosive tracer gas into the hydrogen cooled generator. An infrared imaging device is adapted to communicate with a notification device to display an image of at least a portion of the hydrogen cooled generator and the non-corrosive tracer gas. The infrared imaging device includes a cooled detector, and a filter with a spectral response between about 3 μm and about 5 μm. The detector and/or the filter is cooled to between about −80° C. and about −200° C. The gas leak will be indicated on the notification device. The generator may hydrogen cooled, and on-line or on-grid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.